CN214586176U

CN214586176U - Lens module and electronic device

Info

Publication number: CN214586176U
Application number: CN202023074643.0U
Authority: CN
Inventors: 宋建超; 陈信文; 丁盛杰; 李静伟; 黄丁男
Original assignee: Jincheng Sanying Precision Electronics Co ltd
Current assignee: Jincheng Sanying Precision Electronics Co ltd
Priority date: 2020-12-19
Filing date: 2020-12-19
Publication date: 2021-11-02
Anticipated expiration: 2030-12-19

Abstract

The application provides a lens module, which comprises a circuit board, a photosensitive chip, an optical filter, a lens seat and a lens, wherein the photosensitive chip is installed on the circuit board, the lens seat is covered with the photosensitive chip, the lens seat is installed on the circuit board, the optical filter is installed in the lens seat and is arranged above the photosensitive chip, the optical filter and the photosensitive chip are arranged at intervals, the lens is installed in the lens seat, and the lens is positioned above the photosensitive chip; the lens seat is characterized in that a dust absorption film capable of absorbing dust is arranged at the joint of the inside of the lens seat and the lens, and the dust absorption film is positioned above the optical filter. The application provides a camera lens module can prevent dust and prevent impurity and absorb the astigmatism, promotes the module and shoots the effect. The application also provides an electronic device using the lens module.

Description

Lens module and electronic device

Technical Field

The utility model relates to an electron and optical device field especially relate to a lens module and electron device.

Background

Most of lens modules comprise a lens, a lens seat, a light filter, a photosensitive chip and a circuit board, wherein the lens is arranged on the lens seat, the lens seat and the photosensitive chip are arranged on the circuit board, and the light filter is arranged above the photosensitive chip. In order to prevent dust and impurities from entering the lens module and influencing the imaging quality, the lens seat, the optical filter, the photosensitive chip and the circuit board form a closed space. However, when the lens is mounted on the lens mount, dust and impurities are easily generated in the assembly process, the dust and impurities are affected to generate stains when falling on the optical filter, and the dust and impurities are lifted and moved to the optical filter in the vibration or falling process of the lens module, so that the image is also stained.

Therefore, in the process of assembling the lens holder, the lens holder and the circuit board are generally cleaned and then assembled to prevent dust from remaining inside the lens module. However, since the dust is extremely small in size and is filled in the air, even if the lens holder is cleaned during the assembly process, the dust in the air may be accumulated around the lens holder, which may affect the imaging quality.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a can solve the lens module of above-mentioned problem, this lens module can prevent dust to can promote the module and shoot the effect.

In addition, an electronic device having the lens module is also needed.

The utility model provides a lens module, including a circuit board, a sensitization chip, a light filter, a microscope base and a camera lens, sensitization chip installs on the circuit board, the microscope base cover is established and is accommodated sensitization chip, and the microscope base is installed on the circuit board, the light filter is installed in the microscope base, and locates the top of sensitization chip, the light filter with the sensitization chip is separated by the setting, the camera lens is installed in the microscope base, and the camera lens is located sensitization chip top; the lens seat is characterized in that a dust absorption film capable of absorbing dust is arranged at the joint of the inside of the lens seat and the lens, and the dust absorption film is positioned above the optical filter.

Optionally, wherein the dusting film is a water-based protective film.

Optionally, the lens base includes a base and a boss, the base includes a first surface, the boss is formed by extending the first surface upwards, a first through hole is formed on the first surface, and the first through hole is correspondingly formed above the optical filter; the boss is provided with a second through hole for accommodating the lens, and the second through hole is communicated with the first through hole.

Optionally, the first surface comprises an interior region located within the boss, the dusting membrane being provided on the interior region.

Optionally, a first thread groove is formed in the inner side wall of the boss, a second thread groove is formed in the outer side wall of the lens, and the first thread groove is matched with the second thread groove.

Optionally, the dust absorption film is arranged in the first thread groove.

Optionally, the optical filter is fixed on the lower surface of the inner area of the lens base through an adhesive layer, the optical filter, the photosensitive chip, the lens base and the circuit board enclose a first enclosed space, and the photosensitive chip and the electronic element on the circuit board are all contained in the first enclosed space.

Optionally, the base further includes a first sidewall formed by four edges of the first surface extending downward and vertically, the first surface and the first sidewall enclose a second receiving space, the first sidewall is mounted on the circuit board, and the second receiving space receives the photosensitive chip and the optical filter.

Optionally, the lens includes a first lens portion and a second lens portion, the diameter of the second lens portion is smaller than that of the first lens portion, and a plurality of flanges are outwards protruded from the outer side wall of the joint of the first lens portion and the second lens portion; the second thread groove is formed in the outer side wall of the first lens portion, the first lens portion is mounted in the second through hole of the boss and supported on the boss, and the second lens portion is located outside the boss.

The utility model also provides an use the electron device of camera lens module.

The utility model provides a camera lens module is through establishing the dust absorption membrane in the mirror seat and camera lens junction, but dust absorption and astigmatism promote the module and shoot the effect.

Drawings

Fig. 1 is a perspective view of a lens module according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the lens module shown in fig. 1.

Fig. 3 is another exploded view of the lens module shown in fig. 1.

Fig. 4 is a schematic cross-sectional view along the line I-I of the lens module shown in fig. 1.

Fig. 5 is a perspective view of the lens holder shown in fig. 3.

Fig. 6 is a schematic sectional view of the carrier seat shown in fig. 5 along the line II-II.

Fig. 7 is an enlarged schematic view of the lens holder shown in fig. 6 at a.

Fig. 8 is a schematic view of an electronic device using the lens module according to an embodiment of the present invention.

Description of the main elements

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

To further explain the technical means and effects adopted by the present application to achieve the intended purpose, the following detailed description is made on the lens module provided by the present application in conjunction with the accompanying drawings and the preferred embodiments.

Referring to fig. 1 to 4, a lens module 100 according to a preferred embodiment of the present invention includes a circuit board 1, a photo sensor chip 2, a filter 3, a lens holder 4, and a lens 5. The light sensing chip 2 is installed on the circuit board 1, the light filter 3 is installed on the circuit board 1 and is arranged above the light sensing chip 2, the light filter 3 and the light sensing chip 2 are arranged at intervals, the lens base 4 is installed on the circuit board 1 and accommodates the light filter 3 and the light sensing chip 2, and the lens 5 is installed on the lens base 4.

Referring to fig. 8, in the present embodiment, the circuit board 1 is a flexible board, a hard board or a rigid-flexible board. Preferably, the circuit board 1 is a rigid-flex board, and the circuit board 1 includes a first hard board portion 10, a second hard board portion 12 and a soft board portion 14, and the soft board portion 14 is connected between the first hard board portion 10 and the second hard board portion 12. The first hard board portion 10 is in a rectangular frame shape, the photosensitive chip 2 and a plurality of electronic elements 16 are arranged on the surface 11 of the first hard board portion, the photosensitive chip 2 is installed in the center of the first hard board portion 10, and the electronic elements 16 are divided into two rows and are respectively arranged beside two opposite sides of the photosensitive chip 2. The second hard plate portion 12 has an electrical connection portion 13 mounted thereon. When the lens module 100 is applied to an electronic device 200, the electrical connection portion 13 is used for signal transmission between the lens module 100 and other components of the electronic device 200. The electrical connection 13 may be a connector or a gold finger. The photosensitive chip 2, the electronic element 16 and the electrical connection part are all located on the same surface of the circuit board 1.

In the present embodiment, the photosensitive chip 2 has a rectangular shape. The electronic component 16 may be a resistor, a capacitor, a diode, a transistor, a relay, a charged erasable programmable read-only memory (EEPROM), or other passive components.

The optical filter 3 is fixed on the lens base 4 through an adhesive layer and is positioned above the circuit board 1. The optical filter 3 is arranged above the photosensitive chip 2 at intervals, and the two optical filters are arranged at intervals. The optical filter 3, the photosensitive chip 2 and the circuit board 1 enclose a first enclosed space 18, and the photosensitive chip 2 and the electronic components on the circuit board 1 are all contained in the first enclosed space 18. The first receiving space 18 plays a role of protecting the circuit board 1, and prevents dust and impurities from entering the lens module and affecting the imaging quality.

