DISPLAY LENS MANUFACTURING APPARATUS AND METHOD, AND HEAD-MOUNTED DISPLAY DEVICE COMPRISING DISPLAY LENS MANUFACTURED THEREBY

Title:

DISPLAY LENS MANUFACTURING APPARATUS AND METHOD, AND HEAD-MOUNTED DISPLAY DEVICE COMPRISING DISPLAY LENS MANUFACTURED THEREBY

Document Type and Number:

WIPO Patent Application WO/2021/060828

Kind Code:

A1

Abstract:

According to aspects of the present invention, provided are a display lens manufacturing apparatus comprising a holographic optical device for recording a hologram by irradiating a laser beam on a photosensitive base material formed by coating a base material with a photosensitive material, a display lens manufacturing method using same and a head-mounted display device comprising a display lens manufactured thereby, the display lens manufacturing apparatus comprising: a first laser light incident unit for providing incidence of first laser light converging in the irradiation direction on one surface of the photosensitive base material; and a second laser light incident unit for providing incidence of second laser light diverging at multiple points in the irradiation direction on the other surface of the photosensitive base material.

Inventors:

KIM JAE JIN (KR)
KIM BYUNG MOOK (KR)
SEO DAE HAN (KR)
SONG MIN SOO (KR)
SHIN BU GON (KR)

Application Number:

PCT/KR2020/012863

Publication Date:

April 01, 2021

Filing Date:

September 23, 2020

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

G02B3/00; G02B5/32; G02B27/01

Foreign References:

KR20160066942A	2016-06-13
KR20080037179A	2008-04-30
US20170299869A1	2017-10-19
KR100971465B1	2010-07-26
KR20150136601A	2015-12-07
KR20190120075A	2019-10-23

Other References: