A Lens-Measuring Instrument-Engineered For People
Abstract
The article describes a specialized instrument which can measure back focal lengths of lenses to +/-.002 inches. It incorporates design features which promote quick, convenient and accurate use by relatively untrained operators.
- Publication:
-
Optical Engineering
- Pub Date:
- June 1974
- DOI:
- 10.1117/12.7971705
- Bibcode:
- 1974OptEn..13..275C