CN112987224A - Lens module and electronic equipment - Google Patents
Lens module and electronic equipment Download PDFInfo
- Publication number
- CN112987224A CN112987224A CN202110347158.6A CN202110347158A CN112987224A CN 112987224 A CN112987224 A CN 112987224A CN 202110347158 A CN202110347158 A CN 202110347158A CN 112987224 A CN112987224 A CN 112987224A
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- Prior art keywords
- lens
- barrel
- lens group
- lens assembly
- assembly
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- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 210000003128 head Anatomy 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 206010070834 Sensitisation Diseases 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Studio Devices (AREA)
Abstract
The application discloses camera lens module and electronic equipment belongs to electronic equipment technical field. The lens module includes: the photosensitive chip is arranged on the circuit board; the first lens assembly is connected with the circuit board and comprises a first lens group, and the first lens group is positioned at the second end of the first lens assembly; the second lens assembly is sleeved outside the first lens assembly and comprises a second lens group, the second lens group is positioned at the first end of the second lens assembly, the first end of the second lens assembly is the end far away from the circuit board, the second lens group covers the first lens group, and the second lens assembly can move along the axial direction of the first lens assembly and is far away from or close to the photosensitive chip; the first lens group, the second lens group and the photosensitive chip are coaxially arranged, and the area of the second lens group is larger than that of the first lens group.
Description
Technical Field
The application belongs to the technical field of electronic equipment, and particularly relates to a lens module and electronic equipment.
Background
Nowadays, with the continuous development of the mobile phone industry, smart phones can integrate more and more functions, and most mobile phone manufacturers put the eyes on the photographing function of the mobile phones under the condition that the integration function of the mobile phones is difficult to be improved, hope that the user experience is enhanced through the photographing function, and a larger selling point is obtained. At present, as the pixel of the mobile phone is continuously improved, a user can obtain a clearer high-quality image. However, in practice, there is a problem that it is difficult to clearly photograph a distant image, or a picture is easily blurred after enlarging a distant image photographed at a low magnification. Therefore, the image pickup module is expected to have a large-stroke zoom capability.
In order to make the camera module have a large-stroke zooming capability, the current solution is as follows: the telescopic lens camera module with the small head and the large bottom is arranged in the mobile phone, but due to the fact that the exposed gaps of the lens module are more, the dust entering risk of the module is increased.
Disclosure of Invention
The embodiment of the application provides a lens module and electronic equipment, can solve current telescopic lens module of making a video recording because of the lens module exposes the gap more, has increased the problem of the dirt risk of advancing of module.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a lens module, including:
the photosensitive chip is arranged on the circuit board;
the first lens assembly is connected with the circuit board, and comprises a first lens group which is positioned at the second end of the first lens assembly;
the second lens assembly is sleeved outside the first lens assembly and comprises a second lens group, the second lens group is located at the first end of the second lens assembly, the first end of the second lens assembly is the end far away from the circuit board, the second lens group covers the first lens group, and the second lens assembly can move along the axial direction of the first lens assembly and is far away from or close to the photosensitive chip;
the first lens group, the second lens group and the photosensitive chip are coaxially arranged, and the area of the second lens group is larger than that of the first lens group.
In a second aspect, an embodiment of the present application provides an electronic device, including the lens module.
In this application embodiment, through the area setting that is greater than the area of the first camera lens group of the first camera lens subassembly that is fixed in on the circuit board with the area of the second camera lens group of the second camera lens subassembly that can move, when the camera lens subassembly does not stretch out, do not have too much gap to expose at the surface of camera lens module, and then can reduce the dirt risk of advancing of camera lens subassembly.
Drawings
Fig. 1 is a schematic structural diagram of a lens module according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a first lens barrel according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a second barrel according to an embodiment of the present application;
fig. 4 is a second schematic structural diagram of a lens module according to an embodiment of the present application;
FIG. 5 is a schematic diagram illustrating a state of the lens module with a two-stage retractable structure after retraction;
fig. 6 is a schematic view of a zoom lens module with a two-stage telescopic structure;
fig. 7 is an enlarged view of the dashed box in fig. 6.
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 some, but not all, embodiments of the present application. 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.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The electronic device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
As shown in fig. 1, an embodiment of the present application provides a lens module, including:
a photosensitive chip 210 disposed on the circuit board 100;
a first lens assembly 220, a first end of the first lens assembly 220 is connected to the circuit board 100, the first lens assembly 220 includes a first lens group 222, and the first lens group 222 is located at a second end of the first lens assembly 220;
a second lens assembly 230 sleeved outside the first lens assembly 220, wherein the second lens assembly 230 includes a second lens group 232, the second lens group 232 is located at a first end of the second lens assembly 230, the first end of the second lens assembly 230 is an end far away from the circuit board 100, the second lens group 232 covers the first lens group 222, and the second lens assembly 230 can move along an axial direction of the first lens assembly 220 and is far away from or close to the sensor chip 210;
the first lens group 222, the second lens group 232 and the photo sensor chip 210 are coaxially disposed, and the area of the second lens group 232 is larger than that of the first lens group 222.
