AO System Design

  • Acquisition System Design

Link to Opto-Mechanical Mini-Design Review

Opto-Mechanical Design

Meeting Minutes

Documents

Organized in chronological order as the design develops

Keck Primary Mirror Projected on Deformable Mirrors

Drawings of current AO system

Links to Conceputal Design Phase Materials (AKA system design phase)

Designs originating in Conceptual Design Phase

  • Zemax file Cascaded relay, 2-tier carried over from conceptual design phase
  • Powerpoint slide Cascaded relay, 2-tier carried over from conceptual design phase

  • Zmax file Cascaded relay, 1-tier 140mm DM carried over from conceptual design phase
  • Powerpoint slide Cascaded relay, 1-tier 140mm DM carried over from conceptual design phase

Single Relay concepts

  • Zemax file Single relay design with 200mm DM (48 actuator, 5mm pitch)
  • Powerpoint slide Single relay design with 200mm DM (48 actuator, 5mm pitch)

  • Zemax file Single relay design with 168mm DM (48 actuators, 3.5mm pitch), separate tip/tilt
  • Powerpoint slide Single relay design with 168mm DM (48 actuators, 3.5mm pitch), separate tip/tilt

Cascaded Relay and Switchyard Concept that avoids the dichroics between relays

2-tier, 100 mm beam in 1st relay
  • Zemax file Cascaded-relay design, 2-tier, 100mm DM, avoiding dichroic changer.
  • Powerpoint slide Cascaded-relay design, 2-tier, 100mm DM, avoiding dichroic changer.

1-tier, 140 mm beam in 1st relay
  • Zemax file Cascaded-relay design, 1-tier, 140mm DM, avoiding dichroic changer.
  • Powerpoint slide 140mm DM cascaded relay with no dichroic changer.

Pickoff switchyard details (valid for either 1st relay option)
  • Powerpoint slide Pickoff switchyard design
  • White-board drawing of focal plane pick-offs switchyard concept, with LOWFS and 2nd relay of cascade sandwiched between the LOWFS. This is roughly to scale as drawn on the board (see the 12-inch ruler in the picture).
  • SolidWorks e-drawing of 2-tier layout and pickoff switchyard. (delete the enclosure to see the optics)

1-tier, 100mm beam in 1st relay Passes 120 arcsecond tip/tilt star field.
Version 1
  • Zemax file Cascaded relay design, 1-tier, 100mm DM, 120: field with no dichroic changer.
  • Powerpoint slide Cascaded relay design, 1-tier, 100mm DM, 120" field with no dichroic changer.

Version 2
Flipped the second relay around, per Chris' request. Added NGS WFS and assumed one science instrument, with ability to add more.

  • Zemax file Cascaded-relay design 1-tier, 100mm DM, no dichroic changer, proper orientation
  • Powerpoint slide Cascaded relay design, 1-tier, 100mm DM cascaded relay of 120" FOV, no dichroic changer, proper orientation

Version 3
Expanded the second relay field to 40 arcseconds, first relay still 120 arcseconds. Also cleaned up some cooridinate breaks and folds.
  • Zemax file Cascaded-relay design, 1-tier, 100mm DM, 2nd relay passes 40"

Version 4
Added acquisition camera pickoff for LOWFS and interferometer feed dichroic beamsplitter. Added FSM to NGS WFS feed.
  • Zemax file Cascaded relay design, 1-tier, 100mm woofer, 120" field, acq. camera and interferometer feed included
  • Powerpoint slide Cascaded relay design, 1-tier, 100mm woofer, 120" field, acq camera and interferometer feed included

Version 5
2nd relay NGS WFS field expanded to accomodate 40'x60' rectangular patrol field, centered on-axis. This required: 2nd relay OAPs increased in size by 30%, switchyard mirror moved back toward OAP4, incident angle of switchyard mirror increased to 20 degrees.
  • Zemax file 5/11/09 version of KNGAO relay
  • Snapshot of KNGAO relay design, as of 6/1/09:
    (picture)

Version 6
Alternative suggested layout for easier feeds to the LGS WFS and the Keck Interferometer

Version 7
4 August, 2009 Same as version 5, but with the following adjustments:
  1. Moved first fold mirror closer to 200mm closer to K-mirror
  2. moved LGS dichroic 150mm closer to woofer DM (but didn't change angle - do I need to?)
  3. increased angle of interferometer dichroic to 25 degrees
  4. removed interferometer FSM pair
  5. moved acq camera pick-off 100mm closer to LOWFS focus
  6. decreased angle of acq camera pick-off to 45 degrees
  7. removed NGS WFS FSM pair
  8. moved NGS dichroic 100mm closer to science focus

* kngao_relay_v7.JPG:
kngao_relay_v7.JPG

Version 9
12 Jan 2009

Version 9 was produced as a result of some mechanical interference issues, to change the pupil image size on the MEMs tweeter mirror (to 24mm diameter), and fix some telecentricity errors in version 7. Version 9 also has an interferometer feed that is not too different from the existing DSM bench.

The largest change is opening the off-axis angles of the first relay OAPs from 20 to 25 degrees. The first fold mirror angle was adjusted until the LOWFS feed was roughly perpendicular to the telescope optical axis. The LGS WFS dichroic angle was adjusted slightly. The tweeter mirror incidence angle was lowered to 9 degrees in order to have a little more space between the science instrument and the LOWFS assembly. The NGS WFS FSMs were returned.

KNGAO_relay_version_9.JPG AOrelayV5a.png AOandNasmythDrawing_v5relay.png

16 Feb 2010

Top View - chief rays:
NGAO_TopViewChiefRays_2010-02-11.png
Top View - populated (top LOWFS dewar removed):
NGAO_TopViewPopulated_2010-02-11.png
Detail - switchyard:
NGAO_DetailSwitchyard_2010-02-04.png

Interfaces Workshop
Pointing hand Face-to-face meeting at Caltech, 2/17 - 2/18 2010, to work out interface details.
Meeting objectives:
  • Mounting of 2nd relay optics in the LOWFS pickoff area
  • Mounting and field steer into the NGS WFS
  • Placement of and switching the beam to a 2nd instrument
  • Location of cold space enclosure walls

  • NGAO_2nd_relay_reni_1_fewer_fold_shorter_bfd.JPG:
    NGAO_2nd_relay_reni_1_fewer_fold_shorter_bfd.JPG

  • NGAO_2nd_relay_1_sph_2_oae_2nd_pupil_tweeter_telecentric_output_fold_right.JPG:
    NGAO_2nd_relay_1_sph_2_oae_2nd_pupil_tweeter_telecentric_output_fold_right.JPG

Version 10
18 March 2010

Version 10 Incorporates the following changes:

  • Feeding two instrument ports with the switchyard mirror after OAP4.
  • Folded LGS WFS feed to put the LGS WFS on the left side of the Nasmyth (if looking into the bulkhead), while the instruments are on the right.
  • Incorporated the NGS WFS feed into the collimated space before OAP4 (instead of after OAP4), and refocus light with a triplet lens design by Viswa.
  • Opened tweeter mirror from 9 degrees it was in version 9 to the 10 degrees it was pre-version 9.

