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:
Feb. 20, 1990
Filed:
Jun. 30, 1986
Applicant:
Inventors:
Shigeru Okabayashi, Yokohama, JP;
Junichi Fukano, Yokohama, JP;
Assignee:
Nissan Motor Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G03H / ;
U.S. Cl.
CPC ...
350-37 ; 350-386 ; 350344 ; 350174 ;
Abstract
A head-up display system employs a transparent hologram built into the vehicular windshield. A scanning beam is used to scan the hologram, and its luminosity is turned on and off to illuminate points making up images. Such head-up display system is compact enough to enable practical installation on a vehicle.