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Oli Durney LBTI Optical Engineer Steward Observatory University of Arizona

NIC Aperture, Pupil, and Filter Wheel Positions Rev. 2.3 September 19, 2011. Oli Durney LBTI Optical Engineer Steward Observatory University of Arizona. Revision History. 4. 3. 5. 2. 1. ND Wheel - Assembly. Neutral Density filter set: P/N FX90-0100 from Janos Technology

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Oli Durney LBTI Optical Engineer Steward Observatory University of Arizona

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  1. NIC Aperture, Pupil, and Filter Wheel Positions Rev. 2.3 September 19, 2011 Oli Durney LBTI Optical Engineer Steward Observatory University of Arizona

  2. Revision History

  3. 4 3 5 2 1 ND Wheel - Assembly • Neutral Density filter set: P/N FX90-0100 from Janos Technology • Drawn as viewed with cover plate removed from Access Port side (side facing PICNIC Detector) • CW rotation of motor = CW rotation of wheel • Controlled by Motor Box #2, Drive #1 PositionStepsDescriptionDimensions 1 (Home) Open f=25.4mm 2 OD=0.50, T=31.62% f=25.4mm, t=1mm 3 OD=1.00, T=10.00% f=25.4mm, t=1mm 4 OD=2.00, T=1.00% f=25.4mm, t=1mm 5 OD=3.00, T=0.10% f=25.4mm, t=1mm CW NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position, Pos 1 will be replaced with an A/R coated ZnSe window

  4. 3 2 1 4 CW 6 5 Optics Wheel – Assembly • CaF2 re-imaging lenses from ISP Optics • Drawn as viewed with cover plate removed from flat side (side facing PICNIC Detector) • CW rotation of motor = CW rotation of wheel • Controlled by Motor Box #2, Drive #2 PositionStepsDescriptionDimensions 1 (Home) Open Open 2 Dual Large Lenses f=9.5mm, t=2.8mm 3 Open Open 4 Mixed Large/Small f=9.5mm, t=2.8mm Lenses f=8.5mm, t=2.8mm 5 Open Open 6 Dual Small Lenses f=8.5mm, t=2.8mm NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position

  5. Optics Wheel – Cells Dual Large Lenses Mixed Large/Small Lenses Dual Small Lenses

  6. 5 6 1 4 CW 2 3 Prism Wheel - Assembly • Neutral Density filter set: P/N FX90-0100 from Janos Technology • Drawn as viewed with cover plate removed from Baffle Tube side (side facing Field Lenses) • CW rotation of motor = CW rotation of wheel • Controlled by motor Box #2, Drive #3 PositionStepsDescriptionDimensions 1 (Home) Open Open 2 Dual Triplet Prisms 12x12mm 3 H Filter f=25.4mm 4 Single Triplet Prism 12x12mm with H Filter 5 K Filter f=25.4mm 6 Single Triplet Prism 12x12mm with K Filter NOTE: Optical Axis (Entrance Port) is shown in red and is located at Position 1 when Wheel is in the Home position

  7. Prism Wheel – Cells Dual Triplet Prisms Single Triplet Prism with Filter

  8. 4 3 5 CCW 6 2 1 NAC Aperture Wheel • ZnSe lenses and mirror from Edmund Optics • Drawn as viewed from cryostat Window side • CWW rotation of motor = CWW rotation of wheel • Controlled by Motor Box #2, Drive #4 PositionStepsNameSize 1 (Home) 0 Open 42.86 x 42.86mm 2 100000 ZnSe Lens and 45° f=25.4mm Fold Mirror 3 200000 5 mm Aperture f=25.4mm 4 300000 Znse Lens f=25.4mm 5 400000 3x3 Grid of Pinholes 36.46 x 36.46mm f=1mm, d=8.94mm 6 500000 50 mm Pinhole f=25.4mm NOTE: Optical Axis (Entrance Port) is shown in red and is located at Position 1 when Wheel is in the Home position

  9. NAC Source Slide • Wires installed on 03-07-11 • Drawn as viewed from cryostat Window side • CW rotation of motor = vertical translation of the slide ?? • Controlled by Motor Box #1, Drive #7 1 1 2 2 3 3 4 4 5 5 Move 6 6 7 7 PositionStepsAWGSize 1 30 0.0100” 2 40 0.0310” 3 40 0.0310” 4 48 0.0012” 5 48 0.0012” 6 30 0.0100” 7 40 0.0310” 8 40 0.0310” 9 48 0.0012” 10 48 0.0012” 8 8 9 9 10 10 Back View (Home) NOTE: Pos 6-10 are not currently working (05-03-11). However, the wires are installed.

  10. LMIRCam Filter Wheel #1 • Single Apertures installed on 01-21-11, Hole patterns installed on 09-16-11 • Drawn as viewed with cover plate removed from Baffle Tube side (side facing LMIRCam Dichroic) • CW rotation of motor = CCW rotation of wheel • Controlled by LMIRCam Motor Box, Drive #1 7 PositionStepsNameSize 1 (Home) Open 25.4mm 2 Small Dual Aperture f~7.19mm 3 Large Dual Aperture f~7.49mm 4 Left Aperture f~8.16mm 5 Right Aperture f~8.21mm 6 24-hole Pattern 25.4mm 7 12-hole Pattern 25.4mm 8 Open 25.4mm 9 Open 25.4mm 10 Open 25.4mm 11 Pinhole ~0.33mm 12 Blank 25.4mm 6 8 9 5 4 10 CCW 11 3 2 12 1 NOTE: Optical Axis (Entrance Port) is shown in red and is located at Position 1 when Wheel is in the Home position

  11. LMIRCam Filter Wheel #2 • All filter retainer rings adjusted on 01-19-11, H & J filters installed on 03-08-11 • Drawn as viewed with cover plate removed from flat side (side facing LMIRCam Baseplate) • CCW rotation of motor = CCW rotation of wheel • Controlled by LMIRCam Motor Box, Drive #2 1 PositionStepsNameSize 1 (Home) Open 25.4mm 2 Ks (2.00-2.32 mm) 25.4mm 3 H (1.50-1.81 mm) 25.4mm 4 J (1.18-1.36 mm ) 25.4mm 5 L-spec (2.81-4.00 mm) 25.4mm 6 M-long (4.60-5.86 mm) 25.4mm 7 Std ‘M’ (4.60-4.97 mm) 25.4mm 8 L-long 2 (3.81-4.05 mm) 25.4mm 9 L-long 1 (3.51-4.06 mm) 25.4mm 10 Std ‘L’ (3.41-3.99 mm) 25.4mm 11 L-short (3.10-3.51 mm) 25.4mm 12 Blank 25.4mm 2 12 3 11 4 10 CCW 5 9 8 6 7 NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position

  12. LMIRCam Filter Wheel #3 • New filter (Pos 10) installed on May 11, 2010 • Drawn as viewed with cover plate removed from Baffle Tube side (side facing Biconic #2) • CW rotation of motor = CCW rotation of wheel • Controlled by LMIRCam Motor Box, Drive #3 4 PositionStepsNameSize 1 (Home) Open 25.4mm 2 H2O Ice 1 (2.96-3.12 mm) 25.4mm 3 H2O Ice 2 (3.01-3.15 mm) 25.4mm 4 PAH 1 (3.26-3.31 mm) 25.4mm 5 PAH 2 (3.38-3.43 mm) 25.4mm 6 Br-a (4.02-4.09 mm) 25.4mm 7 Br-a off (3.97-4.04 mm) 25.4mm 8 L-cont 1 (3.13-3.20 mm) 25.4mm 9 L-cont 2 (3.39-3.54 mm) 25.4mm 10 L-cont 3 (3.55-3.64 mm) 25.4mm 11 L-cont 4 (3.68-3.88 mm) 25.4mm 12 Blank 25.4mm 3 5 6 2 1 7 CCW 8 12 11 9 10 NOTE: Optical Axis (Entrance Port) is shown in red and is located at Position 1 when Wheel is in the Home position

  13. LMIRCam Filter Wheel #4 • PK-50 Blocker not installed because of OD clearance concern (substrate delivered with 2 chips) • Drawn as viewed with cover plate removed from Baffle Tube side (side facing detector) • CW rotation of motor = CW rotation of wheel • Controlled by LMIRCam Motor Box, Drive #4 4 PositionStepsNameSize 1 (Home) Open 25.4mm 2 Blank 25.4mm 3 PK-50 Blocker 25.4mm 4 Pupil Imaging Lens (ZnSe) 12.7mm 5 Open 25.4mm 6 Open 25.4mm 7 Open 25.4mm 8 Open 25.4mm 9 Open 25.4mm 10 Open 25.4mm 11 Open 25.4mm 12 Open 25.4mm 5 3 2 6 1 7 CW 12 8 9 11 10 NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position

  14. LMIRCam Aperture Wheel • New filter (Pos 10) installed on May 11, 2010 • Drawn as viewed with cover plate removed from side opposite cryo-motor (side facing Biconic #2) • CW rotation of motor = CW rotation of wheel • Controlled by LMIRCam Motor Box, Drive #5 2 PositionStepsNameSize 1 (Home) Open 50.8x50.8mm 2 Open 50.8x50.8mm 3 Pinhole 1mm? 4 Blank 50.8x50.8mm 1 3 CW 4 NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position

  15. Large Beam Diverter Slide • Two (2) possible configurations for the Beam Diverter – Large (2-position) and Small (3-position) • Drawn as viewed from entrance Window • CW rotation of motor = right translation of the slide ?? • Controlled by Motor Box #1, Drive #6 Move Position of 1 when 2 is centered along the optical axis 1 2 PositionStepsNameSize 1 (Home) Open 72x57mm 2 Large Dichroic 74x58x7mm NOTE: Position 1 nominally houses the Large Mirror. It is currently removed to allow an open path to LMIRCam Optical Axis is shown in red and is located at Position 1 when Slide is in the Home position

  16. Image Dichroic Slide • Drawn as viewed from entrance Window • CW rotation of motor = right translation of the slide ?? • Controlled by Motor Box #1, Drive #1 Move PositionStepsNameSize 1 (Home) Open 72x57mm 2 Large Dichroic 74x58x7mm 1 2 NOTE: Optical Axis is shown in red and is located at Position 1 when Slide is in the Home position

  17. Image Dichroic Assembly Front View ISO View Side View

  18. Right Shutter • Shutter located in front of Fixed Nulling Mirror • Drawn as viewed from entrance Window • Controlled by Motor Box #1, Drive #2 PositionStepsNameSize 1 (Home) Vertical – half open 20mm 2 Closed 20mm 3 Horizontal – half open 20mm 4 Open 20mm 1 2 3 4 NOTE: Optical Axis is shown in red

  19. Left Shutter • Shutter located in front of Field Steering Mirror • Drawn as viewed from entrance Window • Controlled by Motor Box #1, Drive #3 PositionStepsNameSize 1 (Home) Vertical – half open 20mm 2 Closed 20mm 3 Horizontal – half open 20mm 4 Open 20mm 1 2 3 4 NOTE: Optical Axis is shown in red

  20. Shutter Assemblies Left Shutter Right Shutter

  21. Additional Slides

  22. Small Beam Diverter Slide • Two (2) possible configurations for the Beam Diverter – Large (2-position) and Small (3-position) • Drawn as viewed from entrance Window • Controlled by Motor Box #1, Drive #6 Move Move 1 2 3 PositionStepsNameSize 1 Open 42x30mm 2 (Home) Small Mirror 52x32x9.53mm 3 Small Dichroic 54x38x7mm NOTE: Position 1 is Open when slide is moved to Position 2. It is Small Mirror when slide is moved to Position 3 Optical Axis is shown in red and is located at Position 2 when Slide is in the Home position

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