U.S. patent application number 17/731551 was filed with the patent office on 2022-08-11 for lens module capable of changing focal distance and electronic device using the same.
The applicant listed for this patent is TRIPLE WIN TECHNOLOGY(SHENZHEN) CO.LTD.. Invention is credited to SHIN-WEN CHEN, KUN LI, XIAO-MEI MA, LONG-FEI ZHANG.
Application Number | 20220252854 17/731551 |
Document ID | / |
Family ID | 1000006303267 |
Filed Date | 2022-08-11 |
United States Patent
Application |
20220252854 |
Kind Code |
A1 |
MA; XIAO-MEI ; et
al. |
August 11, 2022 |
LENS MODULE CAPABLE OF CHANGING FOCAL DISTANCE AND ELECTRONIC
DEVICE USING THE SAME
Abstract
A lens module includes a printed circuit board, a lens
component, and at least two electric conductors. The lens component
includes a first lens and a microscope base, the first lens is
formed on the microscope base, the microscope base is formed on the
printed circuit board, and the first lens is electrically
conductive and deforms under voltage. The first lens is
electrically connected to the printed circuit board by the electric
conductors. The printed circuit board outputs a voltage to the
first lens through the electric conductors; the first lens deforms
according to the voltage thereby changing a focal distance of light
passing through the first lens. The disclosure also relates to an
electronic device using the lens module. The lens module can has a
zoom function and has a litter volume.
Inventors: |
MA; XIAO-MEI; (Shenzhen,
CN) ; CHEN; SHIN-WEN; (Tu-Cheng, TW) ; LI;
KUN; (Shenzhen, CN) ; ZHANG; LONG-FEI;
(Shenzhen, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
TRIPLE WIN TECHNOLOGY(SHENZHEN) CO.LTD. |
Shenzhen |
|
CN |
|
|
Family ID: |
1000006303267 |
Appl. No.: |
17/731551 |
Filed: |
April 28, 2022 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
16680812 |
Nov 12, 2019 |
11347042 |
|
|
17731551 |
|
|
|
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H05K 1/0296 20130101;
G02B 21/26 20130101; G02B 3/12 20130101; G02B 15/22 20130101; G02B
21/241 20130101 |
International
Class: |
G02B 21/24 20060101
G02B021/24; G02B 15/22 20060101 G02B015/22; H05K 1/02 20060101
H05K001/02; G02B 3/12 20060101 G02B003/12 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 9, 2019 |
CN |
201910857655.3 |
Claims
1. A lens module comprising: a printed circuit board; a lens
component, wherein the lens component comprises a first lens and a
microscope base, the first lens is formed on the microscope base,
the microscope base is formed on the printed circuit board, the
first lens comprises at least two electrodes, a sealing body with a
cavity, and a filler sealed in the cavity; and at least two
electric conductors, wherein the first lens is electrically
connected to the printed circuit board by the at least two electric
conductors; one end of each of the at least two electrodes is
electrically connected to a corresponding one of the at least two
electric conductors, the other end of each of the at least two
electrodes extends to the cavity and is electrically connected to
the filler, the printed circuit board outputs a voltage to the
first lens through the at least two electric conductors; the first
lens is configured to deform under a change of the voltage applied
to the first lens, thereby changing a focal distance of the first
lens.
2. The lens module of claim 1, wherein at least two first receiving
grooves are defined in an outer wall of the microscope base, and
the at least two electric conductors are received in the at least
two first receiving grooves.
3. The lens module of claim 2, wherein the lens module further
comprises a bearing seat mounted on the printed circuit board, the
at least two first receiving grooves are defined in an outer wall
of the bearing seat, and the at least two first receiving grooves
are defined from the first lens to the outer wall of the microscope
base and from the outer wall of the bearing seat to the printed
circuit board.
4. The lens module of claim 1, wherein the lens component further
comprises a second lens received in the microscope base, the second
lens is formed between the first lens and the microscope base.
5. The lens module of claim 1, wherein at least two second
receiving grooves are defined in the printed circuit board, at
least two conductive terminals are received in the at least two
second receiving grooves; the conductive terminals have opposite
polarity; the at least two electrodes have opposite polarity; the
at least two electrodes are electrically connected to the
conductive terminals formed on the printed circuit board to
electrically connect to a positive pole and a negative pole of the
printed circuit board.
6. The lens module of claim 1, wherein the filler is at least one
of a liquid filler and a solid filler.
7. The lens module of claim 1, wherein the sealing body is made
from a euphotic material.
8. The lens module of claim 1, wherein the filler is a liquid
filler, the filler comprises a first liquid and a second liquid;
the first liquid and the second liquid cannot dissolve with each
other; at least one of the first liquid and the second liquid is
electrically conductive and deforms under a change of the voltage
to change a shape and a curvature of a contacting surface between
the first liquid and the second liquid thereby changing the focal
distance of the first lens.
9. The lens module of claim 3, wherein the lens module further
comprises a sensor formed on and electrically connected to the
printed circuit board; a through hole is defined in the bearing
seat; and the through hole penetrates through the bearing seat and
faces the sensor.
10. An electronic device, comprising: a body; a lens module mounted
in the body comprising: a printed circuit board; a lens component,
wherein the lens component comprises a first lens and a microscope
base, the first lens is formed on the microscope base, the
microscope base is formed on the printed circuit board, the first
lens comprises at least two electrodes, a sealing body with a
cavity, and a filler sealed in the cavity; and at least two
electric conductors, wherein the first lens is electrically
connected to the printed circuit board by the at least two electric
conductors; one end of each of the at least two electrodes is
electrically connected to a corresponding one of the at least two
electric conductors, the other end of each of the at least two
electrodes extends to the cavity and is electrically connected to
the filler, the printed circuit board outputs a voltage to the
first lens through the at least two electric conductors; the first
lens is configured to deform under a change of the voltage applied
to the first lens, thereby changing a focal distance of the first
lens.
11. The electronic device of claim 10, wherein at least two first
receiving grooves are defined in an outer wall of the microscope
base, the at least two electric conductors are received in the at
least two first receiving grooves.
12. The electronic device of claim 11, wherein the lens module
further comprises a bearing seat mounted on the printed circuit
board, the at least two first receiving grooves are defined in an
outer wall of the bearing seat, and the at least two first
receiving grooves are defined from the first lens to the outer wall
of the microscope base and from the outer wall of the bearing seat
to the printed circuit board.
13. The electronic device of claim 10, wherein the lens component
further comprises a second lens received in the microscope base,
the second lens is formed between the first lens and the microscope
base.
14. The electronic device of claim 10, wherein at least two second
receiving grooves are defined in the printed circuit board, at
least two conductive terminals are received in the at least two
second receiving grooves; the conductive terminals have opposite
polarity; the at least two electrodes have opposite polarity; the
at least two electrodes are electrically connected to the
conductive terminals formed on the printed circuit board to
electrically connect to a positive pole and a negative pole of the
printed circuit board.
15. The electronic device of claim 10, wherein the filler is at
least one of a liquid filler and a solid filler.
16. The electronic device of claim 10, wherein the sealing body is
made from a euphotic material.
17. The electronic device of claim 10, wherein the filler is a
liquid filler, the filler comprises a first liquid and a second
liquid; the first liquid and the second liquid cannot dissolve with
each other; at least one of the first liquid and the second liquid
is electrically conductive and deforms under a change of the
voltage to change a shape and a curvature of a contacting surface
between the first liquid and the second liquid thereby changing the
focal distance of the first lens.
18. The electronic device of claim 12, wherein the lens module
further comprises a sensor formed on and electrically connected to
the printed circuit board; a through hole is defined in the bearing
seat; and the through hole penetrates through the bearing seat and
faces the sensor.
Description
FIELD
[0001] The subject matter of the application generally relates to a
lens module.
BACKGROUND
[0002] Electronic devices, such as mobile phones, tablet computers
or cameras, may have lens modules. A voice coil motor of the
electronic device is necessary. The voice coil motor pushes the
lens to move to achieve different focal distance. As the pixels of
the lens module get higher, the volume of the voice coil motor
becomes larger.
[0003] Therefore, there is room for improvement in the art.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] Implementations of the present disclosure will now be
described, by way of embodiments, with reference to the attached
figures.
[0005] FIG. 1 is a perspective view of a first embodiment of a lens
module according to the present disclosure.
[0006] FIG. 2 is an exploded view of the lens module of FIG. 1.
[0007] FIG. 3 is a cross-section view of a first lens of the lens
module of FIG. 1.
[0008] FIG. 4 is a perspective view of an electronic device.
DETAILED DESCRIPTION
[0009] It will be appreciated that for simplicity and clarity of
illustration, where appropriate, reference numerals have been
repeated among the different figures to indicate corresponding or
analogous elements. In addition, numerous specific details are set
forth in order to provide a thorough understanding of the
embodiments described herein. However, it will be understood by
those of ordinary skill in the art that the embodiments described
herein can be practiced without these specific details. In other
instances, methods, procedures, and components have not been
described in detail so as not to obscure the related relevant
feature being described. Also, the description is not to be
considered as limiting the scope of the embodiments described
herein. The drawings are not necessarily to scale, and the
proportions of certain portions may be exaggerated to better
illustrate details and features of the present disclosure.
