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:
Feb. 01, 1994
Filed:
Feb. 10, 1992
Applicant:
Inventor:
Yuji Ogasawara, Tokyo, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
359566 ; 250239 ; 359569 ; 257431 ;
Abstract
A solid state imaging apparatus characterized in that a phase low pass filter is formed by providing an array of recesses and projections having a predetermined repeated pitch on the surface of the light receiving side of a clear molded package of a solid state imaging device. When an object light passes through the phase low pass filter, dot images will be separated by diffraction of the light and an image will be formed on every other unit pixel of the light receiving surface. Thereby, the moire can be removed without using a crystal plate filter or the like.