CN113867073A

CN113867073A - Iris diaphragm module, periscopic camera and electronic equipment

Info

Publication number: CN113867073A
Application number: CN202010530607.6A
Authority: CN
Inventors: 周凯
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-12-31
Anticipated expiration: 2040-06-11
Also published as: CN113867073B

Abstract

The application discloses but iris diaphragm module, periscopic camera and electronic equipment, but iris diaphragm module includes shading blade, slider mechanism, reset spring and cam mechanism, shading blade assembly in on the slider mechanism, reset spring with cam mechanism mutually cooperates and is used for the drive slider mechanism is reciprocating motion. When the aperture size needs to be adjusted, the sliding block mechanism is driven by the cam mechanism to move in a lifting mode, return stroke movement is carried out under the action of the reset spring, the shading blades are driven to shade the periscopic camera, the incident illumination intensity and the depth of field of the periscopic camera are changed, the shooting effect is enhanced, and meanwhile the use scene is enriched.

Description

Iris diaphragm module, periscopic camera and electronic equipment

Technical Field

The invention relates to the technical field of electronics, in particular to an iris diaphragm module, a periscopic camera and electronic equipment.

Background

In modern society, mobile phones have been popularized to thousands of households, and more people have their own mobile phones. Because the camera is arranged on the mobile phone, people can conveniently and quickly use the camera to take pictures, wherein the aperture size of the mobile phone camera is an important factor influencing the picture taking effect. Specifically, the large-aperture camera has a large aperture size, so that more light rays can enter the camera module, the shutter time is shortened, the camera is suitable for shooting moving objects, the depth of field is shallow, and the camera can be used in scenes such as a virtual background and a salient main body; the small-aperture camera has long shutter time, is suitable for shooting a vehicle rail, a star rail and the like, has deep field depth, and ensures the definition of objects in a multi-field depth range.

Compared with the zoom capability of the traditional camera, the periscopic camera can realize the maximum 10 times of optical zoom because of strong optical zoom capability, so that the periscopic camera is gradually applied to the mobile phone industry. However, in the process of implementing the present invention, the inventor finds that the aperture size of the periscopic camera in the related art is fixed, which means that the periscopic camera cannot adjust the aperture size to change the incident illumination intensity and the depth of field, thereby affecting the shooting effect and limiting the use scene.

Disclosure of Invention

In view of the above-mentioned defects or deficiencies in the related art, it is desirable to provide an iris diaphragm module, a periscopic camera and an electronic device, in which the size of the iris diaphragm can be adjusted, so that the incident illumination intensity and the depth of field can be changed, the shooting effect can be enhanced, and the use scene can be enriched.

In a first aspect, the present application provides an iris diaphragm module, which includes a light-shielding blade, a slider mechanism, a return spring, and a cam mechanism, wherein the light-shielding blade is assembled on the slider mechanism, and the return spring and the cam mechanism are mutually matched to drive the slider mechanism to reciprocate.

Optionally, one end of the slider mechanism abuts against an edge of the cam mechanism, so that the cam mechanism drives the slider mechanism to make a lifting motion;

the other end of the sliding block mechanism is connected with the return spring, so that the return spring controls the sliding block mechanism to do return motion until the cam mechanism is reset.

Optionally, the slider mechanism comprises at least one slider;

correspondingly, the cam mechanism comprises a motor and at least one cam, the motor is used for driving the at least one cam to rotate, and the cams are in one-to-one correspondence with the sliding blocks.

Optionally, when the cam mechanism includes a first cam and a second cam, the first cam and the second cam are connected to each other through a connecting shaft, and are centrosymmetric with respect to the connecting shaft.

Optionally, when the slider mechanism includes a first slider and a second slider, and the return spring includes a first return spring and a second return spring, one end of the first slider abuts against the wheel projecting edge of the first cam, and the other end of the first slider is connected to the first return spring, and one end of the second slider abuts against the wheel edge of the second cam, and the other end of the second slider is connected to the second return spring;

the first sliding block and the second sliding block are arranged on the same side of the cam mechanism, so that the first sliding block and the second sliding block move in opposite directions under the driving of the cam mechanism.