[0010] The disclosure is illustrated by way of example and not by
way of limitation in the figures of the accompanying drawings, in
which like references indicate similar elements. It should be noted
that references to "an" or "one" embodiment in this disclosure are
not necessarily to the same embodiment, and such references mean
"at least one."
[0011] The term "comprising," when utilized, means "including, but
not necessarily limited to"; it specifically indicates open-ended
inclusion or membership in the so-described combination, group,
series, and the like.
[0012] FIGS. 1-3 show an embodiment of a lens module 100. The lens
module 100 includes a printed circuit board 10, a lens component
40, and at least two electric conductors 60. The lens component 20
includes a first lens 41. The first lens 41 electrically conductive
and deforms under voltage to change the focal distance of lights
passing through the first lens 41. The printed circuit board 10 is
electrically connected to the first lens 41 by the electric
conductors 60. The printed circuit board 10 outputs a voltage to
the first lens 41 through the electric conductors 60. The first
lens 41 deforms according to the voltage thereby changing a focal
distance of light passing through the first lens 41.
[0013] The electric conductors 60 are made from a material which is
electrically conductive, such as a metal, a metal alloy, a polymer
material, and the likes. In at least one embodiment, the electric
conductors 60 are made from a metal. The electric conductors 60 are
formed on the printed circuit board 10 and the lens component 40 by
a laser direct structuring (LDS) technology.
[0014] The printed circuit board 10 may be a flexible printed
circuit board, a rigid printed circuit board, a rigid-flex printed
circuit board, or the like. In at least one embodiment, the printed
circuit board 10 is a rigid-flex printed circuit board.
[0015] In FIG. 2, the printed circuit board 10 includes a first
rigid portion 11, a second rigid portion 12, and a flexible portion
13. The flexible portion 13 is located between the first rigid
portion 11 and the second rigid portion 12. An electrical
connection portion 14 is mounted on the second rigid portion 12.
The electrical connection portion 14 may be a connector or an edge
connector (gold fingers). The electrical connection portion 14 is
used to implement signal transmission between the lens module 100
and an external electronic components.
[0016] A sensor 15 and a plurality of electronic components 16 are
mounted on the first rigid portion 11. The sensor 15 is
electrically connected to the printed circuit board 10 and is used
to receive a light passing through the lens component 40 and
convert the light into image data. The electronic components 16 can
be components such as a resistor, a capacitor, a diode, a
transistor, a relay, or an electrically erasable programmable read
only memory (EEPROM). In at least one embodiment, the electrical
connection portion 14, the sensor 15, and the plurality of
electronic components 16 are formed on a same surface of the
printed circuit board 10. In other embodiment, the electrical
connection portion 14, the sensor 15, and the plurality of
electronic components 16 are formed on a different surface of the
printed circuit board 10.
[0017] At least two second receiving grooves 17 are defined in the
first rigid portion 11. The second receiving grooves 17 and the
sensor 15 are formed on a same surface of the printed circuit board
10. At least two conductive terminals 18 are received in the second
receiving grooves 17. The conductive terminals 18 have opposite
polarity. The conductive terminals 18 are used to electrically
connect to the electric conductors 60 or to make the lens module
has an optical image stabilization (OIS) function. In at least one
embodiment, the number of the second receiving grooves 17 is two.
In other embodiment, the number of the second receiving grooves 17
is not be limit to 2.
[0018] In other embodiment, the second receiving groove 17 also can
be omitted.
[0019] In FIG. 2, the lens module 100 further includes a bearing
seat 20. The bearing seat 20 is mounted on the first rigid portion
11. In at least one embodiment, the bearing seat 20 is mounted on
the first rigid portion 11 by a first adhesive 72. In at least one
embodiment, the bearing seat 20, the sensor 15, and the plurality
of electronic components 16 are formed on a same surface of the
printed circuit board 10. The bearing seat 20 is roughly
rectangular. A through hole 22 is defined in the bearing seat 20.
The through hole 22 penetrates through the bearing seat 20 and
faces the sensor 15.
[0020] An optical filter 30 is formed on the bearing seat 20. The
optical filter 30 faces the through hole 22. The optical filter 30
and the sensor 15 are formed on two opposite sides of the bearing
seat 20. In at least one embodiment, the optical filter 30 is
mounted on the bearing seat 20 by a second adhesive 74. In at least
one embodiment, the optical filter 30 is rectangular.
[0021] In FIG. 2, the lens component 40 further includes a
microscope base 44. The microscope base 44 is used to fix the first
lens 41. The first lens 41 is formed on the microscope base 44. The
microscope base 44 is mounted on the bearing seat 20 by a third
adhesive 76.
