US 12,345,883 B2
Augmented reality display having a thin optical combiner
Joon Ku Hahn, Daegu (KR); Hwi Kim, Seoul (KR); Young Jin Jeon, Sejong (KR); Sang Yoon Kim, Seongnam-si (KR); and Ho Sung Jeon, Daegu (KR)
Assigned to KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, Daegu (KR); and KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS, Sejong (KR)
Appl. No. 17/641,667
Filed by KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, Daegu (KR); and KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS, Sejong (KR)
PCT Filed Jan. 27, 2021, PCT No. PCT/KR2021/001058
§ 371(c)(1), (2) Date Mar. 9, 2022,
PCT Pub. No. WO2022/154155, PCT Pub. Date Jul. 21, 2022.
Claims priority of application No. 10-2021-0006175 (KR), filed on Jan. 15, 2021.
Prior Publication US 2022/0404619 A1, Dec. 22, 2022
Int. Cl. G02B 27/01 (2006.01); G02B 27/28 (2006.01)
CPC G02B 27/0103 (2013.01) [G02B 27/0179 (2013.01); G02B 27/283 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An augmented reality display having an optical combiner and configured to be viewed by eyes of a user, the augmented reality display comprising:
an optical combiner part configured to receive virtual image light waves and combine an external scene and a virtual image,
wherein the optical combiner part comprises:
a plurality of glass substrates; and
a polarization-dependent lens disposed obliquely in a diagonal direction between the plurality of glass substrates to transmit optically modulated virtual image light waves in a direction toward the eyes of the user, wherein the optical combiner part further comprises:
a light distributor configured to distribute the virtual image light waves to a spatial light modulator (SLM); and
the spatial light modulator (SLM) configured to optically modulate the virtual image light waves and transmit the optically modulated virtual image light waves to the polarization-dependent lens.