Diamondlike carbon thin film protected hologram and method of ma

Details Diamondlike carbon thin film protected hologram and method of ma Diamondlike carbon thin film protected hologram and method of ma

1992-01-30

1994-01-04

Lerner, Martin

Optical: systems and elements

Holographic system or element

Having particular recording medium

359 1, 359507, 428408, 427577, 430 1, G03H 102, G03H 104, B32B 900, B32B 3100

Patent

active

052765377

ABSTRACT:
A diamondlike carbon thin film protected hologram comprises an organic film deposited on a substrate and recorded to form a hologram, and a diamondlike carbon thin film deposited on the hologram, or first and second substrates having a diamondlike carbon thin film deposited thereon and an organic film having a holographic pattern recorded therein and sandwiched between the diamondlike carbon thin films of the first and second substrates. A method of fabricating a diamondlike carbon thin film protected hologram comprises forming a layer of dichromated gelatin on a substrate, recording the dichromated gelatin to form a hologram, and depositing on the hologram a diamondlike carbon thin film at room temperature, or depositing a diamondlike carbon thin film on first and second substrates, forming a layer of dichromated gelatin on the thin film of one of the substrates, recording the layer to form a hologram, and adhering the thin film of the second substrate to the hologram. The diamondlike carbon thin film protected hologram of the present invention is impervious to moisture and humidity and other environmental conditions which would otherwise negatively affect the performance of the hologram.

REFERENCES:
patent: 4329409 (1982-05-01), Wreede et al.
patent: 4330604 (1982-05-01), Wreede et al.
patent: 4698256 (1987-10-01), Giglia et al.
patent: 5082359 (1992-01-01), Kirkpatrick
patent: 5135808 (1992-08-01), Kimock et al.

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