aspheric lenses for optics and photonics …€¦ · · 2014-06-03ams technologies ag optotech...

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AMS Technologies AG Optotech DivisionOptoelectronic Components and Systems ASPHERIC LENSES FOR OPTICS AND PHOTONICS

Products for Laser Guides, Measurement Systems, Metrology & Bio Medical

OPTICAL TECHNOLOGIES

Geltech Molded Glass Aspheres Infrared Optics Fiber Collimators GRADIUM Lenses

Geltech Molded Aspheric Lenses

Did you know...That asphere optics from LightPath can actually improve system performance and lower overall cost?

Geltech Precision Molded Aspheric Lenses M O D E R N L E N S E S F O R M O D E R N A P P L I C AT I O N S

For today’s most sophisticated and compact laser systems, aspheres are the most powerful lenses for managing laser light. In these systems, spherical aberration is the most prevalent performance detractor. It arises from the use of spherical surfaces and artificial limits focusing and collimating accuracy.

Although it has been known for centuries that spherical geometry is not optimal for refracting light, the expense of fabricating non-spherical (aspheric) surfaces has inhibited their use. With the breakthrough of LightPath’s glass molding technology, this optimal lens geometry has become a reality.

The benefits of glass molding technology become apparent when traditional methods of grinding and polishing become cost-prohibitive. The direct molding process eliminates the need for any grinding or polishing, offering aspheric lenses at practical prices for system designers. Molding is the most consistent and economical way to produce aspheres in large volumes.

LightPath’s aspheric lenses are inspected and optically tested to ensure complete customer satisfaction. Visual cosmetic inspection for scratch/dig is performed on 100% of all lenses per MIL-PRF-13830B. Most lenses are guaranteed to pass 40/20 scratch/dig, but other inspection criteria, such as 60/40 or 20/10, can be provided upon request.

GUARANTEED PERFORMANCE

Spherical System

Working Distance

CenterThickness

LaserWindow

EdgeThickness

Aspheres provide elegant single-element simplicity

Clear Aperture

OuterDiameter

Aspherical Lens

Molded lenses are used in a variety of photonics products: barcode scanners, laser diode to fiber couplings, optical data storage, and medical lasers, to name a few. In many of these applications, the material of choice is optical glass because of its durability and performance stability over a wide environmental range. High power transmittance is also an added advantage.

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Performance and CustomizationD I F F R AC T I O N L I M I T E D P E R F O R M A N C E

The primary optical specification is the root-mean-squared transmitted wavefront error (RMS WFE). It is measured on a phase shift interferometer at the wavelength of 632.8nm. Most of our lenses are guaranteed to be diffraction limited, which means the RMS WFE < 0.070 λ at the design wavelength.

N U M E R I C A L A P E RT U R E

Our molded aspheric lenses are available with numerical apertures ranging from 0.15 up to 0.77. Lower numerical apertures are best when a large depth of focus is important or when you need nearly circular beams. Applications that would use a low numerical aperture include bar code scanners, surveying instruments, and small weapons sights. High numerical aperture lenses are important when you need the maximum light capture from a diode laser. High numerical aperture applications include data storage and industrial printing.

S H A P E S A N D S I Z E S

With lenses available in a multitude of shapes and sizes, up to 22mm in diameter, LightPath will be able to provide you with the perfect lens for your unique application.

D I F F R AC T I V E H Y B R I D L E N S E S

By combining a refractive aspheric lens with a diffractive feature on one surface, you can achieve sophisticated beam shaping of your laser light. You can also use diffractive hybrid lenses tomake your system achromatic over a range of wavelengths. LightPath hybrid lenses are custom designed to each particular application.

LightPath’s unique molding process allows us to custom manufacture a lens based on your specific requirements. We can provide lenses in a number of different form factors from a simple aspheric lens, to a wafer-based lens and even a lens molded into a metal housing. Some of LightPath’s lens molding capabilities include:• Wafer Lenses • Anamorphic Lenses• Molded-in-Place

C H O O S E F RO M A VA R I E T Y O F F O R M FAC TO R S F O R C U S TO M D E S I G N S

Cylindrical Metal HoldersSquare HoldersT-HoldersCustom Holders

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o

o

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Several of our standard lenses are available pre-mounted in metal holders. Using our unique Mold-In-Place (MIP) technology, we can mold the lens directly inside a steel holder, eliminating the need for adhesives. We can also epoxy our lenses into stainless steel or Kovar mounts so you can weld them directly into your system.

Glass Types and Coating OptionsO P T I M U M P E R F O R M A N C E W I T H O P T I M U M L E N S E S

LensCode Glass Type Refractive

IndexAbbé

Number CTE dn/dT Equivalent Glasses RoHS ✓ Compliance

352xxx ECO-550 1.603 νd = 50.02 11.62 x 10-6/°C 2.39 x 10-6/°C N/A ✓353xxx H-FK61 1.495 νd = 81.20 13.8 x 10-6/°C -6.6 x 10-6/°C Hoya-FCD1 & Ohara S-FPL51 ✓354xxx D-ZK3 1.586 νd = 60.71 7.6 x 10-6/°C 3.2 x 10-6/°C Hoya M-BACD5N & Ohara L-BAL35 ✓355xxx D-ZLaF52La 1.806 νd = 40.79 6.9 x 10-6/°C 6.5 x 10-6/°C Ohara L-LAH53, Hoya M-NBFD130, Sumita K-VC89 ✓356xxx L-LaL12 1.674 νd = 55.00 6.9 x 10-6/°C 6.5 x 10-6/°C CDGM D-Lak5 ✓357xxx D-LaK6 1.690 νd = 52.65 6.9 x 10-6/°C 6.5 x 10-6/°C Hoya M-LAC130 & Ohara L-LAL13 ✓

ECO-550352xxx Series of LensesEuropean and Japanese environmental regulations have restricted the use of lead and other hazardous substances in optical components. ECO-550 is an environmentally friendly alternative to conventional moldable glasses. It has similar properties to C-0550, but does not contain hazardous materials.

D-ZK3354xxx Series of LensesThis glass is best suited for those applications that require a low cost glass for higher volume manufacturing.

D-ZLaF52La355xxx Series of LensesThis glass has a higher index of refraction than ECO-550 and is best suited for those applications that re-quire a higher numerical aperture and need to main-tain RoHS compliance.

L-LaL12356xxx Series of Lenses

G E LT E C H A S P H E R I C L E N S C OAT I N G S

Standard Anti-Reflective CoatingsLightPath offers a variety of multilayer broadband coatings to reduce the back reflection from a nominal 6% for un-coated lenses. The choice of which AR coating is appropriate depends on the type of glass the lens is made from and the wavelength at which the lens will be used.

* LightPath’s rigorous qualification process ensures all standard coatings will pass the abrasion and adhesion resistance requirements of ISO+9211-4-196.

Standard Coatings*

Lens Series Coating λ Range (nm) Reflectivity

352xxx, 353xxx, 354xxx, 355xxx MLBB-A 350 - 700 Ravg 0.50%

352xxx, 354xxx, 355xxx MLBB-B 600 - 1050 Rmax< 1.00%

352xxx, 354xxx, 355xxx MLBB-C 1050 - 1600 Rmax< 1.00%

355xxx MLBB-Q 1300 - 1700 Rmax< 0.25%

356xxx, 357xxx UVA 350 - 500 Rmax< 1.00%

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H-FK61353xxx Series of LensesThese glasses have been selected for their outstand-ing UV & Green transmission properties.

D-LaK6357xxx Series of LensesThese glasses have been selected for their outstand-ing UV & Blue transmission properties.

Standard Glass Internal Transmission Curves (5mm thickness)


Typical Coating CurvesB Coating

575 800 850650600 900 950700 750 1000 1050 11000

0.2

0.6

0.4

0.8

1.0

Wavelength (nm)

)

C Coating

160014001300 1700150011001000 1200

Wavelength (nm)

)

0

0.2

0.6

0.4

0.8

1.0

Q Coating

Wavelength (nm)

Re�e

ctan

ce (%

)1550 1600140013501300 1650 17001450 1500

0

0.2

0.6

0.4

0.8

1.0

A Coating

600 650550500450 625575525475

Wavelength (nm)

Re�e

ctan

ce (%

)

0

0.2

0.6

0.4

0.8

1.0

400 425375350 675 700

UVA Coating

LightPath offers the option to design a custom lens to meet your specifications. Our in-house engineering and manufacturing teams will work with you to design a lens to meet your unique needs.

Customizability

LightPath also offers a wide range of custom coatings. Custom coatings include dual band, triple band, and V anti-reflection coatings. LightPath can also provide reflectivity coatings for aspheric mirror applications.

Contact us today for a quote on your custom design.

