Optical switch

Details Optical switch Optical switch

2007-06-26

2007-06-26

Tso, Laura (Department: 2875)

Illumination

With liquid container

C362S802000, C073S29000R, C340S619000, C250S573000, C250S900000, C250S901000

Reexamination Certificate

active

11241909

ABSTRACT:
An optical switch having a housing, a light source and a light detector. The light source and light detector are located remote from the housing. The light source is connected to the housing with a first light guide, and the light detector is connected to the housing with a second light guide. The first and second light guide cables have distal ends positioned through the housing and are optically aligned but separated by a gap. The switch includes a device to interrupt a light beam that is usually adapted to removably occupy the gap.

REFERENCES:
patent: 3863067 (1975-01-01), Gooley
patent: 4051723 (1977-10-01), Head et al.
patent: 4064754 (1977-12-01), Frey
patent: 4091671 (1978-05-01), McLees
patent: 4519257 (1985-05-01), Simpkins
patent: 4856874 (1989-08-01), Tusting
patent: 4938590 (1990-07-01), Ishida
patent: 5017748 (1991-05-01), Sapiro
patent: 5373153 (1994-12-01), Cumberledge et al.
patent: 5874899 (1999-02-01), Barmore et al.

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