US 12,393,033 B2
Optical lens module, optical engine module and head-mounted display
Meng-Feng Chung, Hsin-Chu (TW)
Assigned to Coretronic Corporation, Hsin-Chu (TW)
Filed by Coretronic Corporation, Hsin-Chu (TW)
Filed on Nov. 13, 2023, as Appl. No. 18/507,124.
Claims priority of application No. 202211458264.2 (CN), filed on Nov. 17, 2022.
Prior Publication US 2024/0168297 A1, May 23, 2024
Int. Cl. G02B 27/01 (2006.01); G02B 5/30 (2006.01); G02B 13/00 (2006.01); G02B 27/28 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 5/3083 (2013.01); G02B 13/0045 (2013.01); G02B 27/283 (2013.01)] 25 Claims
OG exemplary drawing
 
1. An optical lens module, configured to receive at least one image light beam from an image source side, the optical lens module comprising:
a plurality of lens elements, comprising a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element arranged in sequence along an optical axis from an object side to the image source side, and the optical lens module having a semi-reflective layer, a phase retardation layer, and a polarization reflection layer respectively formed on different surfaces of a part of the plurality of lens elements, the optical lens module having an aperture on the object side;
wherein the optical lens module is a secondary imaging optical system, and the at least one image light beam is transmitted by the optical lens module and forms an intermediate image between the aperture and the image source side.