Referring to fig. 5 to 7, the lens holder 4 is mounted on the circuit board 1 by a curing adhesive, and includes a frame-shaped base 40 and a circular boss 42, wherein the boss 42 is formed by extending the surface of the base 40 upward.

The lens base 4 is made of metal or plastic. Preferably, the lens base 4 is made of aluminum alloy.

The base 40 includes a first surface 400 and a first sidewall 402 formed by four sides of the first surface 400 extending vertically downward, wherein the first surface 400 and the first sidewall 402 enclose a second receiving space 404. The first sidewall 402 is mounted on the circuit board 1, and the second receiving space 404 receives the electronic component 16, the photo sensor chip 2 and the filter 3 on the circuit board 1. A square first through hole 406 is opened in the first surface 400, and the first through hole 406 is correspondingly disposed above the optical filter 3.

The boss 42 is cylindrical and extends upwards along the inscribed circle of the first surface 400; the boss 42 comprises a second surface 420 far away from the first surface 400, a circular second through hole 422 is formed in the second surface 420, and the second through hole 422 penetrates from the second surface 420 to the first surface 400 of the base 40 and is communicated with the first through hole 406; the first through hole 406 is aligned with the filter 3 below when the lens holder 4 is mounted on the circuit board 1. The inner sidewall 421 of the boss 42 is formed with a plurality of first screw grooves 423, the first screw grooves 423 are matched with the lens 5, and the second through hole 422 receives the lens 5.

The first surface 400 includes an inner region 408 disposed inside the boss 42, the first through hole 406 is disposed on the inner region 408, and a dust absorption film 409 is attached to the inner region 408. The dust absorption film 409 can be sprayed on the surface of the inner area 408, or can be made into a whole film and laid on the surface of the inner area 408. The filter 3 is mounted on the lower surface 407 of the inner region 408.

The dust absorption film 409 is a water-based protective film, a compact and durable protective film layer is formed on the water base, and the dust absorption film can absorb suspended dust impurities, fibers and the like and purify air. The dust absorption film 409 can effectively absorb dust impurities generated in the installation, locking and assembling processes of the lens 5 and the lens holder 4, and can also absorb dust impurities generated in the vibration or falling process of the lens module 100. The dust absorption film 409 has lasting viscosity, can effectively adsorb dust and impurities, can prevent mechanical impact and oxidation, and has high adhesion strength and high temperature resistance.

When external light passes through camera lens 5, light is at the inside continuous refraction of microscope base 4, will reflect to photosensitive chip 2 departments once more finally, causes the facula, if the inside dust absorption membrane 409 that is equipped with of microscope base 4, it is silicon dioxide titanium dioxide complex film for the bottom material, has fine absorption to the astigmatism, can not have the facula, can effectively avoid the astigmatism to the harmful effects of camera lens module, promotes the module and shoots the effect.

The dust absorption film 409 may be disposed on the first screw groove 423 of the boss 42, may be sprayed into the first screw groove 423, or may be formed as a whole film and laid inside the first screw groove 423.

The inner region 408 of the first surface 400 is a connection point of the lens 5 and the lens holder 4, and when the lens 5 is screwed into the lens holder 4, the lower end of the inner region 408 is located; the first thread groove 423 of the boss 42 is also a connection part of the lens 5 and the lens holder 4, and when the lens 5 is screwed into the lens holder 4, the first thread groove 423 is connected with the lens 5. A dust absorption film 409 is arranged at the connection position of the lens seat 4 and the lens 5, dust impurities can be absorbed, astigmatism can be absorbed, and the module shooting effect is improved.

The lens 5 is accommodated in the second through hole 422 of the lens holder 4, and the lens 5 and the lens holder 4 are formed by assembling or integrally forming. In the present embodiment, the lens 5 and the lens holder 4 are formed by assembling. The lens 5 includes a first lens portion 51 and a second lens portion 52. The first lens portion 51 and the second lens portion 52 are integrally formed, and the diameter of the second lens portion 52 is smaller than that of the first lens portion 51. The outer side wall of the junction of the first lens portion 51 and the second lens portion 52 is provided with a plurality of flanges 53 protruding outwards, when the first lens portion 51 is inserted into the second through hole 422 in the lens holder 4, the flanges 53 are supported on the second surface 420 of the boss 42, and the second lens portion 52 is disposed outside the boss 42.

