Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2007-11-27
2007-11-27
Lee, John R. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S231140
Reexamination Certificate
active
11484760
ABSTRACT:
A photoelectric encoder of the invention is furnished with a light-emitting element and a light-receiving element for sending and receiving light that are disposed in opposition to one another, and a support member for accommodating the light-emitting element and the light-receiving element. The support member is provided with a through hole between the light-emitting element and the light-receiving element. A code strip in which a plurality of slits have been formed is inserted through the through hole and moved so that it passes between the light-emitting element and the light-receiving element. As a result, light from the light-emitting element is intermittently incident on the light-receiving element through the plurality of slits in the code strip.
REFERENCES:
patent: 4716292 (1987-12-01), Rieder et al.
patent: 5177357 (1993-01-01), Yamaguchi et al.
patent: 6995356 (2006-02-01), Chong et al.
patent: 2005/0077457 (2005-04-01), Hofer
patent: 50-159759 (1975-12-01), None
patent: 59-122506 (1984-08-01), None
patent: 64-44413 (1989-03-01), None
patent: 4-238223 (1992-08-01), None
patent: 10-235958 (1998-09-01), None
patent: 2004-506884 (2004-03-01), None
patent: 2004-160871 (2004-06-01), None
patent: 02/14794 (2002-02-01), None
Lee John R.
Nixon & Vanderhye P.C.
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