WO2023155898A1

WO2023155898A1 - Lens module and electronic device

Info

Publication number: WO2023155898A1
Application number: PCT/CN2023/076873
Authority: WO
Inventors: 赵恒伟
Original assignee: 维沃移动通信有限公司
Priority date: 2022-02-21
Filing date: 2023-02-17
Publication date: 2023-08-24
Also published as: CN114442255A; CN114442255B

Abstract

A lens module (900) and an electronic device (1000): the lens module (900) comprises a flexible lens (100), a corrugated ring (200), an extrusion driving mechanism (300), and a photosensitive apparatus (400); the flexible lens (100) and the photosensitive apparatus (400) are sequentially arranged along the direction of an optical axis of the lens module (900); the corrugated ring (200) is sleeved on the flexible lens (100) and surrounds the optical axis; the corrugated ring (200) is provided with a corrugated structure (210); the corrugated ring (200) is in driving cooperation with the extrusion driving mechanism (300); when the extrusion driving mechanism (300) is started up, the extrusion driving mechanism (300) drives the corrugated ring (200) to deform so as to extrude the flexible lens (100); the corrugated structure (210) is subjected to corrugated deformation along with the corrugated ring (200) so as to be in a corrugated state; the corrugated deformation is along the circumferential direction of the corrugated ring (200); and when the flexible lens (100) is extruded by the corrugated ring (200), the radius of curvature of the flexible lens (100) is reduced.

Description

Lens module and electronic equipment

cross reference

The present invention claims the priority of the Chinese patent application submitted to the China Patent Office on February 21, 2022, with the application number 202210158994.4 and the title of the invention "lens module and electronic equipment". The entire content of this application is incorporated by reference in the present invention middle.

technical field

The present application relates to the technical field of electronic equipment, in particular to a lens module and electronic equipment.

Background technique

As a shooting and imaging device, lens modules are widely used in electronic equipment such as mobile phones and notebook computers. The lens module can adjust the optimal imaging distance and field of view (Field of View, FOV) according to the distance of the object.

In related technologies, the adjustment structure adopted for adjusting the field of view of the lens module is relatively complicated, which will make the adjustment method cumbersome and increase the size of the lens module.

Contents of the invention

The present invention proposes a lens module and electronic equipment to solve the problem in the related art that the adjustment structure adopted by the adjustment of the field angle of the lens module is relatively complicated.

In one aspect, the present application discloses a lens module, including a flexible lens, a wrinkle ring, a squeeze drive mechanism, and a photosensitive device; the flexible lens and the photosensitive device are sequentially arranged along the optical axis of the lens module; The lens and surrounds the optical axis; the fold ring is provided with a fold structure; the fold ring is driven and matched with the extrusion driving mechanism; when the extrusion driving mechanism is activated, the extrusion driving mechanism drives the folds The ring is deformed to squeeze the flexible lens; the wrinkle structure is wrinkled and deformed with the wrinkled ring to be in a wrinkled state; the wrinkled deformation is along the circumference of the wrinkled ring; the radius of curvature of the flexible lens is reduced when the flexible lens is squeezed by the wrinkled ring .

In another aspect, the present application discloses an electronic device, including a lens module.

The beneficial effects of the present invention are as follows:

This application optimizes the structure of the lens module, specifically setting the lens module including a flexible lens, a wrinkle ring, a squeeze drive mechanism, and a photosensitive device; the flexible lens and the photosensitive device are arranged in sequence along the optical axis of the lens module; the wrinkle ring Set on the flexible lens and surround the optical axis; the pleat ring is provided with a pleat structure; the pleat ring is driven and matched with the squeeze drive mechanism; when the squeeze drive mechanism is activated, the squeeze drive mechanism drives the pleat ring to deform to squeeze the flexible lens, Therefore, the field angle of the lens module can be adjusted through the deformation of the flexible lens.

Wherein, the wrinkle structure undergoes wrinkle deformation along with the wrinkle ring to be in a wrinkle state; the wrinkle deformation is along the circumferential direction of the wrinkle ring; the extrusion direction of the wrinkle ring to the flexible lens intersects with the direction of the optical axis.

