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:
Aug. 14, 2018
Filed:
Dec. 23, 2013
Applicant:
Laser Light Engines, Inc., Salem, NH (US);
Inventors:
Barret Lippey, Belmont, MA (US);
Ian Turner, Stratham, NH (US);
William Beck, Salem, NH (US);
Katherine Snell, Nashua, NH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/35 (2006.01); G02F 2/02 (2006.01); G02B 27/48 (2006.01); H01S 3/23 (2006.01); H01S 3/30 (2006.01); H04N 9/31 (2006.01); G02F 1/37 (2006.01); H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
G02F 1/35 (2013.01); G02B 27/48 (2013.01); G02F 1/37 (2013.01); H01S 3/2383 (2013.01); H01S 3/30 (2013.01); H01S 3/302 (2013.01); H04N 9/3161 (2013.01); H01S 3/005 (2013.01); H01S 2301/02 (2013.01);
Abstract
An apparatus and method that reduces laser speckle by using stimulated Raman scattering in an optical fiber. The fiber core diameter and length are selected to achieve a desired output color. An adjustable despeckler is formed by combining two optical fibers in parallel and adjusting the amount of light in each path.