* KNGAO_100mmpupil_120arcsecRelay_v10.ZMX: AO relay design, as of 18 March, 2010

12 May 2010

* AO_Bench_051210.EASM: AO Bench edrawing model as or 12 may 2010

* AO_Bench_051210.EASM.jpg:
AO_Bench_051210.EASM.jpg

Tools

Throughput and Emissivity Calculator

Throughput and Emissivity Calculation spreadsheet tool and supporting data

Topic attachments
I Attachment History Action Size Date Who Comment
PNGpng 1-tier-champion-dec2007.png r1 manage 141.8 K 2009-01-08 - 21:34 RenateKupke Slide showing 1-tier, 140mm DM cascaded relay design carried over from conceptual design phase.
Compressed Zip archivezip 1080-C1000_Osiris_in_K1_082013.zip r1 manage 51555.1 K 2013-08-21 - 21:42 PeterWizinowich  
PDFpdf 1410-CM0010_Primary_Mirror_Proj.pdf r1 manage 198.7 K 2009-11-20 - 23:48 JimBell 1410-CM0010 Primary Mirror Projected on DMs
Unknown file formatEASM 7013-01_Keck_TELESCOPE_ASSEMBLY,_K2_NGAO.EASM r1 manage 15635.9 K 2009-10-26 - 16:39 DonaldGavel  
Unknown file formatEASM AO_Bench_051210.EASM r1 manage 23404.5 K 2010-05-12 - 19:03 ChrisLockwood AO Bench edrawing model as or 12 may 2010
JPEGjpg AO_Bench_051210.EASM.jpg r1 manage 59.6 K 2010-05-12 - 19:11 ChrisLockwood  
Unknown file formatEASM AO_Bench_KNGAO_ODv9.EASM r1 manage 17208.2 K 2010-02-16 - 22:53 DonaldGavel  
PNGpng AOandNasmythDrawing_v5relay.png r1 manage 441.0 K 2009-06-18 - 23:17 DonaldGavel  
PNGpng AOrelayV5a.png r1 manage 542.2 K 2009-07-01 - 01:21 DonaldGavel  
PNGpng DualStarModule.png r1 manage 92.9 K 2009-07-14 - 17:01 DonaldGavel  
Unknown file formatZMX KNGAO_1-tier_100mm_120arcsec_straightthru_2nd-relay_wtelescope_v2.ZMX r2 r1 manage 59.3 K 2009-03-04 - 21:44 RenateKupke Cascaded-relay design, 1-tier, 100mm DM, avoiding dichroic changer, version 2
Unknown file formatZMX KNGAO_1-tier_100mm_120arcsec_straightthru_2nd-relay_wtelescope_v3.ZMX r1 manage 55.9 K 2009-03-19 - 18:58 RenateKupke Cascaded-relay design, 1-tier, 100mm DM, 2nd relay passes 40"
Unknown file formatZMX KNGAO_1-tier_100mm_120arcsec_straightthru_2nd-relay_wtelescope_v4.ZMX r1 manage 92.9 K 2009-03-30 - 19:34 RenateKupke  
Unknown file formatZMX KNGAO_1-tier_100mm_120arcsec_straightthru_2nd-relay_wtelescope_v5.ZMX r1 manage 85.4 K 2009-05-11 - 17:55 RenateKupke Zemax file containing May 11, 2009 version of KNGAO relay.
Unknown file formatSES KNGAO_1-tier_100mm_120arcsec_straightthru_2nd-relay_wtelescope_v6.SES r1 manage 65.6 K 2009-07-14 - 17:02 DonaldGavel  
Unknown file formatZMX KNGAO_1-tier_100mm_120arcsec_straightthru_2nd-relay_wtelescope_v6.ZMX r1 manage 122.1 K 2009-07-14 - 17:31 DonaldGavel  
Unknown file formatZMX KNGAO_1-tier_100mm_120arcsec_straightthru_2nd-relay_wtelescope_v7.ZMX r2 r1 manage 114.1 K 2009-08-25 - 17:33 RenateKupke Latest iteration of KNGAO relay design, 4 Aug, 2009
Unknown file formatZMX KNGAO_1-tier_100mm_straightthru_2nd-relay_wtelescope.ZMX r1 manage 48.2 K 2009-02-23 - 17:19 RenateKupke Cascaded-relay design, 1-tier, 100mm DM, avoiding dichroic changer.
Unknown file formatZMX KNGAO_100mmpupil_120arcsecRelay_v10.ZMX r1 manage 134.2 K 2010-03-18 - 20:46 RenateKupke AO relay design, as of 18 March, 2010
Unknown file formatZMX KNGAO_100mmpupil_120arcsecRelay_v9.ZMX r1 manage 132.1 K 2010-01-12 - 18:09 RenateKupke  
PowerPointppt KNGAO_168mmDM.ppt r1 manage 212.0 K 2009-01-08 - 21:12 RenateKupke Powerpoint slide with layout of single relay with 168mm 48x48 piezo DM.
Unknown file formatZMX KNGAO_168mmDM_wTT.ZMX r1 manage 36.1 K 2009-01-08 - 17:40 RenateKupke Single relay design, 168mm DM (48 actuators, 3.5mm pitch), separate tip/tilt
Unknown file formatZMX KNGAO_2-tier_folded-2nd-relay_v4_wtelescope.ZMX r1 manage 112.4 K 2009-01-08 - 17:43 RenateKupke Cascaded-relay, 2-tier design carried over from conceptual design phase
Unknown file formatZMX KNGAO_2-tier_straightthru_2nd-relay_v4_wtelescope.ZMX r3 r2 r1 manage 69.5 K 2009-01-29 - 21:47 RenateKupke Cascaded-relay design, 2-tier, 100mm DM, avoiding dichroic changer.
Unknown file formatZMX KNGAO_200mmDM.ZMX r1 manage 29.0 K 2009-01-08 - 17:38 RenateKupke Single relay design, 200mm DM (48 actuator, 5mm pitch)
PowerPointppt KNGAO_200mmDM.ppt r1 manage 121.5 K 2009-01-08 - 21:08 RenateKupke Powerpoint slide with layout of single relay with 200mm, 48x48, piezo DM.
PowerPointppt KNGAO_25mmMEMs.ppt r1 manage 170.0 K 2009-01-08 - 21:07 RenateKupke Powerpoint slide with layout of single relay with 25mm MEMs.
PNGpng KNGAO_Layout6.png r1 manage 21.7 K 2009-07-14 - 17:48 DonaldGavel  
PowerPointppt KNGAO_OptoMechanicalLayout.ppt r1 manage 817.0 K 2009-02-07 - 00:17 DonaldGavel  
PowerPointppt KNGAO_annotated_layout.ppt r1 manage 138.0 K 2009-01-08 - 21:01 RenateKupke Powerpoint slide showing layout of 2-tier cascaded relay from conceptual design phase.
Unknown file formatZMX KNGAO_cascade_140mmDM_straightthru_25mmMEM.ZMX r1 manage 48.8 K 2009-01-29 - 21:26 RenateKupke Cascaded-relay design, 1-tier, 140mm DM, avoiding dichroic changer.
PowerPointppt KNGAO_cascade_straightthru.ppt r1 manage 156.0 K 2009-01-08 - 21:10 RenateKupke Powerpoint slide of 100mm DM cascaded relay with no dichroic changer.
PowerPointppt KNGAO_cascade_straightthru_1tier.ppt r1 manage 121.5 K 2009-01-29 - 21:28 RenateKupke Powerpoint slide of 140mm DM cascaded relay with no dichroic changer.
PowerPointppt KNGAO_cascade_straightthru_1tier_100mm.ppt r1 manage 147.5 K 2009-02-23 - 17:22 RenateKupke Powerpoint slide of 1-tier, 100mm DM cascaded relay of 120" field with no dichroic changer.
PowerPointppt KNGAO_cascade_straightthru_1tier_100mm_v2.2.ppt r1 manage 124.0 K 2009-03-17 - 18:44 RenateKupke Powerpoint slide of 1-tier, 100mm DM cascaded relay of 120" FOV, no dichroic changer, proper orientation.
PowerPointppt KNGAO_cascade_straightthru_1tier_100mm_v2.ppt r1 manage 124.0 K 2009-03-17 - 18:40 RenateKupke Powerpoint slide of 1-tier, 100mm DM cascaded relay of 120" field with no dichroic changer.
PowerPointppt KNGAO_cascade_straightthru_1tier_100mm_v4.ppt r1 manage 252.0 K 2009-03-30 - 19:36 RenateKupke Powerpoint slide of 1-tier, 100mm DM cascaded relay of 120" field with no dichroic changer.
JPEGJPG KNGAO_relay_version_9.JPG r1 manage 258.8 K 2010-01-12 - 18:13 RenateKupke  
Unknown file formatZMX KNGAO_splitrelay_25mmDM_asphereLGSfeed_wtelescope_v4.ZMX r1 manage 55.2 K 2009-01-08 - 17:37 RenateKupke Single relay design, 25mm MEMs DM
Microsoft Word filedoc KeckNGAO_OptoMech_June18,09.doc r1 manage 83.0 K 2009-06-18 - 22:07 DonaldGavel  
