Camera module and electronic equipment

Abstract

The utility model provides a camera module and electronic equipment. The camera module comprises a prism and a lens, the lens is arranged on the first side of the prism, and the included angle between refracted light output by the lens and the first reflecting surface of the prism is smaller than or equal to a preset angle. According to the embodiment, by reducing the included angle between the refracted light and the first reflecting surface, the thickness of the prism can be reduced, and the effect of reducing the thickness of the camera module is achieved.

Description

Technical Field

[0001] The present disclosure relates to the field of camera technology, and in particular to a camera module and an electronic device. Background Art

[0002] The camera of existing electronic devices includes multiple cameras to achieve full focal length coverage such as ultra-wide angle, 1X and telephoto. Take the telephoto camera as an example, it captures images of relatively close scenes.

[0003] Existing telephoto cameras have a long focal length and are usually designed with a periscope solution to reduce the thickness of electronic devices. The periscope solution of the camera includes a prism. When the focal length of the telephoto camera is long, the prism needs to have a certain thickness, resulting in a bulge in the lens, which cannot meet the ideal module thickness requirement. Utility Model Content

[0004] The present disclosure provides a camera module and an electronic device to solve the above technical problems.

[0005] According to a first aspect of the present disclosure, a camera module is provided, comprising: a prism and a lens; the lens is arranged on a first side of the prism, and an angle between a refracted light output by the lens and a first reflective surface of the prism is less than or equal to a preset angle.

[0006] Optionally, the preset angle ranges from 20 to 30 degrees.

[0007] Optionally, the lens includes a plurality of lenses; the optical axes of the plurality of lenses are offset in the same offset direction from far to near according to the distance from the prism.

[0008] Optionally, the lens further includes a packaging body, and the plurality of lenses are packaged within the packaging body after being cut.

[0009] Optionally, the lens further includes a first optical anti-shake device, and the first optical anti-shake device is configured to maintain the postures of the multiple lenses.

[0010] Optionally, the camera module further includes a sensor; the sensor is disposed on the first side or the second side of the prism; and the light between the sensor and the lens is reflected at least once.

[0011] Optionally, a first side area of ​​a microlens of each pixel unit in the sensor is larger than a second side area, the first side area refers to an area facing the direction of incident light, and the second side area refers to an area facing away from the direction of incident light.

[0012] Optionally, the cross section of the microlens is asymmetrically arranged, and the first side area presents a convex curve segment convex toward a direction of reflected light in the cross section.

[0013] Optionally, the camera module further includes a second optical image stabilization device, and the sensor is fixed on the second optical image stabilization device and is configured to maintain the posture of the sensor.

[0014] According to a second aspect of the present disclosure, an electronic device is provided, comprising a camera module as described in any one of the first aspects.

[0015] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0016] The camera module provided in this embodiment includes a prism and a lens; the lens is arranged on the first side of the prism, and the angle between the refracted light output by the lens and the first reflective surface of the prism is less than or equal to a preset angle. Thus, in this embodiment, by reducing the angle between the refracted light and the first reflective surface, the thickness of the prism can be reduced, thereby achieving the effect of reducing the thickness of the camera module.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic structural diagram of a camera module according to an embodiment of the present disclosure.

[0019] Figure 2 The figure is a schematic structural diagram of a lens according to an embodiment of the present disclosure.

[0020] Figure 3 The figure is a schematic diagram of a light path of a plurality of lens optical axes offset according to an embodiment of the present disclosure.

[0021] Figure 4 The figure is a schematic diagram of a light path in which the optical axes of multiple lenses coincide with each other according to an embodiment of the present disclosure.

[0022] Figure 5 It is a schematic diagram of cutting after optical axis offset of a plurality of lenses according to an embodiment of the present disclosure.

[0023] Figure 6 This is a schematic diagram of a plurality of lenses cut and packaged after their optical axes are offset according to an embodiment of the present disclosure.

[0024] Figure 7 This is a structural diagram of a plurality of lenses additionally provided with a first optical image stabilization device according to an embodiment of the present disclosure.

[0025] Figure 8 The diagram is a schematic diagram of the position of a sensor when a prism reflects light once according to an embodiment of the present disclosure.

[0026] Fig. 9FIG. 4 is a schematic diagram of the position of a sensor when a prism reflects light multiple times according to an embodiment of the present disclosure.

[0027] Fig.10 The figure is a cross-sectional schematic diagram of a microlens according to an embodiment of the present disclosure.

[0028] Fig.11 FIG. 4 is a cross-sectional schematic diagram of another microlens according to an embodiment of the present disclosure.

[0029] Fig.12 A structural diagram of a sensor according to an embodiment of the present disclosure that is provided with a second optical image stabilization device.

[0030] Fig.13 The present invention is a block diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0032] To solve the above technical problems, the embodiments of the present disclosure provide a camera module and an electronic device. The camera module can be arranged on an electronic device, so as to facilitate users to use the electronic device to take photos or videos. The electronic device can be a smart phone, a tablet computer, a personal computer, and the like.

[0033] The inventive concept of the disclosed solution is to reduce the angle between the lens output light and the first reflective surface of the prism by adjusting the structure of the lens, ensuring that the angle is less than or equal to a preset angle, and the preset angle has a value range of 20 to 30 degrees. In this way, the disclosed solution can reduce the thickness of the prism by reducing the angle, thereby reducing the thickness of the camera module.

[0034] See also Figure 1 The camera module includes: a lens 1 and a prism 2. The lens 1 is arranged on a first side of the prism 2 ( Figure 1 The angle theta between the refracted light output by the lens 1 and the first reflecting surface 20 of the prism 2 is less than or equal to the preset angle. In one example, the preset angle ranges from 20 to 30 degrees, that is, the preset angle can be 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 or 30 degrees, which can be set according to the specific scene.

[0035] In one embodiment, the lens 1 includes a plurality of lenses. The optical axes of the plurality of lenses are offset in the same offset direction from far to near according to the distance from the prism. Figure 2 , the lens 1 may include three lenses, namely, lens 21, lens 22 and lens 23. The optical axis O1 of lens 21, the optical axis O2 of lens 22, and the optical axis O3 of lens 23. Assuming the offset direction D, the offset direction D can be understood as the projection of the optical path C of the light from the incident lens to the exit lens on the prism 2. After the multiple lenses are offset, the optical path is as follows Figure 3 shown.

[0036] See also Figure 3 After the optical axis of multiple lenses is offset, the light incident on the prism 2 presents the following characteristics: when parallel light is irradiated vertically to the lens, the light in the optical axis and the nearby area will be deflected to the position E of the incident surface of the prism through the refraction of each lens; and the farther away from the optical axis, the light is refracted by the lens toward the optical axis, and finally the irradiation area on the incident surface of the prism 2 is a non-circular area, and the position of the projection point A' and the incident point E of the incident position A of the light at the optical axis on the incident surface of the prism 2 are different. The projection point of the incident surface refers to the point where the light at the optical axis directly enters the prism from the incident position A of the lens (without deflection), such as point A'; and the incident point of the light refers to the point on the incident surface after being refracted by multiple lenses, such as point E.

[0037] When the optical axes of multiple lenses coincide, their optical paths are as follows: Figure 4 Before the optical axes of multiple lenses are offset, the light incident on the prism 2 presents the following characteristics: when parallel light is irradiated vertically to the lens, the light along the optical axis and the nearby area is vertically incident on the incident surface of the prism (the surface entering the prism from the air); and as the distance from the optical axis increases, the light is refracted toward the optical axis by multiple lenses, and finally the irradiated area on the incident surface of the prism is a circular area, the center point of which is above the optical axis of the lens.

[0038] Combination Figure 3 and Figure 4 As shown in the analysis, after the optical axes of multiple lenses are offset, the light in the optical axis and the area near the optical axis will be tilted, so that the light forms a certain angle with the incident surface of the prism. After the light enters the prism, it becomes refracted light, and the angle between the refracted light and the first reflection surface of the prism 2 is less than or equal to the preset angle. It is understandable that since the refracted light has been deflected after entering the prism, the thickness of the prism can be reduced at this time, thereby reducing the thickness of the camera module.

[0039] After the optical axes of multiple lenses are offset, multiple lenses will form Figure 2 The stacked structure shown in FIG. 1 increases the size of the lens in the width direction (i.e., the direction perpendicular to the optical axis). In one embodiment, multiple lenses can be cut to obtain the following: Figure 5Multiple lenses are shown as examples.

[0040] See also Figure 5 , when multiple lenses are aligned away from the side of the offset direction, the cutting position F can be along the lens 21 located on the side of the offset direction to vertically cut the lens 22 and the lens 23, which can reduce the width of the lens. In other words, when part of the lens is cut, the width of the lens is actually reduced. At this time, the size of the lens 21 can be increased and still be less than or equal to the size of the lens before the optical axis is offset. The cut lenses 22 and 23 can be increased synchronously to achieve the effect of increasing the amount of light transmission.

[0041] In one embodiment, the lens further comprises a packaging body. Figure 6 The packaging body 61 can package multiple cut lenses inside to form a lens.

[0042] In one embodiment, the lens further includes a first optical image stabilization device. Figure 7 The first optical anti-shake device 71 is rigidly connected to the multiple lenses (21, 22 and 23) and is configured to maintain the posture of the multiple lenses. During the shooting process, when the lens shakes, the first optical anti-shake device 71 can adjust its position according to the control instruction, thereby driving the multiple lenses to move synchronously to achieve the effect of eliminating the shake. The above control instruction is used to generate a compensation amount for compensating the lens shake.

[0043] In one embodiment, the camera module further includes a sensor. The sensor is disposed on the first side or the second side of the prism. Figure 1 , the sensor 3 is arranged on the first side of the prism 2 (ie Figure 1 Of course, the sensor 3 can be arranged on the second side of the prism 2 (ie Figure 1 upper side of the prism shown in the example).

[0044] In this embodiment, the light between the sensor 3 and the lens 1 is reflected at least once. Figure 8 , the light between the sensor 3 and the lens 1 is reflected once by the prism 2. Figure 1 , the light between the sensor 3 and the lens 1 is reflected twice by the prism 2. Fig. 9 , the light between the sensor 3 and the lens 1 is reflected multiple times by the prism 2. Those skilled in the art can select the number of light reflections according to the specific scene, thereby adjusting the length of the prism 2 to achieve the effect of optimizing the size of the camera module.

[0045] In one embodiment, the sensor 3 comprises a plurality of pixel units. Fig.11 The microlens 101 of each pixel unit is arranged in a hemispherical shape, thereby increasing the amount of light transmitted.

[0046] In another embodiment, the shape of the microlens of each pixel unit is improved, that is, the first side area of ​​the microlens is larger than the second side area, the first side area refers to the area facing the direction of the incident light, and the second side area refers to the area facing away from the direction of the incident light. Fig.11 The area of ​​the first side region 111 is larger than the area of ​​the second side region 112. By adjusting the area of ​​the side where the light is incident, the amount of light transmission can be increased. Based on the above concept, the cross-section of the microlens can be a triangle, a quarter ellipse, or other shapes in which the area of ​​the side where the light is incident is large and the area of ​​the side facing away from the light is small.

[0047] In this embodiment, continue to refer to Fig.11 The cross section of the microlens is asymmetrical, and the first side region presents a convex curve segment convex toward the direction of the reflected light in the cross section. In this way, the surface area of ​​the first side region is increased due to the curved surface setting, thereby achieving the effect of increasing the amount of light transmission.

[0048] In one embodiment, the camera module further includes a second optical image stabilization device. Fig.12 , the second optical anti-shake device 121 is rigidly connected to the sensor 3 and is configured to be in the posture of the sensor 3. During the shooting process, when the camera module shakes, the second optical anti-shake device 121 can adjust its position according to the control instruction, thereby driving the sensor 3 to move synchronously to achieve the effect of eliminating the shake. The above control instruction is used to generate a compensation amount for compensating the shake of the camera module.

[0049] Fig.13 1 is a block diagram of an electronic device according to an exemplary embodiment. For example, the electronic device 1300 may be a smart phone, a computer, a digital broadcast terminal, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0050] Reference Fig.13 The electronic device 1300 may include one or more of the following components: a processing component 1302 , a memory 1304 , a power component 1306 , a multimedia component 1308 , an audio component 1310 , an input / output (I / O) interface 1312 , a sensor component 1314 , a communication component 1316 , and an image acquisition component 1318 .

[0051] The processing component 1302 generally controls the overall operation of the electronic device 1300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1302 may include one or more processors 1320 to execute computer programs. In addition, the processing component 1302 may include one or more modules to facilitate interaction between the processing component 1302 and other components. For example, the processing component 1302 may include a multimedia module to facilitate interaction between the multimedia component 1308 and the processing component 1302. In one example, the processing component may include a processor for executing the above-mentioned antenna control method.

[0052] The memory 1304 is configured to store various types of data to support operations on the electronic device 1300. Examples of such data include computer programs for any application or method operating on the electronic device 1300, contact data, phone book data, messages, pictures, videos, etc. The memory 1304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0053] The power supply component 1306 provides power to various components of the electronic device 1300. The power supply component 1306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 1300. The power supply component 1306 may include a power supply chip, and the controller may communicate with the power supply chip to control the power supply chip to turn on or off the first switching device, so that the battery supplies power to the circuit board circuit or does not supply power.

[0054] The multimedia component 1308 includes a screen that provides an output interface between the electronic device 1300 and the target object.

[0055] In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input information from a target object. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.

[0056] The audio component 1310 is configured to output and / or input audio file information. For example, the audio component 1310 includes a microphone (MIC), and when the electronic device 1300 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive external audio file information. The received audio file information can be further stored in the memory 1304 or sent via the communication component 1316. In some embodiments, the audio component 1310 also includes a speaker for outputting audio file information.

[0057] The I / O interface 1312 provides an interface between the processing component 1302 and a peripheral interface module, which may be a keyboard, a click wheel, a button, etc.

[0058] The sensor component 1314 includes one or more sensors for providing various aspects of status assessment for the electronic device 1300. For example, the sensor component 1314 can detect the open / closed state of the electronic device 1300, the relative positioning of components, such as the display screen and keypad of the electronic device 1300, and the sensor component 1314 can also detect the position change of the electronic device 1300 or a component, the presence or absence of contact between the target object and the electronic device 1300, the orientation or acceleration / deceleration of the electronic device 1300, and the temperature change of the electronic device 1300. In this example, the sensor component 1314 can include a magnetic sensor, a gyroscope, and a magnetic field sensor, and can also include an inertial sensor, an image sensor, etc., wherein the magnetic field sensor includes at least one of the following: a Hall sensor, a thin film magnetoresistive sensor, and a magnetic liquid acceleration sensor.

[0059] The communication component 1316 is configured to facilitate wired or wireless communication between the electronic device 1300 and other devices. The electronic device 1300 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, 5G, or a combination thereof. In an exemplary embodiment, the communication component 1316 receives broadcast information or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1316 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0060] The image acquisition component 1318 is configured to capture images or record videos for the electronic device 1300. The image acquisition component 1318 includes Figures 1 to 12 The camera module shown.

[0061] In an exemplary embodiment, the electronic device 1300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0062] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0063] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A camera module, characterized in that: The camera module includes: a prism and a lens; the lens is arranged on a first side of the prism, and an angle between the refracted light output by the lens and a first reflective surface of the prism is less than or equal to a preset angle.

2. The camera module according to claim 1, characterized in that: The preset angle ranges from 20 to 30 degrees.

3. The camera module according to claim 1, characterized in that: The lens comprises a plurality of lenses; the optical axes of the plurality of lenses are shifted in the same shifting direction from far to near according to the distance from the prism.

4. The camera module according to claim 3, characterized in that: The lens also includes a packaging body, and the multiple lenses are packaged in the packaging body after being cut.

5. The camera module according to claim 3 or 4, characterized in that: The lens further includes a first optical anti-shake device, which is configured to maintain the postures of the plurality of lenses.

6. The camera module according to claim 1, characterized in that: The camera module also includes a sensor; the sensor is arranged on the first side or the second side of the prism; and the light between the sensor and the lens is reflected at least once.

7. The camera module according to claim 6, characterized in that: The first side area of ​​the microlens of each pixel unit in the sensor is larger than the second side area, the first side area refers to the area facing the direction of the incident light, and the second side area refers to the area facing away from the direction of the incident light.

8. The camera module according to claim 7, characterized in that: The cross section of the microlens is asymmetrically arranged, and the first side surface area presents a convex curve segment convex toward the direction of the reflected light in the cross section.

9. The camera module according to any one of claims 6 to 8, characterized in that: The camera module also includes a second optical anti-shake device, and the sensor is fixed on the second optical anti-shake device and is configured to maintain the posture of the sensor.

10. An electronic device, characterized in that: The electronic device comprises the camera module as claimed in any one of claims 1 to 9.

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