WO2021138757A1 - Optical lens, image capturing device, and electronic device - Google Patents

Optical lens, image capturing device, and electronic device Download PDF

Info

Publication number
WO2021138757A1
WO2021138757A1 PCT/CN2020/070417 CN2020070417W WO2021138757A1 WO 2021138757 A1 WO2021138757 A1 WO 2021138757A1 CN 2020070417 W CN2020070417 W CN 2020070417W WO 2021138757 A1 WO2021138757 A1 WO 2021138757A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
optical
module
frame
driving mechanism
Prior art date
Application number
PCT/CN2020/070417
Other languages
French (fr)
Chinese (zh)
Inventor
简坤胜
Original Assignee
南昌欧菲光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南昌欧菲光电技术有限公司 filed Critical 南昌欧菲光电技术有限公司
Priority to PCT/CN2020/070417 priority Critical patent/WO2021138757A1/en
Publication of WO2021138757A1 publication Critical patent/WO2021138757A1/en

Links

Images

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • 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

Definitions

  • the present invention relates to the field of imaging technology, in particular to an optical lens, an imaging device and an electronic device.
  • the driving motor includes a piezoelectric material motor (Piezo), a voice coil motor (Voice Coil Motor, VCM), or a stepping motor.
  • an optical lens is provided.
  • An optical lens including:
  • each of the optical modules includes a module frame and a lens module set in the module frame;
  • At least one of the optical modules is provided with a first driving mechanism in the module frame, and the first driving mechanism is connected with the lens module in the module frame to drive the lens module to move to achieve zooming of the optical lens. Or focus; and,
  • a second driving mechanism is provided in the module frame of at least another optical module, and the second driving mechanism is connected with the lens module in the module frame to drive the lens module to move to correct the shaking of the optical lens.
  • An image capturing device comprising the optical lens described in the above embodiment; and a photosensitive element, the photosensitive element being arranged on the image side of the optical lens.
  • An electronic device includes a housing and the imaging device described in the above embodiments, and the imaging device is installed on the housing.
  • FIG. 1 is a schematic diagram of the structure of an optical lens according to an embodiment of the application.
  • FIG. 2 is an exploded schematic diagram of two adjacent optical modules in the embodiment shown in FIG. 1;
  • FIG. 3 is a schematic structural diagram of an optical lens according to another embodiment of the application when two optical modules 10 are adjacent to each other;
  • FIG. 4 is a schematic structural diagram of an optical lens according to another embodiment of the application when two optical modules 10 are adjacent to each other;
  • FIG. 5 is a schematic structural diagram of an optical lens according to another embodiment of the application.
  • FIG. 6 is a schematic diagram of the structure of an image capturing device according to an embodiment of the application.
  • FIG. 7 is a schematic structural diagram of an electronic device according to an embodiment of the application.
  • the traditional zoom lens has a complicated lens composition, usually having two or more lens groups, and the optical axis of each lens needs to be aligned one by one through an active alignment device, and then packaged with a driving motor in a unified manner.
  • an assembly method is difficult to control the assembly accuracy between different lens groups, resulting in high assembly difficulty and low yield rate.
  • packaging the lens group directly inside the lens barrel will also make it difficult to disassemble and replace the lens group, which is not conducive to the later adjustment and maintenance of the lens group.
  • the traditional zoom lens usually has a wide shooting focal length, so the lens group needs to have a larger working stroke.
  • the assembly method it will be difficult to control the tilt and eccentricity of the lens group during the zoom and focus process, especially when the zoom lens has multiple lens groups, the assembly is increased. The degree of difficulty.
  • the embodiment of the present application provides an optical lens capable of modular assembly of multiple lens groups, including at least two optical modules.
  • the specific number of optical modules can be designed according to actual needs, for example, the two optical modules 10 and 20 shown in the embodiment of FIG. 1, of course, in other embodiments, it can also be three, four, or five, etc. , This application does not restrict this.
  • the at least two optical modules are arranged in sequence along the optical axis, and each optical module includes a module frame and a lens module set in the module frame.
  • the module frame of at least one optical module is provided with a first driving mechanism, and the first driving mechanism is connected with the lens module in the module frame to drive the lens module to move to achieve zooming or focusing of the optical lens; and at least another A second driving mechanism is arranged in the module frame of an optical module, and the second driving mechanism is connected with the lens module in the module frame to drive the lens module to move to correct the shaking of the optical lens.
  • the dashed line in the figure represents the optical axis, and an XYZ coordinate axis is established, where the Z axis coincides with the optical axis.
  • the optical module 10 and the optical module 20 are arranged in sequence along the optical axis direction (ie, the Z-axis direction), and define that the side close to the optical module 10 along the optical axis direction is the object side of the optical lens 100, and the side close to the optical module 20 is The image side of the optical lens 100.
  • the optical module 10 includes a module frame 11 in which a first driving mechanism 12A and a lens module 13 connected to the first driving mechanism 12A are provided.
  • the first driving mechanism 12A can drive the lens module 13 to move along the optical axis ( The direction of the arrow in the optical module 10 is shown in the figure) to achieve zooming or focusing of the optical lens 100;
  • the optical module 20 includes a module frame 21 in which a second drive mechanism 22A is provided and is connected to the second drive mechanism 22A
  • the second driving mechanism 22A can drive the lens module 23 to move along the X axis to correct the shake of the optical lens 100.
  • the optical lens 100 shown in FIG. 1 is only used as an example. According to actual imaging requirements, the moving directions of the lens module 13 and the lens module 23 may also be different from the moving directions of the embodiment in FIG. 1.
  • each lens module includes a group of lens groups, and each group of lens groups can be matched with an independent driving mechanism, so that each optical module can be independently produced and debugged.
  • the lens module 13 is provided with a lens group 132
  • the lens module 23 is provided with a lens group 232
  • the lens group 132 is correspondingly provided with a first driving mechanism 12A
  • the lens group 232 is correspondingly provided with a second lens group.
  • Drive mechanism 22A is provided.
  • the above-mentioned optical lens has at least two split optical modules, and each optical module is packaged with a lens module and a corresponding drive mechanism, which facilitates the realization of the zoom, focus and anti-shake functions of the optical lens; in the process of preparing the optical lens
  • the optical axis calibration and assembly of each optical module can complete the assembly of the lens, which can effectively improve the assembly accuracy of each lens module and improve the assembly yield of the optical lens; in addition, the modular setting of the lens group is also convenient
  • the disassembly and replacement of the lens group is conducive to the later adjustment and maintenance of each lens group.
  • the module frames of each optical module are sequentially butted along the optical axis direction, and the butting surfaces of the module frames of two adjacent optical modules are stepped and have complementary shapes.
  • the module frame 11 of the optical module 10 is provided with a mating surface 110.
  • the module frame 21 of the optical module 20 is provided with a mating surface 210, and the mating surface 110 and the mating surface 210 are both stepped. Shape and complementary shape.
  • the stepped shape at the surface meets the travel requirements of the lens module 13, so as to ensure the imaging effect of the optical lens 100; in addition, it is also beneficial for two adjacent optical modules 10 and 20 to form each other through the cooperation of their mating surfaces.
  • the position limit is further ensured that the optical axes of the lens module 13 and the lens module 23 coincide, and the assembly accuracy and assembly yield of the optical lens 100 are improved.
  • the shape of the docking structure may be not only a stepped shape, but also an uneven tooth shape or a "bow" shape, etc., which is not limited in the present application.
  • first driving mechanism and/or the second driving mechanism in the module frame of two adjacent optical modules are located on both sides of the optical axis in a direction perpendicular to the optical axis.
  • the driving mechanisms in two adjacent optical modules may be a first driving mechanism 12A and a second driving mechanism 22A, respectively, and the first driving mechanism 12A and the second driving mechanism 22A It is located on both sides of the optical axis in the direction perpendicular to the optical axis; and in other embodiments, the optical lens 100' shown in FIG. 3 and the optical lens 100" shown in FIG.
  • the driving mechanisms of may be both first driving mechanisms 12B and 12C, wherein the two first driving mechanisms 12B are located on both sides of the optical axis in a direction perpendicular to the optical axis (as shown in FIG. 3), and the two first driving mechanisms 12C is located on both sides of the optical axis in the direction perpendicular to the optical axis (as shown in Figure 4); of course, in some other embodiments, the driving mechanisms in two adjacent optical modules may also be second driving mechanisms (Not shown in the figure), the two second driving mechanisms are also located on both sides of the optical axis in the direction perpendicular to the optical axis.
  • This arrangement can make full use of the internal space of the module frame to facilitate the accommodating and moving of the lens module, especially When driving the lens module to move along the optical axis, avoiding that the driving mechanisms of two adjacent optical modules are located on the same side of the optical axis in a direction perpendicular to the optical axis, the thickness of the optical lens can be further reduced, and the miniaturization of the lens can be achieved.
  • the module frame of each optical module is also provided with a guide shaft connected to the lens module, and the guide shaft traverses the module frame.
  • the guide shaft 15 is connected to the lens module 13 and traverses the module frame 11 in a direction parallel to the optical axis, so that the lens module 13 can be stabilized during the movement of the lens module 13 Moving along the optical axis, the guide shaft can also form a stable support for the lens mold 13 group to prevent tilt and eccentricity of the lens module 13 during movement, thereby ensuring the imaging quality of the optical lens 100'.
  • the number of guide shafts 15 can also be set to two (as shown in FIG. 4) or more, which is not limited in this application. .
