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:
Jul. 18, 1989
Filed:
Oct. 08, 1987
Applicant:
Inventors:
Kozo Yamazaki, Zama, JP;
Toshiyuki Ichikawa, Atsugi, JP;
Hiroyuki Ikeda, Yokohama, JP;
Takefumi Inagaki, Kawasaki, JP;
Hirokazu Aritake, Kawasaki, JP;
Fumio Yamagishi, Ebina, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350-371 ; 350-68 ;
Abstract
A laser beam scanner comprising a scanning window through which scanning beams are emitted, a plurality of hologram layers constituting the scanning window, and an optical system for impinging a laser beam on the hologram layers in a manner such that the trace of the laser beam scanning each hologram layer intersets that of the other hologram layers on the scanning window.