Endoscope system

Abstract

The endoscope system comprises an endoscope body, a light source module and an image processing module, the endoscope body is provided with a light guide channel extending in the length direction of the endoscope body, a light passing part is arranged in the light guide channel, the light guide channel is used for enabling illumination light to be transmitted along the light guide channel, the light passing part is used for enabling the illumination light to pass through, and the light passing amount of the light passing part is variable; the light source module comprises a light source, a light inlet of the light guide channel is formed in the light outlet side of the light source, and the light source is used for emitting illumination light and enabling the illumination light to be transmitted along the light guide channel; the image processing module is connected with the light passing part and used for controlling the light passing part so that the light passing amount of the light passing part can be changed. According to the endoscope system, the brightness of the illumination light irradiated to the target part after being transmitted along the light guide channel can be adjusted by controlling the light passing part, so that the light source module does not need to be provided with a control system, the complexity of the light source module can be reduced, a large amount of interaction between the light source module and the image processing module can be avoided, the coupling property is reduced, and the reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of endoscopy, and in particular to an endoscopy system. Background Technology

[0002] Medical endoscopes mainly consist of three parts: the endoscope body, the image processing module, and the light source module. Taking a commonly used electronic endoscope as an example, the endoscope body has multiple channels arranged in parallel inside, used for accommodating illumination fibers, image transmission fibers, air transmission channels, water transmission channels, or instrument channels, etc. The working principle is that the endoscope body extends into the body cavity, the illumination fibers transmit illumination light and direct it to the target area, the image sensor inside the endoscope acquires the light from the target area and generates an image, the image processing module processes the image and outputs it to a display.

[0003] To prevent overexposure or underexposure in images, the illumination brightness of the target area cannot remain constant and needs to be adjusted in real time. In existing technologies, the light source module, in addition to the light source and driving components, also requires a control system. This control system is connected to the driving components and interacts with the image processing module. Based on control signals from the image processing module, the control system controls the brightness of the light source through the driving components to adjust the illumination brightness of the target area. However, this approach requires a control system for the light source module, which needs to be able to control the driving components based on control signals from the image processing module. This makes the control system complex, the light source module bulky, and requires extensive interaction with the image processing module, necessitating high coupling between the two. Therefore, it is susceptible to external interference, affecting reliability. Utility Model Content

[0004] The purpose of this invention is to provide an endoscope system that can adjust the illumination brightness of the target area, reduce the complexity of the light source module, avoid the need for extensive interaction between the light source module and the image processing module, reduce coupling, and improve reliability.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An endoscope system comprising:

[0007] The mirror body is provided with a light guide channel extending along the length direction of the mirror body, and a light transmission part is provided in the light guide channel. The light guide channel is used to transmit illumination light along the light guide channel, and the light transmission part is used to allow the illumination light to pass through, and the light transmission amount of the light transmission part is variable.

[0008] A light source module includes a light source, wherein the light inlet of the light guide channel is disposed on the light emitting side of the light source, and the light source is used to emit the illumination light so that the illumination light is transmitted along the light guide channel;

[0009] An image processing module, connected to the light-transmitting part, is used to control the light-transmitting part and change the amount of light transmitted by the light-transmitting part.

[0010] Optionally, the light-transmitting part includes an aperture with a variable light transmission amount.

[0011] Optionally, the light-transmitting part includes a ring body and a plurality of aperture blades, the plurality of aperture blades are connected in sequence and any one of the aperture blades is connected to the ring body, the plurality of aperture blades form a light-transmitting opening, and the ring body rotates around the central axis of the ring body to change the size of the light-transmitting opening formed by the plurality of aperture blades.

[0012] Optionally, the light-transmitting part further includes a gear, and the outer peripheral surface of the ring body is provided with teeth. The teeth of the ring body and the teeth of the gear mesh, causing the gear to rotate and drive the ring body to rotate around the central axis of the ring body, thereby changing the size of the light-transmitting opening formed by the plurality of aperture blades.

[0013] Optionally, the light-transmitting part includes a plurality of electrochromic elements, which are annular in shape. The centers of the plurality of electrochromic elements coincide and are arranged in order of increasing diameter. The light transmittance of any one of the electrochromic elements is variable.

