WO2022188795A1

WO2022188795A1 - Camera module and electronic device

Info

Publication number: WO2022188795A1
Application number: PCT/CN2022/079882
Authority: WO
Inventors: 段俊杰
Original assignee: 维沃移动通信有限公司
Priority date: 2021-03-11
Filing date: 2022-03-09
Publication date: 2022-09-15
Also published as: CN113055621B; CN113055621A

Abstract

Disclosed in the present application are a camera module and an electronic device. The camera module comprises an image sensor, which comprises: a substrate, and a plurality of visible light photosensitive units and a plurality of infrared photosensitive units, which are uniformly arranged on the substrate; a first light-transmitting structure, which covers the image sensor; and a laser transmitter, which is arranged on one side of the image sensor, wherein the laser transmitter is used for transmitting light outward, and the infrared photosensitive units are used for receiving the light reflected by an obstacle and determining a focusing distance according to the light.

Description

Camera Modules and Electronic Equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application with the application number 202110264532.6 filed on March 11, 2021 and the invention title is "Camera Module and Electronic Equipment", which is fully incorporated into this application by reference.

technical field

The application belongs to the technical field of electronic equipment, and specifically relates to a camera module and an electronic equipment.

Background technique

With the continuous development of the photographic function of mobile phones, the number of cameras also increases. Since each camera has an auto-focus function, a focus sensor 102' is separately set to pass the focus sensor 102'. To measure the distance of the object to be photographed, however, the focus sensor 102' is set separately, as shown in FIG. 1, because it is set side by side with the camera, it will occupy a limited space of the mobile phone, and its optical axis is not consistent with the camera, so it cannot be accurate When calculating the focus point, under some special angles, as shown in FIG. 2 , there will be two non-overlapping areas, in which the focus sensor 102 ′ cannot be used to assist the camera to focus, which greatly affects the user experience.

SUMMARY OF THE INVENTION

The present application aims to provide a camera module and an electronic device to at least solve the problem of focus offset.

In order to solve the above technical problems, this application is implemented as follows:

In a first aspect, an embodiment of the present application proposes a camera module, including: an image sensor, the image sensor includes a substrate, and a plurality of visible light photosensitive units and a plurality of infrared photosensitive units uniformly disposed on the substrate; The structure is covered on the image sensor, and the light is received by the image sensor through the first light-transmitting structure; the laser transmitter is arranged on one side of the image sensor, the laser transmitter is used to emit light outward, and the infrared photosensitive unit is used to receive the light passing through obstacles. The reflected light and the focusing distance are determined based on the light.

The camera module provided according to the embodiment of the present application includes an image sensor, a first light-transmitting structure, and a laser transmitter, wherein a visible light photosensitive unit and an infrared photosensitive unit are simultaneously integrated in the image sensor, on the one hand, it can effectively solve the problem of the prior art On the other hand, it can improve the coincidence degree of the field of view angle of the laser focus sensor and the visible light photosensitive unit in the image sensor, thereby improving the accuracy of the focus point, which is more convenient for users to use the camera model. Focusing requirements when shooting in groups.

Specifically, the image sensor includes a substrate. By arranging the visible light photosensitive unit and the infrared photosensitive unit on the substrate uniformly, the focusing function can be integrated on the basis that the image sensor itself receives external light to realize imaging. The uniform setting of the photosensitive units can also improve the uniformity of imaging and focusing. When focusing, the calculation circuit corresponding to the infrared photosensitive unit can be used to achieve fast focusing through accurate ranging. In addition, by arranging the first light-transmitting structure at one end of the image sensor, and arranging the laser emitter at one side of the image sensor, the light from the external environment will enter the image sensor through the first light-transmitting structure, and be uniformly arranged on the substrate. The visible light photosensitive unit of the cloth receives it to achieve a relatively complete imaging. Further, the first light-transmitting structure covers the image sensor. Specifically, the first light-transmitting structure is arranged at one end of the image sensor. On the other hand, the first light-transmitting structure can also protect the image sensor and play a shielding role. Further, a laser transmitter that can emit light is provided on one side of the image sensor. When the light emitted by the laser transmitter hits an obstacle, it will be reflected back to the first light-transmitting structure by the obstacle, and then pass through. It is received by the infrared photosensitive unit through the first light-transmitting structure, so as to realize the integrity of the focusing optical path.

It should be noted that the first light-transmitting structure and the laser emitter are not arranged in the same orientation of the image sensor, wherein the first light-transmitting structure is arranged at the end, and the laser emitter is arranged at the side, which is more convenient for the laser emitter to emit The side-by-side light rays can enter the visible light photosensitive unit through the first light-transmitting structure at the end after being reflected by the obstacle.

Those skilled in the art can understand that when starting to focus, the laser transmitter will emit light in a specific frequency band, including but not limited to infrared laser beams, and the timing will start at this time, and the infrared photosensitive unit will receive the reflection from the photographed object or obstacle. At this time, stop timing, and by calculating the speed of light and time, the distance between the camera module and the obstacle can be obtained. At this time, the distance can be sent to the focus controller in the camera module to control the focus motor. Run to the focal plane to achieve focus.

Further, the visible light photosensitive unit is a complementary metal oxide semiconductor, that is, CMOS (Complementary Metal Oxide Semiconductor), and the infrared photosensitive unit is a single-photon avalanche diode, that is, SPAD (Single Photon Avalanche Diode).

In the second aspect, an embodiment of the present application proposes an electronic device, comprising: a body; the camera module according to any one of the above-mentioned embodiments, which is arranged on the body, wherein the camera module is a front camera module of the electronic device and/or rear camera module.

The electronic device provided according to the embodiment of the present application includes a main body and the camera module of any of the above-mentioned embodiments. By arranging the camera module on the main body, the image formed by the camera module can be sent to the main body, so as to facilitate subsequent The secondary editing and sharing of the electronic device, in which the camera module can be a front module or a rear module, so that the front camera of the electronic device has the anti-shake function, or the rear camera has the anti-shake function, or In addition, both the front and rear dual cameras have the anti-shake function of any of the above embodiments.

Since the electronic device includes the camera module of any of the above embodiments, it has the beneficial effects of the camera module of any of the above-mentioned embodiments, which will not be repeated here.

It is worth noting that there are various types of electronic devices, such as mobile phones, tablet computers, e-readers and other devices that require camera modules.

Additional aspects and advantages of the present application will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 is a schematic structural diagram of a camera and a focus sensor in the prior art;

Fig. 2 is the structural representation of the angle of view in the prior art;

3 is a schematic structural diagram of a camera module according to an embodiment of the present application;

4 is a schematic structural diagram of a camera module according to an embodiment of the present application;

5 is a schematic structural diagram of a camera module according to an embodiment of the present application;

6 is a schematic structural diagram of a camera module according to an embodiment of the present application;

7 is a schematic structural diagram of a camera module according to an embodiment of the present application;

8 is a schematic structural diagram of a camera module according to an embodiment of the present application;

9 is a schematic structural diagram of a camera module according to an embodiment of the present application;

10 is a spectral response diagram of a first filter and a second filter according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Reference number:

100: camera module; 102: image sensor; 1022: substrate; 1024: infrared photosensitive unit; 104: visible light photosensitive unit; 1042: first imaging unit; 1044: second imaging unit; 1046: third imaging unit; 106 : filter structure; 1062: light barrier bracket; 1064: first filter element; 1066: second filter element; 108: first light-transmitting structure; 110: laser emitter; 112: second light-transmitting structure; 200 : electronic equipment; 210: body.

102': Focus sensor.

Detailed ways

The following will describe in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as a limitation on the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The features of the terms "first" and "second" in the description and claims of this application may expressly or implicitly include one or more of such features. In the description of this application, unless stated otherwise, "plurality" means two or more. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial, The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying the indicated devices or elements. It must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present application.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood in specific situations.

The camera module and the electronic device according to the embodiments of the present application will be described below with reference to FIGS. 3 to 11 .

As shown in FIG. 3 , the present application provides an embodiment of a camera module 100 , including: an image sensor 102 . The image sensor 102 includes a substrate 1022 and a plurality of visible light photosensitive units 104 and infrared light sensitive units uniformly disposed on the substrate 1022 The photosensitive unit 1024; the first light-transmitting structure 108 is covered on the image sensor 102, and the light is received by the image sensor 102 through the first light-transmitting structure 108; the laser transmitter 110 is arranged on one side of the image sensor 102, and the laser transmitter 110 It is used to emit light outward, and the infrared photosensitive unit 1024 is used to receive the light reflected by the obstacle and determine the focusing distance according to the light.

The camera module 100 provided according to the embodiment of the present application includes an image sensor 102 , a first light-transmitting structure 108 and a laser emitter 110 , wherein the visible light photosensitive unit 104 and the infrared photosensitive unit 1024 are simultaneously integrated in the image sensor 102 . On the one hand, it can effectively solve the extra space required for arranging the laser focus sensor in the prior art, and on the other hand, it can also improve the degree of coincidence of the field angles of the laser focus sensor and the visible light photosensitive unit 104 in the image sensor 102, thereby improving the accuracy of the focus point. It is more favorable for the user's focusing requirements when using the camera module 100 for shooting.

Of course, it can be understood that in this embodiment, since the infrared photosensitive unit 1024 is integrated into the image sensor 102, on the one hand, the focus point and the imaging point can be macroscopically overlapped, which solves the problem of focus point shift in the traditional solution, and on the other hand In terms of high integration and space saving, it adopts point-to-point array laser focusing, which is fast and accurate.

Specifically, the image sensor 102 includes a substrate 1022. By arranging the visible light photosensitive unit 104 and the infrared photosensitive unit 1024 on the substrate 1022 uniformly, the image sensor 102 can integrate the focusing function on the basis that the image sensor 102 itself receives external light to realize imaging. Since the infrared photosensitive unit 1024 and the visible light photosensitive unit 104 are evenly arranged, the uniformity of imaging and focusing can also be improved. When focusing, the calculation circuit corresponding to the infrared photosensitive unit 1024 can be used to achieve fast focusing through accurate ranging. In addition, by covering the image sensor 102 with the first light-transmitting structure 108 and arranging the laser emitter 110 on one side of the image sensor 102, the light from the external environment will enter the image sensor 102 through the first light-transmitting structure 108, It is received by the visible light photosensitive units 104 evenly arranged on the substrate 1022 to achieve relatively complete imaging. Further, the first light-transmitting structure 108 is disposed at one end of the image sensor 102. On the one hand, the first light-transmitting structure 108 has a certain light transmittance, which can meet the light input requirement of the image sensor 102 to receive light entering from the end. On the other hand, the first light-transmitting structure 108 can also protect the image sensor 102 and play a shielding role. Further, a laser transmitter 110 capable of emitting light is disposed on one side of the image sensor 102. When the light emitted by the laser transmitter 110 reaches an obstacle, it will be reflected back to the first light-transmitting structure by the obstacle. 108, and then pass through the first light-transmitting structure 108 to be received by the infrared photosensitive unit 1024, so as to realize the integrity of the focusing optical path.

It should be noted that the first light-transmitting structure 108 and the laser emitter 110 are not arranged in the same orientation of the image sensor 102 , wherein the first light-transmitting structure 108 is arranged at the end, the laser emitter 110 is arranged at the side, and more It is convenient for the laser emitters 110 to emit side-by-side light rays, and after being reflected by obstacles, they can enter the visible light photosensitive unit 104 through the first light-transmitting structure 108 at the end.

Those skilled in the art can understand that, when starting to focus, the laser transmitter 110 will emit light in a specific frequency band, including but not limited to an infrared laser beam, at this time, the timing is started, and the photographed object or obstacle is received through the infrared photosensitive unit 1024 The reflected light stops timing at this time. By calculating the speed of light and time, the distance between the camera module 100 and the obstacle can be obtained. At this time, the distance can be sent to the focus controller in the camera module 100. To control the focus motor to run to the focal plane to achieve focus.

Further, the visible light photosensitive unit 104 is a complementary metal oxide semiconductor, that is, a CMOS (Complementary Metal Oxide Semiconductor), and the infrared photosensitive unit 1024 is a single-photon avalanche diode, that is, a SPAD (Single Photon Avalanche Diode).

It can be understood that since the infrared photosensitive unit 1024 uses SPAD, which is a single-photon avalanche diode made based on CMOS technology, compared with the CMOS visible light photosensitive unit 104, the SPAD avalanche diode can generate an avalanche phenomenon (photocurrent) under the irradiation of a single photon. The SPAD can receive weak laser light, and the SPAD readout circuit will calculate the time it takes for the laser light to be transmitted from the time it is sent out, to recover the transmitted time, so as to accurately measure the distance and achieve fast focusing.

Further, the visible light photosensitive unit and the infrared photosensitive unit are arranged in an array; or the visible light photosensitive unit is arranged around the infrared photosensitive unit.

The visible light photosensitive unit and the infrared photosensitive unit can be set in an array or in a surround setting according to the actual design requirements. It can be understood that the light received by the visible light photosensitive unit can be of different types, and it can include a variety of sub photosensitive units, so a plurality of sub photosensitive units and infrared photosensitive units can be arranged in an array, or a plurality of sub photosensitive units can be arranged around the infrared photosensitive unit. Arrangement, if a plurality of sub-photosensitive units are used as a whole, the visible light photosensitive unit array can be arranged on the infrared photosensitive unit, or a plurality of visible light photosensitive units can be wound around the infrared photosensitive unit as a whole.

Further, each infrared photosensitive unit 1024 is disposed corresponding to at least one visible light photosensitive unit 104 . It may be that each infrared photosensitive unit 1024 is arranged in a matrix with the first imaging unit, the second imaging unit and the third imaging unit in one visible light photosensitive unit 104 .

Each infrared photosensitive unit 1024 can be set corresponding to one visible light photosensitive unit 104 or a plurality of visible light photosensitive units 104 according to requirements. Generally, the visible light photosensitive unit 104 and the infrared photosensitive unit 1024 are uniformly arranged and exist in the form of an array. In a specific implementation In the example, the visible light photosensitive unit 104 and the focusing unit D are arranged in an equal ratio of 1:1. In fact, the focusing function does not require as high a number of photosensitive points as the number of focusing points, so another adjustment arrangement can also be provided. The photosensitive units 1024 and the visible light photosensitive units 104 are evenly arranged in a certain ratio, such as 1:2. Alternatively, in another specific embodiment, they are arranged in a ratio of 1:4, 1:8, etc., so as to ensure accurate focusing At the same time, without sacrificing photosensitivity.

Further, as shown in FIG. 9 , the visible light photosensitive unit 104 specifically includes: a first imaging unit 1042 , a second imaging unit 1044 and a third imaging unit 1046 , wherein the first imaging unit 1042 , the second imaging unit 1044 and the third imaging unit 1046 The imaging colors of the imaging unit 1046 are different.

The visible light photosensitive unit 104 includes three imaging units, specifically a first imaging unit 1042, a second imaging unit 1044 and a third imaging unit 1046 with different imaging colors. Generally, the imaging colors of the three imaging units are optical three primary colors: red, For green and blue, by setting different visible light photosensitive units 104 , different degrees of light reception can be improved, which is more convenient for imaging.

Of course, the arrangement of the three imaging units can be adjusted according to specific usage requirements and imaging requirements, such as diamond arrangement, RGB-Delta arrangement, or even matrix arrangement.

4 and 5, the visible light photosensitive units 104 are arranged in an array, and the first imaging unit 1042, the second imaging unit 1044 and the third imaging unit 1046 in each visible light photosensitive unit 104 are RGB (red green blue) unit.

Specifically, as shown in FIG. 5 , a blank area is provided between the two third imaging units 1046 .

Further, the camera module 100 further includes: a filter structure 106 disposed between the visible light photosensitive unit 104 and the first light-transmitting structure 108 , and the filter structure 106 is used for filtering the light entering the image sensor 102 .

By arranging the filter structure 106 between the visible light photosensitive unit 104 and the first light-transmitting structure 108, the light entering the image sensor 102 can be filtered. On the other hand, by filtering light, the visible light photosensitive unit 104 can obtain specific light, which is more convenient for imaging.

The light entering the image sensor 102 includes the light reflected back by the obstacle and the external ambient light used for shooting.

Further, the light filtering structure 106 specifically includes: a light shielding bracket 1062, and the light shielding bracket 1062 includes a plurality of accommodating cavities formed in the light shielding bracket 1062, and each accommodating cavity is provided with a visible light photosensitive unit 104 or an infrared photosensitive unit 1024; The first filter element 1064 is disposed on the side of the light-shielding bracket 1062 close to the first light-transmitting structure 108. The first filter element 1064 is used for filtering infrared light, wherein the first filter element 1064 is connected to the infrared photosensitive unit 1024. The corresponding position is hollowed out; the second filter 1066 is arranged between the first filter 1064 and the first light-transmitting structure 108, and the second filter 1066 is arranged in a one-to-one correspondence with the accommodating cavity to filter the incident light. Light in the chamber.

The filter structure 106 includes a light-shielding support 1062, a first filter 1064 and a second filter 1066, wherein the light-shielding support 1062 includes a plurality of accommodating cavities, and each visible light photosensitive unit 104 is correspondingly disposed in one accommodating cavity, That is to say, through the arrangement of multiple accommodating cavities, the mutual influence of two adjacent visible light photosensitive units 104 can be reduced, so as to ensure the stability of imaging. The first filter element 1064 is disposed on the side of the light-shielding bracket 1062 close to the first light-transmitting structure 108 , that is, when the light enters from the outside to the inside, it will pass through the first light-transmitting structure 108 and the first filter element 1064 in sequence. After the light is injected into the light-shielding bracket 1062, the first filter element 1064 can filter the light after the light passes through the first light-transmitting structure 108. Further, the first filter element 1064 filters infrared light to ensure visible light. Normal photosensitive imaging of the photosensitive unit 104 . The second filter 1066 is arranged on the side of the first filter 1064 away from the first light-transmitting structure 108, so as to improve the pertinence of the received light of the visible light photosensitive unit 104 arranged in the accommodating cavity, that is, according to the second The light that the visible light photosensitive unit 104 can receive will also be different depending on the filtering degree of the light filter 1066 , which is more conducive to the imaging of different imaging units in each visible light photosensitive unit 104 . In addition, the position of the first filter 1064 opposite to the infrared photosensitive unit 1024 needs to be hollowed out to ensure that the infrared photosensitive unit 1024 can receive light normally. It can be understood that the light is generally infrared, and the first filter 1064 The main function of the filter is to filter out infrared rays, so the first filter element 1064 is hollowed out to ensure that the infrared photosensitive unit 1024 can completely receive infrared rays, so as to facilitate the process of ranging and focusing.

For the second filter element 1066, the second filter element 1066 is disposed at the end of the light-shielding bracket 1062 away from the first light-transmitting structure 108, that is, the second filter element 1066 and the first filter element 1064 are respectively It is arranged at both ends of the light-shielding bracket 1062. On this basis, each second optical filter 1066 is arranged correspondingly to an accommodating cavity, so as to filter different light entering the accommodating cavity, so as to realize the filtering of the light entering the accommodating cavity. Normal imaging of the visible light photosensitive unit 104 .

The spectral response diagrams of the first filter element 1064 and the second filter element 1066 are shown in FIG. 10 , corresponding to four second filter elements 1066 and one first filter element 1064 respectively, wherein the first filter element The component 1064 is used to filter out the infrared light in the CMOS visible light photosensitive unit 104 as a whole, but it is hollowed out above the SPAD focusing single light, that is to say, it only filters out the infrared light of the CMOS visible light photosensitive unit 104 and retains the SPAD infrared light sensitivity Infrared light of cell 1024.

Further, a visible light photosensitive unit is arranged in the accommodating cavity, and the filtering wavelength of the second filter element arranged on the accommodating cavity corresponds to the visible light photosensitive unit in the accommodating cavity; The filter wavelength of the second filter element is arranged corresponding to the infrared photosensitive unit in the accommodating cavity.

When a visible light photosensitive unit, that is, a first imaging unit, a second imaging unit or a third imaging unit, is arranged in the accommodating cavity, a second filter element with different filter effects can be arranged according to different imaging units. The imaging unit, the second imaging unit and the third imaging unit are respectively the imaging of RGB three primary colors, then the first imaging unit can filter the light of other wavelengths except red, and the second imaging unit can filter the light of other wavelengths except green, The third imaging unit may filter light of wavelengths other than blue.

When the infrared photosensitive unit is arranged in the accommodating cavity, the second filter only needs to retain the transmitted infrared light, and filter and reject the light of other frequency bands.

Further, the camera module 100 further includes: a second light-transmitting structure 112 sleeved outside the first light-transmitting structure, and the second light-transmitting structure 112 covers the laser emitter 110 .

In addition to the first light-transmitting structure, a second light-transmitting structure 112 can also be provided. By arranging the second light-transmitting structure 112 on the laser emitter 110 and covering the laser emitter 110, the light emitted by the laser emitter 110 will pass through the laser emitter 110. The second light-transmitting structure 112 is directed to the obstacle, and the light reflected by the obstacle needs to enter the image sensor 102 through the first light-transmitting structure to realize ranging focusing and imaging. At this time, the second light-transmitting structure can be made 112 is used as a supplementary light path to provide light support for imaging.

Of course, in another embodiment, the second light-transmitting structure 112 is eliminated, which is more convenient for the appearance design and structural layout when applied to a product.

In the light entering direction of the camera module 100 , the first light-transmitting structure 108 covers the image sensor 102 , and the laser emitter 110 is disposed outside the first light-transmitting structure 108 .

By covering the image sensor 102 with the first light-transmitting structure 108 in the light entering direction of the camera module 100 , all the light entering the image sensor 102 needs to pass through the first light-transmitting structure 108 first. Disposing the laser emitter 110 outside the first transparent structure 108 can reduce the influence of the position of the laser emitter 110 on the light entering the first transparent structure 108 . Certainly, for the laser transmitter 110, the above-mentioned position setting can also reduce the influence of the first light-transmitting structure 108 on the penetrability of the light emitted by the laser transmitter 110, and improve the imaging and focusing quality.

In one embodiment, as shown in FIG. 6 , the number of the laser transmitters 110 is one, which is provided on the peripheral side of the image sensor 102 .

Further, as shown in FIG. 7 , the number of laser emitters 110 is multiple, and the multiple laser emitters 110 are evenly distributed on the peripheral side of the image sensor 102 .

A plurality of laser transmitters 110 can be provided according to requirements. By arranging the plurality of laser transmitters 110 evenly around the central axis of the image sensor 102, that is, the plurality of laser transmitters 110 are evenly distributed on the peripheral side of the image sensor 102, the To greatly improve the accuracy of focusing, the laser emitters 110 are arranged in a circle around the visible light photosensitive unit 104 . In fact, in order to meet the minimum requirements for focusing, the number of laser transmitters 110 is one, and the system can work normally when placed on any side of the visible light photosensitive unit 104. However, by setting multiple laser transmitters 110 above, it will be more It is conducive to accurate focusing, that is, it is easier to achieve fast focusing.

Further, as shown in FIG. 8 , the number of image sensors 102 is multiple, the number of laser transmitters 110 is one, and the infrared photosensitive unit 1024 in each image sensor 102 can receive light.

By arranging multiple image sensors 102 , one laser transmitter 110 can be used to realize the imaging of multiple image sensors 102 , in other words, two or even more such cameras are placed side by side, sharing the middle laser transmitter 110 , and multiple cameras can be formed. The camera matrix capable of laser focusing can reduce the number of laser transmitters 110 , and reduce unnecessary equipment costs and location space.

As shown in FIG. 11 , another embodiment of the present application proposes an electronic device 200 , which includes: a body 210 ; the camera module 100 in any of the above embodiments is disposed on the body 210 , wherein the camera module 100 It is the front camera module and/or the rear camera module of the electronic device 200 .

The electronic device 200 provided according to the embodiment of the present application includes the main body 210 and the camera module 100 of any of the above embodiments. By disposing the camera module 100 on the main body 210, the image formed by the camera module 100 can be sent to on the main body 210 to facilitate subsequent secondary editing and sharing, wherein the camera module 100 may be a front module or a rear module, so that the front camera of the electronic device 200 has an anti-shake function, or The rear camera has an anti-shake function, and optionally, both the front and rear dual cameras have the anti-shake function of any of the above embodiments.

Since the electronic device 200 includes the camera module 100 of any one of the above embodiments, it has the beneficial effects of the camera module 100 of any one of the above embodiments, which will not be repeated here.

It is worth noting that the types of the electronic device 200 are various, for example, the electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted electronic device, a Mobile Internet Device (MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) devices, robots, wearable devices, ultra-mobile personal computer (UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc. , it can also be a server, a network attached storage (NAS), a personal computer (PC), a television (television, TV), a teller machine or a self-service machine and other equipment that requires a camera module. This application implements Examples are not specifically limited.

According to the camera module and the electronic device according to the embodiments of the present application, the visible light photosensitive unit and the infrared photosensitive unit are simultaneously integrated in the image sensor. On the one hand, the additional space required for setting the laser focus sensor in the prior art can be effectively solved, and on the other hand It can also improve the degree of coincidence of the field of view of the visible light photosensitive unit in the laser focus sensor and the image sensor, thereby improving the accuracy of the focus point, and is more conducive to the user's focus requirements when using the camera module for shooting.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present application, The scope of the application is defined by the claims and their equivalents.

Claims

A camera module, comprising:

an image sensor, the image sensor includes a substrate and a plurality of visible light photosensitive units and a plurality of infrared photosensitive units uniformly arranged on the substrate;

a first light-transmitting structure, covering the image sensor, and light is received by the image sensor through the first light-transmitting structure;

A laser transmitter, located on one side of the image sensor, is used to emit light outward, and the infrared photosensitive unit is used to receive the light reflected by the obstacle and determine the focusing distance according to the light .
The camera module according to claim 1, wherein,

The visible light photosensitive unit and the infrared photosensitive unit are arranged in an array; or

The visible light photosensitive unit is arranged around the infrared photosensitive unit.
The camera module according to claim 1, wherein the visible light photosensitive unit specifically comprises:

a first imaging unit, a second imaging unit, and a third imaging unit,

Wherein, the colors of the first imaging unit, the second imaging unit and the third imaging unit are different.
The camera module according to claim 3, further comprising:

The filter structure is arranged between the visible light photosensitive unit and the first light-transmitting structure, and the filter structure is used for filtering the light entering the image sensor.
The camera module according to claim 4, wherein the filter structure specifically comprises:

a light-shielding bracket, wherein a plurality of accommodating cavities are formed in the light-shielding bracket, and each of the accommodating cavities is provided with one of the visible light photosensitive units or one of the infrared photosensitive units;

A first filter is arranged on the side of the light-shielding bracket close to the first light-transmitting structure, and the first filter is used to filter infrared light, wherein the first filter is connected to the The position corresponding to the infrared photosensitive unit is hollowed out;

A second filter element is arranged between the first filter element and the image sensor, and the second filter element is arranged in a one-to-one correspondence with the accommodating cavity, so as to filter the incident light into the accommodating cavity of light.
The camera module according to claim 5, wherein,

The visible light photosensitive unit is arranged in the accommodating cavity, and the filter wavelength of the second filter member disposed on the accommodating cavity corresponds to the visible light photosensitive unit in the accommodating cavity;

The accommodating cavity is provided with the infrared photosensitive unit, and the filter wavelength of the second filter element disposed on the accommodating cavity corresponds to the infrared photosensitive unit in the accommodating cavity.
The camera module according to claim 1, further comprising:

The second light-transmitting structure is sleeved outside the first light-transmitting structure, and the second light-transmitting structure covers the laser emitter.
The camera module according to claim 1, wherein, in the light entering direction of the camera module, the first light-transmitting structure covers the image sensor, and the laser transmitter is arranged on the first transparent structure. outside the light structure.
The camera module according to claim 1, wherein,

The number of the laser emitters is multiple, and the multiple laser emitters are evenly distributed on the peripheral side of the image sensor; or

The number of the image sensors is multiple, the number of the laser transmitters is one, and the infrared photosensitive unit in each of the image sensors can receive the light.
An electronic device comprising:

ontology;

The camera module according to any one of claims 1 to 9, arranged on the body,

Wherein, the camera module is a front camera module and/or a rear camera module of the electronic device.