Optical encoder

Details Optical encoder Optical encoder

2008-05-27

2008-05-27

Hess, Daniel A (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C250S231120, C250S231130, C250S231140

Reexamination Certificate

active

07377435

ABSTRACT:
An optical encoder is disclosed, in particular, which has a light sensing element with light-sensing cells arranged in a matrix. The light sensing element repeatedly detects the same reflective light beam by different rows of light-sensing cells to increase the precision of feedback control. Furthermore, since the light sensing element synchronously and repeatedly receives the reflective light beam, the reliability of detected signals is increased.

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patent: 7102123 (2006-09-01), Chin et al.
patent: 2006/0243895 (2006-11-01), Nordenfelt et al.

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