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:
Jun. 29, 1993
Filed:
May. 12, 1992
Applicant:
Inventors:
Tatsuo Itoh, Osaka, JP;
Shinichi Mizuguchi, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
359 17 ; 359 18 ; 359220 ;
Abstract
An optical scanning device which includes a laser light source, an aspheric lens for converging a laser beam emitted from the laser light source, and a reflection type holographic disk for diffracting and scanning the laser beam passing through the aspheric lens.