公开(公告)号：US20210191115A1

公开(公告)日：2021-06-24

申请号：US16719981

申请日：2019-12-19

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Seonkyu YOON ,  Sungkuk Chun ,  Kwanghoon Lee

IPC: G02B27/01 ,  G02B27/28 ,  G02B27/42

Abstract: An augmented reality device includes an image output unit disposed at a preset angle from a horizontal direction to output an augmented reality image of a preset polarization direction, a polarization reflection film reflecting light of the preset polarization direction and transmitting other light than the light of the preset polarization direction, and an optical component disposed on a light path of an image output from the image output unit. The optical component has a preset refractive index and a preset shape. The polarization reflection film is applied on a first surface of the optical component which is positioned farther away from the image output unit.

公开(公告)号：US20210003861A1

公开(公告)日：2021-01-07

申请号：US16719971

申请日：2019-12-18

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Kwanghoon LEE ,  Sungguk CHUN ,  Seonkyu YOON ,  SEON MAN KM

IPC: G02C7/02 ,  A61B3/117

Abstract: An optical modulator is disposed in front of an eye along a direction in which light enters the eye to modulate the properties of light depending on the degree of opacity of the eye.

公开(公告)号：US20200209443A1

公开(公告)日：2020-07-02

申请号：US16586978

申请日：2019-09-28

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Seonkyu YOON ,  Dongkil LEE ,  Kwanghoon LEE ,  Yanggyu KIM

IPC: G02B5/08 ,  G02B5/30 ,  G02B27/40 ,  G06K9/00 ,  G06T7/571 ,  G06F3/01 ,  G02B27/01

Abstract: A multi-focal optical device comprises an image output unit outputting optical information, a linear polarizer uni-directionally polarizing the optical information, a first light reflector including a first polarizer transmitting light only in a first direction and reflecting the light transmitted through the first polarizer, a second light reflector including a second polarizer transmitting light only in a second direction perpendicular to the first direction and reflecting the light transmitted through the second polarizer, a light splitter splitting the optical information transmitted through the linear polarizer into the first light reflector and the second light reflector and reflecting the optical information reflected by one of the first light reflector or the second light reflector to allow the reflected optical information to form one focus, and a controller configured to control the linear polarizer to vary a direction of polarization of the linear polarizer.