US 12,332,601 B2
Holographic display apparatus and hologram optimization method therefor
Byoungho Lee, Seoul (KR); Dukho Lee, Seoul (KR); Kiseung Bang, Seoul (KR); and Seung-Woo Nam, Seoul (KR)
Assigned to SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
Appl. No. 17/904,744
Filed by SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
PCT Filed Dec. 30, 2021, PCT No. PCT/KR2021/020255
§ 371(c)(1), (2) Date Aug. 22, 2022,
PCT Pub. No. WO2023/128010, PCT Pub. Date Jul. 6, 2023.
Claims priority of application No. 10-2021-0188990 (KR), filed on Dec. 27, 2021.
Prior Publication US 2024/0192638 A1, Jun. 13, 2024
Int. Cl. G03H 1/22 (2006.01); G03H 1/04 (2006.01); G03H 1/08 (2006.01); G03H 1/12 (2006.01)
CPC G03H 1/2202 (2013.01) [G03H 1/0443 (2013.01); G03H 1/0486 (2013.01); G03H 1/0808 (2013.01); G03H 1/12 (2013.01); G03H 2001/045 (2013.01); G03H 2001/0833 (2013.01); G03H 2001/2239 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A holographic display apparatus comprising: a focus-forming optical element configured to form a plurality of foci by receiving plane waves;
a collimating lens configured to propagate, as plane waves, light incident through the plurality of foci;
a spatial light modulator configured to generate a holographic image by overlapping a plurality of plane waves incident from the collimating lens; and
an aberration corrector configured to measure aberration by using an image captured by making the holographic image and a reference wave interfere with each other, and reflect a complex wavefront corresponding to inverse of the measured aberration, in the spatial light modulator.