Holograms

Radiation imagery chemistry: process – composition – or product th – Holographic process – composition – or product

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430 2, 430290, 350 361, 350 36, G03H 102, G03C 516, G03C 173

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active

049701290

ABSTRACT:
Volume phase holograms and other holographic elements are disclosed which include microscopic areas of a material having an index of refraction different from that of the holographic fringes.

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