optics: concept and alignment
DESCRIPTION
Optics: Concept and Alignment. R. Graue, D. Kampf Kayser-Threde. Optics Concept - Overview. Optical Layout unchanged compared to IIDR Optical analyses and documentation completed Alignment plan Straylight analyses Optical Performance analyses (Ray tracing, spot diagrams) - PowerPoint PPT PresentationTRANSCRIPT
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PACS FPU
PACS IHDR 12/13 Nov 2003
Optics: Concept and Alignment
R. Graue, D. KampfKayser-Threde
![Page 2: Optics: Concept and Alignment](https://reader034.vdocument.in/reader034/viewer/2022051517/568157c4550346895dc54f33/html5/thumbnails/2.jpg)
PACS FPU
PACS IHDR 12/13 Nov 2003
Optics Concept - Overview
• Optical Layout unchanged compared to IIDR• Optical analyses and documentation
completed– Alignment plan– Straylight analyses– Optical Performance analyses (Ray tracing, spot
diagrams)– Mirror fabrication data package
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment Tasks
• Optical axis of telescope to FPU (alignment cubes/mirrors)
• Top Optics with Calibration Sources and Chopper
• Slicer optics
• Spectrometer/Collimator optics with Grating Assembly
Dummy, Dichroic, FW1, Ge:Ga Detectors
• Bolometer optics with Dichroic, FW2
• Integration of bolometer assembly (CEA)
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment PlanLaser Battery (AKF) at Telescope secondary mirror
Laser battery
OB simulator
Top Optics
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment PlanTop Optics at OB with alignment cube and mirror
Top Optics side view
ChopperInternal aperture stop
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment PlanTop Optics without OB from rear
IntermediateFocal plane
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment PlanBolometer alignment
Laser diode setup Pinholes at focal plane for laser OR LED‘s
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment PlanBolometer alignment jig for filter wheel and focal planes
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment PlanSlicer alignment together with Top Optics
Focal Plane
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment PlanCollimator Alignment
Laser & LEDSource
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment procedure (first page only)
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PACS FPU
PACS IHDR 12/13 Nov 2003
Autocollimation of Alignment Tool
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PACS FPU
PACS IHDR 12/13 Nov 2003
Top Optics Centered
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PACS FPU
PACS IHDR 12/13 Nov 2003
Final Alignment
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PACS FPU
PACS IHDR 12/13 Nov 2003
Laser test set up
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PACS FPU
PACS IHDR 12/13 Nov 2003
Top Optic Set Up
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PACS FPU
PACS IHDR 12/13 Nov 2003
Top Optics Alignment Set Up
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PACS FPU
PACS IHDR 12/13 Nov 2003
Top Optics Alignment Set Up
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment
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PACS FPU
PACS IHDR 12/13 Nov 2003
OGSE OverviewStatus• OGSE design and procurement nearly completed (Spectrometer: until end of
Nov 2003)Procured OGSE Items• Autocollimation telescope• Optical mounts• 4 x CCD array with optics• PC with framegrabber• 2 x alignment telescope• 10 x HeNe Laser and laser diodes• Set of pinholes with LED's (point sources)• Support structure for pinholes• Masks for mirrors (plexiglas with 3 point orientation to the front surface)• Scatter-plates• Lateral translation stages• 2 x Rotary table• Alignment mirrors during alignment (temporary)• Alignment mirrors for FPFPU alignment• Pentaprism
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PACS FPU
PACS IHDR 12/13 Nov 2003
Alignment Status
• Updated Alignment plan issued
• Alignment procedure engineering completed
• Top Optic Alignment under progress (until mid of Nov.2003)
– Chopper, Calibration Sources, Alignment Cubes aligned
• Top Optics Stability test under Helium temperatures in KT
Cryostat after Top Optic alignment
• Slicer, Collimator, Bolometer, Spectrometer alignment until X-
mas 2003