US 12,313,898 B2
Imaging lens assembly module, camera module and electronic device
Jyun-Jia Cheng, Taichung (TW); Ming-Ta Chou, Taichung (TW); and Ming-Shun Chang, Taichung (TW)
Assigned to LARGAN PRECISION CO., LTD., Taichung (TW)
Filed by LARGAN PRECISION CO., LTD., Taichung (TW)
Filed on Mar. 13, 2024, as Appl. No. 18/603,292.
Application 18/603,292 is a continuation of application No. 18/172,384, filed on Feb. 22, 2023, granted, now 11,960,140.
Application 18/172,384 is a continuation of application No. 16/892,395, filed on Jun. 4, 2020, granted, now 11,614,595, issued on Mar. 28, 2023.
Claims priority of application No. 108132854 (TW), filed on Sep. 11, 2019.
Prior Publication US 2024/0255723 A1, Aug. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 7/02 (2021.01); G02B 13/00 (2006.01)
CPC G02B 7/021 (2013.01) [G02B 13/0045 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An imaging lens assembly module, which has an optical axis, comprising:
an optical element set, comprising:
at least one optical lens element, which is a plastic lens element, and an object side of the at least one optical lens element without additional one or more optical lens elements disposed thereon, the at least one optical lens element, in order from the optical axis to a peripheral region thereof, comprising:
an optical effective portion; and
an outer peripheral portion surrounding the optical effective portion; and
at least one light blocking sheet disposed on an object side of the outer peripheral portion of the at least one optical lens element, and spaced apart from the outer peripheral portion of the at least one optical lens element, the at least one light blocking sheet comprising:
an object-side surface;
an image-side surface; and
an inner opening surface surrounding a through hole of the at least one light blocking sheet, and the inner opening surface connected to the object-side surface and the image-side surface;
a light blocking element assembling surface disposed on an object side of the at least one light blocking sheet, and the light blocking element assembling surface facing toward an image side of the imaging lens assembly module and being surrounding the through hole of the at least one light blocking sheet and for the at least one light blocking sheet mounted thereon; and
a light absorbing layer disposed on the image-side surface of the at least one light blocking sheet and the object-side surface of the at least one light blocking sheet;
wherein a void is maintained between the at least one light blocking sheet and the at least one optical lens element;
wherein a diameter of the through hole of the at least one light blocking sheet is ψsa, an outer diameter of the at least one light blocking sheet is ψsd, and the following condition is satisfied:

OG Complex Work Unit Math