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:
Aug. 03, 2004
Filed:
Jan. 03, 2002
Applicant:
Inventors:
Yasuhiro Mizutani, Inabe-gun, JP;
Kazunori Suzuki, Nagoya, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/32 ;
U.S. Cl.
CPC ...
G02B 5/32 ;
Abstract
A hologram screen is produced by using a transmission-type hologram film, permitting images to be seen from the side of the projector. The hologram screen has a transparent member and a hologram film stuck to the transparent member, and produces the image by projecting image-forming light from the projector. The hologram film is of the transmission-type. The hologram screen also has a reflector for reflecting the image-forming light arranged on the back surface side of the hologram film.