Recording blank and method for fabricating therefrom diffractive

Details Recording blank and method for fabricating therefrom diffractive Recording blank and method for fabricating therefrom diffractive

1979-06-25

1982-10-12

Lee, John D.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Physical developing

350311, 350320, 430321, 430323, 430325, G02B 518

Patent

active

043536220

ABSTRACT:
The recording blank comprises a substrate having a non-etchable surface which incorporates a given surface relief pattern diffractive structure, an etchable metal overcoating in contact with the diffractive structure which overcoating has a smooth exterior surface, and a photoresist layer in contact with this smooth exterior surface. This permits a simple technique to be employed in fabricating a high quality embossing master.

REFERENCES:
patent: 3743507 (1973-07-01), Ih et al.
patent: 3832176 (1974-08-01), Verstraete et al.
patent: 3957354 (1976-05-01), Knop
patent: 4062628 (1977-12-01), Gale
patent: 4108660 (1978-08-01), Gale et al.
patent: 4227769 (1980-10-01), Phillips et al.
patent: 4259433 (1981-03-01), Mizobuchi et al.
patent: 4288510 (1981-09-01), Tinet et al.

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