[0014] Optionally, the light-transmitting part further includes a control device, the plurality of electrochromic elements are respectively connected to the control device, the control device is used to apply voltage to the plurality of electrochromic elements to change the light transmittance of the electrochromic elements, and the image processing module is connected to the control device.

[0015] Optionally, the light-transmitting part includes a plurality of polarizers arranged sequentially along the optical axis, at least one of the plurality of polarizers being rotatable about the optical axis, so that the amount of light transmitted by the light-transmitting part is variable.

[0016] Optionally, the scope body includes an operating part for handheld use and an insertion part for insertion into a body cavity;

[0017] The operation unit is equipped with an input module for inputting control signals to adjust the light transmission amount of the light-transmitting part. The input module is connected to the image processing module.

[0018] Optionally, the light-transmitting part is disposed within the light-guiding channel located within the operating part.

[0019] Optionally, an image sensor is also provided in the mirror body for acquiring light signals from the target area and generating an image based on the acquired light signals, and the image sensor is connected to the image processing module.

[0020] As can be seen from the above technical solution, the endoscope system provided by this utility model includes an endoscope body, a light source module, and an image processing module. The endoscope body is provided with a light guide channel extending along the length of the endoscope body, and a light transmission part is provided in the light guide channel. The light guide channel is used to transmit illumination light along the light guide channel, and the light transmission part is used to allow illumination light to pass through, and the light transmission amount of the light transmission part is variable. The light source module includes a light source, and the light inlet of the light guide channel is provided on the light output side of the light source. The light source is used to emit illumination light, so that the illumination light is transmitted along the light guide channel. The image processing module is connected to the light transmission part and is used to control the light transmission part, so that the light transmission amount of the light transmission part is changed.

[0021] The endoscope system of this invention has a light-transmitting part set in the light guide channel of the endoscope body. The light transmission amount of the light-transmitting part is variable. By controlling the light-transmitting part, the amount of light after the illumination light transmitted along the light guide channel passes through the light-transmitting part can be changed, thereby adjusting the illumination brightness of the target area after transmission along the light guide channel. This means that it is not necessary to adjust the light source module when adjusting the illumination brightness of the target area, and it is not necessary to set up a control system for the light source module. This reduces the complexity of the light source module, avoids the need for a lot of interaction between the light source module and the image processing module, reduces coupling, and improves reliability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an endoscope system provided in one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the connection between the aperture and the image processing module of an endoscope system according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the light transmission section of an endoscope system provided in another embodiment of the present invention.

[0026] The reference numerals in the accompanying drawings include:

[0027] 100-Mirror body, 101-Extension part, 102-Operating part, 103-First light guide channel, 104-Second light guide channel, 105-Light transmission part, 106-Aperture blade, 107-Ring body, 108-Light transmission port, 109-Second connection point, 110-First connection point, 111-Gear, 112-Electrochromic element, 113-Control device, 200-Light source module, 201-Light source, 202-Drive assembly, 300-Image processing module, 301-Knob, 302-Cable. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] This embodiment provides an endoscope system, including:

[0030] The mirror body is provided with a light guide channel extending along the length direction of the mirror body, and a light transmission part is provided in the light guide channel. The light guide channel is used to transmit illumination light along the light guide channel, and the light transmission part is used to allow the illumination light to pass through, and the light transmission amount of the light transmission part is variable.

[0031] A light source module includes a light source, wherein the light inlet of the light guide channel is disposed on the light emitting side of the light source, and the light source is used to emit the illumination light so that the illumination light is transmitted along the light guide channel;

[0032] An image processing module, connected to the light-transmitting part, is used to control the light-transmitting part and change the amount of light transmitted by the light-transmitting part.

[0033] The light source emits illumination light, which enters the light guide channel of the mirror and is transmitted along the light guide channel. A light-transmitting part is provided in the light guide channel, and the amount of light transmitted by the light-transmitting part is variable, so that the amount of light transmitted along the light guide channel after passing through the light-transmitting part is variable.

[0034] The endoscope system of this embodiment can control the light transmission section through the image processing module (or graphics processing unit, GPU) to change the amount of illumination light after passing through the light transmission section, adjust the amount of illumination light transmitted along the light guide channel, and adjust the brightness of the illumination light illuminating the target area after transmission along the light guide channel. This means that adjusting the brightness of the illumination light illuminating the target area does not necessarily require adjusting the light source module, and the light source module does not need to have a control system to adjust the light intensity of the light source. This reduces the complexity of adjusting the light source module, avoids a lot of interaction between the light source module and the image processing module, reduces coupling, and improves reliability.