Microsoft Word filedoc Keck_NGAO_Opto-Mech_meeting_June_23_2009.doc r1 manage 89.0 K 2009-06-25 - 23:53 SeanAdkins  
Microsoft Word filedoc Keck_NGAO_Opto-Mech_meeting_June_9,_2009.doc r1 manage 79.5 K 2009-06-09 - 22:52 DonaldGavel  
Microsoft Word filedoc Keck_NGAO_OptoMechanical_Meeting_April6,2010.doc r1 manage 29.0 K 2010-04-13 - 16:20 DonaldGavel  
Microsoft Word filedoc Keck_NGAO_OptoMechanical_Meeting_Jun_2_2009.doc r1 manage 59.5 K 2009-06-02 - 20:55 DonaldGavel June 2, 2009
Microsoft Word filedoc Keck_NGAO_optomechanical_June_30_2009.doc r1 manage 91.5 K 2009-07-01 - 01:04 DonaldGavel  
PDFpdf LOWFS_Legs_KNGAO_V7.pdf r1 manage 481.0 K 2009-08-26 - 22:21 DonaldGavel  
Microsoft Word filedoc MeetingNotes_May5,2009.doc r1 manage 79.5 K 2009-05-07 - 16:44 DonaldGavel May 5, 2009
Unknown file formatZMX NGAO-1-tier-champion-dec2007.ZMX r1 manage 51.1 K 2009-01-08 - 17:51 RenateKupke Cascaded-relay, 1-tier, 140mm DM carried over from conceptual design phase
JPEGJPG NGAO_2nd_relay_1_sph_2_oae_2nd_pupil_tweeter_telecentric_output_fold_right.JPG r1 manage 184.5 K 2010-02-18 - 20:05 RichardDekany  
JPEGJPG NGAO_2nd_relay_reni_1_fewer_fold_shorter_bfd.JPG r1 manage 135.7 K 2010-02-18 - 20:00 RichardDekany  
PNGpng NGAO_DetailSwitchyard_2010-02-04.png r1 manage 419.9 K 2010-02-16 - 22:42 DonaldGavel Detail - switchyard
Microsoft Word filedoc NGAO_Opto-Mechanical_Meeting_Minutes_01_12_10.doc r1 manage 26.5 K 2010-01-19 - 17:50 DonaldGavel  
JPEGjpg NGAO_OptoMech_SwithyardPickoffOption_Jan7,09.jpg r1 manage 265.4 K 2009-02-18 - 00:24 DonaldGavel drawing of switchyard concept, with dimensions, on the white board Jan 7, 2009
Microsoft Word filedoc NGAO_OptomechanicalInterfaceMinutes_Jan19,2010_rev1.doc r1 manage 80.5 K 2010-01-19 - 20:15 DonaldGavel  
Microsoft Word filedoc NGAO_Optomechanical_Interface_Meeting_January_19_2010.doc r1 manage 80.5 K 2010-01-19 - 20:13 DonaldGavel  
Microsoft Word filedoc NGAO_Optomechanical_Interface_Meeting_January_19_2010_rev2.doc r1 manage 82.5 K 2010-01-19 - 20:21 DonaldGavel  
PNGpng NGAO_TopViewChiefRays_2010-02-11.png r1 manage 143.6 K 2010-02-16 - 22:40 DonaldGavel Top View - chief rays
PNGpng NGAO_TopViewPopulated_2010-02-11.png r1 manage 607.6 K 2010-02-16 - 22:41 DonaldGavel Top View - populated
Microsoft Word filedoc NGAO_optomechanical_Aug11,2009.doc r1 manage 36.0 K 2009-08-18 - 21:15 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_July17.doc r1 manage 75.0 K 2009-07-17 - 00:19 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_July21,2009.doc r1 manage 74.5 K 2009-07-23 - 16:00 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_meeting_Aug25,09.doc r1 manage 71.0 K 2009-08-26 - 22:26 DonaldGavel August 25, 2009
Microsoft Word filedoc NGAO_optomechanical_meeting_Oct_20_2009.doc r1 manage 72.0 K 2009-10-20 - 22:12 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_meeting_Oct_6_2009.doc r1 manage 53.0 K 2009-10-08 - 21:16 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_meeting_Sept22_2009.doc r1 manage 81.5 K 2009-09-29 - 17:38 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_meeting_Sept29,2009.doc r1 manage 72.0 K 2009-09-30 - 00:57 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_meeting_Sept_15_2009.doc r2 r1 manage 27.5 K 2009-09-29 - 17:35 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_meeting_Sept_1_2009.doc r1 manage 32.0 K 2009-09-08 - 19:09 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_meeting_Sept_8_2009.doc r1 manage 36.5 K 2009-09-08 - 20:45 DonaldGavel  
