PIXEL HAVING LIGHT FOCUSING TRANSPARENT DIFFRACTIVE GRATING

Color image sensors and systems are provided. A sensor as disclosed includes a plurality of color sensing pixels disposed within an array, each of which includes a plurality of sub-pixels. Each color sensing pixel within the image sensor is associated with a set of diffraction features disposed in a...

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1. Verfasser:	Lenchenkov, Victor A
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TESTING
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creator	Lenchenkov, Victor A
description	Color image sensors and systems are provided. A sensor as disclosed includes a plurality of color sensing pixels disposed within an array, each of which includes a plurality of sub-pixels. Each color sensing pixel within the image sensor is associated with a set of diffraction features disposed in a plurality of diffraction element layers. The diffraction features can be formed from materials having an index of refraction that is higher than an index of refraction of the surrounding material. At least one of the diffraction element layers is formed in a grating substrate on a light incident side of a sensor substrate. Color information regarding light incident on a pixel is determined by applying ratios of signals obtained by pairs of included sub-pixels and calibrated ratios for different colors to a set of equations. A solution to the set of equations provides the relative contributions of the calibrated colors to the incident light.
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subjects	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TESTING
title	PIXEL HAVING LIGHT FOCUSING TRANSPARENT DIFFRACTIVE GRATING
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