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Patent Searching and Data


Title:
HOLOGRAPHIC OPTICAL DEVICE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/066391
Kind Code:
A1
Abstract:
Provided in one embodiment of the present invention is a method for manufacturing a holographic optical device having a holographic grid, the method comprising the steps of: (a) applying a photosensitive resin to one surface of a substrate so as to form a photosensitive substrate; and (b) emitting lasers at each of one surface and the other surface of the photosensitive substrate so as to record a holographic grid, wherein, in step (a), the photosensitive resin is applied so that the height of an application layer of the photosensitive resin varies according to a predetermined direction. [Representative drawing] figure 4

Inventors:
KIM SUNG YEON (KR)
SONG MIN SOO (KR)
CHOO SO YOUNG (KR)
HWANG HYE WON (KR)
Application Number:
PCT/KR2020/012990
Publication Date:
April 08, 2021
Filing Date:
September 24, 2020
Export Citation:
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Assignee:
LG CHEMICAL LTD (KR)
International Classes:
G02B5/32; G03H1/02
Foreign References:
JPH10253955A1998-09-25
US5784507A1998-07-21
JP2000510603A2000-08-15
US8519325B12013-08-27
US4475792A1984-10-09
Attorney, Agent or Firm:
PCR INTELLECTUAL PROPERTY LAW FIRM (KR)
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