Corning Incorporated

Corning Glass Works

Robert H Bellman

Nicholas Francis Borrelli

David L Morse

Paul Arthur Sachenik

Bruce Herbert Raeder

There is disclosed an optical element having a pattern of raised optical elements integral with a surface thereof, and a metal coating selectively covering the surface intermediate the optical elements to form a mask optically isolating the elements. Several methods of producing such metal coating are disclosed that employ conventional photoresist materials and means of applying and removing such materials. Also, a modified element, that is adapted to use in a liquid crystal display device, and methods of producing such modified element are disclosed.

Integral optical element and method

An optical apparatus for focusing at least one image and optionally only one image of an object, said apparatus comprising a receiving surface and an optical imaging device between the image and the object to form an image of the object on the receiving surface. The imaging device comprising at least one glass body, at least a portion of which is a photonucleated opacified glass. The body has opposed surfaces, at least one of the surfaces having raised light focusing transparent optical pattern portions integral therewith and transparent channels connecting the raised transparent pattern portions to the surface opposed to the surface containing the pattern. The invention further comprises a method for focusing an image of an object on a receiving surface which comprises interposing an optical imaging device between the object and the surface to form an image of the object on the surface, said optical imaging device comprising a glass body at least a portion of which is a photonucleated opacified glass, said body having opposed surfaces, at least one of the surfaces having light focusing raised transparent optical pattern portions integral therewith, and transparent channels connecting said raised pattern portions to the surface opposed to the surface containing said pattern.

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Catlin, NY, United States of America

Robert H Bellman