US 12,228,785 B2
Imaging lens assembly, camera module and electronic device
Cheng-Feng Lin, Taichung (TW); and Ming-Ta Chou, Taichung (TW)
Assigned to LARGAN PRECISION CO., LTD., Taichung (TW)
Filed by LARGAN PRECISION CO., LTD., Taichung (TW)
Filed on Jun. 28, 2023, as Appl. No. 18/342,782.
Application 18/342,782 is a continuation of application No. 17/749,222, filed on May 20, 2022, granted, now 11,726,291.
Application 17/749,222 is a continuation of application No. 16/736,018, filed on Jan. 7, 2020, granted, now 11,372,191, issued on Jun. 28, 2022.
Application 16/736,018 is a continuation of application No. 16/558,202, filed on Sep. 2, 2019, granted, now 10,564,382, issued on Feb. 18, 2020.
Application 16/558,202 is a continuation of application No. 15/869,359, filed on Jan. 12, 2018, granted, now 10,444,464, issued on Oct. 15, 2019.
Claims priority of application No. 106127359 (TW), filed on Aug. 11, 2017.
Prior Publication US 2023/0341649 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 7/02 (2021.01); G02B 1/04 (2006.01); G02B 1/10 (2015.01); G02B 1/14 (2015.01); G02B 13/00 (2006.01)
CPC G02B 7/021 (2013.01) [G02B 1/041 (2013.01); G02B 1/10 (2013.01); G02B 1/14 (2015.01); G02B 13/0045 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An imaging lens assembly, comprising:
a plastic barrel, comprising:
an object-side outer surface;
a first inner surface formed in the plastic barrel and opposite to the object-side outer surface, wherein the first inner surface surrounds an object-side opening; and
a second inner surface formed in the plastic barrel and located at an image side of the first inner surface, wherein there is no overlap between the second inner surface and the first inner surface along a direction parallel to an optical axis; and
a lens set disposed in the plastic barrel, wherein the lens set has the optical axis and comprises, from an object side thereof to an image side thereof, at least one plastic lens element and a spacer, a light-absorbing coating is disposed on the plastic lens element, and the spacer comprises:
a central hole coaxial with the object-side opening;
an object-side surface surrounding the central hole, wherein the object-side surface comprises an object-side connecting surface and a relative surface, the object-side connecting surface is closer to the central hole than the relative surface, the object-side connecting surface is configured for connecting with a neighboring object-side optical element, the neighboring object-side optical element is the at least one plastic lens element, and when the object-side connecting surface is connected with the neighboring object-side optical element, the relative surface is out of touch with the neighboring object-side optical element; and
an image-side surface opposite to the object-side surface, wherein the image-side surface comprises an image-side connecting surface, the image-side connecting surface is opposite to the relative surface, and the image-side connecting surface is configured for connecting with a neighboring image-side optical element;
wherein there is an overlap between the second inner surface and the relative surface along the direction parallel to the optical axis, and a portion of the light-absorbing coating is closer to the optical axis than the object-side connecting surface of the spacer thereto.