Patent ID: 7456381
Filing Date: 2008-11-25
Classification: H01L

Abstract:
1. A solid-state image sensor comprising: light-receiving elements arranged in a light-receiving area; in-layer lenses on said light-receiving elements; micro-lenses on said in-layer lenses, with a curvature of said micro-lenses being greater than a curvature of said in-layer lenses; and a transparent film on said micro-lenses, wherein, in a central portion of said light-receiving area a corresponding one of said micro-lenses is directly above a corresponding one of said light-receiving elements, and in a portion of said light-receiving area that is closer to a periphery of said light-receiving area than a center of said light-receiving area corresponding ones of said micro-lenses are offset from directly above corresponding ones of said light-receiving elements towards the center of said light-receiving area; and wherein said light-receiving elements, in-layer lenses, micro-lenses and transparent film are constructed and arranged such that when oblique light enters the solid-state image sensor from above the solid-state image sensor at the periphery of said light-receiving area, the oblique light is refracted towards said light-receiving elements by said transparent film and further refracted towards said light-receiving elements by said micro-lenses.