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:
Sep. 14, 1993
Filed:
May. 13, 1992
Applicant:
Inventors:
Hiroshi Kaneko, Sagamihara, JP;
Yutaka Yoshida, Tokyo, JP;
Ken Omura, Tokyo, JP;
Kimiaki Furukawa, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359896 ; 359218 ; 346108 ;
Abstract
This invention relates to a device and a method for securing optical elements to a housing. The optical elements such as a tertiary lens, a fourth lens, a reflecting mirror, and a filter glass are received in the housing and bonded to the same by means of a visible ray hardening type bonding agent. A maximum bonding strength can be obtained by setting the bonding agent to have a thickness of 10-100 .mu.m and a hardness of 80 or less on the A-scale based on the Shore hardness test. Further, much time is not required for hardening the bonding agent.