公开(公告)号：US20200050145A1

公开(公告)日：2020-02-13

申请号：US16287493

申请日：2019-02-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young KIM ,  Hongseok Lee ,  Hoon Song ,  Jungkwuen An ,  Kanghee Won ,  Chilsung Choi

IPC: G03H1/04 ,  G02F1/1343 ,  G02F1/1335 ,  G02B6/12 ,  G02F1/133

Abstract: A focus modulation optical system and a holographic display device having the focus modulation optical system are disclosed. The holographic display device includes a light source configured to emit a plurality of color lights, a focus modulation optical system including at least one variable focus lens that is configured to change a focusing position of incident light by electrical control of the at least one variable focus lens based on a color of light incident on the variable focus lens, and a spatial light modulator configured to form a holographic image by diffracting light output from the focus modulation optical system.

公开(公告)号：US09869969B2

公开(公告)日：2018-01-16

申请号：US14682548

申请日：2015-04-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hoon Song ,  Geeyoung Sung ,  Kanghee Won ,  Hongseok Lee

IPC: G02F1/29 ,  G03H1/02 ,  G02B26/00 ,  G03H1/22 ,  G02B5/06 ,  G02B26/08 ,  G02F1/1333

CPC classification number: G03H1/02 ,  G02B5/06 ,  G02B26/005 ,  G02B26/0883 ,  G02B27/2271 ,  G02F1/133371 ,  G02F1/292 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0216 ,  G03H2001/221 ,  G03H2001/2292 ,  G03H2223/18 ,  G03H2227/03

Abstract: A holographic display includes: a light source; at least one beam steerer configured to control a propagation direction of a beam emitted from the light source; an optical element configured to condense a beam passing through the at least one beam steerer; and a spatial light modulator configured to form a three-dimensional (3D) image by modulating a beam passing through the at least one beam steerer.

公开(公告)号：US09696687B2

公开(公告)日：2017-07-04

申请号：US14561760

申请日：2014-12-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Geeyoung Sung ,  Hoon Song ,  Jungkwuen An ,  Kanghee Won ,  Hongseok Lee

IPC: G03H1/22 ,  G02B27/22 ,  G02B5/32 ,  G02B5/04 ,  G03H1/02

CPC classification number: G03H1/2294 ,  G02B5/045 ,  G02B5/32 ,  G02B27/2214 ,  G02B27/2242 ,  G02B27/2264 ,  G03H2001/0224 ,  G03H2223/18 ,  G03H2223/19 ,  G03H2225/33 ,  G03H2225/55

Abstract: Provided are a complex spatial light modulator and a three-dimensional (3D) image display apparatus. The complex spatial light modulator includes a spatial light modulator configured to modulate a phase of light, a first prism array which is disposed after the spatial light modulator along a path of the light, and including prism units each having a first prism surface and a second prism surface, and a hologram optical device configured to diffract the light that has passed through the first prism array independently from a polarization of the light, where the first prism array and the hologram optical device are configured to modulate the phase and an amplitude of the light.