US 11,675,155 B2
Spacer design for mitigating stray light
Itay Yedid, Tel Aviv (IL); and Ephraim Goldenberg, Tel Aviv (IL)
Assigned to Corephotonics Ltd., Tel Aviv (IL)
Filed by Corephotonics Ltd., Tel-Aviv (IL)
Filed on Apr. 7, 2022, as Appl. No. 17/715,249.
Application 17/715,249 is a continuation of application No. 16/975,718, granted, now 11,333,845, previously published as PCT/IB2019/051643, filed on Mar. 1, 2019.
Claims priority of provisional application 62/637,451, filed on Mar. 2, 2018.
Prior Publication US 2022/0229262 A1, Jul. 21, 2022
Int. Cl. G02B 7/02 (2021.01); H04N 23/55 (2023.01); G02B 3/04 (2006.01)
CPC G02B 7/021 (2013.01) [H04N 23/55 (2023.01); G02B 3/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A spacer for separating a non-circular first lens element from a second lens element, the spacer comprising:
a spacer perimeter including a contact section being in contact with the first lens element and the second lens element and a non-contact section being separated from the first lens element,
wherein the non-contact section comprises a non-contact section internal inclined surface having a height D2 extending between an internal contour of the spacer to a base of the non-contact section internal inclined surface,
wherein the spacer perimeter has a thickness t extending between a contact point of a back face of the spacer facing the second lens element and a contact point of a front face of the spacer facing the first lens element, and
wherein an inclination of the non-contact section internal inclined surface is greater than a ratio D2/t.