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. 25, 2021
Filed:
Jul. 19, 2018
Applicant:
Lumentum Operations Llc, Milpitas, CA (US);
Inventors:
John Michael Miller, Ottawa, CA;
Stephen Bagnald, Ottawa, CA;
Assignee:
Lumentum Operations LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/18 (2006.01); G02B 1/118 (2015.01); G02B 27/42 (2006.01);
U.S. Cl.
CPC ...
G02B 5/1809 (2013.01); G02B 1/118 (2013.01); G02B 5/1819 (2013.01); G02B 5/1866 (2013.01); G02B 27/4205 (2013.01);
Abstract
A diffractive optical element may include sub-wavelength period stack-and-gap structured layers providing transmissive phase delay at a wavelength. The sub-wavelength period stack-and-gap structured layers may include a set of thin anti-reflection layers that are index matched to an environment or a substrate over a range of fill factors of the sub-wavelength period.