US 12,078,822 B2
Light-shielding element and optical imaging lens applying the same
Ziwen Xu, Fujian (CN); Guangwei Fu, Fujian (CN); and Yiqun Chen, Fujian (CN)
Assigned to GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD., Fujian (CN)
Filed by GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD., Fujian (CN)
Filed on Jun. 11, 2021, as Appl. No. 17/344,992.
Claims priority of application No. 202110351363.X (CN), filed on Mar. 31, 2021.
Prior Publication US 2022/0317344 A1, Oct. 6, 2022
Int. Cl. G02B 5/00 (2006.01); G02B 3/04 (2006.01)
CPC G02B 5/003 (2013.01) [G02B 3/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A light-shielding element, configured to dispose in a lens barrel, and comprising an object-side mechanical surface facing an object side, an image-side mechanical surface facing an image side, an inner-side surface facing an optical axis, and an outer-side surface facing away from the inner-side surface;
the light-shielding element further comprising at least one cut, wherein the at least one cut extends from the inner-side surface toward the outer-side surface and penetrates the object-side mechanical surface and the image-side mechanical surface;
the inner-side surface surrounds the optical axis and forms a through hole, a contour of the through hole has a shortest distance D1 passing through the optical axis and a longest distance D2 passing through the optical axis; and
the light-shielding element satisfies a following conditional expressions: 1.200≤D2/D1≤3.000 and 0.010≤(D4−D3)/(D3+D4)≤0.950,
where the outer-side surface of the light-shielding element has a shortest distance D3 passing through the optical axis, and the outer-side surface of the light-shielding element has a longest distance D4 passing through the optical axis.