Manufacturing Tolerances

Parameter Typical Tolerance

Focal Length ± 1%

Center Thickness (CT) ± 0.025mm

Outer Diameter (OD) ± 0.015mm

Wedge (arcmin) 4

Power/Irregularity (fringes) 3/1

Surface Roughness 15nm

Surface Quality (scratch/dig) 40/20

D I O D E C O L L I M AT I O N

Choosing the Right Aspheric Lens

(ϕ) = sin-1 (NA)

NA = n • sin (ϕ)

One of the most common uses for aspheric lenses is in the collimation of edge emitting diode lasers. With over 70 standard lenses in LightPath’s catalog to choose from, this can sometimes be a confusing task.

Due to the way that the laser cavity is constructed in edge emitting diode lasers, light is emitted in a diverging, elliptical geometry - so the divergence is typically specified in both the x and y axes separately. The axis with the larger divergence is called the “fast axis” and the axis with the smaller divergence is called the “slow axis”.

When selecting a lens to collimate the laser, first consider the Numerical Aperture of the lens. If the application requires a high amount of the laser light to be coupled through the system, a lens with a high enough NA must be chosen. The NA of a lens is a measure of the maximum amount of divergence that the lens can capture from the laser. Ideally, a lens should be used that has an NA higher than the NA of the laser’s fast axis. If not, the laser will “clip” the lens causing some of th e light to be wasted. To convert the NA to the divergence angle (and vice-versa), use this formula.

In most cases n = 1 since the NA of the laser is defined in air. Therefore, solving for the equation is simplified to:

It is important to note that ϕ is the half angle of the divergence cone and is given at the marginal ray (not l/e2 or half angle half max). After the minimum NA necessary for the lens is determined, next consider what beam diameter is preferred. Although ray-tracing is necessary to

precisely determine the beam diameter for a given NA source with a particular lens, it can be approximated with the following formula.

Some laser manufacturers give the NA of the source in different terms, such as half max (50% point) or l/e2 (87% point). Whatever type of number is entered into the formula for the NA of the source will be the same type of number given for the beam diameter. For example, if the half max NA for a laser is used with the above formula, you will get the half max beam di-ameter. There is no simple way to convert from a half max number or a l/e2 beam diameter to a full beam diameter for a specific source because it depends on the intensity profile of the source itself. A reasonable approximation, though, for most edge emitting diode lasers is to assume a Gaussian beam profile. Using this beam profile, you can convert the beam diameters as follows:

1. To convert a half max beam diameter to a full beamdiameter, multiply the diameter by 2.576.

2. To convert a l/e2 beam diameter to a full beam diameter, multiply the diameter by 1.517.

Remember that most edge emitting diodes are elliptical, so the beam diameter will be different in the x-axis versus the y-axis. Use the formula above to calculate the beam diameter in both axes to determine the shape of the collimated, elliptical beam.

Beam Diameter 2 • EFL • NA ~=

where EFL is the effective focal length of the lens and NA is the numerical aperture of the source (not the NA of the lens).

Important Note:


F I B E R C O U P L I N G

Choosing the Right Aspheric Lens

For Fiber CouplingAnother common use for apsheric lenses is to couple laser light into optical fibers. Choosing the right lens or lenses to do the coupling is important to maintain high efficiency in the optical system. The guide below is intended to show how best to do this while using off-the-shelf components. This guide assumes that the input laser light has already been collimated (not diverging). When selecting a lens to focus light into a fiber, first consider what focal length lens is needed. Let’s revisit the formula given previously.

Beam Diameter 2 • EFL • NA ~=

Solving for EFL it becomes:

where NA is the numerical Aperture of the fiber that is used for the coupling. It is important to note that the EFL value that is calculated above is the minimum EFL needed to couple the light completely into the fiber. Longer EFL lenses can be used, but the spot on the fiber tip will become larger. Therefore, it is best practice to use the shortest EFL lens possible that is larger than the minimum value specified above.

Example: Suppose you wish to focus a collimated beam with a full beam diameter of 2.0mm into a 50 micron multimode fiber (Nufern GI50/125S).

The fiber NA given by the manufacturer is approximately 0.20. Fiber NA is normally given at the 99% power point (as opposed to 1/e2 or half max), we can use the full beam diameter given.

So it is best to look for a lens with an EFL of at least 5.0mm and a clear aperture at least 1.942mm (in order to capture the full collimated beam). One might consider the 354430 lens for its 5mm EFL (at 1550nm), but its 1.5mm clear aperture will not capture the full collimated beam. A better choice might be the 354550 lens. Its 6.10mm EFL at 1550nm becomes 5.94mm at 660nm. The lens also has a large enough clear aperture (2.2mm) to capture the entire input beam.

Beam Diameter 2 • NA

EFL ~=

Beam Diameter 2.0 2 NA 2 • 0.2

EFL 5.0mm~= ~= ~=

Standard Aspheric DesignsH I G H - P E R F O R M A N C E O P T I C S F O R A VA R I E T Y O F A P P L I C AT I O N S

• Benefit from the quality and performance of all-glass aspheres

• Easily transition from prototype phase to high-volume production

• Customize to fit your application or choose from over 100 standard aspheric designs

• RoHS-compliant, ultra-high quality glass

Aspheric lenses are known for their optimal performance but the expense of fabricating them has inhibited their use. LightPath’s glass molding technology has enabled high volume production of aspheric optics while maintaining the highest quality at an affordable price. Because molding is the most consistent and economical way to produce aspheres in large volumes, LightPath has perfected this method to offer the most precise aspheric lens available. LightPath offers standard and custom-made lenses, all designed by our expert optical design engineers.

Geltech Asphere Performance Parameters

Lens CodeNumerical Aperture

Focal Length (mm)

Outer Diameter (mm)

352080 0.55 3.89 6.33

352125 0.49 10.00 11.00

352240 0.50 8.00 9.94

353515 0.40 3.52 3.000

353525 0.45 6.69 6.325

354057 0.20 13.00 6.325

354058 0.22 12.00 6.325

354059 0.19 14.00 6.325

354060 0.30 9.60 6.325

354061 0.24 11.00 6.325

354062 0.24 11.00 6.000

354064 0.24 11.00 6.000

354105 0.56 5.50 7.20

354115 0.54 6.75 9.20

354120 0.15 15.04 4.99

354130 0.21 6.00 3.00

354140 0.58 1.45 2.40

354171 0.30 6.20 4.700

354220 0.25 11.00 7.22

354260 0.16 15.29 6.50

354280 0.15 18.40 6.50

354306 0.27 9.85 6.350

354330 0.68 3.10 6.33

354340 0.64 4.03 6.33

354350 0.43 4.50 4.70

354430 0.15 5.00 2.00

354450 0.30 1.16 1.80

354453 0.55 4.60 6.00

354550 0.18 6.10 2.79

354560 0.18 13.86 6.33

354710 0.53 1.49 2.65

354850 0.13 22.00 6.33

354996 0.30 4.50 3.000

355022 0.47 4.47 5.42

355070 0.66 0.43 1.20

355110 0.40 6.24 7.20

Geltech Asphere Performance Parameters

Lens CodeNumerical Aperture

Focal Length (mm)

Outer Diameter (mm)

355150 0.51 2.00 3.00

355151 0.50 2.00 3.00

355160 0.55 2.73 4.00

355200 0.43 1.14 2.40

355201 0.43 1.14 2.40

355230 0.55 4.51 6.33

355330 0.77 3.10 6.33

355375 0.30 7.50 6.51

355390 0.55 2.75 4.50

355392 0.64 2.75 4.00

355397 0.30 11.00 7.20

355410 0.20 2.51 1.80

355440 0.52 2.76 4.70

355460 0.10 0.55 1.00

355485 0.10 0.55 1.40

355487 0.11 0.55 1.00

355536 0.60 0.60 1.24

355561 0.60 10.04 15.00

355615 0.20 2.51 2.05

355631 0.13 0.39 1.20

355660 0.60 2..97 4.00

355755 0.15 1.94 1.70

355840 0.47 0.75 1.40

355880 0.60 0.70 1.20

355915 0.50 0.80 1.30

355940 0.17 4.02 1.82

355945 0.32 2.51 2.10

355950 0.37 1.81 1.78

355960 0.62 1.00 1.82

355970 0.21 3.70 1.80

356300 0.66 2.54 4.000

356785 0.62 1.42 2.750

357610 0.62 4.00 6.325

357765 0.61 4.00 6.325

357775 0.60 4.02 6.325


Laser Diode Collimating Lenses

Lens Code NA CA (mm) EFL (mm) OD (mm) WD (mm)

355536 0.60 0.72 0.60 1.24 0.22

355880 0.60 0.84 0.70 1.20 0.33

355840 0.47 0.71 0.75 1.40 0.43

355960 0.62 1.20 1.00 1.82 0.24

356785 0.62 1.70 1.42 2.750 0.86

354140 0.58 1.60 1.45 2.40 0.81

354710 0.53 1.50 1.49 2.65 1.02

355950 0.37 1.35 1.81 1.78 1.09

355150 0.51 2.20 2.00 3.00 1.45

355151 0.50 2.00 2.00 3.00 1.03

355945 0.32 1.60 2.51 2.10 1.76

356300 0.66 3.30 2.54 4.000 1.55

355390 0.55 3.60 2.75 4.50 2.16

355392 0.64 3.60 2.75 4.00 1.50

355660 0.60 3.60 2.97 4.00 1.56

354330 0.68 5.00 3.10 6.33 1.76

355330 0.77 5.00 3.10 6.33 1.59

353515 0.40 2.70 3.52 3.000 2.33

357765 0.61 4.80 4.00 6.325 2.37

357775 0.60 4.80 4.02 6.325 2.41

354350 0.43 3.70 4.50 4.70 2.19

354996 0.30 2.70 4.50 3.000 3.46

355230 0.55 5.07 4.51 6.33 3.08

354453 0.55 4.80 4.60 6.00 2.71

354105 0.56 6.00 5.50 7.20 3.73

354171 0.30 3.70 6.20 4.700 4.10

355110 0.40 5.00 6.24 7.20 3.46

353525 0.45 5.75 6.69 6.325 4.87

354115 0.54 7.00 6.75 9.20 4.26

355375 0.30 4.54 7.50 6.51 5.82

352240 0.50 8.00 8.00 9.94 5.92

354060 0.27 5.20 9.60 6.325 8.11

354306 0.27 5.20 9.85 6.350 8.38

352125 0.49 10.00 10.00 11.00 7.81

355561 0.60 12.50 10.04 15.00 7.04

354061 0.24 5.20 11.00 6.325 9.56

354062 0.24 5.20 11.00 6.000 9.66

354064 0.24 5.20 11.00 6.000 9.35

354220 0.25 5.50 11.00 7.22 7.91

355397 0.30 6.68 11.00 7.20 10.01

354058 0.22 5.20 12.00 6.325 10.57

354057 0.20 5.20 13.00 6.325 11.58

354059 0.19 5.20 14.00 6.325 12.63


Design Wavelength 633nm Outer Diameter 6.33mm

Numerical Aperture 0.20 RMS WFE < 0.250

Focal Length 13.00mm Magnification Infinite

Clear Aperture 5.20mm Center Thickness 2.38mm

Working Distance 11.58mm Scratch/Dig 60-40

n=1.5170.250mm thick

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n=1.517

Laser Window0.250mm thick







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n=1.517







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Numerical Aperture 0.51 RMS WFE N/A





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Numerical Aperture 0.60 RMS WFE N/A










































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Fiber Collimating Lenses

Lens Code N A CA (mm) EFL (mm) OD (mm) WD (mm)

355410 0.20 1.01 2.51 1.80 1.84

355615 0.20 1.01 2.51 2.05 1.74

355970 0.21 1.56 3.70 1.80 3.03

355940 0.17 1.37 4.02 1.82 3.37

354430 0.15 1.50 5.00 2.00 4.37

354130 0.21 2.50 6.00 3.00 4.90

354550 0.18 2.20 6.10 2.79 4.87

354560 0.18 5.10 13.86 6.33 12.11

354120 0.15 4.50 15.04 4.99 13.19

354260 0.16 5.00 15.29 6.50 13.98

354280 0.15 5.50 18.40 6.50 17.11

354850 0.13 5.50 22.00 6.33 20.41

355970 0.21 1.56 3.70 1.80 3.03

















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n=1.517



Fiber Collimating Lenses































n=1.517


Laser Tool Lenses

Lens Code NA CA (mm) EFL (mm) OD (mm) WD (mm) Color356785 0.62 1.70 1.42 2.750 0.86 Blue356300 0.66 3.30 2.54 4.000 1.55 Blue353515 0.40 2.70 3.52 3.000 2.33 Green357765 0.61 4.80 4.00 6.325 2.37 Blue357775 0.60 4.80 4.02 6.325 2.41 Blue354996 0.30 2.70 4.50 3.000 3.46 Red354171 0.30 3.70 6.20 4.700 4.10 Red353525 0.45 5.75 6.69 6.325 4.87 Green354060 0.27 5.20 9.60 6.325 8.11 Red354306 0.27 5.20 9.85 6.350 8.38 Red354061 0.24 5.20 11.00 6.325 9.55 Red354062 0.24 5.20 11.00 6.000 9.66 Red354064 0.24 5.20 11.00 6.000 9.35 Red354058 0.22 5.20 12.00 6.325 10.57 Red354057 0.20 5.20 13.00 6.325 11.58 Red354059 0.19 5.20 14.00 6.325 12.63 Red







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n=1.517







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Laser Tool Lenses







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Laser to Fiber Coupling Lenses

Lens Code NA (object) NA (image) CA (mm) EFL (mm) OD (mm) WD (mm)355070 0.06 0.66 0.62 0.43 1.20 0.27355200 0.43 0.12 1.23 1.14 2.40 1.13355201 0.43 0.12 1.23 1.14 2.40 1.13355440 0.26 0.52 4.12 2.76 4.70 2.71355460 0.50 0.10 0.40 0.55 1.00 2.95355485 0.50 0.10 0.35 0.55 1.40 3.03355487 0.50 0.11 0.35 0.55 1.50 2.94355631 0.55 0.13 0.37 0.39 1.20 1.90355915 0.12 0.50 1.00 0.80 1.30 0.67


Numerical Aperture 0.06/0.66 RMS WFE < 0.070

Focal Length 0.43mm Magnification 11.00



















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Data Storage Objective Lenses

Lens Code

Numerical Aperture

Clear Aperture

(mm)

Focal Length (mm)

Outer Diameter

(mm)

Working Distance

(mm)355160 0.55 3.00 2.73 4.00 2.37352080 0.55 4.29 3.89 6.33 2.71357610 0.62 4.80 4.00 6.325 2.69354340 0.64 5.10 4.03 6.33 2.68355022 0.47 4.20 4.47 5.42 3.08






Polycarbonate Window1.2mm thick




























Fiber to Fiber Coupling Lenses

Lens Code NA (object) NA (image)

Clear Aperture

(mm)

Focal Length (mm)

Outer Diameter

(mm)

Working Distance

(mm)354450 0.30 0.30 1.14 1.16 1.80 1.67355755 0.15 0.15 1.10 1.94 1.70 3.57
























Mounted Aspheric LensesM O L D E D A S P H E R I C L E N S E S M O U N T E D F O R E A S Y A S S E M B LY

• Cost-effective solution for mounting Geltech aspheres

• Easy to handle assembly

• Durable stainless steel housing

• Threaded extension for easy mounting

Ordering Information

Part Number* Holder Type EFL (mm) NA352080Y-00-MT MT9 3.89 0.55352125Y-00-MT MT14 10.00 0.49352240Y-00-MT MT12 8.00 0.50353515Y-00-MT MT6B 3.52 0.40353525Y-00-MT MT9 6.69 0.45354057Y-00-MT MT9 13.00 0.20354058Y-00-MT MT9 12.00 0.22354059Y-00-MT MT9 14.00 0.19354060Y-00-MT MT9 9.60 0.27354061Y-00-MT MT9 11.00 0.24354062Y-00-MT MT9 11.00 0.24354064Y-00-MT MT9 11.00 0.24354105Y-00-MT MT9 5.50 0.56354115Y-00-MT MT12 6.75 0.54354140Y-00-MT MT6A 1.45 0.58354220Y-00-MT MT9 11.00 0.25354260Y-00-MT MT9 15.29 0.16354280Y-00-MT MT9 18.40 0.15354306Y-00-MT MT9 9.85 0.27354340Y-00-MT MT9 4.03 0.64354350Y-00-MT MT8 4.50 0.43354430Y-00-MT MT6B 5.00 0.15354453Y-00-MT MT9 4.60 0.55354550Y-00-MT MT6B 6.10 0.18354560Y-00-MT MT9 13.86 0.18354710Y-00-MT MT6B 1.49 0.53354850Y-00-MT MT9 22.00 0.13354996Y-00-MT MT6B 4.50 0.30355022Y-00-MT MT8 4.47 0.47355110Y-00-MT MT9 6.24 0.40355150Y-00-MT MT6B 2.00 0.51355151Y-00-MT MT6B 2.00 0.50355160Y-00-MT MT8 2.73 0.55355200Y-00-MT MT6B 1.14 0.43355230Y-00-MT MT9 4.51 0.55355330Y-00-MT MT9 3.10 0.77355375Y-00-MT MT9 7.50 0.30355390Y-00-MT MT8 2.75 0.68355392Y-00-MT MT8 2.75 0.64355397Y-00-MT MT9 11.00 0.30355440Y-00-MT MT8 2.76 0.52355660Y-00-MT MT8 2.97 0.60356300Y-00-MT MT8 2.54 0.66356785Y-00-MT MT6B 1.42 0.62357610Y-00-MT MT9 4.00 0.62357765Y-00-MT MT9 4.00 0.61357775Y-00-MT MT9 4.02 0.60357786Y-00-MT MT6B 1.41 0.50

* “Y” in the Part Number, is a placeholder for the coating type that the customer selects.

