US 12,032,146 B2
Camera lens system
Yuhong Yao, San Jose, CA (US); Miodrag Scepanovic, San Jose, CA (US); and Yoshikazu Shinohara, Cupertino, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/278,251
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Sep. 20, 2019, PCT No. PCT/US2019/052244
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/068594, PCT Pub. Date Apr. 2, 2020.
Claims priority of provisional application 62/736,394, filed on Sep. 25, 2018.
Prior Publication US 2021/0349295 A1, Nov. 11, 2021
Int. Cl. G02B 17/08 (2006.01); G02B 13/00 (2006.01)
CPC G02B 17/0856 (2013.01) [G02B 13/007 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A folded optical system, comprising:
a first prism; and
a second prism;
wherein the first prism has refractive power and has only one reflecting surface for internally reflecting light and is configured to redirect the light received from an object field, toward the second prism;
wherein the second prism has only one reflecting surface for internally reflecting the light and is configured to redirect the light to form an image of the object field at an image plane;
wherein for the first prism or the second prism, the respective reflecting surface is flat/plano; and
wherein at least one surface of at least one of the prisms is rotationally asymmetric and the at least one surface provides refractive power to the light that passes through the at least one surface.