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.

Date of Patent:
Jul. 28, 2026

Filed:

Aug. 23, 2024
Applicant:

Kla Corporation, Milpitas, CA (US);

Inventor:

Florian Melsheimer, Cologne, DE;

Assignee:

KLA Corporation, Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/42 (2006.01); G02B 27/09 (2006.01); G03F 7/00 (2006.01);
U.S. Cl.
CPC ...
G01J 1/429 (2013.01); G02B 27/0927 (2013.01); G02B 27/0944 (2013.01); G02B 27/0983 (2013.01); G03F 7/70158 (2013.01); G03F 7/702 (2013.01); G03F 7/70575 (2013.01); G03F 7/7085 (2013.01);
Abstract

An illumination system may include an optical homogenizer to homogenize a beam of light and a grating positioned in a path for the homogenized beam of light, to diffract light from the homogenized beam. The illumination system also includes a detector to receive light diffracted by the grating and to measure a power of the received light. The grating is disposed, for example, on an inner surface of the optical homogenizer or on a surface of a focusing mirror. Alternatively, the grating is disposed on the surface of the focusing mirror and the optical homogenizer is omitted from the illumination system.


Find Patent Forward Citations

Melsheimer, Florian. (2026). Diffraction-based illumination sampling (U.S. Patent No. 12693155). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12693155

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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