US 2026/0086429 A1Published application

Imaging lens driving module, camera module and electronic device

AssigneeLargan Precision Co., Ltd.

InventorsHeng-Yi SU, Yi Hua TSENG, Te-Sheng TSENG

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Abstract

An imaging lens driving module includes a lens carrier, an imaging lens assembly, a first frame element, a variable aperture element, a circuit board, a flexible wire plate, a first driving element and a second driving element. The imaging lens assembly is disposed in the lens carrier. The imaging lens assembly is disposed on a first rail of the first frame element via a first ball element. The variable aperture element is disposed on the lens carrier. The circuit board is disposed on an image side of the imaging lens assembly. The flexible wire plate is coupled to the circuit board and the lens carrier. The first driving element is for rotating blades of the variable aperture element for enlarging or shrinking an aperture hole. The second driving element is for driving the lens carrier to move along a first direction.

Claims35

Dependent claims

An imaging lens driving module, comprising:

a lens carrier;
an imaging lens assembly having an optical axis, and disposed in the lens carrier;
a first frame element having a first surface, wherein a first rail is disposed on the first surface along a first direction, the first direction is parallel to the optical axis, the imaging lens assembly is disposed on the first rail via a first ball element;
a variable aperture element comprising:
a fixing portion fixed on the lens carrier;
a rotating portion being rotatable relative to the fixing portion, and having at least two blades;
and
an aperture hole formed by the at least two blades, wherein at least two second ball elements are disposed between the fixing portion and the rotating portion, the fixing portion and the rotating portion are rotatable relative to each other via the at least two second ball elements so as to move the at least two blades for enlarging or shrinking the aperture hole;
a circuit board disposed on an image side of the imaging lens assembly;
a flexible wire plate comprising:
a fixing end coupled and fixed to the circuit board;
a movable end coupled and fixed to the lens carrier;
a first flexible portion connected to the movable end;
a second flexible portion connected to the first flexible portion and the fixing end, wherein the second flexible portion is closer to the fixing end than the first flexible portion to the fixing end;
and
a restrained element coupled with the first flexible portion and the second flexible portion so as to form an angle between the first flexible portion and the second flexible portion;
a first driving element for driving the rotating portion to rotate relative to the fixing portion so as to rotate the at least two blades for enlarging or shrinking the aperture hole;
and
a second driving element for driving the lens carrier to move along the first direction;
wherein the first driving element and the second driving element are both electrically connected to the flexible wire plate;
wherein the second flexible portion of the flexible wire plate comprises:
at least two meandering branches extending away from the fixing end, wherein the at least two meandering branches are overlapped observed along a specific direction;
and
a node, the at least two meandering branches converged at the node on a way extending towards the fixing end;
wherein a shortest length of the second flexible portion along a direction parallel to the optical axis is D, a total length of the meandering branches is L, and the following conditions are satisfied:
D
<
L
;
and
1.4
<
L
/
D
<
1
⁢
7
.

37 more elements

An imaging lens driving module, comprising:

a lens carrier;
an imaging lens assembly having an optical axis, and disposed in the lens carrier;
a first frame element having a first surface, wherein a first rail is disposed on the first surface along a first direction, the first direction is parallel to the optical axis, the imaging lens assembly is disposed on the first rail via a first ball element;
a variable aperture element comprising:
a fixing portion fixed on the lens carrier;
a rotating portion being rotatable relative to the fixing portion, and having at least two blades;
and
an aperture hole formed by the at least two blades, wherein at least two second ball elements are disposed between the fixing portion and the rotating portion, the fixing portion and the rotating portion are rotatable relative to each other via the at least two second ball elements so as to move the at least two blades for enlarging or shrinking the aperture hole;
a circuit board disposed on an image side of the imaging lens assembly;
a flexible wire plate comprising:
a fixing end coupled and fixed to the circuit board;
a movable end coupled and fixed to the lens carrier;
a first flexible portion connected to the movable end;
and
a second flexible portion connected to the first flexible portion and the fixing end, wherein the second flexible portion is closer to the fixing end than the first flexible portion to the fixing end;
a first driving element for driving the rotating portion to rotate relative to the fixing portion so as to rotate the at least two blades for enlarging or shrinking the aperture hole;
and
a second driving element for driving the lens carrier to move along the first direction;
wherein the first driving element and the second driving element are both electrically connected to the flexible wire plate;
wherein the second flexible portion of the flexible wire plate comprising:
at least two meandering branches extending away from the fixing end, the at least two meandering branches are overlapped observed along a specific direction;
wherein the second flexible portion has a maximum width being Wc close to the first flexible portion, each of the meandering branches has a minimum width Wf close to the fixing end, and the following conditions are satisfied:
Wf
<
Wc
;
and
1.5
<
Wc
/
Wf
<
16
.

32 more elements

An imaging lens driving module, comprising:

a lens carrier;
an imaging lens assembly having an optical axis, and disposed in the lens carrier;
a first frame element having a first surface, wherein a first rail is disposed on the first surface along a first direction, the first direction is parallel to the optical axis, the imaging lens assembly is disposed on the first rail via a first ball element;
a variable aperture element comprising:
a fixing portion fixed on the lens carrier;
a rotating portion being rotatable relative to the fixing portion, and having at least two blades;
and
an aperture hole formed by the at least two blades, wherein at least two second ball elements are disposed between the fixing portion and the rotating portion, the fixing portion and the rotating portion are rotatable relative to each other via the at least two second ball elements so as to move the at least two blades for enlarging or shrinking the aperture hole;
a circuit board disposed on an image side of the imaging lens assembly;
a flexible wire plate comprising:
a fixing end coupled and fixed to the circuit board;
a movable end coupled and fixed to the lens carrier;
a first flexible portion connected to the movable end;
a second flexible portion connected to the fixing end, wherein the second flexible portion is closer to the fixing end than the first flexible portion to the fixing end;
and
a turning section, one end of the turning section connected to the first flexible portion, the other end of the turning section connected to the second flexible portion, and an angle formed between the first flexible portion and the second flexible portion;
a first driving element for driving the rotating portion to rotate relative to the fixing portion so as to rotate the at least two blades for enlarging or shrinking the aperture hole;
and
a second driving element for driving the lens carrier to move along the first direction;
wherein the first driving element and the second driving element are both electrically connected to the flexible wire plate;
wherein the second flexible portion of the flexible wire plate comprising:
at least two meandering branches extending away from the fixing end, wherein the at least two meandering branches are overlapped observed along a specific direction;
and
a node, the at least two meandering branches converged at the node on a way extending towards the fixing end;
wherein a shortest distance between the fixing end and the node along the optical axis is Hn, a shortest length of the second flexible portion along the optical axis is D, and the following conditions are satisfied:
Hn
<
D
;
and
0.1
≤
Hn
/
D
≤
0.5
.

35 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/333,463Filed 19 Sep 2025
Priority: 25 Sep 2024
Published: 26 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G03B 9/06
Diaphragms: two or more co-operating pivoted blades, e.g. iris type
H04N 23/54
Constructional details: mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
H04N 23/55
Constructional details: optical parts specially adapted for electronic image sensors; Mounting thereof
H04N 23/57
Cameras or camera modules comprising electronic image sensors; Control thereof: mechanical or electrical details of cameras or camera modules…

Family

Application63/698,637Us provisional application · filed 25 Sep 2024
US 2026/0086429 A1This patent

From the US filing history. Foreign family members aren’t listed.

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