  • the embodiment of the present application can greatly shorten the length of the guide shaft matched with each lens group through multiple independent optical modules, which is also beneficial to control the tilt and eccentricity of the lens group when moving.
  • each optical module further includes a position sensing device, and the position sensing device is provided between the module frame and the lens module for sensing the position of the lens module.
  • a position sensing device 14 is provided on the inner wall of the module frame 11 of the optical module 10. The position sensing device 14 can feed back the movement position information of the lens module 13 to the control of the first driving mechanism 12A in real time. The chip thus realizes the closed-loop control of the moving distance of the lens module 13, which is conducive to the rapid zooming, focusing and anti-shake of the optical lens 100, and improves the user's shooting experience.
  • the optical module 20 is provided with a position sensing device 24, and the arrangement form of the position sensing device 24 is the same as that of the position sensing device 14, so it will not be repeated. It is understandable that the position sensing device 14 may not be provided on the module frame 11 as long as it is a position within the optical module 10 that can sense the lens module 13. In other embodiments, a position sensing device 14 is also provided in the optical module 10 as shown in FIGS. 3 and 4. According to the type of the driving motor, the position of the position sensing device 14 on the inner wall of the module frame 11 can be appropriately adjusted to adapt to different motor structures.
  • the position sensing device is selected from at least one of an optical sensor and a Hall sensor.
  • the position sensing device 14 when the position sensing device 14 uses an optical sensor for position sensing, it can perform non-contact measurement of the moving position of the lens module 13, and the optical sensor has less interference factors, so that the lens can be accurately measured.
  • the moving position of the module 13 is fed back to the driving mechanism 12A; when the position sensing device 14 uses a Hall sensor for position sensing, the Hall sensor has a strong ability to resist external magnetic field interference, and the measurement accuracy of the moving position of the lens module 13 is high and The linearity is good, so that the movement of the lens module 13 can be better controlled.
  • the first driving mechanism is a piezoelectric motor, a voice coil motor, a stepping motor, a ball motor or a shape memory alloy motor
  • the second driving mechanism is a piezoelectric motor, a voice coil motor, a stepping motor, a ball Type motor or shape memory alloy motor.
  • the specific connection structure of the driving mechanism and the lens module when the driving mechanism is a piezoelectric motor, a voice coil motor, and a shape memory alloy motor will be respectively described below.
  • both the first driving mechanism 12A and the second driving mechanism 22A are configured as piezoelectric motors.
  • the first driving mechanism 12A includes a piezoelectric actuating unit 121A and a driving shaft 122A extending along the optical axis direction (ie, the Z-axis direction).
  • the piezoelectric actuating unit 121A is provided in the module frame 11, and the driving shaft 122A is connected to the lens module 13 And one end of the drive shaft 122A is connected to the piezoelectric actuation unit 121A, and the module frame 11 is provided with a hole (not shown in the figure) for the drive shaft 122A to pass through.
  • the piezoelectric actuation unit 121A is made of piezoelectric material (for example, piezoelectric ceramics). Therefore, after a certain waveform voltage is applied to the piezoelectric actuation unit 121A during zooming, focusing or anti-shake period, the piezoelectric actuation unit 121A 121A will deform due to the inverse piezoelectric effect, and then drive the drive shaft 122A to move, and the drive shaft 122A is connected to the lens module 13 so as to drive the lens module 13 to move.
  • the drive shaft 122A can be fixedly connected to the lens module 13 through an elastic sheet.
  • the second driving mechanism 22A includes a piezoelectric actuating unit 221A and a driving shaft 222A extending along the X-axis direction.
  • the piezoelectric actuating unit 221A is provided in the module frame 21.
  • the driving shaft 222A is connected to the lens module 23 and one end of the driving shaft 222A Connected to the piezoelectric actuating unit 221A, the module frame 21 is provided with a hole 230 for the drive shaft 222A to pass through.
  • a guide shaft (not shown in the figure) may also be provided in the optical module 10 shown in FIG. 1.
  • the guide shaft traverses the module frame 11 and is arranged parallel to the drive shaft 122A, and the side of the lens module 13 away from the drive shaft 122A is connected to the guide shaft, so that during the movement of the lens module 13 , The lens module 13 can be moved stably along the optical axis, and the guide shaft can also form a stable support for the lens module 13 group, preventing the lens module 13 from tilting and decentering during the moving process, thereby ensuring The imaging quality of the optical lens 100.
  • Piezoelectric actuating units made of piezoelectric materials usually have the advantages of small size, large thrust, fast speed, and high accuracy, so they are beneficial to reduce the space occupied by the optical modules 10 and 20, thereby ensuring the miniaturization of the optical lens 100 ; At the same time, the lens modules 13 and 23 can also have sufficient working strokes to meet the shooting requirements of the corresponding focal lengths, and achieve fast and accurate focusing of the optical lens 100.
  • the first driving mechanism 12B and the second driving mechanism are both configured as voice coil motors.
  • the first driving mechanism 12B includes a coil 121B and a magnet 122B for applying a magnetic field to the coil 121B.
  • the coil 121B is provided on the lens module 13, and the magnet 122B is provided on the inner wall of the module frame 11.
  • a guide shaft 15 is provided on the side of the group 13 away from the magnet 122B.
  • the coil 121B can drive the lens module 13 under the action of electromagnetic force. Move along the guide shaft 15.
  • the first driving mechanism 12C and the second driving mechanism are both configured as shape memory alloy motors.
  • the first driving mechanism 12C is made of a memory alloy material, which may be a spiral-shaped memory metal.
  • One end of the spiral memory metal is connected to the inner wall of the module frame 11, and the other end is connected to the lens module 13.
  • two guiding shafts 15 are provided on both sides of the lens module 13, and the spiral memory metal is arranged in two and sleeved on the guiding shafts 15 on both sides of the lens module 13 respectively.
  • the memory metal will deform and drive the lens module 13 to move along the guide shaft 15.
  • the lens module includes a lens frame, the lens group is installed in the lens frame, and the lens group includes at least one lens.
  • the lens module 13 includes a lens frame 131, a lens group 132 is installed in the second frame 131, and the lens group 132 includes at least one lens.
  • the lens may be various types of lenses, such as a biconvex lens, a plano-convex lens, a meniscus lens, a biconcave lens, a plano-concave lens, a convex-concave lens, and the like.
  • the optical lens further includes a light turning element, and the light turning element is used to turn the light incident into the optical lens and project it to each optical module.
  • the optical lens 200 includes a light turning element 30 and the optical module 10 and the optical module 20 of the embodiment shown in FIG. 1.
  • the light turning element 30 may be a triangular prism, so that the light incident perpendicular to the optical axis direction can be projected to the arranged optical modules after being turned by the light turning element 30.
  • the light turning element 30 can be combined with the optical module 10 and the optical module 20 to form a periscope lens, which increases the degree of freedom in the arrangement of the optical modules, and facilitates the adaptation of the optical lens 200 to the mobile phone.
  • Tablet and other portable electronic devices with limited size to achieve the purpose of reducing the thickness of the device body.
  • a focusing lens 40 is also provided between the light turning element 30 and the optical module 10, and the focusing lens 40 is used to converge the light after the turning to enter the optical modules to ensure the complete shooting of the scene. .
  • a shake compensation unit may be further provided, and the shake compensation unit is configured to drive the light turning element 30 or the focusing lens 40 to translate or rotate relative to each optical module, thereby realizing the anti-shake of the optical lens 200 .
  • the optical lens further includes a lens frame for accommodating each optical module, and the lens frame and the module frame of each optical module are bonded by glue. 5, the outer walls of the module frame 11 and the module frame 21 of the optical lens 200 are coated with glue 60, and the module frame 11 and the module frame 21 are bonded to the inner wall of the lens frame 50 through the glue 60, thereby connecting the optical lens Both the module 10 and the optical module 20 are accommodated in the lens frame 50.
  • the zoom module formed by each optical module can be combined with other optical modules as a whole, and at the same time, the relative displacement of each optical module during zooming or focusing can be prevented, and the imaging quality can be guaranteed; in addition, It can also form impact protection for each optical module.
  • the present application also provides an imaging device 300, including the optical lens 200 and a photosensitive element 70 as described above.
  • the photosensitive element 70 is arranged on the image side of the optical lens 100 to receive the carrying device formed by the lens 100.
  • the light of image information may adopt a complementary metal oxide semiconductor (CMOS, Complementary Metal Oxide Semiconductor) image sensor or a charge-coupled device (CCD, Charge-coupled Device) image sensor.
  • CMOS complementary metal oxide semiconductor
  • CCD Charge-coupled Device
  • the above-mentioned imaging device 300 using the optical lens 200 as described above, can improve the assembly yield of the imaging device, reduce the module thickness of the imaging device, and can also quickly realize the adjustment of zoom, focus and anti-shake, and improve imaging. quality.
  • the present application also provides an electronic device 400, which includes a housing 401 and the image capturing device 300 as described above.
  • the image capturing device 300 is installed on the housing 401 to capture images.
  • the imaging device 300 is disposed in the housing 401 and exposed from the housing 401 to acquire images.
  • the housing 401 can provide the imaging device 300 with protection from dust, water, and drop.
  • the corresponding hole of the imaging device 300 allows light to penetrate into or out of the housing 401 from the hole.
  • the above-mentioned electronic device can use the image capturing device 300 as described above to capture images of different distances and nears, and at the same time, the image quality is also improved to meet people's professional shooting needs.
  • the electronic devices in the implementation of this application include, but are not limited to, mobile phones, car lenses, personal tablets, personal digital assistants, game consoles, personal computers, cameras, smart watches and other information terminal equipment or home appliances with camera functions. Products, etc.

