US 11,656,511 B2
Laser damage hardening of light modulator components for use with high optical fluence systems
Francis L. Leard, Sudbury, MA (US); James A. DeMuth, Woburn, MA (US); Andrew J. Bayramian, Marblehead, MA (US); Drew W. Kissinger, Carlisle, MA (US); Ning Duanmu, Nashua, NH (US); and Kourosh Kamshad, Hudson, NH (US)
Assigned to Seurat Technologies, Inc., Wilmington, MA (US)
Filed by Seurat Technologies, Inc., Wilmington, MA (US)
Filed on Oct. 20, 2021, as Appl. No. 17/506,349.
Claims priority of provisional application 63/105,066, filed on Oct. 23, 2020.
Prior Publication US 2022/0128848 A1, Apr. 28, 2022
Int. Cl. G02F 1/135 (2006.01); G02F 1/1333 (2006.01)
CPC G02F 1/1355 (2021.01) [G02F 1/1352 (2021.01); G02F 1/133385 (2013.01); G02F 2202/12 (2013.01); G02F 2203/02 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A light modulator, comprising:
first and second transparent conductive oxide layers;
a photoconductive layer positioned between the first and a second transparent conductive oxide layers, the photoconductive layer having main impurities of less than 5.0% and general impurities of less than 1.0%; and
an electro-optical layer positioned in contact with the photoconductive layer.