CN115428429A - Periscopic camera module, multi-camera module and camera module assembling method - Google Patents

Periscopic camera module, multi-camera module and camera module assembling method Download PDF

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Publication number
CN115428429A
CN115428429A CN202180030717.9A CN202180030717A CN115428429A CN 115428429 A CN115428429 A CN 115428429A CN 202180030717 A CN202180030717 A CN 202180030717A CN 115428429 A CN115428429 A CN 115428429A
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CN
China
Prior art keywords
camera module
module
periscopic camera
light turning
light
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Pending
Application number
CN202180030717.9A
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Chinese (zh)
Inventor
戎琦
王超
袁栋立
戚杨迪
梅哲文
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Ningbo Sunny Opotech Co Ltd
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Ningbo Sunny Opotech Co Ltd
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Publication of CN115428429A publication Critical patent/CN115428429A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32Means for focusing
    • G03B13/34Power focusing
    • G03B13/36Autofocus systems
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/02Bodies
    • G03B17/17Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00Adjustment of optical system relative to image or object surface other than for focusing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/54Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/55Optical parts specially adapted for electronic image sensors; Mounting thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/67Focus control based on electronic image sensor signals

Abstract

The application discloses periscopic camera module, make a video recording module and camera module's assembly method more. This periscopic module of making a video recording includes: an optical anti-shake portion; an auto-focusing part corresponding to the optical anti-shake part, and a photosensitive chip corresponding to the auto-focusing part. The periscopic camera module adopts a specific optical system design, so that the corresponding optical system can obtain better comprehensive performance in the aspects of optical performance, difficulty in constructing the optical system, difficulty in adjusting the optical system and the like.

Description

Periscopic camera module, multi-camera module and camera module assembling method Technical Field
The application relates to the field of camera modules, and more particularly to a periscopic camera module, a plurality of camera modules and a camera module assembling method.
Background
With the popularization of mobile electronic devices (especially smart phones), the importance of camera modules applied to mobile electronic devices for helping users to obtain images (such as videos or images) is becoming more and more prominent.
In recent years, terminal electronic devices capable of simultaneously performing close-range shooting and long-range shooting are becoming more popular in the market, and the demand for long-range shooting is becoming more and more intense. However, the camera module configuration required for long-range shooting is contradictory to the trend of miniaturization and thinning of terminal equipment: in order to realize long-range shooting, the camera module needs to have a larger focal length, and in the conventional linear module design, the overall size (especially the height size) of the camera module is inevitably increased, and the application of the camera module on the terminal equipment is influenced.
Therefore, a scheme of turning the optical path is proposed in the market to realize long-range shooting, namely, a periscopic camera module. Compared with a conventional linear camera module, the periscopic camera module is special in optical system, the focal length of the module is increased through bending of a light path, and the height size of the periscopic camera module is close to that of the linear module, so that the assembly requirement of the terminal equipment can be met.
Although the existing periscopic camera module realizes the capability of long-range shooting to a certain extent, the existing periscopic camera module still cannot well meet the market requirements. Compared with the conventional linear camera module, the periscopic camera module has the advantages that the design of the periscopic optical system is more complex, the structural design is more complex, the assembly difficulty is higher, the test process is more difficult, the periscopic camera module also needs to meet the anti-shake requirement in some application occasions, and the development of the periscopic camera module is limited by the factors.
Disclosure of Invention
The main advantage of the present application is to provide a periscopic camera module, a multi-camera module and an assembling method of the camera module, which can obtain superior overall performance in the aspects of optical performance, difficulty in constructing an optical system, difficulty in adjusting the optical system and the like by adopting a specific optical system design.
Another advantage of the present application is to provide a periscopic camera module, a multi-camera module, and a method of assembling a camera module, wherein the periscopic camera module employs a specific optical system design to transfer a portion of its dimensions to a Z-direction dimension that is relatively more acceptable and designed, thereby reducing its dimensions in the X or Y direction. Here, in a specific example of the present application, when the periscopic camera module is installed in the smartphone, the Z direction of the periscopic camera module corresponds to the thickness direction of the smartphone, the X direction thereof corresponds to the width direction of the smartphone, and the Y direction thereof corresponds to the length direction of the smartphone.
Another advantage of the present application is to provide a periscopic camera module, a plurality of camera modules and a method for assembling the camera module, wherein the periscopic camera module adopts a specific optical system design, so that the periscopic camera module has a relatively better aperture parameter and a relatively longer effective focal length. In particular, in the embodiment of the present application, by the specific optical system design, the aperture value of the periscopic camera module is smaller than F4.0 and the range of the effective focal length thereof is larger than 10mm.
Another advantage of the present application is to provide a periscopic camera module, a multi-camera module, and an assembling method of the camera module, wherein the periscopic camera module adopts a design scheme that facilitates modularization in its optical system design, so as to facilitate the construction of the optical system and the adjustment of the optical system. Specifically, in the embodiment of the present application, the periscopic imaging module is divided into an optical anti-shake part and an autofocus part in the design of an optical system thereof.
Another advantage of the present application is to provide a periscopic camera module, a multi-camera module and an assembling method of a camera module, wherein the optical anti-shake part and/or the automatic focusing part of the periscopic camera module can be configured into an integrated modular structure, so as to facilitate reducing the assembling difficulty and improving the assembling precision.
Another advantage of the present application is to provide a periscopic camera module, a plurality of camera modules and an assembling method of the camera module, wherein the periscopic camera module realizes optical anti-shake by adjusting an optical lens used for collecting external light through an anti-shake motor, and is easier to be implemented compared to the existing scheme of realizing optical anti-shake by adjusting a lens or a light turning element disposed in a housing.
Another advantage of the present application is to provide a periscopic camera module, a multi-camera module, and an assembling method of the camera module, wherein the auto-focusing portion includes at least two light turning surfaces, and the second carrier enables a determined positional relationship between the at least two light turning elements, so that driving the second carrier to focus has a relatively higher focusing efficiency and a more precise focusing control.
Another advantage of the present application is to provide a periscopic camera module, a plurality of camera modules and an assembling method of the camera modules, wherein the periscopic camera modules are assembled in a modular manner, so as to facilitate the improvement of the assembling efficiency and the assembling and matching precision.
According to an aspect of the present application, there is provided an optical assembly including:
the optical lens is used for receiving imaging light rays from the outside to form a first light beam with a first optical axis;
a first light turning element corresponding to the optical lens for turning the first light beam to form a second light beam having a second optical axis perpendicular to the first optical axis;
a second light turning element corresponding to the first light turning element, for turning the second light beam to form a third light path having a third optical axis, the third optical axis being perpendicular to a plane set by the first optical axis and the second optical axis;
a third light turning element corresponding to the second light turning element for turning the third light beam to form a fourth light beam having a fourth optical axis, the fourth optical axis being perpendicular to the third optical axis; and
and the photosensitive chip is used for receiving the fourth light beam.
In the periscopic camera module according to the present application, the optical lens and the first light turning element have an integrated modular structure.
In the periscopic camera module according to the present application, the periscopic camera module further includes a first carrier, the first carrier has an upper surface and a mounting groove concavely formed on the first carrier, the first light turning element is mounted in the mounting groove, and the optical lens is mounted on the upper surface.
In the periscopic camera module according to the application, the periscopic camera module further comprises a driving element for driving the optical lens to perform optical anti-shake.
In the periscopic camera module according to the application, the periscopic camera module further comprises a driving element for driving the optical lens to perform optical anti-shake, wherein the optical lens is mounted on the driving element, and the driving element is mounted on the upper surface of the first carrier.
In the periscopic camera module according to the present application, the second light turning element and the third light turning element have an integrated modular structure.
In the periscopic camera module according to the present application, the periscopic camera module further comprises a second carrier, wherein the second light turning element and the third light turning element are mounted on the second carrier.
In the periscopic camera module according to the present application, a gap is formed between the second light turning element and the third light turning element.
In the periscopic camera module according to the application, the second carrier comprises a first positioning installation groove and a second positioning installation groove which are mutually spaced, the second light turning element is installed in the first positioning installation groove, and the third light turning element is installed in the second positioning installation groove.
In the periscopic camera module according to the application, the periscopic camera module further comprises a second driving element for driving the second carrier to move.
In the periscopic camera module according to the present application, the second driving element is configured to drive the second carrier to move along the direction of the second optical path or the fourth optical path.
In the periscopic camera module according to the present application, the optical lens includes at least three optical lenses, wherein the at least three optical lenses include at least one glass lens.
In the periscopic camera module according to the application, the optical lens which is located at the outermost side and faces the outside is a glass lens.
In the periscopic camera module according to the application, the effective focal length's of periscopic camera module scope is for being greater than 10mm.
In the periscopic camera module according to the application, the effective focal length's of periscopic camera module scope is 15mm to 25mm.
In the periscopic camera module according to the application, the aperture value of the periscopic camera module is less than F4.0.
In the periscopic camera module according to the application, the aperture value of the periscopic camera module is less than F2.0.
In the periscopic camera module according to the application, the diaphragm diameter of periscopic camera module is greater than or equal to 5mm.
In the periscopic camera module according to the application, the periscopic camera module further comprises an outer shell used for packaging the first carrier, the second carrier and the photosensitive chip.
According to another aspect of the present application, there is provided a periscopic camera module, which includes:
an optical anti-shake portion;
an auto-focusing part corresponding to the optical anti-shake part; and
a photosensitive chip corresponding to the auto-focusing part.
In the periscopic camera module according to the application, optics anti-shake part includes:
the optical lens is used for receiving imaging light rays from the outside to form a first light beam with a first optical axis;
a first light turning element corresponding to the optical lens for turning the first light beam to form a second light beam having a second optical axis perpendicular to the first optical axis;
a first carrier having a mounting groove with an upper surface concavely formed on the first carrier, the first light turning element being mounted in the mounting groove; and
and the driving element is used for driving the optical lens to perform optical anti-shake, wherein the driving element is installed on the upper surface of the first carrier, and the optical lens is installed on the driving element, so that the optical lens, the driving element and the first light turning element have an integrated modular structure.
In a periscopic camera module according to the present application, the autofocus part includes:
a second light turning element corresponding to the first light turning element for turning the second light beam to form a third light path having a third optical axis perpendicular to a plane set by the first optical axis and the second optical axis;
a third light turning element corresponding to the second light turning element for turning the third light beam to form a fourth light beam having a fourth optical axis, the fourth optical axis being perpendicular to the third optical axis; and
a second carrier, wherein the second carrier includes a first positioning mounting groove and a second positioning mounting groove which are spaced from each other, the second light turning element is mounted in the first positioning mounting groove, and the third light turning element is mounted in the second positioning mounting groove, so that the second light turning element and the third light turning element have an integrated modular structure; and
a second drive element for driving the second carrier to move.
In the periscopic camera module according to the present application, the periscopic camera module further includes an outer housing for enclosing the optical anti-shake part, the auto-focusing part and the photosensitive chip, wherein the second carrier is movably mounted to the outer housing through the second driving element.
In the periscopic camera module according to the application, the effective focal length's of periscopic camera module scope is greater than 10mm.
In the periscopic camera module according to the application, the aperture value of periscopic camera module is less than F4.0.
In the periscopic camera module according to the application, the diaphragm diameter of periscopic camera module is greater than or equal to 5mm.
According to still another aspect of the present application, there is also provided a multi-camera module, including:
the periscopic camera module is arranged; and
and the ratio of the equivalent focal length of the periscopic camera module to the equivalent focal length of the second camera module is greater than or equal to 6.
In the module of making a video recording more according to this application, the equivalent focal length of periscopic camera module and the second camera module's equivalent focal length's ratio is more than or equal to 10.
According to another aspect of the present application, there is also provided a periscopic camera module assembly method, including: assembling an optical lens, a driving element and a first light turning element on a first carrier to form a first module; assembling the second light turning element and the third light turning element on a second carrier to form a second module; determining the installation position of the photosensitive chip based on the position relation between the first module and the second module; and mounting the photosensitive chip at the mounting position.
In the assembly method of the periscopic camera module according to the present application, the optical lens, the driving element and the first optical turning element are mounted on the first carrier to form a first module, comprising: mounting the optical lens to the driving element to form a first sub-module; mounting the first light turning element to the first carrier to form a second sub-module; and mounting the first sub-module to the second sub-module to form the first module.
In the assembling method of the periscopic camera module according to the present application, the mounting the first sub-module to the second sub-module to form the first module includes: the drive element is mounted to an upper surface of the first carrier.
In the assembly method of the periscopic camera module according to the present application, assembling the second light turning element and the third light turning element on the second carrier to form the second module includes: mounting the second light turning element in a first positioning mounting groove of the second carrier; and mounting the third light turning element in a second positioning mounting groove of the second carrier.
In the assembling method of the periscopic camera module according to the present application, after the second light turning element and the third light turning element are assembled to the second carrier to form the second module and before the mounting position of the photosensitive chip is determined based on the positional relationship between the first module and the second module, the method further includes: the second module is movably mounted to the outer housing by a second drive element.
In the assembling method of the periscopic camera module according to the present application, after the second light turning element and the third light turning element are assembled to the second carrier to form the second module and before the mounting position of the photosensitive chip is determined based on the positional relationship between the first module and the second module, the method further includes: assembling the second module and the third module to an outer housing.
In the assembling method of periscopic camera module according to this application, install sensitization chip in this mounted position, include: and mounting the photosensitive chip on the outer shell so that the photosensitive chip is mounted at the mounting position.
Further objects and advantages of the present application will become apparent from an understanding of the ensuing description and drawings.
These and other objects, features and advantages of the present application will become more fully apparent from the following detailed description, the accompanying drawings and the claims.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally represent like parts or steps.
Fig. 1 illustrates a schematic view of an optical system of a periscopic camera module according to an embodiment of the present application.
Fig. 2 illustrates a schematic optical path diagram of the periscopic camera module according to the embodiment of the present application.
Fig. 3 is a perspective view illustrating an optical anti-shake portion of the periscopic camera module according to the embodiment of the present application.
Fig. 4 illustrates an exploded view of an optical anti-shake portion of the periscopic camera module according to the embodiment of the present application.
Fig. 5 (fig. 5 includes fig. 5A and 5B) is a schematic perspective view illustrating an autofocus portion in the periscopic image pickup module according to an embodiment of the present application.
Fig. 6 illustrates another perspective view of an autofocus portion in the periscopic camera module according to an embodiment of the present application.
Fig. 7 illustrates a schematic structural diagram of the periscopic camera module according to the embodiment of the present application.
Fig. 8 illustrates a schematic diagram of a multi-camera module according to an embodiment of the present application.
Fig. 9A to 9D are schematic diagrams illustrating an assembly process of the periscopic camera module according to the embodiment of the present application.
Fig. 10 illustrates another schematic diagram of the periscopic camera module according to an embodiment of the present application.
Detailed Description
Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the present application and not all embodiments of the present application, and that the present application is not limited by the example embodiments described herein.
Summary of the application
As described above, although the conventional periscopic imaging module has achieved a certain degree of ability to perform long-range imaging, it still does not satisfy the market demand well. Compared with the conventional linear camera module, the periscopic camera module has the advantages that the design of the periscopic optical system is more complex, the structural design is more complex, the assembly difficulty is higher, the test process is more difficult, the periscopic camera module also needs to meet the anti-shake requirement in some application occasions, and the development of the periscopic camera module is limited by the factors.
Chinese patent CN110398872A discloses a lens module and a camera, wherein an optical system of the lens module (the lens module is a periscopic camera module) includes a first refractive element, a second refractive element, a reflective element and a photosensitive element, wherein the first refractive element and the reflective element are disposed along a direction of a first optical axis, the second refractive element and the reflective element are disposed along a direction of a second optical axis, the first optical axis is an optical axis of the first refractive element, the second optical axis is an optical axis of the second refractive element, the first optical axis is perpendicular to the second optical axis, the second refractive element is parallel to the photosensitive element, an effective aperture of the first refractive element is larger than an effective aperture of the second refractive element in a height direction of the lens module, the first optical axis is parallel to the height direction of the lens module, and the second optical axis is perpendicular to the height direction of the lens module. According to the contents of the background and the summary of the invention, the lens module can more easily capture the effect of a large aperture through the optical system, that is, the aperture can be increased through the design scheme of the optical system adopted by the lens module. However, this optical system design has some problems in the construction of the optical system and in the adjustment of the optical system.
Specifically, in order to increase the aperture, the optical system is configured with refractive elements, i.e., a first refractive element and a second refractive element, above and to the right of the first reflective element, respectively, and this design is difficult to be implemented structurally, mainly for reasons including: in order to ensure that the technical purpose of enlarging the aperture can be achieved, in the process of specifically constructing the optical system, the assembly precision among the first refractive element, the reflective element and the second refractive element is high, however, in the design of the optical system, the first refractive element, the reflective element and the second refractive element are not arranged in a straight line shape but arranged in a right angle shape in space, which requires that the position precision of more dimensions (including the inclination angle of the first refractive element, the reflective element and the second refractive element, the relative position relationship between the first refractive element and the reflective element and the relative position relationship between the second refractive element and the reflective element) needs to be considered when assembling the first refractive element, the reflective element and the second refractive element. Even if the optical system can be constructed with a precision that meets the predetermined requirements through some structural design schemes and high-end assembly processes, the optical system has relatively low stability due to the relatively complex design, for example, if the first refractive element or the second refractive element shakes during use, the performance of the optical system is significantly affected.
Moreover, the design of the optical system is not favorable for the adjustment of the optical system, such as optical anti-shake, automatic focusing, etc., and the reasons mainly include: in this optical system design, the distribution of the optical elements used to adjust the optical performance is relatively diffuse. For example, in an optical anti-shake design scheme, optical anti-shake is performed by adjusting a first refractive element and a second refractive element, and since the first refractive element and the second refractive element are distributed on two sides of a reflective element, anti-shake motors are required to be respectively configured for the first refractive element and the second refractive element to achieve the optical anti-shake effect, and it should be understood that the optical anti-shake design scheme requires two anti-shake motors to be matched with each other, which is difficult.
Chinese patent CN110879454A discloses a camera module, a periscopic camera module, a camera assembly and an electronic device, wherein the camera module includes a fixing member, a lens assembly, an image sensing and focusing assembly, and an image sensor is used for receiving light passing through the lens assembly. In the focusing assembly, a first light steering member is used for steering light rays in the process of being transmitted from the lens assembly to the image sensor; the second light diverting member is used for diverting the light diverted by the first light diverting member and is configured to be movable relative to the fixed member so as to change the distance of the light transmitted from the lens assembly to the image sensor. According to the disclosure, the distance between the first light steering member and the second light steering member is adjusted to adjust the distance between the lens assembly and the image sensor, so that the focusing of the lens assembly is completed, the imaging of the image sensor is realized, and the length of the camera module in the optical axis direction of the lens assembly is shortened.
However, the design of the optical system is poor in some important optical characteristics, especially the aperture size, and the light entering amount of the optical system may be insufficient, which may affect the imaging performance of the camera module. Moreover, this optical system design is also not particularly friendly to the construction of the optical system, mainly because: in the construction of the optical system in which all the optical elements and the adjustment mechanism are mounted in one carrier, i.e. a fixture, it will be appreciated by those skilled in the art that such an assembly method is prone to error accumulation during the assembly process, resulting in poor assembly accuracy of the final molded product.
In the optical system design scheme of the periscopic camera module, not only the optical performance (for example, aperture size, effective focal length size, etc.) that the optical system can realize need to be considered, but also the difficulty of the optical system design scheme in the aspect of optical system construction and the difficulty of the optical system adjustment. Here, it should be understood that the construction of the optical system refers to building up the optical system design by the structural design, and the adjustment of the optical system refers to the need to adjust the positions of some optical elements to achieve the change of the optical performance.
In view of the above technical ideas and the current research and development situations, the basic concept of the present application is to adopt a specific optical system design, so that the optical system can obtain superior overall performance in the aspects of optical performance, difficulty in constructing the optical system, difficulty in adjusting the optical system, and the like.
Based on this, this application has proposed a photosensitive assembly, and it includes: the optical lens is used for receiving imaging light rays from the outside to form a first light beam with a first optical axis; a first light turning element corresponding to the optical lens for turning the first light beam to form a second light beam having a second optical axis perpendicular to the first optical axis; a second light turning element corresponding to the first light turning element for turning the second light beam to form a third light path having a third optical axis perpendicular to a plane set by the first optical axis and the second optical axis; a third light turning element corresponding to the second light turning element for turning the third light beam to form a fourth light beam having a fourth optical axis, the fourth optical axis being perpendicular to the third optical axis; and the photosensitive chip is used for receiving the fourth light beam. In this way, a specific optical system design is adopted, so that the optical system can achieve better overall performance in terms of optical performance, difficulty in constructing the optical system, difficulty in adjusting the optical system, and the like.
Having described the basic principles of the present application, various non-limiting embodiments of the present application will now be described with reference to the accompanying drawings.
Example of Camera Module
According to the periscopic camera module, a specific optical system design is adopted, so that the optical system can obtain better comprehensive performance in the aspects of optical performance, difficulty in building the optical system, difficulty in adjusting the optical system and the like.
Fig. 1 illustrates a schematic view of an optical system of a periscopic camera module according to an embodiment of the present application. As shown in fig. 1, the optical system of the periscopic camera module 80 sequentially includes, along the photosensitive path thereof: the light turning device comprises an optical lens 10, a photosensitive chip 30 and a light turning component 20 arranged between the optical lens 10 and the photosensitive chip 30, wherein the optical lens 10 is used for collecting imaging light rays from the outside to form a first light beam; the light turning component 20 is configured to fold the first light beam and finally transmit the first light beam to the light sensing chip 30. More specifically, in the embodiment of the present application, the optical system design of the periscopic camera module 80 will be described by taking the light bending assembly 20 including the first light bending element 21, the second light bending element 22 and the third light bending element 23 as an example.
As shown in fig. 1, in the embodiment of the present application, the first light turning element 21 corresponds to the optical lens 10, and is configured to turn the first light beam to form a second light beam having a second optical axis; the second light turning element 22 corresponds to the first light turning element 21, and is configured to turn the second light beam to form a third light path having a third optical axis; the third light turning element 23 corresponds to the second light turning element 22, and is configured to turn the third light beam to form a fourth light beam having a fourth optical axis; the light sensing chip 30 corresponds to the third light turning element 23 for receiving light from the fourth light path. In particular, in the embodiment of the present application, the optical lens 10, the first light turning element 21, the second light turning element 22 and the third light turning element 23 are installed and configured in a specific manner so that the optical system can achieve superior overall performance in terms of the achieved optical performance, the ease of construction of the optical system, the ease of adjustment of the optical system, and the like.
Specifically, the optical lens 10 is disposed at the light incident position of the periscopic camera module 80 (or the optical lens 10 forms the light incident position of the periscopic camera module 80), and external light enters the periscopic camera module 80 through the optical lens 10 along an optical axis set by the optical lens 10 to form the first light beam having a first optical axis, where the first optical axis is substantially parallel to or substantially aligned with an axial direction set by the optical lens 10.
The first light turning element 21 corresponds to the optical lens 10, and more specifically, the first light turning element 21 is disposed below the optical lens 10 along an axial direction of the optical lens 10 (or, along a direction of the first optical axis) for turning the first light beam to form a second light beam having a second optical axis, which is substantially perpendicular to the first optical axis. In one possible implementation, the first light turning element 21 has a first light turning surface 210, and the first light turning surface 210 forms an angle of substantially 45 ° with the central axis (or the first optical axis) of the optical lens 10, so that the first light beam turns at the first light turning surface 210 by substantially 90 ° to form the second light beam.
The second light turning element 22 corresponds to the first light turning element 21, and more specifically, in the embodiment of the present application, the second light turning element 22 is disposed at the right side of the first light turning element 21 along the direction of the second optical axis for turning the second light beam to form a third optical path having a third optical axis, which is substantially perpendicular to the plane set by the first optical axis and the second optical axis. In one possible implementation, the second light turning element 22 has a second light turning surface 220, and the second light turning surface 220 forms an angle of substantially 45 ° with the second optical axis, so that the second light beam propagating along the second optical axis turns at the second light turning surface 220 by substantially 90 ° to form the third light beam.
The third light turning element 23 corresponds to the second light turning element 22, and more specifically, in the embodiment of the present application, the third light turning element 23 is disposed below the second light turning element 22 along the third optical axis direction for turning the third light beam to form a fourth light beam having a fourth optical axis, wherein the fourth optical axis is substantially perpendicular to the third optical axis. In one possible implementation, the third light turning element 23 has a third light turning surface 230, and the third light turning surface 230 forms an angle of substantially 45 ° with the third optical axis, wherein the light propagating along the third light path is turned at the turning surface to form the fourth light path, so that the third light beam propagating along the third optical axis is turned at substantially 90 ° at the third light turning surface 230 to form the fourth light beam. As shown in fig. 1, in the embodiment of the present application, the photosensitive surface of the photosensitive chip 30 is substantially perpendicular to the fourth optical axis for receiving the fourth light beam.
With the above-described optical system design, the effective focal length of the periscopic camera module 80 according to the embodiments of the present application may be greater than 10mm, e.g., 15mm,18mm,20mm,25mm, etc., and in some examples, the effective focal length of the periscopic camera module 80 may even be greater than 25mm.
Fig. 2 illustrates a schematic optical path propagation diagram of the periscopic camera module 80 according to the embodiment of the present application. As shown in fig. 2, first, imaging light from the outside passes through the optical lens 10; then, the imaging light from the optical lens 10 is bent at substantially 90 ° at the first light turning element 21; then, the imaging light from the first light turning element 21 is turned at substantially 90 ° again at the second light turning element 22; then, the imaging light from the second light turning element 22 is turned at substantially 90 ° again at the third light turning element 23 to propagate to the photosensitive chip 30.
It should be noted that, in the embodiment of the present application, the optical lens 10 is disposed at the light inlet of the periscopic camera module 80 for directly receiving the imaging light from the outside, and through such a configuration, the periscopic camera module 80 has a larger light inlet amount, which can meet the optical performance requirement of a large aperture. In particular, in the embodiment of the present application, the optical lens 10 includes at least three optical lenses 100, wherein, preferably, the optical lens 100 located at the outermost side (facing the outside) of the at least three optical lenses 100 is a glass lens, and the glass lens has a relatively extremely high refractive index, so that the periscopic camera module 80 has a higher light-entering amount. The material of which the rest of the optical lens 100 is made is not limited in this application, and it may be made of a glass lens or other materials, for example, a plastic material, etc. In consideration of cost, weight, assembly, and the like of the optical lens 10, it is preferable that the remaining optical lens 100 is a plastic lens. Through the configuration, in the embodiment of the present application, the aperture value of the periscopic camera module 80 is smaller than F4.0, and even can reach smaller than F2.0, and the diaphragm diameter of the periscopic camera module 80 is greater than or equal to 5mm.
It should be noted that, since the optical lens 10 is disposed at the light inlet of the periscopic imaging module 80, such a position configuration allows the optical lens 10 to move in the direction of the lens plane set by the optical lens 10 (where the lens plane is perpendicular to the central axis of the optical lens 10), thereby providing a convenient implementation space for optical anti-shake. Specifically, for example, when the periscopic camera module 80 is applied to a smart terminal (e.g., a smart phone) to take a picture, the picture is usually taken in a manner of being held by a user, but one of the inevitable problems of the handheld camera is the shake problem, and the shake of the user can seriously affect the imaging effect of the module. Accordingly, in the embodiment of the present application, a driving element 11 may be configured for the optical lens 10, so as to control the fine adjustment position of the optical lens 10 on the lens plane through the driving element 11, thereby achieving the optical anti-shake effect.
Also, it should be noted that, in the embodiment of the present application, the first light turning element 21 is disposed next to the optical lens 10, i.e., no other optical element is disposed between the first light turning element 21 and the optical lens 10. It should be understood that, during the design of the optical system of the periscopic camera module 80, the first light beam passing through the optical lens 10 can be completely received by the first light turning element 21, so that, in terms of size configuration, the projection of the first light turning surface 210 of the first light turning element 21 in the axial direction of the optical lens 10 can completely cover the lighting surface of the optical lens 10. Such a dimensional configuration provides convenience in the construction of the optical system of the optical lens 10 and the first light turning element 21. Preferably, in the embodiment of the present application, the optical lens 10, the driving element 11 and the first light turning element 21 are configured as an integrated modular structure, wherein when configured as an integrated modular structure, the relative positional relationship between the optical lens 10, the driving element 11 and the first light turning element 21 is close to an ideal state.
Specifically, in one possible implementation manner, in the embodiment of the present application, a first carrier 41 is further provided for the first light turning element 21 and the optical lens 10, so that the optical lens 10, the first light turning element 21 and the driving element 11 are structurally and integrally configured through the first carrier 41. As shown in fig. 3, in the embodiment of the present application, the first carrier 41 has a flat upper surface 411 and a mounting groove 410 concavely formed in the first carrier 41, the first light turning element 21 is mounted in the mounting groove 410, the optical lens 10 is mounted on the driving element 11 and the driving element 11 is mounted on the upper surface 411 of the first carrier 41, so that the optical lens 10, the driving element 11 and the first light turning element 21 are structurally integrated by the first carrier 41, so that the optical lens 10, the driving element 11 and the first light turning element 21 have an integrated modular structure. It will be appreciated that the upper surface 411 of the first carrier 41 is a flat surface and has a relatively large area size, thereby facilitating the mounting of the drive element 11. Preferably, in the embodiment of the present application, the shape and size of the mounting groove 410 are adapted to the shape and size of the first light turning element 21, so that the mounting groove 410 can position and limit the first light turning element 21 to ensure the relative position relationship between the optical lens 10 and the first light turning element 21.
It should be noted that the first light turning element 21 can also be mounted on the first carrier 41 in other ways, which mainly depend on the properties of the first light turning element 21 itself, for example, when the first light turning element 21 is implemented as a turning prism, it is preferable to mount the first light turning element 21 by positioning through the mounting groove 410 as described above. When the first light turning element 21 is implemented as a plane mirror, the first light turning element 21 can be attached to the predetermined position of the first carrier 41 by adhesion, which is not limited in the present application. It should be noted that, in the embodiment of the present application, the first light turning element 21, the second light turning element 22 and the third light turning element 23 may be implemented in other forms, such as an optical waveguide, a grating, etc., besides being implemented as a turning prism and a plane mirror, and this is not limited by the present application.
That is, in the embodiment of the present application, the optical systems of the optical lens 10 and the first light turning element 21 of the periscopic camera module 80 are designed such that the optical systems thereof adopt an integrated modular construction scheme during the construction process. For ease of understanding and explanation, this module part is defined as the optical anti-shake part 50 of the periscopic camera module 80.
It should be noted that, in the embodiment of the present application, in the design scheme of the optical system of the periscopic camera module 80, the first light turning element 21, the second light turning element 22 and the third light turning element 23 have a special configuration, and the third optical axis is substantially perpendicular to the plane defined by the first optical axis and the second optical axis, so that the periscopic camera module 80 has a relatively more compact structure. Compared with the existing periscopic camera module 80, the periscopic camera module 80 of the embodiment of the present application transfers part of the size to the Z-direction size which is relatively more easily accepted and designed, so as to reduce the size in the X or Y direction. Here, in a specific example of the present application, when the periscopic camera module 80 is installed in a smartphone, the Z direction of the periscopic camera module 80 corresponds to the thickness direction of the smartphone, the X direction thereof corresponds to the width direction of the smartphone, and the Y direction thereof corresponds to the length direction of the smartphone.
It should also be noted that, in the embodiment of the present application, the second light turning element 22 and the third light turning element 23 are disposed adjacent to each other, and are used for folding the imaging light, so as to extend the optical path of the periscopic camera module 80, so as to increase the effective focal length of the periscopic camera module 80.
Accordingly, in the embodiment of the present application, it is also possible to move the second light turning element 22 and the third light turning element 23 for auto-focusing, in which a close focus (i.e., close-range shooting) is realized when the second light turning element 22 and the third light turning element 23 are moved away from the first light turning element 21, and an afocal (i.e., far-range shooting) is realized when the second light turning element 22 and the third light turning element 23 are moved close to the first light turning element 21. It should be understood that when the second light turning element 22 and the third light turning element 23 are moved, they change simultaneously with the positions of the optical lens 10 and the photo sensor chip 30, so that it is possible to implement auto-focusing with twice the stroke in a one-time space, thereby improving focusing efficiency.
In the process of moving the second light turning element 22 and the third light turning element 23 to perform focusing, it is preferable that the relative positional relationship between the second light turning element 22 and the third light turning element 23 is maintained constant to ensure stability of focusing. In one possible implementation manner of the present application, during the process of constructing the optical system of the periscopic camera module 80, a second carrier 42 is provided for the second light turning element 22 and the third light turning element 23, wherein the second carrier 42 enables the second light turning element 22 and the third light turning element 23 to have an integrated module structure, so as to ensure that the second light turning element 22 and the third light turning element 23 have a determined positional relationship during the process of being moved, and the second carrier 42 is relatively movably mounted on an outer housing 60 for packaging the first carrier 41, the second carrier 42 and the photosensitive chip 30, so as to achieve automatic zooming, as shown in fig. 5. That is, in the embodiment of the present application, the optical design of the second light turning element 22 and the third light turning element 23 of the periscopic camera module 80 facilitates the adoption of an integrated modular construction scheme in the construction process of the optical system thereof, i.e., the second light turning element 22 and the third light turning element 23 are structurally and integrally configured through the second carrier 42.
Specifically, as shown in fig. 5A, in the embodiment of the present application, the second carrier 42 includes a first positioning mounting groove 421 and a second positioning mounting groove 422 that are spaced apart from each other, wherein the second light turning element 22 is fittingly engaged with the first positioning mounting groove 421, and the third light turning element 23 is fittingly engaged with the second positioning mounting groove 422, in such a way, the second light turning element 22 and the third light turning element 23 are integrally configured in the structure, so as to ensure the consistency of the movement of the second light turning element 22 and the third light turning element 23, and further provide a good focusing effect.
It should be noted that in other examples of the present application, the second light turning element 22 and the third light turning element 23 can also be integrated in the second carrier 42 in other manners, for example, as shown in fig. 5B, in this example, the second carrier 42 has a mounting cavity 420 and a plurality of bonding surfaces are disposed in the mounting cavity 420, so as to attach the second light turning element 22 and the third light turning element 23 in the mounting cavity 420 by bonding, which is not limited by the present application.
Further, in one possible implementation, smooth sliding between the second carrier 42 and the outer housing 60 is achieved by a ball structure, and the ball structure can effectively reduce the driving force required to drive the autofocus portion, as shown in fig. 6. More specifically, as shown in fig. 6, in this possible implementation, the second driving element 43 for driving the autofocus part to move relative to the outer housing 60 includes at least one pair of magnets 431 uniformly and symmetrically disposed at the bottom of the second carrier 42, and a coil 432 provided to the outer housing 60 and corresponding to the magnets 431, so as to implement the autofocus function by interaction of the magnets 431 and the coil 432, and with the aid of balls 433 and a guide 434. For convenience of explanation, in the embodiment of the present application, this block portion is defined as the autofocus portion 70 of the periscopic imaging module 80.
Of course, in other examples of the present application, the second light turning element 22 and the third light turning element 23 may also be configured to be driven independently from each other, that is, the second light turning element 22 and the third light turning element 23 are driven and controlled separately from each other, which is not limited by the present application.
In summary, it should be understood that in the embodiment of the present application, the optical system design scheme adopted by the periscopic camera module 80 is favorable for adopting a modular construction scheme in the construction process, so as to form the structural configuration shown in fig. 7. As shown in fig. 7, in the embodiment of the present application, the periscopic camera module 80 includes: an optical anti-shake part 50, an autofocus part 70 corresponding to the optical anti-shake part 50, a photosensitive chip 30 corresponding to the autofocus part 70, and an outer case 60 for encapsulating the optical anti-shake part 50, the autofocus part 70, and the photosensitive chip 30.
More specifically, in the embodiment of the present application, the optical anti-shake section 50 includes: an optical lens 10 for receiving imaging light from the outside to form a first light beam having a first optical axis; a first light turning element 21 corresponding to the optical lens 10 for turning the first light beam to form a second light beam having a second optical axis, the second optical axis being perpendicular to the first optical axis; a first carrier 41, wherein the first carrier 41 has a mounting groove 410 with an upper surface concavely formed on the first carrier 41, and the first light turning element 21 is mounted in the mounting groove 410; and a driving element 11 for driving the optical lens 10 to perform optical anti-shake, wherein the driving element 11 is mounted on an upper surface of the first carrier 41, and the optical lens 10 is mounted on the driving element 11, so that the optical lens 10, the driving element 11 and the first light turning element 21 have an integrated modular structure.
More specifically, in the embodiment of the present application, the autofocus portion 70 includes: a second light turning element 22 corresponding to the first light turning element 21 for turning the second light beam to form a third light path having a third optical axis perpendicular to a plane set by the first optical axis and the second optical axis; a third light turning element 23 corresponding to the second light turning element 22, for turning the third light beam to form a fourth light beam having a fourth optical axis, the fourth optical axis being perpendicular to the third optical axis; and a second carrier 42, the second carrier 42 including a first positioning mounting groove 421 and a second positioning mounting groove 422 spaced apart from each other, the second light turning element 22 being mounted to the first positioning mounting groove 421, the third light turning element 23 being mounted to the second positioning mounting groove 422, such that the second light turning element 22 and the third light turning element 23 have an integrated modular structure; and a second driving element 43 for driving the second carrier 42 to move.
In summary, the periscopic imaging module 80 according to the embodiment of the present application is clarified, and it is possible to achieve superior overall performance in terms of the obtained optical performance, the difficulty of constructing the optical system, the difficulty of adjusting the optical system, and the like by adopting a specific optical system design. Specifically, the periscopic camera module 80 adopts a design scheme that facilitates modularization in the design of the optical system thereof, so as to facilitate the construction and adjustment of the optical system, that is, in the embodiment of the present application, the periscopic camera module 80 is divided into the optical anti-shake portion 50 and the auto-focusing portion 70 in the configuration of the optical system thereof. Moreover, the optical anti-shake part 50 and/or the autofocus part 70 of the periscopic camera module 80 can be configured as an integrated structure, which is beneficial to reducing the assembly difficulty and improving the assembly precision.
Although, in the above-mentioned embodiment, the light turning component 20 includes the first light turning element 21, the second light turning element 22 and the third light turning element 23 as an example, it should be understood that, in other examples of the present application, the light turning component 20 may further include a greater number of light turning elements, and thus, the present application is not limited thereto.
Further, the periscopic camera module 80 of the embodiment of the present application can realize that the effective focal length reaches 15mm to 25mm through multiple optical path turning designs. Assuming that the equivalent focal length of the periscopic camera module 80 is P, the effective focal length is F, the diagonal length of the camera standard chip is 43.27mm, and the diagonal length of the photosensitive chip 30 is L, P = F43.27/L, i.e., P = F43.27, it is calculated that the effective focal length P =24 × 43.27/5.238 ≈ 198.26mm of the periscopic camera module 80 can be obtained, that is, if the periscopic camera module 80 is further provided with at least one second camera module 90 including a wide-angle lens to form a multi-camera module 100, as shown in fig. 8, for example, the equivalent focal length P2 of the wide-angle lens is 19.5mm, P/P2 ≈ 10, 10 times of optical zoom can be realized, and if the equivalent focal length P2 of the wide-angle lens is 33mm, P/P2 ≈ 6, 6 times of optical zoom can be realized.
