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:
Sep. 04, 2007
Filed:
Oct. 06, 2003
Jonathan Rennie Hughes, Malvern, GB;
Stuart David Coomber, Malvern, GB;
Carl Vernon Brown, Nottingham, GB;
Alexander John Topping, Oxford, GB;
Jonathan Rennie Hughes, Malvern, GB;
Stuart David Coomber, Malvern, GB;
Carl Vernon Brown, Nottingham, GB;
Alexander John Topping, Oxford, GB;
Qinetiq Limited, London, GB;
Abstract
A method of controlling the switching of an optically addressable spatial light modulator (OASLM), to a first surface of which a write light signal is applied and to a second surface of which a read light signal is applied. The method comprises applying a bipolar switching waveform to control electrodes of the (OASLM) during each write cycle such that the leading pulse of the waveform applies a voltage across the (OASLM) which is in the photosensitive direction and the trailing pulse applies a voltage which is not in the photosensitive direction.