WO2022037591A1

WO2022037591A1 - Lens module, camera module, and terminal

Info

Publication number: WO2022037591A1
Application number: PCT/CN2021/113094
Authority: WO
Inventors: 王庆平; 郑士胜; 苏忱; 杨沫; 郑云达; 李瑞华; 张熙
Original assignee: 华为技术有限公司
Priority date: 2020-08-19
Filing date: 2021-08-17
Publication date: 2022-02-24
Also published as: CN114167575A

Abstract

Disclosed in the embodiments of the present application are a lens module, a camera module and a terminal. The lens module comprises: one or more lens groups, and a light reflecting element and a light splitting element which are sequentially arranged along a first optical axis, wherein one or more lens groups are separately arranged on an object side of the light splitting element along a second optical axis, or arranged between the light splitting element and the light reflecting element along the first optical axis, or arranged at the side of the light splitting element away from the light reflecting element along the first optical axis; the light splitting element comprises a light splitting surface, with an included angle between the light splitting surface and the first optical axis being greater than 0° and less than 90°; and the light splitting element is used for splitting the light beam, which is incident to the light splitting surface from the object side along the second optical axis, twice so as to form a first transmission light beam. The light splitting element and the light reflecting element are combined to achieve the folding of a light path, which facilitates a reduction in the size of the lens module to achieve the miniaturization of the terminal.

Description

镜头模组、摄像模组和终端Lens modules, camera modules and terminals

本申请要求于2020年8月19日提交到国家知识产权局、申请号为202010839362.5，发明名称为“镜头模组、摄像模组和终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application with the application number 202010839362.5 and the invention title "Lens Module, Camera Module and Terminal", which was submitted to the State Intellectual Property Office on August 19, 2020, the entire contents of which are incorporated by reference in this application.

技术领域technical field

本申请实施例涉及光学成像技术领域，尤其涉及一种镜头模组、摄像模组和终端。The embodiments of the present application relate to the technical field of optical imaging, and in particular, to a lens module, a camera module, and a terminal.

背景技术Background technique

目前，越来越多的电子产品中集成有摄像头，随着人们对远距离和微距离拍摄需求的增加，摄像模组的变焦倍率越来越大，大倍率变焦所需光路的有效焦距较长，也即是需要长焦光路。At present, more and more electronic products are integrated with cameras. With the increase of people's demand for long-distance and micro-distance shooting, the zoom ratio of the camera module is getting larger and larger, and the effective focal length of the optical path required for large-magnification zoom is longer. , that is, a telephoto optical path is required.

然而，为了加大变焦倍率，摄像模组沿其光轴方向的长度比较大，增大了摄像模组整体尺寸，会占用较大的设备空间，不利于产品的小型化。However, in order to increase the zoom ratio, the length of the camera module along the optical axis direction is relatively large, which increases the overall size of the camera module and occupies a large equipment space, which is not conducive to the miniaturization of the product.

发明内容SUMMARY OF THE INVENTION

本申请实施例提供一种镜头模组、摄像模组和终端，解决了摄像模组尺寸大的问题。The embodiments of the present application provide a lens module, a camera module and a terminal, which solve the problem of the large size of the camera module.

为达到上述目的，本申请实施例采用如下技术方案：本申请实施例的第一方面，提供一种镜头模组，包括：一个或多个透镜组，以及沿第一光轴依次设置的反光元件和分光元件；其中，所述一个或多个透镜组分别沿第二光轴设置在所述分光元件的物侧，或沿第一光轴设置在所述分光元件与所述反光元件之间，或沿第一光轴设置在所述分光元件远离所述反光元件的一侧；所述透镜组用于成像；该分光元件包括：分光面，该分光面与该第一光轴之间的夹角大于0°且小于90°；该分光元件用于对物侧沿第二光轴入射至分光面的光束进行第一次分光，形成被该分光元件反射的第一反射光束，并将该第一反射光束沿该第一光轴反射至该反光元件，该反光元件用于将该第一反射光束反射至该分光元件，该分光元件还用于对该反光元件反射回来的第一反射光束进行第二次分光，形成穿过该分光面的第二透射光束。由上述可知，该分光元件和该反光元件组合，可以改变光线的传输路径，采用潜望和折返的光路设计，实现光路折叠，有利于减小镜头模组的尺寸，实现了终端的小型化。In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions: In a first aspect of the embodiments of the present application, a lens module is provided, comprising: one or more lens groups, and reflective elements arranged in sequence along the first optical axis and a spectroscopic element; wherein, the one or more lens groups are respectively arranged on the object side of the spectroscopic element along the second optical axis, or between the spectroscopic element and the reflective element along the first optical axis, Or set on the side of the light splitting element away from the reflective element along the first optical axis; the lens group is used for imaging; the light splitting element comprises: a light splitting surface, a clip between the light splitting surface and the first optical axis The angle is greater than 0° and less than 90°; the beam splitting element is used to perform the first splitting of the light beam incident on the object side along the second optical axis to the beam splitting surface to form a first reflected beam reflected by the A reflected light beam is reflected to the light-reflecting element along the first optical axis, and the light-reflecting element is used to reflect the first reflected light beam to the light-splitting element, and the light-splitting element is also used to perform the first reflected light beam reflected from the light-reflecting element. The light is split for the second time to form a second transmitted light beam passing through the light splitting surface. It can be seen from the above that the combination of the light splitting element and the reflective element can change the transmission path of the light. The optical path design of periscope and return is adopted to realize the folding of the optical path, which is beneficial to reduce the size of the lens module and realize the miniaturization of the terminal.

根据第一方面，在一种可能的设计中，该分光元件包括透明平板，该透明平板包括分光面，该分光面上设有光学膜层。由此，该分光元件采用透明平板结构，结构简单。According to the first aspect, in a possible design, the light-splitting element includes a transparent flat plate, and the transparent flat plate includes a light-splitting surface, and an optical film layer is provided on the light-splitting surface. Therefore, the light splitting element adopts a transparent flat plate structure, and the structure is simple.

根据第一方面，在一种可能的设计中，该分光元件包括：至少两个直角棱镜，该至少两个直角棱镜组成立方体结构，该至少两个直角棱镜的接触面为分光面，该分光面上设有光学膜层。由此，该分光元件采用立方体结构，在镜头模组中组装更方便，并且由于光学膜层设置在立方体结构内部，没有暴露在空气中，不易损坏和腐蚀，因而分光元件的机械、化学稳定性更高。According to the first aspect, in a possible design, the light splitting element includes: at least two right angle prisms, the at least two right angle prisms form a cube structure, the contact surfaces of the at least two right angle prisms are light splitting surfaces, and the light splitting surfaces There is an optical film layer on it. Therefore, the spectroscopic element adopts a cube structure, which is more convenient to assemble in the lens module, and because the optical film layer is arranged inside the cube structure, it is not exposed to the air, and is not easily damaged and corroded, so the mechanical and chemical stability of the spectroscopic element is higher.

根据第一方面，在一种可能的设计中，该第一光轴与该分光面的夹角为45°，该第一光轴和该第二光轴的夹角为90°。由此，使得第二光轴入射的光线可以沿第一光轴被反射，改变了光线的光路，实现潜望设计。According to the first aspect, in a possible design, the included angle between the first optical axis and the beam splitting surface is 45°, and the included angle between the first optical axis and the second optical axis is 90°. Therefore, the light incident on the second optical axis can be reflected along the first optical axis, the optical path of the light is changed, and the periscope design is realized.

根据第一方面，在一种可能的设计中，该光学膜层包括偏振分光膜；该镜头模组还包括：波片，该波片设置在该反光元件和该分光元件之间；该偏振分光膜用于将入射的非偏振光束分成两束偏振方向不同的偏振光，其中一束偏振光穿过该偏振分光膜，另一束偏振光被反射，该波片用于改变被反射的偏振光的偏振方向，使得该被反射的偏振光经反射元件反射后能再次通过该偏振分光膜。由此，偏振分光镜能把入射的非偏振光分成两束偏振方向不同的偏振光。其中偏振方向为第一方向的偏振光完全通过，偏振方向为第二方向的偏振光被反射至反射元件，第一方向和第二方向的相位相差π/2，被反射的偏振光第一次经过四分之一波片后偏振方向发生π/4变化，然后被反光元件反射，其偏振状态不变。被反光元件反射后的光经过四分之一波片，偏振方向再增加π/4，偏振方向变为第一方向，因此再次经过偏振分光镜时不发生反射，而是完全透过，最终在感光元件处成像，该过程中只有50％的光损失，光损失较小。According to the first aspect, in a possible design, the optical film layer includes a polarization beam splitting film; the lens module further includes: a wave plate, the wave plate is arranged between the reflective element and the beam splitting element; the polarization beam splitter The film is used to split the incident unpolarized light beam into two polarized lights with different polarization directions, one of the polarized light passes through the polarizing beam splitting film, and the other polarized light is reflected, and the wave plate is used to change the reflected polarized light so that the reflected polarized light can pass through the polarized beam splitter again after being reflected by the reflective element. Thus, the polarization beam splitter can split the incident unpolarized light into two polarized lights with different polarization directions. The polarized light whose polarization direction is the first direction completely passes through, and the polarized light whose polarization direction is the second direction is reflected to the reflective element. The phase difference between the first and second directions is π/2, and the reflected polarized light is first After passing through the quarter-wave plate, the polarization direction changes by π/4, and then it is reflected by the reflective element, and its polarization state remains unchanged. The light reflected by the reflective element passes through the quarter-wave plate, and the polarization direction increases by π/4, and the polarization direction becomes the first direction. Therefore, when it passes through the polarization beam splitter again, it will not be reflected, but will be completely transmitted. When imaging at the photosensitive element, only 50% of the light is lost in the process, and the light loss is small.

在另一种可能的设计中，该光学膜层包括非偏振分光膜。由此，在光束第一次通过光学膜层时，例如有一半的光被反射，一半的光透射，被反射的光束被反光元件反射，当反射光第二次通过光学膜层时，有一半的光被反射，一半的光透射，最终会有75％的光损失，非偏振分光膜不会丢失入射光线中的偏振光信息。In another possible design, the optical film layer includes a non-polarizing beam splitter film. Therefore, when the light beam passes through the optical film for the first time, for example, half of the light is reflected, half of the light is transmitted, and the reflected light beam is reflected by the reflective element. When the reflected light passes through the optical film for the second time, half of the light is transmitted. The light is reflected, half of the light is transmitted, and eventually 75% of the light is lost, and the non-polarized beam splitter film will not lose the polarized light information in the incident light.

根据第一方面，在一种可能的设计中，该镜头模组还包括：焦距调节组件；该焦距调节组件与该透镜组和该反光元件的至少一个连接，该焦距调节组件用于调节该镜头模组的焦距。由此，通过设置调焦组件，可以改变镜头模组的***焦距，实现较大范围的变焦。According to the first aspect, in a possible design, the lens module further includes: a focal length adjustment assembly; the focal length adjustment assembly is connected to at least one of the lens assembly and the reflective element, and the focal length adjustment assembly is used to adjust the lens The focal length of the module. Therefore, by arranging the focusing assembly, the system focal length of the lens module can be changed to achieve a wider range of zooming.

根据第一方面，在一种可能的设计中，该透镜组包括：变焦透镜；该焦距调节组件包括：与该变焦透镜连接的变焦透镜致动器；该变焦透镜致动器用于调节该变焦透镜的光焦度。由此，可以通过调整变焦透镜的焦距改变镜头模组的***焦距，实现较大范围的变焦。According to the first aspect, in a possible design, the lens group includes: a zoom lens; the focal length adjustment assembly includes: a zoom lens actuator connected with the zoom lens; the zoom lens actuator is used to adjust the zoom lens focal power. Therefore, the system focal length of the lens module can be changed by adjusting the focal length of the zoom lens, thereby realizing a wider range of zooming.

根据第一方面，在一种可能的设计中，该变焦透镜包括：液体透镜或柔性透镜。其中，液体透镜和柔性透镜尺寸小、变焦响应快，减小了镜头模组占用空间。According to the first aspect, in a possible design, the zoom lens includes: a liquid lens or a flexible lens. Among them, the liquid lens and the flexible lens have small size and fast zoom response, which reduces the space occupied by the lens module.

根据第一方面，在一种可能的设计中，该反光元件包括曲面反射镜；该焦距调节组件包括：与该反光元件连接的第一反光元件致动器，该第一反光元件致动器与该反光元件连接；该第一反光元件致动器用于驱动该第一反光元件沿该第二光轴平移，使得该第一反光元件的位置发生改变。由此，可以通过调整反光元件的位置改变镜头模组的***焦距，实现较大范围的变焦。According to the first aspect, in a possible design, the reflective element includes a curved mirror; the focal length adjustment assembly includes: a first reflective element actuator connected to the reflective element, the first reflective element actuator being connected to the reflective element The reflective element is connected; the first reflective element actuator is used to drive the first reflective element to translate along the second optical axis, so that the position of the first reflective element changes. Therefore, the system focal length of the lens module can be changed by adjusting the position of the reflective element, so as to achieve a wider range of zoom.

根据第一方面，在一种可能的设计中，该反光元件包括柔性反光镜片；该焦距调节组件包括：与该反光元件连接的第二反光元件致动器，该第二反光元件致动器与该反光元件连接；该第二反光元件致动器用于调节该反光元件的曲率。由此，可以通过调整反光元件的形状改变镜头模组的***焦距，实现较大范围的变焦。According to the first aspect, in a possible design, the reflective element includes a flexible reflective lens; the focus adjustment assembly includes: a second reflective element actuator connected to the reflective element, the second reflective element actuator being connected to The reflective element is connected; the second reflective element actuator is used to adjust the curvature of the reflective element. Therefore, the system focal length of the lens module can be changed by adjusting the shape of the reflective element, so as to achieve a wider range of zoom.

根据第一方面，在一种可能的设计中，该镜头模组还包括：防抖组件，该防抖组件与该反光元件或该分光元件连接，该防抖组件用于对光束进行抖动补偿。由此，与现有技术中通过驱动透镜组运动实现防抖相比，透镜组的尺寸较大，且透镜组中各镜片排布位置固定，需要驱动整个透镜组，难以实现光学防抖，本实施例中设有反光元件和分光元件，只需要驱动反光元件或该分光元件即可实现防抖，便于控制。According to the first aspect, in a possible design, the lens module further includes: an anti-shake assembly, the anti-shake assembly is connected to the reflective element or the light splitting element, and the anti-shake assembly is used to perform jitter compensation for the light beam. Therefore, compared with the prior art to realize anti-shake by driving the movement of the lens group, the size of the lens group is larger, and the arrangement position of each lens in the lens group is fixed, and the entire lens group needs to be driven, which is difficult to achieve optical anti-shake. In the embodiment, a reflective element and a light-splitting element are provided, and it is only necessary to drive the reflective element or the light-splitting element to realize anti-shake, which is convenient for control.

根据第一方面，在一种可能的设计中，该防抖组件包括：第三反光元件致动器；该第三反光元件致动器与该反光元件连接，该第三反光元件致动器用于驱动该反光元件沿该第二光轴和第一转动轴平移或绕该第二光轴和该第一转动轴转动，以对该光束进行抖动补偿，其中，该第一转动轴垂直于该第一光轴和该第二光轴。由此，可以通过调整反光元件的位置或角度实现光学防抖，便于控制。According to the first aspect, in a possible design, the anti-shake assembly includes: a third reflective element actuator; the third reflective element actuator is connected to the reflective element, and the third reflective element actuator is used for Drive the reflective element to translate along the second optical axis and the first rotation axis or rotate around the second optical axis and the first rotation axis to compensate for the jitter of the light beam, wherein the first rotation axis is perpendicular to the first rotation axis. an optical axis and the second optical axis. Therefore, optical image stabilization can be achieved by adjusting the position or angle of the reflective element, which is convenient for control.

