公开(公告)号：WO2023075291A1

公开(公告)日：2023-05-04

申请号：PCT/KR2022/016037

申请日：2022-10-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： MALYSHEV, Ilia Valer'evich ,  DANILOVA, Svetlana Vladimirovna ,  PISKUNOV, Dmitriy Evgenyevich ,  SHTYKOV, Stanislav Aleksandrovich ,  POPOV, Mikhail Vyacheslavovich ,  ASPIDOV, Alexander Alekseyevich

IPC: H04N13/363 ,  G03B21/14 ,  G03B21/20 ,  G02B6/293 ,  G02B26/08

Abstract: The disclosure refers to devices forming mid-air images in free space. The device comprises a projection optical system; a waveguide comprising a first in-coupling diffractive optical element, a second in-coupling diffractive optical element; an out-coupling diffractive optical element; an optical element with a positive optical power. The projection optical system comprises: an image projector, an optical transfer unit, an intermediate image area, a projection unit. When using the invention, the user observes a real image in a large field of view.

公开(公告)号：WO2022119396A1

公开(公告)日：2022-06-09

申请号：PCT/KR2021/018265

申请日：2021-12-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： BORISOV, Vladimir Nikolayevich ,  DANILOVA, Svetlana Vladimirovna ,  MALYSHEV, Ilia Valer'evich ,  MURAVEV, Nikolay Victorovich ,  POPOV, Mikhail Vyacheslavovich ,  SHTYKOV, Stanislav Aleksandrovich ,  ASPIDOV, Alexander Alekseyevich

IPC: G02B30/56 ,  G02B27/42 ,  G02B5/18 ,  G02B3/00

Abstract: A mid-air image display device and an operation method thereof are provided. The mid-air image display device includes: a projection system configured to generate a light beam for an image; at least one positive lens; and a light multiplication module comprising a first transmission grating, a second transmission grating, a waveguide and a reflection grating, and configured to receive the light beam from the projection system and transmit the received light beam through the first transmission grating, the second transmission grating, the waveguide and the reflection grating, wherein the at least one positive lens is disposed on the light multiplication module, and configured to receive the light beam transmitted through the light multiplication module to form a mid-air image.