OFD 1 Oli Durney LBTI Optical Engineer Steward Observatory University of Arizona NIC Aperture, Pupil, and Filter Wheel Positions Rev. 2.3 September 19, 2011
Jan 04, 2016
OFD 1
Oli DurneyLBTI Optical EngineerSteward ObservatoryUniversity of Arizona
NIC Aperture, Pupil, and Filter Wheel Positions
Rev. 2.3September 19, 2011
OFD 2
Revision History PowerPoint File Name Version Date Modified Changes from Previous Version
NIC M
echanisms
NIC Wheel Positions v1.0.ppt 1.0 01-26-11 Original version, PhaseCam wheels (Pupil, FW1, FW2, ND)
NIC Wheel Positions v1.1.ppt 1.1 01-27-11 Include CAD drawing of ND wheel, added Prism & Optics wheels
NIC Wheel Positions v1.2.ppt 1.2 02-01-11 Flip Prism and Optics CAD orientations, colorize filters, change titles
NIC Wheel Positions v1.3.ppt 1.3 02-03-11 Update Notes, add Optics & Prism cell exploded views, add NAC wheel, re-order slides
NIC Wheel Positions v1.4.ppt 1.4 02-15-11 Add LMIRCam Filter wheels #1-4, add LMIRCam Aperture wheel
NIC Wheel Positions v1.5.ppt 1.5 02-21-11 Revise ‘drawn as’ comment, add red circle for optical axis and Note
NIC Wheel Positions v1.6.ppt 1.6 03-08-11 Change filters in LMIRCam FW#2
NIC Wheel Positions v1.7.ppt 1.7 04-20-11 Add Large & Small Beam Diverter, Image Dichroic, ID 3D view, Left & Right Shutter
NIC Wheel Positions v1.8.ppt 1.8 04-20-11 Add ‘controlled by’ comment, add NAC Source
NIC Wheel Positions v1.9.ppt 1.9 04-22-11 Add Shutter 3D views
NIC Wheel Positions v2.0.ppt 2.0 04-28-11 Reverse rotation direction and order of NAC wheel, add pinholes in Pos 3 & 6
NIC Wheel Positions v2.1.ppt 2.1 04-29-11 Reverse rotation direction and order of LMIRCam FW#2, Add Revision History
NIC Wheel Positions v2.2.ppt 2.2 05-03-11Add ‘Steps’ column to all slides, situate ‘Home’ in between Pos 5&6 on NAC slide, revise text on Image Dichroic slide, add red optical axis to all other slides, revise ‘Note’ accordingly
NIC Wheel Positions v2.3.ppt 2.3 09-19-11 Add 12-hole and 24-hole aperture masks in Pos 6&7 of LMIRCam FW#1, illustration shows installed orientation of hole patterns
OFD 3
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
Position Steps Description Dimensions
1 (Home) Open =25.4mm
2 OD=0.50, T=31.62% =25.4mm, t=1mm
3 OD=1.00, T=10.00% =25.4mm, t=1mm
4 OD=2.00, T=1.00% =25.4mm, t=1mm
5 OD=3.00, T=0.10% =25.4mm, t=1mm
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
1
2
34
5
CW
OFD 4
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
NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position
Position Steps Description Dimensions
1 (Home) Open Open
2 Dual Large Lenses =9.5mm, t=2.8mm
3 Open Open
4 Mixed Large/Small =9.5mm, t=2.8mm
Lenses =8.5mm, t=2.8mm
5 Open Open
6 Dual Small Lenses =8.5mm, t=2.8mm
43
1
5
2
6
CW
OFD 5
Optics Wheel – CellsDual Large Lenses Dual Small LensesMixed Large/Small Lenses
OFD 6
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
Position Steps Description Dimensions
1 (Home) Open Open
2 Dual Triplet Prisms 12x12mm
3 H Filter =25.4mm
4 Single Triplet Prism 12x12mm
with H Filter
5 K Filter =25.4mm
6 Single Triplet Prism 12x12mm
with K Filter
CW1 4
5
23
6
NOTE: Optical Axis (Entrance Port) is shown in red and is located at Position 1 when Wheel is in the Home position
OFD 7
Prism Wheel – CellsDual Triplet Prisms Single Triplet Prism with Filter
OFD 8
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
Position Steps Name Size
1 (Home) 0 Open 42.86 x 42.86mm
2 100000 ZnSe Lens and 45° =25.4mm
Fold Mirror
3 200000 5 mm Aperture =25.4mm
4 300000 Znse Lens =25.4mm
5 400000 3x3 Grid of Pinholes 36.46 x 36.46mm
=1mm, d=8.94mm
6 500000 50 m Pinhole =25.4mm
NOTE: Optical Axis (Entrance Port) is shown in red and is located at Position 1 when Wheel is in the Home position
1
653
4
2CCW
OFD 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
Position Steps AWG Size
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”
1
2
3
4
5
6
7
89
10
Move
(Home)
NOTE: Pos 6-10 are not currently working (05-03-11). However, the wires are installed.
