A periscopic camera module, camera and electronic product

Abstract

The utility model relates to a periscopic camera module, camera and electronic product, periscopic camera module includes the reflection prism subassembly configured to the incident light path turns over and forms L type light path, is located in the incident light path side of reflection prism subassembly's automatic focusing drive mechanism, connects the image sensor displacement mechanism of imaging chip bearing platform, the aperture drive mechanism including the vane group of rotatable adjustment light aperture, wherein, aperture drive mechanism, automatic focusing drive mechanism and image sensor displacement mechanism are sequentially stacked according to L type light path extension direction setting. The utility model passes through the optimization light path and the mechanism layout, especially L type light path construction and the integration of aperture drive mechanism, effectively utilizes the space and realizes the module miniaturization, and integrates aperture adjustment, automatic focusing and image sensor displacement function, makes the module in the imaging quality, the photographic flexibility and environmental adaptability all have the remarkable promotion, brings the more high -quality shooting experience for the user.

Description

Technical Field

[0001] This utility model relates to the field of optical imaging technology, and in particular to a periscope camera module, a camera including the periscope camera module, and an electronic product including the camera. Background Technology

[0002] With the rapid development of consumer electronics, users have increasingly higher demands for the photography and video recording functions of devices. They not only pursue higher image quality and optical zoom capabilities, but also have a strong need for thinner and lighter designs. Periscope camera modules are widely used in portable electronic devices because they can achieve a longer optical focal length in a smaller space.

[0003] Traditional periscope camera modules often use a single reflective element to bend the light path into an L-shape to reduce thickness. However, to improve image quality and shooting flexibility, aperture adjustment (used to control the amount of light and depth of field) has become an important requirement. But in existing linear or partially L-shaped periscope structures, due to space limitations of the module's internal height and components such as the autofocus drive mechanism and image sensor shift mechanism, it is difficult to integrate an independent aperture drive mechanism. This limits the imaging performance and functional expansion of periscope camera modules in complex lighting environments. Utility Model Content

[0004] In view of this, the present invention provides a periscope camera module to alleviate the problem that it is difficult to integrate an aperture drive mechanism in the existing periscope camera module, thereby affecting the imaging quality and functional expansion.

[0005] The objective of this utility model is achieved through the following technical solution: A periscope camera module includes a reflecting prism assembly configured to bend an incident light path into an L-shaped light path, an autofocus drive mechanism disposed on the incident light path side of the reflecting prism assembly, an image sensor displacement mechanism connected to an imaging chip carrier platform, and an aperture drive mechanism including a rotatable and adjustable aperture group, wherein the aperture drive mechanism, the autofocus drive mechanism, and the image sensor displacement mechanism are stacked sequentially in the direction of the L-shaped light path extension.

[0006] This periscope camera module uses a reflective prism assembly to bend the incident light path into an L-shaped light path, effectively utilizing the internal three-dimensional space of the module. Compared to a linear periscope structure, the spatial limitations in the height direction are alleviated, making it possible to integrate more functional components. The autofocus drive mechanism is located on the side of the incident light path, allowing for focus adjustment as soon as light enters the module, which helps shorten the focus travel and improve focus response speed. The image sensor displacement mechanism is connected to the imaging chip carrier platform, enabling displacement compensation of the imaging chip, which helps achieve optical image stabilization and reduces image blur caused by factors such as hand shake. The aperture drive mechanism includes a rotatable and adjustable aperture blade assembly. By rotating the blade assembly to change the size of the aperture, the amount of light entering the module can be flexibly adjusted, optimizing image brightness in different lighting environments (such as strong light or low light scenes). At the same time, the change in aperture helps to adjust the depth of field, making the subject stand out more or the background clearer. The aperture drive mechanism, autofocus drive mechanism, and image sensor displacement mechanism are stacked sequentially along the L-shaped optical path extension direction. This layout conforms to the light propagation path, reduces light loss caused by optical path bending and component blockage, and improves light utilization. At the same time, the arrangement of each mechanism along the optical path direction avoids space conflicts in the direction perpendicular to the optical path, which helps to miniaturize the module and meet the demand of electronic products for thinner and lighter camera modules.

[0007] Preferably, the aperture drive mechanism is rigidly connected to the moving part of the autofocus drive mechanism, so that the aperture drive mechanism moves synchronously with the moving part of the autofocus drive mechanism.

[0008] The rigid connection and synchronous movement of the moving parts of the aperture drive mechanism and autofocus drive mechanism ensure stable relative positions during autofocus, reducing optical path misalignment caused by relative displacement and helping to maintain aperture adjustment accuracy. When the autofocus drive mechanism moves the lens and other components to achieve focus, the aperture drive mechanism moves synchronously, keeping the aperture at the preset optical axis position of the optical system. This avoids uneven light transmission or image shift caused by aperture and lens optical axis deviation due to focusing mechanism movement, thus ensuring accurate light intake adjustment and image stability at different focusing distances. This rigid connection also simplifies the internal transmission structure of the module, reducing additional positioning or adjustment components and helping to reduce module assembly complexity and cost.

[0009] Preferably, the aperture driving mechanism is disposed on the moving part of the autofocus driving mechanism.

[0010] Placing the aperture drive mechanism on the moving parts of the autofocus drive mechanism allows it to be closer to the lens optical system, shortening the optical path distance between the aperture and the lens. This helps reduce light scattering and energy loss during propagation, improving light utilization and thus enhancing image brightness and quality. Simultaneously, this integrated design simplifies the internal spatial layout of the module, reducing its footprint in other areas and facilitating miniaturization and thinning of the module. Furthermore, the synchronous movement of the aperture drive mechanism with the autofocus drive mechanism ensures that the aperture is always in the optimal position matching the lens during autofocus, preventing positional deviations from affecting aperture adjustment accuracy. This improves the stability of the coordination between focus and aperture, guaranteeing consistent image quality across different shooting scenarios.

[0011] Preferably, the reflective prism assembly includes multiple reflective surfaces for achieving light folding.

[0012] The reflective prism assembly, comprising multiple reflective surfaces, achieves light folding, further shortening the straight-line length of the optical path within a limited module space. This facilitates axial size reduction, meeting the design requirements of miniaturized and thinner camera modules in electronic products. Through multiple reflections from these surfaces, the propagation direction of the light path can be flexibly adjusted, resulting in a more rational distribution of the light path within the module, improving space utilization and providing more space for the layout of other functional components (such as autofocus drive mechanisms and aperture drive mechanisms). Simultaneously, a well-designed array of reflective surfaces optimizes the reflection angle of light, reducing aberrations or energy loss that might occur with a single reflective surface, thus improving image sharpness and brightness uniformity. Compared to a single-reflective-surface structure, the light-folding function of multiple reflective surfaces also allows for a longer optical path length within the same module size, creating conditions for improving lens optical performance (such as increasing focal length and improving zoom capabilities).

[0013] Preferably, a periscope camera module includes a reflecting prism assembly configured to bend the incident light path into an L-shaped light path, an autofocus drive mechanism disposed on the incident light path side of the reflecting prism assembly, an image sensor displacement mechanism connected to an imaging chip carrier platform, and an aperture drive mechanism including a rotatable and adjustable aperture group. The autofocus drive mechanism, the aperture drive mechanism, and the image sensor displacement mechanism are stacked sequentially in the direction of the L-shaped light path extension, and the aperture drive mechanism is located in the physical accommodating space formed between the autofocus drive mechanism and the image sensor displacement mechanism.

[0014] This periscope camera module forms an L-shaped optical path using a reflective prism assembly, effectively utilizing the space after the bend to arrange various functional mechanisms. The autofocus drive mechanism, aperture drive mechanism, and image sensor shift mechanism are stacked sequentially along the L-shaped optical path, with the aperture drive mechanism located within the physical space formed by the first two. This design fully utilizes the internal gaps of the module, avoids component layout conflicts, significantly improves space utilization, and contributes to the module's compact design. The aperture drive mechanism, positioned between the autofocus drive mechanism and the image sensor shift mechanism, is located in the middle of the optical path. It can adjust the amount of light transmitted after the light passes through the lens for focusing but before reaching the image sensor. Its closer position to the imaging end allows for precise control of the amount of light reaching the sensor, optimizing imaging results. Simultaneously, the sequential arrangement of each mechanism along the optical path ensures a smoother light propagation path, reducing light loss caused by component obstruction and improving light utilization. Furthermore, the relatively independent layout of each mechanism reduces mutual vibration interference, contributing to improved stability of functions such as autofocus, aperture adjustment, and image sensor shift, thereby ensuring the module's overall shooting performance.

[0015] Preferably, the aperture driving mechanism is fixedly mounted on the reflective prism assembly and does not move with the autofocus driving mechanism.

[0016] The aperture drive mechanism is fixedly mounted on the reflective prism assembly and does not move with the autofocus drive mechanism. This maintains the stability of the aperture position, avoiding vibration or displacement errors caused by follow-up movement, and helps maintain the long-term accuracy and reliability of the aperture adjustment. The fixed mounting method simplifies the connection structure between the aperture drive mechanism and the external control circuit, reduces the risk of pulling or tangling the connecting wires by moving parts, and improves the electrical connection stability and lifespan of the module. Simultaneously, the reflective prism assembly typically has high structural rigidity. Fixing the aperture drive mechanism to it utilizes the stability of the prism assembly as support, enhancing the installation firmness of the aperture mechanism, ensuring the consistency between the aperture optical center and the optical path center, and reducing the impact of assembly errors on image quality. Especially when the autofocus mechanism moves frequently, the fixed aperture position prevents optical path misalignment and ensures the accuracy of light intake adjustment.

[0017] Preferably, the aperture driving mechanism is disposed between the autofocus driving mechanism and the reflective prism assembly.

[0018] The aperture drive mechanism is positioned between the autofocus drive mechanism and the reflecting prism assembly, at the front end of the incident light path. It adjusts the amount of light transmitted before the light enters the reflecting prism and is deflected, helping to reduce unnecessary energy loss after reflection and improving light utilization, thus enhancing image brightness and quality. This position utilizes the natural gap between the autofocus drive mechanism and the reflecting prism assembly, avoiding the occupation of space in other directions of the module, contributing to a compact overall structure and meeting the miniaturization requirements of electronic products for camera modules. Furthermore, the aperture's location in this position ensures a more stable relative position with the lens and reflecting prism, reducing optical path misalignment caused by accumulated assembly errors. This guarantees the alignment accuracy of the aperture center with the lens optical axis and the prism's reflective surface, improving the consistency of the optical system and ensuring the stability of light transmission adjustment and the reliability of imaging effects under different operating conditions.

[0019] Preferably, the driving source of the aperture driving mechanism is a voice coil motor, a shape memory alloy actuator, or a piezoelectric actuator.

[0020] A variety of drive options are available to suit different application scenarios: voice coil motors offer fast response and precise control, improving aperture adjustment speed and accuracy; shape memory alloy actuators utilize temperature changes for driving, offering low power consumption and quiet operation; and piezoelectric actuators achieve micron-level displacement control based on the piezoelectric effect, enhancing the precision and reliability of aperture opening and closing. This flexibility helps optimize module energy efficiency, extend device battery life, and reduce heat generation.

[0021] Preferably, the blade assembly comprises a plurality of arc-shaped blades that can open and close about a rotational central axis.

[0022] Smooth and adjustable aperture control is achieved by opening and closing curved blades around a central axis of rotation. The curved design helps to distribute light flux evenly, reduce optical distortion, and may improve aperture opening and closing response speed, optimizing light intake adjustment accuracy to support stable exposure control.

[0023] Preferably, the image sensor displacement mechanism is configured to drive the imaging chip to move in a plane.

[0024] Optical image stabilization is achieved by moving the imaging chip within a plane, compensating for image blur caused by hand shake or external vibrations. During shooting, the planar displacement of the imaging chip adjusts the light path's landing point in real time, counteracting minor shakes and improving image sharpness and detail retention, making it particularly suitable for long exposures or moving scenes. Combined with an L-shaped optical path layout, it avoids the off-centering problem caused by traditional prism motor image stabilization, maintaining overall optical performance stability.

[0025] Preferably, the reflective surface of the reflective prism assembly integrates optical image stabilization compensation function.

[0026] Hand shake compensation is directly handled via a reflective surface at the optical path inflection point, reducing the need for additional image stabilization components. The integrated design simplifies the module structure, potentially improving stabilization response speed and overall reliability while maintaining imaging stability.

[0027] Preferably, the imaging chip is a CMOS image sensor.

[0028] Leveraging the low power consumption and high integration advantages of CMOS technology, the energy efficiency and performance of camera modules are improved: its fast readout capability and low noise characteristics support high-speed continuous shooting and high-definition video recording, reducing power consumption to extend device battery life and allowing for more compact designs. CMOS sensors offer excellent compatibility, simplifying the interface with processing units and facilitating rapid data transmission; mature mass production reduces costs while providing good low-light sensitivity and dynamic range, enhancing image quality.

[0029] Preferably, a camera includes the driving device described above.

