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. 01, 2020
Filed:
Feb. 16, 2017
Applicant:
Cambridge Enterprise Limited, Cambridge, GB;
Inventors:
Daping Chu, Cambridge, GB;
Brian Robertson, Cambridge, GB;
Assignee:
Cambridge Enterprise Limited, Cambridge, GB;
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/29 (2006.01); G02B 26/00 (2006.01); G02F 1/03 (2006.01); G02F 1/09 (2006.01); G02B 27/10 (2006.01); H04Q 11/00 (2006.01); B82Y 20/00 (2011.01); G02F 1/07 (2006.01); H04J 14/02 (2006.01); G02B 6/35 (2006.01); G02F 1/31 (2006.01); G02B 27/01 (2006.01); G02B 27/09 (2006.01); G02B 5/18 (2006.01); G02B 5/32 (2006.01); G02B 5/20 (2006.01); G02F 1/1362 (2006.01); G02B 1/11 (2015.01); G02F 1/137 (2006.01);
U.S. Cl.
CPC ...
H04Q 11/0005 (2013.01); B82Y 20/00 (2013.01); G02B 6/3512 (2013.01); G02B 6/3524 (2013.01); G02B 6/3534 (2013.01); G02B 6/3592 (2013.01); G02F 1/03 (2013.01); G02F 1/0338 (2013.01); G02F 1/07 (2013.01); G02F 1/292 (2013.01); G02F 1/293 (2013.01); G02F 1/31 (2013.01); H04J 14/0212 (2013.01); H04J 14/0221 (2013.01); G02B 1/11 (2013.01); G02B 5/1828 (2013.01); G02B 5/1861 (2013.01); G02B 5/203 (2013.01); G02B 5/32 (2013.01); G02B 27/0172 (2013.01); G02B 27/0927 (2013.01); G02B 27/0944 (2013.01); G02F 1/136277 (2013.01); G02F 2001/13793 (2013.01); G02F 2201/12 (2013.01); G02F 2201/38 (2013.01); G02F 2203/06 (2013.01); H04Q 2011/0016 (2013.01); H04Q 2011/0024 (2013.01); H04Q 2011/0035 (2013.01);
Abstract
Methods and devices for manipulating optical signals. In one example, a LCOS (liquid crystal on silicon) device includes a surface bearing an anti-reflection structure. The anti-reflection structure includes i) a physical surface having a topography with features having lateral dimensions of less than 2000 nm and having an average refraction index which decreases with distance away from the surface; and ii) a configuration of the topography, averaged over lateral dimensions of greater than 2000 nm, varies with lateral position on the surface.