Paper
15 October 1993 High bore-sight accuracy collimators
James A. Sterritt II
Author Affiliations +
Abstract
This is an Optical Engineer's look at the engineering and testing concerns for a collimator requiring a 5 arcsecond bore-sight to its mechanical mounting datums. The collimator is of the off axis Newtonian type with a fairly fast f/number of 3.75. The primary aim of this paper is the special concerns of aligning a collimator very precisely to a mechanical datum, and doing it quickly. The optical engineering and test aspects of the alignment process are presented with an emphasis on information applicable to other designs. Metrology methods are all based on the LUPI or Laser Unequal Path Interferometer monitoring the Aspheric Mirror Alignment. The control of the bore-sight to the mechanical datums is reliant on a fixture system designed and built by the author to make volume production as painless as possible. The paper addresses how the fixture design can be used to help the alignment rather than specifics of this exact system design.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James A. Sterritt II "High bore-sight accuracy collimators", Proc. SPIE 1996, Optical Alignment, (15 October 1993); https://doi.org/10.1117/12.160422
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KEYWORDS
Collimators

Mirrors

Optical alignment

Wavefronts

Interferometers

Tolerancing

Interfaces

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