Title:
HOGEL ALIGN DEVICE USING FLUORESCENT FILM AND WAVELENGTH FILTER
Document Type and Number:
WIPO Patent Application WO/2022/124434
Kind Code:
A1
Abstract:
Provided is a hogel align device using a fluorescent film and a wavelength filter. In the hogel align method according to an embodiment of the present invention, a signal light and a reference light are irradiated to a hogel region in a medium to which a fluorescent medium is added, the light emitted from the fluorescent medium is filtered, and an observation image is created by photographing the filtered light. As such, it is possible to address the difficulty with fine hogel alignment caused by the issue of the hogel region being unable to be observed clearly due to scattered light/noise, etc., and eventually it is possible to print high-resolution hogels such that the quality of a printed hologram can be enhanced.
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Inventors:
JEONG JIN SOO (KR)
HONG SUNG HEE (KR)
KIM YOUNG MIN (KR)
HONG JI SOO (KR)
HONG SUNG HEE (KR)
KIM YOUNG MIN (KR)
HONG JI SOO (KR)
Application Number:
PCT/KR2020/017819
Publication Date:
June 16, 2022
Filing Date:
December 08, 2020
Export Citation:
Assignee:
KOREA ELECTRONICS TECHNOLOGY (KR)
International Classes:
G03H1/04; G03H1/12
Foreign References:
| KR20140077276A | 2014-06-24 | |||
| JP2008052793A | 2008-03-06 | |||
| US20070242326A1 | 2007-10-18 | |||
| KR20170078142A | 2017-07-07 | |||
| JP2018137030A | 2018-08-30 |
Attorney, Agent or Firm:
NAM, Choong Woo (KR)
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