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. 11, 1993
Filed:
Oct. 03, 1991
Applicant:
Inventors:
Tsuyoshi Matsumoto, Atsugi, JP;
Reiko Watanabe, Kani, JP;
Shin Eguchi, Isehara, JP;
Hirokazu Aritake, Isehara, JP;
Takashi Morihara, Kawasaki, JP;
Fumio Yamagishi, Ebina, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
359 13 ; 359 14 ; 359 24 ; 359630 ;
Abstract
A heads-up display including a holographic optical element which reflects only at least one specific wavelength and allows a background light of other wavelengths to pass therethrough, an information source which emits information light having the specific wavelength, and a device for removing a wavelength of light corresponding to a complementary color of the specific wavelength.