Optionally, the slider comprises a first member, a second member and a slider guide for controlling the direction of movement of the second member, the second member being connected to the return spring.

Optionally, the combination of the second member and the slider guide rail includes either penetration or engagement.

Optionally, a blade guide rail and an electromagnet are further arranged on the sliding block, and the electromagnet is used for controlling the movement direction of the shading blade on the blade guide rail.

Optionally, the combination of the shading vane and the vane guide rail includes any one of penetration and buckling.

Optionally, the material of the shading vane comprises any one or more of iron, cobalt or nickel.

In a second aspect, the present application provides a periscopic camera comprising any one of the iris diaphragm modules as described in the first aspect.

In a third aspect, the present application provides an electronic device comprising a periscopic camera as described in the second aspect.

According to the technical scheme, the embodiment of the application has the following advantages:

the utility model provides an iris diaphragm module, periscopic camera and electronic equipment, this iris diaphragm module include shading blade, slider mechanism, reset spring and cam mechanism, and wherein shading blade assembles on slider mechanism. When the aperture size needs to be adjusted, the sliding block mechanism is driven by the cam mechanism to move in a lifting mode, return stroke movement is carried out under the action of the reset spring, the shading blades are driven to shade the periscopic camera, the incident illumination intensity and the depth of field of the periscopic camera are changed, the shooting effect is enhanced, and meanwhile the use scene is enriched.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of an iris diaphragm module according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of another iris diaphragm module according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a cam mechanism in an iris diaphragm module according to an embodiment of the present disclosure;

fig. 4 is a schematic view illustrating an operating state of a light blocking blade in an iris diaphragm module according to an embodiment of the present disclosure;

FIG. 5 is a schematic view illustrating an operation state of a light-blocking blade in another iris diaphragm module according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram illustrating an operating state of a light-blocking blade of another iris diaphragm module according to an embodiment of the present disclosure;

FIG. 7 is a schematic view illustrating an operating state of a light-shielding blade in a variable aperture module according to an embodiment of the present disclosure;

fig. 8 is a schematic view of a periscopic camera according to an embodiment of the present disclosure;

fig. 9 is a block diagram of an electronic device according to an embodiment of the present application.

Reference numerals:

100-iris diaphragm module, 101-shading blade, 102-slider mechanism, 1021-slider, 1022-first member, 1023-second member, 1024-slider rail, 1025-blade rail, 1026-electromagnet, 1027-first slider, 1028-second slider, 1029-first electromagnet, 1030-second electromagnet, 103-return spring, 1031-first return spring, 1032-second return spring, 104-cam mechanism, 1041-motor, 1042-cam, 1043-first cam, 1044-second cam, 1045-connecting shaft, 105-periscopic camera, 1051-camera support;

201-electronics, 2011-microprocessor, 2012-memory, 2013-peripherals interface, 2014-radio frequency circuit, 2015-display, 2016-sensor, 2017-power supply.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described are capable of operation in sequences other than those illustrated or otherwise described herein.

Moreover, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or modules is not necessarily limited to those steps or modules explicitly listed, but may include other steps or modules not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

For convenience of understanding and explanation, the variable aperture module, the periscopic camera and the electronic device provided in the embodiments of the present application are described in detail below with reference to fig. 1 to 9.

Please refer to fig. 1, which is a schematic structural diagram of an iris diaphragm module according to an embodiment of the present disclosure. The iris diaphragm module 100 includes a light-shielding blade 101, a slider mechanism 102, a return spring 103, and a cam mechanism 104. The shading vane 101 is assembled on the slider mechanism 102, and the return spring 103 and the cam mechanism 104 are matched with each other to drive the slider mechanism 102 to reciprocate.

A specific process of engaging the return spring 103 and the cam mechanism 104 will be described by taking fig. 1 as an example. One end of the slider mechanism 102 abuts against the edge of the cam mechanism 104 so that the cam mechanism 104 drives the slider mechanism 102 to make a lifting motion, and the other end of the slider mechanism 102 is connected with the return spring 103 so that the return spring 103 controls the slider mechanism 102 to make a returning motion until the cam mechanism 104 is reset. Because the shape of the cam in the cam mechanism 104 is irregular, the slider mechanism 102 can make a lift movement under the driving of the cam mechanism 104, and make a return movement under the action of the return spring 103, so as to drive the light-shielding blade 101 to shield the periscopic camera.

Optionally, the slider mechanism 102 in the present embodiment includes at least one slider 1021. Accordingly, the cam mechanism 104 includes a motor 1041 and at least one cam 1042, wherein the motor 1041 is used for driving the at least one cam 1042 to rotate, and the cams 1042 are in one-to-one correspondence with the sliders 1021. This arrangement has an advantage that the cam 1042 can convert its own rotation motion into a linear motion of the slider 1021, thereby realizing the control of the shutter blade 101, and has advantages of simple structure and low manufacturing cost.

It should be noted that the return spring 103 may be connected to a side surface of each slider 1021, such as shown in fig. 1, which is advantageous in that the slider 1021 has a large movable range and is more accurately controlled. Of course, the return spring 103 may be connected to an end surface of each slider 1021, such as shown in fig. 2, which is advantageous in that the iris diaphragm module 100 is more compact, and space and manufacturing costs are saved.

Optionally, when the return spring 103 is connected to the side surface of each slider 1021, the slider 1021 in the embodiment of the present application further comprises a first member 1022, a second member 1023 and a slider guide 1024, wherein the slider guide 1024 is used for controlling the moving direction of the second member 1023, and the second member 1023 is connected with the return spring 103.

It should be noted that the combination of the second member 1023 and the slide rail 1024 may include, but is not limited to, any one of penetration and engagement. Specifically, throughout means that the slider guide rail 1024 passes through the center of the second member 1023, such as shown in fig. 1; snap-fit means a way that the portion of the bottom of the second member 1023 that contacts the slider guide rail 1024 is a mating mechanical structure, such as a train wheel and a steel rail.

Optionally, the slider 1021 is further provided with a blade guide 1025 and an electromagnet 1026, and the electromagnet 1026 is used for controlling the moving direction of the shade blade 101 on the blade guide 1025. This arrangement is advantageous in that the slider 1021 can alternately drive the shutter blade 101, and the movable range of the shutter blade 101 is expanded, so that the control manner is more flexible and various, and at the same time, the size of the cam mechanism 104 is further reduced, so that the electronic apparatus is more miniaturized.

It should be noted that the combination of the shading blades 101 and the blade guide 1025 can include, but is not limited to, any one of through-hole or snap-fit. Specifically, through refers to the blade guide 1025 passing through the end of the shading blade 101, such as shown in FIG. 1; the snap is that the shading blade 101 is buckled on the blade guide 1025, for example, a ring formed by bending the end of the shading blade 101 is sleeved on the surface of the blade guide 1025.

Alternatively, as shown in fig. 3, when the cam mechanism 104 includes two cams 1042, i.e., a first cam 1043 and a second cam 1044, the two cams 1042 are connected to each other by a connecting shaft 1045, and are centrosymmetrically about the connecting shaft 1045 in the embodiment of the present application. Specifically, the composite cam mechanism 104 composed of the two cams 1042 is a part assembled by rotating a pair of cams 1042 with the same shape by 180 °. A single cam 1042 is shown in phantom in fig. 3, and can be seen to be irregularly shaped, with the left side corresponding to the wheel rim and the right side corresponding to the wheel ledge. It will be appreciated that each cam 1042 corresponds to a slider 1021.

Illustratively, taking fig. 1 as an example, when the slider mechanism 102 includes a first slider 1027 and a second slider 1028, and the return spring 103 includes a first return spring 1031 and a second return spring 1032, one end of the first slider 1027 abuts against the wheel projecting edge of the first cam 1043, the other end of the first slider 1027 is connected to the first return spring 1031, and one end of the second slider 1028 abuts against the wheel edge of the second cam 1044, and the other end of the second slider 1028 is connected to the second return spring 1032. The first slider 1027 and the second slider 1028 are disposed on the same side of the cam mechanism 104, so that the first slider 1027 and the second slider 1028 are driven by the cam mechanism 104 to move in opposite directions. The arrangement has the advantages that the size of a single cam can be reduced, excessive space resources are avoided being occupied, and the electronic equipment is more miniaturized; moreover, the two cams 1042 have symmetrical structure and have a lift and a return stroke, so that the two sliders 1021 can move in opposite directions.

Optionally, the material of the light-shielding blade 101 in the embodiment of the present application has magnetism, and includes any one or more of iron, cobalt, or nickel, so as to cooperate with the control of the electromagnet 1026. Note that, when the material of the light shielding blade 101 is any of a plurality of iron, cobalt, and nickel, it is expressed in the form of an alloy, such as an iron-nickel alloy, an iron-cobalt-nickel alloy, and the like.

The operation principle of the iris diaphragm module 100 in the embodiment of the present invention will be described below, and by taking fig. 4 as an example, assuming that the initial state of the periscopic camera 105 is a large diaphragm, at this time, the light-shielding blade 101 does not need to shield the periscopic camera 105, the first electromagnet 1029 starts to be energized, and the second electromagnet 1030 is de-energized, where the dotted line represents the visual field range of the periscopic camera 105.

When the aperture size needs to be adjusted, the two cams 1042 rotate 180 ° and the first slider 1027 and the second slider 1028 move to the positions shown in fig. 5 under the driving of the motor 1041 and the return spring 103. At this time, the second electromagnet 1030 starts to be energized, the first electromagnet 1029 is de-energized, and the shade blade 101 continues to move in the previous direction with the second slider 1028 by the attraction force of the second electromagnet 1030. After the two cams 1042 have rotated 180 ° further, the first slider 1027 and the second slider 1028 move to the positions shown in fig. 6, at which the periscopic camera 105 is in a small aperture state under the shielding of the light-shielding blades 101, thereby achieving the switching of the aperture size.

Similarly, after the first electromagnet 1029 is kept de-energized, the second electromagnet 1030 is energized, and the two cams 1042 continue to rotate 180 °, the first slider 1027 and the second slider 1028 move to the positions shown in fig. 7. At this time, the first electromagnet 1029 starts to be energized, the second electromagnet 1030 is de-energized, and the shutter blade 101 continues to move with the first slider 1027 by the attraction force of the first electromagnet 1029 up to the position shown in fig. 4, whereby the shutter blade 101 is completely reset, and the periscopic camera 105 also realizes the switching from the small aperture state to the large aperture state.

The iris diaphragm module that this application embodiment provided, this iris diaphragm module includes shading blade, slider mechanism, reset spring and cam mechanism, and wherein shading blade assembles on slider mechanism. When the aperture size needs to be adjusted, the sliding block mechanism is driven by the cam mechanism to move in a lifting mode, return stroke movement is carried out under the action of the reset spring, the shading blades are driven to shade the periscopic camera, the incident illumination intensity and the depth of field of the periscopic camera are changed, the shooting effect is enhanced, and meanwhile the use scene is enriched.

