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:
Nov. 09, 2010
Filed:
Nov. 01, 2006
Tadashi Narui, Sagamihara, JP;
Tadashi Narui, Sagamihara, JP;
Nikon Corporation, Tokyo, JP;
Abstract
Solid-state image sensors are disclosed that include an optical unit which separates incident light into a plurality of color elements, an optical receiving unit which converts each of the color elements separated by the optical unit to an electrical signal and an anti-reflection film having a high-refractive-index layer with a refractive index of 1.7 or higher and a low-refractive-index layer with a refractive index of less than 1.7. The anti-reflection film is between the optical unit for each of color elements and the optical receiving unit, on a semiconductor substrate. Each of the high-refractive-index layer and the low-refractive-index layer corresponds to at least one color element of the plurality of color elements and includes two or more layers. With such sensors it is possible to suppress the variation in sensitivity for each color.