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:
Dec. 29, 2020
Filed:
Oct. 31, 2019
Christie Digital Systems Usa, Inc., Cypress, CA (US);
Michael Perkins, Kitchener, CA;
David Kiers, Kitchener, CA;
CHRISTIE DIGITAL SYSTEMS USA, INC., Cypress, CA (US);
Abstract
A device, system and method for modulating light using a phase light modulator (PLM) and a spatial light modulator (SLM). A device determines a target-destination wave, representative of an image, to be formed at an image plane of the PLM using image data, defining the image for projection, and a random seeding of spatial values of a spatially varying phase of the target-destination wave at the image plane, the image plane located between the PLM and SLM, the SLM and PLM arranged such that light reflected from the PLM illuminates the SLM. The device determines a target-source wave to be formed at the PLM, based on: a free space transfer function between the PLM and the image plane; and the target-destination wave. The device determines, from the target-source wave, a phase map for controlling the PLM to form the image. The device controls the PLM using the phase map.