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:
Apr. 04, 2023
Filed:
Oct. 07, 2019
Lumentum Operations Llc, Milpitas, CA (US);
John Michael Miller, Gatineau, CA;
Joel Milgram, Ottawa, CA;
Karen Denise Hendrix, Santa Rosa, CA (US);
Michael O'Leary, San Jose, CA (US);
Hery Djie, San Jose, CA (US);
Lu Tian, Palo Alto, CA (US);
Paul Colbourne, Ottawa, CA;
Lumentum Operations LLC, San Jose, CA (US);
Abstract
A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.