Based on this scheme, the adjustment structure of the field of view angle in the lens module is simplified, and the overall size of the lens module is reduced, especially when the lens module is a laser ranging lens module and installed in an electronic device, the laser measuring The distance lens module can have good adaptability and compatibility with other camera modules, thereby improving the overall imaging effect.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

Fig. 1 is the lens module when the field of view angle is not adjusted in the first embodiment disclosed in the embodiment of the present invention structure diagram;

FIG. 2 is a structural diagram of the lens module when the field of view is adjusted in the first embodiment disclosed in the embodiment of the present invention;

Fig. 3 is a schematic diagram of cooperation between a traction ring and a wrinkle ring disclosed in an embodiment of the present invention;

Fig. 4 is an unextruded state view of another traction ring and a wrinkle ring disclosed in an embodiment of the present invention;

Fig. 5 is an extrusion state diagram of another traction ring and a wrinkle ring disclosed in an embodiment of the present invention;

6 is a structural diagram of the lens module when the field of view angle is not adjusted in the second embodiment disclosed in the embodiment of the present invention;

7 is a structural diagram of the lens module when the field of view is adjusted in the second embodiment disclosed in the embodiment of the present invention;

Fig. 8 is a schematic diagram of the operation of the electronic device during shooting in the embodiment disclosed in the embodiment of the present invention;

Fig. 9 is a schematic diagram of zoom-in operation performed by electronic equipment in the embodiment disclosed in the embodiment of the present invention;

Fig. 10 is a diagram of the first cooperation mode of the lens module and the camera module in the electronic device disclosed in the embodiment of the present invention;

Fig. 11 is a diagram of the second cooperation mode of the lens module and the camera module in the electronic device disclosed in the embodiment of the present invention;

Fig. 12 is a diagram of a third cooperation mode of the lens module and the camera module in the electronic device disclosed in the embodiment of the present invention.

Explanation of reference signs:
100-flexible lens,
200-fold ring,
210-fold structure, 220-basal ring,
300-extrusion drive mechanism,
310-traction ring, 311-rope body, 312-ring body, 313-ring joint, 314-torsion spring part,
320-drive unit,
331-the first drive power supply,
400-photosensitive device,
410-laser transmitter, 420-laser receiver,
500-base, 600-second protective lens, 700-first protective lens, 800-camera module, 900-
Lens module, 1000-electronic equipment.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The present application discloses a lens module 900. The lens module 900 can be any optical lens module used for shooting and imaging, or a lens module with auxiliary functions, such as a laser ranging lens.

In the related art, the adjustment structure and adjustment method of the lens module related to the shooting distance or measuring distance are relatively cumbersome. This application has optimized the design for this situation, and will be described in detail below.

Please refer to FIGS. 1-7 , the lens module 900 may include a flexible lens 100 , a wrinkle ring 200 , a squeeze driving mechanism 300 and a photosensitive device 400 . Among them, the flexible lens 100 is used to process the passing light signal accordingly, so as to change the path of the light and then adjust the angle of view. At the same time, the flexible lens 100 It is flexible and can be deformed to change its own radius of curvature when stressed. For example, the flexible lens 100 is made of silicone. The photosensitive device 400 can be a photosensitive chip and other devices used for imaging, so as to convert the received optical signal into an electrical signal corresponding to the optical signal, and the photosensitive device 400 can also be a device such as a laser sensor for measuring the shooting distance. The flexible lens 100 and the photosensitive device 400 can be arranged sequentially along the optical axis of the lens module 900 to process the optical signal because they are used to emit laser signals and receive feedback reflected signals.

The wrinkle ring 200 is sleeved on the flexible lens 100 and surrounds the optical axis. The wrinkle ring 200 is provided with a wrinkle structure 210 , which is a redundant part of the wrinkle ring 200 , and can realize deformation of the wrinkle ring 200 more conveniently. The wrinkle ring 200 is driven in cooperation with the extrusion driving mechanism 300 , and the extrusion driving mechanism 300 can provide the power required for deformation of the wrinkle ring 200 , so as to adjust the focal length and field angle required by the lens module 900 when shooting.

Specifically, when the squeezing driving mechanism 300 is activated, the squeezing driving mechanism 300 drives the wrinkle ring 200 to deform to squeeze the flexible lens 100 . The wrinkle structure 210 undergoes wrinkle deformation along with the wrinkle ring 200 to be in a wrinkle state; the wrinkle deformation is along the circumferential direction of the wrinkle ring 200 .

It can be understood that the shape of the wrinkled ring 200 is generally a circular ring or an elliptical ring. When the wrinkled structure 210 is in a wrinkled state, the wrinkled ring 200 will retract as a whole, and the orthographic projection of the area surrounded by the wrinkled ring 200 along the optical axis will decrease. , so as to generate a radial extrusion force on the periphery of the flexible lens 100, and the direction of the extrusion force may be perpendicular to the optical axis direction.

When the flexible lens 100 is squeezed by the wrinkle ring 200 , the shape of the flexible lens 100 shrinks, the radial size of the flexible lens 100 decreases, the thickness increases, and the radius of curvature of the flexible lens 100 decreases.

