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. 05, 2017
Filed:
Apr. 08, 2014
Applicant:
Omnivision Technologies, Inc., Santa Clara, CA (US);
Inventor:
Yi-Wei Liu, New Taipei, TW;
Assignee:
OmniVision Technologies, Inc., Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G02B 27/48 (2006.01); G02B 3/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/48 (2013.01); G03B 21/208 (2013.01); G03B 21/2033 (2013.01); G02B 3/0006 (2013.01);
Abstract
A despeckle optical system for an image projector includes a diffuser, an in-plane vibrator, a microlens array, and a vibrator driver. The in-plane vibrator is coupled to vibrate the diffuser along a vibration plane. The vibrator driver is coupled to drive the in-plane vibrator and configured to drive the in-plane vibrator at different vibration amplitudes for averaging the intensity of speckle in display light that propagates through the diffuser via the microlens array.