US 11,902,716 B2
Optical systems with compact image projector
Kobi Greenstein, Ness Ziona (IL); Tsion Eisenfeld, Ashkelon (IL); and Netanel Goldstein, Ness Ziona (IL)
Assigned to LUMUS LTD., Ness Ziona (IL)
Filed by Lumus Ltd., Ness Ziona (IL)
Filed on Sep. 28, 2023, as Appl. No. 18/373,985.
Application 18/373,985 is a continuation of application No. 18/211,308, filed on Jun. 19, 2023, granted, now 11,805,232.
Application 18/211,308 is a continuation of application No. 18/074,571, filed on Dec. 5, 2022, granted, now 11,729,359, issued on Aug. 15, 2023.
Application 18/074,571 is a continuation of application No. 17/636,100, granted, now 11,523,092, issued on Dec. 6, 2022, previously published as PCT/IL2020/051259, filed on Dec. 6, 2020.
Claims priority of provisional application 62/945,165, filed on Dec. 8, 2019.
Prior Publication US 2024/0022695 A1, Jan. 18, 2024
Int. Cl. H04N 9/31 (2006.01); G02B 27/01 (2006.01); G02B 7/02 (2021.01); G02B 27/09 (2006.01)
CPC H04N 9/3152 (2013.01) [G02B 7/021 (2013.01); G02B 27/0176 (2013.01); G02B 27/0955 (2013.01); G02B 27/0172 (2013.01); G02B 2027/0116 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An optical system, comprising:
an image projector for producing light-waves corresponding to an image, the image projector including: an emissive display device configured to generate light corresponding to the image, and
an optical assembly configured to receive light from the emissive display device and output image light, the optical assembly including a base optical element and a plurality of lens optical elements arranged in a stack configuration;
a light-transmitting substrate having a plurality of surfaces including at least a pair of major external surfaces configured to guide light by internal reflection between the major external surfaces; and
an optical coupling-in configuration associated with the base optical element and a coupling-in region of the light-transmitting substrate, and configured to couple image light from the image projector into the light-transmitting substrate,
wherein the base optical element has a prism-shaped cross-section and is configured to modify the image light prior to the image light reaching the optical coupling-in configuration so as to at least partially compensate for chromatic aberration.