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:
Jul. 29, 2008
Filed:
Dec. 02, 2004
Applicant:
Takashi Ito, Saitama, JP;
Inventor:
Takashi Ito, Saitama, JP;
Assignee:
Fujinon Corporation, Saitama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an optical element capable of preventing a ghost in the use for a sensor such as a CCD or CMOS. In the optical element including an optical function surface of high surface accuracy and a flange formed around the surface, the optical function surface having an optical surface diameter somewhat larger than an effective diameter in order to secure high surface accuracy for the effective diameter, a parting diameter of a molding die is made larger than the optical surface diameter and a parting position is disposed outside the optical surface diameter.