Method of enhancing the contrast of images and materials therefo

Details Method of enhancing the contrast of images and materials therefo Method of enhancing the contrast of images and materials therefo

1985-05-17

1987-10-27

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Forming nonplanar surface

430273, 430333, 430339, 430327, 430326, 430 5, 430928, 430343, 430517, G03C 500

Patent

active

047029960

ABSTRACT:
The image of an object with opaque and transparent regions having a contrast lens than the contrast threshold of a layer of photoresist when light of a predetermined wavelength to which the photoresist is sensitive is passed through the object and onto the layer of photoresist is enhanced in contrast by the provision of a contrast enhancing layer contiguous to the surface of the photoresist to a value above the contrast threshold of the photoresist. The contrast enhancing layer is constituted of an aryl nitrone compound mixed with a suitable binder.

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patent: 3449103 (1969-06-01), Stookey
patent: 3511653 (1970-05-01), Wiebe
patent: 3703388 (1972-11-01), Araujo et al.
patent: 3965273 (1976-06-01), Duinker et al.
patent: 4025191 (1977-05-01), Seward, III
patent: 4276369 (1986-02-01), Tsuda et al.
H. J. Zweig, "Nonlinear Filter", IBM Technical Disclosure Bulletin, vol. 8, No. 7, Dec. 1965, p. 980.
Sam H. Kaplan, "Control of Fluorescent Screen Dot Size for Color TV", Society of Motion Picture and Television Engineers, vol. 65, No. 8, Aug. 1956, pp. 407-410.

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