The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 1994
Filed:
Feb. 16, 1993
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A solid-state imaging device includes a semiconductor substrate in which an element part including a plurality of light responsive elements for generating charge carriers in response to incident light and a transfer part for transferring the charge carriers generated in each light responsive element are incorporated; a lens layer is disposed on the element part so that incident light is collected in the light responsive elements; and a light beam dispersion layer is disposed between the lens layer and the element part and includes two light transmissive layers having different refractive indices for dispersing light collected by the lens layer so that collected light entering respective light responsive elements is closer to a parallel beam than the incident light. By suppressing broadening of incident light in the semiconductor substrate at the light responsive elements, fewer charge carriers enter the CCD channel region and smear is reduced.