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:
Apr. 10, 2001
Filed:
Jul. 17, 1998
Applicant:
Inventors:
Guenter Abersfelder, Sindelfingen, DE;
Helmut Grantz, Sindelfingen, DE;
Thorsteinn Halldorsson, Munich, DE;
Horst Schmidt-Bischoffshausen, Neubiberg, DE;
Stefan Uhl, Stuttgart, DE;
Heinrich Alexander Eberl, Probstried, DE;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 ;
U.S. Cl.
CPC ...
G02F 1/1335 ;
Abstract
A method and apparatus for transmitting light, wherein a holographic video screen is used as part of an illuminating system. The tendency of such a video screen to backscatter light of certain wavelengths from a predefined direction into a certain solid angle area is utilized to generate holographic images at precisely defined angles. In ambient light, such a video screen need not appear black, or at least dark.