[0030] By integrating the aforementioned driving devices, and fully utilizing the positional advantages of the aperture drive mechanism and the multi-reflective surface light folding function of the reflective prism assembly, multiple functions are achieved simultaneously while ensuring miniaturization: the fixed setting of the aperture drive mechanism improves the stability of light transmission adjustment, the multi-reflective surface design shortens the axial length to adapt to the trend of thinner and lighter electronic products; the optimized layout of each mechanism reduces mutual interference and improves shooting stability; the aperture adjustment adapts to different lighting environments; and the multi-reflective surface folding helps improve optical performance, enabling the camera to capture high-quality images in low-light, distant scenes, and other scenarios, thereby enhancing its overall competitiveness.

[0031] Preferably, an electronic product includes the driving device described above.

[0032] The integrated periscope camera module, featuring aperture adjustment, autofocus, and light folding, significantly enhances shooting performance without substantially increasing thickness. The L-shaped optical path design and compact layout adapt to complex internal spaces, contributing to a slim and lightweight appearance and comfortable grip. Aperture adjustment adapts to both strong and low light environments, while multi-reflective folding technology may support enhanced zoom capabilities to meet the needs of long-distance shooting. Stable operation of all mechanisms improves product reliability, reduces the risk of malfunctions, extends service life, and ultimately enhances user satisfaction and market appeal.

[0033] The periscope camera module provided by this utility model brings many beneficial effects through its unique structural design, as follows: First, by using a reflective prism assembly to bend the incident light path into an L-shaped light path, the internal three-dimensional space of the module can be effectively utilized, alleviating the spatial limitations in the height direction. This makes it possible to integrate more functional components such as the aperture drive mechanism, which helps to enhance functionality while maintaining or reducing the module size.

[0034] Secondly, by stacking the aperture drive mechanism, autofocus drive mechanism, and image sensor displacement mechanism sequentially along the L-shaped optical path extension direction, which aligns with the light propagation path, energy loss caused by light bending or obstruction can be reduced, thus improving light utilization. Simultaneously, arranging the mechanisms along the optical path avoids vertical spatial conflicts, facilitating miniaturization and thinner design of the module and meeting the compactness requirements of electronic products.

[0035] Furthermore, the autofocus drive mechanism is located on the incident light path side, allowing for focus adjustment in the early stages of light entry. This helps shorten the focus travel distance and improve focus response speed and accuracy. The image sensor displacement mechanism is connected to the imaging chip carrier platform, enabling displacement compensation of the imaging chip. This helps achieve optical image stabilization, reduces image blur caused by vibration, and improves image clarity.

[0036] Of particular importance is the introduction and rational layout of the aperture drive mechanism, which is a highlight of this design. Its rotatable, adjustable aperture blade assembly can flexibly change the aperture size, optimizing the amount of light entering the camera according to different lighting conditions, avoiding overexposure or underexposure, and enhancing the artistic appeal of the photograph by adjusting the depth of field. Integrating the aperture drive mechanism into the stacked structure of the L-shaped optical path utilizes the spatial advantages of the L-shaped layout, solving the problem of traditional periscope modules being unable to integrate independent aperture drive mechanisms due to space constraints.

[0037] In summary, this utility model optimizes the optical path and mechanism layout, especially the L-shaped optical path construction and the integration of the aperture drive mechanism, effectively utilizing space to achieve module miniaturization. It also integrates aperture adjustment, autofocus, and image sensor shift functions, significantly improving the module's imaging quality, shooting flexibility, and environmental adaptability, thus providing users with a better shooting experience. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a three-dimensional structural diagram of the periscope camera module of Embodiment 1 of this utility model (aperture drive mechanism omitted).

[0040] Figure 2 This is a three-dimensional structural diagram of the periscope camera module of Embodiment 1 of this utility model from another perspective (aperture drive mechanism omitted).

[0041] Figure 3 This is a head-up view of the periscope camera module in Embodiment 1 of this utility model (aperture drive mechanism omitted).

[0042] Figure 4 This is a schematic diagram of the periscope camera module of Embodiment 1 of this utility model.

[0043] Figure 5 This is a schematic diagram of the optical path of the periscope camera module in Embodiment 1 of this utility model.

[0044] Figure 6 This is an exploded view of the periscope camera module of Embodiment 1 of this utility model.

[0045] Figure 7 This is an exploded view of the periscope camera module of Embodiment 2 of this utility model.

[0046] Labeling explanation: 1. Autofocus drive mechanism, 2. Aperture drive mechanism, 3. Image sensor displacement mechanism, 4. Reflective prism assembly. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0049] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0051] The technical solutions in this application will now be described with reference to the accompanying drawings. Example 1

[0052] This embodiment provides a periscope camera module, including a reflective prism assembly 4 configured to bend the incident light path into an L-shaped light path, an autofocus drive mechanism 1 disposed on the incident light path side of the reflective prism assembly 4, an image sensor displacement mechanism 3 connected to the imaging chip carrier platform, and an aperture drive mechanism 2 including a blade group with a rotatable adjustable light transmission aperture. The aperture drive mechanism 2, the autofocus drive mechanism 1, and the image sensor displacement mechanism 3 are stacked sequentially in the direction of the L-shaped light path extension.

[0053] This periscope camera module uses a reflecting prism assembly 4 to bend the incident light path into an L-shaped light path, effectively utilizing the internal three-dimensional space of the module. Compared to a linear periscope structure, the spatial limitations in the height direction are alleviated, making it possible to integrate more functional components. The autofocus drive mechanism 1 is located on the incident light path side, allowing for focus adjustment as soon as light enters the module, which helps shorten the focus travel and improve focus response speed. The image sensor displacement mechanism 3 is connected to the imaging chip carrier platform, enabling displacement compensation of the imaging chip, which helps achieve optical image stabilization and reduces image blur caused by factors such as hand shake. The aperture drive mechanism 2 includes a rotatable and adjustable aperture blade group. By rotating the blade group to change the size of the aperture, the amount of light entering the module can be flexibly adjusted, optimizing image brightness in different lighting environments (such as strong light or low light scenes). At the same time, the change in aperture helps to adjust the depth of field, making the subject stand out more or the background clearer. The aperture drive mechanism 2, the autofocus drive mechanism 1, and the image sensor displacement mechanism 3 are stacked sequentially in the L-shaped optical path extension direction. This layout conforms to the light propagation path, which can reduce light loss caused by optical path bending and component blockage, and improve light utilization. At the same time, the arrangement of each mechanism along the optical path direction avoids space occupation conflicts in the direction perpendicular to the optical path, which helps to miniaturize the module and meet the needs of electronic products for thinner and lighter camera modules.

[0054] In this embodiment, the aperture drive mechanism 2 is rigidly connected to the moving part of the autofocus drive mechanism 1, so that the aperture drive mechanism 2 moves synchronously with the moving part of the autofocus drive mechanism 1.

[0055] The aperture drive mechanism 2 and the autofocus drive mechanism 1 have their moving parts rigidly connected and move synchronously, ensuring that their relative positions remain stable during autofocus. This reduces optical path offset caused by relative displacement and helps maintain aperture adjustment accuracy. When the autofocus drive mechanism 1 moves the lens and other components to achieve focus, the aperture drive mechanism 2 moves synchronously, keeping the aperture at the preset optical axis position of the optical system. This avoids uneven light transmission or image offset caused by the aperture deviating from the lens optical axis due to the movement of the focusing mechanism, thus ensuring the accuracy of light intake adjustment and image stability at different focusing distances. This rigid connection also simplifies the internal transmission structure of the module, reduces additional positioning or adjustment components, and helps reduce the assembly complexity and cost of the module.

[0056] In this embodiment, the aperture drive mechanism 2 is disposed on the moving part of the autofocus drive mechanism 1.

[0057] By placing the aperture drive mechanism 2 on the moving parts of the autofocus drive mechanism 1, it is possible to bring the aperture drive mechanism 2 closer to the lens optical system, shortening the optical path distance between the aperture and the lens. This helps reduce light scattering and energy loss during propagation, improving light utilization and thus enhancing image brightness and quality. Simultaneously, this integrated design simplifies the internal spatial layout of the module, reducing its footprint in other areas and facilitating miniaturization and thinning of the module. Furthermore, the synchronous movement of the aperture drive mechanism 2 with the moving parts of the autofocus drive mechanism 1 ensures that the aperture is always in the optimal position matching the lens during autofocus, preventing positional deviations from affecting the aperture adjustment accuracy. This improves the stability of the coordinated operation of focus and aperture, guaranteeing consistent imaging results across different shooting scenarios.

[0058] In this embodiment, the reflective prism assembly 4 includes multiple reflective surfaces for achieving light folding.

[0059] The reflective prism assembly 4 incorporates multiple reflective surfaces to fold light, further shortening the straight-line length of the optical path within a limited module space. This facilitates axial size reduction, meeting the design requirements of miniaturized and thinner camera modules in electronic products. Through multiple reflections from these surfaces, the propagation direction of the light path can be flexibly adjusted, resulting in a more rational distribution of the light path within the module, improving space utilization and providing more space for the layout of other functional components (such as the autofocus drive mechanism 1 and the aperture drive mechanism 2). Simultaneously, the rationally designed multiple reflective surfaces optimize the reflection angle of light, reducing aberrations or light energy loss that may occur with a single reflective surface, thus improving image sharpness and brightness uniformity. Compared to a single reflective surface structure, the light-folding function of multiple reflective surfaces can also achieve a longer optical path length within the same module size, creating conditions for improving lens optical performance (such as increasing focal length and improving zoom capabilities).

[0060] In this embodiment, the driving source of the aperture driving mechanism 2 is a voice coil motor, a shape memory alloy actuator, or a piezoelectric actuator.

[0061] The type of drive source for the aperture drive mechanism 2 is limited, including a voice coil motor, a shape memory alloy actuator, or a piezoelectric actuator. These options provide a diverse range of drive solutions to meet the needs of different application scenarios. Voice coil motors, with their fast response and precise control characteristics, can potentially improve the speed and accuracy of aperture adjustment in high dynamic range shooting environments; shape memory alloy actuators utilize temperature changes for drive, offering advantages such as low power consumption and quiet operation, making them suitable for noise-sensitive devices such as smartphones; piezoelectric actuators, based on the piezoelectric effect, can achieve micron-level displacement control, enhancing the precision and reliability of aperture opening and closing, especially avoiding fluctuations in light intake under low-light conditions. This flexibility helps optimize the module's energy efficiency ratio, such as extending battery life in mobile devices while reducing heat generation.

[0062] In this embodiment, the blade assembly includes multiple arc-shaped blades that can open and close around a rotational central axis.

[0063] By incorporating multiple curved blades that open and close around a central axis of rotation, smooth and adjustable aperture control is achieved. The curved blade design helps to distribute light flux evenly, reduces optical distortion, and may improve the aperture's opening and closing response speed. This optimizes the accuracy of light intake adjustment and supports more stable exposure control.

[0064] In this embodiment, the image sensor displacement mechanism 3 is configured to drive the imaging chip to move in a plane.

[0065] The image sensor displacement mechanism 3, configured to drive the imaging chip to move within a plane, provides effective optical image stabilization, which helps compensate for image blur caused by hand shake or external vibrations. During shooting, the planar displacement of the imaging chip adjusts the light path landing point in real time, counteracting minor shakes and thus improving image sharpness and detail retention, especially in long exposures or moving scenes. For example, when using slower shutter speeds in low-light environments, this displacement mechanism can reduce noise and motion blur, ensuring the sharpness of the output image; at the same time, combined with the L-shaped optical path layout, it avoids the off-centering problem caused by traditional prism motor image stabilization, maintaining the stability of overall optical performance.

[0066] In this embodiment, the reflective surface of the reflective prism assembly 4 integrates optical image stabilization compensation function.

[0067] By integrating optical image stabilization compensation into the reflective surface of the reflective prism assembly 4, hand shake compensation is directly addressed at the optical path inflection point, which helps reduce the need for additional image stabilization components. This integrated design simplifies the module structure, potentially improving stabilization response speed and overall reliability, while maintaining imaging stability.

[0068] In this embodiment, the imaging chip is a CMOS image sensor.

[0069] The use of a CMOS image sensor as the imaging chip leverages the low power consumption and high integration of CMOS technology, contributing to improved energy efficiency and performance of the entire camera module. CMOS sensors, with their fast readout and low noise characteristics, can support high-speed continuous shooting and high-definition video recording while reducing power consumption; in mobile devices, this extends battery life and allows for more compact design integration. Furthermore, the broad compatibility of CMOS sensors simplifies the interface between the module and the processing unit, enabling fast data transmission via standard protocols and improving image processing efficiency. This choice can also reduce costs, as CMOS is a mature and economical technology, easy to mass-produce, while offering good low-light sensitivity and dynamic range, enhancing image quality. Overall, CMOS image sensors enhance the practicality of the module, enabling high-performance imaging in consumer electronics without adding extra complexity. Example 2

[0070] In this embodiment, a periscope camera module includes a reflective prism assembly 4 configured to bend the incident light path into an L-shaped light path, an autofocus drive mechanism 1 disposed on the incident light path side of the reflective prism assembly 4, an image sensor displacement mechanism 3 connected to the imaging chip carrier platform, and an aperture drive mechanism 2 including a rotatable and adjustable aperture group. The autofocus drive mechanism 1, the aperture drive mechanism 2, and the image sensor displacement mechanism 3 are stacked sequentially in the direction of the L-shaped light path extension, and the aperture drive mechanism 2 is located in the physical accommodating space formed between the autofocus drive mechanism 1 and the image sensor displacement mechanism 3.

[0071] This periscope camera module forms an L-shaped optical path through the reflective prism assembly 4, effectively utilizing the space after the bend to arrange the various functional mechanisms. The autofocus drive mechanism 1, aperture drive mechanism 2, and image sensor shift mechanism 3 are stacked sequentially along the L-shaped optical path, with the aperture drive mechanism 2 located within the physical space formed by the first two. This design fully utilizes the internal gap space of the module, avoids component layout conflicts, significantly improves space utilization, and contributes to the compact design of the module. The aperture drive mechanism 2 is located between the autofocus drive mechanism 1 and the image sensor shift mechanism 3, in the middle of the optical path. It can adjust the amount of light transmitted after the light passes through the lens for focusing but before reaching the image sensor. The adjustment position is closer to the imaging end, which is beneficial for accurately controlling the amount of light reaching the sensor and optimizing the imaging effect. At the same time, the sequential arrangement of each mechanism along the optical path makes the light propagation path smoother, reduces light loss caused by component obstruction, improves light utilization, and the relatively independent layout of each mechanism reduces mutual vibration interference, which helps to improve the stability of functions such as autofocus, aperture adjustment, and image sensor shift, thereby ensuring the overall shooting performance of the module.

[0072] In this embodiment, the aperture driving mechanism 2 is fixedly mounted on the reflective prism assembly 4 and does not move with the autofocus driving mechanism 1.

[0073] The aperture drive mechanism 2 is fixedly mounted on the reflective prism assembly 4 and does not move with the autofocus drive mechanism 1. This maintains the stability of the aperture position and avoids vibration or displacement errors caused by follow-up movement, thus helping to maintain the long-term accuracy and reliability of the aperture adjustment. The fixed mounting method simplifies the connection structure between the aperture drive mechanism 2 and the external control circuit, reduces the risk of pulling or tangling the connecting wires by moving parts, and improves the electrical connection stability and service life of the module. Simultaneously, the reflective prism assembly 4 typically has high structural rigidity. Fixing the aperture drive mechanism 2 there utilizes the stability of the prism assembly as support, enhancing the installation firmness of the aperture mechanism, ensuring the consistency between the aperture optical center and the optical path center, and reducing the impact of assembly errors on image quality. Especially when the autofocus mechanism moves frequently, the fixed aperture position prevents optical path offset and ensures the accuracy of light intake adjustment.

[0074] In this embodiment, the aperture driving mechanism 2 is disposed between the autofocus driving mechanism 1 and the reflective prism assembly 4.

[0075] The aperture drive mechanism 2 is positioned between the autofocus drive mechanism 1 and the reflecting prism assembly 4, at the front end of the incident light path. It adjusts the amount of light transmitted before the light enters the reflecting prism and is deflected, helping to reduce unnecessary energy loss after reflection and improving light utilization, thus enhancing image brightness and quality. This position utilizes the natural gap between the autofocus drive mechanism 1 and the reflecting prism assembly 4, avoiding the occupation of space in other directions of the module, promoting a compact overall structure and meeting the miniaturization requirements of electronic products for camera modules. Furthermore, the aperture's location in this position ensures a more stable relative position with the lens and reflecting prism, reducing optical path offset caused by accumulated assembly errors, guaranteeing the alignment accuracy of the aperture center with the lens optical axis and the prism's reflective surface, improving the consistency of the optical system, and ensuring the stability of light transmission adjustment and the reliability of imaging effects under different operating conditions.

[0076] In this embodiment, the reflective prism assembly 4 includes multiple reflective surfaces for achieving light folding.

[0077] The reflective prism assembly 4 incorporates multiple reflective surfaces to fold light, effectively shortening the module's length in the straight line through multiple reflections. This enables a thinner and lighter design, adapting to the strict space constraints of electronic products. The multiple reflective surfaces allow for more flexible light path routing within the module, adjusting the number and angle of reflections according to the layout requirements of other functional components, improving space utilization, and facilitating the integration of more functional mechanisms such as autofocus and aperture adjustment. Simultaneously, the rationally designed multiple reflective surfaces optimize the light propagation path, reducing aberrations that may occur with a single reflective surface, and improving image sharpness and color reproduction. Compared to a single reflective surface, multiple folds also allow for a longer light path within the same module size, contributing to improved optical zoom capabilities or focal lengths of the lens. This enables the module to meet the shooting needs of more scenarios, enhancing the product's market competitiveness. Example 3

[0078] In this embodiment, a camera includes a driving device as described in Embodiment 1 or 2.

[0079] This camera integrates the aforementioned driving mechanism, fully utilizing the positional advantage of the aperture drive mechanism 2 (located between the autofocus drive mechanism 1 and the reflective prism assembly 4) and the multi-reflective surface light-folding function of the reflective prism assembly 4. This ensures both camera miniaturization and the coordinated operation of multiple key functions. The fixed configuration of the aperture drive mechanism 2 improves the stability of light transmission adjustment, while the multi-reflective surface design shortens the axial length of the camera, facilitating its integration into electronic products and adapting to the trend of thinner and lighter designs. Simultaneously, the optimized layout of the various mechanisms within the driving device reduces mutual interference, improving the camera's shooting stability. The aperture adjustment function adapts to different lighting environments, and the multi-reflective surface light-folding enhances optical performance, enabling the camera to capture high-quality images in various scenarios such as low light and distant scenes, thus strengthening the camera's overall competitiveness. Example 4

[0080] In this embodiment, an electronic product includes a driving device as described in Embodiment 1 or 2.

[0081] This electronic product incorporates the aforementioned camera, integrating a periscope camera module with aperture adjustment, autofocus, and light-folding capabilities. This significantly enhances shooting performance without substantially increasing the product's thickness. The L-shaped optical path design and compact structural layout adapt to the complex internal space of the electronic product, contributing to a slim and lightweight design and improving user grip. The aperture adjustment function enables the product to capture appropriately bright images in both strong and low light conditions. Multi-reflective surface light-folding technology may support stronger zoom capabilities, meeting users' needs for long-distance shooting and enhancing the product's market appeal. Simultaneously, the stable operation and optimized layout of the various mechanisms within the drive unit improve the product's reliability, reduce the risk of failure, extend its lifespan, and ultimately increase user satisfaction and trust.

[0082] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A periscope camera module, characterized in that, include: The reflective prism assembly (4) is configured to bend the incident light path to form an L-shaped light path; An autofocus drive mechanism (1) is located on the incident light path side of the reflective prism assembly; Image sensor displacement mechanism (3) is connected to the imaging chip carrier platform; The aperture drive mechanism (2) includes a blade assembly with a rotatable adjustable aperture diameter; The aperture driving mechanism (2), the autofocus driving mechanism (1) and the image sensor displacement mechanism (3) are stacked sequentially in the L-shaped optical path extension direction; or the autofocus driving mechanism (1), the aperture driving mechanism (2) and the image sensor displacement mechanism (3) are stacked sequentially in the L-shaped optical path extension direction.

2. The periscope camera module as described in claim 1, characterized in that, The aperture drive mechanism (2) is rigidly connected to the moving part of the autofocus drive mechanism (1), so that the aperture drive mechanism (2) moves synchronously with the moving part of the autofocus drive mechanism (1).

3. The periscope camera module as described in claim 2, characterized in that, The aperture drive mechanism (2) is disposed on the moving part of the autofocus drive mechanism (1).

4. The periscope camera module as described in claim 1, characterized in that, The aperture driving mechanism (2) is located in the physical space formed between the autofocus driving mechanism (1) and the image sensor displacement mechanism (3).

5. The periscope camera module as described in claim 4, characterized in that, The aperture drive mechanism (2) is fixedly mounted on the reflective prism assembly (4) and does not move with the autofocus drive mechanism (1).

6. The periscope camera module as described in claim 1, characterized in that, The aperture driving mechanism (2) is disposed between the autofocus driving mechanism (1) and the reflective prism assembly (4).

7. The periscope camera module as described in claim 1, characterized in that, The reflective prism assembly (4) includes multiple reflective surfaces for achieving light folding.

8. The periscope camera module as described in claim 1, characterized in that, The driving source for the aperture driving mechanism is a voice coil motor, a shape memory alloy actuator, or a piezoelectric actuator.

9. A camera, characterized in that, Includes the periscope camera module as described in any one of claims 1-8.

10. An electronic product, characterized in that, Includes the camera as described in claim 9.

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