根据第一方面，在一种可能的设计中，该防抖组件与该分光元件连接，该防抖组件包括：分光元件致动器；该分光元件致动器与该分光元件连接，该分光元件致动器用于驱动该分光元件沿该第二光轴或该第一转动轴平移，或绕该第二光轴和该第一转动轴转动转动，以对该光束进行抖动补偿，其中，该第一转动轴垂直于该第一光轴和该第二光轴。由此，可以通过调整分光元件的位置或角度实现光学防抖，便于控制。According to the first aspect, in a possible design, the anti-shake assembly is connected to the light splitting element, and the anti-shake assembly includes: a light splitting element actuator; the light splitting element actuator is connected to the light splitting element, and the light splitting element The actuator is used to drive the light splitting element to translate along the second optical axis or the first rotation axis, or to rotate and rotate around the second optical axis and the first rotation axis, so as to compensate for the jitter of the light beam, wherein the first A rotation axis is perpendicular to the first optical axis and the second optical axis. In this way, optical image stabilization can be achieved by adjusting the position or angle of the spectroscopic element, which is convenient for control.

根据第一方面，在一种可能的设计中，该分光元件底部设有吸光材料，所述吸光材料用于吸收该第一透射光束。由此，减小了第一透射光束的反射，避免被反射的第一透射光束干扰成像，提高了***的成像质量。According to the first aspect, in a possible design, a light absorbing material is provided at the bottom of the light splitting element, and the light absorbing material is used for absorbing the first transmitted light beam. Therefore, the reflection of the first transmission beam is reduced, the reflected first transmission beam is prevented from interfering with imaging, and the imaging quality of the system is improved.

本申请的第二方面，提供一种摄像模组，其特征在于，包括图像传感器，以及如上所述的镜头模组，所述图像传感器设置在所述分光元件远离所述反光元件的一侧，所述图像传感器用于接收所述摄像模组的第一透射光束，并将所述第一透射光束包括的光信号转换为电信号；其中，所述分光元件的物侧、所述分光元件与所述反光元件之间、或所述分光元件与所述图像传感器之间至少一个位置设有所述透镜组。上述镜头模组具有与前述实施例提供的摄像模组相同的技术效果，此处不再赘述。A second aspect of the present application provides a camera module, which is characterized by comprising an image sensor and the above-mentioned lens module, wherein the image sensor is disposed on a side of the light splitting element away from the reflective element, The image sensor is used to receive the first transmitted light beam of the camera module, and convert the optical signal included in the first transmitted light beam into an electrical signal; wherein the object side of the light splitting element, the light splitting element and the The lens group is provided at at least one position between the light-reflecting elements or between the light-splitting element and the image sensor. The above-mentioned lens module has the same technical effect as the camera module provided by the foregoing embodiments, and details are not repeated here.

本申请的第三方面，提供一种终端，其特征在于，包括显示屏，以及如上所述的镜头；该显示屏具有显示面以及远离该显示面板的背面；该镜头位于该显示屏的背面；或者，该显示屏上开设有安装孔，该镜头位于该安装孔内。上述电子设备具有与前述实施例提供的摄像模组相同的技术效果，此处不再赘述。According to a third aspect of the present application, a terminal is provided, which is characterized in that it includes a display screen and the above-mentioned lens; the display screen has a display surface and a back side away from the display panel; the lens is located on the back side of the display screen; Alternatively, the display screen is provided with a mounting hole, and the lens is located in the mounting hole. The above electronic device has the same technical effect as the camera module provided in the foregoing embodiment, and details are not described herein again.

附图说明Description of drawings

图1为本申请实施例提供的终端的结构示意图；FIG. 1 is a schematic structural diagram of a terminal provided by an embodiment of the present application;

图2a为本申请实施例提供的一种摄像模组的设置方式示意图；FIG. 2a is a schematic diagram of a setting mode of a camera module provided by an embodiment of the present application;

图2b为本申请实施例提供的另一种摄像模组的设置方式示意图；FIG. 2b is a schematic diagram of another setting mode of the camera module provided by the embodiment of the application;

图2c为本申请实施例提供的另一种摄像模组的设置方式示意图；FIG. 2c is a schematic diagram of another setting mode of the camera module provided by the embodiment of the present application;

图2d为图1中显示屏的一种结构示意图；Fig. 2d is a kind of structural schematic diagram of the display screen in Fig. 1;

图3a为本申请实施例提供的一种镜头模组的结构示意图；3a is a schematic structural diagram of a lens module according to an embodiment of the application;

图3b为本申请实施例提供的一种摄像模组的结构示意图；3b is a schematic structural diagram of a camera module provided by an embodiment of the application;

图3c为本申请实施例提供的一种摄像模组的结构示意图；3c is a schematic structural diagram of a camera module provided by an embodiment of the present application;

图3d为本申请实施例提供的一种摄像模组的结构示意图；3d is a schematic structural diagram of a camera module provided by an embodiment of the application;

图4为本申请实施例提供的一种摄像模组的结构示意图；4 is a schematic structural diagram of a camera module provided by an embodiment of the present application;

图5为本申请实施例提供的一种分光元件的结构示意图；FIG. 5 is a schematic structural diagram of a spectroscopic element provided by an embodiment of the present application;

图6a为本申请实施例提供的另一种分光元件的结构示意图；6a is a schematic structural diagram of another spectroscopic element provided by an embodiment of the present application;

图6b为图6a中分光元件的分解结构示意图；Fig. 6b is a schematic diagram of the exploded structure of the spectroscopic element in Fig. 6a;

图7为本申请实施例提供的一种透镜组的结构示意图；7 is a schematic structural diagram of a lens group provided by an embodiment of the present application;

图8为本申请实施例提供的反光元件的移动过程示意图；FIG. 8 is a schematic diagram of a movement process of a reflective element provided by an embodiment of the present application;

图9为本申请实施例提供的反光元件的形变示意图；FIG. 9 is a schematic diagram of the deformation of the reflective element provided by the embodiment of the present application;

图10a为示例一中摄像模组的结构示意图；10a is a schematic structural diagram of a camera module in Example 1;

图10b为本申请实施例提供的一种变焦透镜的结构示意图；10b is a schematic structural diagram of a zoom lens provided by an embodiment of the application;

图10c为图10b中变焦透镜的工作状态示意图；Fig. 10c is a schematic view of the working state of the zoom lens in Fig. 10b;

图10d为本申请实施例提供的另一种变焦透镜的结构示意图；10d is a schematic structural diagram of another zoom lens provided by an embodiment of the application;

图10e为图10d中变焦透镜的工作状态示意图；Figure 10e is a schematic diagram of the working state of the zoom lens in Figure 10d;

图11a为本申请实施例提供的一种反光元件的结构示意图；11a is a schematic structural diagram of a reflective element provided by an embodiment of the present application;

图11b为本申请实施例提供的一种反光元件的结构示意图；FIG. 11b is a schematic structural diagram of a reflective element provided by an embodiment of the present application;

图11c为本申请实施例提供的一种反光元件的结构示意图；11c is a schematic structural diagram of a reflective element provided by an embodiment of the present application;

图11d为本申请实施例提供的一种反光元件的结构示意图；FIG. 11d is a schematic structural diagram of a reflective element provided by an embodiment of the present application;

图12a为示例一中摄像模组在不同摄像模式下的工作状态示意图；12a is a schematic diagram of the working state of the camera module in Example 1 under different camera modes;

图12b为示例一中摄像模组的等效光路图；12b is an equivalent optical path diagram of the camera module in Example 1;

图13为示例二中摄像模组的结构示意图；13 is a schematic structural diagram of a camera module in Example 2;

图14为示例二中摄像模组在不同摄像模式下的工作状态示意图；14 is a schematic diagram of the working state of the camera module in Example 2 under different camera modes;

图15为示例三中摄像模组的结构示意图；15 is a schematic structural diagram of a camera module in Example 3;

图16为示例四中摄像模组的结构示意图；16 is a schematic structural diagram of a camera module in Example 4;

图17为示例五中一种分光元件的分光过程示意图；17 is a schematic diagram of a spectroscopic process of a spectroscopic element in Example 5;

图18为示例六中另一种分光元件的分光过程示意图。FIG. 18 is a schematic diagram of the spectroscopic process of another spectroscopic element in Example 6. FIG.

具体实施方式detailed description

为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings.

以下，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义可以是两个或两个以上。Hereinafter, the terms "first", "second", etc. are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of this application, unless stated otherwise, "plurality" may mean two or more.

此外，本申请中，“上”、“下”、“左”、“右”等方位术语可以包括但不限于相对附图中的部件示意置放的方位来定义的，应当理解到，这些方向性术语可以是相对的概念，它们用于相对于的描述和澄清，其可以根据附图中部件所放置的方位的变化而相应地发生变化。In addition, in this application, the terms "upper", "lower", "left", "right" and other orientations may include, but are not limited to, the orientations relative to the schematic placement of the components in the drawings. It should be understood that these orientations The terminology can be a relative concept, and they are used for relative description and clarification, which can change correspondingly according to the change of the orientation in which the components are placed in the figures.

在本申请中，除非另有明确的规定和限定，术语“连接”应做广义理解，例如，“连接”可以是连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连。In this application, unless otherwise expressly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a connection, a detachable connection, or an integrated body; it can be directly connected, or it can be Indirectly connected through an intermediary.

以下，对本申请实施例可能出现的术语进行解释。Hereinafter, terms that may appear in the embodiments of the present application are explained.

光焦度：等于像方光束会聚度与物方光束会聚度之差，可以表征光学***偏折光线的能力。Optical power: equal to the difference between the convergence of the image-side beam and the object-side beam convergence, which can characterize the ability of the optical system to deflect light.

光学防抖：是指在拍照机或者其他类似成像仪器中，通过光学元器件的设置，例如镜头设置，来避免或者减少捕捉光学信号过程中出现的仪器抖动现象，从而提高成像质量。通常使用致动器驱动镜头或者传感器进行位置补偿，从而减弱抖动对成像画面的影响。Optical image stabilization: In cameras or other similar imaging instruments, the settings of optical components, such as lens settings, are used to avoid or reduce the phenomenon of instrument shake in the process of capturing optical signals, thereby improving imaging quality. Usually, an actuator is used to drive the lens or sensor for position compensation, so as to reduce the influence of shaking on the image.

本申请实施例提供一种终端。该终端可以为平板电脑、手机、电子阅读器、遥控器、个人计算机(personal computer，PC)、笔记本电脑、个人数字助理(personal digital assistant，PDA)、车载设备、网络电视、可穿戴设备、电视机等具有摄像头的产品。本申请实施例对上述终端的具体形式不做特殊限制。以下实施例为了方便说明，均是以终端为手机为例进行的举例说明。An embodiment of the present application provides a terminal. The terminal can be a tablet computer, a mobile phone, an electronic reader, a remote control, a personal computer (PC), a notebook computer, a personal digital assistant (PDA), a vehicle-mounted device, an Internet TV, a wearable device, a TV Cameras and other products with cameras. This embodiment of the present application does not specifically limit the specific form of the above-mentioned terminal. For the convenience of description, the following embodiments are all exemplified by taking the terminal as a mobile phone as an example.

如图1所示，终端1包括显示屏2、中框3、壳体(或者称为电池盖、后壳)4以及盖板5。As shown in FIG. 1 , the terminal 1 includes a display screen 2 , a middle frame 3 , a casing (or referred to as a battery cover or a rear casing) 4 and a cover plate 5 .

显示屏2具有能够看到显示画面的显示面a1和与上述显示面a1相对设置的背面a2，显示屏2的背面a2靠近中框3，盖板5设置在显示屏2的显示面a1。The display screen 2 has a display surface a1 for viewing the display screen and a back surface a2 opposite to the above-mentioned display surface a1 .

在本申请的一种可能的实施例中，显示屏2为有机发光二极管(organic lightemitting diode，OLED)显示屏。由于OLED显示屏中每个发光子像素内设置有电致发光层，所以可以使得OLED显示屏在接收到工作电压后，实现自发光。In a possible embodiment of the present application, the display screen 2 is an organic light emitting diode (organic light emitting diode, OLED) display screen. Since each light-emitting sub-pixel in the OLED display screen is provided with an electroluminescent layer, the OLED display screen can realize self-luminescence after receiving the working voltage.

在本申请的另一些实施例中，上述显示屏2可以是液晶显示屏(liquid crystal display，LCD)。在此情况下，上述终端1还可以包括用于向该液晶显示屏提供光源的背光模组(back light unit，BLU)。In other embodiments of the present application, the above-mentioned display screen 2 may be a liquid crystal display (liquid crystal display, LCD). In this case, the above-mentioned terminal 1 may further include a backlight unit (backlight unit, BLU) for providing a light source to the liquid crystal display screen.

盖板5位于显示屏2远离中框3一侧，盖板5例如可以是盖板玻璃(cover glass，CG)，该盖板玻璃可以具有一定的韧性。The cover plate 5 is located on the side of the display screen 2 away from the middle frame 3. The cover plate 5 may be, for example, a cover glass (CG), and the cover glass may have a certain degree of toughness.

中框3位于显示屏2和壳体4之间，中框3远离显示屏2的表面用于安装电池、印刷电路板(printed circuit board，PCB)、摄像头(camera)、天线等内部元件。壳体4与中框3盖合后，上述内部元件位于壳体4与中框3之间。The middle frame 3 is located between the display screen 2 and the housing 4, and the surface of the middle frame 3 away from the display screen 2 is used to install internal components such as batteries, printed circuit boards (PCBs), cameras (cameras), and antennas. After the casing 4 and the middle frame 3 are closed, the above-mentioned internal components are located between the casing 4 and the middle frame 3 .

在此基础上，终端1还包括用于实现图像拍摄的摄像模组，该摄像模组设置在显示屏2的表面上，可以与PCB板电连接。On this basis, the terminal 1 further includes a camera module for capturing images, the camera module is disposed on the surface of the display screen 2 and can be electrically connected to the PCB board.

在本申请的一些实施例中，上述摄像模组可以作为后置摄像头。在此情况下，如图2a所示，摄像模组6可以位于显示屏2的背面a2。并且，该摄像模组6的受光面(用于接收光线的表面)可以远离显示屏2的背面a2。In some embodiments of the present application, the above-mentioned camera module can be used as a rear camera. In this case, as shown in FIG. 2 a , the camera module 6 can be located on the back a2 of the display screen 2 . Moreover, the light-receiving surface (the surface for receiving light) of the camera module 6 can be far away from the back a2 of the display screen 2 .

或者，在本申请的另一些实施例中，上述摄像模组6可以作为前置摄像头。在此情况下，如图2b所示，摄像模组6可以位于显示屏2的背面a2。并且，摄像模组6的受光面可以朝向显示屏2的背面a2。基于此，为了使得光线能够入射至摄像模组6的受光面，该显示屏2在对应摄像模组6的位置可以具有透光区201。Alternatively, in other embodiments of the present application, the above-mentioned camera module 6 can be used as a front camera. In this case, as shown in FIG. 2 b , the camera module 6 may be located on the back a2 of the display screen 2 . Moreover, the light-receiving surface of the camera module 6 may face the back a2 of the display screen 2 . Based on this, in order to enable light to enter the light-receiving surface of the camera module 6 , the display screen 2 may have a light-transmitting area 201 at a position corresponding to the camera module 6 .

