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:
May. 10, 2016
Filed:
Oct. 09, 2012
Applicant:
Astrium Limited, Stevenage, GB;
Inventors:
Stephen Sweeney, Stevenage, GB;
Yaping Zhang, Stevenage, GB;
Assignee:
ASTRIUM LIMITED, Hertfordshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/01 (2006.01); G02B 6/293 (2006.01); G01J 3/02 (2006.01);
U.S. Cl.
CPC ...
G02B 6/293 (2013.01); G01J 3/0205 (2013.01); G01J 3/0218 (2013.01); G01J 3/0259 (2013.01); G02B 6/29341 (2013.01);
Abstract
A structure for guiding electromagnetic radiation, including: a substrate; a waveguide provided on the substrate and having a first end for receiving electromagnetic radiation and a second end; and an anti-reflection region provided at the second end of the waveguide on the substrate, the length and the width of the anti-reflection region being optimized to suppress back reflection of radiation that reaches the second end.