Patent ID: 6518558
Filing Date: 2003-02-11
Classification: H01L,H04N

Abstract:
An optical sensor for assembling an image, comprising an arrangement of pixel units, each pixel unit receiving incident radiation of a portion of said image, each said pixel unit comprising:an optoelectronic converter for converting the incident radiation into a photoelectric current depending on intensity and wavelength of said incident radiation, wherein the optoelectronic converter is selectively controlled based on a selected spectral sensitivity; an integrator medium for deriving measured values corresponding to the detected photoelectric current and to the selected spectral sensitivity; at least two controllable parallel storage devices, such that at least two of said measured values, each assigned to different spectral ranges of the incident radiation, are stored during a measurement period and subsequently read out together to form the relevant color information for a pixel element representing said portion of said image; and an amplifier with an adjustable gain factor being provided for each of the at least two controllable parallel storage devices such that the gains in the effect in integration of the photoelectric currents are different from one another with regard to individual color components, wherein each said amplifier outputs a respective individual color signal.