Title:
OPTICAL DEVICE FOR AUGMENTED REALITY USING DIFFRACTIVE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/017923
Kind Code:
A1
Abstract:
The present invention provides an optical device for augmented reality using a diffractive element, the optical device comprising: a diffractive element that transmits a virtual image light emitted from an image output unit toward the pupil of a user's eye to provide a virtual image to the user and transmits a real object image light emitted from an object in the real world to the pupil of the user's eye; and an optical means in which the diffractive element is disposed and which transmits the real object image light emitted from the real object toward the pupil of the user's eye, wherein the optical means includes a first surface through which the virtual image light and the real object image light that are transmitted through the diffractive element are emitted toward the user's pupil, and a second surface opposite the first surface and onto which the real object image light is incident; and the diffractive element is buried inside between the first surface and the second surface of the optical means.
Inventors:
HA JEONG HUN (KR)
Application Number:
PCT/KR2021/019468
Publication Date:
February 16, 2023
Filing Date:
December 21, 2021
Export Citation:
Assignee:
LETINAR CO LTD (KR)
International Classes:
G02B27/01; G02B5/18; G02B5/32; G02B6/00
Foreign References:
| KR102192942B1 | 2020-12-18 | |||
| KR20180009130A | 2018-01-26 | |||
| KR20210031240A | 2021-03-19 | |||
| KR20200105669A | 2020-09-08 | |||
| KR20200006583A | 2020-01-20 |
Attorney, Agent or Firm:
MI PATENT AND LAW FIRM (KR)
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