1
2
3
4
5
6
7
89
10
Back View
OFD 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
1
1195
3 CCW
Position Steps Name Size
1 (Home) Open 25.4mm
2 Small Dual Aperture ~7.19mm
3 Large Dual Aperture ~7.49mm
4 Left Aperture ~8.16mm
5 Right Aperture ~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
72
4
6 8
10
12
NOTE: Optical Axis (Entrance Port) is shown in red and is located at Position 1 when Wheel is in the Home position
OFD 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
7
5311
9 CCW
Position Steps Name Size
1 (Home) Open 25.4mm
2 Ks (2.00-2.32 m) 25.4mm
3 H (1.50-1.81 m) 25.4mm
4 J (1.18-1.36 m ) 25.4mm
5 L-spec (2.81-4.00 m) 25.4mm
6 M-long (4.60-5.86 m) 25.4mm
7 Std ‘M’ (4.60-4.97 m) 25.4mm
8 L-long 2 (3.81-4.05 m) 25.4mm
9 L-long 1 (3.51-4.06 m) 25.4mm
10 Std ‘L’ (3.41-3.99 m) 25.4mm
11 L-short (3.10-3.51 m) 25.4mm
12 Blank 25.4mm
18
10
12 2
4
6
NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position
OFD 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
10
862
12 CCW
Position Steps Name Size
1 (Home) Open 25.4mm
2 H2O Ice 1 (2.96-3.12 m) 25.4mm
3 H2O Ice 2 (3.01-3.15 m) 25.4mm
4 PAH 1 (3.26-3.31 m) 25.4mm
5 PAH 2 (3.38-3.43 m) 25.4mm
6 Br- (4.02-4.09 m) 25.4mm
7 Br- off (3.97-4.04 m) 25.4mm
8 L-cont 1 (3.13-3.20 m) 25.4mm
9 L-cont 2 (3.39-3.54 m) 25.4mm
10 L-cont 3 (3.55-3.64 m) 25.4mm
11 L-cont 4 (3.68-3.88 m) 25.4mm
12 Blank 25.4mm
411
1
3 5
7
9
NOTE: Optical Axis (Entrance Port) is shown in red and is located at Position 1 when Wheel is in the Home position
OFD 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
10
1226
8 CW
Position Steps Name Size
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
49
7
5 3
1
11
NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position
OFD 14
4
3CW
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
Position Steps Name Size
1 (Home) Open 50.8x50.8mm
2 Open 50.8x50.8mm
3 Pinhole 1mm?
4 Blank 50.8x50.8mm
1
2
NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position
OFD 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
Position Steps Name Size
1 (Home) Open 72x57mm
2 Large Dichroic 74x58x7mm
1 2Position of 1 when 2 is centered along the optical axis
Move
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
OFD 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
Position Steps Name Size
1 (Home) Open 72x57mm
2 Large Dichroic 74x58x7mm 1 2
Move
NOTE: Optical Axis is shown in red and is located at Position 1 when Slide is in the Home position
OFD 17
Image Dichroic AssemblyFront View
Side View
ISO View
OFD 18
Right Shutter• Shutter located in front of Fixed Nulling Mirror
• Drawn as viewed from entrance Window
• Controlled by Motor Box #1, Drive #2
Position Steps Name Size
1 (Home) Vertical – half open 20mm
2 Closed 20mm
3 Horizontal – half open 20mm
4 Open 20mm
1 2
3 4NOTE: Optical Axis is shown in red
OFD 19
Left Shutter• Shutter located in front of Field Steering Mirror
• Drawn as viewed from entrance Window
• Controlled by Motor Box #1, Drive #3
Position Steps Name Size
1 (Home) Vertical – half open 20mm
2 Closed 20mm
3 Horizontal – half open 20mm
4 Open 20mm
1 2
3 4NOTE: Optical Axis is shown in red
OFD 20
Shutter AssembliesLeft Shutter Right Shutter
OFD 21
Additional Slides
OFD 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
Position Steps Name Size
1 Open 42x30mm
2 (Home) Small Mirror 52x32x9.53mm
3 Small Dichroic 54x38x7mm
2 3
Move
1
Move
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