It should be noted that, because the size of the movable lens component of the existing retractable lens module is smaller than that of the fixed lens component, that is, the lens module is a structure with a small head and a large bottom, the gaps of the lens module with the structure are more, which increases the risk of dust entering the inside of the lens module; and adopt the big little structure in bottom of head in this application, the mode of setting up of the lens module of this kind of structure, when the lens subassembly does not stretch out, do not have too much gap to expose at the surface of lens module, can reduce the inside risk of entering dirt of lens module.
Further, by enclosing the photosensitive chip 210 inside the first lens assembly 220, the photosensitive chip 210 can be further prevented from contacting dust entering the inside of the electronic device.
It should be noted that the photosensitive chip 210 in the embodiment of the present application mainly functions to receive the optical signal transmitted to the inside of the module through the lens assembly, and then the optical signal is processed to become an electrical signal through the inside of the photosensitive chip, and the circuit board 100 is mainly used for transmitting the electrical signal.
It should be further noted that the first lens assembly 220 includes:
a first lens barrel 221, a first end of the first lens barrel 221 is fixed on the circuit board 100, and the first lens group 222 is fixed at a second end of the first lens barrel 221.
It should be noted that, in a specific application, the first barrel 221 is usually fixed on the circuit board 100 by a curing adhesive.
Further, the second lens assembly 230 includes:
the second lens barrel 231 is sleeved outside the first lens barrel 221, the second lens group 232 is fixed at a first end of the second lens barrel 231, a driving device 300 is arranged on an inner wall of a second end of the second lens barrel 231, and the second lens barrel 231 moves along the axial direction of the first lens barrel 221 under the driving of the driving device 300;
the second end of the second barrel 231 is an end close to the circuit board 100.
Specifically, as further shown in fig. 2 and 3, in order to realize the axial movement of the second barrel 231 along the first barrel 221, a ball and a ball limiting groove are usually adopted to cooperate, a ball limiting groove 201 is provided on an outer wall of the first barrel 221, a guide groove 202 along the axial direction is provided on an inner wall of the second barrel 231, and the second barrel 231 moves along the axial direction of the first barrel 221 by cooperation of a ball 400 provided in the ball limiting groove 201 and the guide groove 202 under the driving of the driving device 300.
It should be noted that, in order to ensure that the second barrel 231 can move uniformly, four guide grooves 202 are generally disposed on the inner wall of the second barrel 231, the four guide grooves 202 are uniformly distributed on the inner wall of the second barrel 231, and each guide groove 202 corresponds to one driving device 300; two ball limiting grooves 201 are arranged on the outer wall of the first lens barrel 221 corresponding to each guide groove 202.
It should be noted that, for the lens module with the one-stage telescopic structure, the second barrel 231 is the outermost barrel, and the outer side of the second barrel 231 does not need to be matched with other barrels, so the ball limiting groove 201 is not disposed on the outer wall of the second barrel 231.
It should be noted that the balls 400 in the embodiment of the present application play a role in positioning and guiding, so that the movement of the second barrel is always performed along the axial direction.
It should be further noted that the driving device 300 is an ultrasonic piezoelectric motor, and the ultrasonic piezoelectric motor is an ultrasonic micro-vibration that forms the mass point on the surface of the elastic body on the piezoelectric ceramic into an elliptical track, and the micro-vibration drives the second barrel 231 to move continuously through the friction action between the micro-vibration and the outer wall of the first barrel 221; because of the volume of this ultrasonic wave piezoelectric motor is less, through set up this ultrasonic wave piezoelectric motor in the camera lens module, can effectively reduce the size of camera lens module, and then can reduce the camera lens module and to the occupation in electronic equipment space.
It should be further noted that the lens module further includes:
the filter 500 mainly functions to filter out ultraviolet light and infrared light in the nature, so that light reaching the photosensitive chip 210 through the lens is within the range of visible light of human eyes, and the problem of color cast of imaging is avoided;
wherein, first lens cone 221 is inside to be provided with filter fixed station 2211, filter 500 is fixed in on the filter fixed station 2211, just filter 500 with sensitization chip 210 coaxial setting.
Note that, in a normal case, the filter fixing base 2211 is disposed on an inner wall of the first barrel 221, that is, a circle of bosses are disposed on the inner wall of the first barrel 221, and the bosses are used for fixing the filter 500.
It should be further noted that, for the lens module with the primary telescopic structure, the first lens group 222 plays a role of transmitting and refracting light, the first lens barrel 221 plays a role of supporting the first lens group 222 and the optical filter 500, the second lens group 232 plays a role of collecting, transmitting and refracting light, and the second lens barrel 231 plays a role of supporting the second lens group 232; the driving device 300 is used for pushing the second barrel 231 to reach a corresponding position, so that the imaging focal plane coincides with the photosensitive chip 210.
It should be noted that the first barrel 221 and the second barrel 231 are cylindrical structures, and the first lens group 222 and the second lens group 232 are configured to have a shape corresponding to a cross section of the cylindrical structures in order to be respectively matched with the first barrel 221 and the second barrel 231. For example, if the first and second barrels 221 and 231 are circular cylindrical structures, the first and second lens groups 222 and 232 are disposed in a circular structure; if the first barrel 221 and the second barrel 231 are square tubular structures, the first lens group 222 and the second lens group 232 are set to be square structures; if the first and second barrels 221 and 231 are hexagonal tubular structures, the first and second lens groups 222 and 232 are arranged in a hexagonal structure. It should be noted that, no matter what shape the first lens group 222 and the second lens group 232 are set, the first lens group 222, the second lens group 232, the filter 500 and the photo sensor chip 210 need to be coaxially set, that is, the centers of the first lens group 222, the second lens group 232, the filter 500 and the photo sensor chip 210 are located on the same straight line.
As can be seen from the above description, the lens module with one-stage telescopic structure may be a multi-stage telescopic structure, that is, a two-stage telescopic structure or a telescopic structure with more than two stages, as further shown in fig. 4, when the lens module is a multi-stage telescopic structure, the lens module according to another embodiment of the present application further includes:
at least one third lens assembly 240 sleeved outside the second lens assembly 230, wherein the third lens assembly 240 includes a third lens group 242, the third lens group 242 is located at a first end of the third lens assembly 240, the first end of the third lens assembly 240 is an end away from the circuit board 100, the third lens group 242 covers the second lens group 232, and the third lens assembly 240 can move along the axial direction of the second lens assembly 230;
the third lens group 242 and the second lens group 232 are coaxially disposed, and the area of the third lens group 242 is larger than that of the second lens group 232.
Specifically, the third lens assembly 240 includes:
a third barrel 241 sleeved outside the second barrel 231, wherein the third lens group 242 is fixed to a first end of the third barrel 241, an inner wall of a second end of the third barrel 241 is provided with a driving device 300, and the third barrel 241 moves along the axial direction of the second barrel 231 and is far away from or close to the photosensitive chip 210 under the driving of the driving device 300;
the second end of the third lens barrel 241 is an end close to the circuit board 100;
specifically, a ball limiting groove is disposed on an outer wall of the second barrel 231, a guide groove 202 is disposed on an inner wall of the third barrel 241 along an axial direction, and the third barrel 241 moves along the axial direction of the second barrel 231 by cooperation of a ball 400 disposed in the ball limiting groove 201 and the guide groove 202 under the driving of the driving device 300.
Fig. 5 is a schematic diagram of the lens module with a two-stage telescopic structure after being contracted, in this case, the bottom ends of the second lens barrel 231 and the third lens barrel 241 are both flush with the bottom end of the first lens barrel 211, and in practical implementation, the bottom ends of the second lens barrel 231 and the third lens barrel 241 can be abutted against the circuit board 100, and at this time, the ball 400 is far away from the driving device 300. Fig. 6 is a rear view of the zoom lens module with a two-stage telescopic structure, in which case the bottom ends of the second barrel 231 and the third barrel 241 are far away from the circuit board 100, as shown in fig. 7, and the ball 400 is close to the driving device 300.
It should be further noted that, when the number of the third lens assemblies 240 is at least two, the at least two third lens assemblies 240 are sequentially sleeved along a direction away from the second lens assembly 230, and the areas of the third lens groups 242 of the at least two third lens assemblies 240 are gradually increased along a direction from the second lens assembly 230 to the direction away from the second lens assembly 230.
Specifically, for two adjacently sleeved third lens assemblies 240, the outer wall of the third barrel 241 of one third lens assembly 240 with a larger area of the third lens group 242 is provided with a ball limiting groove 201, the inner wall of the third barrel 241 of the other third lens assembly 240 is provided with a driving device 300 and a guide groove 202 along the axial direction, and the two adjacently sleeved third lens assemblies 240 realize relative axial movement by the matching of the ball 400 arranged in the ball limiting groove 201 and the guide groove 202 under the driving of the driving device 300; the specific arrangement relationship of the two third lens assemblies 240 that are adjacently sleeved can refer to the arrangement of the second lens assembly 230 and the first lens assembly 220.
In summary, the dust inlet risk of the lens module can be reduced by arranging the structure with the large head and the small bottom; and the setting of ultrasonic wave piezoelectric motor can reduce the overall dimension of lens module to this solves the camera module and influences the problem that other devices are piled up because of the size is too big.