Mounted Aspheric LensesM O L D E D A S P H E R I C L E N S E S M O U N T E D F O R E A S Y A S S E M B LY

General Specifications and TolerancesHolder Material Stainless Steel 304Holder Outer Diameter ± 0.025mmHolder Inner Diameter ± 0.100mmHolder Length ± 0.100mmLength of Threaded Section ± 0.100mm

Lens Holder MT6A

1.90

Ø 6.24

3.55

D

M6 x 0.5-6gThread

Lens Holder MT12

3.20

Ø 12.2 2

6.50

D

M12 x 0.5-6gThread

Lens Holder MT9

3.20

Ø 9.24

6.50

D

M9 x 0.5-6gThread

Lens Holder MT6B

M6 x 0.5 - 6gThread

1.97

D

Ø 6.24

3.56

Lens Holder MT8

3.20

Ø 8.24

5.85

D

M8 x 0.5-6gThread

Lens Holder MT14

D

Ø 14.25

8.00M14 x 0.75-6g

Thread


Connectorized Aspheric Fiber Optic CollimatorsM O L D E D A S P H E R I C L E N S E S P R E - A L I G N E D F O R U S E W I T H F I B E R PAT C H C O R D S

• Optimal performance using Aspheric Lenses

• Pre-aligned for popular wavelengths

• Epoxy-free optical path

• Connectorized for quick assembly

• Rugged stainless steel housing

• Threaded exterior for easy mounting

LightPath’s connectorized collimators are available with FC/PC, FC/APC, or SMA fiber optic connectors. Each collimator is individually aligned and tested for the specified wavelength, and will offer excellent performance throughout the entire range of their AR coatings. Standard design assemblies are available for our most popular lens types, but any asphere in our catalog can be mounted into a custom assembly of your choice. Please contact LightPath sales for more information.

FC/PC Connectors FC/APC Connectors SMA Connectors* Typical beam diameter, measured at 1/e2, when using single mode fiber.

For all Connectorized Collimators, Pointing Accuracy = 0.5° and Waist Position = InfinityConnectorized Collimators can also be ordered as an unaligned kit for custom wavelength alignment

L4

L1

Thread Accepts FC/APC Connecto r

3.79º

L3

L1

Thread Accepts SMA Connecto r

L2

L1

Thread Accepts FC/PC Connecto r

Part Number λ (nm) Beam ø (mm)* AR Coating Thread ø ø (mm) L1 (mm) L2 (mm) L3 (mm) L4( mm)355110 - (FCPC/FCAPC/SMA) - 543 543 1.2 A M11 x 0.5-6g 11 3.25 17.35 21.41 17.93

355110 - (FCPC/FCAPC/SMA) - 633 633 1.2 B M11 x 0.5-6g 11 3.31 17.41 21.47 17.99


355110 - (FCPC/FCAPC/SMA) - 1064 1064 1.4 C M11 x 0.5-6g 11 3.42 17.52 21.58 18.10



355110 - (FCPC/FCAPC/SMA) - Y - KIT A, B, or C M11 x 0.5-6g 11

354220 - (FCPC/FCAPC/SMA) - 543 543 2.2 A M11 x 0.5-6g 11 7.75 21.95 25.91 22.43













355230 - (FCPC/FCAPC/SMA) - Y KIT A, B, or C M11 x 0.5-6g 11















357775 - (FCPC/FCAPC/SMA) - 405 405 0.7 UVA M11 x 0.5-6g 11 2.33 13.92 17.98 14.52

357775 - (FCPC/FCAPC/SMA) - Y - KIT UVA M11 x 0.5-6g 11

GRADIUM® Lenses


GRADIUM® Lenses OverviewA s p h e R I c p e R f O R M A n c e f O R h I G h p Ow e R L A s e R D e L I v e Ry

• Gradient index lenses for high power laser delivery• Aspheric performance• smaller focused spot size• single lens replacement for conventional doublets• high performance, cost effective• standard designs with diameters from 5 mm to 80 mm

standard spherical lenses suffer from spherical aberration, which artificially limits the focused spot.

Standard Spherical Lens

GRADIUM® Lens

In high performance optical systems, spherical aberration, chromatic aberration, and astigmatism induce sweat on the brows of optical designers. These aberrations can prevent optical systems from reaching their full potential.

Avoiding these factors in optical systems is of-ten difficult without using multiple lens elements. Lightpath’s unique line of GRADIUM® optics makes correcting these aberrations a practical reality.

GRADIUM® lenses are made from Lightpath’s proprietary axial gradient index glass. Its unique refractive qualities can be exploited to reduce spherical aberrations resulting in performance similar to single-term aspheres.

GRADIUM® lenses have been applied as simple singlets or doublets in complex multi-element systems. They have been very well received for use in high-power industrial laser systems; many of the world’s largest Nd:YAG and fiber laser manufactur-ers now incorporate GRADIUM® optics in their laser delivery systems.

General GRADIUM® Lens Specifications

Design wavelength 546 nm

Operating Temperature -20ºc to +200ºc

storage Temperature -40ºc to +300ºc

Outer Diameter (OD) Tolerance ± 0.250 mm

center Thickness (cT) Tolerance ± 0.100 mm

effective focal Length (efL) for GpX, GBX, and GMn series ± 1%

working Distance (wD) for GpX, GBX, and GMn series ± 1%

surface Quality 40/20 scratch/Dig

GRADIUM’s® unique refractive index profile bends rays while traveling through the lens resulting in a better focused, smaller spot.

Lens CodeOuter

Diameter(mm)

ClearAperture

(mm)F/#

EffectiveFocal

Length(mm)

CenterThickness

(mm)

BackFocal

Length(mm)

plan

o-c

onve

x

GpX-5-5 5.00 4.00 1.00 5.00 2.90 3.09

GPX5-10 5.00 4.50 2.20 10.00 3.00 8.23

GPX5-12.5 5.00 4.00 2.80 12.50 2.00 11.30

GPX6.3-6.19 6.30 5.67 1.00 6.19 2.60 4.65

GPX6.35-12.5 6.35 5.72 2.20 12.50 2.00 11.31

GPX10-10 10.00 9.00 1.10 10.00 3.00 8.00

GPX10-12.5 10.00 9.00 1.40 12.50 3.00 10.68

GPX10-18 10.00 9.00 2.00 18.00 2.50 16.52

GPX10-22 10.00 9.00 2.50 22.00 2.50 20.54

GPX10-25 10.00 9.00 2.80 25.00 2.50 23.55

GPX10-30 10.00 9.00 3.30 30.00 2.50 28.53

GPX10-40 10.00 9.00 4.50 40.00 2.00 38.84

GPX15-15 15.00 13.00 1.10 15.00 4.20 12.24

GPX15-25 15.00 13.50 1.80 24.14 3.00 22.42

GPX15-40 15.00 13.00 3.00 40.00 2.00 38.83

GpX20-50 20.00 18.00 2.80 50.00 3.00 48.24

GpX20-60 20.00 18.00 3.30 60.00 6.00 56.49

GpX25-40 25.00 22.50 1.80 40.08 6.00 36.55

GpX25-50 25.00 22.50 2.20 50.16 6.00 46.62

GpX25-60 25.00 22.00 2.60 60.00 6.00 56.46

GpX25-80 25.00 22.00 3.50 80.00 4.00 77.69

GPX25-125 25.00 22.50 5.60 125.00 6.00 121.50

GPX27-70 27.00 24.30 2.80 66.63 6.00 63.13

GPX27-100 27.00 24.30 4.00 96.46 6.00 93.02

GPX27.82-65 27.82 25.04 2.60 63.97 6.00 60.47

GpX30-60 30.00 27.00 2.20 60.00 6.00 56.44

GPX30-70 30.00 27.00 2.60 70.00 6.00 66.47

GpX30-80 30.00 27.00 3.00 80.00 4.00 77.68

GPX30-100 30.00 27.00 3.70 100.00 6.00 96.53

GpX40-80 40.00 36.00 2.20 80.00 6.00 76.47

GPX40-100 40.00 36.00 2.80 100.00 6.00 96.56

GPX40-125 40.00 36.00 3.50 125.00 6.00 121.52

GPX40-150 40.00 36.00 4.20 150.00 6.00 146.49

GPX50-100 50.00 45.00 2.20 100.00 8.00 94.90

GPX50-125 50.00 45.00 2.80 125.00 8.00 120.37

GPX50-150 50.00 45.00 3.30 150.00 8.00 145.25

GPX50-160 50.00 45.00 3.60 160.00 8.00 155.25

GpX50-200 50.00 45.00 4.50 200.00 8.00 195.27

GPX80-125 80.00 72.00 1.70 125.00 12.25 116.91

Bi-c

onve

x

GBX20-40 20.00 18.00 2.20 40.00 4.60 37.54

GBX25-40 25.00 22.00 1.80 40.00 4.60 37.51

GBX30-40 30.00 27.00 1.50 40.00 5.76 36.72

GBX50-80 50.00 45.00 1.80 80.00 8.00 75.46

GBX80-225 80.00 72.00 3.38 241.37 10.00 36.72

Me GMn30-50 30.00 27.00 1.90 50.00 5.00 46.82


Standard Coating Curves

Available Anti-Reflective Coatings

Available coatings* wavelength Reflectivity per Surface %

Broa

d Ba

nd -BB1 400-700 nm < 0.50 Average

-BB3 1000-1600 nm < 0.50 Average

-BB4 1500-2500 nm < 0.50 Average

Dua

l Ban

d

-DB1 633/1064 nm < 0.25 Maximum

-DB2 532/1064 nm < 0.25 Maximum

-DB4 530/670 nm < 0.25 Maximum

-DB5 808/940 nm < 0.25 Maximum

-DB6 1064/1550 nm < 0.25 Maximum

vc

-VC1 488 nm < 0.25 Maximum

-vc2 532 nm < 0.25 Maximum







-VC10 1550 nm < 0.25 Maximum

-VC11 2000 nm < 0.25 Maximum

Standard Anti-Reflective Coatings

coating code wavelength Reflectivity per Surface %

Broa

dBa

nd -BB2 650-1000 nm < 0.5 Average

Dua

lBa

nd -DB3 1310/1550 nm < 0.25 Maximum

vc -vc8 1064 nm < 0.25 Maximum

Plano-Convex (GPX)

