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:
Apr. 09, 2002
Filed:
Mar. 30, 2001
Applicant:
Inventors:
Assignee:
Fuji Photo Optical Co., Ltd., Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 1/100 ;
U.S. Cl.
CPC ...
B29D 1/100 ;
Abstract
An optical element molding method for molding an optical element having an asymmetrical optically functional surface by pressing a heated preform in which, after a center part of a transfer surface of a molding die and a center part of the preform are brought into contact with each other, peripheries of the center part of the preform are brought into contact with the transfer surface, to transfer the form of the transfer surface to the preform. Consequently, the optically functional surface shape can be favorably transferred to the preform.
Quick Actions:
Fujita, Hiroaki. (2002). Optical element molding method and optical material for molding optical element (U.S. Patent No. 6368524). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6368524
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