Patent ID: 8665357
Filing Date: 2014-03-04
Classification: H01L

Abstract:
1. An imaging apparatus comprising: a first light-transmitting substrate which includes a first surface and a second surface on an opposite side of the first surface; a plurality of lenses which is placed in a planar shape along the first surface and concentrates incident light, respectively; a light shielding layer which is formed on the second surface and has a plurality of opening sections, the opening sections through which optical axes of each lens passes; and a plurality of light sensing elements which is placed in a planar shape corresponding to each lens so that the optical axes of the lenses pass through a light sensing surface facing the second surface at an interval, wherein: in a reference surface passing through the respective optical axes of the first lens and the second lens adjacent to each other among the plurality of lenses, a diameter of the opening section corresponding to the first lens is set so as to be lower than a diameter of a reference region which is defined as an intersection point between a straight line reaching from a periphery of an effective diameter of the first lens to a periphery of a light sensing surface of a light sensing element corresponding to the first lens through an optical axis of the first lens and the second surface of the first substrate, and, in a region between an optical axis of the first lens and an axis of the second lens in the reference surface, an angle, which is formed by a straight line passing through a periphery of an opening section corresponding to the second lens and a periphery of a light sensing surface of the light sensing element corresponding to the first lens to the optical axis of the second lens is greater than a maximum refraction angle of incident light to the first surface, and an efficient diameter D of each lens, a diameter a of each opening section of the light shielding layer, a distance h between the light sensing surfaces of the respective light sensing elements and the surface of the light shielding layer, a diameter d of each light sensing surface, and a distance s between the respective light sensing surfaces and centers of each lens satisfy a relationship of formula (A) as below: