Hologram printing method and apparatus using mask
AssigneeKorea Electronics Technology Institute
InventorsSung Hee Hong, Young Min Kim, Ji Soo Hong, Jin Soo Jeong
Life of this patent
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Abstract
A method and an apparatus for printing a hologram by using a mask are provided. A method generates a hologram fringe pattern, splits the hologram fringe pattern on a hogel basis, generates the split hogels, masks a part of the generated hogel, and prints the masked hogel on a hologram medium. Accordingly, an empty space which occurs between hogels when a hologram is printed is prevented from being generated by using a mask, so that a fill factor can be effectively enhanced, and eventually, image quality of a hologram can be enhanced.
Claims11
A hologram printing method comprising:
- generating a hologram fringe pattern;
- splitting the hologram fringe pattern on a hogel basis;
- generating the split hogels using a light modulator including a spatial light modulator (SLM);
- masking a part of the generated hogel based on a result of using the light modulator after the light modulator is applied, wherein the masking comprises masking an edge portion except for a center portion of a hogel printing area;
- and
- printing the masked hogel on a hologram medium, using beams which are centrally collected and an intensity of which decreases toward edges.
A hologram printing apparatus comprising:
- a processor configured to:
- generate a hologram fringe pattern, and split the hologram fringe pattern on a hogel basis;
- generate the split hogels using a light modulator including a spatial light modulator (SLM);
- mask a part of the generated hogel based on a result of using the light modulator after the light modulator is applied, wherein, for the masking, the processor is configured to mask an edge portion except for a center portion of a hogel printing area;
- and
- print the masked hogel on a hologram medium, using beams which are centrally collected and an intensity of which decreases toward edges.
Dependencies are inferred from the claim text.