Autocollimator Principles of Operation by Micro-Radian Instruments (source code)

= Autocollimator Principles of Operation by Micro-Radian Instruments
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https://www.micro-radian.com/Principles.html

Manufacturer primary account: What is an Autocollimator; Principles of Operation; Digital vs Visual Autocollimators. Collimated outward beam, external reflector, focused return and detector/eyepiece. No marketing uniqueness or general accuracy claims reused.