可选的，在本申请的另一些实施例中，上述摄像模组6可以作为前置摄像头。在此情况下，如图2c所示，可以显示屏2上设置安装区202，摄像模组6位于安装区202内。并且，摄像模组6的受光面可以与显示屏2的显示面a1位于同一侧。Optionally, in other embodiments of the present application, the above-mentioned camera module 6 may be used as a front camera. In this case, as shown in FIG. 2 c , an installation area 202 may be provided on the display screen 2 , and the camera module 6 is located in the installation area 202 . Moreover, the light-receiving surface of the camera module 6 may be located on the same side as the display surface a1 of the display screen 2 .

关于摄像模组6的设置区域，如图2d所示，显示屏2划分出显示区A。Regarding the setting area of the camera module 6 , as shown in FIG. 2d , the display screen 2 is divided into a display area A.

在一种可能的实施例中，显示屏2还包括位于显示区A周边的周边区B。在另一种可能的实施例中，显示屏2没有周边区B。In a possible embodiment, the display screen 2 further includes a peripheral area B located around the display area A. In another possible embodiment, the display screen 2 has no peripheral area B.

其中，不对显示区A和周边区B的相对位置关系和形状进行限定，本申请实施例中以周边区B围绕显示区A一周为例进行示意。The relative positional relationship and shape of the display area A and the peripheral area B are not limited. In the embodiments of the present application, the peripheral area B surrounds the display area A as an example for illustration.

可以理解的是，终端1包括的摄像模组6，通过采集透过显示屏2射向该摄像模组6的光线来实现具体功能。而显示屏2只有通过显示区A才透光，基于此，为了使得光线能够入射至摄像模组6的受光面，如图2d所示，摄像模组6在显示屏2上的正投影位于显示屏2的显示区A中。It can be understood that, the camera module 6 included in the terminal 1 realizes specific functions by collecting the light rays that are emitted to the camera module 6 through the display screen 2 . The display screen 2 only transmits light through the display area A. Based on this, in order to enable the light to enter the light-receiving surface of the camera module 6, as shown in FIG. 2d, the orthographic projection of the camera module 6 on the display screen 2 is located in the display in display area A of screen 2.

以下对上述摄像模组6的结构进行举例说明。The structure of the above-mentioned camera module 6 will be exemplified below.

在本申请一些实施例中，摄像模组6包括：镜头模组600。In some embodiments of the present application, the camera module 6 includes: a lens module 600 .

如图3a所示，镜头模组600包括：透镜组60，以及沿第一光轴O依次设置的反光元件62和分光元件61。As shown in FIG. 3 a , the lens module 600 includes: a lens group 60 , and a light-reflecting element 62 and a light-splitting element 61 arranged along the first optical axis O in sequence.

其中，透镜组60为一个或多个，可以将该一个或多个透镜组60分别沿第二光轴O’设置在所述分光元件61的物侧，或沿第一光轴O设置在所述分光元件61与所述反光元件62之间，或沿第一光轴O设置在所述分光元件61远离所述反光元件62的一侧。Wherein, there are one or more lens groups 60, and the one or more lens groups 60 may be disposed on the object side of the light splitting element 61 along the second optical axis O', or disposed along the first optical axis O on the object side of the light splitting element 61, respectively. between the light-splitting element 61 and the light-reflecting element 62 , or along the first optical axis O, on the side of the light-splitting element 61 away from the light-reflecting element 62 .

该分光元件61包括：分光面，该分光面与该第一光轴之间的夹角大于0°且小于90°。The light-splitting element 61 includes: a light-splitting surface, and the included angle between the light-splitting surface and the first optical axis is greater than 0° and less than 90°.

该分光元件61用于对物侧沿第二光轴O’入射至分光元件61的光束进行第一次分光，形成被分光元件61反射的第一反射光束，并将该第一反射光束沿该第一光轴O反射至该反光元件62，该反光元件62用于将该第一反射光束反射至该分光元件61，该分光元件61还用于对该反光元件62反射回来的第一反射光束进行第二次分光，形成穿过该分光面的第二透射光束。The beam splitting element 61 is used for first splitting the light beam incident on the object side along the second optical axis O' to the beam splitting element 61 to form a first reflected beam reflected by the beam splitting element 61 . The first optical axis O is reflected to the reflective element 62 , the reflective element 62 is used to reflect the first reflected light beam to the light splitting element 61 , and the light splitting element 61 is also used to reflect the first reflected light beam back from the reflective element 62 A second beam splitting is performed to form a second transmitted light beam passing through the beam splitting surface.

本申请实施例提供的摄像模组，将分光元件和该反光元件组合，可以改变光线的传输路径，采用潜望和折返的光路设计，实现光路折叠，有利于减小摄像模组的尺寸，实现了终端的小型化。In the camera module provided by the embodiment of the present application, the light splitting element and the reflective element are combined to change the transmission path of light, and the optical path design of periscope and return is adopted to realize optical path folding, which is beneficial to reduce the size of the camera module and realize miniaturization of the terminal.

本申请另一些实施例中，如图3b、图3c、图3d、图4所示，摄像模组6还包括：图像传感器63。In other embodiments of the present application, as shown in FIG. 3 b , FIG. 3 c , FIG. 3 d , and FIG. 4 , the camera module 6 further includes: an image sensor 63 .

其中，图像传感器63沿所述第一光轴O设置在所述分光元件61远离所述反光元件62的一侧，图像传感器63用于接收所述摄像模组6的第一透射光束。The image sensor 63 is disposed along the first optical axis O on the side of the light splitting element 61 away from the light reflecting element 62 , and the image sensor 63 is used to receive the first transmitted light beam of the camera module 6 .

其中，所述分光元件61的物侧、所述分光元件61与所述反光元件62之间、或所述分光元件61与所述图像传感器6之间至少一个位置设有所述透镜组60。The lens group 60 is provided at at least one position on the object side of the beam splitting element 61 , between the beam splitting element 61 and the reflective element 62 , or between the beam splitting element 61 and the image sensor 6 .

透镜组60可以包括一个或多个镜片，可以将接收到的成像光束传输至图像传感器63，该透镜组60还可以对接收到的成像光束进行一定的处理，例如改变光照度、消色差等处理。The lens group 60 can include one or more mirrors, and can transmit the received imaging beam to the image sensor 63. The lens group 60 can also perform certain processing on the received imaging beam, such as changing the illuminance and achromatic processing.

图像传感器63是一种具有光电转换功能的器件，能够将图像采集区域上采集的成像光束的光信号转换为与光信号成相应比例关系的电信号，该图像传感器63可以为以电荷耦合器件(charged coupled device，CCD)构成的CCD图像传感器63或以互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)构成的CMOS图像传感器63。The image sensor 63 is a device with a photoelectric conversion function, which can convert the optical signal of the imaging beam collected on the image acquisition area into an electrical signal that is proportional to the optical signal. The image sensor 63 can be a charge-coupled device ( The CCD image sensor 63 composed of charged coupled device (CCD) or the CMOS image sensor 63 composed of complementary metal oxide semiconductor (CMOS).

图像传感器63例如具有图像采集区域，图像传感器63可以通过图像采集区域(也称感光区域或感光面)采集接收到的成像光束。For example, the image sensor 63 has an image acquisition area, and the image sensor 63 can acquire the received imaging light beam through the image acquisition area (also called a photosensitive area or a photosensitive surface).

需要说明的是，由于我们拍照时，被拍摄的物体与摄像模组6的距离不总是相同的，例如给人拍照，拍摄全身照时，被拍摄的物体与摄像模组6的距离远，照拍摄半身照时，被拍摄的物体与摄像模组6的距离近。也就是说，物距不总是固定的，这样，要想照得到清晰的像，就必须随着物距的不同而改变摄像模组6的***焦距，这个改变的过程就是我们平常说的“调焦”。It should be noted that when we take pictures, the distance between the object to be photographed and the camera module 6 is not always the same. When taking a half-length photo, the distance between the photographed object and the camera module 6 is close. That is to say, the object distance is not always fixed. In this way, in order to obtain a clear image, the system focal length of the camera module 6 must be changed according to the difference of the object distance. coke".

其中，被拍摄的物体与摄像模组6的距离较远时，摄像模组6的焦距较长，为了实现较长的焦距，一种方式是采用较多镜片组合，然而，多镜片组合的摄像模组，整体光路比较长，使得摄像模组整体尺寸大，会占用较大的设备空间。Among them, when the distance between the object to be photographed and the camera module 6 is far, the focal length of the camera module 6 is longer. In order to achieve a longer focal length, one way is to use more lens combinations. The overall optical path of the module is relatively long, which makes the overall size of the camera module large and occupies a large equipment space.

为此，本申请实施例提供一种改进的摄像模组。To this end, the embodiments of the present application provide an improved camera module.

如图3b、图3c、图3d所示，该摄像模组还包括：分光元件61和反光元件62。所述分光元件61和所述反光元件62组合，可以用于折叠光路，无需多镜片组合，减小摄像模组尺寸。As shown in FIG. 3 b , FIG. 3 c , and FIG. 3 d , the camera module further includes: a light splitting element 61 and a light reflecting element 62 . The combination of the light-splitting element 61 and the reflective element 62 can be used to fold the optical path, without the need for a combination of multiple lenses, thereby reducing the size of the camera module.

其中，分光元件61可以采用半透半反功能的分光棱镜，该分光棱镜例如具有分光面611，光线每次经过分光面611，会有一部分的光线发生反射，另一部分光线透射，发生反射的光线光路被改变。The beam splitting element 61 can be a beam splitting prism with a transflective function, for example, the beam splitting prism has a beam splitting surface 611. Each time the light passes through the beam splitting surface 611, a part of the light will be reflected, and the other part of the light will be transmitted, and the reflected light will occur. The light path is changed.

所述反光元件62、所述分光元件61、所述图像传感器63例如沿第一光轴O依次设置，所述分光元件61位于所述反光元件62和所述图像传感器63之间，所述第一光轴O与所述分光面611之间的夹角大于0°且小于90°。The light-reflecting element 62 , the light-splitting element 61 , and the image sensor 63 are arranged in sequence along the first optical axis O, for example, the light-splitting element 61 is located between the light-reflecting element 62 and the image sensor 63 , and the first The included angle between an optical axis O and the beam splitting surface 611 is greater than 0° and less than 90°.

如图3b所示，工作时，所述分光元件61可以用于对沿第二光轴O’入射至分光面611的光束进行第一次分光，形成穿过所述分光面611的第一透射光束和被所述分光面611反射的第一反射光束，使得第一次分光形成的第一反射光束可以沿该第一光轴O传输至所述反光元件62，所述反光元件62用于将所述第一反射光束沿所述第二光轴O反射至所述分光面，所述分光元件61还用于对所述反光元件62反射回来的第一反光光束进行第二次分光，形成穿过所述分光面611的第二透射光束和被所述分光面611反射的第二反射光束，并将第二透射光束沿所述第二光轴O传输至所述图像传感器63。As shown in FIG. 3 b , during operation, the beam splitting element 61 can be used to perform the first splitting of the light beam incident on the beam splitting surface 611 along the second optical axis O′ to form a first transmission through the beam splitting surface 611 The light beam and the first reflected light beam reflected by the light splitting surface 611, so that the first reflected light beam formed by the first splitting can be transmitted to the light reflecting element 62 along the first optical axis O, and the light reflecting element 62 is used to The first reflected light beam is reflected to the light splitting surface along the second optical axis O, and the light splitting element 61 is also used for the second splitting of the first reflected light beam reflected by the light reflecting element 62 to form a penetrating beam. The second transmitted light beam passing through the light splitting surface 611 and the second reflected light beam reflected by the light splitting surface 611 are transmitted to the image sensor 63 along the second optical axis O.

该分光元件61可以改变光线的传输路径，对沿着第二光轴O’传输的光束进行分光，使得部分光束沿第一光轴O传输，形成潜望式的光路形式，改变了光路的传输方向。该反光元件62可以再次改变光线的传输方向，使得沿第一光轴O传输的光线产生反射，进而使得光线再次通过分光元件61，实现光路的折叠，最终在传感器上成像。The light splitting element 61 can change the transmission path of the light, and split the light beam transmitted along the second optical axis O', so that part of the light beam is transmitted along the first optical axis O, forming a periscope optical path form, changing the transmission of the optical path direction. The reflective element 62 can change the transmission direction of the light again, so that the light transmitted along the first optical axis O is reflected, so that the light passes through the light splitting element 61 again to realize the folding of the optical path, and finally image on the sensor.

本申请实施例提供的摄像模组，该分光元件61和该反光元件62组合，可以改变光线的传输路径，采用潜望和折返的光路设计，实现光路折叠，有利于减小摄像模组的尺寸，实现了终端的小型化。In the camera module provided by the embodiment of the present application, the combination of the light splitting element 61 and the reflective element 62 can change the transmission path of light, and the optical path design of periscope and return is adopted to realize the folding of the optical path, which is conducive to reducing the size of the camera module , realizing the miniaturization of the terminal.

本申请实施例对该透镜组60的数量和位置不做限制。该透镜组60可以是1个或多个，所述分光元件61的物侧、所述分光元件61与所述反光元件62之间、或所述分光元件61与所述图像传感器63之间至少一个位置设有所述透镜组60。The embodiment of the present application does not limit the number and position of the lens group 60 . The lens group 60 may be one or more, at least on the object side of the beam splitting element 61 , between the beam splitting element 61 and the reflective element 62 , or between the beam splitting element 61 and the image sensor 63 . The lens group 60 is provided at one position.

在本申请一些实施例中，透镜组60为1个。如图3b所示，透镜组60设置在所述分光元件61的物侧，如图3c所示，透镜组60可以设置在所述分光元件61与所述反光元件62之间，或如图3d所示，透镜组60可以设置在所述分光元件61与所述图像传感器63之间。In some embodiments of the present application, there is one lens group 60 . As shown in FIG. 3b, the lens group 60 is arranged on the object side of the light splitting element 61. As shown in FIG. 3c, the lens group 60 can be arranged between the light splitting element 61 and the light reflecting element 62, or as shown in FIG. As shown, the lens group 60 may be disposed between the light splitting element 61 and the image sensor 63 .

在本申请另一些实施例中，透镜组60为多个，多个透镜组60可以分别设置在所述分光元件61的物侧、所述分光元件61与所述反光元件62之间、或所述分光元件61与所述图像传感器63之间。In other embodiments of the present application, there are multiple lens groups 60 , and the multiple lens groups 60 may be respectively disposed on the object side of the light splitting element 61 , between the light splitting element 61 and the light reflecting element 62 , or on all sides of the light splitting element 61 . between the spectroscopic element 61 and the image sensor 63 .

示例性的，如图4所示，该透镜组60为3个，所述分光元件61的物侧设有1个所述透镜组60、所述分光元件61与所述反光元件62之间设有1个所述透镜组60、所述分光元件61与所述图像传感器63之间设有1个该透镜组60。其中，所述分光元件61的物侧的透镜组60沿第二光轴O’设置，所述分光元件61与所述反光元件62之间的透镜组60，以及所述分光元件61与所述图像传感器63之间的透镜组60与所述图像传感器63和所述分光元件61位于第一光轴O上。Exemplarily, as shown in FIG. 4 , there are three lens groups 60 , one lens group 60 is provided on the object side of the light splitting element 61 , and one lens group 60 is provided between the light splitting element 61 and the reflective element 62 . There is one lens group 60 , and one lens group 60 is provided between the spectroscopic element 61 and the image sensor 63 . The lens group 60 on the object side of the light splitting element 61 is arranged along the second optical axis O', the lens group 60 between the light splitting element 61 and the light reflecting element 62, and the light splitting element 61 and the The lens group 60 between the image sensors 63 is located on the first optical axis O with the image sensor 63 and the light splitting element 61 .

