Photoelectric encoder

Details Photoelectric encoder Photoelectric encoder

2007-12-11

2007-12-11

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C250S231130

Reexamination Certificate

active

11371759

ABSTRACT:
A photoelectric encoder is provided which has an optical system including a first lens array inserted between a main scale and a light receiving element. An image divided or reversed by the first lens array can be electrically or optically re-reversed. This can achieve the reduction of the entire size as well as increase in the scale field of view, while maintaining the image shape and/or pattern.

REFERENCES:
patent: 5067816 (1991-11-01), Ichikawa
patent: 7186969 (2007-03-01), Shimomura et al.

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