Title:
METHOD FOR MANUFACTURING OPTICAL DEVICE FOR AUGMENTED REALITY AND OPTICAL DEVICE FOR AUGMENTED REALITY, WHICH IS MANUFACTURED THEREBY
Document Type and Number:
WIPO Patent Application WO/2023/043055
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing an optical device for augmented reality and an optical device for augmented reality, which is manufactured thereby, wherein the method comprises: a first step of preparing a first plate material having a plurality of inclined surfaces on the upper surface thereof; a second step of depositing a reflective film on the entire upper surface of the first plate material; a third step of, by using a dispenser, attaching patterning materials to positions, at which reflective parts are to be formed, on the plurality of inclined surfaces and performing reflective part patterning; a fourth step of etching the first plate material to remove the reflective film on a portion except for the portions to which the reflective part patterning has been performed; a fifth step of removing the patterning materials from the portions to which the reflective part patterning has been performed, to expose the reflective parts; and a sixth step of coupling a second plate material to the first plate material.
Inventors:
HWANG YOUN HA (KR)
KIM JOO YOUNG (KR)
LEE SEOK HONG (KR)
KIM JOO YOUNG (KR)
LEE SEOK HONG (KR)
Application Number:
PCT/KR2022/011459
Publication Date:
March 23, 2023
Filing Date:
August 03, 2022
Export Citation:
Assignee:
LETINAR CO LTD (KR)
International Classes:
G02B27/01; B29D11/00; C03C17/00; C03C27/06; G02B5/08
Domestic Patent References:
| WO2021111447A1 | 2021-06-10 |
Foreign References:
| KR20190063442A | 2019-06-07 | |||
| KR20180059205A | 2018-06-04 | |||
| JP5256488B2 | 2013-08-07 | |||
| JP2018041096A | 2018-03-15 |
Attorney, Agent or Firm:
MI PATENT AND LAW FIRM (KR)
Download PDF: