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:
Jan. 04, 1994
Filed:
Apr. 02, 1991
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; G02F / ; G03B / ;
U.S. Cl.
CPC ...
359 40 ; 359 36 ; 359454 ; 359620 ; 359642 ;
Abstract
An array of optical microelements is produced by press molding, at a high temperature, a transparent glass with a press mold which has a molding surface formed into a shape corresponding to the optical microelement array and coated with a chemically stable thin film.