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:
Sep. 08, 1992
Filed:
Feb. 26, 1991
Thomas W Dey, Springwater, NY (US);
Alan L Wertheimer, Pittsford, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A method suitable for determining large petal piston in a segmented imaging assembly. The assembly preferably comprises a polychromatic source of radiation that can output a polychromatic radiation beam; and, a segmented imaging system including petals comprising a reference component and a test component, which components can be used to form an imaged radiation beam. The method steps comprise intercepting preselected portions of the imaged radiation beam with a mask comprising two apertures, so that one aperture is dedicated to radiation imaged by the reference component, and the second aperture is dedicated to radiation imaged by the test component, thereby creating a real time masked image; and, interrogating an envelope and a fine structure spacing of the real time masked image, as a measure of the large petal piston of the segmented imaging system.