Abstract

An optical lens (100), an image capturing device (300), and an electronic device (400). The optical lens (100) comprises at least two optical modules (10, 20) which are sequentially arranged in the optical axis direction, and each optical module (10, 20) comprises a module frame (11, 21) and a lens module (13, 23) arranged in the module frame (11, 21). A first driving mechanism (12A) is provided in the module frame (11) of at least one optical module (10), and the first driving mechanism (12A) is connected to the lens module (13) in the module frame (11) so as to drive the lens module (13) to move to realize zooming or focusing of the optical lens (100); moreover, a second driving mechanism (22A) is provided in the module frame (21) of at least another optical module (20), and the second driving mechanism (22A) is connected to the lens module (23) in the module frame (21) so as to drive the lens module (23) to move to correct the jitter of the optical lens (100). The optical lens (100) is provided with a plurality of split optical modules (10, 20), so that the assembly precision of the lens modules (13, 23) can be effectively improved, and the assembly yield of the optical lens (100) is improved.

Description

光学镜头、取像装置及电子装置Optical lens, imaging device and electronic device 技术领域Technical field
本发明涉及摄像技术领域,特别是涉及一种光学镜头、取像装置及电子装置。The present invention relates to the field of imaging technology, in particular to an optical lens, an imaging device and an electronic device.
背景技术Background technique
随着光学技术的发展,出现了各种各样的光学变焦镜头。传统的光学变焦镜头通常利用驱动马达驱动镜片组移动来实现镜头的变焦、对焦以及防抖。驱动马达包括压电材料马达(Piezo)、音圈马达(Voice Coil Motor,VCM)或步进马达等。With the development of optical technology, various optical zoom lenses have appeared. Traditional optical zoom lenses usually use a drive motor to drive the lens group to move to achieve lens zoom, focus, and anti-shake. The driving motor includes a piezoelectric material motor (Piezo), a voice coil motor (Voice Coil Motor, VCM), or a stepping motor.
然而,发明人发现,传统的光学变焦镜头在组装过程中,需要对镜片组中的镜片统一进行光轴校准后再和驱动马达进行封装,因此不易控制镜片组之间的组装精度,加大了组装难度,导致镜头的组装良率较低;除此之外,将镜片组直接封装在镜筒内部也不利于镜片组的调整和维护。However, the inventor found that in the assembly process of the traditional optical zoom lens, the lenses in the lens group need to be uniformly calibrated for the optical axis and then packaged with the drive motor. Therefore, it is not easy to control the assembly accuracy between the lens groups, which increases The difficulty of assembly results in a lower assembly yield of the lens; in addition, directly encapsulating the lens group inside the lens barrel is not conducive to the adjustment and maintenance of the lens group.
发明内容Summary of the invention
根据本申请的各种实施例,提供一种光学镜头。According to various embodiments of the present application, an optical lens is provided.
一种光学镜头,包括:An optical lens including:
沿光轴方向依次排布的至少两个光学模块,每个所述光学模块均包括模块框架和设于所述模块框架内的透镜模组;At least two optical modules arranged in sequence along the optical axis, each of the optical modules includes a module frame and a lens module set in the module frame;
其中,至少一个所述光学模块的模块框架内设置有第一驱动机构,所述第一驱动机构与该模块框架内的透镜模组连接从而驱动该透镜模组移动以实现所述光学镜头的变焦或对焦;且,Wherein, at least one of the optical modules is provided with a first driving mechanism in the module frame, and the first driving mechanism is connected with the lens module in the module frame to drive the lens module to move to achieve zooming of the optical lens. Or focus; and,
至少另一所述光学模块的模块框架内设置有第二驱动机构,所述第二驱动机构与该模块框架内的透镜模组连接从而驱动该透镜模组移动以校正所述光学镜头的抖动。A second driving mechanism is provided in the module frame of at least another optical module, and the second driving mechanism is connected with the lens module in the module frame to drive the lens module to move to correct the shaking of the optical lens.
一种取像装置,包括上述实施例所述的光学镜头;以及感光元件,所述感光元件设于所述光学镜头的像侧。An image capturing device, comprising the optical lens described in the above embodiment; and a photosensitive element, the photosensitive element being arranged on the image side of the optical lens.
一种电子装置,包括壳体以及上述实施例所述的取像装置,所述取像装置安装在所述壳体上。An electronic device includes a housing and the imaging device described in the above embodiments, and the imaging device is installed on the housing.
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、目的和优点将从说明书、附图以及权利要求书变得明显。The details of one or more embodiments of the present application are set forth in the following drawings and description. Other features, purposes and advantages of this application will become apparent from the description, drawings and claims.
附图说明Description of the drawings
为了更好地描述和说明这里公开的那些发明的实施例或示例,可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。In order to better describe and explain the embodiments or examples of those inventions disclosed herein, one or more drawings may be referred to. The additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed inventions, the currently described embodiments or examples, and the best mode of these inventions currently understood.
图1为本申请一实施例的光学镜头的结构示意图;FIG. 1 is a schematic diagram of the structure of an optical lens according to an embodiment of the application;
图2为图1所述实施例中相邻两个光学模块的分解示意图;2 is an exploded schematic diagram of two adjacent optical modules in the embodiment shown in FIG. 1;
图3为本申请另一实施例的光学镜头中两个光学模块10相邻时的结构示意图;FIG. 3 is a schematic structural diagram of an optical lens according to another embodiment of the application when two optical modules 10 are adjacent to each other;
图4为本申请另一实施例的光学镜头中两个光学模块10相邻时的结构示意图;4 is a schematic structural diagram of an optical lens according to another embodiment of the application when two optical modules 10 are adjacent to each other;
图5为本申请另一实施例的光学镜头的结构示意图;5 is a schematic structural diagram of an optical lens according to another embodiment of the application;
图6为本申请一实施例的取像装置的结构示意图;6 is a schematic diagram of the structure of an image capturing device according to an embodiment of the application;
图7为本申请一实施例的电子装置的结构示意图。FIG. 7 is a schematic structural diagram of an electronic device according to an embodiment of the application.
具体实施方式Detailed ways
为了使本申请的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本申请进行进一步详细说明。应当理解,此处描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。In order to make the purpose, technical solutions, and advantages of this application clearer and clearer, the following further describes the application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.
需要说明的是,当元件被称为“设置于”另一个元件,它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件,它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的,并不表示是唯一的实施方式。It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only, and are not meant to be the only embodiments.
除非另有定义,本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terms used in the specification of the application herein are only for the purpose of describing specific embodiments, and are not intended to limit the application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.
传统的变焦镜头镜片构成复杂,通常具有两个或两个以上的镜片组,且需要通过主动对准设备将各镜片的光轴逐一对准后再统一与驱动马达进行封装。然而,在实际生产过程中,发明人发现,这样的组装方式很难控制不同镜片组之间的组装精度,导致组装难度大,良品率较低。另外,将镜片组直接封装在镜筒内部也会使得镜片组拆卸更换困难,不利于镜片组的后期调整和维护。The traditional zoom lens has a complicated lens composition, usually having two or more lens groups, and the optical axis of each lens needs to be aligned one by one through an active alignment device, and then packaged with a driving motor in a unified manner. However, in the actual production process, the inventor found that such an assembly method is difficult to control the assembly accuracy between different lens groups, resulting in high assembly difficulty and low yield rate. In addition, packaging the lens group directly inside the lens barrel will also make it difficult to disassemble and replace the lens group, which is not conducive to the later adjustment and maintenance of the lens group.
除此之外,传统的变焦镜头其拍摄焦段通常较广,因此需要镜片组具备较大的工作行程。然而,如果沿用上述的组装方式,在变焦和对焦过程 中,便很难管控镜片组在工作行程内产生的倾斜与偏心问题,特别是在变焦镜头具备多个镜片组时,更是增加了组装的困难度。In addition, the traditional zoom lens usually has a wide shooting focal length, so the lens group needs to have a larger working stroke. However, if the above-mentioned assembly method is used, it will be difficult to control the tilt and eccentricity of the lens group during the zoom and focus process, especially when the zoom lens has multiple lens groups, the assembly is increased. The degree of difficulty.
针对以上方案所存在的缺陷,均是发明人在经过实践并仔细研究后得到的结果,因此,上述问题的发现过程以及下文中本申请实施例针对上述问题所提出的解决方案,都应是发明人在本申请过程中对本申请做出的贡献。The defects in the above solutions are all the results obtained by the inventor after practice and careful study. Therefore, the discovery process of the above problems and the solutions proposed by the embodiments of the application below to solve the above problems should be inventions. The contributions made by people to this application during this application process.
本申请实施例提供一种可将多个镜片组进行模块化组装的光学镜头,包括至少两个光学模块。光学模块的具体数量可以依据实际的需求而设计,例如图1实施例所示的两个光学模块10和20,当然在另一些实施例中,也可以是三个、四个或者五个等等,本申请对此不做限制。The embodiment of the present application provides an optical lens capable of modular assembly of multiple lens groups, including at least two optical modules. The specific number of optical modules can be designed according to actual needs, for example, the two optical modules 10 and 20 shown in the embodiment of FIG. 1, of course, in other embodiments, it can also be three, four, or five, etc. , This application does not restrict this.
该至少两个光学模块沿光轴方向依次排布,且每个光学模块均包括模块框架和设于模块框架内的透镜模组。其中,至少一个光学模块的模块框架内设置有第一驱动机构,第一驱动机构与该模块框架内的透镜模组连接从而驱动该透镜模组移动以实现光学镜头的变焦或对焦;且至少另一光学模块的模块框架内设置有第二驱动机构,第二驱动机构与该模块框架内的透镜模组连接从而驱动该透镜模组移动以校正光学镜头的抖动。The at least two optical modules are arranged in sequence along the optical axis, and each optical module includes a module frame and a lens module set in the module frame. Wherein, the module frame of at least one optical module is provided with a first driving mechanism, and the first driving mechanism is connected with the lens module in the module frame to drive the lens module to move to achieve zooming or focusing of the optical lens; and at least another A second driving mechanism is arranged in the module frame of an optical module, and the second driving mechanism is connected with the lens module in the module frame to drive the lens module to move to correct the shaking of the optical lens.
具体的,以图1所示的光学镜头100为例,图中短划线表示光轴,并建立XYZ坐标轴,其中Z轴与光轴重合。光学模块10和光学模块20沿光轴方向(即Z轴方向)依次排布,并定义沿光轴方向靠近光学模块10的一侧为光学镜头100的物侧,靠近光学模块20的一侧为光学镜头100的像侧。光学模块10包括模块框架11,模块框架11内设置有第一驱动机构12A以及与第一驱动机构12A连接的透镜模组13,第一驱动机构12A能够驱动透镜模组13沿光轴方向移动(如图中光学模块10内的箭头方向所示)以实现光学镜头100的变焦或对焦;光学模块20包括模块框架21,模块框架21内设置有第二驱动机构22A以及与第二驱动机构22A连接的透镜模组23,第二驱动机构22A能够驱动透镜模组23沿X轴移动以校正光学镜头100的抖动。可以理解的是,图1所示的光学镜头100仅作为示例,根据实际的成像要求,透镜模组13和透镜模组23的移动方向也可以与图1实施例的移动方向不同。Specifically, taking the optical lens 100 shown in FIG. 1 as an example, the dashed line in the figure represents the optical axis, and an XYZ coordinate axis is established, where the Z axis coincides with the optical axis. The optical module 10 and the optical module 20 are arranged in sequence along the optical axis direction (ie, the Z-axis direction), and define that the side close to the optical module 10 along the optical axis direction is the object side of the optical lens 100, and the side close to the optical module 20 is The image side of the optical lens 100. The optical module 10 includes a module frame 11 in which a first driving mechanism 12A and a lens module 13 connected to the first driving mechanism 12A are provided. The first driving mechanism 12A can drive the lens module 13 to move along the optical axis ( The direction of the arrow in the optical module 10 is shown in the figure) to achieve zooming or focusing of the optical lens 100; the optical module 20 includes a module frame 21 in which a second drive mechanism 22A is provided and is connected to the second drive mechanism 22A The second driving mechanism 22A can drive the lens module 23 to move along the X axis to correct the shake of the optical lens 100. It is understandable that the optical lens 100 shown in FIG. 1 is only used as an example. According to actual imaging requirements, the moving directions of the lens module 13 and the lens module 23 may also be different from the moving directions of the embodiment in FIG. 1.
进一步的,每一透镜模组均包含一组镜片组,每一组镜片组均可对应搭配有一个独立的驱动机构,从而可使各光学模块独自进行生产与调试。具体的,继续参考图1,透镜模组13内设置有镜片组132,透镜模组23内设置有镜片组232,镜片组132对应设置有第一驱动机构12A,镜片组232对应设置有第二驱动机构22A。Further, each lens module includes a group of lens groups, and each group of lens groups can be matched with an independent driving mechanism, so that each optical module can be independently produced and debugged. Specifically, referring to FIG. 1, the lens module 13 is provided with a lens group 132, the lens module 23 is provided with a lens group 232, the lens group 132 is correspondingly provided with a first driving mechanism 12A, and the lens group 232 is correspondingly provided with a second lens group. Drive mechanism 22A.
上述光学镜头,具备至少两个分体式的光学模块,且每一光学模块均封装有透镜模组以及对应的驱动机构,方便实现光学镜头的变焦、对焦以及防抖功能;在制备光学镜头的过程中,对各光学模块进行光轴校准和组装即可完成镜头的组装,从而可以有效提高各透镜模组的组装精度,提升光学镜头的组装良率;另外,镜片组的模块化设置也方便了镜片组的拆卸 和更换,有利于各镜片组的后期调整和维护。The above-mentioned optical lens has at least two split optical modules, and each optical module is packaged with a lens module and a corresponding drive mechanism, which facilitates the realization of the zoom, focus and anti-shake functions of the optical lens; in the process of preparing the optical lens In, the optical axis calibration and assembly of each optical module can complete the assembly of the lens, which can effectively improve the assembly accuracy of each lens module and improve the assembly yield of the optical lens; in addition, the modular setting of the lens group is also convenient The disassembly and replacement of the lens group is conducive to the later adjustment and maintenance of each lens group.
在一些实施例中,各光学模块的模块框架沿光轴方向依次对接,相邻两个光学模块的模块框架的对接面呈阶梯状且形状互补。具体的,如图2所示,光学模块10的模块框架11上设置有对接面110,对应的,光学模块20的模块框架21上设置有对接面210,对接面110与对接面210均呈阶梯状且形状互补。通过上述设置,有利于满足第一驱动机构12A驱动透镜模组13移动的工作行程,特别是当第一驱动机构12A处于闭环系统中时,透镜模组13中置,此时便可通过调整对接面处的阶梯形状来满足透镜模组13的行程需求,从而保证光学镜头100的成像效果;除此之外,也有利于使相邻两个光学模块10和20通过各自对接面的配合形成相互限位,从而进一步保证透镜模组13和透镜模组23的光轴重合,提高光学镜头100的组装精度和组装良率。In some embodiments, the module frames of each optical module are sequentially butted along the optical axis direction, and the butting surfaces of the module frames of two adjacent optical modules are stepped and have complementary shapes. Specifically, as shown in FIG. 2, the module frame 11 of the optical module 10 is provided with a mating surface 110. Correspondingly, the module frame 21 of the optical module 20 is provided with a mating surface 210, and the mating surface 110 and the mating surface 210 are both stepped. Shape and complementary shape. Through the above arrangement, it is beneficial to meet the working stroke of the first driving mechanism 12A to drive the lens module 13 to move, especially when the first driving mechanism 12A is in a closed loop system, the lens module 13 is placed in the middle, and the docking can be adjusted at this time. The stepped shape at the surface meets the travel requirements of the lens module 13, so as to ensure the imaging effect of the optical lens 100; in addition, it is also beneficial for two adjacent optical modules 10 and 20 to form each other through the cooperation of their mating surfaces. The position limit is further ensured that the optical axes of the lens module 13 and the lens module 23 coincide, and the assembly accuracy and assembly yield of the optical lens 100 are improved.
可以理解的是,当光学模块的数量大于或者等于三个时,除了位于光学镜头两端的光学模块以外的其他光学模块均要形成至少两个对接结构,以分别和其两侧的光学模块相互对接。当然,本申请实施例中,对接结构的形状除了阶梯状外也可以是凹凸不平的齿状或是“弓”字型等等,本申请对此不做限制。It is understandable that when the number of optical modules is greater than or equal to three, all other optical modules except the optical modules located at the two ends of the optical lens must form at least two docking structures to respectively dock with the optical modules on both sides of the optical module. . Of course, in the embodiments of the present application, the shape of the docking structure may be not only a stepped shape, but also an uneven tooth shape or a "bow" shape, etc., which is not limited in the present application.
进一步的,相邻两个光学模块的模块框架内的第一驱动机构和/或第二驱动机构在垂直于光轴的方向上位于光轴两侧。具体的,请参考图1所示的光学镜头100,相邻两个光学模块内的驱动机构可以分别是第一驱动机构12A和第二驱动机构22A,第一驱动机构12A和第二驱动机构22A在垂直于光轴的方向上位于光轴两侧;而在另一些实施例中,如图3所示的光学镜头100’和图4所示的光学镜头100”,相邻两个光学模块内的驱动机构可以均为第一驱动机构12B和12C,其中,两个第一驱动机构12B在垂直于光轴的方向上位于光轴两侧(如图3所示),两个第一驱动机构12C在垂直于光轴的方向上位于光轴两侧(如图4所示);当然,在其他的一些实施例中,相邻两个光学模块内的驱动机构还可以均为第二驱动机构(图未示出),两个第二驱动机构同样在垂直于光轴的方向上位于光轴两侧。如此设置可以充分利用模块框架的内部空间,以方便容纳和移动透镜模组,特别是在驱动透镜模组沿光轴方向移动时,避免相邻两个光学模块的驱动机构在垂直于光轴的方向上位于光轴同侧,可以进一步降低光学镜头的厚度,实现镜头的小型化。Further, the first driving mechanism and/or the second driving mechanism in the module frame of two adjacent optical modules are located on both sides of the optical axis in a direction perpendicular to the optical axis. Specifically, please refer to the optical lens 100 shown in FIG. 1. The driving mechanisms in two adjacent optical modules may be a first driving mechanism 12A and a second driving mechanism 22A, respectively, and the first driving mechanism 12A and the second driving mechanism 22A It is located on both sides of the optical axis in the direction perpendicular to the optical axis; and in other embodiments, the optical lens 100' shown in FIG. 3 and the optical lens 100" shown in FIG. 4 are located in two adjacent optical modules The driving mechanisms of may be both first driving mechanisms 12B and 12C, wherein the two first driving mechanisms 12B are located on both sides of the optical axis in a direction perpendicular to the optical axis (as shown in FIG. 3), and the two first driving mechanisms 12C is located on both sides of the optical axis in the direction perpendicular to the optical axis (as shown in Figure 4); of course, in some other embodiments, the driving mechanisms in two adjacent optical modules may also be second driving mechanisms (Not shown in the figure), the two second driving mechanisms are also located on both sides of the optical axis in the direction perpendicular to the optical axis. This arrangement can make full use of the internal space of the module frame to facilitate the accommodating and moving of the lens module, especially When driving the lens module to move along the optical axis, avoiding that the driving mechanisms of two adjacent optical modules are located on the same side of the optical axis in a direction perpendicular to the optical axis, the thickness of the optical lens can be further reduced, and the miniaturization of the lens can be achieved.
在一些实施例中,各光学模块的模块框架内还设置有与透镜模组连接的导向轴,导向轴横贯模块框架。具体的,请参考图3,导向轴15与透镜模组13连接并沿平行于光轴的方向横贯模块框架11,从而在透镜模组13的移动过程中,既可以使透镜模组13稳定地沿光轴方向移动,同时还可以通过该导向轴对透镜模13组形成稳固支撑,防止透镜模组13在移动过程中产生倾斜与偏心的问题,从而保证光学镜头100’的成像质量。另外,为进一步保证透镜模组13的移动平稳,在另一些实施例中,导向轴15的 数量也可以设置为2个(如图4所示)或2个以上,本申请对此不做限制。In some embodiments, the module frame of each optical module is also provided with a guide shaft connected to the lens module, and the guide shaft traverses the module frame. Specifically, referring to FIG. 3, the guide shaft 15 is connected to the lens module 13 and traverses the module frame 11 in a direction parallel to the optical axis, so that the lens module 13 can be stabilized during the movement of the lens module 13 Moving along the optical axis, the guide shaft can also form a stable support for the lens mold 13 group to prevent tilt and eccentricity of the lens module 13 during movement, thereby ensuring the imaging quality of the optical lens 100'. In addition, in order to further ensure the smooth movement of the lens module 13, in other embodiments, the number of guide shafts 15 can also be set to two (as shown in FIG. 4) or more, which is not limited in this application. .
相对于传统的变焦镜头,本申请实施例通过多个独立的光学模块可大大缩短每个镜片组搭配的导向轴的长度,从而也有利于管控镜片组在移动时的倾斜和偏心情况。Compared with a traditional zoom lens, the embodiment of the present application can greatly shorten the length of the guide shaft matched with each lens group through multiple independent optical modules, which is also beneficial to control the tilt and eccentricity of the lens group when moving.
在一些实施例中,各光学模块还包括位置感测装置,位置感测装置设于模块框架与透镜模组之间,用于感测透镜模组的位置。如图1所示,光学模块10的模块框架11的内壁上设置有位置感测装置14,位置感测装置14可以实时地将透镜模组13的移动位置信息反馈至第一驱动机构12A的控制芯片,从而实现对透镜模组13的移动距离的闭环控制,有利于光学镜头100的快速变焦、对焦与防抖,提升用户的拍摄体验。光学模块20中设置有位置感测装置24,位置感测装置24的设置形式与位置感测装置14的相同,故不再赘述。可以理解的是,位置感测装置14也可以不设置在模块框架11上,只要是光学模块10内能够对透镜模组13进行感测的位置均可。在另一些实施方式中,如图3和图4所示的光学模块10中也设置有位置感测装置14。根据驱动马达的种类,位置感测装置14在模块框架11内壁上的位置可以进行适当调整以适应不同的马达结构。In some embodiments, each optical module further includes a position sensing device, and the position sensing device is provided between the module frame and the lens module for sensing the position of the lens module. As shown in FIG. 1, a position sensing device 14 is provided on the inner wall of the module frame 11 of the optical module 10. The position sensing device 14 can feed back the movement position information of the lens module 13 to the control of the first driving mechanism 12A in real time. The chip thus realizes the closed-loop control of the moving distance of the lens module 13, which is conducive to the rapid zooming, focusing and anti-shake of the optical lens 100, and improves the user's shooting experience. The optical module 20 is provided with a position sensing device 24, and the arrangement form of the position sensing device 24 is the same as that of the position sensing device 14, so it will not be repeated. It is understandable that the position sensing device 14 may not be provided on the module frame 11 as long as it is a position within the optical module 10 that can sense the lens module 13. In other embodiments, a position sensing device 14 is also provided in the optical module 10 as shown in FIGS. 3 and 4. According to the type of the driving motor, the position of the position sensing device 14 on the inner wall of the module frame 11 can be appropriately adjusted to adapt to different motor structures.
进一步的,位置感测装置选自光学传感器和霍尔传感器中的至少一种。如图1所示,位置感测装置14采用光学传感器进行位置感测时,可以对透镜模组13的移动位置进行非接触性测量,且光学传感器的受干扰因素少,从而能够准确的将透镜模组13的移动位置反馈至驱动机构12A;位置感测装置14采用霍尔传感器进行位置感测时,霍尔传感器的抗外磁场干扰能力强,对透镜模组13移动位置的测量精度高且线性度好,从而可以更好地对透镜模组13的移动进行控制。Further, the position sensing device is selected from at least one of an optical sensor and a Hall sensor. As shown in Figure 1, when the position sensing device 14 uses an optical sensor for position sensing, it can perform non-contact measurement of the moving position of the lens module 13, and the optical sensor has less interference factors, so that the lens can be accurately measured. The moving position of the module 13 is fed back to the driving mechanism 12A; when the position sensing device 14 uses a Hall sensor for position sensing, the Hall sensor has a strong ability to resist external magnetic field interference, and the measurement accuracy of the moving position of the lens module 13 is high and The linearity is good, so that the movement of the lens module 13 can be better controlled.
在一些实施例中,第一驱动机构为压电马达、音圈马达、步进马达、滚珠式马达或形状记忆合金马达;第二驱动机构为压电马达、音圈马达、步进马达、滚珠式马达或形状记忆合金马达。根据驱动马达的种类,驱动机构与透镜模组的连接结构也会有所不同。通过将驱动机构设置为不同类型的马达装置,有利于根据实际的应用需求对所述光学镜头进行改进,从而保证用户的拍摄体验。需要指出的是,各光学模块内的驱动机构类型可以全部相同,也可以部分相同,也可以全部不同,本申请对此没有限制。In some embodiments, the first driving mechanism is a piezoelectric motor, a voice coil motor, a stepping motor, a ball motor or a shape memory alloy motor; the second driving mechanism is a piezoelectric motor, a voice coil motor, a stepping motor, a ball Type motor or shape memory alloy motor. According to the type of the driving motor, the connection structure of the driving mechanism and the lens module will be different. By setting the driving mechanism as different types of motor devices, it is beneficial to improve the optical lens according to actual application requirements, thereby ensuring the user's shooting experience. It should be pointed out that the types of driving mechanisms in each optical module can be all the same, or some of them can be the same, or all of them can be different, which is not limited in this application.
以下将分别阐述驱动机构为压电马达、音圈马达以及形状记忆合金马达时,驱动机构与透镜模组的具体连接结构。The specific connection structure of the driving mechanism and the lens module when the driving mechanism is a piezoelectric motor, a voice coil motor, and a shape memory alloy motor will be respectively described below.
如图1所示,第一驱动机构12A和第二驱动机构22A均设置为压电马达。第一驱动机构12A包括压电致动单元121A以及沿光轴方向(即Z轴方向)延伸的驱动轴122A,压电致动单元121A设于模块框架11,驱动轴122A与透镜模组13连接且驱动轴122A的一端连接于压电致动单元121A,模块框架11上开设有供驱动轴122A穿过的孔(图未示出)。压电致动单元121A由压电材料(例如压电陶瓷)制成,因此,在变焦、对焦或是防抖期间,给压电致动单元121A施加一定波形的电压后,压电致动单元121A便会由 于逆压电效应产生形变,进而推动驱动轴122A移动,而驱动轴122A连接透镜模组13,从而可以带动透镜模组13移动。具体的,驱动轴122A可通过弹片与透镜模组13固定连接。第二驱动机构22A包括压电致动单元221A以及沿X轴方向延伸的驱动轴222A,压电致动单元221A设于模块框架21,驱动轴222A与透镜模组23连接且驱动轴222A的一端连接于压电致动单元221A,模块框架21上开设有供驱动轴222A穿过的孔230。As shown in FIG. 1, both the first driving mechanism 12A and the second driving mechanism 22A are configured as piezoelectric motors. The first driving mechanism 12A includes a piezoelectric actuating unit 121A and a driving shaft 122A extending along the optical axis direction (ie, the Z-axis direction). The piezoelectric actuating unit 121A is provided in the module frame 11, and the driving shaft 122A is connected to the lens module 13 And one end of the drive shaft 122A is connected to the piezoelectric actuation unit 121A, and the module frame 11 is provided with a hole (not shown in the figure) for the drive shaft 122A to pass through. The piezoelectric actuation unit 121A is made of piezoelectric material (for example, piezoelectric ceramics). Therefore, after a certain waveform voltage is applied to the piezoelectric actuation unit 121A during zooming, focusing or anti-shake period, the piezoelectric actuation unit 121A 121A will deform due to the inverse piezoelectric effect, and then drive the drive shaft 122A to move, and the drive shaft 122A is connected to the lens module 13 so as to drive the lens module 13 to move. Specifically, the drive shaft 122A can be fixedly connected to the lens module 13 through an elastic sheet. The second driving mechanism 22A includes a piezoelectric actuating unit 221A and a driving shaft 222A extending along the X-axis direction. The piezoelectric actuating unit 221A is provided in the module frame 21. The driving shaft 222A is connected to the lens module 23 and one end of the driving shaft 222A Connected to the piezoelectric actuating unit 221A, the module frame 21 is provided with a hole 230 for the drive shaft 222A to pass through.
另外,在另一些实施方式中,图1所示的光学模块10中也可以设置导向轴(图未示出)。具体的,以光学模块10为例,导向轴横贯模块框架11且与驱动轴122A平行设置,透镜模组13远离驱动轴122A的一侧与导向轴连接,从而在透镜模组13的移动过程中,既可以使透镜模组13稳定地沿光轴方向移动,同时还可以通过该导向轴对透镜模13组形成稳固支撑,防止透镜模组13在移动过程中产生倾斜与偏心的问题,从而保证光学镜头100的成像质量。In addition, in other embodiments, a guide shaft (not shown in the figure) may also be provided in the optical module 10 shown in FIG. 1. Specifically, taking the optical module 10 as an example, the guide shaft traverses the module frame 11 and is arranged parallel to the drive shaft 122A, and the side of the lens module 13 away from the drive shaft 122A is connected to the guide shaft, so that during the movement of the lens module 13 , The lens module 13 can be moved stably along the optical axis, and the guide shaft can also form a stable support for the lens module 13 group, preventing the lens module 13 from tilting and decentering during the moving process, thereby ensuring The imaging quality of the optical lens 100.
由压电材料制成的压电致动单元通常具备尺寸小、推力大、速度快以及精度高等优势,因此有利于减小光学模块10和20的空间占用体积,从而保证光学镜头100的小型化;同时还可以使透镜模组13和23具有足够的工作行程,以满足对应焦段的拍摄需求,实现光学镜头100的快速准确合焦。Piezoelectric actuating units made of piezoelectric materials usually have the advantages of small size, large thrust, fast speed, and high accuracy, so they are beneficial to reduce the space occupied by the optical modules 10 and 20, thereby ensuring the miniaturization of the optical lens 100 ; At the same time, the lens modules 13 and 23 can also have sufficient working strokes to meet the shooting requirements of the corresponding focal lengths, and achieve fast and accurate focusing of the optical lens 100.
