Optical sensor with concave mirror

Details Optical sensor with concave mirror Optical sensor with concave mirror

1997-10-23

2000-11-28

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250239, 25023118, 257 82, H01J 314

Patent

active

061538760

ABSTRACT:
An optical sensor includes a sensor section provided in a secured manner and including a light emitting element and a light receiving element located opposed to the light emitting element; and a reflective body connected to an operation section and movable with respect to the sensor section. The reflective body is a concave mirror for guiding light from the light emitting element to the light receiving element.

REFERENCES:
patent: 3886361 (1975-05-01), Wester
patent: 4459022 (1984-07-01), Morey
patent: 4533827 (1985-08-01), Fincher
patent: 4935728 (1990-06-01), Kley
patent: 5371374 (1994-12-01), Fritzson
patent: 5659969 (1997-08-01), Butler et al.
patent: 5665983 (1997-09-01), Nagano

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