Optical filters and associated imaging devices

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11264424
APP PUB NO 20210091135A1
SERIAL NO

16611973

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An imaging device includes a photodetector and an optical filter disposed on a light-receiving surface of the photodetector. The optical filter may include a diffraction grating, a core layer, and a reflector disposed on first and second opposing sides of the core layer. In some cases, the optical filter (e.g., a guided mode resonance (“GMR”) filter) uses interference of electromagnetic waves on an incidence plane of light or a plane parallel to the incidence plane. The reflector may reflect electromagnetic waves between adjacent optical filters. In some cases, the imaging device is a back-side-illuminated or front-side-illuminated CMOS or CCD image sensor.

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Patent Owner(s)

  • SONY SEMICONDUCTOR SOLUTIONS CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Mikinori Kanagawa, JP 8 23
Murakami, Hirotaka Kanagawa, JP 14 39
Yokogawa, Sozo Kanagawa, JP 46 377

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