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:
Mar. 14, 2023
Filed:
May. 13, 2020
Applicant:
Hrl Laboratories, Llc, Malibu, CA (US);
Inventors:
Shuoqin Wang, Oak Park, CA (US);
Joseph Nedy, Santa Monica, CA (US);
Brett Z. Nosho, Santa Monica, CA (US);
Minh B. Nguyen, Thousand Oaks, CA (US);
Assignee:
HRL LABORATORIES, LLC, Malibu, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/14 (2006.01); G02B 5/20 (2006.01); G02B 5/28 (2006.01); G01J 3/12 (2006.01); G01J 3/28 (2006.01); G01J 3/02 (2006.01); G02B 1/115 (2015.01);
U.S. Cl.
CPC ...
G01J 3/2823 (2013.01); G01J 3/0208 (2013.01); G01J 3/14 (2013.01); G02B 1/115 (2013.01); G02B 5/207 (2013.01); G02B 5/284 (2013.01); G01J 2003/1213 (2013.01);
Abstract
A hyperspectral imager (HSI) includes a first thin film filter, the first thin film filter including a first quarter wave mirror, a second quarter wave mirror, and a low-refractive-index wedge between the first quarter wave mirror and the second quarter wave mirror. The low-refractive-index wedge has a height dimension such that a distance between the first quarter wave mirror and the second quarter wave mirror increases linearly along a length of the low-refractive-index wedge.