[0022] At least two first receiving grooves 50 are defined in an
outer wall of the microscope base 44 and an outer wall of the
bearing seat 20. The first receiving grooves 50 are used to receive
the electric conductors 60. One end of each of the first receiving
grooves 50 abuts the first lens 41, the other ends of each of the
first receiving grooves 50 abuts the printed circuit board 10. That
is, each of the first receiving grooves 50 are defined from the
first lens 41 to the outer wall of the microscope base 44 and from
the outer wall of the bearing seat 20 to the printed circuit board
10.
[0023] In at least one embodiment, a number of the first receiving
grooves 50 are two, which are named a first receiving groove
portion 52 and a second receiving groove portion 54. The first
receiving groove portion 52 and the second receiving groove portion
54 are spaced from each other.
[0024] In at least one embodiment, a number of the electric
conductors 60 are two, which are named a first electric conductor
62 and a second electric conductor 64. The first electric conductor
62 is received in the first receiving groove portion 52 and the
second electric conductor 64 is received in the second receiving
groove portion 54.
[0025] The lens component 40 further includes a second lens 43. The
second lens 43 is received in the microscope base 44 and formed
between the first lens 41 and the microscope base 44.
[0026] The first lens 41 can adjust the focal distance by changing
the voltage of the first lens 41. The focal distance of the lights
passing through the first lens 41 will change. The lights passing
through the first lens 41 pass through the second lens 43 and are
converged on the sensor 15 to form a desired image. The first lens
41 cooperates with the second lens 43 to form the desired
image.
[0027] In FIGS. 2-3, the first lens 41 includes at least two
electrodes 42, a filler 45 which is electrically conductive and
deforms under voltage, and a sealing body 411 with a cavity 414.
The sealing body 411 is made from a euphotic material. One end of
each of the electrodes 42 is electrically connected to the electric
conductor 60, the other end of each of the electrodes 42 extends to
the cavity 414 and is electrically connected to the filler 45. The
filler 45 is sealed in the cavity 414.
[0028] In at least one embodiment, a number of the electrodes 42
are two, which are named a first electrode 422 and a second
electrode 424. The first electrode 422 and the second electrode 424
have opposite polarity. The first electrode 422 is electrically
connected to the first electric conductor 62 and the second
electrode 424 is electrically connected to the second electric
conductor 64. The first electrode 422 and the second electrode 424
are electrically connected to the conductive terminals 18 formed on
the printed circuit board 10 to electrically connect to a positive
pole and a negative pole of the printed circuit board 10.
[0029] The filler 45 is at least one of a liquid filler and a solid
filler. In at least one embodiment, the filler 45 is a liquid
filler. The filler 45 includes a first liquid 452 and a second
liquid 454. The first liquid 452 and the second liquid 454 cannot
dissolve with each other. At least one of the first liquid 452 and
the second liquid 454 is electrically conductive and deforms under
voltage to change a shape and a curvature of a contacting surface
between the first liquid 452 and the second liquid 454 thereby
changing the focal distance of light passing through the first lens
41, and to make the lens module 100 has a zoom function.
[0030] FIG. 4 shows an embodiment of an electronic device 200. The
electronic device 200 includes a body 202 and the lens module 100
mounted in the body 202. The electronic device 200 may be a smart
phone, a tablet computer, or the like. In at least one embodiment,
the electronic device 200 is a smart phone.
[0031] With the embodiments described above, the lens module 100
includes a first lens 41 capable of conducting electricity and
producing deformation under voltage to change the focal distance of
lights passing through the first lens 41, and is electrically
connected to printed circuit board 10 by at least two electric
conductors 60, so the lens module 100 can change the focal distance
by the first lens 41, not by a voice coil motor. Furthermore,
defining at least two first receiving grooves 50 in the outer wall
of the microscope base 44 and the outer wall of the bearing seat 20
which are used to receive the electric conductors 60 can avoid
increasing extra volume of the lens module 100, and can protect the
electric conductors 60 from damaging.
[0032] The embodiments shown and described above are only examples.
Many details are often found in the art such as the other features
of a lens module and an electronic device using the lens module.
Therefore, many such details are neither shown nor described. Even
though numerous characteristics and advantages of the present
disclosure have been positioned forth in the foregoing description,
together with details of the structure and function of the present
disclosure, the disclosure is illustrative only, and changes can be
made in the detail, including in matters of shape, size, and
arrangement of the parts within the principles of the present
disclosure, up to and including the full extent established by the
broad general meaning of the terms used in the claims. It will
therefore be appreciated that the embodiments described above can
be modified within the scope of the claims.
* * * * *