如图3所示,第一驱动机构12B和第二驱动机构(图未示出)均设置为音圈马达。以第一驱动机构12B为例,第一驱动机构12B包括线圈121B以及用于给线圈121B施加磁场的磁铁122B,线圈121B设于透镜模组13,磁铁122B设于模块框架11的内壁,透镜模组13远离磁铁122B的一侧设置有导向轴15。在变焦、对焦或是防抖期间,给线圈121B施加一定波形的电压后,线圈121B中便会存在电流,在磁铁122B的磁场作用下,线圈121B在电磁力的作用下可以带动透镜模组13沿导向轴15移动。As shown in FIG. 3, the first driving mechanism 12B and the second driving mechanism (not shown in the figure) are both configured as voice coil motors. Taking the first driving mechanism 12B as an example, the first driving mechanism 12B includes a coil 121B and a magnet 122B for applying a magnetic field to the coil 121B. The coil 121B is provided on the lens module 13, and the magnet 122B is provided on the inner wall of the module frame 11. A guide shaft 15 is provided on the side of the group 13 away from the magnet 122B. During zooming, focusing or anti-shake period, after a certain waveform voltage is applied to the coil 121B, there will be a current in the coil 121B. Under the action of the magnetic field of the magnet 122B, the coil 121B can drive the lens module 13 under the action of electromagnetic force. Move along the guide shaft 15.
如图4所示,第一驱动机构12C和第二驱动机构(图未示出)均设置为形状记忆合金马达。以第一驱动机构12C为例,第一驱动机构12C由记忆合金材料制成,可以是螺旋状的记忆金属。该螺旋状的记忆金属一端与模块框架11的内壁连接,另一端与透镜模组13连接。进一步的,透镜模组13的两侧还设置有导向轴15,该螺旋状的记忆金属设置为两个且分别套设在透镜模组13两侧的导向轴15上。在变焦、对焦或是防抖期间,给螺旋状的记忆金属通电后,记忆金属便会发生形变从而带动透镜模组13沿导向轴15移动。As shown in FIG. 4, the first driving mechanism 12C and the second driving mechanism (not shown in the figure) are both configured as shape memory alloy motors. Taking the first driving mechanism 12C as an example, the first driving mechanism 12C is made of a memory alloy material, which may be a spiral-shaped memory metal. One end of the spiral memory metal is connected to the inner wall of the module frame 11, and the other end is connected to the lens module 13. Furthermore, two guiding shafts 15 are provided on both sides of the lens module 13, and the spiral memory metal is arranged in two and sleeved on the guiding shafts 15 on both sides of the lens module 13 respectively. During zooming, focusing, or anti-shake, after the spiral memory metal is energized, the memory metal will deform and drive the lens module 13 to move along the guide shaft 15.
在一些实施例中,透镜模组包括透镜框架,镜片组安装在透镜框架内,镜片组包括至少一片透镜。具体的,请一并参考图1、图3和图4,透镜模组13包括透镜框架131,第二框架131内安装有镜片组132,镜片组132包括至少一片透镜。其中,透镜可以是各种类型的透镜,例如双凸透镜、平凸透镜、凹凸透镜、双凹透镜、平凹透镜、凸凹透镜等。通过将镜片组设置在透镜框架内,有利于控制镜片组的整体移动,同时还可以避免在变 焦和对焦过程中镜片组内部的透镜发生相对位移,进而保证成像质量。In some embodiments, the lens module includes a lens frame, the lens group is installed in the lens frame, and the lens group includes at least one lens. Specifically, please refer to FIGS. 1, 3 and 4 together. The lens module 13 includes a lens frame 131, a lens group 132 is installed in the second frame 131, and the lens group 132 includes at least one lens. Among them, the lens may be various types of lenses, such as a biconvex lens, a plano-convex lens, a meniscus lens, a biconcave lens, a plano-concave lens, a convex-concave lens, and the like. By arranging the lens group in the lens frame, it is beneficial to control the overall movement of the lens group. At the same time, it can also avoid the relative displacement of the lenses inside the lens group during zooming and focusing, thereby ensuring the image quality.
在一些实施例中,光学镜头还包括一光转向元件,光转向元件用于使入射进光学镜头的光线转向后投射至各光学模块。如图5所示,光学镜头200包括光转向元件30以及图1所示实施例的光学模块10和光学模块20。具体的,光转向元件30可以是三棱镜,从而可使垂直于光轴方向入射的光线在经光转向元件30转向后,能够投射至排布好的各光学模块。通过设置光转向元件30可使该光转向元件30与光学模块10、光学模块20组合形成潜望式镜头,增加了各光学模块排布方向的自由度,有利于将光学镜头200适配至手机、平板等尺寸受限的便携式电子设备,实现缩减设备机身厚度的目的。In some embodiments, the optical lens further includes a light turning element, and the light turning element is used to turn the light incident into the optical lens and project it to each optical module. As shown in FIG. 5, the optical lens 200 includes a light turning element 30 and the optical module 10 and the optical module 20 of the embodiment shown in FIG. 1. Specifically, the light turning element 30 may be a triangular prism, so that the light incident perpendicular to the optical axis direction can be projected to the arranged optical modules after being turned by the light turning element 30. By arranging the light turning element 30, the light turning element 30 can be combined with the optical module 10 and the optical module 20 to form a periscope lens, which increases the degree of freedom in the arrangement of the optical modules, and facilitates the adaptation of the optical lens 200 to the mobile phone. , Tablet and other portable electronic devices with limited size, to achieve the purpose of reducing the thickness of the device body.
进一步的,如图5所示,光转向元件30与光学模块10之间还设置有一聚焦透镜40,聚焦透镜40用于使转折后的光线汇聚从而射入各光学模块,以保证景物的拍摄完整。Further, as shown in FIG. 5, a focusing lens 40 is also provided between the light turning element 30 and the optical module 10, and the focusing lens 40 is used to converge the light after the turning to enter the optical modules to ensure the complete shooting of the scene. .
对应的,在光学镜头200中,还可以设置一抖动补偿单元,该抖动补偿单元被配置为驱动光转向元件30或聚焦透镜40相对于各光学模块平移或转动,进而实现光学镜头200的防抖。Correspondingly, in the optical lens 200, a shake compensation unit may be further provided, and the shake compensation unit is configured to drive the light turning element 30 or the focusing lens 40 to translate or rotate relative to each optical module, thereby realizing the anti-shake of the optical lens 200 .
在一些实施例中,光学镜头还包括用于容纳各光学模块的镜头框架,镜头框架与各光学模块的模块框架通过胶水粘接。继续参考图5,光学镜头200的模块框架11和模块框架21的外壁上均涂布有胶水60,并使模块框架11和模块框架21通过胶水60与镜头框架50的内壁粘接,从而将光学模块10和光学模块20均容纳在镜头框架50中。通过上述方式,既可以将各光学模块形成的变焦模块作为一个整体与其他光学模块进行搭配组合,同时也可以防止各光学模块在变焦或对焦过程中发生相对位移,保证成像质量;除此之外还可以对各光学模块形成抗冲击保护。In some embodiments, the optical lens further includes a lens frame for accommodating each optical module, and the lens frame and the module frame of each optical module are bonded by glue. 5, the outer walls of the module frame 11 and the module frame 21 of the optical lens 200 are coated with glue 60, and the module frame 11 and the module frame 21 are bonded to the inner wall of the lens frame 50 through the glue 60, thereby connecting the optical lens Both the module 10 and the optical module 20 are accommodated in the lens frame 50. Through the above method, the zoom module formed by each optical module can be combined with other optical modules as a whole, and at the same time, the relative displacement of each optical module during zooming or focusing can be prevented, and the imaging quality can be guaranteed; in addition, It can also form impact protection for each optical module.
请参考图6,本申请还提供一种取像装置300,包括如前文所述的光学镜头200以及感光元件70,感光元件70设于光学镜头100的像侧,以接收由镜头100形成的携带图像信息的光。具体的,感光元件70可以采用互补金属氧化物半导体(CMOS,Complementary Metal Oxide Semiconductor)图像传感器或者电荷耦合元件(CCD,Charge-coupled Device)图像传感器。Please refer to FIG. 6, the present application also provides an imaging device 300, including the optical lens 200 and a photosensitive element 70 as described above. The photosensitive element 70 is arranged on the image side of the optical lens 100 to receive the carrying device formed by the lens 100. The light of image information. Specifically, the photosensitive element 70 may adopt a complementary metal oxide semiconductor (CMOS, Complementary Metal Oxide Semiconductor) image sensor or a charge-coupled device (CCD, Charge-coupled Device) image sensor.
上述取像装置300,利用如前文所述的光学镜头200可以提升取像装置的组装良率,降低取像装置的模组厚度,同时也能快速实现变焦、对焦以及防抖的调整,提高成像质量。The above-mentioned imaging device 300, using the optical lens 200 as described above, can improve the assembly yield of the imaging device, reduce the module thickness of the imaging device, and can also quickly realize the adjustment of zoom, focus and anti-shake, and improve imaging. quality.
请参考图7,本申请还提供一种电子装置400,包括壳体401以及如前文所述的取像装置300,取像装置300安装在壳体401上用以获取图像。具体的,取像装置300设置在壳体401内并从壳体401暴露以获取图像,壳体401可以给取像装置300提供防尘、防水防摔等保护,壳体401上开设有与取像装置300对应的孔,以使光线从孔中穿入或穿出壳体401。Please refer to FIG. 7, the present application also provides an electronic device 400, which includes a housing 401 and the image capturing device 300 as described above. The image capturing device 300 is installed on the housing 401 to capture images. Specifically, the imaging device 300 is disposed in the housing 401 and exposed from the housing 401 to acquire images. The housing 401 can provide the imaging device 300 with protection from dust, water, and drop. The corresponding hole of the imaging device 300 allows light to penetrate into or out of the housing 401 from the hole.
上述电子装置,利用如前文所述的取像装置300可以拍摄得到远近不 同的景物图像,同时成像质量也得到提升,满足人们的专业化拍摄需求。需要指出的是,本申请实施方式的电子装置包括但不限于移动电话、汽车车载镜头、个人平板、个人数字助理、游戏机、个人计算机、相机以及智能手表等信息终端设备或具有拍照功能的家电产品等。The above-mentioned electronic device can use the image capturing device 300 as described above to capture images of different distances and nears, and at the same time, the image quality is also improved to meet people's professional shooting needs. It should be pointed out that the electronic devices in the implementation of this application include, but are not limited to, mobile phones, car lenses, personal tablets, personal digital assistants, game consoles, personal computers, cameras, smart watches and other information terminal equipment or home appliances with camera functions. Products, etc.
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.
以上所述实施例仅表达了本申请的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干变形和改进,这些都属于本申请的保护范围。因此,本申请的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be subject to the appended claims.

Claims (12)

  1. 一种光学镜头,其特征在于,包括:An optical lens, characterized in that it comprises:
    沿光轴方向依次排布的至少两个光学模块,每个所述光学模块均包括模块框架和设于所述模块框架内的透镜模组;At least two optical modules arranged in sequence along the optical axis, each of the optical modules includes a module frame and a lens module set in the module frame;
    其中,至少一个所述光学模块的模块框架内设置有第一驱动机构,所述第一驱动机构与该模块框架内的透镜模组连接从而驱动该透镜模组移动以实现所述光学镜头的变焦或对焦;且,Wherein, at least one of the optical modules is provided with a first driving mechanism in the module frame, and the first driving mechanism is connected with the lens module in the module frame to drive the lens module to move to achieve zooming of the optical lens. Or focus; and,
    至少另一所述光学模块的模块框架内设置有第二驱动机构,所述第二驱动机构与该模块框架内的透镜模组连接从而驱动该透镜模组移动以校正所述光学镜头的抖动。A second driving mechanism is provided in the module frame of at least another optical module, and the second driving mechanism is connected with the lens module in the module frame to drive the lens module to move to correct the shaking of the optical lens.
  2. 根据权利要求1所述的光学镜头,其特征在于,各所述光学模块的模块框架沿光轴方向依次对接,相邻两个所述光学模块的模块框架的对接面呈阶梯状且形状互补。The optical lens of claim 1, wherein the module frames of each optical module are sequentially butted along the optical axis direction, and the butting surfaces of the module frames of two adjacent optical modules are stepped and have complementary shapes.
  3. 根据权利要求2所述的光学镜头,其特征在于,相邻两个所述光学模块的模块框架内的第一驱动机构和/或第二驱动机构在垂直于光轴的方向上位于光轴两侧。The optical lens according to claim 2, wherein the first driving mechanism and/or the second driving mechanism in the module frame of two adjacent optical modules are located at two positions of the optical axis in a direction perpendicular to the optical axis. side.
  4. 根据权利要求1所述的光学镜头,其特征在于,各所述光学模块的模块框架内还设置有与所述透镜模组连接的导向轴,所述导向轴横贯所述模块框架。The optical lens of claim 1, wherein a guide shaft connected to the lens module is further provided in the module frame of each optical module, and the guide shaft crosses the module frame.
  5. 根据权利要求1所述的光学镜头,其特征在于,各所述光学模块还包括位置感测装置,所述位置感测装置设于所述模块框架与所述透镜模组之间,用于感测所述透镜模组的位置。The optical lens of claim 1, wherein each of the optical modules further comprises a position sensing device, and the position sensing device is provided between the module frame and the lens module for sensing Measure the position of the lens module.
  6. 根据权利要求5所述的光学镜头,其特征在于,所述位置感测装置选自光学传感器和霍尔传感器中的至少一种。The optical lens of claim 5, wherein the position sensing device is selected from at least one of an optical sensor and a Hall sensor.
  7. 根据权利要求1-6任一项所述的光学镜头,其特征在于,The optical lens according to any one of claims 1-6, wherein:
    所述第一驱动机构为压电马达、音圈马达、步进马达、滚珠式马达或形状记忆合金马达;The first driving mechanism is a piezoelectric motor, a voice coil motor, a stepping motor, a ball motor or a shape memory alloy motor;
    所述第二驱动机构为压电马达、音圈马达、步进马达、滚珠式马达或形状记忆合金马达。The second driving mechanism is a piezoelectric motor, a voice coil motor, a stepping motor, a ball type motor or a shape memory alloy motor.
  8. 根据权利要求1所述的光学镜头,其特征在于,所述透镜模组包括透镜框架,所述透镜框架内安装有镜片组,所述镜片组包括至少一片透镜。The optical lens according to claim 1, wherein the lens module includes a lens frame, a lens group is installed in the lens frame, and the lens group includes at least one lens.
  9. 根据权利要求1所述的光学镜头,其特征在于,所述光学镜头还包括一光转向元件,所述光转向元件用于使入射进所述光学镜头的光线转向后投射至各所述光学模块。The optical lens according to claim 1, wherein the optical lens further comprises a light turning element, and the light turning element is used to turn the light incident into the optical lens and project it to each of the optical modules. .
  10. 根据权利要求1所述的光学镜头,其特征在于,所述光学镜头还包括用于容纳各所述光学模块的镜头框架,所述镜头框架与各所述光学模块的模块框架通过胶水粘接。The optical lens according to claim 1, wherein the optical lens further comprises a lens frame for accommodating each of the optical modules, and the lens frame and the module frame of each of the optical modules are bonded by glue.
  11. 一种取像装置,其特征在于,包括如权利要求1-10任一项所述的 光学镜头以及感光元件,所述感光元件设于所述光学镜头的像侧。An image capturing device, characterized by comprising the optical lens according to any one of claims 1-10 and a photosensitive element, the photosensitive element being arranged on the image side of the optical lens.
  12. 一种电子装置,其特征在于,包括壳体以及如权利要求11所述的取像装置,所述取像装置安装在所述壳体上。An electronic device, comprising a housing and the image capturing device according to claim 11, the image capturing device being installed on the housing.
PCT/CN2020/070417 2020-01-06 2020-01-06 Optical lens, image capturing device, and electronic device WO2021138757A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/070417 WO2021138757A1 (en) 2020-01-06 2020-01-06 Optical lens, image capturing device, and electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/070417 WO2021138757A1 (en) 2020-01-06 2020-01-06 Optical lens, image capturing device, and electronic device

