Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2006-03-14
2006-03-14
Pyo, Kevin (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C257S432000, C438S070000
Reexamination Certificate
active
07012243
ABSTRACT:
A photo-sensor has a light-sensitive element mounted on a substrate, the light-sensitive element is encapsulated by an encapsulation resin. A filter layer is mounted on the encapsulation resin. The filter layer has a filtering effect corresponding to spectral responsivity of the light-sensitive element.
REFERENCES:
patent: 4523102 (1985-06-01), Kazufumi et al.
patent: 4827117 (1989-05-01), Uchida et al.
Fukasawa Koichi
Kikuchi Satoru
Citizen Electronics Co. Ltd.
Dennison Schultz Dougherty & MacDonald
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