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:
May. 04, 1999
Filed:
Oct. 11, 1996
Applicant:
Inventors:
Mutsuhiro Yamanaka, Osaka, JP;
Masahiro Nishio, Ikoma, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
359638 ; 359832 ; 359833 ; 359900 ;
Abstract
An assembly method of an air gap prism which has an air gap between a first glass member and a second glass member, the assembly method having steps of setting a first glass member on a positioning member, setting a sheet member on the positioning member so as to cover the first glass member, setting a second glass member on the first glass member covered with the sheet member so as to sandwich the sheet member between the first glass member and the second glass member, and cutting a portion of the sheet member protruding from the first glass member and the second glass member.