Minimal depth light filtering image sensor

Details Minimal depth light filtering image sensor Minimal depth light filtering image sensor

2004-05-21

2009-10-27

Epps, Georgia Y (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C257S223000, C257S088000, C257S294000, C438S070000

Reexamination Certificate

active

07608811

ABSTRACT:
A method and apparatus for directing light to a light sensor and filtering out an infrared component from the directed light. In one embodiment, the apparatus includes an array of light sensors disposed on a substrate, wherein the light sensors are operable to convert light intensity into a voltage signal. The apparatus further includes a cover plate disposed over the light sensors such that the cover plate creates a cavity over the array of sensors. The apparatus further includes filter material disposed between the cover plate and the light sensors in the cavity formed between the light sensors and the cover plate. The filter material is operable to filter the light passing through the cover plate. In particular, in one embodiment, light having wavelengths in the infrared range may be filtered out.

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German Patent Application 102005005590.7-33 office action dated Sep. 5, 2006.
English Translation of German Patent Application 102005005590.7-33 office action dated Sep. 5, 2006.

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