US 12,253,828 B2
Multi-image display apparatus providing holographic image
Wontaek Seo, Yongin-si (KR); Youngil Kim, Seongnam-si (KR); Byeongsoo Son, Seongnam-si (KR); Changkun Lee, Seoul (KR); Gyewon Seo, Seongnam-si (KR); and Geeyoung Sung, Daegu (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do (KR)
Filed on Feb. 23, 2024, as Appl. No. 18/585,252.
Application 18/585,252 is a division of application No. 17/900,650, filed on Aug. 31, 2022, granted, now 11,947,316.
Application 17/900,650 is a division of application No. 16/670,261, filed on Oct. 31, 2019, granted, now 11,467,535, issued on Oct. 11, 2022.
Claims priority of application No. 10-2019-0053889 (KR), filed on May 8, 2019; and application No. 10-2019-0083944 (KR), filed on Jul. 11, 2019.
Prior Publication US 2024/0192639 A1, Jun. 13, 2024
Int. Cl. G03H 1/22 (2006.01); G02B 27/01 (2006.01); G02B 27/28 (2006.01); G03H 1/02 (2006.01); G03H 1/12 (2006.01); G03H 1/28 (2006.01)
CPC G03H 1/2294 (2013.01) [G02B 27/0101 (2013.01); G02B 27/285 (2013.01); G03H 1/12 (2013.01); G03H 1/2205 (2013.01); G03H 1/28 (2013.01); G02B 27/0103 (2013.01); G03H 2001/0224 (2013.01); G03H 2001/221 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A multi-image display apparatus comprising:
a light source configured to emit light;
a spatial light modulator configured to provide a first image by modulating the light emitted from the light source; and
an optical system configured to transmit the first image provided by the spatial light modulator to a viewer,
wherein the optical system is configured such that a first travelling path of the first image provided by the spatial light modulator comprises a first optical path in a first direction, a second optical path in a second direction orthogonal to the first direction, and a third optical path in a third direction orthogonal to the first direction and the second direction,
wherein the optical system is configured such that the first image and a second image provided from a second travelling path different from the first travelling path are provided to the viewer along the third optical path,
wherein the spatial light modulator comprises a transmissive spatial light modulator configured to transmit and modulate the light emitted from the light source, and
wherein the optical system further comprises:
a second beam splitter configured to transmit the light provided from the spatial light modulator;
a first lens and a second lens provided between the spatial light modulator and the second beam splitter; and
a spatial filter provided between the first lens and the second lens.