In the application of the periscopic camera module 80, for example, the periscopic camera module 80 is assembled on a smartphone, and a wide-angle module with P/P2 being greater than or equal to 6 can be selected to be used in a terminal device, so that the multiple camera modules are more than 6 times of optical zoom, even more than 10 times of optical zoom. Certainly, in other application scenarios, a greater number of upper and lower modules may be provided, and assuming that P is the equivalent focal length of the periscopic image capturing module 80, P2 is the equivalent focal length of the wide-angle module, P3 is the equivalent focal length of the intermediate-focus module, P/P2 is approximately equal to 10, and P3/P2 is approximately equal to 5, smooth optical zooming of more than 5 times is achieved, which is not limited by the present application.
Exemplary method of Assembly
In the embodiment of the present application, the periscopic camera module 80 is assembled in a modular manner, so as to facilitate the improvement of the assembly efficiency and the improvement of the assembly matching precision.
Fig. 9A to 9D are schematic diagrams illustrating an assembly process of the periscopic camera module 80 according to the embodiment of the present application.
As shown in fig. 9A to 9D, the assembly process of the periscopic camera module 80 according to the embodiment of the present application includes: first, the optical lens 10, the driving element 11 and the first light turning element 21 are assembled on the first carrier 41 to form a first module; then, assembling the second light turning element 22 and the third light turning element 23 on the second carrier 42 to form a second module; next, determining the mounting position of the photosensitive chip 30 based on the positional relationship between the first module and the second module; then, the photosensitive chip 30 is mounted at the mounting position.
Specifically, the process of mounting the optical lens 10, the driving element 11 and the first light turning element 21 on the first carrier 41 to form the first module includes:
firstly, mounting the optical lens 10 on the driving element 11 to form a first sub-module;
then, mounting the first light turning element 21 to the first carrier 41 to form a second sub-module;
the first sub-module is then mounted to the second sub-module to form the first module.
In the embodiment of the present application, the driving element 11 is an anti-shake motor, which includes, but is not limited to, VCM motors, SMA motors, MEMS, piezoelectric actuators, and other driving devices.
Specifically, in the embodiment of the present application, the process of assembling the second light turning element 22 and the third light turning element 23 on the second carrier 42 to form the second module includes:
mounting the second light turning element 22 in the first positioning mounting groove 421 of the second carrier 42;
the third light turning element 23 is mounted to the second positioning mounting groove 422 of the second carrier 42.
In particular, in the embodiment of the present application, the bottom of the second carrier 42 further has a hollow structure for receiving and disposing one or more combinations of a ball structure, a circuit board, and a magnet. The second carrier 42 is movably mounted on the outer casing 60 of the periscopic camera module 80, and the second carrier 42 can control the second light turning element 22 and the third light turning element 23 to move simultaneously.
It should be noted that, after the second light turning element 22 and the third light turning element 23 are assembled on the second carrier 42 to form the second module and before the mounting position of the photosensitive chip 30 is determined based on the position relationship between the first module and the second module, the first module and the second module may be assembled, for example, the second module and the third module are assembled on the outer housing 60, so that the second module and the third module have an integrated modular structure.
Further, in the embodiment of the present application, the mounting position of the photosensitive chip 30 may be determined by means of "dummy chip" power-on imaging, and then the photosensitive chip 30 is mounted on the mounting position by means of such as AA, HA, AOA, mechanical positioning, and the like.
Of course, in the embodiment of the present application, before determining the installation position of the photosensitive chip 30 based on the position relationship between the first module and the second module, the position of the first module and the position of the second module may not be fixed, but the first module is fixed, and the second module and the photosensitive chip 30 are adjustably clamped at the same time, so that after the second module and the photosensitive chip 30 are adjusted to achieve the ideal imaging effect, the photosensitive chip 30, the first module and the second module are directly fixed to the outer shell 60, so as to form the periscopic camera module 80.
It should be noted that in other examples of the present application, the optical elements in the periscopic camera module 80 may be integrated in other modules, that is, other assembling methods are adopted, for example, the optical lens 10, the driving element 11, the first light turning element 21, and the second light turning element 22 may be assembled on the same carrier to form a first module; then, the mounting position of the photosensitive chip 30 is determined based on the positional relationship between the first block and the third light turning element 23; finally, the photosensitive chip 30 is mounted at the mounting position, and the corresponding product is as shown in fig. 10. Or, the first light turning element 21, the second light turning element 22, and the third light turning element 23 are assembled on the same carrier to form a first module; then, the mounting position of the photosensitive chip 30 is determined based on the positional relationship between the first module and the optical lens 10; finally, the photosensitive chip 30 is mounted at the mounting position. And are not intended to limit the scope of the present application.
It can be understood that this kind of sectional type modularization packaging technology that this application adopted carries out the position through big fixed component with scattered part earlier and prescribes a limit to promptly, then reduces the equipment error accumulation that equipment between the little scattered component caused through the equipment between the big fixed component, can effectively reduce the equipment error of module, improves the equipment precision, reduces the equipment degree of difficulty.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims (36)

  1. The utility model provides a periscopic module of making a video recording which characterized in that includes:
    the optical lens is used for receiving imaging light rays from the outside to form a first light beam with a first optical axis;
    a first light turning element corresponding to the optical lens for turning the first light beam to form a second light beam having a second optical axis perpendicular to the first optical axis;
    a second light turning element corresponding to the first light turning element for turning the second light beam to form a third light path having a third optical axis perpendicular to a plane set by the first optical axis and the second optical axis;
    a third light turning element corresponding to the second light turning element for turning the third light beam to form a fourth light beam having a fourth optical axis, the fourth optical axis being perpendicular to the third optical axis; and
    and the photosensitive chip is used for receiving the fourth light beam.
  2. The periscopic camera module of claim 1, wherein the optical lens and the first light turning element have an integral modular structure.
  3. The periscopic camera module of claim 2, further comprising a first carrier having an upper surface and a mounting slot concavely formed in the first carrier, the first light turning element being mounted in the mounting slot, the optical lens being mounted on the upper surface.
  4. The periscopic camera module of claim 1, further comprising a driving element for driving the optical lens for optical anti-shake.
  5. The periscopic camera module of claim 3, further comprising a driving element for driving the optical lens to perform optical anti-shake, wherein the optical lens is mounted to the driving element, and the driving element is mounted to an upper surface of the first carrier.
  6. The periscopic camera module of claim 1, wherein the second and third light turning elements have an integral modular structure.
  7. The periscopic camera module of claim 6, further comprising a second carrier, wherein the second and third light-turning elements are mounted to the second carrier.