Microsoft Word filedoc NGAO_optomechanical_meeting_notes_090806.doc r2 r1 manage 28.5 K 2009-08-06 - 20:34 RenateKupke optomechanical meeting minutes, 08/05/09
Microsoft Word filedoc NGAO_optomechanical_meeting_notes_Aug18,09.doc r1 manage 45.0 K 2009-08-18 - 21:15 DonaldGavel  
Microsoft Word filedoc NGAOoptomechanical_July29,09.doc r1 manage 2634.0 K 2009-07-30 - 23:28 DonaldGavel  
PDFpdf OSMs_in_NGAO_F.P..pdf r1 manage 457.9 K 2009-07-16 - 18:20 RenateKupke OSMs in the focal plane of the first relay.
Microsoft Word filedoc PDR_NGAO_relay_v5.doc r1 manage 33070.5 K 2010-05-20 - 02:02 RenateKupke PDR design doc as of 5/19/2010
Microsoft Word filedoc PDR_relay_design.doc r1 manage 2571.5 K 2009-06-12 - 19:14 RenateKupke  
Microsoft Word filedoc PDR_relay_design_v3.doc r1 manage 2603.0 K 2009-07-14 - 21:22 RenateKupke 14 July, 2009 version of design document. Includes preliminary tolerance analysis
Microsoft Word filertf Re__Opto-Mech_meeting_takeways.rtf r1 manage 5.9 K 2009-04-23 - 22:56 DonaldGavel  
PNGpng Slide1.png r1 manage 131.3 K 2009-06-02 - 18:05 RenateKupke KNGAO relay design, as of June 1, 2009.
Microsoft Word filedoc Summary_of_Optomechanical_Interfaces_meeting_March_16,2010.doc r1 manage 32.0 K 2010-03-16 - 20:26 DonaldGavel  
Microsoft Word filedoc Summary_of_Optomechanical_Interfaces_meeting_March_23,_2010.doc r1 manage 30.5 K 2010-03-23 - 22:35 DonaldGavel March 3, 2010
Unknown file formatEASM TELESCOPE_ASSEMBLY_w-bench_100mm_1-tier_V5.EASM r1 manage 2113.9 K 2009-06-09 - 16:27 DonaldGavel OptoMechancanical drawing of AO relays on Nasmyth platform - 6/9/09
PNGpng TELESCOPE_ASSEMBLY_w-bench_100mm_1-tier_V5.png r1 manage 360.9 K 2009-06-09 - 16:29 DonaldGavel OptoMechancanical drawing of AO relays on Nasmyth platform - 6/9/09
PNGpng TELESCOPE_ASSEMBLY_w-bench_100mm_1-tier_V5_thumb.png r1 manage 15.6 K 2010-02-16 - 22:28 DonaldGavel  
PowerPointppt ThroughputEmissivityStudy.ppt r1 manage 591.0 K 2009-05-06 - 21:42 DonaldGavel Report on cooled vs uncooled option trade study
Microsoft Excel Spreadsheetxls ThroughputEmissivity_v6.xls r1 manage 5368.5 K 2009-05-06 - 19:59 DonaldGavel  
Microsoft Excel Spreadsheetxls ThroughputEmissivity_v7.xls r1 manage 5287.0 K 2009-05-06 - 21:38 DonaldGavel Version that includes LGS WFS and LOWFS paths
Microsoft Excel Spreadsheetxls ThroughputEmissivity_v8_(version_1).xls r1 manage 5272.0 K 2009-06-12 - 14:47 RenateKupke June, 2009 update of throughput and emissivity calculator
PDFpdf interferometer_options.pdf r1 manage 1449.7 K 2009-09-01 - 17:31 RenateKupke Looking at options for feeding the interferometer.
Unknown file formatEASM kngao_model_w_telescope.EASM r1 manage 934.3 K 2009-02-13 - 01:48 DonaldGavel SolidWorks e-drawing of 2-tier layout and pickoff switchyard. (delete the enclosure to see the optics)
JPEGJPG kngao_relay_v7.JPG r1 manage 93.8 K 2009-08-04 - 20:32 RenateKupke  
PDFpdf placemat.pdf r1 manage 319.0 K 2009-07-14 - 17:01 DonaldGavel  
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