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.:

US 7330250 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 12, 2008

Filed:

May. 18, 2004
Applicants:

Tung Say Gip, San Jose, CA (US);

Reinhold Garbe, San Jose, CA (US);

Quoc Nguyen, San Jose, CA (US);

Inventors:

Tung Say Gip, San Jose, CA (US);

Reinhold Garbe, San Jose, CA (US);

Quoc Nguyen, San Jose, CA (US);

Assignee:

Agilent Technologies, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/88 (2006.01);
U.S. Cl.
CPC ...
Abstract

A non-destructive process for evaluating subsurface damage in an optical element focuses a microscope at points within the optical element and measures the intensity of reflected light. In one embodiment, a microscope focus a laser beam at a measurement point with the optical element and also collects reflected or scattered light from damage in the optical element. Analysis of data indicating the reflected intensities for a three-dimensional array of points within the optical element can determine the location and severity of the subsurface damage.


Find Patent Forward Citations

Gip, Tung. (2008). Nondestructive evaluation of subsurface damage in optical elements (U.S. Patent No. 7330250). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7330250

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