EFL

BFL

CT

ODCA

Bi-Convex (GBX)

EFL

BFL

CT

ODCA

Meniscus (GMN)

EFL

BFL

ODCA

CT

GRADIUM® lenses take advantage of advances in the manufacturing of axial gradient glass. Large diameter blanks are fabricated with index changes (Δn) of up to 0.15, about 100 times that available from radial GRIN (GRadient INdex) technology. The large range in Δn available provides a substantial ability to correct aberra-tions, especially spherical.

The process used to produce the GRADIUM® glass turns a series of sf glass layers into a single piece of gradient material. Unlike radial GRIN lenses, this process provides large diameter optical blanks with controlled index and dispersion profiles.

1.00.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 1.3 1.4 1.5 1.6 1.7

0.1

Fiber Delivery Systems


Fiber Delivery Systems from the Experts in Laser FusionT H E L I G H T PAT H F U S I O N A DVA N TAG E

LightPath’s Fusion Fiber Collimators™ utilize patented fiber fusion technology to enable the collimators to be used at very high power, and deliver unparalleled stability, in diverse environmental conditions. The fiber is laser-fused directly to a plano-plano silica rod (end-cap) or plano-convex silica lens, resulting in an index matched transition from fiber to lens without any glass to air interface to cause unwanted back-reflections. The result is a highly reliable optical system with superior performance and very low loss.• Increased fusion capabilities

→ Laser fusion of fiber diameters up to 400mm

→ Active alignment for improved signal and pointing accuracy

→ Splice-free laser fusion of end-caps or lenses directly to fiber laser

• Expanded fiber-related product offerings and services

→ Patch cords

→ Fiber end-cap FC termination

→ Beam expanders

→ Custom opto-mechanical assemblies

→ Custom micro lenses down to 700mm in diameter

• High power collimators

→ Available in wavelengths from 400 to 2000nm

→ Designs in single mode, multimode and PM fiber

→ 100W continuous power handling

• PM fiber expertise

→ Low crosstalk

→ Stress reduction and polarization preserving assemblies

→ State-of-the-art test equipment

Fiber Delivery Systems from the Experts in Laser Fusion

F U S I O N F I B E R C O L L I M ATO R S ™

For Beam Diameters <1mm• Patented Fiber Fusion technology

• Fiber laser-fused directly to lens

• Small form factor

• C-lens or aspheric profile

• Superior coupling efficiency

• 20W continuous power handling

C O N N E C TO R I Z E D A S P H E R I C F I B E R C O L L I M ATO R S

C U S TO M F I B E R T E R M I N AT I O N A N D A S S E M B L I E S

For Beam Diameters >1mm• Fiber laser-fused directly to end-cap optic

• Ideal for fiber laser applications

• Designed for single or multimode applications

up to 100W

• Beam diameters up to 12.5mm

• Uses high performance Gradium or molded

aspheric lenses

• Rugged stainless steel design

• Optimal performance using aspheric lenses

• Pre-aligned for popular wavelengths

• Epoxy-free optical path

• Rugged stainless steel components

• Threaded exterior for easy mounting

• Connectors include FC/PC, FC/APC, and SMA

• End-caps

• Flexible beam expanders

• Custom patch cords

• Complex multicomponent assemblies


Custom Options Available

• Metallic housings• Glass housings• Epoxy-free strain relief• Connectors available

→ FC/PC → FC/APC → SMA and others upon request

• Fiber end-cap connectors• Examples of available fibers

→ SMF-28 → Corning TB-II → Nufern PMS460HP → Nufern MM-GDF-25/250 → Fujikura SC-48-PS-U25A → Coractive MM-20/125

LightPath has strong capability to design and manufacture fully custom systems to the specifications of your choice. We have experience working with various fiber types, such as expanded core fibers, polarization maintaining fibers, and multi-mode fibers. Please contact LightPath to see how we can build a system to meet your specific requirements.

A P P L I C AT I O N S A N D C A PA B I L I T I E S

Fiber Delivery Systems from the Experts in Laser Fusion

Typical SpecificationsApplication Wavelength 1550, 1310, 1064, 980, 780,

633, 546, 532, 408nmReturn Loss <-55dBPointing Accuracy 1° maximumBeam Roundness >90%M2 ≤1.2Transmission ≥97%Power Handling 20Watts CWOperating Temperature -20°C to +60°CStorage Temperature -40°C to +85°C

Connectorized Aspheric Fiber Optic CollimatorsO u t s tA n d i n g p e r F O r m A n C e w i t h e A s e O F A s s e m b ly

•Optimal performance using aspheric lenses• pre-aligned for popular wavelengths• epoxy-free optical path•Connectorized for quick assembly•rugged stainless steel housing•threaded exterior for easy mounting

lightpath’s connectorized aspheric collimator assemblies combine the outstanding performance of glass molded aspheric lenses with the ease of assembly of a fiber connector interface. The assemblies have a threaded exterior which allows a quick connection to an optical bench or within an instrument.

LightPath’s connectorized collimators are available with FC/PC, FC/APC, or SMA fiber optic connectors. Each col-limator is individually aligned and tested for the specified wavelength, and will offer excellent performance throughout the entire range of their AR coatings. Standard design assemblies are available for our most popular lens types, but any asphere in our catalog can be mounted into a custom assembly of your choice. Contact [email protected] for more information.

note: For -Kit part numbers, y is equal to Ar coating requested

For all Connectorized Collimators, Pointing Accuracy = 0.5° and Waist Position = InfinityConnectorized Collimators can also be ordered as an unaligned kit for custom wavelength alignment

*Typical beam diameter, measures at 1/e 2, when using single mode fiber

part number l (nm) beam ø (mm)* Ar Coating thread ø ø (mm) l1 (mm) l2 (mm) l3 (mm) l4( mm)355110 - (FCPC/FCAPC/SMA) - 543 543 1.2 A M11 x 0.5-6g 11 3.25 17.35 21.41 17.93

355110 - (FCPC/FCAPC/SMA) - 633 633 1.2 b M11 x 0.5-6g 11 3.31 17.41 21.47 17.99





355110 - (FCPC/FCAPC/SMA) - Y - KIT A, b, or C M11 x 0.5-6g 11














355230 - (FCPC/FCAPC/SMA) - Y KIT A, b, or C M11 x 0.5-6g 11















357775 - (FCPC/FCAPC/SMA) - 405 405 0.7 uVA M11 x 0.5-6g 11 2.33 13.92 17.98 14.52

357775 - (FCPC/FCAPC/SMA) - Y - KIT uVA M11 x 0.5-6g 11


3551

1035

4220

3552

3035

2240

3542

60

O u t s tA n d i n g p e r F O r m A n C e w i t h e A s e O F A s s e m b ly

Connectorized Aspheric Fiber Optic Collimators

3577

75

FC/PC Connectors FC/APC Connectors SMA Connectors

355110 - FC/PC - l

L2

L1

M11 Thread Accepts FC/PC Connector

11.00

13.00

355110 - FC/APC - l

13.00L4

L1

11.00

M11 Thread Accepts FC/APC Connector

3.79º

355110 - SMA - l

13.00L3

11.00

L1

M11 Thread Accepts SMA Connector

354220 - FC/PC - l

L2

L1


354220 - FC/APC - l

L4

L1


3.79º

354220 - SMA - l

L3

L1


355230 - FC/PC - l

11.00

Accepts FC/PC ConnectorM11 Thread

9.60L2

L1

355230 - FC/APC - l

9.60L4

11.00

L1

Accepts FC/APC ConnectorM11 Thread

3.79º

355230 - SMA - l

9.60L3

11.00

L1

Accepts SMA ConnectorM11 Thread

352240 - FC/PC - l

12.70L2

12.00

L1


352240 - FC/APC - l

12.70L4

12.00

L1


3.79º

352240 - SMA - l

12.70L3

12.00

L1


354260 - FC/PC - l

11.00


20.20L2

L1

354260 - FC/APC - l

20.20L4

11.00

L1


3.79º

354260 - SMA - l

20.20L3

11.00

L1


357775 - FC/PC - 405 357775 - FC/APC - 405 357775 - SMA - 405

11.00

Accepts FC/PC ConnectorM11 Thread

9.60L2

L1

9.60L4

11.00

L1

Accepts FC/APC ConnectorM11 Thread

3.79º

9.60L3

11.00

L1


Infrared Optics


Infrared Optics from the Experts in Molded Glass OpticsL E A D E R S I N C H A L C O G E N I D E G L A S S M O L D I N G

Molded aspheric lenses have revolutionized the digital camera market by allowing large volumes of high performance aspheric optics to be produced at a low cost. This technology has been limited to visible and near-infrared wavelengths, due to the crystalline structure of most infrared optical materials. Advances in chalcogenide materials have enabled compression molding for mid- and long-wavelength infrared (MWIR & LWIR) optics in a process similar to visible molded lenses. LightPath’s Molded Infrared Optics technology enables the production of high performance, cost-effective infrared aspheric lenses that do not rely on traditional diamond turning or lengthy polishing methods.

