Hybrid color image sensing array

Details Hybrid color image sensing array Hybrid color image sensing array

1979-02-28

1980-07-22

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 48, 357 24, 357 30, H04N 907, H01L 2714

Patent

active

042142644

ABSTRACT:
A hybrid color image sensing array includes: (a) an array of semiconductor image sensing elements, each element having superposed upper and lower light responsive channels for producing first and second photosignals, the intrinsic spectral responses of the channels being different due to the differential absorption of light by a semiconductor material; and (b) an array of color filter elements disposed over the array of image sensing elements, the array of filter elements having: (1) elements of a first relative transmittance type adapted to tailor the spectral responses of an image sensing element such that the photosignals produced by the element possess a component representing the response of the element to light in a first preferred spectral region and a component representing the response of the element to light in a second spectral region, and (2) elements of a second relative transmittance type adapted to tailor the spectral responses of the image sensing element such that the photosignals produced by the element possess a component representing the response of the element to light in the first spectral region and a component representing the response of the element to light in a third spectral region.
Known matrixing procedures are employed to separate a relatively high resolution first signal and relatively lower resolution second and third signals from the photosignals produced by the hybrid color image sensing array.

REFERENCES:
patent: 3717724 (1973-02-01), Montgomery
patent: 3860959 (1975-01-01), Kubo et al.
patent: 3971065 (1976-07-01), Bayer
patent: 4047203 (1977-09-01), Dillon
"Color Responsive CCD Images", Research Disclosure, Aug. 1978, vol. 172, Disclosure No. 17240.

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