Solid state imaging device
OwnerTomoki YAMADAinventor
Life of this patent
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Abstract
A solid state imaging device includes color pixels to generate color signals and white pixels to generate luminance signals. The color pixels are arranged in a checkered pattern, and the white pixels are surrounded by the color pixels. Each color pixel has a light receiving element, a color filter and a first micro-lens. Each white pixel has a light receiving element and a second micro-lens. The first micro-lens is higher than the second micro-lens, so that an incident angle range is wide on the first micro-lens. The color pixels achieve better light-collection efficiency for oblique incident light than the white pixels.
Claims5
A solid state imaging device in which a plurality of light receiving elements that photo-electrically convert incident light into signal charge are arranged in a matrix in a semiconductor substrate, said solid state imaging device comprising:
- regularly-arranged color pixels, each composed of a first light receiving element, among said plurality of light receiving elements, at a particular position in said matrix, a color filter disposed on a light incident side of said first light receiving element, and a first micro-lens disposed on a light incident side of said color filter;
- and
- regularly-arranged white pixels, each composed of a second light receiving element, among said plurality of light receiving elements, adjoining at least one said first light receiving element, and a second micro-lens disposed on a light incident side of said second light receiving element and having a lower vertex than said first micro-lens.
Dependencies are inferred from the claim text.