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A manufacturing method of a combined binary phase hologram and a security search device using the hologram
A manufacturing method of a combined binary phase hologram and a security search device using the hologram
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机译：组合二元相全息图的制造方法和使用该全息图的安全性搜索装置
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摘要
The present invention relates to a manufacturing method of a combined binary phase hologram and a security searching apparatus using the same, and more particularly, to a combined binary phase hologram combining a predetermined number of binary phase holograms to form a multi-phase hologram, Since a predetermined number of binary phase holograms having a phase of 0 and a second relative phase defined at predetermined intervals are accurately in close contact with each other and have a characteristic of a multiphase hologram having a predetermined number of phases, It is possible to perform a search in real time using light, thereby enabling a stable and fast security search device.
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