Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Readily visible image formation
Patent
1996-09-18
1999-09-28
McPherson, John A.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Readily visible image formation
430320, 430321, 264 25, 264106, 428 641, 428 644, G11B 726, G11B 724, G03F 700
Patent
active
059586516
ABSTRACT:
Artwork is imparted to plastic discs such as CDs, CD ROMs, and DVDs (digital video discs) by exposing a layer of photoresist material on a substrate to light from an original image of the artwork. The material of the photoresist layer is exposed to different depths by different intensity light from different image regions. Where the image is dark, the exposure is to relatively shallow, random depths. Where the image is light, the full thickness of the photoresist layer is exposed. Development of the photoresist layer removes the exposed photoresist material. The surface features of the developed photoresist layer and any uncovered substrate are transferred to a member used in forming a surface of the plastic disc, thereby visibly embossing the image in the disc.
REFERENCES:
patent: 3689078 (1972-09-01), Ban
patent: 4118287 (1978-10-01), Dewallens
patent: 4144300 (1979-03-01), Breeden
patent: 4254544 (1981-03-01), Barker
patent: 4629668 (1986-12-01), Hamersley et al.
patent: 4967286 (1990-10-01), Nomula et al.
patent: 4972404 (1990-11-01), Yamaguchi et al.
patent: 5068846 (1991-11-01), Kramer
patent: 5138604 (1992-08-01), Umeda et al.
patent: 5398231 (1995-03-01), Shin et al.
patent: 5452282 (1995-09-01), Abraham
patent: 5470627 (1995-11-01), Lee et al.
patent: 5607188 (1997-07-01), Bahns et al.
patent: 5671205 (1997-09-01), Ledieu
F. Vizard, "Video's New Look", Popular Mechanics, May 1995, p. 32.
Parette John Joseph
Pierzga John F.
van Hoof Peter
Arons Edward M.
Jackson Robert R.
McPherson John A.
WEA Manufacturing Inc.
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