Showing papers on "Bayer filter published in 1995"
TL;DR: The results show that the unconventional shapes of the optimal filters can be weil approximated by actual filters with slight degradation in performance.
Abstract: A method of selecting optimal color filters to perform accurate multi-illuminant color correction is reviewed. The transmittances for a set of filters obtained by the method were provided to a color filter manufacturer. The manufacturer used a dichroic filter modeling program to produce transmittances that satisfied the physical constraints of the manufacturing process and approximated the optimal filter transmittances. The ideal and manufacturable filters are compared through computer simulation and their accuracy assessed during the CIE Δ E L*a*b measure. The results show that the unconventional shapes of the optimal filters can be weil approximated by actual filters with slight degradation in performance.
37 citations
Patent•
20 Nov 1995
TL;DR: In this article, an image sensor with an integral color filter array is described, which consists of a semiconductor substrate having an optically planar top surface, a plurality of image pixels formed in the substrate, and an array of physically contiguous color filter elements embedded in a substrate whose top and bottom surfaces are coplanar.
Abstract: An image sensor and method of making such sensor is described. The sensor includes an integral color filter array, comprising: a semiconductor substrate having an optically planar top surface; a plurality of spaced image pixels formed in the substrate; and an array of physically contiguous color filter elements embedded in the substrate whose top and bottom surfaces are coplanar and which have no overlap of color filter layers between adjacent color filter elements.
18 citations
Patent•
18 Sep 1995TL;DR: In this paper, a process for producing a color filter is described, which comprises the steps of: providing a glass base equipped with black matrices; obtaining the pixel holes in the base; and applying inks into the pixels to form colored pixels of different colors.
Abstract: Disclosed herein is a process for producing a color filter, which comprises the steps of:
providing a glass base equipped with black matrices;
etching the glass base using the black matrices as a mask to form pixel holes in the base; and then
applying inks into the pixel holes to form colored pixels of different colors.
10 citations
Proceedings Article•
1 Jan 1995
9 citations
Patent•
28 Sep 1995
TL;DR: In this article, the color filter of a solid-state image pickup element is constituted by a mosaic-like color filter, in which one line where a white color filter whose transmission rate of wavelengths 400nm-700nm is not uniform and a green color filter are alternately arranged, and another line where cyanogen and yellow color filters are alternate arranged are alternated arranged.
Abstract: PROBLEM TO BE SOLVED: To provide a color filter of a solid-state image pickup element which reduces the difference of respective luminance signals constituted by one line output corresponding to horizontal scanning. SOLUTION: The color filter of the solid-state image pickup element 1 is constituted by a mosaic-like color filter 3 in which one line where a white color filter whose transmission rate of wavelengths 400nm-700nm is not uniform and a green color filter are alternately arranged, and one line where cyanogen and yellow color filters are alternately arranged are alternately arranged. The sum of the transmission rate around the wavelengths 400-700nm in the white and green color filters is matched with that around the wavelengths 400nm-700nm in the cyanogen and yellow color filters or they are almost matched. The W color filter is not necessarily provided.
3 citations