Holograms

Details Holograms Holograms

G - Physics

03

H

88/0.14

G03H 1/24 (2006.01)

Patent

CA 1264968

ABSTRACT OF THE DISCLOSURE This invention is predicated upon a particular set of components which may be grouped according to a number of permutations each of which has a specific application. A hologram viewing apparatus, an integral direct viewing hologram device and an article useful in the manufacture of hologram devices are provided by this invention. The hologram viewing apparatus comprises a housing enclosing a light source which illuminates a screen located in or on a wall of the housing, the screen consisting of at least a plane grating. The integral direct viewing hologram device comprises a venetian blind film having a hologram embossed on or bonded onto one surface and a plain grating embossed or bonded onto the other surface. The device can be direct viewed in white light and a multi-coloured image can be produced by the provision of a plurality of holo- grams which are made using different coloured light. The article useful in the manufacture of hologram devices comprises a vene- tian blind film embossed on one side with a plane grating.

421426

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