NGAO Opto-Mechanical Design Work in Progress, PDR Phase

-- this page initiated by DonaldGavel - 07 Jan 2009

Designs originating in Conceptual Design Phase

• KNGAO_2-tier_folded-2nd-relay_v4_wtelescope.ZMX: Cascaded-relay, 2-tier design carried over from conceptual design phase
• KNGAO_annotated_layout.ppt: Powerpoint slide showing layout of 2-tier cascaded relay from conceptual design phase.

• NGAO-1-tier-champion-dec2007.ZMX: Cascaded-relay, 1-tier, 140mm DM carried over from conceptual design phase
• 1-tier-champion-dec2007.png: Slide showing 1-tier, 140mm DM cascaded relay design carried over from conceptual design phase.

Single Relay concepts

• KNGAO_splitrelay_25mmDM_asphereLGSfeed_wtelescope_v4.ZMX: Single relay design, 25mm MEMs DM
• KNGAO_25mmMEMs.ppt: Powerpoint slide with layout of single relay with 25mm MEMs.

• KNGAO_200mmDM.ZMX: Single relay design, 200mm DM (48 actuator, 5mm pitch)
• KNGAO_200mmDM.ppt: Powerpoint slide with layout of single relay with 200mm, 48x48, piezo DM.

• KNGAO_168mmDM_wTT.ZMX: Single relay design, 168mm DM (48 actuators, 3.5mm pitch), separate tip/tilt
• KNGAO_168mmDM.ppt: Powerpoint slide with layout of single relay with 168mm 48x48 piezo DM.

Cascaded Relay and Switchyard Concept that avoids the dichroics between relays

2-tier, 100 mm beam in 1st relay

• KNGAO_2-tier_straightthru_2nd-relay_v4_wtelescope.ZMX: Cascaded-relay design, 2-tier, 100mm DM, avoiding dichroic changer.
• KNGAO_cascade_straightthru.ppt: Powerpoint slide of 100mm DM cascaded relay with no dichroic changer.

1-tier, 140 mm beam in 1st relay

• KNGAO_cascade_140mmDM_straightthru_25mmMEM.ZMX: Cascaded-relay design, 1-tier, 140mm DM, avoiding dichroic changer.
• KNGAO_cascade_straightthru_1tier.ppt: Powerpoint slide of 140mm DM cascaded relay with no dichroic changer.

Pickoff switchyard details (valid for either 1st relay option)

• KNGAO_OptoMechanicalLayout.ppt: KNGAO_OptoMechanicalLayout.ppt
• NGAO_OptoMech_SwithyardPickoffOption_Jan7,09.jpg: 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).
• kngao_model_w_telescope.EASM: 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.

• KNGAO_1-tier_100mm_straightthru_2nd-relay_wtelescope.ZMX: Cascaded-relay design, 1-tier, 100mm DM, avoiding dichroic changer.
• KNGAO_cascade_straightthru_1tier_100mm.ppt: Powerpoint slide of 1-tier, 100mm DM cascaded relay of 120" field with no dichroic changer.