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. 29, 2012
Filed:
May. 29, 2007
Alok Govil, Santa Clara, CA (US);
Remus Lucian Albu, Forest Hills, NY (US);
Alok Govil, Santa Clara, CA (US);
Remus Lucian Albu, Forest Hills, NY (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An electroholographic display system () includes: a coherent light source (); a spatial light modulator (SLM) () that modulates a coherent collimated light beam; and a processor and driver unit () that generates hologram data and applies appropriate voltages to the pixels of the SLM to modulate the coherent collimated light beam with the hologram data and to suppress a zeroth order component of the modulated light beam at an image plane where the holographic image is reproduced. The processor and driver unit suppresses the zeroth order component of the modulated light beam by selecting the voltages to apply to the pixels of the SLM to cause a first group of pixels to provide a phase shift of 180 degrees to first portions of the collimated light beam with respect to portions of the collimated light beam modulated by a second group of pixels.