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. 08, 1994
Filed:
Aug. 19, 1992
Applicant:
Inventors:
Hideto Monji, Katano, JP;
Kiyoshi Kuribayashi, Neyagawa, JP;
Makoto Umetani, Hirakata, JP;
Noriyuki Kawata, Omiya, JP;
Assignees:
Sumita Optical Glass, Inc., Tokyo, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 325 ; 65 64 ; 65 66 ; 65102 ; 264-27 ;
Abstract
The invention provides a method of manufacturing extremely precise glass optical element by thermally deforming optical glass on the optical surf ace of a thermal processing jig coated with chemically stable thin film, followed by the molding of optical glass preform having free surf ace on one side and transcribed surface from the optical surface of the thermal processing jig by means of a press mold which thermally presses the optical glass preform.