High resolution recording medium

Details High resolution recording medium High resolution recording medium

1981-01-30

1984-02-14

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

350166, 428210, 428432, 428433, 428457, 428469, 428471, 428472, 428699, 428701, 428913, 3461351, 430 5, 430320, 430321, 430363, G01D 1534, G02B 528, B32B 310

Patent

active

044316950

ABSTRACT:
A multi-color, high density recording medium including a substrate having at least two patterned interference filters formed thereon is described. Each of the filters transmits a different wavelength range of visible light and each of the filters comprises an unpatterned interference layer of an inorganic material which is substantially absorption-free in the visible wavelength range of the spectrum. At least one of the interference filters formed on the substrate comprises a first, unpatterned reflecting layer positioned on one side of the respective interference layer, and a second, patterned reflecting layer positioned on the other side of the respective interference layer, such that the pattern of only the first reflecting layer forms the pattern of the at least one interference filter.

REFERENCES:
patent: 2721808 (1955-10-01), Roberts et al.
patent: 4029394 (1977-06-01), Araki
patent: 4151321 (1979-04-01), Heisinger
patent: 4219826 (1980-08-01), Bloom et al.
patent: 4262302 (1981-01-01), Benton et al.
patent: 4270132 (1981-05-01), Bell

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