Utilizing aspheric optics to reduce the number of lenses required for thermal imaging systems is a common practice. Traditional Germanium or Zinc Selenide aspheres are manufactured by diamond turning, which is a time-consuming and expensive process. Diamond turned lenses are made one at a time and the lenses suffer from variations in surface figure resulting in variations of performance from lens to lens. The infrared optics molding process allows lenses to be manufactured in high volume with a highly repeatable, consistent performance.

Diffractive features are typically added to infrared aspheres to allow for sophisticated beam shaping or achromatization over a range of wavelengths. With LightPath’s molding technologies, these features are molded directly into the surfaces of the lens.

LightPath is a pioneer in the development, design and manufacturing of infrared optics made from molded chalcogenide glass. Our high volume production experience brings expertise and knowledge to your project as quantities for infrared optics continue to grow.

• Enhanced thermal performance

• Reduced SWaP with lightweight optics

•Moldable solution for high volume production

Thermal Imaging Lenses Glass DataH I G H P E R F O R M A N C E O P T I C S F O R A VA R I E T Y O F A P P L I C AT I O N S

Ge28Sb12Se60 (BD-2) Uncoated Transmission Curve (5 mm thickness)

0%

20%

40%

60%

80%

100%

1 2 3 4 5 6 7 8 9 10 11 12 13 14

% T

rans

mis

sion

Wavelength (µm)

Refractive Indices and Absorption Coefficient

Index λ (µm) Absorption (cm-1)

2.6266 3 0.01

2.6210 4 0.01

2.6173 5 0.01

2.6142 6 0.01

2.6117 7 0.01

2.6088 8 0.01

2.6055 9 0.01

2.6023 10 0.01

2.5983 11 0.03

2.5942 12 0.13

2.5892 13 0.20

2.5843 14 0.20

Mechanical Properties

Density 4.67 g/cm³

Hardness 150 knoop

Young's Modulus 22.1 GPa

Thermal Properties

Tg 278 °C

CTE 14 x 10-6 / °C

dn/dT 91 x 10-6 / °C

Composition

Component Percentage

Germanium (Ge) 28%

Antimony (Sb) 12%

Selenium (Se) 60%

Equivalent Glasses

Manufacturer Glass

Amorphous Materials AMTIR-3

Schott/Vitron IG5

LightPath lenses that havea 390xxx prefix use the

Ge28Sb12Se60 (BD-2) IR glass.

• Chalcogenide glass helps reduce weight in optical systems

• Smaller focal shifts due to temperature variations

• Diffractive elements (DOE) for enhanced performance with respect to spectral weighting and temperature variations

• Better transmission at elevated temperatures than Germanium

• Molded chalcogenide lenses are a lower cost alternative to Germanium aspheric lenses

LightPath’s infrared moldable glass has several advantages over Germanium, which is traditionally used for aspheric infrared optics.

The dn/dT and CTE of the chalcogenide glass results in a smaller change in focal length as a function of temperature. Using molded infrared optics glass enables athermalization to occur using just a single lens or with a minimum of athermalization mechanics.

Germanium suffers from transmission loss as temperature increases, especially as the temperature passes 60°C. LightPath’s infrared optic aspheric lenses can be used in environments up to 130°C, providing a greater thermal operating range than Germanium.


Thermal Imaging Lenses Glass DataH I G H P E R F O R M A N C E O P T I C S F O R A VA R I E T Y O F A P P L I C AT I O N S

IR-4Typical Reflectance Curve (spec: 1.8 - 3µm) Typical Transmission Curve (spec: 1.8 - 3µm)

IR-3Typical Reflectance Curve (spec: 3 - 5µm) Typical Transmission Curve (spec: 3 - 5µm)

5.0

Wavelength (µm)

2.0 3.0 4.0 5.0 6.0

% R

efl e

ctan

ce

0.0

1.0

2.0

3.0

4.0

2.5 3.5 4.5 5.5


0.0

1.0

2.0

3.0

4.0

Wavelength (µm)

5.0

% R

efl e

ctan

ce

7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0

0

20

40

60

80

100

% T

rans

mitt

ance

7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0

% T

rans

mitt

ance

0

20

40

60

80

Wavelength (µm)

100

1.8 2.0 2.2 2.4 2.6 3.02.8 1.8 2.0 2.2 2.4 2.6 3.0

0.0

0.5

1.0

1.5

2.0

2.5

% R

efl e

ctan

ce

Wavelength (µm)

2.8

Wavelength (µm)

0

20

40

60

80

Wavelength (µm)

100

% T

rans

mitt

ance

2.0 3.0 4.0 5.0 6.02.5 3.5 4.5 5.5

Available CoatingsCoating Wavelength RAVG

IR-1 8-12 < 1.0% per side

IR-2 8-12< 3% DLC<1% HEAR

IR-3 3 - 5 < 1.0% per side

IR-4 1.8 - 3 <1.0% per side

Durability Specs IR1, IR3 and IR4 IR2

Test Description of Test

AbrasionModerate 50 rub cheesecloth for glasses

with Knoop hardness < 450 kg/mm2

Reference: ISO9211-4

Severe 200 rubs with eraser.Reference: MIL-C-48497A

Adhesion Adhesive Tape-slow removal. Reference: ISO9211-4

Reflectance Reflectance measured over wavelength. range measured on axis.

Transmission Average 90% 5mm thick witness sample, same glass type.Salt Fog N/A > 48 hours


Infrared Aspheric LensesH I G H P E R F O R M A N C E A S P H E R E S F O R L A S E R C O L L I M AT I O N I N T H E I N F R A R E D

• High numerical aperture for maximum collection

efficiency

• Compact, single lens design

• Diffraction limited performance

• RoHS Compliant

MWIR/LWIR collimating lenses have high numerical apertures. This allows for maximum light collection for MWIR and LWIR lasers, including quantum cascade lasers (QCL). The aspheric design enables a single lens to replace complex, multiple component optical systems and provide high quality infrared beams for sensing and analytical measurements.

Infrared collimating lenses can also be molded directly into metal housings, eliminating the need to use epoxy to assemble the lenses. Housing materials such as SS304L, SS316, AL6061, and Inconel 718 are available. Molding into metal housings simplifies the mounting process while providing a hermetic seal between the lens and the rest of the package.

Did you know...If you don’t see the lens you need in our catalog, we can custom build it. Our engineering team can manufacture at off-the-shelf lens prices that you won’t find elsewhere.

Laser Collimation LensesPart

NumberDesign

WavelengthNumerical Aperture

Clear Aperture

Effective Focal Length

OuterDiameter

WorkingDistance

CenterThickness

390036 2.5µm 0.56 5.0mm 4.0mm 6.5mm 3.05mm 2.50mm

390017 2.7µm 0.72 2.6mm 1.50mm 3.5mm 1.24mm 1.10mm

390021 3.5µm 0.18 4.0mm 11.00mm 5.0mm 9.8 mm 3.07mm

390028 4.1µm 0.56 7.6mm 5.95mm 8.0mm 5.0mm 2.50mm

390029 4.2mm 0.86 2.5mm 0.91mm 3.0mm 0.66mm 0.90mm

390093 7.8µm 0.71 5.0mm 3.0mm 6.50mm 2.35mm 2.62mm

390010 9.2µm 0.83 3.0mm 1.47mm 4.5mm 0.63mm 2.18mm

390037 9.5µm 0.85 4.0mm 1.87mm 5.5mm 0.72mm 3.00mm

390137* 9.5µm 0.85 4.0mm 1.87mm 6.3mm 0.72mm 3.00mm

*390137hasthesameopticaldesignasthe390037,andisinsertmoldedintoametalring.


