CN110913096A - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
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- CN110913096A CN110913096A CN201910367026.2A CN201910367026A CN110913096A CN 110913096 A CN110913096 A CN 110913096A CN 201910367026 A CN201910367026 A CN 201910367026A CN 110913096 A CN110913096 A CN 110913096A
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- reflecting surface
- camera module
- driving device
- optical axis
- optical lens
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- 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
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
Abstract
The application provides a module and electronic equipment make a video recording, wherein the module of making a video recording includes along the optical lens that the primary optical axis set gradually, focus subassembly and image processing subassembly. The optical lens is used for receiving the light beam emitted from the shot object. The focusing assembly comprises a first driving device and N pairs of first reflecting surface groups, wherein the N pairs of first reflecting surface groups are used for receiving light beams from the optical lens and folding an optical path; the first driving device is used for driving at least one first reflecting surface group to move along a first direction so as to focus the folded light beam, each first reflecting surface group comprises at least one first reflecting surface, and N is a positive integer. The image processing assembly is used for processing an image formed by the focused light beams. Through the folding of N to first reflection surface group to the formation of image light path, help reducing the space length that the formation of image light path was occupied to can effectively shorten the size of the module of making a video recording, in the in-process of focusing moreover, optical lens is fixed unmovable.
Description
Technical Field
The application relates to the technical field of electronic devices, in particular to a camera module and electronic equipment.
Background
With the development of science and technology, more and more functions, such as a photographing function, are integrated on electronic equipment. With the widespread use of electronic devices, users have increasingly high requirements for the photographing function, for example, users need higher quality images, higher optical zoom magnification, and the like. At present, in order to realize a higher optical zoom factor, the structure of an image pickup module provided in an electronic apparatus is as shown in fig. 1 or fig. 2. For the structure shown in fig. 1, a vertical structure is adopted, the whole optical lens assembly is driven by a motor during focusing, the optical path for imaging is short, and the camera module cannot realize a large optical zoom factor. For the structure shown in fig. 2, the motor drives the imaging lens assembly to focus, a longer imaging optical path is required, and the size of the camera module is larger, and a larger optical zoom factor cannot be realized due to limited space of the electronic device.
Disclosure of Invention
The application provides a module and electronic equipment make a video recording for it has great optics zoom multiple to realize the module of making a video recording.
In a first aspect, the present application provides a camera module, which includes an optical lens, a focusing assembly and an image processing assembly sequentially disposed along a main optical axis. And the optical lens is used for receiving the light beam emitted from the shot object. The focusing assembly comprises a first driving device and N pairs of first reflecting surface groups, wherein the N pairs of first reflecting surface groups are used for receiving light beams from the optical lens and folding the light path, and the first driving device is used for driving at least one first reflecting surface group to move along a first direction so as to focus the folded light beams. And the image processing assembly is used for processing an image formed by the focused light beams, wherein each first reflecting surface group comprises at least one first reflecting surface, and N is a positive integer.
Based on the scheme, the optical path from the optical lens can be folded through the N pairs of first reflecting surface groups. Compared with the prior art, under the condition that optical lens's physical focal length is the same, this application helps reducing the shared space length of formation of image light path through the folding to the formation of image light path to can effectively shorten the size of the module of making a video recording. That is to say, can realize through this scheme that the module of making a video recording can adopt the optical lens of great physical focal length in limited space to can realize great optics and zoom the multiple. Further, the first driving device drives at least one first reflecting surface group to move along the first direction to realize focusing, so that a clear image is formed, namely, the optical lens is fixed and does not move in the focusing process.
In a possible implementation, the first reflecting surface group is a right-angle surface group or a reflecting mirror group of a right-angle prism. It is also understood that the first reflective surface may be a right angle surface of a right angle prism or may be a mirror.