When the radius of curvature of the flexible lens 100 decreases, the angle of view of the lens module 900 decreases, so that when the lens module 900 is an optical lens for imaging, it will have a farther shooting distance. When the group 900 is a laser detection lens, the emitted light can be more concentrated, so as to have a longer detection distance.

Conversely, when the squeeze on the flexible lens 100 is released, the radius of curvature of the flexible lens 100 will increase to restore the flat state at the initial moment, and the field of view angle of the lens module 900 will increase at this time. The shooting distance or detection distance of the lens module 900 will also be shortened.

It can be seen that the extrusion driving mechanism 300 squeezes the flexible lens 100 through the wrinkle ring 200, and by adjusting the degree of extrusion of the wrinkle ring 200, the radius of curvature of the flexible lens 100 is adjusted, so as to adjust the angle of view of the lens module 900. function, and then achieve the purpose of adjusting the shooting distance or detection distance of the lens module 900. Compared with the related art, the structure and adjustment methods of the lens module 900 of the present application have been simplified.

It should be noted here that when the flexible lens 100 is squeezed, the portion of the flexible lens 100 with a reduced radius of curvature should be the surface on the flexible lens 100 for processing light. Taking what is shown in FIG. 1 and FIG. 2 as an example, the surface of the flexible lens 100 can be regarded as including a first surface, a second surface, and a third peripheral surface. Wherein, the first surface and the second surface are sequentially arranged along the optical axis direction, and are used for processing light, thereby adjusting the viewing angle of the flexible lens 100, and the third peripheral surface is arranged between the first surface and the second surface, It is used to be in contact with the wrinkle ring 200 to withstand the pressing force exerted by the wrinkle ring 200 on the flexible lens 100 .

In this way, when the flexible lens 100 is squeezed by the wrinkle ring 200, the curvature radii of the first surface and the second surface decrease; As the radius of curvature of the surface decreases, the radius of curvature of the third peripheral surface will be adaptively changed.

Similarly, when the extrusion of the flexible lens 100 is released, the radius of curvature of the first surface and the second surface will increase, and with the increase of the radius of curvature of the first surface and the second surface, the third peripheral surface The radius of curvature will be changed adaptively, which will not be described in detail here.

Further, one or more flexible lenses 100 can be provided as required, and multiple flexible lenses 100 can be arranged in sequence along the optical axis, and all of them are arranged in the same wrinkle ring 200, or the wrinkle rings 200 correspond to the flexible lenses 100 one-to-one. The settings are not described in detail here.

Further, regarding the specific structure of the extrusion driving mechanism 300 , the extrusion driving mechanism 300 may be configured as a device such as a movable splint, so as to realize the extrusion of the pleat ring 200 by clamping the pleat ring 200 . The movable splint can adopt piezoelectric drive, electric drive and magnetic drive, etc., which will not be described in detail here.

In an embodiment of the present application, as shown in FIGS. 1 to 3 , an extrusion driving mechanism 300 may be provided to include a traction ring 310 and a driving device 320 . The traction ring 310 is sleeved on the pleat ring 200 and surrounds the optical axis. The traction ring 310 is driven and connected to the driving device 320 . The driving device 320 can drive the traction ring 310 to move in a first direction to squeeze the pleat ring 200 . Wherein the first direction intersects with the optical axis direction, for example, is perpendicular to each other.

In this design, the driving device 320 pulls the traction ring 310 to move to one side, thereby generating a unilateral pressing force on the wrinkle ring 200, and then deforming the wrinkle ring 200 to form a squeeze on the flexible lens 100, thereby changing The radius of curvature of the flexible lens 100 and the angle of view of the lens module 900 can be adjusted. Here the traction ring 310 can be made of metal material to ensure better transmission of traction force.

In another embodiment of the present application, as shown in FIG. 1 , FIG. 2 , FIG. 4 and FIG. 5 , the extrusion driving mechanism 300 may still include a traction ring 310 and a driving device 320 . Wherein the traction ring 310 includes a rope body 311 and a ring body 312; the ring body 312 is sleeved on the fold ring 200 and surrounds the optical axis; the first end of the ring body 312 is provided with an annular joint 313, and the second end of the ring body 312 can be It moves through the ring joint 313 and is connected to the driving device 320 through the rope body 311 .

When the driving device 320 is activated, the second end of the ring body 312 can move toward the driving device 320 along with the rope body 311 , so that the ring body 312 can deform and squeeze the folded ring 200 .