Infrared Aspheric Lens AssembliesM O U N T E D L E N S A S S E M B L I E S

Mounted Lens Assemblies

390010MT 390017IRx-MT

390021MT 390028MT

Ø 8.03Ø 12.22

5.40

Ø 7.45

M12 x 0.5-6g Thread

390029MT 390036MT

390037MT 390093MT

Mounted Lens Assemblies

General Specifications and TolerancesHolder Material Stainless Steel 304Holder Outer Diameter 0.025 mmHolder Inner Diameter 0.100 mmHolder Length 0.100 mmLength of Threaded Section 0.100 mm+-

+-

+-

+-

Ø 9.25 Ø 5.50 Ø 7.00Ø 7.50

6.25

M9 x 0.5-6 g Thread

5.33

Ø 9.240 Ø 4.74 Ø 6.10Ø 7.66

M9 x 0.5-6 g Thread

Ø 5.51 Ø 4.05

5.85

Ø 5.11 Ø 6.67

M8 x 0.5-6g Thread

Ø 6.24 Ø 3.55

3.55

M6 x 0.5-6 g Thread

0.20

2 M8x0.5-6c THREAD

(4 . 70) ( . 63)

M9x0.5-6g

))

M9x0.5-6g THREAD

(1.95)(2.75)

(3.25)(6.25)

(1.390)

(3.550)

(1.660)

(2.600)(6.240)

M6.0x0.5-6g-SPL THREAD

Thermal Imaging LensesL E N S A S S E M B LY TA B L E S

LightPath’s Infrared Lens Assemblies are specifically designed to be a lower cost replacement for standard diamond-turned infrared optical lens assemblies. These infrared lens assemblies integrate LightPath’s molded infrared lenses into a complete ready-to-use package.

• Molded lenses using high-quality chalcogenide glass

• Provides wavelength range of 8 µm - 14 µm• Passive athermalization for -40°C to +85°C• High-volume, cost effective manufacturing

• Designed for a variety of uncooled IR sensorsDid you know...If you don’t see the lens you need in our catalog, we can custom build it. Our engineering team can manufacture at off-the-shelf lens prices that you won’t find elsewhere.

* Material athermalization relies on the natural properties of chalcogenide glass. Lenses with passive athermalization have a compensator that adjusts the position of the lens.

Thermal Imaging Lens Specifications

Part Number

Focal Length f/#

Diagonal Image Size

OptimumDetector Sizes

Focus Range

Optical Back Focal Distance (Last Optical Surface to Detector)

Mechanical Working Distance

Mount Athermal* Operating Temp

Primary Market

7100108 10.65mm 1.0 10.0mm 320x240-25 µm 0.5m to Infinity

8.80mm with1.0mm

Ge Window8.53mm M20x1.0-6g Material

-20°C to +85°C

General Thermal Imaging

7100109 19.0mm 1.1 10.0mm 320x240-25µm 0.5m to Infinity

10.40mm with 0.67mm

Si Window10.44mm M25x0.5-6g Passive

-40°C to +85°C

General Thermal Imaging, Auto-motive

Standard

7100113 14.9mm 1.3 15.2mm 320x240-38µm640x512-17µm

0.5m to Infinity

12.40mm with 0.67mm

Si Window8.03mm M34x0.5-6g Passive -40°C to

+85°C

GeneralThermalImaging

7100122 5.0mm 1.2 7.00mm

80x60-38µm160x120-25µm160x120-35µm120x120-38µm160x120-38µm320x240-17µm

0.2 m to Infinity

7.36 mm with 0.67mm Si Window

6.98mm M12x0.5-6g Material-40°C to +85°C

Low Cost Thermal Imaging

Fire-fighting, Security,

Handheld Thermo-graphs)

7100127 7.7mm 1.3 13.9mm 640x480-17µm320x240-17µm

0.5m to Infinity

9.80mm with 0.67mm

Si Window9.27mm M24x0.5-6g Material -40°C to

+85°C

WFOVThermal Imaging

(Security, Handheld Thermo-graphs)

7100141 16.74mm 1.2 13.9mm 640x512-17µm 1.0m toInfinity

9.80 mm with 0.67 mm Si Window

3.50mm M19x0.5-6g Passive -40°C to +80°C

General Thermal Imaging

7100143 10.15mm 1.3 6.8mm 320x240-17µm 0.5m to Infinity

9.80mm with 0.67mm

Si Window3.32mm M19x0.5-6g Material -20°C to

+50°C


7100157 8.6mm 1.0 10mm 320x240-25µm0.5m to Infinity

8.45mm with 1.0mm Si Window

3.23mm M19x0.5-6g Material-20°C to +50°C


7100160 8.6mm 1.0 10mm 320x240-25µm 0.5m to Inifinity

8.45mm with 1.0mm Si Window

3.23mm M24x0.5g Material -20°C to +50°C



Infrared systems have grown rapidly in recent years in a broad spectrum of applications including:

•Thermal imaging and thermography

•Gas sensing and spectroscopy

•Security and surveillance

•Automotive vision enhancement

•Manufacturing process control and inspection

•Target tracking and identification

These applications demand infrared systems that utilize only the highest quality and most precise optics. LightPath Technologies is taking the same revolutionary technology that made us a global leader in molded glass aspheres and applying it to infrared applications. The unwavering dedication of LightPath’s experienced designers and engineers results in high quality and customer satisfaction.

Custom Moldable Infrared Lenses

Wavelength of Application microns

Numerical Aperture or f/# of laser

Clear Aperture mm

Effective Focal Length mm

Working Distance mm

Mechanical Restraints

LightPath is also pleased to offer you the ability to custom design a lens to any specification that you choose. Our in-house engineering and manufacturing teams provide the unique ability to work with you to design and produce the lenses that you need. Contact us today for a quote on your custom design.

A P P L I C AT I O N S A N D C A PA B I L I T I E S

Infrared Lenses

Optical Solutions for Telecommunications


Oasis™Optical Isolation ModuleI N T E G R AT E D C O U P L I N G O P T I C S A N D I S O L ATO R

F O R TO S A L A S E R PA C K A G E S

provide a compact solution to multiple element laser-to-fi ber coupling systems by replacing the typical collimating lens / isolator / focusing lens combination with a high-quality, fi nite conjugate glass aspheric lens and integrated isolator. Built as a monolithic design, Oasis offers diffraction-limited optical performance along with outstanding isolation. The design is ideal for small form factor laser diodes in telecommunication transceivers.

The typical surface mount Oasis contains a high NA fi nite conjugate lens that couples a laser directly into a single mode fi ber.

• Replace multiple components with a single lens

• Achieve diffraction-limited performance with precise isolation

• RoHS-compliant, ultra high-quality construction

Oasis™ Optical Isolation Modules (OIM) are unique components for laser-to-fi ber coupling in optical transceivers. Oasis OIMs

Oasis Optical Isolation Module

Lens Parameter Sample Value

Design Wavelength 1550 nmNumerical Aperture (NA) 0.66/0.06Clear Aperture (CA) 0.62 mmEffective Focal Length (EFL) 0.43 mmMagnifi cation 4.02RMS WFE Diffraction LimitedWorking Distance (WD) 0.297 mm/5.00 mmDistance Lens to Laser 0.27 mm


TRUSTED PERFORMANCE FOR THE MOST DEMANDING TELECOM SYSTEMS

Demanding and bandwidth-hungry

optical networks are pushing modern

telecommunications components

further and further along the price-

to-performance curve. To put it simply,

the modern network demands the

highest quality optics and the best

price. With over 20 years of experience

designing and delivering high-quality

optics, LightPath Technologies is an ideal

partner for your telecommunications

application. From concept through

prototyping, volume production and

global distribution, LightPath has the

optical knowledge and manufacturing

expertise to be there with you every step

of the way.

Save money, simplify your design and

manufacturing and grow with

a trusted partner.


1.200

1.1±.05 .375

TO BOTTOMOF MAGNET

(.900)

.950 .025.000CL-

(.850)

.050

1.150±.040

6°±1°

H I G H - P E R F O R M A N C E O P T I C S F O R A VA R I E T Y O F

A P P L I C AT I O N S

• Benefi t from the quality and performance of all-glass aspheres


• Customize to fi t your application or choose from library of over 50 standard aspheric designs for easy integration

• Easily manufactured into custom geometries and holders


LightPath Technologies has developed a comprehensive portfolio of industry leading price to performance lenses for telecom applications using a high index, RoHS-compliant glass (D-ZLAF52LA).

LightPath’s unique molding process allows us to custom manufacture a lens based on your requirements. We can provide lenses in a number of different form factors from a simple aspheric lens, to a wafer-based lens and even a lens molded into a metal housing. • Simple Lenses • Wafer Lenses

L A S E R TO F I B E R C O U P L I N G L E N S E S

F I B E R C O L L I M AT I N G L E N S E S

L A S E R D I O D E C O L L I M ATO R S

FIBER FIBER

��

� �

��

�

�

�

F I B E R TO F I B E R C O U P L I N G L E N S E S

• Molded in Place o Simple Cylindrical Holder o Square Holders o T Holders o Custom Holders

Did you know...that aspheric optics from LightPath can actually improve system performance and lower overall cost?