The embodiment of the application also provides an electronic device which comprises the lens module.
It should be noted that, the electronic device provided with the lens module can reduce the dust entering risk inside the electronic device, and meanwhile, the occupation of the internal space of the electronic device can be reduced due to the small size of the lens module.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. A lens module, comprising:
the photosensitive chip is arranged on the circuit board;
the first lens assembly is connected with the circuit board, and comprises a first lens group which is positioned at the second end of the first lens assembly;
the second lens assembly is sleeved outside the first lens assembly and comprises a second lens group, the second lens group is located at the first end of the second lens assembly, the first end of the second lens assembly is the end far away from the circuit board, the second lens group covers the first lens group, and the second lens assembly can move along the axial direction of the first lens assembly and is far away from or close to the photosensitive chip;
the first lens group, the second lens group and the photosensitive chip are coaxially arranged, and the area of the second lens group is larger than that of the first lens group.
2. The lens module as recited in claim 1, wherein the first lens assembly comprises:
the first end of the first lens barrel is fixed on the circuit board, and the first lens group is fixed at the second end of the first lens barrel.
3. The lens module as recited in claim 2, wherein the second lens assembly comprises:
the second lens group is fixed at the first end of the second lens barrel, a driving device is arranged on the inner wall of the second end of the second lens barrel, and the second lens barrel moves along the axial direction of the first lens barrel under the driving of the driving device;
the second end of the second lens barrel is close to one end of the circuit board.
4. The lens module as claimed in claim 3, wherein the outer wall of the first barrel is provided with a ball-limiting groove, the inner wall of the second barrel is provided with a guide groove along the axial direction, and the second barrel moves along the axial direction of the first barrel under the driving of the driving device through the cooperation of the balls arranged in the ball-limiting groove and the guide groove.
5. The lens module as claimed in claim 3, further comprising:
the third lens assembly comprises a third lens group, the third lens group is positioned at the first end of the third lens assembly, the first end of the third lens assembly is one end far away from the circuit board, the third lens group covers the second lens group, and the third lens assembly can move along the axial direction of the second lens assembly;
the third lens group and the second lens group are coaxially arranged, and the area of the third lens group is larger than that of the second lens group.
6. The lens module as recited in claim 5, wherein the third lens assembly comprises:
the third lens group is fixed at the first end of the third lens cone, a driving device is arranged on the inner wall of the second end of the third lens cone, and the third lens cone moves along the axial direction of the second lens cone under the driving of the driving device and is far away from or close to the photosensitive chip;
the second end of the third lens barrel is close to one end of the circuit board.
7. The lens module as claimed in claim 6, wherein a ball-limiting groove is formed on an outer wall of the second barrel, and a guide groove is formed on an inner wall of the third barrel along an axial direction, and the third barrel moves along the axial direction of the second barrel by cooperation of a ball disposed in the ball-limiting groove and the guide groove under the driving of the driving device.
8. The lens module as claimed in claim 7, wherein when the number of the third lens assemblies is at least two, at least two of the third lens assemblies are sequentially sleeved along a direction away from the second lens assembly, and the area of the third lens group of the at least two of the third lens assemblies gradually increases along a direction from the second lens assembly to the second lens assembly.
9. The lens module as claimed in claim 8, wherein for two adjacently sleeved third lens assemblies, the outer wall of the third barrel of one third lens assembly with a larger area of the third lens group is provided with a ball limiting groove, the inner wall of the third barrel of the other third lens assembly is provided with a driving device and a guide groove along the axial direction, and the two adjacently sleeved third lens assemblies realize relative axial movement by the cooperation of the balls arranged in the ball limiting groove and the guide groove under the driving of the driving device.
10. A lens module according to claim 3, 4, 6, 7 or 9, wherein said driving means is an ultrasonic piezoelectric motor.
11. The lens module as claimed in claim 2, wherein the first barrel is fixed on the circuit board by a curing adhesive.
12. The lens module as claimed in claim 2, further comprising:
a filter plate;
the first lens cone is internally provided with a filter fixing table, the filter is fixed on the filter fixing table, and the filter and the photosensitive chip are coaxially arranged.
13. An electronic device comprising the lens module according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110347158.6A CN112987224A (en) | 2021-03-31 | 2021-03-31 | Lens module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110347158.6A CN112987224A (en) | 2021-03-31 | 2021-03-31 | Lens module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112987224A true CN112987224A (en) | 2021-06-18 |
Family
ID=76338667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110347158.6A Pending CN112987224A (en) | 2021-03-31 | 2021-03-31 | Lens module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112987224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115225792A (en) * | 2022-07-05 | 2022-10-21 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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| CN115225792B (en) * | 2022-07-05 | 2024-03-22 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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Application publication date: 20210618 |
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| RJ01 | Rejection of invention patent application after publication |