US 12,422,667 B2
Optical system, imaging apparatus, and projection apparatus
Hiroshi Imai, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 18/567,064
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Jun. 9, 2021, PCT No. PCT/JP2021/021942
§ 371(c)(1), (2) Date Dec. 5, 2023,
PCT Pub. No. WO2022/259428, PCT Pub. Date Dec. 15, 2022.
Prior Publication US 2024/0264431 A1, Aug. 8, 2024
Int. Cl. G02B 26/08 (2006.01); H04N 23/55 (2023.01)
CPC G02B 26/0883 (2013.01) [H04N 23/55 (2023.01)] 7 Claims
OG exemplary drawing
 
1. An optical system comprising:
an imaging element configured to convert light into an electric signal;
a lens configured to deflect and converge the light; and
a prism disposed in an optical path between the imaging element and the lens,
wherein a virtual image of a light receiving surface of the imaging element is formed in the prism and a focusing surface is at a position conjugate with the virtual image with the lens interposed therebetween.