  8. The periscopic camera module of claim 7, wherein the second light turning element and the third light turning element have a gap therebetween.
  9. The periscopic camera module of claim 8, wherein the second carrier includes a first alignment mounting slot and a second alignment mounting slot spaced apart from each other, the second light turning element is mounted to the first alignment mounting slot, and the third light turning element is mounted to the second alignment mounting slot.
  10. The periscopic camera module of claim 7, further comprising a second drive element for driving the second carrier to move.
  11. The periscopic camera module of claim 10, wherein the second drive element is configured to drive the second carrier to move along a direction of the second optical path or the fourth optical path.
  12. The periscopic camera module of claim 1, wherein the optical lens comprises at least three optical lenses, wherein the at least three optical lenses comprise at least one glass lens.
  13. The periscopic camera module of claim 12, wherein said outermost optical lens facing the environment is a glass lens.
  14. The periscopic camera module of any of claims 1-13, wherein an effective focal length of the periscopic camera module ranges over greater than 10mm.
  15. A periscopic camera module according to claim 14 and having an effective focal length in the range of 15mm to 25mm.
  16. The periscopic camera module defined in any one of claims 1-13 wherein the aperture of the periscopic camera module is less than F4.0.
  17. The periscopic camera module of claim 16, wherein the aperture of the periscopic camera module is less than F2.0.
  18. The periscopic camera module of claim 16, wherein a stop diameter of the periscopic camera module is greater than or equal to 5mm.
  19. The periscopic camera module defined in any one of claims 1-13 further comprising an outer housing for enclosing said first carrier, said second carrier and said photo-sensing chip.
  20. The utility model provides a periscopic module of making a video recording which characterized in that includes:
    an optical anti-shake portion;
    an auto-focusing part corresponding to the optical anti-shake part; and
    a photosensitive chip corresponding to the auto-focusing part.
  21. The periscopic camera module of claim 20, wherein the optical anti-shake portion comprises:
    the optical lens is used for receiving imaging light rays from the outside to form a first light beam with a first optical axis;
    a first light turning element corresponding to the optical lens for turning the first light beam to form a second light beam having a second optical axis perpendicular to the first optical axis;
    a first carrier having a mounting groove with an upper surface concavely formed on the first carrier, the first light turning element being mounted in the mounting groove; and
    and the driving element is used for driving the optical lens to perform optical anti-shake, wherein the driving element is mounted on the upper surface of the first carrier, and the optical lens is mounted on the driving element, so that the optical lens, the driving element and the first light turning element have an integrated modular structure.
  22. The periscopic camera module of claim 21, wherein the autofocus portion comprises:
    a second light turning element corresponding to the first light turning element for turning the second light beam to form a third light path having a third optical axis perpendicular to a plane set by the first and second optical axes;
    a third light turning element corresponding to the second light turning element for turning the third light beam to form a fourth light beam having a fourth optical axis, the fourth optical axis being perpendicular to the third optical axis; and
    a second carrier including a first positioning mounting groove and a second positioning mounting groove spaced apart from each other, the second light turning element being mounted in the first positioning mounting groove, and the third light turning element being mounted in the second positioning mounting groove, such that the second light turning element and the third light turning element have an integrated modular structure; and
    a second drive element for driving the second carrier to move.
  23. The periscopic camera module of claim 22, further comprising an outer housing enclosing the optical anti-shake portion, the autofocus portion, and the photo-sensing chip, wherein the second carrier is movably mounted to the outer housing by the second drive element.
  24. A periscopic camera module according to any one of claims 20-23 and having an effective focal length in the range greater than 10mm.
  25. A periscopic camera module according to any one of claims 20-23 and wherein said periscopic camera module has an aperture value of less than F4.0.
  26. A periscopic camera module according to any one of claims 20-23 and having a diaphragm diameter greater than or equal to 5mm.
  27. The utility model provides a module of making a video recording more which characterized in that includes:
    a periscopic camera module according to any one of claims 1-25; and
    and the ratio of the equivalent focal length of the periscopic camera module to the equivalent focal length of the second camera module is greater than or equal to 6.
  28. The multi-camera module of claim 27, wherein a ratio of an equivalent focal length of the periscopic camera module to an equivalent focal length of the second camera module is greater than or equal to 10.
  29. A periscopic camera module assembly method is characterized by comprising the following steps:
    assembling an optical lens, a driving element and a first light turning element on a first carrier to form a first module;
    assembling the second light turning element and the third light turning element on a second carrier to form a second module;
    determining the installation position of the photosensitive chip based on the position relation between the first module and the second module; and
    and mounting the photosensitive chip at the mounting position.
  30. The method of assembling a periscopic camera module according to claim 29, wherein the mounting of the optical lens, the driving element and the first optical turning element on the first carrier to form the first module comprises:
    mounting the optical lens to the driving element to form a first sub-module;
    mounting the first light turning element to the first carrier to form a second sub-module; and
    mounting the first sub-module to the second sub-module to form the first module.
  31. The method of assembling a periscopic camera module set forth in claim 30, wherein mounting the first sub-module to the second sub-module to form the first module comprises:
    the driving element is mounted on the upper surface of the first carrier.
  32. The assembly method of the periscopic camera module of claim 29, wherein assembling the second light turning element and the third light turning element to the second carrier to form the second module comprises:
    mounting the second light turning element in a first positioning mounting groove of the second carrier; and
    and installing the third light turning element in a second positioning installation groove of the second carrier.
  33. The assembly method of the periscopic camera module of claim 32, further comprising, after assembling the second light turning element and the third light turning element to the second carrier to form the second module and before determining the mounting position of the photosensitive chip based on the positional relationship between the first module and the second module:
    the second module is movably mounted to the outer housing by a second drive element.
  34. The assembly method of a periscopic camera module according to claim 33, wherein after assembling the second light turning element and the third light turning element to the second carrier to form the second module and before determining the mounting position of the photosensitive chip based on the positional relationship between the first module and the second module, further comprising:
    assembling the second module and the third module to an outer housing.
  35. The assembly method of the periscopic camera module of claim 34, wherein the mounting of the photosensitive chip to the mounting location comprises:
    and mounting the photosensitive chip on the outer shell so that the photosensitive chip is mounted at the mounting position.
  36. A periscopic camera module assembly method is characterized by comprising the following steps:
    assembling the optical lens, the driving element, the first light turning element and the second light turning element on a first carrier to form a first module;
    determining a mounting position of a photosensitive chip based on a positional relationship between the first module and the third light turning element; and
    and mounting the photosensitive chip at the mounting position.
CN202180030717.9A 2020-04-24 2021-04-13 Periscopic camera module, multi-camera module and camera module assembling method Pending CN115428429A (en)

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