High dynamic range imaging device using multiple pixel cells

Details High dynamic range imaging device using multiple pixel cells High dynamic range imaging device using multiple pixel cells

2005-08-11

2009-12-22

Ometz, David L (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S315000, C348S275000, C348S276000, C348S272000, C348S273000, C257S232000

Reexamination Certificate

active

07636115

ABSTRACT:
A method and apparatus for achieving high-dynamic range operation with a set of spatially distributed pixel cells is provided. A pixel array with a row of pixels having apertures of varying sizes in a metal mask formed thereon controls the sensitivity of each pixel cell to light. A neutral density filter having varying light transparency values is also provided over the set of pixel cells to control the sensitivity of each pixel cell to light. The pixel cells voltage outputted is combined to obtain high-dynamic range operation.

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