CN117014700A - Camera module and wearable equipment - Google Patents
Camera module and wearable equipment Download PDFInfo
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- CN117014700A CN117014700A CN202210443448.5A CN202210443448A CN117014700A CN 117014700 A CN117014700 A CN 117014700A CN 202210443448 A CN202210443448 A CN 202210443448A CN 117014700 A CN117014700 A CN 117014700A
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 37
- 238000004806 packaging method and process Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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Abstract
The application relates to the technical field of camera shooting, and discloses a camera module which comprises an image sensor and a liquid crystal lens which are sequentially arranged along the positive direction of an X axis, wherein the liquid crystal lens comprises a liquid crystal layer and an electrode electrically connected with the liquid crystal layer. Compared with the prior art, the camera module not only has the automatic focusing function, but also has the advantages of light weight, miniaturization and the like, and when the camera module is applied to wearable equipment, the weight of the wearable equipment cannot be greatly increased, so that the user experience is improved. The camera module adopts wafer level packaging, and has simple manufacturing process and low production cost. In addition, the application also discloses wearable equipment adopting the camera module, which has the advantages of light weight, difficult fatigue generation, good user experience and the like.
Description
Technical Field
The application relates to the technical field of camera shooting, in particular to a camera module and wearable equipment.
Background
Existing camera modules typically include an optical lens composed of a plurality of glass or plastic lenses and a driving device composed of a mover, a stator, and a driver, such as a Voice Coil Motor (VCM). Because the optical lens and the driving device both have larger weight, when the existing camera module is applied to the wearable equipment, the weight of the wearable equipment can be greatly increased, so that the wearer is easy to fatigue, and the user experience is influenced.
Disclosure of Invention
The primary objective of the present application is to provide a light, thin and compact camera module.
In order to achieve the above object, the present application provides a camera module including an image sensor and a liquid crystal lens sequentially disposed in a positive direction of an X-axis, the liquid crystal lens including a liquid crystal layer and an electrode electrically connected thereto.
In some embodiments of the application, the camera module further includes a microlens array disposed on the X-axis, and the microlens array is disposed between the image sensor and the liquid crystal lens.
In some embodiments of the application, the camera module further includes an infrared filter disposed on the X-axis, and the infrared filter is disposed between the microlens array and the liquid crystal lens.
In some embodiments of the present application, the infrared filter includes a plurality of filter units, and the filter units are equal in number and are arranged in one-to-one correspondence with the microlens units constituting the microlens array.
In some embodiments of the application, the camera module further includes a zoom lens set disposed on the X-axis, and the zoom lens set is disposed between the image sensor and the liquid crystal lens.
In some embodiments of the present application, the zoom lens group includes a first fixed lens, a compensation lens, a zoom lens, and a second fixed lens sequentially disposed in a positive direction of an X-axis.
In some embodiments of the application, the electrode comprises a first electrode layer and a second electrode layer, the first electrode layer is arranged on a side of the liquid crystal layer facing away from the image sensor, and the second electrode layer is arranged on a side of the liquid crystal layer facing towards the image sensor.
In some embodiments of the present application, the second electrode layer includes a first portion and a second portion located at a periphery of the first portion, the first portion is separated from the second portion, and an operating voltage of the first portion is not equal to an operating voltage of the second portion.
In some embodiments of the application, the camera module employs wafer level packaging.
Another object of the present application is to provide a wearable device, which includes the camera module described above.
Compared with the prior art, the application provides a camera module, which has the beneficial effects that:
the camera module provided by the application adopts the liquid crystal lens which is lighter in weight, thinner in thickness and smaller in volume and does not need mechanical driving, so that the camera module has the advantages of light weight, miniaturization and the like while having an automatic focusing function, and when the camera module is applied to wearable equipment, the weight of the wearable equipment is not greatly increased, and the user experience is promoted.
In addition, the application also provides the wearable equipment, and the camera module is adopted, so that the wearable equipment has the advantages of light weight, difficult fatigue generation, good user experience and the like.
Drawings
Fig. 1 is a schematic structural diagram of a camera module without a microlens array according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a camera module with a microlens array according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a camera module with an infrared filter as a whole according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a camera module with an infrared filter array according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a camera module according to a second embodiment of the present application;
fig. 6 is a schematic structural diagram of a camera module with wide angle function according to a third embodiment of the present application;
fig. 7 is a schematic structural diagram of a camera module with a tele function according to a third embodiment of the present application.
In the figure: 1. an image sensor; 2. a liquid crystal lens; 21. a liquid crystal layer; 22. an electrode; 221. a first electrode layer; 222. a second electrode layer; 222a, a first portion; 222b, a second portion; 3. a microlens array; 31. a microlens unit; 4. an infrared filter; 41. a filter unit; 5. a zoom lens group; 51. a first fixed lens; 52. a compensation lens; 53. a zoom lens; 54. and a second fixed lens.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application.
It should be noted that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance, order, or number of such features, i.e., a "first" feature may be referred to as a "second" feature, a "second" feature may also be referred to as a "first" feature, and a feature defining "first," "second" may explicitly or implicitly include one or more such features. In addition, unless otherwise indicated, the meaning of "a plurality" is two or more.
It is emphasized that in the description of this application, unless clearly indicated and defined otherwise, the term "connected" shall be taken in a broad sense, e.g. it can be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
It should be noted that, in the description of the present application, the X axis is the optical axis of the camera module.
Example 1
Referring to fig. 1, the present embodiment provides a camera module including an image sensor 1 and a liquid crystal lens 2 having a focusing function, which are sequentially disposed along a positive direction of an X-axis. It should be noted that the focusing function of the liquid crystal lens 2 is the prior art, and the present application is not repeated.
Compared with an optical lens formed by a plurality of lenses, the liquid crystal lens 2 is lighter in weight, thinner in thickness and smaller in size, focusing can be achieved only by supplying power to the liquid crystal lens 2, mechanical driving is not needed, and therefore the camera module provided by the embodiment has the advantages of being light and thin, miniaturized and the like when the camera module is applied to wearable equipment, the weight of the wearable equipment cannot be greatly increased, and user experience is improved.
Specifically, the liquid crystal lens 2 includes a liquid crystal layer 21 and an electrode 22 electrically connected thereto, and the electrode 22 is used for connecting to a power source to supply power to the liquid crystal lens 2.
Further, the electrode 22 includes a first electrode layer 221 and a second electrode layer 222, the first electrode layer 221 is disposed on a side of the liquid crystal layer 21 facing away from the image sensor 1, and the second electrode layer 222 is disposed on a side of the liquid crystal layer 21 facing toward the image sensor 1. The first electrode layer 221 is used for connecting with a positive electrode of a power supply, the second electrode layer 222 is used for connecting with a negative electrode of the power supply, or the first electrode layer 221 is used for connecting with the negative electrode of the power supply, and the second electrode layer 222 is used for connecting with the positive electrode of the power supply.
Optionally, referring to fig. 2, the camera module provided in this embodiment further includes a micro lens array 3 disposed on the X-axis, where the micro lens array 3 is disposed between the image sensor 1 and the liquid crystal lens 2, so as to expand the photosensitive range of the camera module. The micro lens array 3 has the characteristics of light weight, small volume and high integration degree, so the camera module is still light, thin and small.
Optionally, referring to fig. 3 and 4, the camera module provided in this embodiment further includes a wafer-level infrared filter 4, where the infrared filter 4 is disposed on the X-axis and between the microlens array 3 and the liquid crystal lens 2. The infrared filter 4 may be a whole piece covering the microlens array 3, as shown in fig. 3, or may be an array composed of a plurality of filter units 41, and the filter units 41 are arranged in equal number and one-to-one correspondence with the microlens units 31 composing the microlens array 3, as shown in fig. 4.
Optionally, the camera module provided in this embodiment adopts wafer level packaging, so that the manufacturing process can be simplified and the production cost can be reduced, thanks to the characteristics of the liquid crystal lens 2 that it is light, thin, small, and does not need mechanical driving.
Example two
Referring to fig. 5, the present embodiment provides a camera module, as a modification of the first embodiment, the second electrode layer 222 of the electrode 22 includes two separated parts, namely a first part 222a and a second part 222b, the second part 222b is located at the periphery of the first part 222a, and the working voltage V of the first part 222a 1 Operating voltage V with second portion 222b 2 Are not equal.
By presetting the working voltages of the first portion 222a and the second portion 222b, the camera module provided in this embodiment may have a wide angle function or a telephoto function. Specifically, if the operating voltage V of the first portion 222a 1 An operating voltage V greater than the second portion 222b 2 I.e. V 1 ＞V 2 The camera module has a wide angle function; if the operating voltage V of the first portion 222a 1 An operating voltage V less than the second portion 222b 2 I.e. V 1 ＜V 2 The camera module has a tele function.
It should be noted that, in the present embodiment, the first portion 222a may be an integral body or may be composed of a plurality of smaller portions. Likewise, the second portion 222 b.
Based on the above structure, the camera module that this embodiment provided is light and thin, small and exquisite not only, but also can realize wide-angle shooting or long burnt shooting, can satisfy the multi-functional demand of wearable equipment.
In addition to the above structure, the other structures and beneficial effects of the camera module provided in this embodiment can refer to the first embodiment, and will not be described in detail later.
Example III
Referring to fig. 6 and 7, the present embodiment provides a camera module including an image sensor 1, a zoom lens group 5, and a liquid crystal lens 2 having a focusing function, which are sequentially disposed in the positive direction of the X-axis.
Specifically, the zoom lens group 5 includes a first fixed lens 51, a compensation lens 52, a zoom lens 53, and a second fixed lens 54, which are sequentially disposed in the positive direction of the X-axis. By presetting the distances between the first fixed lens 51, the compensating lens 52, the zoom lens 53, and the second fixed lens 54, the camera module provided in this embodiment may have a wide angle function or a telephoto function, and the camera module shown in fig. 6 may have a wide angle function, and the camera module shown in fig. 7 may have a telephoto function.
In the present embodiment, the number of the compensation lenses 52 is not limited, and may be one or more. As is the zoom lens 53.
Based on the above structure, the camera module that this embodiment provided is light and thin, small and exquisite not only, but also can realize wide-angle shooting or long burnt shooting, can satisfy the multi-functional demand of wearable equipment.
Optionally, the camera module provided in this embodiment further includes a micro lens array 3 disposed on the X axis, where the micro lens array 3 is disposed between the image sensor 1 and the zoom lens group 5, so as to expand the photosensitive range of the camera module.
Optionally, the camera module provided in this embodiment further includes a wafer-level infrared filter 4, where the infrared filter 4 is disposed on the X-axis and between the microlens array 3 and the zoom lens set 5.
In addition to the above structure, the other structures and beneficial effects of the camera module provided in this embodiment can refer to the first embodiment, and will not be described in detail later.
Example IV
The embodiment provides a wearable device, which includes the camera module in any of the embodiments. Compared with the prior art, the wearable device has the advantages of light weight, difficult fatigue generation, good user experience and the like.
In summary, the application provides a camera module mainly applied to a wearable device, which not only has an automatic focusing function, but also has the advantages of light weight, miniaturization and the like, thereby being beneficial to the realization of light weight of the wearable device and improving user experience. In addition, the camera module adopts wafer level packaging, and has simple manufacturing process and low production cost.
It should be understood that the camera module provided by the application can be applied to not only wearable equipment, but also other camera equipment, such as mobile phones, tablet computers, notebook computers and the like.
The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present application, and these modifications and substitutions should also be considered as being within the scope of the present application.
Claims (10)
1. The camera module is characterized by comprising an image sensor and a liquid crystal lens which are sequentially arranged along the positive direction of an X axis, wherein the liquid crystal lens comprises a liquid crystal layer and an electrode electrically connected with the liquid crystal layer.
2. The camera module of claim 1, further comprising a microlens array disposed on the X-axis, the microlens array disposed between the image sensor and the liquid crystal lens.
3. The camera module of claim 2, further comprising an infrared filter disposed on the X-axis, the infrared filter disposed between the microlens array and the liquid crystal lens.
4. A camera module according to claim 3, wherein said infrared filter includes a plurality of filter units, said filter units being equal in number and disposed in one-to-one correspondence with the number of microlens units constituting said microlens array.
5. The camera module of claim 1, further comprising a zoom lens group disposed on the X-axis, the zoom lens group disposed between the image sensor and the liquid crystal lens.
6. The camera module of claim 5, wherein the zoom lens group includes a first fixed lens, a compensation lens, a zoom lens, and a second fixed lens sequentially disposed in a positive direction of an X-axis.
7. The camera module of claim 1, wherein the electrode comprises a first electrode layer and a second electrode layer, the first electrode layer being disposed on a side of the liquid crystal layer facing away from the image sensor, the second electrode layer being disposed on a side of the liquid crystal layer facing toward the image sensor.
8. The camera module of claim 7, wherein the second electrode layer comprises a first portion and a second portion located at a periphery of the first portion, the first portion is separated from the second portion, and an operating voltage of the first portion is not equal to an operating voltage of the second portion.
9. The camera module of any of claims 1-8, wherein the camera module employs wafer level packaging.
10. A wearable device comprising a camera module according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210443448.5A CN117014700A (en) | 2022-04-25 | 2022-04-25 | Camera module and wearable equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210443448.5A CN117014700A (en) | 2022-04-25 | 2022-04-25 | Camera module and wearable equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117014700A true CN117014700A (en) | 2023-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210443448.5A Pending CN117014700A (en) | 2022-04-25 | 2022-04-25 | Camera module and wearable equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117014700A (en) |
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2022
- 2022-04-25 CN CN202210443448.5A patent/CN117014700A/en active Pending
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