Industrial camera
By setting up a TypeC interface on an industrial camera, the control of zoom, autofocus lens and LED light sources is achieved, which solves the problems of limited functional integration and IO interface in the prior art, and improves the flexibility and efficiency of the system.
Patent Information
- Application Number
- CN202421544428.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Existing industrial cameras have difficulty integrating zoom, autofocus and LED light source control functions, and limited input and output interfaces, increasing system complexity and delay.
An industrial camera is designed to provide flexible control of the lens and light source by setting a TypeC interface at one end of the camera body away from the lens mounting part, configured to support IIC or RS232 communication, LED light source control and multiple input and output, and to provide an additional IO interface.
It realizes flexible control of zoom, autofocus lens and LED light sources, reduces system complexity and delay, and provides more IO interfaces to meet the needs of different application scenarios.
Smart Images

Figure CN222763954U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic monitoring equipment, and further to an industrial camera. Background Art
[0002] With the development of social industry and the increasing dependence on industrial inspection technology, various industrial cameras are increasingly integrated into industrial inspection and production, and are used in factories, laboratories and other occasions to replace human eye inspection, replacing the visual fatigue of human eye inspection, and bringing many irreplaceable conveniences to customer control and industrial inspection.
[0003] As customers' requirements for the flexibility of industrial cameras and lenses become higher and higher, traditional fixed-focus and manual focus lenses can no longer meet the needs of certain application scenarios. Some excellent lens manufacturers have launched zoom and autofocus lenses based on stepper motors or liquid lens control, which generally support IIC or RS232 communication. However, how to control the lens is a problem. Generally, industrial cameras that only use 6-pin connectors are difficult to integrate IIC or RS232 communication because they need to provide power input, basic trigger input and flash output.
[0004] Machine vision applications usually use LED as the lighting source. The traditional method uses a separate light source controller to achieve the stroboscopic and brightness control of the LED light source. In general machine vision applications, the industrial camera receives the external trigger signal for taking pictures, then controls the exposure of the photosensitive chip, and gives a stroboscopic light signal through the 6-pin connector during the exposure of the photosensitive chip. When the external light source controller receives the signal, it completes the control of the light source. Some light source controllers can only adjust the light source through the buttons or knobs on the product, and some have network port communication, and the PC can control the light source through the network port. This traditional application requires the PC to communicate with the industrial camera through a network port, and then communicate with the light source controller through a network port, which increases the complexity of the system. In addition, because the camera outputs the stroboscopic light control signal generally through the interface of the optocoupler isolation, and the light source controller receives the stroboscopic light control signal through the interface of the optocoupler isolation, the time delay from the camera shutter opening to the LED particles lighting up will be very large. For the same reason, it is difficult for industrial cameras that generally only use 6-pin connectors to integrate the control of LED light sources.
[0005] Industrial cameras often require many input and output interfaces, but the standard 6-pin connector can only provide up to 3 input and output channels in addition to the camera power supply. If more input and output interfaces are required, a separate IO card is required.
[0006] Therefore, it is necessary to design an industrial camera to solve the above problems. Utility Model Content
[0007] In view of the above technical problems, the purpose of the utility model is to provide an industrial camera, which can be configured as an IIC or RS232 interface to communicate with external devices and supply power to external IIC or RS232 devices at the same time by setting a third interface at one end of the camera body away from the lens mounting part; configured to supply power to the LED light source and control the strobe and brightness of the LED light source; and can be configured to provide additional multi-channel input and output to meet different application scenarios.
[0008] In order to achieve the above-mentioned purpose, the utility model provides an industrial camera, including: a camera body and a lens mounting portion, a first interface, a second interface and a third interface arranged on the camera body, the lens mounting portion is arranged at one end of the camera body, and is used to install the camera lens, the first interface, the second interface and the third interface are arranged at one end of the camera body away from the lens mounting portion, the first interface is used to transmit images, the second interface is used for power supply and general input and output, and the third interface is used for input and output of expanded functions.
[0009] In some embodiments, the first interface is a network port, and the network port is adapted to be connected to an RJ45 plug;
[0010] The second interface is a circular connector interface, and the circular connector interface is used for adapting and connecting with a circular connector;
[0011] The third interface is a Type C interface, and the Type C interface is used to adapt and connect with a Type C plug.
[0012] In some embodiments, the camera body includes a front seat, a rear seat and a shell, the shell is a hollow structure, one end of the shell is detachably connected to the front seat, and the other end of the shell is detachably connected to the rear seat;
[0013] The lens mounting portion is arranged on the front seat, and the network port, the circular connector interface, and the Type C interface are arranged on the rear seat.
[0014] In some embodiments, the shell includes a shell and a side cover, the shell includes a side panel, a back panel and another side panel fixedly connected in sequence, the two side panels are located on the same side of the back panel and are respectively arranged perpendicular to the back panel, the two side panels are respectively provided with convex portions at one end away from the back panel, the side cover is provided with a concave portion, the convex portion is adapted to be inserted into the concave portion, so that the shell forms a square frame structure that passes through from top to bottom.
[0015] In some embodiments, both ends of the side plate and / or the back plate are respectively provided with first fixing holes, and both ends of the side cover are respectively provided with second fixing holes;
[0016] The front seat is provided with a first boss portion, and the rear seat is provided with a second boss portion, the first boss portion is adapted to be arranged at one end of the shell, and the second boss portion is adapted to be inserted into the other end of the shell, the first boss portion and / or the second boss portion are provided with a first screw hole at a position corresponding to the first fixing hole, a first screw passes through the first fixing hole and is threadedly connected to the first screw hole, the first boss portion and / or the second boss portion are provided with a second screw hole at a position corresponding to the second fixing hole, and a second screw passes through the second fixing hole and is threadedly connected to the second screw hole.
[0017] In some embodiments, a plurality of fixing holes are respectively provided on the front seat and / or the rear seat and / or the outer shell, and the fixing holes are used to install and fix the camera body.
[0018] In some embodiments, the back seat is provided with a first mounting hole, a second mounting hole, and a third mounting hole, the first mounting hole is provided on one side of the end of the back seat, the second mounting hole and the third mounting hole are provided on the other side of the end of the back seat, the first mounting hole, the second mounting hole, and the third mounting hole respectively pass through both ends of the back seat, the network port is adapted to be installed in the first mounting hole, the circular connector interface is adapted to be installed in the second mounting hole, and the Type C interface is adapted to be installed in the third mounting hole.
[0019] In some embodiments, first screw holes are respectively provided on both sides of the first mounting hole, and the first screw holes are used to adapt and connect with the first screws on the RJ45 plug;
[0020] A second screw hole is provided on one side of the third mounting hole, and the second screw hole is used to adapt and connect with the second screw of the Type C plug.
[0021] In some embodiments, it further comprises:
[0022] A first circuit board is arranged on a side of the rear seat close to the front seat, and the circular connector interface and the Type C interface are respectively connected to the first circuit board;
[0023] The second circuit board is arranged on a side of the first circuit board close to the front seat. The second circuit board is connected to the first circuit board through a connecting seat. A hollow portion is arranged on the first circuit board. The network port passes through the hollow portion and is connected to the second circuit board.
[0024] In some embodiments, the lens mounting portion is a mounting slot, and the mounting slot is used to mount a standard C-mount lens;
[0025] The end surface size of the camera body away from the lens mounting portion is 29mm*29mm.
[0026] Compared with the prior art, the industrial camera provided by the utility model has the following beneficial effects:
[0027] 1. The industrial camera provided by the utility model has a Type C interface at one end of the camera body away from the lens mounting part. The Type C interface can be configured to support an IIC or RS232 communication interface. It can not only control the zoom and autofocus lens and other IIC or RS232 devices through IIC or RS232, but also supply power to external IIC or RS232 devices.
[0028] 2. The industrial camera provided by the utility model has a TypeC interface at one end of the camera body away from the lens mounting part. The TypeC interface can be configured as an LED light source control interface to supply power to the LED light source and control the strobe and brightness of the LED light source. We can integrate the constant current control of the LED into the camera. In this way, when the camera receives an external photo trigger signal input, it can synchronously control the exposure of the photosensitive chip and the flash of the light source according to the timing of the photosensitive chip, greatly reducing the delay. The camera and the light source are only connected through the TypeC multi-function port. The control of the light source is the same as the function of the camera itself, and is controlled by sharing a common network cable with the camera.
[0029] 3. The industrial camera provided by the utility model has a Type C interface at one end of the camera body away from the lens mounting part. The Type C interface can be configured to provide one optocoupler input and three optocoupler outputs. The standard 6-pin connector plus the Type C interface enables the industrial camera to provide 6 optocoupler isolation outputs and one configurable GPIO, which can meet different application scenarios. Users do not need to use an additional IO card for device status communication, which saves costs and simplifies system design. Moreover, all IOs are the same as the ordinary settings of conventional cameras. Only the camera registers need to be set through the network port to achieve operation. Customers only need to call the SDK function of the camera to complete the industrial camera settings, image acquisition and multi-channel IO control.
[0030] 4. The industrial camera provided by the utility model has a back size of only 29mm*29mm, and the newly added Type C interface also provides a wire fixing screw hole to ensure the reliability of the connection and meet the stringent requirements of industrial applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.
[0032] Figure 1 It is a structural schematic diagram of an industrial camera according to a preferred embodiment of the utility model;
[0033] Figure 2 It is a structural schematic diagram of another viewing angle of the industrial camera of the preferred embodiment of the utility model;
[0034] Figure 3 It is a schematic diagram of the internal structure of an industrial camera according to a preferred embodiment of the utility model;
[0035] Figure 4 It is a schematic diagram of the exploded structure of the housing of the preferred embodiment of the utility model;
[0036] Figure 5 It is a structural schematic diagram of the rear seat of the preferred embodiment of the utility model;
[0037] Figure 6 It is a structural schematic diagram of the front seat of the preferred embodiment of the utility model;
[0038] Figure 7 It is a schematic diagram of the installation structure of the network port, circular connector interface, and Type C interface of the preferred embodiment of the utility model;
[0039] Figure 8 It is a schematic diagram of the connection structure of the network port, the circular connector interface, and the Type C interface of the preferred embodiment of the utility model.
[0040] Description of Figure Numbers:
[0041] Camera body 1, front seat 11, first boss portion 111, mounting groove 112, rear seat 12, second boss portion 121, first mounting hole 122, second mounting hole 123, third mounting hole 124, first screw hole 125, second screw hole 126, outer shell 13, shell 131, side plate 1311, back plate 1312, convex portion 1313, concave portion 1314, side cover 132, first fixing hole 133, second fixing hole 134, first screw hole 14, first screw 141, second screw hole 15, second screw 151, fixing hole 16, network port 2, circular connector interface 3, Type C interface 4, first circuit board 5, connecting seat 51, second circuit board 6. DETAILED DESCRIPTION
[0042] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.
[0043] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".
[0044] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0045] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0046] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0047] In one embodiment, the reference specification Figures 1 to 8 The utility model provides an industrial camera, comprising: a camera body 1 and a lens mounting portion, a first interface, a second interface and a third interface arranged on the camera body 1. The lens mounting portion is arranged at one end of the camera body 1 and is used to install the camera lens. The first interface, the second interface and the third interface are arranged at one end of the camera body 1 away from the lens mounting portion. The first interface is used to transmit images, the second interface is used for power supply and general input and output, and the third interface is used for input and output of expanded functions.
[0048] Specifically, the first interface is a network port 2, which is used to adapt to an RJ45 plug; the second interface is a circular connector interface 3, which is used to adapt to a circular connector; the third interface is a Type C interface 4, which is used to adapt to a Type C plug. The lens mounting portion is a mounting groove 112, which is used to install a standard C-mount lens; the end face size of the camera body 1 away from the lens mounting portion is 29mm*29mm.
[0049] In this embodiment, by setting a TypeC interface 4 at one end of the camera body 1 away from the lens mounting portion, the TypeC interface 4 can be configured to support an IIC or RS232 communication interface, which can not only control the zoom and autofocus lens and other IIC or RS232 devices through IIC or RS232, but also supply power to external IIC or RS232 devices. For example, in some scenarios, in order to compensate for the impact of temperature on high-precision testing, a temperature sensor is sometimes installed on the lens, generally with an IIC interface; in this case, the temperature sensor can be powered through the TypeC interface 4 of the industrial camera, and the temperature can be read in real time through IIC.
[0050] By setting a TypeC interface 4 at one end of the camera body 1 away from the lens mounting part, the TypeC interface 4 can be configured as an LED light source control interface to supply power to the LED light source and control the stroboscopic and brightness of the LED light source. We can integrate the constant current control of the LED into the camera, so that when the camera receives the external trigger signal input, it synchronously controls the exposure of the photosensitive chip and the light source according to the timing of the photosensitive chip, greatly reducing the delay. The camera and the light source are only connected through the TypeC interface 4, and the control of the light source is the same as the function of the camera itself, and is controlled by sharing a common network cable with the camera. In some other applications, applications that do not require high precision often use direct current from the industrial site to power the light source. However, in this way, the light source can generally only be always on and cannot be stroboscopically controlled, which may cause problems such as LED heating and shortened life; by integrating a MOS tube inside the camera and providing an open drain output through the TypeC interface 4, the stroboscopic control of the light source can be completed, and the PWM dimming of the light source can be achieved by setting the pulse frequency in the camera.
[0051] By setting a Type C interface 4 at the end of the camera body 1 away from the lens mounting part, the Type C interface 4 can be configured to provide one optocoupler input and three optocoupler outputs. The standard 6-pin connector plus the Type C interface 4 enables the industrial camera to provide 6 optocoupler isolation outputs and one configurable GPIO, which can meet different application scenarios. Users do not need to use an additional IO card for device status communication, which saves costs and simplifies system design; and all IOs are the same as the ordinary settings of conventional cameras. Only the network port and the camera registers need to be set to implement the operation. The customer only needs to call the SDK function of the camera to complete the industrial camera settings, image acquisition and multi-channel IO control.
[0052] In this embodiment, the first interface and the second interface can be designed as conventional interfaces of conventional industrial cameras, namely, the network port 2 and the circular connector interface 3, which provide power supply, 1 optocoupler input, 1 optocoupler output and 1 configurable GPIO, and are compatible with many standard 6-pin trigger power cables on the market; at the same time, by designing a Type C interface 4 on the camera body 1, the Type C interface 4 can be used as an extended multi-function port to realize 8 input and output with different functional combinations according to the needs. Of course, different input and output are required for different applications. We can realize a variety of combinations according to customer requirements. For example, we can define it as 4 optocoupler outputs. If isolated output is not required, 7 additional GPIOs can also be realized. In one embodiment, refer to the attached manual. Figures 3 to 8 The camera body 1 includes a front seat 11, a rear seat 12 and a shell 13. The shell 13 is a hollow structure. One end of the shell 13 is detachably connected to the front seat 11, and the other end of the shell 13 is detachably connected to the rear seat 12. The lens mounting part is arranged on the front seat 11, and the network port 2, the circular connector interface 3, and the Type C interface 4 are arranged on the rear seat 12.
[0053] Specifically, refer to the attached manual Figure 4 The shell 13 includes a shell 131 and a side cover 132. The shell 131 includes a side plate 1311, a back plate 1312 and another side plate 1311 which are fixedly connected in sequence. The two side plates 1311 are located on the same side of the back plate 1312 and are respectively arranged perpendicular to the back plate 1312. The two side plates 1311 are respectively provided with convex portions 1313 at one end away from the back plate 1312. The side cover 132 is provided with a concave portion 1314. The convex portion 1313 is adapted to be inserted into the concave portion 1314, so that the shell 13 forms a square frame structure that passes through from top to bottom.
[0054] Reference Manual Attached Figures 3 to 6 , first fixing holes 133 are respectively provided at both ends of the side plate 1311 and / or the back plate 1312, and second fixing holes 134 are respectively provided at both ends of the side cover 132; the front seat 11 is provided with a first boss portion 111, and the rear seat 12 is provided with a second boss portion 121, the first boss portion 111 is adapted to be inserted at one end of the shell 13, and the second boss portion 121 is adapted to be inserted at the other end of the shell 13, and a first screw hole 14 is provided at a position corresponding to the first fixing hole 133 of the first boss portion 111 and / or the second boss portion 121, and a first screw 141 passes through the first fixing hole 133 and is threadedly connected to the first screw hole 14, and a second screw hole 15 is provided at a position corresponding to the second fixing hole 134 of the first boss portion 111 and / or the second boss portion 121, and a second screw 151 passes through the second fixing hole 134 and is threadedly connected to the second screw hole 15. A plurality of fixing holes 16 are respectively provided on the front seat 11 and / or the rear seat 12 and / or the housing 13 , and the fixing holes 16 are used to install and fix the camera body 1 .
[0055] Reference Manual Attached Figure 5 The rear seat 12 is provided with a first mounting hole 122, a second mounting hole 123, and a third mounting hole 124. The first mounting hole 122 is provided on one side of the end of the rear seat 12, and the second mounting hole 123 and the third mounting hole 124 are provided on the other side of the end of the rear seat 12. The first mounting hole 122, the second mounting hole 123, and the third mounting hole 124 respectively pass through the two ends of the rear seat 12, the network port 2 is adapted to be installed in the first mounting hole 122, the circular connector interface 3 is adapted to be installed in the second mounting hole 123, and the Type C interface 4 is adapted to be installed in the third mounting hole 124.
[0056] Among them, first screw holes 125 are respectively provided on both sides of the first mounting hole 122, and the first screw hole 125 is used to adapt and connect with the first screw on the RJ45 plug; a second screw hole 126 is provided on one side of the third mounting hole 124, and the second screw hole 126 is used to adapt and connect with the second screw of the TypeC plug.
[0057] In this embodiment, by designing and arranging the positions of the components on the rear seat 12, when the size of the back of the industrial camera is only 29mm*29mm, the newly added Type C interface 4 can also provide a wire fixing screw hole to ensure the reliability of the connection and meet the stringent requirements of industrial applications.
[0058] Further, refer to the attached manual Figure 7 , Figure 8 The industrial camera also includes: a first circuit board 5 and a second circuit board 6. The first circuit board 5 is arranged on the side of the rear seat 12 close to the front seat 11, and the circular connector interface 3 and the Type C interface 4 are respectively connected to the first circuit board 5; the second circuit board 6 is arranged on the side of the first circuit board 5 close to the front seat 11, and the second circuit board 6 is connected to the first circuit board 5 through the connecting seat 51. A hollow portion is provided on the first circuit board 5, and the network port 2 is connected to the second circuit board 6 through the hollow portion.
[0059] Of course, the industrial camera also includes some other electronic components to realize the specific functions of the industrial camera, which can adopt the existing technology; in addition, the specific structure of the network port 2, the circular connector interface 3, and the Type C interface 4, the connection method with the internal electronic components, and how to realize the specific functions can also adopt the existing technology, which will not be elaborated here.
[0060] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0061] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.
Claims
1. An industrial camera, characterized in that: include: A camera body and a lens mounting portion, a first interface, a second interface and a third interface arranged on the camera body, wherein the lens mounting portion is arranged at one end of the camera body and is used to install a camera lens, the first interface, the second interface and the third interface are arranged at an end of the camera body away from the lens mounting portion, the first interface is used to transmit images, the second interface is used for power supply and general input and output, and the third interface is used for input and output of expanded functions.
2. The industrial camera according to claim 1, characterized in that: The first interface is a network port, and the network port is used to adapt and connect with an RJ45 plug; The second interface is a circular connector interface, and the circular connector interface is used for adapting and connecting with a circular connector; The third interface is a Type C interface, and the Type C interface is used to adapt and connect with a Type C plug.
3. The industrial camera according to claim 2, characterized in that: The camera body comprises a front seat, a rear seat and a shell, wherein the shell is a hollow structure, one end of the shell is detachably connected to the front seat, and the other end of the shell is detachably connected to the rear seat; The lens mounting portion is arranged on the front seat, and the network port, the circular connector interface, and the Type C interface are arranged on the rear seat.
4. The industrial camera according to claim 3, characterized in that: The shell includes a shell and a side cover, and the shell includes a side plate, a back plate and another side plate fixedly connected in sequence, the two side plates are located on the same side of the back plate and are respectively arranged perpendicular to the back plate, and the two side plates are respectively provided with convex parts at one end away from the back plate, and the side cover is provided with a concave part, and the convex part is adapted to be inserted into the concave part, so that the shell forms a square frame structure that passes through from top to bottom.
5. The industrial camera according to claim 4, characterized in that: The two ends of the side plate and / or the back plate are respectively provided with first fixing holes, and the two ends of the side cover are respectively provided with second fixing holes; The front seat is provided with a first boss portion, and the rear seat is provided with a second boss portion, the first boss portion is adapted to be inserted in one end of the shell, and the second boss portion is adapted to be inserted in the other end of the shell, a first screw hole is provided at a position corresponding to the first fixing hole of the first boss portion and / or the second boss portion, a first screw passes through the first fixing hole and is threadedly connected to the first screw hole, a second screw passes through the second fixing hole and is threadedly connected to the second screw hole.
6. The industrial camera according to claim 3, characterized in that: The front seat and / or the rear seat and / or the shell are respectively provided with a plurality of fixing holes, and the fixing holes are used to install and fix the camera body.
7. The industrial camera according to any one of claims 3 to 6, characterized in that: The back seat is provided with a first mounting hole, a second mounting hole, and a third mounting hole, wherein the first mounting hole is provided at one side of the end of the back seat, and the second mounting hole and the third mounting hole are provided at the other side of the end of the back seat, and the first mounting hole, the second mounting hole, and the third mounting hole respectively pass through both ends of the back seat, the network port is adapted to be installed in the first mounting hole, the circular connector interface is adapted to be installed in the second mounting hole, and the Type C interface is adapted to be installed in the third mounting hole.
8. The industrial camera according to claim 7, characterized in that: First screw holes are respectively provided on both sides of the first mounting hole, and the first screw holes are used to adapt and connect with the first screws on the RJ45 plug; A second screw hole is provided on one side of the third mounting hole, and the second screw hole is used to adapt and connect with the second screw of the Type C plug.
9. The industrial camera according to claim 7, characterized in that: Also includes: A first circuit board is arranged on a side of the rear seat close to the front seat, and the circular connector interface and the Type C interface are respectively connected to the first circuit board; The second circuit board is arranged on a side of the first circuit board close to the front seat. The second circuit board is connected to the first circuit board through a connecting seat. A hollow portion is arranged on the first circuit board. The network port passes through the hollow portion and is connected to the second circuit board.
10. The industrial camera according to claim 1, characterized in that: The lens mounting portion is a mounting slot, and the mounting slot is used to mount a standard C-mount lens; The end surface size of the camera body away from the lens mounting portion is 29mm*29mm.