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:
Mar. 24, 2015
Filed:
May. 13, 2013
Applicant:
Laser Light Engines, Inc., Salem, NH (US);
Inventors:
John O'Hara, Andover, MA (US);
John Arntsen, Manchester-by-the-Sea, MA (US);
Barret Lippey, Belmont, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/35 (2006.01); H01S 3/10 (2006.01); G02B 27/48 (2006.01); H01S 3/23 (2006.01); H01S 3/30 (2006.01); H04N 9/31 (2006.01); H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
G02F 1/353 (2013.01); G02B 27/48 (2013.01); H01S 3/2383 (2013.01); H01S 3/302 (2013.01); H01S 3/005 (2013.01); H04N 9/3161 (2013.01); H01S 2301/02 (2013.01); H01S 3/2391 (2013.01);
Abstract
An apparatus and method for despeckling that includes a green laser diode assembly, a pulsed laser with a repetition rate of less than 100 kHz, and stimulated Raman scattering light formed in an optical fiber. The laser diode light and stimulated Raman scattering light are combined to form a projected digital image. The green laser diode assembly or the pulsed laser is switched to improve the bit depth of the projected digital image.