In a possible implementation manner, the upper and lower first reflection surfaces in the pair of first reflection surface groups are oppositely arranged, and an included angle between each reflection surface in the first reflection surface group and the main optical axis is greater than 0 degree and smaller than 90 degrees. The upper first reflecting surface and the lower first reflecting surface are oppositely arranged, so that when the upper first reflecting surface reflects the light beam to the lower first reflecting surface, the lower first reflecting surface can directly reflect the light beam. The included angle between each reflecting surface and the main optical axis is larger than 0 degree and smaller than 90 degrees, so that light beams from the optical lens can be incident to the first reflecting surface.
Furthermore, the upper and lower first reflecting surfaces in the pair of first reflecting surface groups can be arranged oppositely and in parallel. Through parallel arrangement, the camera module can be conveniently processed and manufactured.
In a possible implementation manner, an included angle between any two adjacent first reflecting surfaces in one first reflecting surface group is greater than 0 degree and less than 180 degrees. In this way, folding of the optical path, i.e. forming a folded optical path, may be achieved.
In a possible implementation manner, the first driving device is used for driving the at least one first reflecting surface group to move along a direction perpendicular to the main optical axis. In a specific implementation, the first driving device may drive one first reflection surface group to move along a direction perpendicular to the main optical axis, may also drive two first reflection surface groups to move along a direction perpendicular to the main optical axis, or may also drive all the first reflection surface groups to move along a direction perpendicular to the main optical axis.
In order to make the camera module can shoot stable images, the light beam in the camera module can be subjected to shake compensation. The present application provides two implementations as follows.
In a first implementation manner, the first driving device is further configured to drive the at least one first reflecting surface group to move along the second direction, so as to perform shake compensation on the light beam from the optical lens. Thus, optical anti-shake in a specific direction can be realized, and the anti-shake angle can be enlarged.
In a second implementation manner, the camera module may further include a shake compensation component disposed in front of the optical lens along the main optical axis. The shake compensation assembly comprises a second driving device and a second reflecting surface, the second reflecting surface group receives light beams emitted by a shot object, the second driving device is used for driving the second reflecting surface to rotate so as to carry out shake compensation on the light beams emitted by the shot object, and then the second reflecting surface group emits the light beams after shake compensation into the focusing assembly, so that the shake prevention effect is achieved.
In a possible embodiment, the second drive device can rotate the second reflection surface in a plane parallel to the main optical axis.
In one possible implementation, the angle between the second reflecting surface and the main optical axis may be 45 degrees.
In one possible implementation, the second reflecting surface may be a bevel of a right angle prism or a mirror.
In a second aspect, the present application provides an electronic device including the above camera module.
Drawings
Fig. 1 is a schematic structural diagram of a camera in the prior art;
fig. 2 is a schematic diagram of a camera in the prior art;
fig. 3a is a schematic structural diagram of an electronic device provided in the present application;
fig. 3b is a schematic structural diagram of a camera module provided in the present application;
fig. 4a is a schematic structural diagram of an optical lens provided in the present application;
fig. 4b is a schematic structural diagram of another optical lens provided in the present application;
FIG. 5a is a schematic structural diagram of a focusing assembly provided herein;
FIG. 5b is a schematic structural diagram of another focusing assembly provided herein;
FIG. 6a is a schematic structural diagram of a jitter compensation module according to the present application;
FIG. 6b is a schematic structural diagram of a jitter compensation module according to the present application;
fig. 7 is a schematic structural diagram of a camera module according to the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.
In the following, for ease of understanding, the basic concepts related to the present application are described.
Firstly, focal length: the magnitude of the focal length indicates the magnitude of the refractive power, and the shorter the focal length, the greater the refractive power. The focal length of an optical lens determines the size of an image formed on an imaging plane by a subject photographed by the optical lens. Assuming that the same subject is photographed at the same distance, the longer the focal length of the optical lens, the larger the magnification of an image formed by the subject on a photosensitive element (CCD).
Second, equivalent focal length: the visual angles of images on the photosensitive elements with different sizes are converted into optical lens focal lengths corresponding to the same imaging visual angles on the 135 camera module, and the converted focal lengths are equivalent 135 focal lengths, namely equivalent focal lengths. It can also be understood that the 135 camera module is used as a standard to convert the focal length of the camera module of non-135 standard to the focal length of the 135 camera module. Optionally, the equivalent focal length is a focal length coefficient (or a focal length multiple) of a physical focal length of the optical lens, where the focal length coefficient is a ratio of a diagonal length of a sensing element of the non-135-standard image capture module to a focal length of a photosensitive element of the 135-standard image capture module. For example, if the physical focal length of the optical lens is 31mm, the diagonal length of the sensing element of the camera module of the non-135 standard is 4.8mm, and the diagonal length of the photosensitive element of the camera module of the 135 standard is 43.27mm, the equivalent focal length is 31 × 43.27/4.8 ≈ 280 mm.
Thirdly, optical zooming: mainly the contrast ratio and the switching of different focal lengths in the camera module. The optical zoom power can be expressed as an optical zoom factor, and the larger the optical zoom factor is, the farther a scene can be shot. The size of the optical zoom multiple is related to the physical focal length of the optical lens. The equivalent focal length of the camera module is usually 28mm, which is the 1X optical zoom factor. For example, if the diagonal length of the photosensitive element of the 135-standard image pickup module is 43.27mm, and the diagonal length of the sensing element of the image pickup module other than the 135-standard image pickup module is 4.8mm, and the physical focal length of the optical lens is 31mm, the equivalent focal length is 31 × 43.27/4.8 ≈ 280 mm; the optical zoom factor of the camera module is 280/28X 10X. For another example, if the diagonal length of the sensing element of the camera module of the specification other than 135 is 4.8mm, and the physical focal length of the optical lens is 20mm, the equivalent focal length is 20 × 43.27/4.8 ≈ 180mm, and the optical zoom factor of the camera module is 180/28 ≈ 6.4X.
Fourthly, optical anti-shake: the compensation of the light beam (or light ray) shake means that the imaging light beam deviation caused by shake is counteracted through the movement of an optical lens or the movement of other elements in the camera module, so that the light path is kept stable, and the image blur generated by the shake of the camera module is effectively overcome.
Fifthly, focusing: focusing is also referred to as focusing, or focusing. The process of imaging the shot object clearly is achieved by changing the image distance through the focusing assembly in the camera module. The focusing comprises automatic focusing and manual focusing, wherein the automatic focusing (auto focusing) is a mode that reflected light is received by a photosensitive element on the camera module by utilizing the principle of object light reflection, and a driving device is driven to focus through computer processing. For example, the camera module emits an infrared ray (or other rays), determines the distance of the object according to the reflection of the object, and then adjusts the image distance according to the measured result to realize automatic focusing.
In the embodiments of the present invention, the following "first", "second", and the like are used for distinguishing similar objects, and are not necessarily used for describing a specific order or a sequential order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such as a list of modules or elements. The system, product, or device is not necessarily limited to those modules or elements explicitly listed, but may include other modules or elements not explicitly listed or inherent to such system, module, or element.
The camera module provided by the embodiment of the application can be applied to any electronic equipment, so that the electronic equipment has a camera function. Including, but not limited to, a personal computer, server computer, hand-held or laptop device, mobile device (such as cell phone, mobile phone, tablet, personal digital assistant, media player, etc.), consumer electronic device, minicomputer, mainframe computer, film camera, digital camera, video camera, surveillance device, telescope or periscope, and the like. For convenience of explanation, a mobile phone is taken as an example, and as shown in fig. 3a, a schematic structural diagram of an electronic device including a camera module is provided. This electronic equipment can be used for shooing or shooing the object including the module of making a video recording, the module of making a video recording. That is, the image pickup module can image a light beam from a subject.
The embodiment of the application mainly aims at improving the structure of the camera module, and as an example, fig. 3b exemplarily shows a structural schematic diagram of the camera module provided by the application. The camera module comprises an optical lens 10, a focusing assembly 20 and an image processing assembly 30 which are sequentially arranged along a main optical axis. And an optical lens 10 for receiving a light beam emitted from a subject. The focusing assembly 20 comprises a first driving device 201 and N pairs of first reflecting surface groups 202, wherein the N pairs of first reflecting surface groups are used for receiving light beams from the optical lens and folding an optical path; the first driving device is used for driving at least one first reflecting surface group to move along a first direction so as to focus the folded light beam, the first reflecting surface group comprises at least one first reflecting surface, and N is a positive integer. And an image processing component 30 for processing the image formed by the focused light beam.
Based on the scheme, the optical path from the optical lens can be folded through the N pairs of first reflecting surface groups. Compared with the prior art, under the condition that optical lens's physical focal length is the same, this application helps reducing the shared space length of formation of image light path through the folding to the formation of image light path to can effectively shorten the size of the module of making a video recording. That is to say, can realize through this scheme that the module of making a video recording can adopt the optical lens of great physical focal length in limited space to can realize great optics and zoom the multiple. Further, the first driving device drives at least one first reflecting surface group to move along the first direction to realize focusing, so that a clear image is formed, namely, the optical lens is fixed and does not move in the focusing process.
Through the camera module shown in fig. 3b, an optical lens with a physical focal length of not less than 20mm can be adopted, accordingly, the equivalent focal length is not less than 180mm, and the optical zoom multiple is not less than 6 times.
The following describes the respective structures shown in fig. 3b to give an exemplary embodiment.
An optical lens 10
As an example, fig. 4a shows a schematic structural diagram of an optical lens. As shown in fig. 4a, the optical lens 10 includes a first lens 101 and a second lens 102 in order along a main optical axis. Wherein the refractive powers of the first lens 101 and the second lens 102 are both positive numbers. That is, the first lens 101 and the second lens 102 are both convex lenses. The convex lens may be any one of a biconvex lens, a plano-convex lens and a convex-concave lens, which is not limited in the present application.
The surface of the first lens, which receives an incident beam of light toward the subject, may be a convex surface, a biconvex lens, a plano-convex lens, or a convex-concave lens in which the central portion is thicker than the edge portions. The surface of the second lens, which is directed to the incident beam of the object, may also be a convex surface, and may be a biconvex lens, a plano-convex lens, or a convex-concave lens with a central portion thinner than an edge portion, and fig. 4a illustrates an example in which the first lens 101 is a plano-convex lens and the second lens 102 is a convex-concave lens.
As an example, fig. 4b shows a schematic structural diagram of another optical lens. As shown in fig. 4b, the optical lens 10 includes a first lens 101, a third lens 103, and a second lens 102 in this order along the main optical axis. Wherein the refractive powers of the first lens 101, the third lens 103, and the second lens 102 are all positive numbers. That is, the first lens 101, the third lens 103, and the second lens 102 are all convex lenses. The convex lens may be any one of a biconvex lens, a plano-convex lens and a convex-concave lens, and fig. 4b illustrates that the first lens 101 is a plano-convex lens, the second lens 102 is a convex-concave lens, and the third lens 103 is a biconvex lens, which is not limited in this application.
Focusing assembly 20
In a possible implementation manner, the first reflecting surface group in the focusing assembly may be a reflecting mirror (mirror) group, and may also be a right-angled surface of a right-angled prism.
As an example, fig. 5a shows a schematic structural diagram of a focusing assembly. As shown in fig. 5a, the focusing assembly 20 includes a first driving device 201 and 2 pairs of first reflecting surface sets 202. The first reflecting surface group 202 is a reflecting mirror group. The first reflection surface group 202 includes 2 first reflection surfaces, and based on the focusing assembly shown in fig. 5a, two first reflection surfaces adjacent to each other on the left and right are included for one first reflection surface group 202, one first reflection surface group 202 shown in fig. 5a includes a first reflection surface a and a first reflection surface B, and the other first reflection surface group 202 includes a first reflection surface a and a first reflection surface B. The included angle between any two adjacent first reflecting surfaces in one first reflecting surface group is larger than 0 degree and smaller than 180 degrees. So, can realize the folding to the light path, form folding light path promptly, and then the size of the module of making a video recording of reducible.
In a possible implementation manner, the upper and lower first reflection surfaces in the pair of first reflection surface groups are oppositely arranged, and an included angle θ between each reflection surface in the first reflection surface group and the main optical axis is greater than 0 degree and smaller than 90 degrees. One pair of first reflective surfaces as shown in fig. 5a includes a first reflective surface a and a first reflective surface a, and the other pair of first reflective surfaces includes a first reflective surface B and a first reflective surface B. The upper first reflecting surface and the lower first reflecting surface are oppositely arranged, so that when the upper first reflecting surface reflects the light beam to the lower first reflecting surface, the lower first reflecting surface can directly reflect the light beam. And the included angle between the first reflecting surface and the main optical axis is more than 0 degree and less than 90 degrees, so that the light beam from the optical lens can be incident on the first reflecting surface.
Furthermore, the upper and lower first reflecting surfaces in the pair of first reflecting surface groups can be arranged oppositely and in parallel. Through parallel arrangement, the camera module can be conveniently processed and manufactured. It can be understood that if the upper and lower first reflecting surfaces in the pair of first reflecting surface groups are opposite but not parallel, when the camera module is horizontally placed to shoot images, images formed in the image processing assembly may incline to a certain extent, so that when the camera module is horizontally placed to shoot images, the position of the camera module needs to be controlled to ensure that the images formed by the image processing assembly are normal and do not incline.
It should be noted that the first mirror group includes at least one first mirror, for example, two first mirrors adjacent to each other on the left and right as shown in fig. 5a may be similar to a "V" shape, or may also be three first mirrors similar to a "V \ shape, or may also be four first mirrors similar to a" W "shape, and the like, and the other shapes that can fold the optical path and can image on the image processing assembly may be implemented, which is not limited in this application.
As an example, fig. 5b shows a schematic structural diagram of another focusing assembly. As shown in fig. 5b, the focusing assembly 20 includes a first driving device 201 and 2 pairs of first reflecting surface sets 202. Wherein, first plane of reflection group is two right angle faces of right angle prism. As shown in FIG. 5b, one first reflective surface group 202 includes two right-angled surfaces of right-angled prism 1, and the other first reflective surface group 202 includes two right-angled surfaces of right-angled prism 2. A pair of first reflecting surfaces comprises one of the right-angled surfaces of corner 1 and one of the right-angled surfaces of right-angled prism 2, which are oppositely disposed. That is, one pair of first reflection surfaces includes the right-angled surface of the left side of the right-angle prism 1 and the right-angled surface of the left-angle prism 2, and the other pair of first reflection surfaces includes the right-angled surface of the right side of the right-angle prism 1 and the right-angled surface of the right-angle prism 2. The upper first reflecting surface and the lower first reflecting surface (the right-angle surfaces of the right-angle prism) are oppositely arranged, so that when the upper first reflecting surface reflects the light beams to the lower first reflecting surface, the lower first reflecting surface can directly reflect the light beams. So, can realize the folding to the light path, form folding light path, and then help reducing the size of the module of making a video recording. Furthermore, the upper right-angle surface and the lower right-angle surface in the pair of first reflecting surface groups can be arranged oppositely and in parallel. Through parallel arrangement, the camera module can be conveniently processed and manufactured.
In a possible implementation manner, each right-angle surface of the right-angle prism 1 and the right-angle surface of the right-angle prism 2 respectively forms an included angle θ with the main optical axis, which is greater than 0 degree and less than 90 degrees, so that the light beam from the optical lens can be incident on the first reflecting surface.
The first direction may be a direction perpendicular to the main optical axis (as shown in fig. 5 a), or may be a direction forming an angle α with the main optical axis (as shown in fig. 5 a), and the angle α is greater than 0 degrees and less than 90 degrees.
In this application, the process of the first driving device driving the first reflecting surface group to move to realize focusing may be: the first driving device is used for driving at least one first reflecting surface group to move along a direction perpendicular to the main optical axis or a direction forming a certain angle with the main optical axis so as to realize focusing. Achieving focus by moving in a direction perpendicular to the main optical axis helps to shorten the distance the first set of reflective surfaces moves.
In conjunction with fig. 5a, the first driving device can be used to drive the upper first reflecting surface set 202 to move upward (or downward) along a direction perpendicular to the main optical axis. Or the first driving device may be used to drive the lower first reflecting surface group 202 to move upward (or downward) along a direction perpendicular to the main optical axis. Or the first driving device may be configured to drive the upper first reflecting surface group 202 and the lower first reflecting surface group 202 to move together along a direction perpendicular to the main optical axis; for example, the first driving device drives the upper first reflection surface group 202 to move downward along a direction perpendicular to the main optical axis, and drives the lower first reflection surface group 202 to move upward along a direction perpendicular to the main optical axis; for another example, the first driving device drives the upper first reflection surface group 202 to move upward along a direction perpendicular to the main optical axis, and drives the lower first reflection surface group 202 to move downward along a direction perpendicular to the main optical axis.
In conjunction with fig. 5b, the first driving device can be used to drive the upper right-angle prism 1 to move upward (or downward) in the direction perpendicular to the main optical axis. Or the first drive means may be used to move the lower right-angle prism 2 upwards (or downwards) in a direction perpendicular to the main optical axis. Or the first driving device may be configured to drive the upper right-angle prism 1 and the lower right-angle prism 2 to move together along a direction perpendicular to the main optical axis, for example, the first driving device drives the upper right-angle prism 1 to move upward along the direction perpendicular to the main optical axis, and drives the lower right-angle prism 2 to move upward along the direction perpendicular to the main optical axis; for another example, the first driving device drives the upper right-angle prism 1 to move downward along a direction perpendicular to the main optical axis, and drives the lower right-angle prism 2 to move downward along a direction perpendicular to the main optical axis; for another example, the first driving device drives the upper right-angle prism 1 to move upward along a direction perpendicular to the main optical axis, and drives the lower right-angle prism 2 to move downward along a direction perpendicular to the main optical axis.
Based on the focusing assembly 20, optical focusing for different object distances can be realized, so that the camera module can shoot clear images.
Third, the image processing assembly 30
The image processing assembly 30 may include a sensing element and related circuitry, and may be specifically a photosensitive chip, to implement an imaging function. Optionally, the light beam from the object reaches the light sensing chip after being converged and diverged under the action of the optical lens 10, and the optical signal is converted into an electrical signal under the action of the light sensing chip. Furthermore, the obtained original image can be subjected to denoising, enhancement, segmentation blurring and other processing, so that the user experience is enriched.
In order to form a stable image of a photographed object, the present application provides the following two implementations of compensating for the shake of a light beam. Two implementations of optical anti-shaking are also conceivable.
Implementation mode one
The first driving device 201 is further configured to drive at least one first reflecting surface group to move along a second direction (as shown in fig. 5 a), so as to implement shake compensation on the light beam from the optical lens. Thus, optical anti-shake in a specific direction can be realized, and the anti-shake angle can be enlarged.
Here, the second direction may be a direction parallel to the main optical axis or a direction having an angle with the main optical axis, the angle β is greater than 0 degrees and less than 90 degrees.
Implementation mode two
The camera module further includes a shake compensation assembly 40 disposed in front of the optical lens 10 along the main optical axis. It is also understood that the shake compensation unit 40 is disposed between the subject and the optical lens 10 along the main optical axis (as shown in fig. 7). Fig. 6a is a schematic structural diagram of a jitter compensation module according to the present application. The jitter compensating assembly 40 comprises a second driving means 401 and a second reflecting surface 402, wherein the second reflecting surface may be a mirror, and the mirror is a front mirror. The second driving device is used for driving the second reflecting surface to rotate so as to perform shake compensation on light beams emitted by the shot object. Alternatively, the mirror of the second reflecting surface may be the same as or different from the mirror of the first reflecting surface. Alternatively, the second driving device may be a driving device such as an optical anti-shake motor or a servo motor.
Of course, the camera module may further include a shake detector and a processor, wherein the shake detector may be a gyroscope. Specifically, the jitter detector detects the tiny movement and transmits a signal to the processor, the processor calculates the required compensation amount, and then controls the second driving device to drive the second reflecting surface to adjust the position and the angle according to the calculated compensation amount.
The second driving device may drive the second reflection surface to rotate in a plane parallel to the main optical axis, and specifically, the second driving device may drive the second reflection surface to tilt at a small angle, so as to perform shake compensation on the plane parallel to the main optical axis.
It should be noted that the first driving device and the second driving device may be integrated together, or may be two separate independent driving devices.
As an example, fig. 6b shows a schematic structure diagram of another jitter compensation assembly. As shown in fig. 6b, the shake compensation assembly 40 includes a second driving device 401 and a second reflecting surface 402, wherein the second reflecting surface may be an inclined surface of a right-angle prism. The second driving device is used for driving the right-angle prism to rotate so as to perform shake compensation on light beams emitted by the shot object. Alternatively, the right-angle prism of the second reflection surface may be the same as or different from the right-angle prism of the first reflection surface.
In a possible implementation, the angle ψ between the second reflective surface and the main optical axis may be 45 degrees. When the second reflecting surface is a reflector, the included angle between the reflector and the main optical axis is 45 degrees. When the second reflecting surface is an inclined surface of the right-angle prism, an included angle between the inclined surface of the right-angle prism and the main optical axis is 45 degrees.
In this application, can carry out optics anti-shake through implementation mode one, also can carry out optics anti-shake through implementation mode two, or also can carry out optics anti-shake through the mode that implementation mode one and implementation mode two combine.
As an example, fig. 7 shows a schematic structural diagram of a camera module. As shown in fig. 7, the camera module includes a shake compensation assembly 40, an optical lens 10, a focusing assembly 20, and an image processing assembly 30. The shake compensation assembly 40 can perform optical anti-shake through the first implementation manner, or perform optical anti-shake through fig. 6a or 6b shown in the second implementation manner, the optical lens 10 can be the optical lens shown in fig. 4a or 4b, the focusing assembly 20 can be the focusing lens shown in fig. 5a and 5b, and the image processing assembly 30 can refer to the above description, and is not described herein again.
In one possible implementation, the camera module may further include an Infrared (IR) filter that may be used to block the effects of IR radiation that may damage or adversely affect the image processing assembly 30 and may be configured to have no effect on the focal length of the optical lens 10. Alternatively, the IR filter may be composed of, for example, a glass material.
Further, based on the above-mentioned module of making a video recording, the height that can realize the module of making a video recording is not more than 9mm, and horizontal maximum dimension is not more than 40mm, can be convenient integrated to electronic equipment in.
Based on the structure and functional principle of the camera module described above, an embodiment of the present application may further provide an electronic device, where the electronic device may include the camera module described above, and may also include other devices, such as a processor, a memory, a wireless communication device, a sensor, a touch screen, and a display screen. That is to say, the camera module provided by the embodiment of the present application can be adopted in electronic equipment with camera shooting or photo taking functions.
While the invention has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely illustrative of the concepts defined by the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.
Claims (11)
1. A camera module is characterized by comprising an optical lens, a focusing assembly and an image processing assembly which are sequentially arranged along a main optical axis;
the optical lens is used for receiving light beams emitted by a shot object;
the focusing assembly comprises a first driving device and N pairs of first reflecting surface groups, each first reflecting surface group comprises at least one first reflecting surface, and the N pairs of first reflecting surface groups are used for receiving light beams from the optical lens and folding the light path; the first driving device is used for driving at least one first reflecting surface group to move along a first direction so as to focus the folded light beam, and N is a positive integer;
and the image processing component is used for processing the image formed by the focused light beam.
2. The camera module of claim 1, wherein the first set of reflective surfaces is a right-angled surface of a right-angled prism or a set of mirrors.
3. The camera module according to claim 1 or 2, wherein the upper and lower first reflecting surfaces of the pair of first reflecting surface groups are disposed opposite to each other;
and the included angle between each reflecting surface in the first reflecting surface group and the main optical axis is more than 0 degree and less than 90 degrees.
4. The camera module of claim 3, wherein an angle between any two adjacent first reflective surfaces in a first reflective surface group is greater than 0 degrees and less than 180 degrees.
5. The camera module according to any one of claims 1 to 4, wherein the first driving device is configured to drive at least one of the first reflecting surface sets to move along a first direction, and comprises:
the first driving device is used for driving the at least one first reflecting surface group to move along the direction vertical to the main optical axis.
6. The camera module according to any one of claims 1 to 5, wherein the first driving device is further configured to drive the at least one first reflecting surface group to move along the second direction, so as to compensate for the shake of the light beam from the optical lens.
7. The camera module of any one of claims 1-6, further comprising a shake compensation component disposed along the primary optical axis before the optical lens;
the shake compensation component comprises a second driving device and a second reflecting surface, the second reflecting surface group is used for receiving light beams emitted by the shot object, and the second driving device is used for driving the second reflecting surface to rotate so that the second reflecting surface can shake and compensate the light beams emitted by the shot object;
the second reflecting surface group is also used for injecting the light beam after the jitter compensation into the focusing assembly.
8. The camera module of claim 7, wherein the second driving device is configured to drive the second reflecting surface to rotate, and comprises:
the second driving device is used for driving the second reflecting surface to rotate in a plane parallel to the main optical axis.
9. A camera module according to claim 7 or 8, wherein the angle between the second reflective surface and the primary optical axis is 45 degrees.
10. The camera module of any of claims 7-9, wherein the second reflective surface is an inclined surface of a right angle prism or a mirror.
11. An electronic apparatus comprising the camera module according to any one of claims 1 to 10.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367026.2A CN110913096A (en) | 2019-05-05 | 2019-05-05 | Camera module and electronic equipment |
| CN202010214891.6A CN111901503B (en) | 2019-05-05 | 2020-03-24 | Camera module, terminal equipment, imaging method and imaging device |
| JP2021565767A JP7313478B2 (en) | 2019-05-05 | 2020-04-08 | Compact camera module, terminal device, imaging method, and imaging apparatus |
| BR112021022190A BR112021022190A2 (en) | 2019-05-05 | 2020-04-08 | Compact camera module, terminal device, imaging method, and imaging apparatus |
| PCT/CN2020/083844 WO2020224371A1 (en) | 2019-05-05 | 2020-04-08 | Camera module, terminal device, imaging method and imaging apparatus |
| KR1020217039586A KR102606609B1 (en) | 2019-05-05 | 2020-04-08 | Camera module, terminal device, imaging method and imaging device |
| EP20802338.2A EP3955562A4 (en) | 2019-05-05 | 2020-04-08 | Camera module, terminal device, imaging method and imaging apparatus |
| US17/517,208 US11796893B2 (en) | 2019-05-05 | 2021-11-02 | Compact camera module and terminal device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367026.2A CN110913096A (en) | 2019-05-05 | 2019-05-05 | Camera module and electronic equipment |
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| CN110913096A true CN110913096A (en) | 2020-03-24 |
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| CN202010214891.6A Active CN111901503B (en) | 2019-05-05 | 2020-03-24 | Camera module, terminal equipment, imaging method and imaging device |
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| CN202010214891.6A Active CN111901503B (en) | 2019-05-05 | 2020-03-24 | Camera module, terminal equipment, imaging method and imaging device |
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| CN111901503A (en) | 2020-11-06 |
| CN111901503B (en) | 2022-11-08 |
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