Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2006-07-11
2009-02-24
Epps, Georgia Y (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S200000, C385S013000, C359S334000
Reexamination Certificate
active
07495207
ABSTRACT:
An optical sensor has: a sensing portion having an optical fiber to be disposed at a measurement point of temperature, distortion, pressure etc.; a light source to output a light to the sensing portion; and a photodetector to detect a backscattered light from the sensing portion. The sensing portion has a tape sheet and the optical fiber shaped into a corrugated form with a predetermined curvature. Alternatively, the sensing portion has a polymer optical waveguide with a core shaped into a corrugated form with a predetermined curvature.
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Chinese Office Action dated May 16, 2008 with English Translation.
Hiruta Akihiro
Kobayashi Masahiko
Ogura Masaki
Epps Georgia Y
Hitachi Cable Ltd.
McGinn IP Law Group PLLC
Williams Don
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