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:
Nov. 02, 1999
Filed:
Sep. 03, 1997
Applicant:
Inventors:
Geoffrey Howard Blackham, Hassocks, GB;
Adam Richard Neale, New Haven, GB;
Assignee:
SEOS Display, Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
359618 ; 348758 ;
Abstract
Image display apparatus comprising projector means, a first modulator and a second modulator, the first and the second modulators being such as to modulate picture elements in an image whereby finite minimum image brightness above true black is reduced, and whereby the contrast range of the projected image is extended.
Blackham, Geoffrey. (1999). Image display apparatus with modulators for modulating picture elements (U.S. Patent No. 5978142). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5978142
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile