CN113965669A - Camera module and electronic equipment - Google Patents

Abstract

Translated fromChinese

本申请提供一种摄像模组和电子设备。所述摄像模组包括沿着主光轴方向依次排列的光学镜头、光线调整组件及图像传感器；所述光线调整组件包括第一折光件、第二折光件和挡光件，所述第一折光件和所述第二折光件间隔设置，所述第一折光件位于所述光学镜头和所述图像传感器之间，从所述光学镜头传递的光线通过所述第一折光件和所述第二折光件传递至所述图像传感器，所述挡光件位于所述第一折光件和所述第二折光件之间，所述挡光件用于遮档从所述光学镜头传递到所述第一折光件和所述第二折光件之间的杂散光。本申请的摄像模组用以提高摄像模组的成像质量。

The present application provides a camera module and an electronic device. The camera module includes an optical lens, a light adjustment component and an image sensor arranged in sequence along the direction of the main optical axis; the light adjustment component includes a first refracting member, a second refracting member and a light blocking member, the first refracting member The first refracting member is located between the optical lens and the image sensor, and the light transmitted from the optical lens passes through the first refracting member and the second refracting member. A refractive element is transmitted to the image sensor, the light blocking element is located between the first refractive element and the second refractive element, and the light blocking element is used to block the transmission from the optical lens to the first refractive element. Stray light between a refractive element and the second refractive element. The camera module of the present application is used to improve the imaging quality of the camera module.

Description

Camera module and electronic equipment

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. Users have higher and higher requirements for the photographing function, such as higher quality images, higher optical zoom magnification, etc. The prior art is through setting up the light path of structural component in order to increase the module of making a video recording in the module of making a video recording to improve the magnification of zooming of the module of making a video recording, but set up structural component and can make the module structure of making a video recording more complicated, produce more stray light thereupon, influence the imaging quality of the module of making a video recording.

Disclosure of Invention

The application provides a module of making a video recording for improve the formation of image quality of the module of making a video recording.

The application also provides an electronic device.

The camera module comprises an optical lens, a light ray adjusting assembly and an image sensor which are sequentially arranged along the direction of a main optical axis; the light adjustment assembly comprises a first light folding piece, a second light folding piece and a light blocking piece, the first light folding piece and the second light folding piece are arranged at intervals, the first light folding piece is located between the optical lens and the image sensor, light transmitted by the optical lens passes through the first light folding piece and the second light folding piece is transmitted to the image sensor, the light blocking piece is located between the first light folding piece and the second light folding piece, and the light blocking piece is used for blocking light and transmitting stray light between the first light folding piece and the second light folding piece.

It can be understood that, in the module of making a video recording, the light that is used for the formation of image is formation of image light, and the light that is not used for the formation of image is stray light, and stray light's existence can influence the formation of image quality of the module of making a video recording. After entering the optical lens, external light is emitted from the image side of the optical lens, is adjusted by the light adjusting assembly, namely is adjusted by the first light folding member and the second light folding member, and is finally transmitted to the image sensor for imaging, and the light can be understood as imaging light. And a small part of stray light can pass through a gap between the first light folding part and the second light folding part in the light ray adjusting assembly and is finally transmitted to an image sensor for imaging. The stray light also affects the transmission of imaging light when passing through a gap between the first light folding member and the second light folding member, and affects the imaging quality of the imaging light. And the stray light part can be transmitted to the image sensor, so that the imaging quality of the camera module is influenced.

This application the module of making a video recording through the light adjustment subassembly first refraction piece with set up between the second refraction piece the piece that is in the light, through the piece that is in the light shelters from the optical lens and passes first refraction piece with stray light between the second refraction piece can effectively avoid following the optical lens passes first refraction piece with stray light between the second refraction piece passes first refraction piece with the second refraction piece is avoided stray light passes on the image sensor, has improved the imaging quality of module of making a video recording.

In one embodiment, the first light folding member includes a first reflection surface, the second light folding member includes a second reflection surface, the first reflection surface and the second reflection surface are disposed opposite to each other, light transmitted from the optical lens sequentially passes through the first reflection surface and the second reflection surface to be reflected, the light blocking member includes a first light blocking member, and the first light blocking member is disposed on the first reflection surface and extends toward the second reflection surface. The first reflecting surface and the second reflecting surface are used for folding and focusing light rays transmitted to the image sensor from the optical lens, so that the total optical length of the camera module is increased under the condition that the camera module is guaranteed to be of a certain size, the zoom ratio of the camera module is increased, and the telephoto capability of the camera module is guaranteed.

In one embodiment, the first light barrier includes a first segment and a second segment connected to each other, the first segment is connected to the first reflective surface, and the second segment is bent toward a light incident side with respect to the first segment. The first light blocking piece is bent to block stray light with a large deflection angle, so that the stray light with the large deflection angle is effectively prevented from passing through the space between the first light folding piece and the second light folding piece and being transmitted to the image sensor, and the imaging quality of the camera module is effectively improved.

In one embodiment, the included angle between the first section and the second section is 90-180 degrees. The included angle between the first section and the second section is limited to 90-180 degrees, so that stray light with a large deflection angle can be effectively blocked, the stray light with the large deflection angle is prevented from passing through the first light folding piece and the second light folding piece and being transmitted to the image sensor, and the imaging quality of the camera module is improved.

In one embodiment, the area of the portion of the first light blocking member connected to the first reflecting surface is 1/3 or more of the total area of the first light blocking member. The first light blocking member is fixed more stably by limiting the area of the portion where the first light blocking member is connected to the first reflecting surface.

In one embodiment, the first reflecting surface includes a first surface and a second surface, the first surface and the second surface are disposed at an included angle, the second reflecting surface includes a third surface and a fourth surface, the third surface and the fourth surface are disposed at an included angle, the first surface and the third surface are disposed relatively, the second surface and the fourth surface are disposed relatively, the light transmitted by the optical lens is reflected from the first surface to the third surface, the fourth surface and the second surface in sequence, and the first light blocking member is disposed on the first surface or on the second surface. In summary, the light transmitted by the optical lens is reflected to the second reflecting surface through the first reflecting surface, and then reflected to the first reflecting surface by the second reflecting surface to complete folding of the light, so that the zoom ratio of the camera module is effectively improved, and the miniaturization of the camera module is facilitated.

In one embodiment, the light blocking member includes a second light blocking member, and the second light blocking member is disposed on a surface of the second light folding member facing the first light folding member, and extends toward the first light folding member and is opposite to the first light blocking member in a staggered manner. That is, the second light blocking member and the first light blocking member do not face each other. Through setting up the second light blocking member to make the second light blocking member with the cooperation of first light blocking member blocks stray light, can be better block stray light, guarantee the formation of image effect of module of making a video recording. Through with first light blocking piece with second light blocking piece dislocation relative setting, when first light blocking piece with when the interval between the second light blocking piece reduces, first light blocking piece with the second light blocking piece can not touch, thereby first light blocking piece with second light blocking piece can not influence when blockking stray light the motion between first light blocking piece with the second light blocking piece.

In one embodiment, the sum of the distance from the first light blocking member to the first light folding member and the distance from the second light blocking member to the second light folding member is greater than or equal to the distance between the first light folding member and the second light folding member, so that stray light cannot pass through a gap between the first light folding member and the second light folding member, and the imaging effect of the camera module is better ensured.

In one embodiment, the second light folding member includes a fifth surface connecting the third surface and the fourth surface, the fifth surface faces the first light folding member, and the second light blocking member is disposed on the fifth surface. That is, the second light-shielding member is a triangular prism, and the second light-shielding member is disposed on the triangular prism.

In one embodiment, the second light blocking member is disposed at an angle to the fifth surface. Therefore, the second light blocking piece is prevented from contacting the surface of the first light blocking piece and being scratched in the process of moving the first reflecting surface along the direction vertical to the main optical axis for focusing.

In one embodiment, an included angle between the second light blocking member and the fifth surface is 45 to 90 degrees. Through with the second light blocking piece with the contained angle restriction between the fifth face is 45 ~ 90 degrees to the in-process that first plane of reflection moved along the direction of perpendicular to main optical axis and focuses effectively avoids the second light blocking piece contact the surface of first light blocking piece and take place to scrape, still guarantees simultaneously first light blocking piece with the cooperation of second light blocking piece effectively blocks stray light.

In one embodiment, the second light blocking member includes a fixing portion and a light blocking portion, the fixing portion is fixed on the fifth surface, and the light blocking portion is disposed at an included angle with the fifth surface through the fixing portion. That is, the fixing portion is bent, and the light shielding portion is not bent. Of course, in other embodiments, the second light blocking member is an integrally formed integral structure, and the second light blocking member is bent to form an included angle with the fifth surface.

In one embodiment, the fifth surface includes a light extinction area for blocking stray light and a light transmission area for allowing light transmitted from the optical lens to pass through, and the second light blocking member is located in the light extinction area. Through set up the extinction area on the fifth face to block stray light from extinction area reflection or transmission, improve the formation of image quality of module of making a video recording. Meanwhile, the second light blocking piece is arranged in the light extinction area, so that the second light blocking piece is prevented from influencing the transmission of imaging light, and the imaging quality of the camera module is guaranteed.

In one embodiment, the second light folding element includes a corner surface disposed opposite to the fifth surface, and a dimension of the corner surface in the direction of the main optical axis is smaller than a dimension of the fifth surface in the direction of the main optical axis, so as to ensure that the corner surface does not affect propagation of light. The chamfer surface is formed by cutting off the angle of the second light folding element facing away from the fifth surface, and it can be understood that the cutting off of one angle by the second light folding element does not affect the propagation of light. Through the excision the angle that the second folded light spare dorsad the fifth face can reduce the volume of the second folded light spare is favorable to make a video recording the miniaturization of module.

In one embodiment, the included angle between the chamfer and the fifth face is greater than 5 degrees. The included angle between the corner cutting surface and the fifth surface is limited to be larger than 5 degrees, so that the light rays incident to the second light folding part can be effectively prevented from being emitted from the emergent light transmission area after being reflected by the corner cutting surface.

The electronic equipment comprises an image processor and the camera module, wherein the image processor is in communication connection with the camera module, the camera module is used for acquiring image data and inputting the image data into the image processor, and the image processor is used for processing the image data output from the image processor. Including above-mentioned module of making a video recording electronic equipment has fine image quality, simultaneously electronic equipment can also realize the slimming.

This application the module of making a video recording through the light adjustment subassembly first be folded the light piece with set up between the light piece is folded to the second first be in the light, through first be in the light the piece shelter from the optical lens transmit first fold the light piece with stray light between the light piece is folded to the second can effectively avoid following the optical lens transmits first fold the light piece with stray light between the light piece is folded to the second passes first fold the light piece with the light piece is folded to the second, avoids stray light transmits image sensor is last, has improved the imaging quality of module of making a video recording.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.

FIG. 1 is a schematic rear view of an electronic device according to one embodiment of the present application;

fig. 2 is a schematic structural diagram of a camera module of the electronic device shown in fig. 1;

fig. 3 is a schematic structural diagram of a camera module according to the related art;

FIG. 4 is a schematic view of a light adjustment assembly of the camera module shown in FIG. 2;

FIG. 5 is a schematic view of a second light folding member of the light ray adjustment assembly shown in FIG. 4;

FIG. 6 is a schematic view of the light adjustment assembly shown in FIG. 4 when the camera module is used for taking a long-distance view;

FIG. 7 is a schematic view of the light adjustment assembly shown in FIG. 4 when the camera module is used for shooting a close shot;

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

FIG. 9 is a schematic view of a light adjustment assembly of the camera module shown in FIG. 8;

fig. 10 is a schematic structural diagram of a camera module according to a third embodiment of the present application;

FIG. 11 is a schematic view of a light adjustment assembly of the camera module shown in FIG. 10;

fig. 12 is a schematic structural diagram of a camera module according to a fourth embodiment;

fig. 13 is a schematic structural diagram of a light adjustment assembly of the camera module shown in fig. 12.

Detailed Description

The embodiments of the present application will be described below with reference to the drawings.

The embodiment of the application provides an electronic device, and the electronic device is a mobile phone, a tablet computer, a portable computer, a video camera, a video recorder, a camera or other devices with photographing or shooting functions. The terminal comprises at least one optical lens, and the optical lens comprises a zoom lens, so that the terminal can achieve the zooming shooting effect. Referring to fig. 1, fig. 1 is a schematic back view of an electronic device according to an embodiment of the present disclosure. In this embodiment, theelectronic device 1000 is a mobile phone. The embodiment of the present application is described by taking theelectronic device 1000 as a mobile phone as an example.

Theelectronic device 1000 includes acamera module 100 and animage processor 200, theimage processor 200 is in communication with thecamera module 100, thecamera module 100 is configured to obtain image data and input the image data into theimage processor 200, and theimage processor 200 is configured to process the image data output therefrom. The communication connection between thecamera module 100 and theimage processor 200 may include data transmission through electrical connection such as wiring, or data transmission through coupling. It is understood that thecamera module 100 and theimage processor 200 may also be connected in communication by other means capable of data transmission. Theelectronic device 1000 including thecamera module 100 has good imaging quality, and theelectronic device 1000 can also be thinned.

The function of theimage processor 200 is to optimize the digital image signal through a series of complex mathematical algorithm operations, and finally transmit the processed signal to the display. Theimage processor 200 may be a single image Processing chip or a Digital Signal Processing (DSP) chip, and functions to transmit data obtained by the light sensing chip to the central Processing unit and refresh the light sensing chip in time and quickly, so that the quality of the DSP chip directly affects the picture quality (such as color saturation, sharpness, etc.). Theimage processor 200 may also be integrated in other chips, such as a central processing chip.

In the embodiment shown in fig. 1, thecamera module 100 is disposed on the back surface of theelectronic device 1000 and is a rear lens of theelectronic device 1000. It is understood that, in some embodiments, thecamera module 100 may also be disposed on the front surface of theelectronic device 1000 as a front lens of theelectronic device 1000. The front lens and the rear lens can be used for self-shooting and can also be used for shooting other objects by a photographer.

In some embodiments, there are a plurality ofcamera modules 100, and the plurality means two or more. Thedifferent camera modules 100 can function differently, so that different shooting scenes can be satisfied. For example, in some embodiments, the plurality ofimage capturing modules 100 includes a zoom lens module or a fixed focus lens module to perform the functions of zooming and fixed focus shooting, respectively. In the embodiment shown in fig. 1, there are two rear lenses of theelectronic apparatus 1000, and the twocamera modules 100 are a normal lens module and a zoom lens module, respectively. The common lens module can be applied to daily common shooting, and the zoom lens module can be applied to a scene needing zooming shooting. In some embodiments, a plurality ofdifferent camera modules 100 may be all communicatively connected to theimage processor 200, so as to process the image data captured by eachcamera module 100 through theimage processor 200.

It should be understood that the installation position of thecamera module 100 of theelectronic device 1000 of the embodiment shown in fig. 1 is only illustrative, and in some other embodiments, thecamera module 100 may be installed at other positions on the mobile phone, for example, thecamera module 100 may be installed at the upper middle or upper right corner of the back of the mobile phone. Alternatively, thecamera module 100 may be disposed on a component that is movable or rotatable relative to the mobile phone instead of the mobile phone body, for example, the component may extend, retract, or rotate from the mobile phone body, and the installation position of thecamera module 100 is not limited in this application.

Referring to fig. 2, fig. 2 is a schematic structural diagram of thecamera module 100 of theelectronic apparatus 1000 shown in fig. 1. Theimage capturing module 100 includes anoptical lens 10, a lightray adjusting assembly 20, and animage sensor 30 sequentially arranged along a main optical axis G direction, it can be understood that the main optical axis G direction is the main optical axis G direction of theoptical lens 10, that is, the lightray adjusting assembly 20 and theimage sensor 30 are both located on the image side of theoptical lens 10 and sequentially arranged along the main optical axis G direction of theoptical lens 10. The lightray adjusting assembly 20 includes a firstlight folding member 21, a secondlight folding member 22 and alight blocking member 23, the firstlight folding member 21 and the secondlight folding member 22 are disposed at intervals, the firstlight folding member 21 and the secondlight folding member 22 are located between theoptical lens 10 and theimage sensor 30, light rays transmitted from theoptical lens 10 are transmitted to theimage sensor 30 through the firstlight folding member 21 and the secondlight folding member 22, thelight blocking member 23 is located between the firstlight folding member 21 and the secondlight folding member 23, and thelight blocking member 23 is used for blocking stray light transmitted from theoptical lens 10 to between the firstlight folding member 21 and the secondlight folding member 22.

It can be understood that, in thecamera module 100, the light used for imaging is the imaging light P, and the light not used for imaging is the stray light L (as shown in fig. 3), and the existence of the stray light may affect the imaging quality of thecamera module 100. After entering theoptical lens 10, the external light is emitted from the image side of theoptical lens 10, adjusted by thelight adjusting assembly 20, i.e. adjusted by the firstrefractive element 21 and the secondrefractive element 22, and finally transmitted to theimage sensor 30 for imaging, where the light can be understood as an imaging light P. A small portion of the stray light L passes through the gap between the firstlight folding member 21 and the secondlight folding member 22 in thelight adjustment assembly 20, and is finally transmitted to theimage sensor 30 for imaging. The stray light also affects the transmission of the image light when passing through the gap between the first and secondlight folding members 21 and 22, and affects the image quality of the image light. And the stray light is transmitted to theimage sensor 30, which affects the imaging quality of thecamera module 100.

Thecamera module 100 is provided with thelight blocking member 23 between the firstlight blocking member 21 and the secondlight blocking member 22 of the lightray adjusting assembly 20, thelight blocking member 23 blocks stray light transmitted from theoptical lens 10 to the firstlight blocking member 21 and the secondlight blocking member 22, the stray light transmitted from theoptical lens 10 to the firstlight blocking member 21 and the secondlight blocking member 22 can be effectively prevented from passing through the firstlight blocking member 21 and the secondlight blocking member 22, the stray light is prevented from being transmitted to theimage sensor 30, and the imaging quality of thecamera module 100 is improved.

In this embodiment, theoptical lens 10 includes afirst lens 11 and asecond lens 12 disposed in order from an object side to an image side. Wherein the refractive powers of thefirst lens 11 and thesecond lens 12 are both positive numbers. That is, thefirst lens 11 and thesecond lens 12 are both convex lenses. Wherein the convex lens may be any one of a biconvex lens, a plano-convex lens and a convex-concave lens.

The surface of thefirst lens 11, which receives an incident beam toward the subject, may be a convex surface, a biconvex lens, a plano-convex lens, or a convex-concave lens having a thicker central portion than peripheral portions. The surface of thesecond lens 12 facing the incident beam of the subject 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. 2 illustrates an example in which thefirst lens 11 is a plano-convex lens and thesecond lens 12 is a convex-concave lens. Of course, in other embodiments, the optical lens 1010 may further include a plurality of lenses, and the plurality of lenses are sequentially disposed from the object side to the image side.

Theimage sensor 30 is embodied as a photosensitive chip, and the photosensitive element is a semiconductor chip, and the surface of the photosensitive element includes hundreds of thousands to millions of photodiodes, and when the photosensitive element is irradiated by light, charges are generated and converted into digital signals through an analog-to-digital converter chip. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide semiconductor (CMOS). The CCD is made of a semiconductor material having high sensitivity, and converts light into electric charges, which are converted into digital signals by an analog-to-digital converter chip. A CCD consists of many photosites, usually in mega pixels. When the CCD surface is irradiated by light, each photosensitive unit reflects charges on the component, and the signals generated by all the photosensitive units are added together to form a complete picture. The CMOS is mainly made of a semiconductor made of two elements, namely silicon and germanium, so that N (negatively charged) and P (positively charged) semiconductors coexist on the CMOS, and the current generated by the two complementary effects can be recorded and interpreted into an image by a processing chip.

Thecamera module 100 further includes an infrared filter (not shown) located between theoptical lens 10 and theimage sensor 30. The light passing through theoptical lens 10 is irradiated onto the infrared filter and transmitted to theimage sensor 30 through the infrared filter. The infrared filter may eliminate unnecessary light projected onto theimage sensor 30, and prevent theimage sensor 30 from generating a false color or moire, thereby improving its effective resolution and color reproducibility. In some embodiments, the infrared filter may also be fixed on an end of theoptical lens 10 facing the image side. Other components included in thecamera module 100 are not described in detail herein.

Thecamera module 100 further includes a driving member including afirst driving portion 51 and asecond driving portion 52. Thefirst driving portion 51 and thesecond driving portion 52 are respectively used for driving the lightray adjusting assembly 20 and related elements of other assemblies, and each of the first drivingportion 51 and thesecond driving portion 52 includes one or more driving portions, so that the driving portions of the first drivingportion 51 and thesecond driving portion 52 can respectively drive the lightray adjusting assembly 20 and related elements of other assemblies to perform focusing and/or optical anti-shake. When the first drivingportion 51 drives thelight adjustment assembly 20 to perform focusing, the first drivingportion 51 drives thelight adjustment assembly 20 to move along the main optical axis G of theoptical lens 10, so as to perform focusing. When thefirst driving unit 51 drives thelight adjustment assembly 20 to perform anti-shake, thelight adjustment assembly 20 is driven to move or rotate relative to theimage sensor 30 and/or thelight adjustment assembly 20 is driven to move or rotate relative to each other, so as to achieve optical anti-shake. Thefirst driving part 51 and the second drivingpart 52 may be respectively configured to drive a motor, or the like.

As shown in fig. 2, thecamera module 100 further includes ananti-shake compensation element 60, and theanti-shake compensation element 60 is disposed in front of theoptical lens 10 along a main optical axis G of theoptical lens 10. It is also understood that theanti-shake compensation member 60 is disposed between the subject and theoptical lens 10. Theanti-shake compensation member 60 includes a third optical foldingmember 61, wherein the third optical foldingmember 61 may be a reflective mirror, and the reflective mirror is a front reflective mirror. Thesecond driving portion 52 is used for driving thethird folding element 61 to rotate, so as to perform shake compensation on the light beam emitted from the object to be photographed. Specifically, thesecond driving portion 52 can drive the third light-foldingelement 61 to rotate in a plane parallel to the main optical axis G, for example, thesecond driving portion 52 drives the third light-foldingelement 61 to tilt at a small angle, so as to perform shake compensation on the plane parallel to the main optical axis G. Alternatively, the mirror of thethird folding member 61 may be the same as or different from the mirror of thefirst folding member 21. Alternatively, the second drivingpart 52 may be a driving device such as an optical anti-shake motor, a servo motor, or the like.

Of course, thecamera module 100 may further include a shake detector and a processor, wherein the shake detector may be a gyroscope. Specifically, the jitter detector detects a small movement and transmits a signal to the processor, the processor calculates a required compensation amount, and then controls thesecond driving portion 52 to drive thethird folding element 61 to adjust the position and the angle according to the calculated compensation amount. Of course, in other embodiments, theimage capturing module 100 does not include theanti-shake compensation element 60, and theimage capturing module 100 drives thelight adjustment assembly 20 to perform shake compensation on the light beam emitted from the object.

Referring to fig. 2 and 4, fig. 4 is a schematic structural diagram of thelight adjusting assembly 20 of thecamera module 100 shown in fig. 2. Thelight adjustment assembly 20 is used for folding the light of thecamera module 100, and improves the zoom ratio of thecamera module 100 while ensuring the miniaturization of thecamera module 100. In this embodiment, thelight adjusting assembly 20 folds the light path through the firstlight folding member 21 and the secondlight folding member 22. Thefirst driving portion 51 performs focusing by driving the firstrefractive element 21 to move in a direction perpendicular to the main optical axis G of theoptical lens 10, that is, the first drivingportion 51 performs focusing by driving the firstrefractive element 21 to approach or depart from the secondrefractive element 22. Specifically, the firstrefractive element 21 is a reflector, and the secondrefractive element 22 is a prism. Of course, in other embodiments, the firstlight folding member 21 is a mirror, and the secondlight folding member 22 is a mirror. Alternatively, thefirst refraction member 21 is a triangular prism, and thesecond refraction member 22 is a triangular prism. Alternatively, the firstrefractive element 21 is a prism, and the secondrefractive element 22 is a mirror. Thelight adjusting assembly 20 can also fold the light path through a plurality of refraction members, and the arrangement structure of the plurality of refraction members can be designed according to the actual light path.

Firstrefractive member 21 includes first plane ofreflection 211, secondrefractive member 22 includes second plane ofreflection 221, first plane ofreflection 211 sets up with second plane ofreflection 221 relatively, the light that passes fromoptical lens 10 loops through first plane ofreflection 211 and the reflection of second plane ofreflection 221, fold and focus the light that passes fromoptical lens 10 to imagesensor 30 through first plane ofreflection 211 and second plane ofreflection 221, thereby under the certain size's ofassurance camera module 100 circumstances, increasecamera module 100's optical overall length, and then increasecamera module 100's zoom magnification,guarantee camera module 100's telephoto capacity.

Specifically, the first reflecting surface 211 includes a first surface 2111 and a second surface 2112, the first surface 2111 and the second surface 2112 are disposed at an included angle, the first surface 2111 faces the optical lens 10, the second reflecting surface 221 includes a third surface 2211 and a fourth surface 2212, the second light folding member 22 further includes a fifth surface 222 connected between the third surface 2211 and the fourth surface 2212, the third surface 2211 and the fourth surface 2212 are disposed at an included angle, the first surface 2111 and the third surface 2211 are disposed opposite to each other, the second surface 2112 and the fourth surface 2212 are disposed opposite to each other, the fifth surface 222 faces the first light folding member 21, the light transmitted from the optical lens 10 is transmitted from the first surface 2111 to the third surface 2211 through the fifth surface 222, and is sequentially reflected from the third surface 2211 and the fourth surface 2212 and transmitted to the second surface 2112 through the fifth surface 222, in general terms, the light transmitted from the optical lens 10 is reflected to the second reflecting surface 211, and then reflected by the second reflecting surface 221 to the first reflecting surface 211 to complete the folded light folding of the first reflecting surface 211, the zoom magnification of the camera module 100 is effectively improved while the miniaturization of the camera module 100 is facilitated.

In this embodiment, thefirst face 2111 and thesecond face 2112 are disposed at a right angle, and thethird face 2211 and thefourth face 2212 are disposed at a right angle. The firstlight folding member 21 is formed by splicing two reflectors at an included angle, and thefirst surface 2111 and thesecond surface 2112 are the reflecting surfaces of the two reflectors respectively. Thesecond refraction member 22 is a single triangular prism. Of course, in other embodiments, the included angle between thefirst face 2111 and thesecond face 2112, and the included angle between thethird face 2211 and thefourth face 2212 can also be set according to actual needs. Thefirst folding member 21 is an integral corner-clipping reflector, or a prism or a polygon mirror. The secondlight folding element 22 may also be formed by two reflectors joined at an included angle.

Referring to fig. 5, fig. 5 is a schematic structural diagram of the secondlight folding member 22 of thelight adjusting assembly 20 shown in fig. 4. Thefifth surface 222 includes two light-attenuating regions a and two light-transmitting regions b, where the light-transmitting regions b are used for allowing light rays transmitted from theoptical lens 10 to pass through, in this embodiment, one light-transmitting region is an incident light-transmitting region allowing light rays reflected from thefirst surface 2111 to pass through and transmit to thethird surface 2211, and the other light-transmitting region is an emergent light-transmitting region allowing light rays reflected from thefourth surface 2212 to pass through and transmit to thesecond surface 2112, and the light-attenuating regions a are used for blocking stray light, so as to prevent the stray light reflected by the first light-foldingmember 21 from entering the second light-foldingmember 22, and prevent the stray light reflected inside the second light-foldingmember 22 from exiting to the first light-foldingmember 21 through the second light-foldingmember 22. Thefifth surface 222 is provided with the extinction area a to prevent stray light from being reflected or transmitted from the extinction area a, so that the imaging quality of thecamera module 100 is improved.

As shown in fig. 4, thelight blocking member 23 includes a firstlight blocking member 231 and a secondlight blocking member 232, and the firstlight blocking member 231 is provided on the first reflectingsurface 211 and extends toward the second reflectingsurface 221. Specifically, the firstlight blocking member 231 is connected to thefirst surface 2111 of thefirst reflection surface 211, and is located at a position where thefirst surface 2111 is close to thesecond surface 2112, and is fixed to thefirst surface 2111 by an adhesive. The secondlight blocking member 232 is disposed on a surface of the secondlight folding member 22 facing the firstlight folding member 21, and extends toward the firstlight folding member 21 and is opposite to the firstlight blocking member 231 in a staggered manner, that is, the secondlight blocking member 232 is not opposite to the firstlight blocking member 231. Specifically, the secondlight blocking member 232 is disposed on thefifth surface 222 and located in the light extinction area a. Through locating the extinction area a with secondlight blocking member 232 to avoid setting up of secondlight blocking member 232 to influence the propagation of formation of image light, guarantee the imaging quality ofmodule 100 of making a video recording. Of course, in other embodiments, the first light-blockingmember 231 is disposed on thesecond face 2112, or the first light-blockingmember 231 may be disposed on both thefirst face 2111 and thesecond face 2112. Alternatively, the firstlight blocking member 231 and the secondlight blocking member 232 may be provided on other structures, for example, on a member fixing the firstlight folding member 21 and the secondlight folding member 22.

Meanwhile, the firstlight blocking member 231 and the secondlight blocking member 232 are arranged, so that the secondlight blocking member 232 and the firstlight blocking member 231 are matched to block stray light, the stray light can be better blocked, and the imaging effect of thecamera module 100 is ensured. By arranging the firstlight blocking member 231 and the secondlight blocking member 232 in a staggered manner, when the first drivingportion 51 drives the firstlight blocking member 21 to reduce the distance between the firstlight blocking member 21 and the secondlight blocking member 22, the firstlight blocking member 231 and the secondlight blocking member 232 do not touch, so that the firstlight blocking member 231 and the secondlight blocking member 232 do not affect the movement between the firstlight blocking member 21 and the secondlight blocking member 22 while blocking stray light.

The firstlight blocking member 231 is sheet-shaped, and the area of a portion of the firstlight blocking member 231 connected to thefirst face 2111 of the first reflectingsurface 211 is 1/3 or more of the total area of the firstlight blocking member 231. The firstlight blocking member 231 is fixed more stably by limiting the area of a portion where the firstlight blocking member 231 is connected to thefirst reflection surface 211.

In this embodiment, the firstlight blocking member 231 is a Soma sheet, which is a kind of PET polyester film, and is a black color film with high light blocking performance and no reflection, and since the thickness of the black color film can be made thin, both the thickness and the extinction characteristic can be taken into consideration, that is, the Soma sheet is thin enough and has good light blocking performance, so as to effectively block stray light and improve the imaging quality of thecamera module 100. Of course, in other embodiments, the firstlight blocking member 231 may also be a mylar sheet, a common PC film, a foam, or other film with extinction characteristics.

As shown in fig. 4 and 5, the secondlight blocking member 232 includes a fixingportion 2321 and alight blocking portion 2322 connected to each other, the fixingportion 2321 is fixed on thefifth surface 222, and thelight blocking portion 2322 is fixed to thefifth surface 222 through the fixingportion 2321. Specifically, the secondlight blocking member 232 is disposed perpendicular to thefifth surface 222.

In this embodiment, the fixingportion 2321 and thelight shielding portion 2322 are made of different materials, thelight shielding portion 2322 may be a Soma sheet which is the same as the firstlight blocking member 231, the fixingportion 2321 may be made of plastic, and the fixingportion 2321 and thelight shielding portion 2322 are connected by other connection methods such as clamping, bonding, and the like. The fixingportion 2321 has light-shielding properties by a light-extinction process. Of course, in other embodiments, thelight shielding portion 2322 may be a mylar sheet, a common PC film, or a film made of other materials with extinction characteristics, such as foam. The fixingportion 2321 may be metal, rubber, or the like. The fixingportion 2321 and thelight shielding portion 2322 may be made of the same material, and the fixingportion 2321 and thelight shielding portion 2322 may be integrally formed by injection molding. Alternatively, the secondlight blocking member 232 may have only thelight blocking portion 2322, and thelight blocking portion 2322 may be connected to thefifth surface 222 by a fastening method such as snapping, bonding, or the like.

In this embodiment, the sum of the distance from the firstlight blocking member 231 to the firstlight folding member 21 and the distance from the secondlight blocking member 232 to the secondlight folding member 22 is greater than or equal to the distance between the firstlight folding member 21 and the secondlight folding member 22. It can be understood that, as shown in fig. 6 and 7, during the process of thecamera module 100 from the long shot to the short shot, the first drivingportion 51 drives the firstlight folding member 21 to move relative to the second light folding member, and during the zooming, the lengths h1 and h2 of the overlapping portions of the firstlight blocking member 231 and the secondlight blocking member 232 in the direction perpendicular to the optical axis are both greater than zero, and of course, the lengths h1 and h2 of the overlapping portions of the firstlight blocking member 231 and the secondlight blocking member 232 in the direction perpendicular to the optical axis may also be equal to zero, so that the stray light cannot pass through the gap between the firstlight folding member 21 and the secondlight folding member 22, and the imaging effect of thecamera module 100 is better ensured.

Referring to fig. 8 and 9, fig. 8 is a schematic structural diagram of acamera module 100 according to a second embodiment of the present application, and fig. 9 is a schematic structural diagram of alight adjusting assembly 20 of thecamera module 100 shown in fig. 8. This embodiment is substantially the same as the previous embodiment, except that all three corners of the second light-foldingmember 22 in this embodiment are cut and processed for extinction, and it can be understood that the three corners of the second light-foldingmember 22 are cut without affecting the light propagation. The volume of the secondlight folding member 22 can be reduced by cutting off three angles of the secondlight folding member 22, which is beneficial to the miniaturization of thecamera module 100. Thesecond folder 22 includes acorner cutting surface 223 opposite to thefifth surface 222, and it is understood that thecorner cutting surface 223 is formed by cutting off a corner of thesecond folder 22 facing away from thefifth surface 222. In this embodiment, the size of thecorner surface 223 in the direction of the main optical axis G is smaller than the size of thefifth surface 222 in the direction of the main optical axis G, so as to ensure that thecorner surface 223 does not affect the propagation of the light. The included angle theta between thecorner cutting surface 223 and thefifth surface 222 is larger than 5 degrees, and the included angle theta between thecorner cutting surface 223 and thefifth surface 222 is limited to be larger than 5 degrees, so that light rays entering the secondlight folding part 22 can be effectively prevented from being emitted from the emitting light-transmitting area after being reflected by thecorner cutting surface 223, stray light is effectively avoided, and the imaging quality of thecamera module 100 is improved.

Of course, in other embodiments, the included angle θ between thetangential surface 223 and thefifth surface 222 may be less than or equal to 5 degrees. At least one of the three corners of the secondlight folding member 22 is cut off and is subjected to extinction processing, so that the volume of the secondlight folding member 22 can be reduced, and the miniaturization of thecamera module 100 is facilitated, for example, the corner of the secondlight folding member 22 opposite to thefifth surface 222 is cut off.

The secondlight blocking member 232 includes a fixingportion 2321 and alight blocking portion 2322 connected to each other, the fixingportion 2321 is fixed on thefifth surface 222, and thelight blocking portion 2322 is disposed at an angle with thefifth surface 222 through the fixingportion 2321. That is, the fixingportions 2321 are bent, and thelight shielding portions 2322 are not bent. In this embodiment, the fixingportion 2321 and thelight shielding portion 2322 are made of different materials, the fixingportion 2321 is a bent metal sheet, a part of the fixing degree is fixed on thefifth surface 222, another part of the fixing degree is connected with thelight shielding portion 2322, two parts of the fixingportion 2321 are arranged to form an included angle, and the size of the included angle determines the size of the angle between thelight shielding portion 2322 and thefifth surface 222. Thelight shielding portion 2322 may be the same Soma sheet as the firstlight blocking member 231. Of course, in other embodiments, thelight shielding portion 2322 may be a mylar sheet, a common PC film, or a film made of other materials with extinction characteristics, such as foam. The fixingportion 2321 and theshading portion 2322 may be made of the same material, the secondlight blocking member 232 is an integral structure, and the secondlight blocking member 232 is bent to form an included angle with thefifth surface 222.

Specifically, the included angle α between the secondlight blocking member 232 and thefifth surface 222 is 45 to 90 degrees (including 45 degrees and 90 degrees). That is, the angle between the two parts of the fixingportion 2321 is 90 to 135 degrees. Through restricting the contained angle alpha between secondlight blocking member 232 and thefifth face 222 to 45 ~ 90 degrees to in-process that focuses is carried out in the removal of first plane ofreflection 211 along the direction of perpendicular to main optical axis G, firstlight blocking member 231 is dodged to secondlight blocking member 232, effectively avoids secondlight blocking member 232 to contact the surface of firstlight blocking member 231 and take place the scratch, still guarantees firstlight blocking member 231 and the cooperation of secondlight blocking member 232 simultaneously, effectively blocks stray light.

Referring to fig. 10 and 11, fig. 10 is a schematic structural diagram of acamera module 100 according to a third embodiment of the present application, and fig. 11 is a schematic structural diagram of alight adjusting assembly 20 of thecamera module 100 shown in fig. 10. The present embodiment is substantially the same as the second embodiment, except that in the present embodiment, the firstlight blocking member 231 includes afirst section 2311 and asecond section 2312 which are connected, thefirst section 2311 and thesecond section 2312 are an integral structure, thefirst section 2311 is connected with thefirst surface 2111 of the firstreflective surface 211, and thesecond section 2312 is bent toward the light incident side relative to thefirst section 2311, that is, thesecond section 2312 is bent toward the secondlight blocking member 232. The firstlight blocking member 231 is made of rubber so that the firstlight blocking member 231 can be bent, and meanwhile, the rubber has certain flexibility, and the secondlight blocking member 22 cannot be scratched or damaged by impact when thecamera module 100 is subjected to reliability test or focusing. The firstlight blocking member 231 is bent, so that a gap between the firstlight blocking member 231 and the secondlight blocking member 232 is reduced, stray light with a large deflection angle is blocked, the stray light with the large deflection angle is effectively prevented from passing through the firstlight blocking member 21 and the secondlight blocking member 22 and being transmitted to theimage sensor 30, and the imaging quality of thecamera module 100 is effectively improved. Of course, in other embodiments, the firstlight blocking member 231 may also be made of metal or other materials as long as the firstlight blocking member 231 can be formed in a bent shape.

Specifically, the included angle β between thefirst section 2311 and thesecond section 2312 is 90-180 degrees (including 90 degrees and 180 degrees). By limiting the included angle β between thefirst section 2311 and thesecond section 2312 to 90-180 degrees, for example, the included angle β is limited to 135 degrees, so that stray light with a large deflection angle can be effectively blocked, the stray light with the large deflection angle is prevented from passing between the firstlight folding piece 21 and the secondlight folding piece 22 and being transmitted to theimage sensor 30, and the imaging quality of thecamera module 100 is improved. Of course, in other embodiments, the included angle β between the first andsecond sections 2311, 2312 may be other degrees.

Referring to fig. 12 and 13, fig. 12 is a schematic structural diagram of acamera module 100 according to a fourth embodiment of the present application, and fig. 13 is a schematic structural diagram of alight adjusting assembly 20 of thecamera module 100 shown in fig. 12. The present embodiment is substantially the same as the first embodiment, except that in the present embodiment, the firstlight folding member 21 and the secondlight folding member 22 are both mirrors, the firstlight folding member 21 includes afirst reflection surface 211, the secondlight folding member 22 includes asecond reflection surface 221, and thefirst reflection surface 211 and thesecond reflection surface 221 are disposed opposite to each other. Specifically, thefirst reflection surface 211 includes afirst surface 2111 and asecond surface 2112, thefirst surface 2111 and thesecond surface 2112 are disposed at an included angle, thefirst surface 2111 faces theoptical lens 10, thesecond reflection surface 221 includes athird surface 2211 and afourth surface 2212, thethird surface 2211 and thefourth surface 2212 are disposed at an included angle, thefirst surface 2111 and thethird surface 2211 are disposed opposite to each other, thesecond surface 2112 and thefourth surface 2212 are disposed opposite to each other, light transmitted from theoptical lens 10 is sequentially reflected from thefirst surface 2111 to thethird surface 2211, thefourth surface 2212 and thesecond surface 2112, and finally transmitted from thesecond surface 2112 to theimage sensor 30.

In this embodiment, thefirst face 2111 and thesecond face 2112 are disposed at a right angle, and thethird face 2211 and thefourth face 2212 are disposed at a right angle. The firstlight folding member 21 is formed by splicing two reflectors at an included angle, and thefirst surface 2111 and thesecond surface 2112 are the reflecting surfaces of the two reflectors respectively. The secondlight folding part 22 is formed by splicing two reflectors at an included angle, and thethird surface 2211 and thefourth surface 2212 are reflecting surfaces of the two reflectors respectively. Of course, in other embodiments, the included angle between thefirst face 2111 and thesecond face 2112, and the included angle between thethird face 2211 and thefourth face 2212 can also be set according to actual needs. The firstlight folding part 21 and the secondlight folding part 22 are both an integral included angle reflector. The first andsecond refractors 21 and 22 may be triangular prisms.

Thelight blocking member 23 of the present application may include only the firstlight blocking member 231. The firstlight blocking member 231 is disposed on the firstlight folding member 21, and the secondlight folding member 22 is not disposed thereon. The firstlight blocking member 231 is sheet-shaped, and the firstlight blocking member 231 is disposed on thefirst reflection surface 211 and extends toward thesecond reflection surface 221. Specifically, the firstlight blocking member 231 is connected to thesecond surface 2112 of thefirst reflection surface 211 and is located at a position where thesecond surface 2112 is close to thefirst surface 2111. Of course, in other embodiments, the first light-blockingmember 231 is disposed on thefirst face 2111, or the first light-blockingmember 231 may be disposed on both thefirst face 2111 and thesecond face 2112. The end of the firstlight blocking member 231 facing away from the firstlight folding member 21 may also be folded toward the light incident side.

The area of the portion of the firstlight blocking member 231 connected to thesecond face 2112 of the first reflectingface 211 is 1/3 or more of the total area of the firstlight blocking member 231. By limiting the area of the portion of the firstlight blocking member 231 connected to the first reflectingsurface 211, the firstlight blocking member 231 can be firmly fixed on the first reflectingsurface 211, so that the firstlight blocking member 231 can be fixed more stably.

In this embodiment, the firstlight blocking member 231 is a Soma sheet, which is a kind of PET polyester film, and is a black color film with high light blocking performance and no reflection, and since the thickness of the black color film can be made thin, both the thickness and the extinction characteristic can be taken into consideration, that is, the Soma sheet is thin enough and has good light blocking performance, so as to effectively block stray light and improve the imaging quality of thecamera module 100. Of course, in other embodiments, the firstlight blocking member 231 may also be a mylar sheet, a common PC film, a foam, or other film with extinction characteristics.

The protection scope of the present application is not limited to the first to fourth embodiments, and any combination of the first to fourth embodiments is also within the protection scope of the present application, that is, the above-described embodiments may be combined arbitrarily according to actual needs.

Thisapplication camera module 100 is through setting up firstlight blocking member 231 between firstlight blocking member 21 and the secondlight blocking member 22 atlight adjustment assembly 20, block from the stray light that transmits between firstlight blocking member 21 and the secondlight blocking member 22 fromoptical lens 10 through firstlight blocking member 231, can effectively avoid passing firstlight blocking member 21 and secondlight blocking member 22 from the stray light thatoptical lens 10 transmitted between firstlight blocking member 21 and the secondlight blocking member 22, avoid on stray light transmitsimage sensor 30, the imaging quality ofcamera module 100 has been improved.

The above embodiments and embodiments of the present application are only examples and embodiments, and the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and all the changes or substitutions should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (16)

1. A camera module is characterized by comprising an optical lens, a light ray adjusting assembly and an image sensor which are sequentially arranged along the direction of a main optical axis; the light adjustment assembly comprises a first light folding piece, a second light folding piece and a light blocking piece, the first light folding piece and the second light folding piece are arranged at intervals, the first light folding piece is located between the optical lens and the image sensor, light transmitted by the optical lens passes through the first light folding piece and the second light folding piece is transmitted to the image sensor, the light blocking piece is located between the first light folding piece and the second light folding piece, and the light blocking piece is used for blocking light and transmitting stray light between the first light folding piece and the second light folding piece.

2. The camera module according to claim 1, wherein the first light refracting element includes a first reflecting surface, the second light refracting element includes a second reflecting surface, the first reflecting surface and the second reflecting surface are disposed opposite to each other, light transmitted from the optical lens sequentially passes through the first reflecting surface and the second reflecting surface to be reflected, the light blocking element includes a first light blocking element, and the first light blocking element is disposed on the first reflecting surface and extends toward the second reflecting surface.

3. The camera module according to claim 2, wherein the first light blocking member comprises a first section and a second section connected to each other, the first section is connected to the first reflecting surface, and the second section is bent toward the light incident side relative to the first section.

4. The camera module of claim 3, wherein an included angle between the first section and the second section is 90-180 degrees.

5. The camera module according to any one of claims 2 to 4, wherein the area of the portion of the first light blocking member connected to the first reflecting surface is 1/3 or more of the total area of the first light blocking member.

6. The camera module according to any one of claims 2 to 5, wherein the first reflecting surface includes a first surface and a second surface, the first surface and the second surface are disposed at an angle, the second reflecting surface includes a third surface and a fourth surface, the third surface and the fourth surface are disposed at an angle, the first surface and the third surface are disposed opposite to each other, the second surface and the fourth surface are disposed opposite to each other, light transmitted from the optical lens is reflected from the first surface to the third surface, the fourth surface and the second surface in sequence, and the first light blocking member is disposed on the first surface or on the second surface.

7. The camera module according to claim 6, wherein the light blocking member comprises a second light blocking member, and the second light blocking member is disposed on a surface of the second light folding member facing the first light folding member, extends toward the first light folding member, and is opposite to the first light blocking member in a staggered manner.

8. The camera module of claim 7, wherein a sum of a distance from the first light blocking member to the first light folding member and a distance from the second light blocking member to the second light folding member is greater than or equal to a distance between the first light folding member and the second light folding member.

9. The camera module according to claim 7 or 8, wherein the second light-folding member includes a fifth surface connecting the third surface and the fourth surface, the fifth surface faces the first light-folding member, and the second light-blocking member is disposed on the fifth surface.

10. The camera module of claim 9, wherein the second light blocking member is disposed at an angle with respect to the fifth surface.

11. The camera module of claim 10, wherein an angle between the second light blocking member and the fifth surface is 45-90 degrees.

12. The camera module according to claim 10 or 11, wherein the second light blocking member comprises a fixing portion and a light blocking portion, the fixing portion is fixed on the fifth surface, and the light blocking portion is disposed at an angle with respect to the fifth surface through the fixing portion.

13. The camera module of any of claims 9-12, wherein the fifth surface comprises a light-extinction area for blocking stray light and a light-transmission area for allowing light transmitted from the optical lens to pass through, and the second light-blocking member is located in the light-extinction area.

14. The camera module according to any one of claims 9 to 13, wherein the second light folding member includes a corner surface disposed opposite to the fifth surface, and a dimension of the corner surface in the direction of the main optical axis is smaller than a dimension of the fifth surface in the direction of the main optical axis.

15. The camera module of claim 14, wherein an angle between the chamfer and the fifth surface is greater than 5 degrees.

16. An electronic device comprising an image processor and the camera module of any one of claims 1-15, wherein the image processor is in communication with the camera module, wherein the camera module is configured to capture image data and input the image data into the image processor, and wherein the image processor is configured to process the image data output therefrom.

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