In this design, when the driving device 320 pulls the rope body 311, the area surrounded by the ring body 312 gradually decreases as the pulling progresses, and finally the ring body 312 will cling to the outer peripheral wall of the fold ring 200, and The outer peripheral wall of the pleat ring 200 forms a binding effect to form a squeeze on the pleat ring 200 . It can be seen that this extrusion method can make the extrusion force evenly act on the entire circumference of the wrinkle ring 200, thereby making the extrusion force on the wrinkle ring 200 more uniform, making it easier to adjust the radius of curvature of the flexible lens 100, and to Adjustment of the field of view, shooting distance or measurement distance of the lens module 900.

It should be noted here that, in order to cooperate with the traction ring 310 to form a squeeze on the wrinkle ring 200, a stopper, a slot, etc., can be provided at corresponding positions on the lens module 900, so as to limitly cooperate with the wrinkle ring 200, In order to prevent the wrinkle ring 200 from being separated from the lens module 900 when being squeezed by the traction ring 310 , for example, one end of the wrinkle ring 200 is arranged inside the card slot to form a limited fit with the card slot, so as to better receive the force given by the traction ring 310 . Extrusion force, and then to achieve deformation, those skilled in the art can select such a limiting device according to the specific structure of the lens module 900, which will not be described in detail here.

Further, for the specific setting of the driving device 320 , a linear translation mechanism such as a piston mechanism and an electric push rod assembly can be selected to connect the rope body 311 to pull the rope body 311 and squeeze the folded ring 200 . In the present application, the driving device 320 may be set as a rotary motor, and the rotary motor has a motor shaft.

When the driving device 320 drives the motor shaft to rotate in the first circumferential direction, the rope body 311 can be wound around the motor shaft, and the ring body 312 can deform with the movement of the rope body 311 and squeeze the folded ring 200 .

When the driving device 320 drives the motor shaft to rotate in the second circumferential direction, the rope body 311 can release the winding of the motor shaft, and the ring body 312 can move with the rope body 311 and release the squeeze on the folded ring 200 . The second circumferential direction is opposite to the first circumferential direction, for example, one is clockwise and the other is counterclockwise.

Compared with translational driving mechanisms such as electric push rods and piston mechanisms, the driving device 320 is configured as a rotating mechanism without reserving space for a linear stroke, and the lens module 900 can be designed more compactly.

Further, regarding the material selection of the traction ring 310, the traction ring 310 should have certain Elasticity, the elasticity here means that the traction ring 310 can better produce elastic bending deformation, so that after stopping the driving device 320 and then stopping the pulling of the traction ring 310, the traction ring 310 can return to the original state, that is, the traction ring 310 recovers The shape and size when not subjected to external force, for example, the traction ring 310 is made of elastic materials such as spring steel.

In this way, when the driving device 320 drives the motor shaft to rotate in the first circumferential direction, the ring body 312 retracts as a whole and undergoes elastic bending deformation to squeeze the folded ring 200, and the part of the rope body 311 wound around the motor shaft forms a torsion spring part 314, and perform elastic torsional deformation.

When the driving device 320 drives the motor shaft to rotate in the second circumferential direction, the ring body 312 restores elastic bending deformation to release the squeeze on the wrinkled ring 200; the torsion spring part 314 restores elastic torsional deformation to release the rope body 311 on the motor shaft. of winding.

In this way, the driving device 320 can achieve a better squeezing effect on the wrinkle ring 200 and adjust the radius of curvature of the flexible lens 100 by pulling the traction ring 310 . When resetting is required, through the reversal of the driving device 320 and the gradual release of the elastic potential energy by the ring body 312 and the torsion spring portion 314, the traction ring 310 can be easily returned to the initial state, so as to squeeze the wrinkle ring 200 for the next time. get ready.

Similarly, the wrinkle ring 200 can also be elastic, such as made of elastic material, so that when the traction ring 310 squeezes the wrinkle ring 200, the wrinkle ring 200 is in an elastic bending deformation state, and the wrinkle structure 210 is in a wrinkled state. When the traction ring 310 releases the squeeze on the wrinkle ring 200 , the wrinkle structure 210 can restore the wrinkle deformation to be in an extended state, and release the squeeze on the flexible lens 100 so that the flexible lens 100 can recover the deformation. This design of the wrinkle ring 200 can better realize the reset, so as to be ready for the next extrusion of the flexible lens 100 .

It should be noted here that the wrinkle ring 200 can be made of elastic material as a whole, or only the wrinkle structure 210 can be made of elastic material, so that the reset effect of the wrinkle ring 200 can be achieved. No more details here.

In other optional embodiments, as shown in FIGS. 6 and 7 , the wrinkle ring 200 may include a base ring portion 220 and a wrinkle structure 210 , and the base ring portion 220 and the wrinkle structure 210 are connected end to end to form the wrinkle ring 200 . The base ring part 220 can be made of electrostrictive material, such as lead zirconate titanate piezoelectric material.

The extrusion driving mechanism 300 includes a first driving power source 331 , and the first driving power source 331 is electrically connected to the base ring part 220 . When the first driving power supply 331 supplies power, the base ring part 220 undergoes electrostrictive deformation. At this time, the base ring part 220 retracts, and the area enclosed by the wrinkled ring 200 is reduced, and the base ring part 220 drives the wrinkled structure 210. Wrinkled deforming to be in a wrinkled state, the wrinkled ring 200 can be deformed to compress the flexible lens 100 .

When the first driving power supply 331 cuts off the power supply, the base ring part 220 resumes the electrostrictive deformation, at this time the base ring part 220 is extended, and the area surrounded by the wrinkled ring 200 returns to its original size, and the base ring part 220 drives the wrinkled structure 210 The wrinkle ring 200 can relieve the compression of the flexible lens 100 by recovering the wrinkle deformation and being in a stretched state.

Compared with the mechanically driven method, the deformation of the folded ring 200 by electric driving requires less material, and the assembly is simpler, which makes the device of the present application more compact. It should be noted here that a switch can be set in the extrusion driving mechanism 300 to control the on-off between the first driving power source 331 and the base ring part 220 to enhance the control performance of the device of the present application, which will not be described in detail here.

Further, the lens module 900 may further include a base 500 , a second protective lens 600 and a first protective lens 700 . Wherein the base 500, the second protective lens 600, the wrinkle ring 200 and the first protective lens 700 are sequentially arranged along the optical axis direction.

The base 500 and the second protective lens 600 form a second accommodation cavity; the wrinkle ring 200, the second protective lens 600 and the first protective lens 700 form a first accommodation cavity; the flexible lens 100 is arranged in the first accommodation cavity, and the photosensitive device 400 is located in the second accommodation cavity. This kind of setting can realize to fold ring 200, photosensitivity The cover of the device 400 is protected, and can be dustproof and waterproof, so as to realize sealing.

Further, the bottom of the base 500 can be set as a circuit board, and the photosensitive device 400 can be electrically connected to the circuit board, so that the base 500 can not only serve as the installation base of the photosensitive device 400, but also serve as a power supply medium for the photosensitive device 400, killing two birds with one stone.

Please refer to FIG. 8 to FIG. 12 , the present application also discloses an electronic device, which may include the aforementioned lens module 900 . The electronic device may be a mobile phone, a tablet computer, an e-book reader, a wearable device (such as a smart watch, smart glasses), etc. The embodiment of the present application does not limit the specific type of the electronic device.

Further, the lens module 900 may be an ordinary optical lens for imaging as described above, and in this case the photosensitive device 400 is a photosensitive chip. In the present application, the lens module 900 may also be set as a laser ranging lens, and in this case, the photosensitive device 400 is a laser sensor.

In the case that the lens module 900 is configured as a laser ranging lens, the laser sensor may include a laser emitter 410 and a laser receiver 420 . Wherein, the laser emitter 410 and the flexible lens 100 are arranged in sequence along the optical axis, and the laser receiver 420 is arranged on one side of the laser emitter 410 and avoids the optical axis. The laser signal emitted by the laser transmitter 410 is processed by the flexible lens 100 and then shoots into the measured object, and then generates a reflected signal, which is finally fed back to the laser receiver 420 to be received by the laser receiver 420, thereby measuring The distance between the measured object and the lens module 900 .

According to the distance of the object to be measured, the squeeze degree of the wrinkle ring 200 can be adjusted, and then the radius of curvature of the flexible lens 100 can be adjusted, thereby adjusting the field of view angle of the laser signal emitted by the laser emitter 410 . When the distance of the object to be measured is relatively far, increase the extrusion degree of the flexible lens 100 to reduce the field of view, so that the laser signals emitted by the laser transmitter 410 are more concentrated, so that the emitted energy is more concentrated and the signal reception is improved. The signal-to-noise ratio at the end will be improved, thereby improving the measurement sensitivity. On the contrary, when the distance of the measured object is relatively short, reduce the extrusion degree of the wrinkle ring 200 to increase the field of view, so that the laser signal Ensure sufficient exposure to the measured object.

Further, the electronic device 1000 may also include a camera module 800, a control module and a receiving module.

The control module is electrically connected to the camera module 800, the extrusion driving mechanism 300, the laser sensor and the receiving module respectively. Wherein the control module may be a single-chip microcomputer and other devices for realizing control.

The receiving module is used for receiving user input.

In the case that the user input is an image scaling input, the control module adjusts the field of view and focal length of the camera module 800 , the output power of the extrusion driving mechanism 300 and the output power of the laser sensor in response to the image scaling input.

When the output power of the extrusion driving mechanism 300 is adjusted, the extrusion driving mechanism 300 adjusts the deformation of the wrinkle ring 200, the degree of extrusion of the flexible lens 100 changes with the deformation of the wrinkle ring 200, and the lens module 900 The field of view is adjusted. When the output power of the laser sensor is adjusted, the intensity of the laser signal emitted by the lens module 900 is adjusted.

Taking the electronic device 1000 as a smart phone as an example, the camera module 800 can be understood as a lens installed on the electronic device 1000 for imaging, such as a wide-angle lens, a macro lens, and the like. The receiving module can be understood as a touch panel, buttons, etc. provided on the electronic device 1000, so that the user can perform related operations and input related instructions, that is, perform user input.

When the user needs to take pictures, the camera module 800 is activated, and the touch panel also serves as an imaging interface to display the objects captured by the camera module 800, and then the user clicks on the touch panel or presses a corresponding button to realize shooting.

The above image zooming input can be understood as zooming in or zooming out when shooting objects at different distances, which can be performed by triggering buttons, sliding the touch panel, etc., so that the receiving module receives user input, and the receiving module receives the image zooming input. further passed to the control module, which then controls the The control module controls the camera module 800 and the lens module 900 to make corresponding adjustments.

Specifically, an image scaling input is used to capture objects at different distances. When the object is far away, the image zooming input performed is a zoom-in operation, which can be realized by the user sliding on the touch panel. Following the zoom-in operation, the control unit controls the camera module 800 to reduce the field of view angle, thereby Adjust the best imaging interface to display on the touch panel. The higher the magnification when shooting, the smaller the optimal imaging plane, which may result in the inability to detect the reflected signal of the object, and thus the inability to accurately measure the distance of the object. Therefore, the adjustment method of the lens module 900 is as follows:

As shown in Figures 8 and 9, the more magnifications are required for shooting, the control unit will increase the output power of the extrusion drive mechanism 300, thereby increasing the degree of extrusion on the wrinkle ring 200, thereby reducing the flexible lens With a radius of curvature of 100 and a reduced field of view of the lens module 900, the laser signal emitted by the laser transmitter 410 can be directed to the object to be photographed in a more concentrated manner, so that the emitted energy is more concentrated and the signal noise at the signal receiving end is reduced. Ratio will increase, thereby improving measurement sensitivity.

At the same time, the control unit increases the output power of the laser sensor, thereby increasing the intensity of the laser signal emitted by the laser emitter 410, so as to ensure that the emitted laser signal can have a longer emission distance. In this way, by reducing the field of view angle of the laser ranging lens to increase the measurement sensitivity and enhancing the intensity of the laser signal, it is possible to measure the distance of a distant object.

Conversely, when the object distance is closer, the magnification factor is smaller, the field of view angle of the camera module 800 is increased, and the optimum imaging plane is larger, and the control unit will reduce the output power of the extrusion drive mechanism 300 to increase The field of view of the large lens module 900 and the output power of the laser sensor are reduced to reduce the intensity of the laser signal. In this way, it is possible to measure the distance of an object at a short distance, and at the same time, the field of view of the lens module 900 and the field of view of the camera module 800 are always adapted to avoid the situation that the blind area of the field of view cannot accurately measure the distance.

To sum up, with the specific operation of image zoom input in the shooting process, the specific magnification The field of view of the lens module 900 will be adaptively changed with the field of view of the camera module 800 to avoid blind spots in the field of view of the two, while ensuring measurement sensitivity and accurate measurement of the current distance of the object.

Further, referring to FIGS. 10 to 12 , the electronic device 1000 may include multiple camera modules 800 . Wherein, at least two camera modules 800 have different field of view angles.

When the user input is a camera switching input, the control module turns on the corresponding camera module 800 in response to the camera switching input, and adjusts the output power of the extrusion driving mechanism 300 and the output power of the laser sensor.

When the output power of the extrusion driving mechanism 300 is adjusted, the field of view of the lens module 900 is adjusted.

When the output power of the laser sensor is adjusted, the intensity of the laser signal emitted by the lens module 900 is adjusted.

Still taking the electronic device 1000 as an example of a smart phone, the smart phone usually has relatively rich camera functions, so the configured camera modules 800 should have multiple and different types, for example, the multiple camera modules 800 include ordinary optical cameras, wide-angle Camera, periscope camera, etc. Different camera modules 800 have different field of view. For example, the field of view of an ordinary optical camera as the main camera is about 78°, the field of view of a periscope/telephoto camera is about 20°, and the field of view of a wide-angle / The field of view of the macro camera is about 120°.

The above-mentioned camera switching input specifically includes: selecting the corresponding camera module 800 to start, and then switching the electronic device 1000 to a different shooting mode. The user can realize by pressing the corresponding switch, or performing the corresponding operation on the touch panel.

For example, when switching to an ordinary optical camera for shooting, the field of view of the lens module 900 is adjusted synchronously to ensure that it is compatible with the field of view of the ordinary optical camera. There is an effective overlapping area between the field of view angles of ordinary optical cameras to avoid The blind area of the field of view is displayed, and the output power of the laser sensor is adaptively adjusted at the same time, so as to ensure effective distance measurement while shooting, as shown in Figure 10.

For another example, when switching to a periscope/telefocus camera for shooting, the periscope/telefocus camera is usually used to shoot distant objects, so the periscope/telefocus camera has the characteristics of a long focal length and a small field of view. At this time, the power of the extrusion drive mechanism 300 should be increased, thereby increasing the degree of extrusion to the flexible lens 100 to reduce its radius of curvature, thereby reducing the field of view angle of the lens module 900 to that of the periscope/telefocus The field of view of the camera is adapted to ensure the effective overlapping area between the two. At the same time, the output power of the laser sensor should be increased to enhance the intensity of the laser emission signal and ensure the effective measurement distance, as shown in Figure 11.

For another example, when switching to a wide-angle/macro camera for shooting, the wide-angle/macro camera is usually used to shoot close objects, so the wide-angle/macro camera has the characteristics of a short focal length and a large field of view. At this time, the power of the extrusion drive mechanism 300 should be reduced, thereby reducing the degree of extrusion to the flexible lens 100 to increase its radius of curvature, thereby increasing the field of view angle of the lens module 900 to that of the wide-angle/macro camera. The field of view is adapted to ensure the effective overlapping area between the two, and avoid the situation that the blind area of the field of view cannot accurately measure the distance. At the same time, the output power of the laser sensor should be reduced to reduce the intensity of the emitted laser signal, thereby reducing the measurement distance and avoiding energy waste, as shown in FIG. 12 .

To sum up, when the lens module 900 is set as a laser ranging lens, it can have good adaptability and compatibility with different camera modules 800, thereby improving the overall imaging effect.

The above descriptions are only examples of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

A lens module (900), comprising a flexible lens (100), a wrinkle ring (200), an extrusion driving mechanism (300) and a photosensitive device (400);

The flexible lens (100) and the photosensitive device (400) are sequentially arranged along the optical axis direction of the lens module (900);

The wrinkle ring (200) is sleeved on the flexible lens (100) and surrounds the optical axis; the wrinkle ring (200) is provided with a wrinkle structure (210);

The wrinkle ring (200) is drivingly matched with the extrusion driving mechanism (300);

When the extrusion driving mechanism (300) is activated, the extrusion driving mechanism (300) drives the wrinkle ring (200) to deform to squeeze the flexible lens (100); the wrinkle structure ( 210) performing wrinkle deformation along with the wrinkle ring (200) to be in a wrinkled state; the wrinkle deformation is along the circumferential direction of the wrinkle ring (200);

In the case where the flexible lens (100) is squeezed by the wrinkle ring (200), the radius of curvature of the flexible lens (100) decreases.
The lens module (900) according to claim 1, wherein: the extrusion driving mechanism (300) comprises a traction ring (310) and a driving device (320),

The traction ring (310) sleeves the folded ring (200) and surrounds the optical axis, the traction ring (310) is drivingly connected to the driving device (320),

The driving device (320) can drive the traction ring (310) to move in a first direction to squeeze the wrinkle ring (200), and the first direction intersects with the optical axis direction.
The lens module (900) according to claim 1, wherein: the extrusion driving mechanism (300) comprises a traction ring (310) and a driving device (320),

The traction ring (310) includes a rope body (311) and a ring body (312); the ring body (312) is sleeved on the fold ring (200) and surrounds the optical axis; the ring body ( 312) is provided with a ring joint (313) at the first end, and the second end of the ring body (312) is movably passed through the ring joint (313) and connected by the rope body (311) said drive means (320);

When the driving device (320) is activated, the second end of the ring body (312) can move toward the driving device (320) along with the rope body (311), so that the ring body ( 312) capable of deforming and compressing the crimped ring (200).
The lens module (900) according to claim 3, wherein: the driving device (320) is a rotating motor, and the rotating motor has a motor shaft,

When the driving device (320) drives the motor shaft to rotate in the first circumferential direction, the rope body (311) can be wound around the motor shaft, and the ring body (312) can follow the The movement of the rope body (311) deforms and squeezes the wrinkled ring (200);

When the driving device (320) drives the motor shaft to rotate in the second circumferential direction, the rope body (311) can release the winding of the motor shaft, and the ring body (312) can follow the The movement of the rope body (311) and releasing the extrusion of the folded ring (200);

The second circumferential direction is opposite to the first circumferential direction.
The lens module (900) according to claim 4, wherein: the traction ring (310) has elasticity,

When the driving device (320) drives the motor shaft to rotate in the first circumferential direction, the ring body (312) undergoes elastic bending deformation to squeeze the wrinkled ring (200), and the rope body ( 311) forming a torsion spring part (314) on the part wound around the motor shaft, and performing elastic torsional deformation,

When the driving device (320) drives the motor shaft to rotate in the second circumferential direction, the ring body (312) resumes elastic bending deformation to release the squeeze on the folded ring (200); the The torsion spring part (314) restores elastic torsion deformation to release the winding of the rope body (311) on the motor shaft.
The lens module (900) according to any one of claims 2-5, wherein: the wrinkle ring (200) is elastic,

When the traction ring (310) releases the compression of the wrinkle ring (200), the wrinkle structure (210) can restore the wrinkle deformation to be in a stretched state, and release the pressure on the flexible lens (100) Squeezing to enable the flexible lens (100) to recover from deformation.
The lens module (900) according to claim 1, wherein: the wrinkled ring (200) comprises a base ring part (220) and the wrinkled structure (210), the base ring part (220) and the The folded structures (210) are connected end to end to form the folded ring (200); the base ring part (220) is made of electrostrictive material;

The extrusion driving mechanism (300) includes a first driving power supply (331), and the first driving power supply (331) is electrically connected to the base ring part (220);

When the first driving power supply (331) supplies power, the base ring part (220) undergoes electrostrictive deformation, and the base ring part (220) drives the wrinkle structure (210) to perform wrinkle deformation to In a crumpled state, the crimp ring (200) is capable of deforming to compress the flexible lens (100);

When the first driving power source (331) cuts off the power supply, the base ring part (220) recovers the electrostrictive deformation, and the base ring part (220) drives the wrinkle structure (210) to recover the wrinkle deformation and In the stretched state, the wrinkle ring (200) can relieve the compression of the flexible lens (100).
The lens module (900) according to claim 1, wherein: the lens module (900) further comprises a base (500), a second protective lens (600) and a first protective lens (700), the base (500), the second protective lens (600), the wrinkle ring (200) and the first protective lens (700) are sequentially arranged along the optical axis direction;

The base (500) and the second protective lens (600) enclose a second accommodation cavity; the wrinkle ring (200), the second protective lens (600) and the first protective lens (700) ) encloses the first receiving chamber;

The flexible lens (100) is arranged in the first accommodating chamber, and the photosensitive device (400) is arranged in the second accommodating chamber.
An electronic device (1000), comprising the lens module (900) according to any one of claims 1-8.
The electronic device (1000) according to claim 9, wherein: the photosensitive device (400) is a laser sensor, and the laser sensor includes a laser transmitter (410) and a laser receiver (420),

The laser emitter (410) and the flexible lens (100) are sequentially arranged along the optical axis direction, and the laser receiver (420) is arranged on one side of the laser emitter (410) and avoided the optical axis.
The electronic device (1000) according to claim 10, wherein: the electronic device (1000) further comprises a camera module (800), a control module and a receiving module,

The control module is respectively electrically connected to the camera module (800), the extrusion driving mechanism (300), the laser sensor and the receiving module,

The receiving module is used to receive user input,

In the case that the user input is an image scaling input, the control module adjusts the field of view angle of the camera module (800) and the output of the extrusion driving mechanism (300) in response to the image scaling input power and the output power of the laser sensor;

When the output power of the extrusion drive mechanism (300) is adjusted, the lens module (900) field of view has been adjusted;

When the output power of the laser sensor is adjusted, the intensity of the laser signal emitted by the lens module (900) is adjusted.
The electronic device (1000) according to claim 11, wherein: said electronic device (1000) comprises a plurality of said camera modules (800), at least two of said camera modules (800) have different viewing angles ;

In the case that the user input is a camera switch input, the control module turns on the corresponding camera module (800) in response to the camera switch input, and adjusts the output of the extrusion drive mechanism (300) power and the output power of the laser sensor.