本申请实施例对所述分光面611与所述第一光轴O之间的夹角不做限制，在本申请一些实施例中，如图5、图6a所示，所述分光面611与所述第一光轴O之间的夹角α为45°，所述分光面611与所述第二光轴O之间的夹角β为45°，所述第一光轴O和所述第二光轴O’之间的夹角θ为90°，使得沿第二光轴O’入射的光束可以沿第一光轴O反射。This embodiment of the present application does not limit the angle between the light splitting surface 611 and the first optical axis O. In some embodiments of the present application, as shown in FIG. 5 and FIG. 6 a , the light splitting surface 611 and the first optical axis O are not limited. The angle α between the first optical axes O is 45°, the angle β between the beam splitting surface 611 and the second optical axis O is 45°, the first optical axis O and the The included angle θ between the second optical axes O' is 90°, so that the light beam incident along the second optical axis O' can be reflected along the first optical axis O.

需要说明的是，所述分光面611与所述第一光轴O之间的夹角、以及所述分光面611与所述第二光轴O之间的夹角的角度可以存在误差，误差范围可以是±5°，这些均属于本申请的保护范围。It should be noted that there may be errors in the angle between the beam splitting surface 611 and the first optical axis O, and the angle between the beam splitting surface 611 and the second optical axis O. The range can be ±5°, which all belong to the protection scope of the present application.

本申请实施例对该分光元件61的具体结构不做限制。在本申请一些实施例中，如图5所示，所述分光元件61包括透明平板，所述透明平板包括：分光面611，所述分光面611上例如设有光学膜层，所述光学膜层用于对通过所述分光面611的光束进行分光，使得部分光束发生反射，另一部分光束透射。This embodiment of the present application does not limit the specific structure of the spectroscopic element 61 . In some embodiments of the present application, as shown in FIG. 5 , the light-splitting element 61 includes a transparent flat plate, and the transparent flat plate includes: a light-splitting surface 611 , for example, an optical film layer is provided on the light-splitting surface 611 , and the optical film The layer is used to split the light beam passing through the light splitting surface 611, so that part of the light beam is reflected and another part of the light beam is transmitted.

由此，该分光元件61采用透明平板结构，结构简单。Therefore, the light splitting element 61 adopts a transparent flat plate structure, and the structure is simple.

然而，当分光元件61的分光面与第一光轴O的夹角大于0°且小于90°时，上述分光元件在摄像模组中组装困难，且光学膜层暴露在空气中，容易损坏和腐蚀，降低了分光元件61的机械、化学稳定性。However, when the included angle between the beam splitting surface of the beam splitting element 61 and the first optical axis O is greater than 0° and less than 90°, it is difficult to assemble the above beam splitting element in the camera module, and the optical film layer is exposed to the air, which is easily damaged and damaged. Corrosion reduces the mechanical and chemical stability of the spectroscopic element 61 .

在本申请另一些实施例中，所述分光元件61包括：至少两个直角棱镜，所述至少两个直角棱镜胶合组成立方体结构，所述至少两个直角棱镜的接触面为分光面611，所述分光面611上例如设有光学膜层，所述光学膜层用于对通过所述分光面611的光束进行分光，使得部分光束发生反射，另一部分光束透射。In other embodiments of the present application, the light splitting element 61 includes: at least two right-angle prisms, the at least two right-angle prisms are glued to form a cube structure, and the contact surface of the at least two right-angle prisms is the light splitting surface 611, so the For example, an optical film layer is provided on the light splitting surface 611 , and the optical film layer is used to split the light beams passing through the light beam splitting surface 611 , so that part of the light beams are reflected and another part of the light beams are transmitted.

其中，如图6a、图6b所示，分光元件61包括：第一直角棱镜610和第二直角棱镜612，第一直角棱镜610和第二直角棱镜612的斜面与直角面夹角均为45°，第一直角棱镜610的斜面上例如设有所述光学膜层，第一直角棱镜610和第二直角棱镜612的斜面胶合组成立方体结构的分光棱镜。Wherein, as shown in FIGS. 6a and 6b , the light splitting element 61 includes: a first right angle prism 610 and a second right angle prism 612, and the angle between the inclined plane and the right angle plane of the first right angle prism 610 and the second right angle prism 612 is both 45° For example, the optical film layer is provided on the inclined surface of the first right angle prism 610 , and the inclined surfaces of the first right angle prism 610 and the second right angle prism 612 are glued together to form a cube-shaped beam splitter prism.

由此，该分光元件61采用立方体结构，在摄像模组中组装更方便，并且由于光学膜层没有暴露在空气中，不易损坏和腐蚀，因而膜层材料的机械、化学稳定性更高。Therefore, the spectroscopic element 61 adopts a cube structure, which is more convenient to assemble in the camera module, and because the optical film layer is not exposed to the air and is not easily damaged and corroded, the mechanical and chemical stability of the film layer material is higher.

本申请实施例对该光学膜层的材质不做限制，在本申请一些实施例中，该光学膜层为偏振分光膜，所述光学模组6还包括：波片，所述波片设置在所述反光元件62和所述分光元件61之间。The embodiments of the present application do not limit the material of the optical film layer. In some embodiments of the present application, the optical film layer is a polarizing beam splitting film, and the optical module 6 further includes: a wave plate, and the wave plate is arranged on the between the light-reflecting element 62 and the light-splitting element 61 .

所述偏振分光膜用于将入射的非偏振光束分成两束偏振方向不同的偏振光，其中一束偏振光穿过所述偏振分光膜，另一束偏振光被反射，所述波片用于改变被反射的偏振光的偏振方向，使得所述被反射的偏振光经反射元件反射后能再次通过所述偏振分光膜。The polarizing beam splitter film is used to divide the incident non-polarized light beam into two polarized light beams with different polarization directions, wherein one beam of polarized light passes through the polarized beam splitter film, and the other beam of polarized light is reflected, and the wave plate is used for The polarization direction of the reflected polarized light is changed, so that the reflected polarized light can pass through the polarization beam splitting film again after being reflected by the reflective element.

在本申请另一些实施例中，该光学膜层包括非偏振分光膜，所述非偏振分光膜用于对入射的非偏振光束进行分光，使得部分光束透射、另一部分光束被反射。其中，非偏振分光膜可以把一束光分成光谱成分相同的两束光，即在一定的波长区域内，如可见光区内，对各波长具有相同的透射率和反射率比，其反射光和透射光呈中性。该非偏振分光膜不会丢失入射光线中的偏振光信息。In other embodiments of the present application, the optical film layer includes a non-polarized beam splitting film, the non-polarized beam splitting film is used to split the incident non-polarized light beam, so that part of the light beam is transmitted and another part of the light beam is reflected. Among them, the non-polarizing beam splitting film can divide a beam of light into two beams of light with the same spectral composition, that is, in a certain wavelength region, such as the visible light region, it has the same transmittance and reflectivity ratio for each wavelength, and its reflected light and Transmitted light is neutral. The non-polarized beam splitting film will not lose the polarized light information in the incident light.

上述实施例中，通过分光元件61和反光元件62组合，实现光路折叠，可以用于拍摄较远的物体，然而，被拍摄的物体与摄像模组6的距离较近时，摄像模组6的焦距较短，需要改变摄像模组的焦距，实现较大范围的变焦。In the above-mentioned embodiment, through the combination of the light splitting element 61 and the reflective element 62, the optical path is folded, which can be used for photographing distant objects. However, when the distance between the photographed object and the camera module 6 is relatively close, the The focal length is short, and the focal length of the camera module needs to be changed to achieve a wider range of zoom.

在本申请另一些实施例中，该分光元件底部或所述分光元件下方的壳体上设有吸光材料，该吸光材料用于吸收该第一透射光束。由此，减小了第一透射光束的反射，避免被反射的第一透射光束干扰成像，提高了***的成像质量。In other embodiments of the present application, a light-absorbing material is provided on the bottom of the light-splitting element or on a casing below the light-splitting element, and the light-absorbing material is used for absorbing the first transmitted light beam. Therefore, the reflection of the first transmission beam is reduced, the reflected first transmission beam is prevented from interfering with imaging, and the imaging quality of the system is improved.

为此，本申请实施例对上述摄像模组进行进一步改进。To this end, the embodiments of the present application further improve the above-mentioned camera module.

本申请实施例对该透镜组60的结构不做限制，在本申请一些实施例中，所述摄像模组还包括：焦距调节组件，所述焦距调节组件与所述透镜组60和所述反光元件62的至少一个连接，所述焦距调节组件用于调节所述摄像模组6的焦距。The embodiments of the present application do not limit the structure of the lens group 60. In some embodiments of the present application, the camera module further includes: a focal length adjustment component, the focal length adjustment component is connected with the lens group 60 and the reflection At least one connection of the element 62 , the focal length adjusting component is used to adjust the focal length of the camera module 6 .

如图7所示，该透镜组60例如包括：变焦透镜6002。本申请的一些实施例中，所述焦距调节组件包括：与所述变焦透镜连接的变焦透镜致动器，所述变焦透镜致动器用于调节所述变焦透镜的光焦度。As shown in FIG. 7 , the lens group 60 includes, for example, a zoom lens 6002 . In some embodiments of the present application, the focal length adjustment assembly includes: a zoom lens actuator connected to the zoom lens, and the zoom lens actuator is used to adjust the optical power of the zoom lens.

其中，变焦透镜6002可以是：液体透镜或柔性透镜。The zoom lens 6002 may be a liquid lens or a flexible lens.

在本申请的一些实施例中，变焦透镜6002包括液体透镜，可以通过改变液体表面的光焦度实现自身焦距变化。液体透镜具体可以是电润湿液体透镜、声辐射压力液体透镜、液压力驱动液体透镜、介电电泳液体透镜中的一种。In some embodiments of the present application, the zoom lens 6002 includes a liquid lens, and its focal length can be changed by changing the optical power of the liquid surface. Specifically, the liquid lens may be one of an electro-wetting liquid lens, an acoustic radiation pressure liquid lens, a hydraulic pressure-driven liquid lens, and a dielectrophoretic liquid lens.

透镜组30中采用液体透镜作为变焦透镜，其尺寸小、变焦响应快，减小了摄像模组占用空间，有利于终端设备的小型化。The liquid lens is used as the zoom lens in the lens group 30, which has small size and fast zoom response, reduces the space occupied by the camera module, and is beneficial to the miniaturization of the terminal device.

在本示例的另一些实施例中，变焦透镜6002包括柔性透镜。该柔性透镜采用柔性材料制成。工作时，可以采用变焦透镜致动器对柔性材料施加力，使其发生变形，从而改变该柔性材料的焦距。In other embodiments of this example, the zoom lens 6002 includes a flexible lens. The flexible lens is made of flexible material. During operation, a zoom lens actuator can be used to apply force to the flexible material to deform it, thereby changing the focal length of the flexible material.

其中，变焦透镜致动器可以由多种类型力驱动，例如压电驱动、机械力驱动、流体压力驱动、电磁驱动等。Among them, the zoom lens actuator may be driven by various types of forces, such as piezoelectric driving, mechanical force driving, fluid pressure driving, electromagnetic driving, and the like.

由此，透镜组30中采用柔性透镜作为变焦透镜，可以改变摄像模组的焦距，响应速度快，尺寸小，减小了摄像模组占用空间，有利于终端设备的小型化。Therefore, the flexible lens is used as the zoom lens in the lens group 30, which can change the focal length of the camera module, has fast response speed, and is small in size, reduces the space occupied by the camera module, and is beneficial to the miniaturization of the terminal device.

需要说明的是，实际设计中，该透镜组60还包括：定焦透镜6001。此外，透镜组60还可以包括用于保护镜组的平板玻璃、用于过滤特定波长光的滤光片、用于消除杂光的遮光片等，但这些不改变光线传播路径。It should be noted that, in the actual design, the lens group 60 further includes: a fixed-focus lens 6001 . In addition, the lens group 60 may also include a flat glass for protecting the lens group, a filter for filtering light of a specific wavelength, a light shielding sheet for eliminating stray light, etc., but these do not change the light propagation path.

然而，上述通过变焦透镜实现变焦，当变焦透镜数量较多时，控制难度大，且多个变焦透镜相互之间的补偿控制难度也较大。当变焦透镜数量较少时，使得整个光学***的焦距可变空间较小。为此，本申请实施例对上述摄像模组6进行改进。However, in the above-mentioned zooming through zoom lenses, when the number of zoom lenses is large, the control is difficult, and the compensation control between the multiple zoom lenses is also difficult. When the number of zoom lenses is small, the focal length variable space of the entire optical system is small. To this end, the embodiments of the present application improve the above-mentioned camera module 6 .

在本申请的一些实施例中，如图8所示，可以将反光元件62设置为曲面反射镜。所述焦距调节组件包括：第一反光元件致动器，所述第一反光元件致动器与所述反光元件62连接。In some embodiments of the present application, as shown in FIG. 8 , the reflective element 62 may be configured as a curved mirror. The focus adjustment assembly includes: a first reflective element actuator, and the first reflective element actuator is connected to the reflective element 62 .

需要说明的是，本申请实施例提供的摄像模组具有一个内部坐标系，该内部坐标系例如为立体坐标系，该内部坐标系包括：与所述图像传感器63和所述反光元件62的轴线平行的z轴，垂直于z轴且与该镜组的高度方向平行的x轴和垂直于z轴且与该镜组的高度方向垂直的y轴。It should be noted that the camera module provided by the embodiment of the present application has an internal coordinate system, and the internal coordinate system is, for example, a three-dimensional coordinate system, and the internal coordinate system includes: the axis with the image sensor 63 and the reflective element 62 A parallel z-axis, an x-axis perpendicular to the z-axis and parallel to the height direction of the mirror group, and a y-axis perpendicular to the z-axis and perpendicular to the height direction of the mirror group.

所述第一反光元件致动器用于驱动所述第一反光元件沿z轴平移，如图8中的(a)、(b)、(c)所示，使得所述第一反光元件的位置发生改变。The first reflective element actuator is used to drive the first reflective element to translate along the z-axis, as shown in (a), (b), and (c) in FIG. 8 , so that the position of the first reflective element is changes happened.

在本申请一些实施例中，第一反光元件致动器可以由微机电***(Micro-Electro-MechanicalSystem，MEMS)执行器技术实现，也可以由音圈马达(voice coil motor，VCM)技术实现，还可以由形状记忆合金(shape memory alloy，SMA)马达技术实现，还可以通过丝杆步进电机技术实现。可以通过该反光元件致动器驱动反光元件62沿z轴产生平移，从而改变摄像模组的焦距。由此，该摄像模组的焦距易于控制，光学性能稳定。In some embodiments of the present application, the first reflective element actuator may be implemented by a Micro-Electro-Mechanical System (MEMS) actuator technology, or may be implemented by a voice coil motor (VCM) technology, It can also be realized by shape memory alloy (SMA) motor technology, and it can also be realized by screw stepping motor technology. The reflective element 62 can be driven to translate along the z-axis by the reflective element actuator, thereby changing the focal length of the camera module. Therefore, the focal length of the camera module is easy to control, and the optical performance is stable.

在本申请的另一些实施例中，如图9所示，所述反光元件62包括柔性反射镜，所述焦距调节组件包括：第二反光元件致动器，所述第二反光元件致动器与所述反光元件62连接。In other embodiments of the present application, as shown in FIG. 9 , the reflective element 62 includes a flexible mirror, and the focus adjustment assembly includes: a second reflective element actuator, the second reflective element actuator connected with the reflective element 62 .

