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LUXIM confidential. | 1
ETCC Open Forum, 5 May 2011
Introduction to Light Emitting PlasmaIntroduction to Light Emitting Plasma™™
www.LUXIM.comwww.LUXIM.com
LUXIM confidential. | 2
Light Emitting Plasma™
NEWOLD
LOW LUMENS
HIGH LUMENS
Incandescent
HID
LED
LEPEnergy SavingsLow MaintenanceLighting Controls
Energy SavingsLow MaintenanceLighting Controls
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Light Emitting Plasma Components
Driver
EmitterLuxim Corporation Proprietary and Confidential
LUXIM confidential. | 6
LEP Components
Quartz Bulb+
Rare Earth, Halide Fill Resonator (High
Purity Ceramic)
RF Power Amplifier
(LDMOS)
LUXIM confidential. | 7
How Plasma Technology WorksLEP light sources create a light-emitting plasma by coupling radio-frequency (RF) energy into an electrodeless quartz bulb. The RF energy is created and amplified by an RF circuit that is driven by a Solid-State Power Amplifier. The following three steps outline the process of light generation in all LIFI systems:
Step 1: An RF circuit is established by connecting an RF power amplifier to a ceramic resonant cavity known as the “puck”. In the center of the puck is a sealed quartz bulb that contains materials consistent with metal halide lamps.
Step 3: The ionized gas in turn heats up and evaporates the metal halide materials which form a bright plasma column within the bulb (blue to bright white light). This plasma column is centered within the quartz envelope and radiates light very efficiently. In the back side of the bulb, a highly reflective powder is used to reflect nearly all of this light in the forward direction.
Step 2: The puck, driven by the power amplifier, creates a standing wave confined within its walls. The electric field is strongest at the center of the bulb which ionizes the gasses inside the bulb (purple glow).
Bulb Resonant cavity or “puck”Input
Probe
Input Probe
Power Amplifyer
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Technology Benefit: Source size
= =LEP
220 High Brightness LEDs
LED for low illuminanceLEP for high illuminanceLED for low illuminanceLEP for high illuminance
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Technology BenefitsDirectional Source Electrode Free Spectrum
(1) Fixture Efficiency, (2) Light Distribution
(1) Reliability, (2) Rapid-Start and Re- Strike, (3) Dimming
(1) High Color Rendering, (2)
Enhanced Visibility
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Iso‐Illuminance Plot (Ft‐Cd)
12 m height, 40 m spacing, 16 m widthPole Location
521
521
Light Emitting PlasmaType2 Full Cutoff Short/Med STA‐41‐01280 Total System Watts
16m
521
521
High‐Pressure SodiumType2 Full Cutoff Med 470W HPS
hotspot
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Pole Spacing
• Meet standards with 1/3 less fixtures
• Reduced trenching and pole cost
• Reduced energy costs
16 Kilowatts/Mile$ 21,900/Mile Fixture$ 144,000/Mile Pole$ 9,400/Mile Power$ 175,300/Mile Total
9 Kilowatts/Mile$ 26,600/Mile Fixture$ 59,900/Mile Pole$ 5,200/Mile Power$ 91,700/Mile Total
HPS
LEP
Instant payback on new installations
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Fixture Comparison
19,000 Lumens
240 LEDs240 LEDs21,000
Lumens (B3-U1-G3)
21,000 Lumens
(B3-U1-G3)
16,000 Lumens
(B2-U1-G2)
16,000 Lumens
(B2-U1-G2)
287 Watts 287
Watts275
Watts
B2-U1-G1
LEP ($800) LED ($>1500)
Scales to high output lighting compared to LED
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Value Proposition: Outdoor
Assumes: 12 hrs per day use | $0.13/kWHr | $70 replacement labor HID/LEP | $153 replacement labor LED | $500 replacement cost LED
Base Case (400 HPS)
LEP STA 41 Full Power
LEP STA 41 Dimmed
LED Full Power
LED Dimmed
Operating CostsPower (watts) 460 280 193 300 150Annual Energy Cost $261 $156 $110 $170 $85 Annual Maintenance Cost $29 $15 $15 $57 $57 Annual Total Operating Costs $290 $171 $124 $227 $142 Annual Savings $119 $166 $63 $148 Capital Costs and PaybackFixture Cost $400 $800 $800 $1,700 $1,700 Installation Cost $153 $153 $153 $153 $153 Utility Rebate 0 $82 $119 $82 $119 Incremental Cost $318 $281 $1,217 $1,181 Payback n/a 2.7 1.7 19.3 8.0Environmental Impact & EmissionsCarbon Dixode Emissions (tons/yr) 1.57 0.94 0.66 1.03 0.51Carbon Dioxide Reductions (tons/yr) 0 0.63 0.91 0.55 1.06
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Existing Poles: Area/Site Lighting LEP STA-41(Type 3 Optic, 32’ pole)
Illuminance (Fc)Average= 2.02 Maximum= 8.1 Minimum= 1.0 Avg/Min= 2.02 Max/Min= 8.10
400W HPS(Type 3 Faceted Optics, 32’ pole)
Illuminance (Fc)Average= 3.2Maximum= 19.4Minimum= 1.0 Avg/Min= 3.21 Max/Min= 19.40
500’(152M)
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Light Quality
HPS LEPWattage 470 273Average Lux 36 27Minimum Lux 5 12Uniformity 7.2 2.3
Improved quality of light
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Dimming & Controls
100% Brightness @ all times1100 KW-hr per year3 yr payback
20% Brightness @ unoccupied750 KW-hr per year2 year payback
Using timer or occupancy sensor
Reduce power when unoccupied
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Iso‐Illuminance Plot (Ft‐Cd)
12 m height, 40 m spacing, 16 m widthPole Location
521
521
Light Emitting PlasmaType2 Full Cutoff Short/Med STA‐41‐01280 Total System Watts
16m
521
521
High‐Pressure SodiumType2 Full Cutoff Med 470W HPS
hotspot
LUXIM confidential. | 21
Existing HID Streetlights
LEP Streetlights
Same EnergyTriple Light Levels Improved ColorImproved Visibility
High CRI and white light
improve appearance
Application: Roadway Lighting
LUXIM confidential. | 25
Application: Temporary Lighting
Uses a Fuel Cell instead
of generator for quiet
operation
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Summary
• LEP is the low cost high efficiency light source for high illuminance applications– Saves 40% to 70% of energy
costs– 3x the life of standard Metal
Halide Luminaires– Controllability from 100% to
20% to off– Small form factor– Significantly more
economical for high illuminance fixtures
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