Publications (1)

Publication Number Publication Date
WO2021138757A1 true WO2021138757A1 (en) 2021-07-15

Family

ID=76787439

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/070417 WO2021138757A1 (en) 2020-01-06 2020-01-06 Optical lens, image capturing device, and electronic device

Country Status (1)

Country Link
WO (1) WO2021138757A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1892293A (en) * 2005-06-29 2007-01-10 奥林巴斯映像株式会社 Camera system equipped with camera shake correction function
US20070019937A1 (en) * 2005-07-22 2007-01-25 Fuji Photo Film Co., Ltd. Image-taking apparatus
CN1940621A (en) * 2005-09-30 2007-04-04 鸿富锦精密工业(深圳)有限公司 Optical mould set
CN101206301A (en) * 2006-12-22 2008-06-25 鸿富锦精密工业(深圳)有限公司 Zooming lens module group
US20140092265A1 (en) * 2012-10-02 2014-04-03 Tdk Taiwan Corp. Integrated Substrate for Anti-Shake Apparatus
CN103955045A (en) * 2014-05-22 2014-07-30 中山联合光电科技有限公司 Optical system with replaceable lens set and operation lens of replaceable lens set
CN206948461U (en) * 2017-07-05 2018-01-30 深圳市联合影像有限公司 A kind of camera module of stabilization
CN108540712A (en) * 2017-03-03 2018-09-14 索尼公司 Interchangeable lens, imaging device and camera arrangement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1892293A (en) * 2005-06-29 2007-01-10 奥林巴斯映像株式会社 Camera system equipped with camera shake correction function
US20070019937A1 (en) * 2005-07-22 2007-01-25 Fuji Photo Film Co., Ltd. Image-taking apparatus
CN1940621A (en) * 2005-09-30 2007-04-04 鸿富锦精密工业(深圳)有限公司 Optical mould set
CN101206301A (en) * 2006-12-22 2008-06-25 鸿富锦精密工业(深圳)有限公司 Zooming lens module group
US20140092265A1 (en) * 2012-10-02 2014-04-03 Tdk Taiwan Corp. Integrated Substrate for Anti-Shake Apparatus
CN103955045A (en) * 2014-05-22 2014-07-30 中山联合光电科技有限公司 Optical system with replaceable lens set and operation lens of replaceable lens set
CN108540712A (en) * 2017-03-03 2018-09-14 索尼公司 Interchangeable lens, imaging device and camera arrangement
CN206948461U (en) * 2017-07-05 2018-01-30 深圳市联合影像有限公司 A kind of camera module of stabilization

Similar Documents

Publication Publication Date Title
CN211505995U (en) Optical lens, image capturing device and electronic device
US6867933B2 (en) Image-taking apparatus, and camera and camera system incorporating it
US7573647B2 (en) Optical unit and image capturing apparatus including the same
US7593164B2 (en) Zoom lens system and image-sensing apparatus having image shake correcting capability
TWI344013B (en)
US20070058268A1 (en) Variable-magnification optical system and image taking apparatus
JP4907169B2 (en) Zoom lens, camera device, and portable information terminal device
JP5029185B2 (en) Variable magnification optical system, imaging device, and digital device
WO2015192786A1 (en) Focusing motor capable of realizing optical zooming and optical anti-vibration simultaneously
JP2007264173A (en) Imaging optical system and imaging apparatus
WO2021108972A1 (en) Camera module and electronic device
US20060262420A1 (en) Lens unit and an image-sensing apparatus therewith
JP2008233611A (en) Variable power optical system, imaging apparatus and digital equipment
JP2007334051A (en) Zoom lens and imaging apparatus
US20100157450A1 (en) Camera module
US9557541B2 (en) Zoom lens system and photographing apparatus
TW201104284A (en) Imaging lens system
CN109218590A (en) Imaging modules, CCD camera assembly and electronic device
JP2007233163A (en) Zoom lens and imaging apparatus
US8018661B2 (en) Lens barrel and optical element driving device
JP2008268977A (en) Zoom lens, camera and personal digital assistant device
WO2021138757A1 (en) Optical lens, image capturing device, and electronic device
CN210670291U (en) Camera module and electronic equipment
Matsusaka et al. Ultracompact optical zoom lens for mobile phone
JP2004271937A (en) Zoom lens, camera and personal digital assistant using same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20911878

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20911878

Country of ref document: EP

Kind code of ref document: A1