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Proceedings Paper

Infrared incoherent imaging: elements of rotary encoder optical design
Author(s): Christopher B. Svec
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Paper Abstract

The optical system of an optical rotary encoder is presented. The requirements of the optics system are given and their effects on optical design decisions are discussed. Steps taken to insure stable operation over aa minus 40 degree Celsius to plus 85 degree Celsius temperature range are presented. Designing for manufacturing tolerances is discussed. A novel application of a fiber illuminator LED as a short-distance collimated source is shown to be an acceptable low-cost alternative to a laser diode. The importance of effective plastic element employment in low- cost, mass-production optical systems is demonstrated.

Paper Details

Date Published: 1 November 1996
PDF: 6 pages
Proc. SPIE 2863, Current Developments in Optical Design and Engineering VI, (1 November 1996); doi: 10.1117/12.256260
Show Author Affiliations
Christopher B. Svec, Danaher Controls (United States)


Published in SPIE Proceedings Vol. 2863:
Current Developments in Optical Design and Engineering VI
Robert E. Fischer; Warren J. Smith, Editor(s)

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