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:
Oct. 22, 2002
Filed:
Nov. 16, 2000
Khalid Shahzad, Ossining, NY (US);
Jeffrey A. Shimizu, Cortlandt Manor, NY (US);
John Domm, Ossining, NY (US);
Abstract
An optical illumination apparatus includes an illumination source, a pair of spaced integrator plates each having a plurality of lenslets, a conduit array, having a respective aperture corresponding to a plurality of the lenslets disposed there between, with non-reflective optically absorptive walls, and a relay optical structure for integrating light emitted from said second array of lenslets on a focal plane. The apparatus is employed by illuminating a first integrator plate having lenslets, subject to spatial intensity variations, segregating light from each respective lenslet with an elongated baffle, having a respective aperture for each of a plurality of respective lenslets, capturing light from each aperture with a second integrator plate having lenslets, and relaying the light to a focal plane, whereby light rays impinging on the walls of the elongated baffle are not transmitted through the aperture, thus substantially attenuating light rays having acute angles, to uniformly illuminate the focal plane.