Optical sensor

Details Optical sensor Optical sensor

2008-11-06

2010-12-28

Wong, Tina M (Department: 2874)

Optical waveguides

Optical waveguide sensor

C385S037000, C356S039000, C356S305000

Reexamination Certificate

active

07860354

ABSTRACT:
An optical sensor (1) includes a sensor chip member (2) having an optical waveguide layer (21), a combination of an incidence end grating (22a) and an output end grating (22b) spaced from each other, in contact with the optical waveguide layer (21), and a reaction reagent (23) provided on the optical waveguide layer (21) to detect as an optical change a quantity of measurement object interposed between the incidence end grating (22a) and the output end grating (22b), and a chamber member (3) to have, when the sensor chip member (2) is assembled, a facing surface (F) in position facing the optical waveguide layer (21), and a gap (I) defined between the optical waveguide layer (21) and the facing surface (F), the reaction reagent (23) being disposed in the gap (I).

REFERENCES:
patent: 6903815 (2005-06-01), Uchiyama et al.
patent: 7269308 (2007-09-01), Tono et al.
patent: 7410614 (2008-08-01), Uchiyama et al.
patent: 2001/0001021 (2001-05-01), Kraus et al.
patent: 2005/0147342 (2005-07-01), Uchiyama et al.
patent: 2007/0116401 (2007-05-01), Xia et al.
patent: 2004-212188 (2004-07-01), None

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