Molded Aspheric Lenses

C H O O S E F R O M A VA R I E T Y O F F O R M FA C TO R S

A N D C U S TO M D E S I G N S

Form Factor Designs

Aspheric CouplingConfi gurations


H I G H - P E R F O R M A N C E O P T I C S F O R A VA R I E T Y O F A P P L I C AT I O N S

• Benefi t from the quality and performance of all-glass aspheres


• Customize for your system or choose from over 20 telecommunications aspheres for easy integration


Glass Aspheres for Telecommunications

Telecommunications Collimating Aspheres

Lens Code Numerical Aperture

ClearAperture

(mm)

Focal Length(mm)

OuterDiameter

(mm)

Working Distance

(mm)

355112 0.60 0.72 0.60 1.2 0.34355410 0.20 1.01 2.51 1.79 1.84355536 0.60 0.72 0.60 1.24 0.22355615 0.20 1.01 2.51 2.05 1.73355660 0.60 3.60 2.97 4.00 1.56355840 0.47 0.71 0.75 3.00 0.43355880 0.60 0.84 0.70 1.20 0.33355940 0.17 1.37 4.02 1.82 3.37355945 0.32 1.60 2.51 2.10 1.76355950 0.37 1.35 1.81 3.00 1.09355960 0.62 1.20 1.00 1.82 0.24355970 0.21 1.56 3.70 1.80 3.03

Telecommunications Finite Conjugate Aspheres

Lens Code Object NA

Image NA

Object Clear

Aperture(mm)

Image Clear

Aperture(mm)

Focal Length(mm)

OuterDiameter

(mm)

Magnifi -cation

Object Working Distance

(mm)

Image Working Distance

(mm)354450 0.30 0.30 1.14 1.14 1.16 1.80 1.00 1.67 1.67355070 0.06 0.66 0.62 0.47 0.43 1.2 x 0.95 11.00 5.00 0.27355200. 0.43 0.12 1.10 1.24 1.14 2.40 3.64 4.81 1.13355440 0.52 0.26 4.12 3.76 2.76 4.70 2.00 2.70 7.09

355485 0.50 0.10 0.35 0.66 0.55 1.0 x 1.0 5.00 0.30 3.03

355487 0.50 0.11 0.35 0.68 0.55 1.0 x 1.0 4.55 0.28 2.94355631 0.55 0.13 0.37 0.53 0.39 1.2 x 1.2 4.23 0.28 1.90355915. 0.12 0.50 1.00 0.77 0.80 1.30 4.16 3.93 0.67

LightPath Technologies, Inc. ۰ 2603 Challenger Tech Court - Suite 100 ۰ Orlando, Florida 32826 ۰ 1-800-GRADIUM ۰ www.lightpath.com ۰ [email protected]

Green Laser Collimating Lenses

Enhanced to provide high transmission

and improved performance

Optimized for OSRAM© Green Diode

Lasers

Aspheric Molded Glass Lens

Diffraction Limited Performance

Compact, Single Lens Design

LightPath’s new 353515 and 353525 molded glass aspheric lenses are optimized to provide high transmission and

improved performance for green diode lasers. Their compact size and diffraction limited performance make them an ideal

choice for use in industrial, biomedical, and projection applications.


• Doublet and triplet performance with a single lens

• Reduces system cost through simple, compact design

• Molded lenses for greater performance repeatability

• Designed for high volume production

Laser tools are a common method for generating guidelines and measuring distances or surface profiles. These tools include laser levels, laser pointers, line projectors, laser scanners, and laser trackers. LightPath’s aspheric lenses are designed for use in today’s high performance laser tools and measurement systems.

Aspheric lenses provide a single lens solution to laser projection. Time consuming and expensive mounting and alignment of doublets and triplets can be replaced with a simple single lens mount. Aspheric lenses also have higher transmission than multi-lens systems due to less optical material and allow more compact packaging to be produced.

Standard Coatings

Lens Series Coating λ Range (nm) Reflectivity

354xxx MLBB-A 350 - 700 Ravg 0.50%

354xxx MLBB-B 600 - 1050 Rmax< 1.00%

354xxx MLBB-C 1050 - 1600 Rmax< 1.00%

356xxx, 357xxx UVA 350 - 500 Rmax< 1.00%

<

Lens Code NA CA (mm) EFL (mm) OD (mm) WD (mm) Color356785 0.62 1.70 1.42 2.750 0.86 Blue356300 0.66 3.30 2.54 4.000 1.55 Blue353515 0.40 2.70 3.52 3.000 2.33 Green357765 0.61 4.80 4.00 6.325 2.37 Blue357775 0.60 4.80 4.02 6.325 2.41 Blue354996 0.30 2.70 4.50 3.000 3.46 Red354171 0.30 3.70 6.20 4.700 4.10 Red353525 0.45 5.75 6.69 6.325 4.87 Green354060 0.27 5.20 9.60 6.325 8.11 Red354306 0.27 5.20 9.85 6.350 8.38 Red354061 0.24 5.20 11.00 6.325 9.55 Red354062 0.24 5.20 11.00 6.000 9.66 Red354064 0.24 5.20 11.00 6.000 9.35 Red354058 0.22 5.20 12.00 6.325 10.57 Red354057 0.20 5.20 13.00 6.325 11.58 Red354059 0.19 5.20 14.00 6.325 12.63 Red

2603 Challenger Tech Ct. Suite 100, Orlando, FL 32826 | 1-800-472-3486 | www.lightpath.com

Glass Aspheres for Laser Tools

Contact LightPath to take advantage of the power of Aspheric Optics for a simpler optical system.

Blue Laser Collimating Lenses

Lens Code Design Wavelength Glass

Numerical Aperture

Focal Length(mm)

Outer Diameter

(mm)

Clear Aperture

(mm)

Working Distance

(mm)

356300 405nm L-LAL12 0.66 2.54 4.00 3.30 1.55

357775 405nm D-LaK6 0.60 4.02 6.325 4.80 2.41

357610 410nm D-Lak6 0.62 4.00 6.325 4.80 2.69

357786 488nm D-Lak6 0.50 1.41 2.00 1.42 1.20

356785 488nm L-LAL12 0.62 1.42 2.75 1.70 0.86

357765 488nm D-LaK6 0.61 4.00 6.325 4.80 2.37

All Blue Laser Lenses are available with LightPath’s standard MLBB-UVA anti-reflection coating for 350nm to 500nm.

2603 Challenger Tech Ct. Suite 100, Orlando, FL 32826 | 1-800-472-3486 | www.lightpath.com

Blue Laser Collimating Lenses

LightPath’s Blue Laser collimating lenses are designed to simplify the design of laser systems for biomedical instrumentation such as cytometers and fluorescence detection and high volume data storage applications. These lenses are optimized, designed and manufactured to meet extremely stringent optical standards for these high performance applications.

Achieving good beam quality is particularly difficult for shorter wavelength lasers. LightPath’s new molded glass aspheric lenses are designed for the specific beam divergences, peak wavelength and window material of commercial blue diode lasers, enabling blue laser applications to achieve excellent beam quality and performance.

The L-LAL12 and D-LaK6 glasses have been selected for their outstanding UV & Blue transmission properties and their ability to be molded using LightPath’s existing molding technology. These glasses are fully RoHS compliant, in accordance with the new European restrictions on hazardous substances.

All lenses are available as single lenses or as mounted lenses in LightPath’s MT lens holders.

• Ideal for biomedical instrumentation and data storage systems

• Designs optimized for 405nm & 488nm laser diodes

• Diffraction limited molded aspheric glass lenses

• Industry leading price to performance value


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Optical Technologies

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WHAT CAN WE DO FOR YOU?Please contact us for further information

Germany

AMS Technologies AG(Headquarters) Fraunhoferstr. 22 82152 Martinsried, Germany

Phone +49 (0)89 895 77 0 Fax +49 (0)89 895 77 [email protected]

Italy

AMS Technologies S.r.l. Via San Bernardino, 49 20025 Legnano (MI), Italy

Phone +39 0331 596 693 Fax +39 0331 590 [email protected]

United Kingdom

AMS Technologies Ltd. Unit 11, St Johns Business Park LutterworthLeicestershire LE17 4HB, United Kingdom

Phone +44 (0)1455 556360 Fax +44 (0)1455 552974 [email protected]

Spain

AMS Technologies S.L. C/Muntaner, 200 Atico, 4a 08036 Barcelona, Spain

Phone +34 (0) 93 380 84 20 Fax +34 (0) 93 380 84 [email protected]

France

AMS Technologies S.A.R.L. 1, avenue de l’Atlantique Courtaboeuf91976 Les Ulis, France

Phone +33 (0)1 64 86 46 00 Fax +33 (0)1 69 07 87 [email protected]

Nordic

AMS Technologies NordicAzpect Photonics ABAminogatan 3443153 Mölndal, Sweden

Phone +46 (0)8 55 44 24 80Fax +46 (0)8 55 44 24 [email protected]

ISO9001DIN EN ISO 9001TAW CertZert.Nr.: 29050313

aspheric lenses for optics and photonics …€¦ · · 2014-06-03ams technologies ag optotech...

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