Based on the foregoing embodiments, the present application provides a periscopic camera 105, which includes the iris diaphragm module 100 of the foregoing embodiments. In actual use, as shown in fig. 8, the variable aperture module 100 is attached to the camera mount 1051 of the periscopic camera 105. When the aperture size needs to be adjusted, the reset spring 103 and the cam mechanism 104 are matched with each other to drive the slider mechanism 102 to reciprocate, so that the shading blades 101 are driven to shade the periscopic camera 105, the incident illumination intensity and the depth of field of the periscopic camera are changed, the shooting effect is enhanced, and meanwhile, the use scene is enriched.

Based on the foregoing embodiments, the present application provides an electronic apparatus 201 including the periscopic camera 105 of the foregoing embodiments. Please refer to fig. 9, which is a block diagram of an electronic device according to an embodiment of the present disclosure. In addition, the electronic device 201 further includes a microprocessor 2011 and a memory 2012, wherein the microprocessor 2011 may include one or more processing cores, such as a 4-core microprocessor, an 8-core microprocessor, and the like. The microprocessor 2011 may be implemented in hardware using at least one of Digital Signal Processing (DSP), Field Programmable Gate Array (FPGA), and Programmable Logic Array (PLA).

The microprocessor 2011 may also include a main processor and a coprocessor, the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state.

In addition, the microprocessor 2011 may be integrated with a Graphics Processing Unit (GPU), and the GPU is used for rendering and drawing the content to be displayed on the display screen. In some embodiments, the microprocessor 2011 may further include an Artificial Intelligence (AI) processor for processing computing operations related to machine learning.

The memory 2012 may include one or more computer-readable storage media, which may be non-transitory. The memory 2012 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices.

In some embodiments, the electronic device 201 may also include a peripheral interface 2013 and at least one peripheral. Microprocessor 2011, memory 2012, and peripheral interface 2013 may be connected by a bus or signal line. Each peripheral may be connected to peripheral interface 2013 by a bus, signal line, or circuit board.

Specifically, the peripherals include, but are not limited to, radio frequency circuit 2014, display 2015, periscopic camera 104, sensor 2016, power supply 2017, and the like. Peripheral interface 2013 may be used to connect at least one Input/Output (I/O) related peripheral to microprocessor 2011 and memory 2012. In some embodiments, microprocessor 2011, memory 2012, and peripheral interface 2013 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the microprocessor 2011, the memory 2012 and the peripheral device interface 2013 may be implemented on a separate chip or circuit board, which is not limited in this application.

The Radio Frequency circuit 2014 is used to receive and transmit Radio Frequency (RF) signals, also called electromagnetic signals. The radio frequency circuit 2014 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 2014 converts the electrical signal into an electromagnetic signal for transmission, or converts the received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuitry 2014 includes an antenna system, an RF transceiver, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry 4014 can communicate with other devices via at least one wireless communication protocol. The Wireless communication protocol includes, but is not limited to, a metropolitan area network, various generations of mobile communication networks (2G, 3G, 4G, and 5G), a Wireless local area network, and/or a Wireless Fidelity (WiFi) network. In some embodiments, the radio frequency circuitry 2014 may also include Near Field Communication (NFC) related circuitry.

The display 2015 is used to display a User Interface (UI). The UI may include graphics, text, icons, video, and any combination thereof. When the display 2015 is a touch display, the display 2015 also has the capability to acquire touch signals at or above the surface of the display 2015. The touch signal may be input to the processor 2011 as a control signal for processing. At this point, the display 2015 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display 2015 can be one, disposed on a front panel of the electronic device 201; in other embodiments, the display screens 2015 may be at least two, respectively disposed on different surfaces of the electronic device 201 or in a folded design; in still other embodiments, the display 2015 can be a flexible display disposed on a curved surface or on a folded surface of the electronic device 201. Even the display 2015 may be arranged in a non-rectangular irregular figure, i.e., a shaped screen. The Display 2015 may be made of Liquid Crystal Display (LCD) or Organic Light-Emitting Diode (OLED).

Periscopic camera 105 is used to capture images or video. Optionally, periscopic camera 105 includes a front-facing camera and a rear-facing camera. Generally, the front camera is disposed on the front panel of the electronic apparatus 201, and the rear camera is disposed on the rear surface of the electronic apparatus 201. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and a Virtual Reality (VR) shooting function or other fusion shooting functions. In some embodiments, periscopic camera 105 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.

The sensors 2016 include one or more sensors to provide various aspects of status assessment for the electronic device 201. The sensor 2016 includes an acceleration sensor. For example, the sensors 2016 may detect an open/closed state of the electronic device 201, a change in the position of the electronic device 201, the presence or absence of user contact with the electronic device 201, orientation or acceleration/deceleration of the electronic device 201, and a change in the temperature of the electronic device 201. The sensors 2016 may include proximity sensors configured to detect the presence of a nearby object in the absence of any physical contact. The sensor 2016 may also include an optical sensor, such as a Complementary Metal Oxide Semiconductor (CMOS) or Charge-coupled Device (CCD) photosensitive imaging element, for use in imaging applications. In some embodiments, the sensors 2016 may also include pressure sensors, gyroscope sensors, and magnetic sensors.

The power supply 2017 is used to supply power to various components in the electronic device 201. The power source 2017 may be a disposable or rechargeable battery. When the power source 2017 includes a rechargeable battery, the rechargeable battery may support wired charging or wireless charging. The rechargeable battery may also be used to support fast charge technology.

Those skilled in the art will appreciate that the configuration shown in fig. 9 does not constitute a limitation of the electronic device 201, and may include more or fewer components than those shown, or combine certain components, or employ a different arrangement of components.

It should be noted that the electronic device 201 according to the embodiment of the present application may include, but is not limited to, a Personal Digital Assistant (PDA), a Tablet Computer (Tablet Computer), a wireless handheld device, a mobile phone, and the like.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The iris diaphragm module is characterized by comprising shading blades, a sliding block mechanism, a return spring and a cam mechanism, wherein the shading blades are assembled on the sliding block mechanism, and the return spring and the cam mechanism are matched with each other to drive the sliding block mechanism to reciprocate.

2. The iris diaphragm module as claimed in claim 1, wherein one end of the slider mechanism abuts against an edge of the cam mechanism so that the cam mechanism drives the slider mechanism to make a lifting motion;

3. The iris diaphragm module of claim 1 wherein said slide mechanism comprises at least one slide;

4. The iris diaphragm module as claimed in claim 3, wherein when the cam mechanism comprises a first cam and a second cam, the first cam and the second cam are connected to each other by a connecting shaft and are centrosymmetric about the connecting shaft.

5. The iris diaphragm module as claimed in claim 4, wherein when the slider mechanism comprises a first slider and a second slider, the return spring comprises a first return spring and a second return spring, one end of the first slider abuts against the wheel projecting edge of the first cam, and the other end of the first slider is connected to the first return spring, and one end of the second slider abuts against the wheel edge of the second cam, and the other end of the second slider is connected to the second return spring;

6. The iris diaphragm module of claim 3 wherein said slide comprises a first member, a second member and a slide guide for controlling the direction of movement of said second member, said second member being connected to said return spring.

7. The iris diaphragm module as claimed in claim 6, wherein the combination of the second member and the slider guide comprises either one of penetration and engagement.

8. The iris diaphragm module as claimed in claim 3, wherein said slider is further provided with a blade guide rail and an electromagnet, said electromagnet is used for controlling the moving direction of said light-shielding blade on said blade guide rail.

9. The iris diaphragm module as claimed in claim 8, wherein the combination of the light blocking blades and the blade guide rails comprises either through or snap-fit.

10. The variable aperture module according to any one of claims 1 to 9, wherein the material of the light blocking blade comprises any one or more of iron, cobalt or nickel.

11. A periscopic camera comprising the iris diaphragm module of any one of claims 1 to 10.

12. An electronic device characterized in that it comprises a periscopic camera according to claim 11.