Method of duplicating a hologram comprising a step of preparing a master with a master hologram and hologram optical element
AssigneesUniversity of Central Florida Research Foundation, Inc., Goertek Inc.
InventorsJianghao Xiong, Tao Zhan, Kun Li, Shin-Tson Wu
Life of this patent
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Abstract
Here discloses a method for duplicating a hologram and a hologram optical element. The method comprises: preparing a master with a master hologram; preparing a sample with coated photoalignment material layer above the master; and irradiating a recording light through the sample to the master, so that at least one portion of the recording light is reflected by the master as an object light carrying the master hologram information, and so that the object light and the recording light are interfered at the photoalignment material layer to produce a duplicated hologram in the photoalignment material layer.
Claims13
A method for duplicating a hologram, comprising:
- preparing a master with a master hologram, wherein the master has a first substrate, a first photoalignment layer placed on the first substrate and a chiral-doped liquid crystal layer placed on the first photoalignment layer;
- preparing a sample coated with a second photoalignment material layer above the master, wherein the sample comprises a second substrate, and the second photoalignment material layer is coated on an upward side and/or downward side of the sample;
- and
- irradiating a recording light through the sample to the master, so that at least one portion of the recording light is reflected by the master as an object light carrying the master hologram information, and so that the object light and the recording light are interfered on the second photoalignment material layer to produce a duplicated hologram in the second photoalignment material layer.
Dependencies are inferred from the claim text.