Patent ID: 9748305
Date: 2017-08-29
CPC Classifications: H01L

Claim:
1. An image sensor comprising: a photo sensor layer comprising a two-dimensional array of a plurality of photo-sensing cells, the plurality of photo-sensing cells comprising a first photo-sensing cell, a second photo-sensing cell, a third photo-sensing cell, and a fourth photo-sensing cell, which respectively correspond to a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant defined in a Cartesian coordinate system; a color separation layer disposed on the photo sensor layer, the color separation layer comprising a transparent spacer layer and color separation elements disposed within the transparent spacer layer, wherein the color separation layer separates light incident thereon according to wavelength; and a micro lens array disposed on the color separation layer, the micro lens array comprising a two-dimensional array of a plurality of micro lenses, wherein each of the plurality of micro lenses concentrates light incident thereon onto one of the plurality of color separation elements, wherein the plurality of color separation elements comprises: wherein the first main splitter and the plurality of first auxiliary splitters are arranged in an area facing the second photo-sensing cell, and the second main splitter and the plurality of second auxiliary splitters are arranged in an area facing the fourth photo-sensing cell.