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:
May. 12, 2015
Filed:
Dec. 23, 2012
William P. Kuhn, Tucson, AZ (US);
John C. Stover, Tucson, AZ (US);
Robert S. Lecompte, Tucson, AZ (US);
William P. Kuhn, Tucson, AZ (US);
John C. Stover, Tucson, AZ (US);
Robert S. LeCompte, Tucson, AZ (US);
William P. Kuhn, Ph.D., LLC, Tucson, AZ (US);
Abstract
A device and method for subaperture stray light detection and diagnosis. A test light beam is generated. Stray light is detected. Based on the detected stray light, potential paths that light may have taken to arrive at the detection surface are determined. A testing device comprises a test light beam source whereby the cross sectional area of the test light beam is made less than the cross sectional area of the system aperture. A relative lateral positioning stage and an angular beam directing stage launch the test light beam into the aperture. A detector and a data processing system produce a data set relating the stray light to the location and directional angles of the test light beam to identify the sources of stray light. A light trap and test light beam delivery system are provided.