Title:
COLOR HOLOGRAM PRINTING METHOD AND DEVICE USING HOLOGRAM MEDIUM LIGHT EFFICIENCY MAP
Document Type and Number:
WIPO Patent Application WO/2022/118997
Kind Code:
A1
Abstract:
Provided are a color hologram printing method and device using a hologram medium light efficiency map. In the hologram printing method according to an embodiment of the present invention, a laser is radiated on a hologram medium, an image of a light diffracted in the hologram medium is obtained, a light efficiency map of the hologram medium is created by means of the obtained image, and hogels are recorded in the hologram medium with reference to the created light efficiency maps of the hologram medium. Therefore, uniformity of the brightness and color of a hologram printing result can be enhanced by adjusting the intensity of the laser for each wavelength for each hogel during the hologram printing, by means of light efficiency measurements of each hogel area.
Inventors:
HONG SUNG HEE (KR)
KIM YOUNG MIN (KR)
HONG JI SOO (KR)
JEONG JIN SOO (KR)
KIM YOUNG MIN (KR)
HONG JI SOO (KR)
JEONG JIN SOO (KR)
Application Number:
PCT/KR2020/017425
Publication Date:
June 09, 2022
Filing Date:
December 02, 2020
Export Citation:
Assignee:
KOREA ELECTRONICS TECHNOLOGY (KR)
International Classes:
G03H1/04
Foreign References:
| KR20140077276A | 2014-06-24 | |||
| JP2004239834A | 2004-08-26 | |||
| KR20140027813A | 2014-03-07 | |||
| KR20160051377A | 2016-05-11 | |||
| KR20140115168A | 2014-09-30 |
Attorney, Agent or Firm:
NAM, Choong Woo (KR)
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