Hologram sheet and hologram observation sheet using same, and blinding device
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United States of America Patent
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Jan 27, 2015
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app pub date -
Jun 29, 2006
filing date -
Jul 4, 2005
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Abstract
A main object of the present invention is to provide a hologram observation sheet with a transmission type hologram formed integrally with other members, to be attached with various members for the use as for example an advertising medium or a decoration member. To achieve the object, the invention provides a hologram sheet comprising: a transparent substrate, a hologram layer formed on the transparent substrate and having a transmission type Fourier transform hologram region having the function of transforming a light beam incident from a point light source to a desired optical image, and a pressure-sensitive adhesive layer.
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