Electro-optical position transducer

Details Electro-optical position transducer Electro-optical position transducer

1980-10-14

1982-07-20

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250237G, H04L 300

Patent

active

043408141

ABSTRACT:
An electro-optical encoder having a head assembly adapted for movement relative to an encoder scale and including a single compact efficient reflective light source providing illumination of a plurality of reticles and associated scale portions.

REFERENCES:
patent: 3525094 (1970-08-01), Leonard

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