所述第二反光元件致动器用于对所述柔性反射镜施加压力，如图9中的(a)、(b)、(c)所示，所述反光元件62会发生变形，从而能调整反射面的曲率，进而改变该***的焦距。The second reflective element actuator is used to apply pressure to the flexible reflective mirror. As shown in (a), (b), and (c) of FIG. 9 , the reflective element 62 will be deformed, so that it can be adjusted The curvature of the reflecting surface, which in turn changes the focal length of the system.

该柔性镜片可以是MEMS微变形反射镜、具有反射膜的压电驱动柔性透镜、电磁驱动柔性反射镜等。其中，第二反光元件致动器可以由多种类型的力驱动，例如压电驱动、机械力驱动、流体压力驱动、电磁驱动等。The flexible lens can be a MEMS micro-deformable mirror, a piezoelectrically driven flexible lens with a reflective film, an electromagnetically driven flexible mirror, and the like. Among them, the second light-reflecting element actuator can be driven by various types of forces, such as piezoelectric driving, mechanical force driving, fluid pressure driving, electromagnetic driving, and the like.

由此，本申请实施例可以通过调整反光元件的位置或变形实现变焦，无需改变摄像模组的其他结构，便于控制。Therefore, in the embodiments of the present application, zooming can be achieved by adjusting the position or deformation of the reflective element without changing other structures of the camera module, which is convenient for control.

现有技术中采用多个镜片组合，透镜组的尺寸较大，且透镜组中各镜片排布位置固定，光路较长，镜头较大，进行光学防抖设计时，需要驱动整个透镜组，然而通过马达难以驱动多个镜片，实现光学防抖困难。In the prior art, a combination of multiple lenses is used, the size of the lens group is large, and the arrangement position of each lens in the lens group is fixed, the optical path is long, and the lens is large. When the optical anti-shake design is performed, the entire lens group needs to be driven. However, It is difficult to drive multiple lenses through a motor, and it is difficult to achieve optical image stabilization.

在本申请的一些实施例中，摄像模组还包括：防抖组件，所述防抖组件例如与所述反光元件62和所述分光元件61的至少一个连接，所述防抖组件可以用于对光束进行抖动补偿。In some embodiments of the present application, the camera module further includes: an anti-shake assembly, for example, the anti-shake assembly is connected to at least one of the reflective element 62 and the light splitting element 61 , and the anti-shake assembly can be used for Shake compensation for the beam.

本申请实施例基于上述内部坐标系对摄像模组的抖动补偿原理进行说明，在进行抖动补偿时，防抖组件根据其所连接的光学器件接收的成像光束的抖动方向，控制该光学器件沿抖动方向移动，以对该成像光束在该抖动方向的抖动进行补偿。The embodiments of the present application describe the principle of jitter compensation of the camera module based on the above-mentioned internal coordinate system. During jitter compensation, the anti-shake component controls the optical device to move along the jitter direction according to the jitter direction of the imaging beam received by the optical device to which it is connected. The direction is shifted to compensate for the shaking of the imaging beam in the shaking direction.

例如，当光学器件接收的成像光束的抖动方向为x轴正方向时，与该光学器件相连的防抖组件控制其沿x轴正方向移动；当光学器件接收的成像光束的抖动方向为围绕y轴顺时针方向时，与该光学器件相连的防抖组件可以控制该光学器件沿y轴正方向移动，以对该抖动进行等效补偿。同理，当光学器件接收的成像光束的抖动方向为围绕y轴逆时针方向旋转时，防抖组件可以控制该光学器件沿y轴逆时针旋转，以对抖动进行等效补偿；当光学器件接收的成像光束的抖动方向为围绕x轴顺时针方向旋转时，防抖组件可以控制其沿x轴顺时针方向旋转，以对抖动进行等效补偿；当光学器件接收的成像光束的抖动方向为围绕x轴逆时针方向旋转时，防抖组件可以控制其沿围绕x轴逆时针方向旋转，以对抖动进行等效补偿。For example, when the dithering direction of the imaging beam received by the optical device is the positive direction of the x-axis, the anti-shake component connected to the optical device controls it to move in the positive direction of the x-axis; when the dithering direction of the imaging beam received by the optical device is around y When the axis is clockwise, the anti-shake component connected to the optical device can control the optical device to move in the positive direction of the y-axis to compensate for the jitter equivalently. Similarly, when the jitter direction of the imaging beam received by the optical device is counterclockwise around the y-axis, the anti-shake component can control the optical device to rotate counterclockwise along the y-axis to compensate for the jitter equivalently; when the optical device receives When the jitter direction of the imaging beam is clockwise around the x-axis, the anti-shake component can control it to rotate clockwise along the x-axis to compensate for the jitter equivalently; when the jitter direction of the imaging beam received by the optical device is around When the x-axis rotates counterclockwise, the anti-shake component can control it to rotate counterclockwise around the x-axis to compensate for the jitter equivalently.

需要说明的是，z轴与所述第一光轴O平行，x轴垂直于z轴且与该第二光轴O’平行，y轴垂直于z轴且与该镜组的高度方向垂直。It should be noted that the z-axis is parallel to the first optical axis O, the x-axis is perpendicular to the z-axis and is parallel to the second optical axis O', and the y-axis is perpendicular to the z-axis and is perpendicular to the height direction of the mirror group.

应理解，在不违背自然规律的前提下，上述可能的实现方案可以进行任意组合。以下以示例一到示例六为例进行说明。It should be understood that, on the premise of not violating the laws of nature, the above possible implementation solutions can be combined arbitrarily. Example 1 to Example 6 are used as examples for description below.

示例一：Example one:

在本示例的一些实施例中，如图10a所示，该摄像模组包括：第一透镜组601、分光元件61、第二透镜组602、反光元件62、第三透镜组603、图像传感器63，以及焦距调节组件。In some embodiments of this example, as shown in FIG. 10 a , the camera module includes: a first lens group 601 , a light splitting element 61 , a second lens group 602 , a reflective element 62 , a third lens group 603 , and an image sensor 63 , and focus adjustment components.

其中，第一透镜组601位于分光元件61的物侧，第二透镜组602位于分光元件61和反光元件62之间，第三透镜组603位于分光元件61和图像传感器63之间。The first lens group 601 is located on the object side of the beam splitting element 61 , the second lens group 602 is located between the beam splitting element 61 and the reflective element 62 , and the third lens group 603 is located between the beam splitting element 61 and the image sensor 63 .

反光元件62、第二透镜组602、分光元件61、第三透镜组603、图像传感器63沿第一光轴O依次设置，第一透镜组601位于分光元件61上方，且第一透镜组601穿过第二光轴O’设置，第二光轴O’垂直于第一光轴O。The reflective element 62, the second lens group 602, the light splitting element 61, the third lens group 603, and the image sensor 63 are arranged in sequence along the first optical axis O, the first lens group 601 is located above the light splitting element 61, and the first lens group 601 passes through The second optical axis O' is arranged through the second optical axis O', and the second optical axis O' is perpendicular to the first optical axis O.

其中，第一透镜组601例如由定焦透镜6001和变焦透镜6002组成，该透镜组60的焦距可变。The first lens group 601 is composed of, for example, a fixed-focus lens 6001 and a zoom lens 6002, and the focal length of the lens group 60 is variable.

第二透镜组602和第三透镜组603分别由两个定焦透镜6001组成。The second lens group 602 and the third lens group 603 are composed of two fixed-focus lenses 6001, respectively.

本申请实施例对焦距调节组件的具体结构不做限制，在本示例的一些实施例中，所述焦距调节组件包括：与所述变焦透镜6002连接的变焦透镜致动器，所述变焦透镜致动器用于改变所述变焦透镜的光焦度。The specific structure of the focal length adjustment assembly in the embodiments of the present application is not limited. In some embodiments of this example, the focal length adjustment assembly includes: a zoom lens actuator connected to the zoom lens 6002, and the zoom lens causes The actuator is used to change the optical power of the zoom lens.

在本示例的一些实施例中，如图10b所示，变焦透镜6002为液体透镜，可以通过改变液体表面的光焦度实现自身焦距变化。其中，液体透镜具体可以是电润湿液体透镜、声辐射压力液体透镜、液压力驱动液体透镜、介电电泳液体透镜中的一种。本申请以电润湿液体透镜为例进行说明。In some embodiments of this example, as shown in FIG. 10b , the zoom lens 6002 is a liquid lens, and its focal length can be changed by changing the optical power of the liquid surface. The liquid lens may specifically be one of an electro-wetting liquid lens, an acoustic radiation pressure liquid lens, a hydraulic pressure-driven liquid lens, and a dielectrophoretic liquid lens. This application takes the electrowetting liquid lens as an example for description.

接着参考图10b，变焦透镜6002包括：能够导电的第一液体6005和绝缘的第二液体6006，以及容纳第一液体6005和第二液体6006的容器6003，其中，第一液体6005和第二液体6006互不相溶，且第一液体6005和第二液体6006的折射率不同。10b, the zoom lens 6002 includes: a first liquid 6005 capable of conducting electricity and a second liquid 6006 that is insulating, and a container 6003 containing the first liquid 6005 and the second liquid 6006, wherein the first liquid 6005 and the second liquid 6006 are immiscible with each other, and the refractive indices of the first liquid 6005 and the second liquid 6006 are different.

在本申请一些实施例中，第一液体6005可以是无机盐水溶液，第二液体6006可以是硅油。In some embodiments of the present application, the first liquid 6005 may be an inorganic salt aqueous solution, and the second liquid 6006 may be silicone oil.

容器6003例如包括：透明管和盖板，其中，透明管的内侧壁和盖板上涂有疏水性材料6004，透明管的底壁没有覆盖疏水性材料6004，使得第一液体6005在表面张力的作用下向透明管的底壁弯曲成，形成半球状。The container 6003 includes, for example, a transparent tube and a cover plate, wherein the inner side wall and the cover plate of the transparent tube are coated with a hydrophobic material 6004, and the bottom wall of the transparent tube is not covered with the hydrophobic material 6004, so that the first liquid 6005 is at the surface tension level. Under the action, it is bent to the bottom wall of the transparent tube to form a hemispherical shape.

容器6003的侧壁上设有电极6007。如图10c所示，在电极6007上施加电压时，在第一液体6005和第二液体6006周围产生电场，在电场的作用下，第一液体6005和第二液体6006之间的分界面形状会发生变化，使得第一液体6005的液面光焦度发生变化，从而改变液体透镜6002的焦距。 Electrodes 6007 are provided on the side walls of the container 6003 . As shown in FIG. 10c, when a voltage is applied to the electrode 6007, an electric field is generated around the first liquid 6005 and the second liquid 6006. Under the action of the electric field, the shape of the interface between the first liquid 6005 and the second liquid 6006 will change. The change causes the liquid surface refractive power of the first liquid 6005 to change, thereby changing the focal length of the liquid lens 6002 .

其中，电极6007可以作为变焦透镜致动器，使得该电润湿液体透镜的光焦度发生变化。The electrode 6007 can be used as a zoom lens actuator to change the optical power of the electrowetting liquid lens.

由此，透镜组30中采用液体透镜作为变焦透镜，其尺寸小、变焦响应快，减小了摄像模组占用空间，有利于终端设备的小型化。Therefore, the liquid lens is used as the zoom lens in the lens group 30, which has small size and fast zoom response, reduces the space occupied by the camera module, and is beneficial to the miniaturization of the terminal device.

在本示例的另一些实施例中，如图10d、图10e所示，变焦透镜6002采用柔性透镜。该柔性透镜采用柔性材料制成。工作时，可以采用变焦透镜致动器对柔性材料施加力，使其发生变形，从而改变该柔性材料的焦距。In other embodiments of this example, as shown in FIG. 10d and FIG. 10e, the zoom lens 6002 adopts a flexible lens. The flexible lens is made of flexible material. During operation, a zoom lens actuator can be used to apply force to the flexible material to deform it, thereby changing the focal length of the flexible material.

其中，变焦透镜致动器可以由多种类型力驱动，例如压电驱动、机械力驱动、流体压力驱动、电磁驱动等。图10d、图10e中以压电驱动结构为例。Among them, the zoom lens actuator may be driven by various types of forces, such as piezoelectric driving, mechanical force driving, fluid pressure driving, electromagnetic driving, and the like. Figures 10d and 10e take the piezoelectric driving structure as an example.

如图10d、图10e所示，变焦透镜6002包括：基底6008、柔性镜片6009和设置于柔性镜片6009周缘的压电陶瓷6010，其中压电陶瓷6010能够在电流作用下对柔性镜片6009施加不同的力，柔性镜片6009通过受力，其表面形状会发生改变，进而可以达到变焦功能。As shown in Fig. 10d and Fig. 10e, the zoom lens 6002 includes: a base 6008, a flexible lens 6009, and a piezoelectric ceramic 6010 disposed on the periphery of the flexible lens 6009, wherein the piezoelectric ceramic 6010 can apply different Force, the surface shape of the flexible lens 6009 will be changed by the force, and then the zoom function can be achieved.

本申请实施例通过透光镜11、柔性镜片6009与压电陶瓷6010配合形成变焦透镜6002，压电陶瓷6010可以作为变焦透镜致动器，改变柔性镜片6009的面形，获得不同光焦度，等效于透镜焦距的改变，实现变焦功能。In the embodiment of the present application, the zoom lens 6002 is formed by the cooperation of the light-transmitting lens 11, the flexible lens 6009 and the piezoelectric ceramic 6010. The piezoelectric ceramic 6010 can be used as a zoom lens actuator to change the surface shape of the flexible lens 6009 to obtain different optical powers. Equivalent to the change of the focal length of the lens, the zoom function is realized.

在本示例的另一些实施例中，反光元件62采用柔性反射镜。所述焦距调节组件还包括：所述焦距调节组件还包括：与所述反光元件连接的第二反光元件致动器，所述第二反光元件致动器与所述反光元件连接。In other embodiments of this example, the reflective element 62 employs a flexible mirror. The focus adjustment assembly further includes: the focus adjustment assembly further includes: a second reflection element actuator connected with the reflection element, the second reflection element actuator is connected with the reflection element.

所述第二反光元件致动器用于对所述柔性反射镜施加压力，使得所述反光元件发生变形，从而能调整反射面的曲率，进而改变该***的焦距。The second reflective element actuator is used for applying pressure to the flexible reflective mirror, so that the reflective element is deformed, so that the curvature of the reflective surface can be adjusted, thereby changing the focal length of the system.

其中，图11a以柔性反射镜为MEMS微变形反射镜为例进行说明。Wherein, FIG. 11a takes as an example that the flexible reflector is a MEMS micro-deformable reflector.

如图11a所示，反光元件62包括：微变形反射镜621、上电极622、下电极623，以及用于支撑所述上电极622和下电极623的第一连接件625。微变形反射镜621通过第二连接件624与上电极622连接。As shown in FIG. 11a , the reflective element 62 includes: a micro-deformable mirror 621 , an upper electrode 622 , a lower electrode 623 , and a first connecting member 625 for supporting the upper electrode 622 and the lower electrode 623 . The micro-deformable mirror 621 is connected to the upper electrode 622 through the second connecting member 624 .

