HICIAO: ForeOptics

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HICIAO Fore-Optics VJ Installation
Date Created 01-17-06
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Subaru NASMYSTH with IRCS at NASMYTH Focus
Light
Telescope
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Close-up, same View angle
Auto-Guider
Subaru IRCS Instrument
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Telescope Focus
Proposed Rail System for IRCS
1560 mm
Target Assembly
Floor
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HICIAO Position when used with AO
Fore-Optics is NOT coupled to HICIAO VJ, but to
AO-Bench Interface Plate (green)
AO-Interface Plate Design by Subaru
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Installation Procedure for HICIAO VJ and
Fore-Optics Assemblies

• Design Goals
• Make Fore-Optics Assembly separate from HICIAO
  VJ
• Primary Purpose of design Protect the Wollaston
  Prism from colliding with any part of the VJ
  during installation
• After an initial setup and alignment, provide
  features for quick re-installation of instrument

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Rough Overview of Installation Sequence1)
Install the Fore-Optics Assembly to the
AO-Interface Plate mounted to AO-Bench2)
Transport HICIAO VJ and Interface Frame to the
site either by Crane of Rail ( Subarus
decision)3) HICIAO VJ must be in the retracted
position!4) Move HICIAO to observing position
using crankThe following slides will explain in
detail the procedure, including initial setup and
alignment.

• HICIAO Interface Frame

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Interlocking Pin Qty2
Side Adjust Bracket Qty4
VJ Bottom Plate
Opt-Axis Adjust Rail Qty2
Foot Focus Adjustment Qty4
Z-Shim Qty4
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Register Pin Qty2
Interlocking Pin Press fitted to VJ Bottom Plate
Front End Stop Plate
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Rectangular Slot
V-Groove