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# Oli Durney LBTI Optical Engineer Steward Observatory University of Arizona - PowerPoint PPT Presentation

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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Rev. 2.3

September 19, 2011

Oli Durney

LBTI Optical Engineer

Steward Observatory

University of Arizona

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

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

Dual Large Lenses

Mixed Large/Small Lenses

Dual Small Lenses

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

Dual Triplet Prisms

Single Triplet Prism with Filter

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

• 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.

• 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

• 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

• 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

• 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

• 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

• 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

• 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

Front View

ISO View

Side View

• 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

• 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

Left Shutter

Right Shutter

• 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