该上电极622可以作为所述第二反光元件致动器。工作时，上电极622和下电极623上产生的异种电荷，在异种电荷的作用下，上电极622和下电极623产生吸引，由于下电极623固定在第一连接件625上，上电极622在该吸引力的作用下发生形变，并通过第二连接件624带动微变形反射镜621的部分镜面垂直运动，改变微变形反射镜621的表面形状，获得不同曲率，等效于透镜焦距的改变，实现变焦功能。The upper electrode 622 can serve as the actuator of the second light-reflecting element. During operation, the heterogeneous charges generated on the upper electrode 622 and the lower electrode 623 are attracted by the upper electrode 622 and the lower electrode 623 under the action of the heterogeneous charges. Under the action of the attractive force, deformation occurs, and the second connecting member 624 drives part of the mirror surface of the micro-deformation mirror 621 to move vertically, changing the surface shape of the micro-deformation mirror 621 to obtain different curvatures, which is equivalent to changing the focal length of the lens. Implement the zoom function.

在本申请一些实施例中，上电极622、下电极623和第二连接件624为1组，第二连接件624可以和微变形反射镜621的中心连接，上电极622在电场力的作用下发生变形时，可以通过第二连接件624带动微变形反射镜621的中心运动，改变微变形反射镜621的表面形状。In some embodiments of the present application, the upper electrode 622 , the lower electrode 623 and the second connecting member 624 are in one group, the second connecting member 624 can be connected to the center of the micro-deformable mirror 621 , and the upper electrode 622 is under the action of the electric field force When deformation occurs, the center of the micro-deformation mirror 621 can be driven to move by the second connecting member 624 to change the surface shape of the micro-deformation mirror 621 .

在本申请另一些实施例中，如图11a所示，上电极622、下电极623和第二连接件624例如为3组，3组上电极622和下电极623例如可以独立工作，通过调整各电极622和下电极623之间的电压，使得上电极622在电场力的作用下发生变形时，可以通过第二连接件624带动微变形反射镜621的中心运动，改变微变形反射镜621的表面形状。In other embodiments of the present application, as shown in FIG. 11a, the upper electrode 622, the lower electrode 623 and the second connecting member 624 are, for example, three groups. For example, the three groups of the upper electrode 622 and the lower electrode 623 can work independently. The voltage between the electrode 622 and the lower electrode 623 causes the upper electrode 622 to be deformed under the action of the electric field force, and can drive the center of the micro-deformation mirror 621 to move through the second connector 624 to change the surface of the micro-deformation mirror 621 shape.

由此，采用3组电极对调整微变形反射镜621的表面形状，精度更高。Therefore, three sets of electrode pairs are used to adjust the surface shape of the micro-deformation mirror 621, and the precision is higher.

图11b、图11c以柔性反射镜采用具有反射膜的压电驱动柔性透镜为例进行说明。Figures 11b and 11c illustrate the use of a piezoelectrically driven flexible lens with a reflective film as an example for the flexible reflector.

如图11b所示，反光元件62包括：基底626、柔性镜片627、设置在柔性镜片627表面的反射膜629和设置于柔性镜片627周缘的压电陶瓷628，其中压电陶瓷628能够在电流作用下对柔性镜片627施加不同的力，柔性镜片627通过受力，其表面形状会发生改变，进而可以达到变焦功能。As shown in FIG. 11b, the reflective element 62 includes: a base 626, a flexible lens 627, a reflective film 629 disposed on the surface of the flexible lens 627, and a piezoelectric ceramic 628 disposed on the periphery of the flexible lens 627, wherein the piezoelectric ceramic 628 can act on current When different forces are applied to the flexible lens 627, the shape of the surface of the flexible lens 627 will be changed by the force, so that the zoom function can be achieved.

本申请实施例通过透光镜11、柔性镜片627与压电陶瓷628配合形成变焦透镜6002，压电陶瓷628可以作为变焦透镜致动器，改变柔性镜片627的面形，获得不同曲率，等效于透镜焦距的改变，实现变焦功能。In the embodiment of the present application, the zoom lens 6002 is formed by the cooperation of the light-transmitting lens 11, the flexible lens 627 and the piezoelectric ceramic 628. The piezoelectric ceramic 628 can be used as a zoom lens actuator to change the surface shape of the flexible lens 627 to obtain different curvatures, equivalent to The zoom function is realized due to the change of the focal length of the lens.

如图11c所示，反光元件62包括：基底626、柔性镜片627、设置在基底626表面的反射膜629和设置于柔性镜片627周缘的压电陶瓷628，其中压电陶瓷628能够在电流作用下对柔性镜片627施加不同的力，柔性镜片627通过受力，其表面形状会发生改变，进而可以达到变焦功能。As shown in Figure 11c, the reflective element 62 includes: a base 626, a flexible lens 627, a reflective film 629 disposed on the surface of the base 626, and a piezoelectric ceramic 628 disposed on the periphery of the flexible lens 627, wherein the piezoelectric ceramic 628 can be driven by a current Different forces are applied to the flexible lens 627, and the surface shape of the flexible lens 627 will be changed by the force, so that the zoom function can be achieved.

图11d以柔性反射镜采用电磁驱动柔性反射镜为例进行说明。FIG. 11d illustrates by taking an example of an electromagnetically driven flexible mirror as the flexible mirror.

如图11d所示，反光元件62包括：柔性镜片6200、与所述柔性镜片6200连接的连杆6201，以及用于驱动所述连杆6201运动的线圈6202。As shown in FIG. 11d , the reflective element 62 includes a flexible lens 6200 , a link 6201 connected with the flexible lens 6200 , and a coil 6202 for driving the link 6201 to move.

工作时，可以通过对线圈6202施加电压驱动连杆6201运动，连杆6201另一端与柔性镜片6200的背面粘接，线圈6202在电压作用下通过连杆6201对柔性镜片627施加不同的力，柔性镜片627通过受力，其表面形状会发生改变，进而可以达到变焦功能。When working, the connecting rod 6201 can be driven to move by applying a voltage to the coil 6202, and the other end of the connecting rod 6201 is bonded to the back of the flexible lens 6200. When the lens 627 is subjected to force, the surface shape of the lens 627 will change, so that the zoom function can be achieved.

由此，该摄像模组响应快，变焦范围广。Therefore, the camera module has a fast response and a wide zoom range.

工作时，光线由物侧沿x轴入射，先经过第一透镜组601，然后经过分光元件61。由于分光元件61为半透半反分光棱镜，如图12b所示，入射光线经过分光面611时会有一半的光线透射，一半的光线反射。则第一次经过分光元件61的光线被反射的部分从左侧沿轴射出，经过第二透镜组602，至反光元件62的反射面处被反射。之后光线会第二次经过第二透镜组602，然后第二次经过分光元件61，如图12b所示，在分光面611处仍然有一半的光线会透过，这部分光线从右侧沿z轴穿出，经过第三透镜组603，最终在图像传感器63上成像。During operation, light is incident along the x-axis from the object side, first passes through the first lens group 601 , and then passes through the light splitting element 61 . Since the beam splitting element 61 is a transflective beam splitter prism, as shown in FIG. 12 b , when the incident light passes through the beam splitter surface 611 , half of the light is transmitted and half of the light is reflected. Then, the reflected part of the light passing through the light splitting element 61 for the first time is emitted from the left along the axis, passes through the second lens group 602 , and is reflected at the reflective surface of the reflective element 62 . After that, the light will pass through the second lens group 602 for the second time, and then pass through the light splitting element 61 for the second time. As shown in Figure 12b, half of the light will still pass through the light splitting surface 611, and this part of the light will pass from the right edge z The shaft passes out, passes through the third lens group 603 , and finally forms an image on the image sensor 63 .

该过程可展开为如图12b所示的等效光路。This process can be expanded into an equivalent optical path as shown in Fig. 12b.

表1Table 1

如表1所示，本实施例通过对反光元件62曲率控制可实现2倍长焦、3倍长焦、微距三种模式。其中，该光学***像面尺寸为4.2mm，1X镜头焦距2.6mm，对应视场角为78°。表1中的2X模式，也即2倍长焦模式，是指在该模式下，光学焦距与最短焦距之比为2。3X模式，也即3倍长焦模式，是指在该模式下，光学焦距与最短焦距之比为3。20mm微距模式，是指可以拍摄距离镜头20mm的物体。As shown in Table 1, in this embodiment, three modes of 2x telephoto, 3x telephoto, and macro can be realized by controlling the curvature of the reflective element 62 . Among them, the image size of the optical system is 4.2mm, the focal length of the 1X lens is 2.6mm, and the corresponding field of view is 78°. The 2X mode in Table 1, that is, the 2x telephoto mode, means that in this mode, the ratio of the optical focal length to the shortest focal length is 2. The 3X mode, that is, the 3x telephoto mode, means that in this mode, the The ratio of the optical focal length to the shortest focal length is 3. The 20mm macro mode means that you can shoot objects 20mm away from the lens.

图12a中的(a)为该摄像模组在2X长焦模式下的仿真图，图12a中的(b)为该摄像模组在3X长焦模式下的仿真图、图12a中的(c)为该摄像模组在微距模式下的仿真图。(a) in Fig. 12a is a simulation diagram of the camera module in the 2X telephoto mode, (b) in Fig. 12a is a simulation diagram of the camera module in the 3X telephoto mode, (c) in Fig. 12a ) is the simulation diagram of the camera module in macro mode.

如图12a中的(a)、(b)、(c)所示，在不同摄像模式下，第一透镜组601、第二透镜组602、第三透镜组603的焦距不同。不同摄像模式下，反光元件62的位置不变，焦距不同。As shown in (a), (b) and (c) of FIG. 12a, in different imaging modes, the focal lengths of the first lens group 601, the second lens group 602, and the third lens group 603 are different. In different imaging modes, the position of the reflective element 62 does not change, and the focal length is different.

由此，本发明增加了分光棱镜和反射镜，两次折屈光路，实现潜望折返形式，提高空间利用率，使结构更为紧凑，更易应用在手机中。Therefore, the present invention adds a beam splitting prism and a reflector, folds the optical path twice, realizes a periscope reentrant form, improves space utilization, makes the structure more compact, and is easier to apply in mobile phones.

本示例提供的摄像模组，可以兼顾较广的无穷远变焦和不同物距的对焦。一个模组实现多个定焦模组的功能，减少摄像头数量。采用可变曲率反射镜，小幅度的曲率变化能带来较大的焦距变化。此外，可以通过驱动一个反光元件62实现对焦与光学防抖。控制更直接迅速。The camera module provided in this example can take into account both wide infinity zoom and focusing at different object distances. One module implements the functions of multiple fixed-focus modules, reducing the number of cameras. With variable curvature mirrors, small changes in curvature can bring about large changes in focal length. In addition, focusing and optical image stabilization can be achieved by driving a reflective element 62 . Control is more direct and quick.

示例二：Example two:

在本示例的一些实施例中，如图13所示，该摄像模组包括：第一透镜组601、分光元件61、第二透镜组602、反光元件62、第三透镜组603、图像传感器63，以及焦距调节组件。In some embodiments of this example, as shown in FIG. 13 , the camera module includes: a first lens group 601 , a light splitting element 61 , a second lens group 602 , a reflective element 62 , a third lens group 603 , and an image sensor 63 , and focus adjustment components.

与示例一不同之处在于反光元件62为位置可变，曲率固定的曲面反射镜。The difference from Example 1 is that the reflective element 62 is a curved mirror with a variable position and a fixed curvature.

其中，所述焦距调节组件包括：与所述反光元件连接的第一反光元件致动器，所述第一反光元件致动器与所述反光元件连接。Wherein, the focal length adjusting assembly includes: a first reflective element actuator connected with the reflective element, and the first reflective element actuator is connected with the reflective element.

所述第一反光元件致动器用于驱动所述第一反光元件沿z轴平移，使得所述第一反光元件的位置发生改变。The first light-reflecting element actuator is used for driving the first light-reflecting element to translate along the z-axis, so that the position of the first light-reflecting element changes.

在本申请一些实施例中，第一反光元件致动器可以是马达，可以通过马达驱动反光元件62沿z轴产生平移，从而改变摄像模组的焦距。由此，该摄像模组的焦距易于控制，光学性能稳定。In some embodiments of the present application, the first reflective element actuator may be a motor, and the reflective element 62 may be driven by the motor to translate along the z-axis, thereby changing the focal length of the camera module. Therefore, the focal length of the camera module is easy to control, and the optical performance is stable.

表2Table 2

如表2所示，本实施例通过对反光元件62位置调整可实现2倍长焦、3倍长焦、微距三种模式。其中，该光学***像面尺寸为4.2mm，1X镜头焦距2.6mm，对应视场角为78°。As shown in Table 2, in this embodiment, three modes of 2x telephoto, 3x telephoto, and macro can be realized by adjusting the position of the reflective element 62 . Among them, the image size of the optical system is 4.2mm, the focal length of the 1X lens is 2.6mm, and the corresponding field of view is 78°.

图14示出了该摄像模组在不同摄像模式下的工作状态图。FIG. 14 shows a working state diagram of the camera module in different camera modes.

图14中的(a)为该摄像模组在2X长焦模式下的仿真图，图14中的(b)为该摄像模组在3X长焦模式下的仿真图、图14中的(c)为该摄像模组在微距模式下的仿真图。如图14中的(a)、(b)、(c)所示，在不同摄像模式下，第一透镜组601的焦距不同。其中，以第二透镜组602作为原点，在不同摄像模式下，反光元件62的焦距不变，反光元件62与透镜组602之间的距离发生变化。(a) in Figure 14 is a simulation diagram of the camera module in the 2X telephoto mode, (b) in Figure 14 is a simulation diagram of the camera module in the 3X telephoto mode, (c) in Figure 14 ) is the simulation diagram of the camera module in macro mode. As shown in (a), (b) and (c) of FIG. 14 , in different imaging modes, the focal length of the first lens group 601 is different. Wherein, taking the second lens group 602 as the origin, in different imaging modes, the focal length of the reflective element 62 does not change, and the distance between the reflective element 62 and the lens group 602 changes.

本实施例将实施例一中的位置固定曲率曲面反射镜变更为位置可变固定曲率的曲面反射镜，可使用微型步进电机进行驱动，工艺成熟，更易于实现。In this embodiment, the position-fixed curvature curved mirror in the first embodiment is changed to a position-variable and fixed-curvature curved mirror, which can be driven by a micro-stepping motor, and the process is mature and easier to implement.

示例三：Example three:

在本示例的一些实施例中，如图15所示，该摄像模组包括：第一透镜组601、分光元件61、第二透镜组602、反光元件62、第三透镜组603、图像传感器63、调焦组件以及防抖组件。其中，该调焦组件的具体结构可参考上述示例一和示例二，本示例对该防抖组件的具体形式进行说明。In some embodiments of this example, as shown in FIG. 15 , the camera module includes: a first lens group 601 , a light splitting element 61 , a second lens group 602 , a reflective element 62 , a third lens group 603 , and an image sensor 63 , focusing components and anti-shake components. For the specific structure of the focusing assembly, reference may be made to the above-mentioned example 1 and example 2, and this example describes the specific form of the anti-shake assembly.

在本示例的一些实施例中，所述防抖组件例如与所述反光元件62连接，所述防抖组件可以用于对光束进行抖动补偿。In some embodiments of the present example, the anti-shake assembly is connected to, for example, the reflective element 62, and the anti-shake assembly can be used to perform jitter compensation on the light beam.

所述防抖组件包括：反光元件致动器，所述反光元件致动器与所述反光元件62连接，所述反光元件致动器用于驱动所述反光元件62移动，以对所述成像光束进行第一抖动补偿。The anti-shake assembly includes: a reflective element actuator, the reflective element actuator is connected to the reflective element 62, and the reflective element actuator is used to drive the reflective element 62 to move, so as to align the imaging beam A first shake compensation is performed.

在本申请实施例中，该反光元件62可以在被防抖组件驱动的情况下沿第一光轴O和第一转动轴产生平移，或在被驱动的情况下绕第一光轴O和第一转动轴方向产生转动，或在被驱动的情况下在x轴和y轴方向同时产生平移和转动，从而达到光学防抖的目的。需要说明的是，第一光轴O平行于图中的X轴，所述第一转动轴为垂直于所述第一光轴和所述第二光轴的转轴，第一转动轴平行于图中的Y轴。In this embodiment of the present application, the reflective element 62 may translate along the first optical axis O and the first rotation axis when driven by the anti-shake component, or around the first optical axis O and the first rotation axis when driven Rotation is generated in the direction of a rotation axis, or translation and rotation are simultaneously generated in the x-axis and y-axis directions when driven, so as to achieve the purpose of optical image stabilization. It should be noted that the first optical axis O is parallel to the X axis in the figure, the first rotation axis is a rotation axis perpendicular to the first optical axis and the second optical axis, and the first rotation axis is parallel to the figure in the Y-axis.

可选的，该反光元件致动器可以由微机电***(Micro-Electro-MechanicalSystem，MEMS)执行器技术实现，也可以由音圈马达(voice coil motor，VCM)技术实现，还可以由形状记忆合金(shape memory alloy，SMA)马达技术实现。Optionally, the reflective element actuator can be realized by Micro-Electro-Mechanical System (MEMS) actuator technology, also can be realized by voice coil motor (VCM) technology, and can also be realized by shape memory technology. Alloy (shape memory alloy, SMA) motor technology realization.

VCM中，可以采用永久磁钢的磁场与通电线圈导体产生的磁场中磁极间的相互作用控制反光元件62产生有规律的运动，该磁场可以对x轴和y轴的电磁力大小控制，进而调整反光元件62的位置、角度。In the VCM, the interaction between the magnetic field of the permanent magnet steel and the magnetic field generated by the energized coil conductor can be used to control the regular movement of the reflective element 62. The magnetic field can control the magnitude of the electromagnetic force on the x-axis and the y-axis, and then adjust the The position and angle of the reflective element 62 .

需要说明的是，z轴与所述图像传感器63和所述反光元件62的轴线平行，x轴垂直于z轴且与该镜组的高度方向平行，y轴垂直于z轴且与该镜组的高度方向垂直。It should be noted that the z-axis is parallel to the axes of the image sensor 63 and the reflective element 62, the x-axis is perpendicular to the z-axis and is parallel to the height direction of the mirror group, and the y-axis is perpendicular to the z-axis and is parallel to the mirror group The height direction is vertical.

示例的，该反光元件致动器可以采用静电致动件、电磁致动件、电热致动件或压电致动件等。Exemplarily, the reflective element actuator may be an electrostatic actuator, an electromagnetic actuator, an electrothermal actuator, or a piezoelectric actuator, or the like.

当该致动件为静电致动件时，该致动件可以通过调整加载的静电力，驱动反光元件62移动。当该致动件为电磁致动件时，该致动件可以通过调整磁性的正负，驱动反光元件62移动。当该致动件为电热致动件时，该致动件可以通过调整温度，从而控制该反光元件62移动。当该致动件为压电致动件时，该致动件可以通过调整外加电场的强度，驱动反光元件62移动。When the actuating member is an electrostatic actuating member, the actuating member can drive the reflective element 62 to move by adjusting the electrostatic force loaded. When the actuating member is an electromagnetic actuating member, the actuating member can drive the reflective element 62 to move by adjusting the positive and negative magnetic properties. When the actuator is an electrothermal actuator, the actuator can control the movement of the reflective element 62 by adjusting the temperature. When the actuator is a piezoelectric actuator, the actuator can drive the reflective element 62 to move by adjusting the intensity of the applied electric field.

在本示例的一些实施例中，终端还包括：抖动检测结构，该抖动检测结构可以集成在反光元件62上，当该抖动检测结构集成在反光元件62上时，该抖动检测结构无需单独安装，可以简化摄像模组的整体安装过程。In some embodiments of this example, the terminal further includes: a shake detection structure, which can be integrated on the reflective element 62, and when the shake detection structure is integrated on the reflective element 62, the shake detection structure does not need to be installed separately, The overall installation process of the camera module can be simplified.

在本示例的另一些实施例中，该抖动检测结构可以是设置在终端内部的陀螺仪。In other embodiments of this example, the jitter detection structure may be a gyroscope provided inside the terminal.

可选的，该抖动检测结构包括至少一个图像晃动感测器。当成像光束由镜组传输至反光元件62时，该图像晃动感测器可以先于该反光元件62在感光区域进行准确的图像采集，从而可以预知采集的图像的抖动方向和抖动量，进而进行抖动补偿。Optionally, the shake detection structure includes at least one image shake sensor. When the imaging beam is transmitted from the mirror group to the reflective element 62, the image shaking sensor can accurately capture the image in the photosensitive area before the reflective element 62, so that the shaking direction and amount of the captured image can be predicted, and then Shake compensation.

可选的，该终端还包括：第一控制器，第一控制器分别与抖动检测结构和反光元件致动器连接。Optionally, the terminal further includes: a first controller, where the first controller is respectively connected to the shake detection structure and the reflective element actuator.

所述第一控制器用于获取抖动检测结构检测到的成像光束的第一抖动方向和第一抖动量，并基于第一抖动方向和第一抖动量确定第一抖动补偿方向和第一抖动补偿位移，基于第一抖动补偿方向和第一抖动补偿位移控制反光元件致动结构驱动反光元件62沿第一抖动补偿方向移动第一抖动补偿位移。The first controller is configured to acquire a first shake direction and a first shake amount of the imaging beam detected by the shake detection structure, and determine a first shake compensation direction and a first shake compensation displacement based on the first shake direction and the first shake amount , based on the first shake compensation direction and the first shake compensation displacement, the light-reflecting element actuating structure is controlled to drive the light-reflecting element 62 to move the first shake compensation displacement along the first shake compensation direction.

工作时，当手抖等原因引起摄像模组出现抖动时，抖动检测结构检测成像光束的第一抖动方向和第一抖动量，该第一控制器获取抖动检测结构检测的该第一抖动方向和第一抖动量，并根据该第一抖动方向和第一抖动量确定第一抖动补偿方向和第一抖动补偿位移，进而控制反光元件致动结构驱动反光元件62沿第一抖动补偿方向移动第一抖动补偿位移。其中，第一抖动补偿方向可以包括上述内部坐标系中的至少一个方向，第一抖动补偿位移包括与该至少一个方向一一对应的补偿位移，其可以为直线位移也可以为角度位移。During operation, when the camera module shakes due to reasons such as hand shake, the shake detection structure detects the first shake direction and the first shake amount of the imaging beam, and the first controller obtains the first shake direction and the first shake detected by the shake detection structure. The first shake amount, and the first shake compensation direction and the first shake compensation displacement are determined according to the first shake direction and the first shake amount, and then the reflective element actuating structure is controlled to drive the reflective element 62 to move the first shake compensation direction along the first shake compensation direction. Shake compensation displacement. The first shake compensation direction may include at least one direction in the above-mentioned internal coordinate system, and the first shake compensation displacement includes a one-to-one compensation displacement corresponding to the at least one direction, which may be a linear displacement or an angular displacement.

示例四：Example four:

在本示例的一些实施例中，如图16所示，该摄像模组包括：第一透镜组601、分光元件61、第二透镜组602、反光元件62、第三透镜组603、图像传感器63、调焦组件以及防抖组件，其中，该调焦组件的具体结构可参考上述示例一和示例二，本示例对该防抖组件的具体形式进行说明。In some embodiments of this example, as shown in FIG. 16 , the camera module includes: a first lens group 601 , a light splitting element 61 , a second lens group 602 , a reflective element 62 , a third lens group 603 , and an image sensor 63 , a focusing assembly and an anti-shake assembly, wherein, for the specific structure of the focusing assembly, reference may be made to the above-mentioned example 1 and example 2, and this example describes the specific form of the anti-shake assembly.

所述防抖组件与所述分光元件61连接，所述防抖组件例如包括：分光元件致动器。The anti-shake assembly is connected to the spectroscopic element 61 , and the anti-shake assembly includes, for example, a spectroscopic element actuator.

所述分光元件致动器与所述分光元件61连接，所述分光元件致动器用于驱动所述反光元件62移动，以对所述成像光束进行抖动补偿。The spectroscopic element actuator is connected to the spectroscopic element 61, and the spectroscopic element actuator is used to drive the light-reflecting element 62 to move, so as to perform jitter compensation for the imaging beam.

在本申请实施例中，该分光元件61致动结构驱动该分光元件61移动的方向可以有多种，例如该方向可以为该摄像模组内部坐标系的x轴方向、y轴方向移动和围绕x轴、y轴旋转轴方向。可选的，该分光元件致动器可以由微机电***(Micro-Electro-MechanicalSystem，MEMS)执行器技术实现，也可以由音圈马达(voice coil motor，VCM)技术实现，还可以由形状记忆合金(shape memory alloy，SMA)马达技术实现。In this embodiment of the present application, the actuation structure of the light splitting element 61 can drive the light splitting element 61 to move in various directions. For example, the direction can be the x-axis direction, the y-axis direction of the camera module's internal coordinate system, and the moving and surrounding directions of the camera module. x-axis, y-axis rotation axis direction. Optionally, the spectroscopic element actuator can be realized by Micro-Electro-Mechanical System (MEMS) actuator technology, also can be realized by voice coil motor (VCM) technology, and can also be realized by shape memory technology. Alloy (shape memory alloy, SMA) motor technology realization.

示例的，该致动件可以为静电致动件、电磁致动件、电热致动件或压电致动件等。For example, the actuator may be an electrostatic actuator, an electromagnetic actuator, an electrothermal actuator, or a piezoelectric actuator, or the like.

当该致动件为静电致动件时，该致动件可以通过调整加载的静电力，驱动可动载台在凹槽内移动。当该致动件为电磁致动件时，该致动件可以通过调整磁性的正负，驱动可动载台在凹槽内移动。当该致动件为电热致动件时，该致动件可以通过调整温度，从而控制该驱动可动载台在凹槽内执行运动动作。当该致动件为压电致动件时，该致动件可以通过调整外加电场的强度，驱动可动载台在凹槽内移动。When the actuating member is an electrostatic actuating member, the actuating member can drive the movable stage to move in the groove by adjusting the electrostatic force loaded. When the actuating member is an electromagnetic actuating member, the actuating member can drive the movable stage to move in the groove by adjusting the positive and negative of the magnetism. When the actuating member is an electrothermal actuating member, the actuating member can control the driving movable stage to perform movement in the groove by adjusting the temperature. When the actuator is a piezoelectric actuator, the actuator can drive the movable stage to move in the groove by adjusting the intensity of the applied electric field.

在本示例的一些实施例中，终端还包括：抖动检测结构，该抖动检测结构可以集成在分光元件61上，当该抖动检测结构集成在分光元件61上时，该抖动检测结构无需单独安装，可以简化摄像模组的整体安装过程。In some embodiments of this example, the terminal further includes: a jitter detection structure, which can be integrated on the spectroscopic element 61, when the jitter detection structure is integrated on the spectroscopic element 61, the jitter detection structure does not need to be installed separately, The overall installation process of the camera module can be simplified.

在本示例的另一些实施例中，该抖动检测结构可以是设置在终端内部的陀螺仪。可选的，该防抖组件还包括：第二控制器，第二控制器分别与抖动检测结构和分光元件致动器连接。In other embodiments of this example, the jitter detection structure may be a gyroscope provided inside the terminal. Optionally, the anti-shake assembly further includes: a second controller, where the second controller is respectively connected to the jitter detection structure and the light splitting element actuator.

第一控制器被配置为执行第二抖动补偿的控制过程，也即是：获取抖动检测结构检测到的成像光束的第二抖动方向和第二抖动量，并基于第二抖动方向和第二抖动量确定第二抖动补偿方向和第二抖动补偿位移，基于第二抖动补偿方向和第二抖动补偿位移控制分光元件致动器驱动分光元件沿第二抖动补偿方向移动第二抖动补偿位移。The first controller is configured to perform a second jitter compensation control process, that is, to acquire a second jitter direction and a second jitter amount of the imaging beam detected by the jitter detection structure, and based on the second jitter direction and the second jitter The second shake compensation direction and the second shake compensation displacement are determined based on the second shake compensation direction and the second shake compensation displacement, and the splitter element actuator is controlled to drive the splitter element to move the second shake compensation displacement along the second shake compensation direction.

工作时，当手抖等原因引起摄像模组出现抖动时，抖动检测结构检测成像光束的第二抖动方向和第二抖动量，该第二控制器获取抖动检测结构检测的该第一抖动方向和第二抖动量，并根据该第二抖动方向和第二抖动量确定第二抖动补偿方向和第二抖动补偿位移，进而控制分光元件致动器驱动分光元件沿第二抖动补偿方向移动第二抖动补偿位移。其中，第二抖动补偿方向可以包括上述内部坐标系中的至少一个方向，第二抖动补偿位移包括与该至少一个方向一一对应的补偿位移，其可以为直线位移也可以为角度位移。During operation, when the camera module shakes due to reasons such as hand shake, the shake detection structure detects the second shake direction and the second shake amount of the imaging beam, and the second controller obtains the first shake direction and the second shake amount detected by the shake detection structure. the second shaking amount, and determining the second shaking compensation direction and the second shaking compensation displacement according to the second shaking direction and the second shaking amount, and then controlling the beam splitting element actuator to drive the beam splitting element to move the second shaking along the second shaking compensation direction Compensate for displacement. The second shake compensation direction may include at least one direction in the above-mentioned internal coordinate system, and the second shake compensation displacement includes a one-to-one compensation displacement corresponding to the at least one direction, which may be a linear displacement or an angular displacement.

示例五：Example five:

如图17所示，该摄像模组包括：第一透镜组601、分光元件61、第二透镜组602、反光元件62、第三透镜组603、图像传感器63、调焦组件以及防抖组件。其中，该调焦组件的具体结构可参考上述示例一和示例二，该防抖组件的具体结构可参考上述示例三和示例四。本示例对该分光元件61的一种形式进行说明。As shown in FIG. 17 , the camera module includes: a first lens group 601 , a light splitting element 61 , a second lens group 602 , a reflective element 62 , a third lens group 603 , an image sensor 63 , a focusing component and an anti-shake component. The specific structure of the focusing assembly may refer to the above-mentioned example 1 and the second example, and the specific structure of the anti-shake assembly may refer to the above-mentioned example 3 and the fourth example. This example describes one form of the spectroscopic element 61 .

分光元件61例如包括：第一直角棱镜610和第二直角棱镜612，第一直角棱镜610和第二直角棱镜612的斜面与直角面夹角均为45°。其中，第一直角棱镜610的斜面上例如设有光学膜层。The light splitting element 61 includes, for example, a first right-angle prism 610 and a second right-angle prism 612 , and the angle between the inclined plane and the right-angle plane of the first right-angle prism 610 and the second right-angle prism 612 is both 45°. Wherein, for example, an optical film layer is provided on the inclined surface of the first right angle prism 610 .

在本示例的一些实施例中，该光学膜层为偏振分光膜，所述光学模组6还包括：四分之一波片，所述四分之一波片设置在所述反光元件62和所述分光元件61之间。In some embodiments of this example, the optical film layer is a polarizing beam splitter film, and the optical module 6 further includes: a quarter-wave plate, the quarter-wave plate is disposed on the reflective element 62 and the reflective element 62 and the between the light splitting elements 61 .

其中，当光线以非垂直角度穿透分光元件61的分光面611时，反射和透射特性均依赖于偏振现象。这种情况下，偏振分光镜能把入射的非偏振光分成两束偏振方向不同的偏振光。使用的坐标系是用含有输入和反射光束的那个平面定义的。如果光线的偏振矢量在这个平面内，则称为P偏光，如果偏振矢量垂直于该平面，则称为S偏光。任何一种输入偏振状态都可以表示为s和p分量的矢量和。Wherein, when light penetrates the beam splitting surface 611 of the beam splitting element 61 at a non-perpendicular angle, the reflection and transmission characteristics both depend on the polarization phenomenon. In this case, the polarizing beam splitter can split the incident unpolarized light into two polarized lights with different polarization directions. The coordinate system used is defined by the plane containing the input and reflected beams. If the polarization vector of the light is in this plane, it is called P-polarized light, and if the polarization vector is perpendicular to this plane, it is called S-polarized light. Either input polarization state can be represented as the vector sum of the s and p components.

如图17中的(a)所示，其中P偏光完全通过，而S偏光以45度角被反射。出射的S光经过四分之一波片后偏振方向发生45°变化，然后被反光元件62反射，其偏振状态不变。图17中的(b)所示为反射后的光偏振状态，被反光元件62反射后的光经过四分之一波片，偏振方向再增加45°，则变为P光，因此再次经过偏振分光镜时不发生反射，而是完全透过，最终在感光元件处成像。由此可知，这种方案中只有50％的光损失。As shown in (a) of FIG. 17 , the P-polarized light is completely transmitted, and the S-polarized light is reflected at an angle of 45 degrees. After the outgoing S light passes through the quarter-wave plate, the polarization direction changes by 45°, and then is reflected by the light-reflecting element 62, and its polarization state remains unchanged. (b) in FIG. 17 shows the polarization state of the reflected light. The light reflected by the reflective element 62 passes through a quarter-wave plate, and the polarization direction increases by 45° to become P light, so it is polarized again. The beam splitter does not reflect, but completely transmits, and finally forms an image at the photosensitive element. It can be seen that only 50% of the light is lost in this scheme.

但由于使用偏振分光镜方案时会丢失入射光线中P偏振光，这就导致一些自然产生的偏振光在拍摄时会被过滤掉，例如水面反射光、玻璃反射光等。However, since the P-polarized light in the incident light will be lost when using the polarizing beam splitter solution, some naturally occurring polarized light will be filtered out during shooting, such as water surface reflection light, glass reflection light, etc.

示例六：Example six:

如图18所示，该摄像模组包括：第一透镜组601、分光元件61、第二透镜组602、反光元件62、第三透镜组603、图像传感器63、调焦组件以及防抖组件。其中，该调焦组件的具体结构可参考上述示例一和示例二，该防抖组件的具体结构可参考上述示例三和示例四。本示例对该分光元件61的另一种形式进行说明。As shown in FIG. 18 , the camera module includes: a first lens group 601 , a light splitting element 61 , a second lens group 602 , a reflective element 62 , a third lens group 603 , an image sensor 63 , a focusing component and an anti-shake component. The specific structure of the focusing assembly may refer to the above-mentioned example 1 and the second example, and the specific structure of the anti-shake assembly may refer to the above-mentioned example 3 and the fourth example. This example describes another form of the spectroscopic element 61 .

其中，分光元件61例如包括：第一直角棱镜610和第二直角棱镜612，第一直角棱镜610和第二直角棱镜612的斜面与直角面夹角均为45°。其中，第一直角棱镜610的斜面上例如设有光学膜层。Wherein, the light splitting element 61 includes, for example, a first right angle prism 610 and a second right angle prism 612, and the angle between the inclined plane and the right angle plane of the first right angle prism 610 and the second right angle prism 612 is both 45°. Wherein, for example, an optical film layer is provided on the inclined surface of the first right angle prism 610 .

在本示例的一些实施例中，所述光学膜层为非偏振分光膜。如图18中的(a)所示，在光束第一次通过分光面611时，例如有一半的光被反射，一半的光透射，如图18中的(b)所示，当反射光第二通过分光面611时，有一半的光被反射，一半的光透射，最终会有75％的光损失。非偏振分光膜不会丢失入射光线中的偏振光信息。In some embodiments of this example, the optical film layer is a non-polarizing beam splitter film. As shown in (a) of FIG. 18 , when the light beam passes through the beam splitting surface 611 for the first time, for example, half of the light is reflected and half of the light is transmitted. As shown in (b) of FIG. 18 , when the reflected light is the first When passing through the light splitting surface 611, half of the light is reflected, half of the light is transmitted, and finally there will be a 75% light loss. Non-polarizing beamsplitters do not lose polarized light information in incident light.

需要说明的是，分光元件61的分光面611上可以采用偏振分光膜层，也可以采用非偏振分光膜层，本领域技术人员可以根据使用场景选择合适的分光膜层，本申请对此不做限制，这些均属于本申请的保护范围。It should be noted that a polarizing beam splitting film layer or a non-polarizing beam splitting film layer can be used on the beam splitting surface 611 of the beam splitting element 61. Those skilled in the art can select a suitable beam splitting film layer according to the usage scene, which is not covered in this application. Limitations, these all belong to the protection scope of the present application.

以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the protection scope of the present application. . Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

一种镜头模组，其特征在于，包括：一个或多个透镜组，以及沿第一光轴依次设置的反光元件和分光元件；A lens module, comprising: one or more lens groups, and a reflective element and a light-splitting element arranged in sequence along a first optical axis;

其中，所述一个或多个透镜组分别沿第二光轴设置在所述分光元件的物侧，或沿所述第一光轴设置在所述分光元件与所述反光元件之间，或沿第一光轴设置在所述分光元件远离所述反光元件的一侧，所述透镜组用于成像；Wherein, the one or more lens groups are respectively disposed on the object side of the beam splitting element along the second optical axis, or disposed between the beam splitting element and the light reflecting element along the first optical axis, or along the first optical axis. The first optical axis is arranged on the side of the light splitting element away from the light reflecting element, and the lens group is used for imaging;

所述分光元件包括：分光面，所述分光面与所述第一光轴之间的夹角大于0°且小于90°；所述分光元件用于对从所述物侧沿所述第二光轴入射至所述分光元件的光束进行第一次分光，形成被所述分光元件反射的第一反射光束，并将所述第一反射光束沿所述第一光轴反射至所述反光元件；The light-splitting element includes: a light-splitting surface, and the included angle between the light-splitting surface and the first optical axis is greater than 0° and less than 90°; The light beam incident on the optical axis of the beam splitting element is split for the first time to form a first reflected beam reflected by the beam splitting element, and the first reflected beam is reflected to the reflective element along the first optical axis ;

所述反光元件用于将所述第一反射光束反射至所述分光元件，所述分光元件还用于对所述第一反射光束进行第二次分光，形成穿过所述分光元件的第一透射光束。The reflective element is used for reflecting the first reflected light beam to the light splitting element, and the light splitting element is also used for second splitting the first reflected light beam to form a first light beam passing through the light splitting element. transmitted beam.
根据权利要求1所述的镜头模组，其特征在于，所述分光元件包括透明平板，所述透明平板包括分光面，所述分光面上设有光学膜层。The lens module according to claim 1, wherein the light splitting element comprises a transparent flat plate, the transparent flat plate comprises a light splitting surface, and an optical film layer is provided on the light splitting surface.
根据权利要求1所述的镜头模组，其特征在于，所述分光元件包括：至少两个直角棱镜，所述至少两个直角棱镜组成立方体结构，所述至少两个直角棱镜的接触面为分光面，所述分光面上设有光学膜层。The lens module according to claim 1, wherein the light splitting element comprises: at least two right-angle prisms, the at least two right-angle prisms form a cube structure, and the contact surfaces of the at least two right-angle prisms are light splitting The light splitting surface is provided with an optical film layer.
根据权利要求2或3所述的镜头模组，其特征在于，所述光学膜层包括：偏振分光膜；The lens module according to claim 2 or 3, wherein the optical film layer comprises: a polarized light splitting film;

所述镜头模组还包括：波片，所述波片设置在所述反光元件和所述分光元件之间；The lens module further includes: a wave plate, the wave plate is arranged between the reflective element and the light splitting element;

所述偏振分光膜用于将入射的非偏振光束分成两束偏振方向不同的偏振光，其中一束偏振光穿过所述偏振分光膜，另一束偏振光被反射，所述波片用于改变被反射的偏振光的偏振方向，使得所述被反射的偏振光经反射元件反射后能再次通过所述偏振分光膜。The polarizing beam splitter film is used to divide the incident non-polarized light beam into two polarized light beams with different polarization directions, wherein one beam of polarized light passes through the polarized beam splitter film, and the other beam of polarized light is reflected, and the wave plate is used for The polarization direction of the reflected polarized light is changed, so that the reflected polarized light can pass through the polarization beam splitting film again after being reflected by the reflective element.
根据权利要求1-4任一项所述的镜头模组，其特征在于，所述第二光轴与所述分光面的夹角为45°。The lens module according to any one of claims 1-4, wherein the angle between the second optical axis and the light splitting surface is 45°.
根据权利要求1-5任一项所述的镜头模组，其特征在于，所述镜头模组还包括：焦距调节组件；所述焦距调节组件与所述透镜组或所述反光元件连接，所述焦距调节组件用于调节所述镜头模组的焦距。The lens module according to any one of claims 1-5, wherein the lens module further comprises: a focal length adjustment component; the focal length adjustment component is connected with the lens group or the reflective element, and the The focal length adjusting component is used to adjust the focal length of the lens module.
根据权利要求6所述的镜头模组，其特征在于，所述透镜组包括：变焦透镜；The lens module according to claim 6, wherein the lens group comprises: a zoom lens;

所述焦距调节组件包括：与所述变焦透镜连接的变焦透镜致动器；The focal length adjustment assembly includes: a zoom lens actuator connected to the zoom lens;

所述变焦透镜致动器用于调节所述变焦透镜的光焦度，实现变焦。The zoom lens actuator is used for adjusting the optical power of the zoom lens to realize zooming.
根据权利要求7所述的镜头模组，其特征在于，所述变焦透镜包括：液体透镜或柔性透镜。The lens module according to claim 7, wherein the zoom lens comprises: a liquid lens or a flexible lens.
根据权利要求6-8任一项所述的镜头模组，其特征在于，所述反光元件包括曲面反射镜；The lens module according to any one of claims 6-8, wherein the reflective element comprises a curved mirror;

所述焦距调节组件包括：与所述反光元件连接的第一反光元件致动器，所述第一反光元件致动器与所述反光元件连接；The focus adjustment assembly includes: a first reflective element actuator connected with the reflective element, the first reflective element actuator being connected with the reflective element;

所述第一反光元件致动器用于驱动所述第一反光元件沿所述第一光轴平移，使得所述第一反光元件的位置发生改变，实现变焦。The first reflective element actuator is used to drive the first reflective element to translate along the first optical axis, so that the position of the first reflective element is changed to realize zooming.
根据权利要求6-9任一项所述的镜头模组，其特征在于，所述反光元件包括柔性反光镜片；The lens module according to any one of claims 6-9, wherein the reflective element comprises a flexible reflective lens;

所述焦距调节组件包括：与所述反光元件连接的第二反光元件致动器，所述第二反光元件致动器与所述反光元件连接；The focus adjustment assembly includes: a second reflective element actuator connected with the reflective element, the second reflective element actuator being connected with the reflective element;

所述第二反光元件致动器用于调节所述反光元件的曲率，实现变焦。The second reflective element actuator is used to adjust the curvature of the reflective element to achieve zooming.
根据权利要求1-10任一项所述的镜头模组，其特征在于，所述镜头模组还包括：防抖组件，所述防抖组件与所述反光元件或所述分光元件连接，所述防抖组件用于对光束进行抖动补偿。The lens module according to any one of claims 1-10, wherein the lens module further comprises: an anti-shake component, the anti-shake component is connected to the reflective element or the light splitting element, and the The anti-shake component is used for jitter compensation for the light beam.
根据权利要求11所述的镜头模组，其特征在于，所述防抖组件包括：The lens module according to claim 11, wherein the anti-shake assembly comprises:

第三反光元件致动器；a third reflective element actuator;

所述第三反光元件致动器与所述反光元件连接，所述第三反光元件致动器用于驱动所述反光元件沿所述第二光轴或第一转动轴平移，或驱动所述反光元件绕所述第二光轴或所述第一转动轴转动，以对所述光束进行抖动补偿，其中，所述第一转动轴为垂直于所述第一光轴和所述第二光轴的转轴。The third reflective element actuator is connected to the reflective element, and the third reflective element actuator is used to drive the reflective element to translate along the second optical axis or the first rotation axis, or to drive the reflective element The element rotates around the second optical axis or the first rotation axis to compensate for the jitter of the light beam, wherein the first rotation axis is perpendicular to the first optical axis and the second optical axis 's shaft.
根据权利要求11所述的镜头模组，其特征在于，所述防抖组件与所述分光元件连接，所述防抖组件包括：The lens module according to claim 11, wherein the anti-shake assembly is connected to the light splitting element, and the anti-shake assembly comprises:

分光元件致动器；Spectroscopic element actuator;

所述分光元件致动器与所述分光元件连接，所述分光元件致动器用于驱动所述分光元件沿所述第二光轴或第一转动轴平移，或驱动所述分光元件绕所述第二光轴或所述第一转动轴转动转动，以对所述光束进行抖动补偿，其中，所述第一转动轴垂直于所述第一光轴和所述第二光轴。The light-splitting element actuator is connected to the light-splitting element, and the light-splitting element actuator is used to drive the light-splitting element to translate along the second optical axis or the first rotation axis, or drive the light-splitting element to rotate around the light-splitting element. The second optical axis or the first rotation axis is rotated to perform jitter compensation on the light beam, wherein the first rotation axis is perpendicular to the first optical axis and the second optical axis.
根据权利要求1-13任一项所述的镜头模组，其特征在于，所述分光元件底部设有吸光材料，所述吸光材料用于吸收所述第一透射光束。The lens module according to any one of claims 1-13, wherein a light absorbing material is provided at the bottom of the light splitting element, and the light absorbing material is used to absorb the first transmitted light beam.
一种摄像模组，其特征在于，包括：图像传感器，以及如权利要求1-14任一项所述的镜头模组，其中，所述图像传感器沿所述第一光轴设置在所述分光元件远离所述反光元件的一侧，所述图像传感器用于接收所述摄像模组的第一透射光束，并将所述第一透射光束包括的光信号转换为电信号；A camera module, characterized by comprising: an image sensor, and the lens module according to any one of claims 1-14, wherein the image sensor is disposed along the first optical axis in the beam splitter a side of the element away from the reflective element, the image sensor is used to receive the first transmitted light beam of the camera module, and convert the optical signal included in the first transmitted light beam into an electrical signal;

其中，所述分光元件的物侧、所述分光元件与所述反光元件之间、或所述分光元件与所述图像传感器之间至少一个位置设有所述透镜组。Wherein, the lens group is provided at at least one position on the object side of the spectroscopic element, between the spectroscopic element and the reflective element, or between the spectroscopic element and the image sensor.
一种终端，其特征在于，包括显示屏，以及如权利要求15所述的摄像模组；A terminal, comprising a display screen and a camera module as claimed in claim 15;

所述显示屏具有显示面以及远离所述显示面板的背面；所述摄像模组位于所述显示屏的背面；The display screen has a display surface and a back side away from the display panel; the camera module is located on the back side of the display screen;

或者，所述显示屏上开设有安装孔，所述摄像模组位于所述安装孔内。Alternatively, the display screen is provided with an installation hole, and the camera module is located in the installation hole.