Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AUGMENTED-REALITY OPTICAL DEVICE HAVING IMPROVED OPTICAL EFFICIENCY
Document Type and Number:
WIPO Patent Application WO/2021/054727
Kind Code:
A1
Abstract:
The present invention provides an augmented-reality optical device having improved optical efficiency, the optical device comprising: a reflection means for reflecting and delivering augmented-reality image light toward pupils of the user's eyes, thereby providing the user with an augmented-reality image, the augmented-reality image light being image light corresponding to an augmented-reality image emitted from an image emitting unit; and an optical means in which the reflection means is buried and disposed, the optical means transmitting at least a part of actual object image light toward pupils of the user's eyes, the actual object image light being image light emitted from an actual object. The optical means comprises: a first surface for emitting the augmented-reality image light reflected by the reflection means and at least a part of the actual object image light toward pupils of the user's eyes; and a second surface facing the first surface such that the actual object image light is input thereto. The reflection means comprises multiple reflection units having a size of 4mm or less, buried and disposed inside the optical means, so as to reflect the augmented-reality image light delivered to the reflection means and to deliver same to the user's pupils, respectively. At least two of the multiple reflection units are disposed closer to the second surface of the optical means as the distance from the image emitting unit increases.

Inventors:
HA JEONG HUN (KR)
Application Number:
PCT/KR2020/012518
Publication Date:
March 25, 2021
Filing Date:
September 16, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
LETINAR CO LTD (KR)
International Classes:
G02B27/01; G02B5/08
Foreign References:
JP2019109435A2019-07-04
KR20180028339A2018-03-16
JP2018041096A2018-03-15
JP2017044853A2017-03-02
US20180149869A12018-05-31
Attorney, Agent or Firm:
MI PATENT AND LAW FIRM (KR)
Download PDF: