U.S. patent application number 15/832596 was filed with the patent office on 2019-05-02 for camera module.
The applicant listed for this patent is HON HAI PRECISION INDUSTRY CO., LTD., TRIPLE WIN TECHNOLOGY(SHENZHEN) CO.LTD.. Invention is credited to SHIN-WEN CHEN.
Application Number | 20190129281 15/832596 |
Document ID | / |
Family ID | 66213910 |
Filed Date | 2019-05-02 |
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United States Patent
Application |
20190129281 |
Kind Code |
A1 |
CHEN; SHIN-WEN |
May 2, 2019 |
CAMERA MODULE
Abstract
A durable camera module comprises a lens holder and a lens
barrel. An opening is defined in the lens holder. The opening
passes through the lens holder along an axial direction of the lens
holder. At least one notch is defined in a side wall of the lens
holder. The at least one notch extends radially through the side
wall of the lens holder. The lens barrel is received in the
opening. A first adhesive layer is formed between the lens barrel
and lens holder. The first adhesive layer is positioned at an end
of the lens holder and surrounds the lens barrel. A second adhesive
layer is formed in each of the at least one notch, the second
adhesive layer is bonded to the lens barrel.
Inventors: |
CHEN; SHIN-WEN; (Tu-Cheng,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
TRIPLE WIN TECHNOLOGY(SHENZHEN) CO.LTD.
HON HAI PRECISION INDUSTRY CO., LTD. |
Shenzhen
New Taipei |
|
CN
TW |
|
|
Family ID: |
66213910 |
Appl. No.: |
15/832596 |
Filed: |
December 5, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H05K 2201/10015
20130101; H05K 2201/10424 20130101; H05K 1/181 20130101; H04N
5/2254 20130101; G03B 17/12 20130101; H05K 2201/10151 20130101;
H05K 2201/10121 20130101; G02B 7/025 20130101; H05K 2201/10409
20130101 |
International
Class: |
G03B 17/12 20060101
G03B017/12; H05K 1/18 20060101 H05K001/18; G02B 7/02 20060101
G02B007/02; H04N 5/225 20060101 H04N005/225 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 31, 2017 |
TW |
106137670 |
Claims
1. A camera module comprising: a lens holder defining an opening
and at least one notch, the opening passing through the lens holder
along an axial direction of the lens holder, each of the at least
one notch passing through a sidewall of the lens holder along a
radial direction of the lens holder; and a lens barrel, the lens
barrel received in the opening; wherein a first adhesive layer is
formed between the lens barrel and lens holder, the first adhesive
layer is positioned at an end of the lens holder and surrounds the
lens barrel, a second adhesive layer is formed in each of the at
least one notch, the second adhesive layer is bonded to the lens
barrel, and the second adhesive layer is adhered to the first
adhesive layer.
2. (canceled)
3. The camera module of claim 1, wherein the first adhesive layer
is annular, and the second adhesive layer is stripe-shaped.
4. The camera module of claim 1, wherein a first screw thread is
formed on an outer surface of the lens barrel, a second screw
thread is formed on an inner surface of the lens holder, the second
screw thread is positioned on an entire inner surface of the lens
holder, and the first thread is screwed with the second screw
thread.
5. The camera module of claim 1, wherein a first screw thread is
formed on an outer surface of the lens barrel, a third screw thread
is formed on an inner surface of the lens holder, the third screw
thread is only positioned at a portion of the inner surface of the
lens holder, and the first thread is screwed with the third screw
thread.
6. The camera module of claim 1, further comprising a substrate,
wherein the lens holder is fixed on the substrate.
7. The camera module of claim 6, wherein the lens holder is fixed
to the substrate by screw.
8. The camera module of claim 6, further comprising an image
sensor, wherein the image sensor is fixed on the substrate.
9. The camera module of claim 6, further comprising a capacitor,
wherein the image sensor is fixed on the substrate, and the
capacitor is electrically connected with the substrate.
10. The camera module of claim 6, wherein the substrate is a
circuit board.
11. The camera module of claim 1, wherein a third adhesive layer is
formed between the lens holder and the substrate, and the third
adhesive layer surrounds the lens holder and fills a gap between
the lens holder and the substrate.
Description
FIELD
[0001] The subject matter relates to a camera module.
BACKGROUND
[0002] A camera module generally comprises a substrate, an image
sensor, a lens holder, and a lens barrel. The image sensor and the
lens holder are fixed on the substrate. The lens barrel is received
in the lens holder. The lens barrel and the lens holder are usually
fixed by glue. However, the adhesion force between the lens barrel
and the lens holder is not strong enough, which may cause the lens
barrel to be separated from the lens holder during transport,
assembling, or reliability testing, resulting in deterioration of
the image quality of camera module. Improvements in the art are
preferred.
BRIEF DESCRIPTION OF THE DRAWINGS
[0003] Implementations of the present technology will now be
described, by way of example only, with reference to the attached
figures, wherein:
[0004] FIG. 1 is a diagram of a first exemplary embodiment of a
camera module.
[0005] FIG. 2 is an exploded diagram of the camera module of FIG.
1.
[0006] FIG. 3 is an exploded diagram of a second exemplary
embodiment of a camera module.
[0007] FIG. 4 is an exploded diagram of a third exemplary
embodiment of a camera module.
DETAILED DESCRIPTION
[0008] 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 exemplary
embodiments described herein. However, it will be understood by
those of ordinary skill in the art that the exemplary embodiments
described herein can be practiced without these specific
details.
[0009] 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 exemplary embodiments
described herein. The drawings are not necessarily to scale and the
proportions of certain parts may be exaggerated to better
illustrate details and features of the present disclosure.
[0010] One definition that applies throughout this disclosure will
now be presented.
[0011] The term "substantially" is defined to be essentially
conforming to the particular dimension, shape, or other feature
that the term modifies, such that the component need not be exact.
For example, "substantially rectangular" means that the object
resembles a rectangle, but can have one or more deviations from a
true rectangle.
[0012] 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, assembly,
series, and the like.
[0013] FIGS. 1-2 illustrate a first exemplary embodiment of a
camera module 100. The camera module 100 comprises a substrate 10,
an image sensor 20, a capacitor 30, a lens holder 40, and a lens
barrel 50.
[0014] The substrate 10 is a circuit board. The substrate 10
comprises an upper surface 12 and a lower surface 14. The upper
surface 12 and the lower surface 14 are opposite to each other. In
the exemplary embodiment, the upper surface 12 is parallel to the
lower surface 14. Two mounting holes 16 are defined in the
substrate 10.
[0015] The image sensor 20 is positioned on the upper surface 12,
and is electrically connected to the substrate 10.
[0016] The capacitor 30 is positioned on the upper surface 12, and
is electrically connected to the substrate 10.
[0017] The lens holder 40 is fixed on the upper surface 12. In the
exemplary embodiment, the lens holder 40 is made of plastic. The
image sensor 20 is received in the lens holder 40. The lens holder
40 comprises a base 42 and a housing portion 44. The housing
portion 44 is connected to the base 42.
[0018] The base 42 is substantially rectangular. The base 42
comprises a top surface 422 and a bottom surface 424. The top
surface 422 and the bottom surface 424 are opposite to each other.
In the exemplary embodiment, the top surface 422 is parallel to the
bottom surface 424. A first opening 420 is defined in the base 42.
The first opening 420 extends through the top surface 422 and the
bottom surface 424. The first opening 420 is a rectangular. The
first opening 420 receives the image sensor 20.
[0019] The housing portion 44 is substantially cylindrical. A
second opening 440 is defined in the housing portion 44. The
housing portion 44 receives the lens barrel 50. The second opening
440 extends through the housing portion 44. The second opening 440
is cylindrical. The second opening 440 connects with the first
opening 420.
[0020] At least one notch 45 is defined in the housing portion 44.
Each notch 45 extends radially through the sidewall of the housing
portion 44. Each notch 45 is defined at one end of the housing
portion 44 away from the base 42. In the exemplary embodiment, the
notch 45 is rectangular, and does not penetrate the other end of
the housing portion 44 near the base 42.
[0021] The lens holder 40 also comprises two fixing portions 46.
The two fixing portions 46 are positioned on opposite sides of the
base 42. A through hole 460 is defined in the each of the fixing
portions 46. The shape, the size, and the position of the through
hole 460 may substantially correspond to the shape, the size, and
the position, respectively, of the mounting hole 16.
[0022] The lens barrel 50 is made of a metallic material. The lens
barrel 50 comprises a first portion 52 and a second portion 54. The
first portion 52 and the second portion 54 are cylindrical. The
second portion 54 connects with the first portion 52. The second
portion 54 is perpendicular to the first portion 52. A diameter of
the second portion 54 is smaller than a diameter of the first
portion 52. The second portion 54 is received in the second opening
440, and has a shape corresponding to that of the second opening
440.
[0023] The camera module 100 also comprises two screws 60. The two
screws 60 can lock the lens holder 40 to the substrate 10.
[0024] During assembly, the lens holder 40 is fixed to the
substrate 10 first. At this time, the image sensor 20 and the
capacitor 30 are fixed and electrically connected to the substrate
10. The two through holes 460 are aligned with the two mounting
holes 16, and the screws 60 go through the mounting holes 16 and
the through holes 460, thus, the substrate 10 and the lens holder
40 are fixed together. At this time, the image sensor 20 is
received in the first opening 420, and is located at a central
position of the first opening 420. Glue is coated onto the
periphery of the base 42 of the substrate 10 to form a third
adhesive layer 70. The third adhesive layer 70 surrounds the base
42 and fills a gap between the base 42 and the substrate 10 for
sealing between the lens holder 40 and the substrate 10. Then, the
second portion 54 is placed in the second opening 440, and a
position of the lens barrel 50 is adjusted that the center axis of
the lens barrel 50 is aligned with the middle of the imaging region
of the image sensor 20. Glue is coated onto an end of the housing
portion 44 away from the base 42 to form a first adhesive layer 80.
The first adhesive layer 80 is substantially annular. The first
adhesive layer 80 surrounds the second portion 54, and is adhered
to the second portion 54. Finally, glue is infilled in each notch
45 to form a second adhesive layer 90, thereby completing the
assembly of the camera module 100. The second adhesive layer 90 is
substantially stripe-shaped. In the exemplary embodiment, the
second adhesive layer 90 is connected to the first adhesive layer
80. The second adhesive layer 90 is perpendicular to the first
adhesive layer 80.
[0025] Referring to FIG. 3, a camera module 200 of a second
exemplary embodiment is provided. In the camera module 200, a first
screw thread 56 is formed on the outer surface of the second
portion 54 of the lens barrel 50. The first screw thread 56
surrounds the second portion 54. A second screw thread 442 is
formed on the inner surface of the housing portion 44. The second
screw thread 442 is positioned at the entire inner surface of the
housing portion 44. The first screw thread 56 is screwed with the
second screw thread 442 to fix the lens barrel 50 in the lens
holder 40.
[0026] Referring to FIG. 4, a camera module 300 of a third
exemplary embodiment is provided. In the camera module 300, a first
screw thread 56 is formed on the outer surface of the second
portion 54 of the lens barrel 50. The first screw thread 56
surrounds the second portion 54. A third screw thread 444 is formed
on the inner surface of the housing portion 44. The third screw
thread 444 is only positioned at a portion of inner surface of the
housing portion 44. The first screw thread 56 is screwed with the
third screw thread 444 to fix the lens barrel 50 in the lens holder
40.
[0027] In the camera modules 100, 200, 300, the second adhesive
layer 90 and the first adhesive layer 80 cooperatively enhance a
bonding strength between the lens barrel 50 and the lens holder 40.
In addition, the at least one notch 45 can expand along a radial
direction of the lens holder 40, when the lens holder 40 is
connected to the lens barrel 50, which decreases a torsion between
the lens barrel 50 and the lens holder 40.
[0028] The embodiments shown and described above are only examples.
Many details are often found in the art such as the other features.
Therefore, many such details are neither shown nor described. Even
though numerous characteristics and advantages of the present
technology have been set forth in the foregoing description,
together with details of the structure and function of the present
disclosure, the disclosure is illustrative only, and changes may be
made in the detail, especially 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 may
be modified within the scope of the claims.
* * * * *