A second thread groove 512 is formed on the lower half portion of the outer side wall 510 of the first lens portion 51, and the second thread groove 512 is matched with the first thread groove 423 on the boss 42, so that the first lens portion 51 is assembled and fixed inside the boss 42.

The first lens part 51 of the lens 5 is installed in the boss 42 and connected to the filter 3, and the second lens part 51 protrudes out of the boss 42, and a protection film 54 is installed on the top thereof to protect the lens 5.

The lens module 100 can be applied to various electronic devices 200 having a camera module, such as mobile phones, wearable devices, computer devices, vehicles or monitoring devices.

The application provides lens module 100 has following beneficial effect: through be in the inside dust absorption membrane 409 that is equipped with of microscope base 4, dust absorption membrane 409 is water base protective film, the dust impurity that can adsorb effectively that camera lens 5 and microscope base 4 installation lock attach and equipment in-process produced, also can adsorb the dust impurity that the camera lens module 100 vibrations or falls the in-process and produce simultaneously. Meanwhile, the dust absorption film 409 is arranged inside the lens base 4, so that astigmatism can be absorbed, the adverse effect of stray light on the lens module can be effectively avoided, and the module shooting effect is improved.

The above description is only an embodiment optimized for the lens module, but the practical application process is not limited to this embodiment. Other modifications and changes to the technical idea of the present application should be apparent to those skilled in the art and are intended to fall within the scope of the claims of the present application.

Claims

1. A lens module comprises a circuit board, a photosensitive chip, an optical filter, a lens base and a lens, wherein the photosensitive chip is installed on the circuit board, the lens base covers and contains the photosensitive chip, the lens base is installed on the circuit board, the optical filter is installed in the lens base and is arranged above the photosensitive chip, the optical filter and the photosensitive chip are arranged at intervals, the lens is installed in the lens base, and the lens is located above the photosensitive chip; the lens base is characterized in that a dust absorption film capable of absorbing dust is arranged at the joint of the inside of the lens base and the lens, and the dust absorption film is positioned above the optical filter.

2. The lens module as recited in claim 1, wherein the dust-absorbing film is a water-based protective film.

3. The lens module as claimed in claim 2, wherein the lens holder comprises a base and a boss, the base comprises a first surface, the boss is formed by extending the first surface upwards, a first through hole is formed on the first surface, and the first through hole is correspondingly formed above the optical filter; the boss is provided with a second through hole for accommodating the lens, and the second through hole is communicated with the first through hole.

4. The lens module as recited in claim 3, wherein the first surface comprises an interior region located within the boss, the dust extraction film being disposed on the interior region.

5. The lens module as claimed in claim 4, wherein the inner sidewall of the boss has a first thread groove, and the outer sidewall of the lens has a second thread groove, the first thread groove and the second thread groove being engaged with each other.

6. The lens module as claimed in claim 5, wherein the dust absorption film is disposed in the first thread groove.

7. The lens module as claimed in claim 6, wherein the optical filter is fixed on the lower surface of the inner region of the lens holder by an adhesive layer, the optical filter, the photo sensor chip, the lens holder and the circuit board enclose a first enclosed space, and the photo sensor chip and the electronic components on the circuit board are all accommodated in the first enclosed space.

8. The lens module as claimed in claim 7, wherein the base further includes a first sidewall extending vertically downward from four sides of the first surface, the first surface and the first sidewall defining a second receiving space, the first sidewall being mounted on the circuit board, the second receiving space receiving the photo-sensing chip and the optical filter.

9. The lens module as claimed in claim 8, wherein the lens includes a first lens portion and a second lens portion, the diameter of the second lens portion is smaller than that of the first lens portion, and a plurality of flanges are protruded outwardly from the outer side wall of the connection between the first lens portion and the second lens portion; the second thread groove is formed in the outer side wall of the first lens portion, the first lens portion is mounted in the second through hole of the boss, and the second lens portion is located outside the boss.

10. An electronic device using the lens module according to any one of claims 1 to 9.