Title:
HOLOGRAPHIC PRINTING DEVICE AND METHOD USING MULTIPLE OPTICAL HEADS
Document Type and Number:
WIPO Patent Application WO/2022/118996
Kind Code:
A1
Abstract:
Provided are a holographic printing device and method using multiple optical heads. The holographic printing device according to an embodiment of the present invention comprises: a fringe pattern generation unit which generates a holographic fringe pattern, and segments the generated fringe pattern into hogels; a multiplexing unit which groups the hogels, segmented by the fringe pattern generation unit, according to area; and a plurality of optical heads which respectively receive the grouped hogels and record the respective hogels in the corresponding areas of a holographic medium. Accordingly, several hogels can be recorded on the holographic medium at a time using the multiple optical heads, thus reducing holographic printing time so that even large screen holograms can be printed at high speed.
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/KR2020/017424
Publication Date:
June 09, 2022
Filing Date:
December 02, 2020
Export Citation:
Assignee:
KOREA ELECTRONICS TECHNOLOGY (KR)
International Classes:
G03H1/04
Foreign References:
| KR20090095597A | 2009-09-09 | |||
| KR20120138228A | 2012-12-24 | |||
| JP2005017062A | 2005-01-20 | |||
| KR20190078211A | 2019-07-04 | |||
| KR20010041378A | 2001-05-15 |
Attorney, Agent or Firm:
NAM, Choong Woo (KR)
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