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:
Jul. 08, 2025
Filed:
Feb. 22, 2024
Applicant:
Ii-vi Delaware, Inc., Wilmington, DE (US);
Inventors:
Assignee:
II-VI DELAWARE, INC., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 5/18 (2006.01); G02B 27/00 (2006.01); G02F 1/1343 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133504 (2013.01); G02B 5/1819 (2013.01); G02B 27/0037 (2013.01); G02F 1/133553 (2013.01); G02F 1/13356 (2021.01); G02F 1/13439 (2013.01);
Abstract
A spatial light modulator () comprises a liquid crystal material (), first and second electrodes () disposed on opposing sides of the liquid crystal material (), and a diffractive optical element () disposed between the electrodes () and extending laterally across the modulator (). The diffractive optical element () comprises an array of diffracting formations () formed from sub-wavelength structures. The array of diffracting formations () defines a phase profile adapted to modify the incident wavefront of light reflected off the second electrode and to apply a position-dependent wavefront correction to the incident wavefront of light.