[0035] For example, refer to Figure 1 , Figure 1 The figure shows a schematic diagram of an endoscope system according to one embodiment. The endoscope system includes a light source module 200, a scope body 100, and an image processing module 300. The light source module 200 includes a light source 201, and the light inlet of the light guide channel is located on the light-emitting side of the light source 201. The light guide channel extends along the length of the scope body 100. A light-transmitting part 105 is provided within the light guide channel, dividing it into a first light guide channel 103 and a second light guide channel 104. Due to the function of the light-transmitting part 105, the amount of illumination light transmitted along the second light guide channel 104 is different from the amount of illumination light transmitted along the first light guide channel 103. The image processing module 300 controls the light-transmitting part 105 to change the amount of light transmitted, thereby controlling the amount of illumination light transmitted along the second light guide channel 104 to ensure that the illumination brightness of the target area after transmission along the second light guide channel 104 meets the requirements. The target area refers to the area where the endoscope system will acquire images.

[0036] In this embodiment, the structure of the light-transmitting part 105 is not limited, as long as it can adjust the amount of illumination light. In some embodiments, the light-transmitting part 105 may include an aperture with variable light transmission. An aperture is provided in the light guide channel of the mirror body 100. By controlling the aperture, the amount of illumination light transmitted along the light guide channel is adjusted, and the brightness of the illumination light illuminating the target area after transmission along the light guide channel is adjusted. In some embodiments, the aperture is connected to a motor, and the motor is connected to the image processing module 300. The image processing module 300 transmits control signals to the motor, and the motor controls the aperture to change the amount of light transmission according to the control signals.

[0037] In some embodiments, the light-transmitting part 105 may include a ring body and a plurality of aperture blades. The plurality of aperture blades are connected sequentially, and each aperture blade is connected to the ring body. The plurality of aperture blades form a light-transmitting opening. Rotation of the ring body around its central axis can change the size of the light-transmitting opening, thereby changing the amount of light transmitted. In some embodiments, a first connection point may be provided on the side of any aperture blade, and this first connection point is connected to the first connection point on the side of an adjacent aperture blade. A second connection point may be provided on the end edge of any aperture blade, and this second connection point is connected to the ring body. The light-transmitting opening increases / decreases when the ring body rotates clockwise, and decreases / increases when the ring body rotates counterclockwise. For example, see [reference needed]. Figure 2 , Figure 2 The figure shows a schematic diagram of the connection between the aperture and the image processing module of an endoscope system according to one embodiment. The aperture includes a ring body 107 and multiple aperture blades 106. The multiple aperture blades 106 are connected in sequence, and any aperture blade 106 is connected to the ring body 107. A first connection point 110 is provided on the side of any aperture blade 106, and a second connection point 109 is provided on the end. The first connection point 110 on the side of any aperture blade 106 is connected to the first connection point 110 on the side of the adjacent aperture blade 106. The second connection point 109 on the end of any aperture blade 106 is connected to the ring body 107. The multiple aperture blades 106 form a light-passing port 108.

[0038] In some embodiments, the light-transmitting part 105 may include a ring body 107 and a plurality of aperture blades 106. The plurality of aperture blades 106 are connected in sequence, and any one of the aperture blades 106 is connected to the ring body 107. The plurality of aperture blades 106 form a light-transmitting opening 108. The gear 111 is rotatably connected to the ring body 107, causing the gear 111 to rotate and drive the ring body 107 to rotate around its central axis, thereby changing the size of the light-transmitting opening 108 formed by the plurality of aperture blades 106. By driving the ring body 107 to rotate around its central axis through the gear 111, the size of the light-transmitting opening 108 formed by the plurality of aperture blades 106 is changed, thereby changing the amount of light transmitted through the aperture.

[0039] In some implementations, refer to Figure 2The light-transmitting part further includes a gear 111. The outer circumferential surface of the ring 107 is provided with teeth. The teeth of the ring 107 mesh with the teeth of the gear 111, causing the gear 111 to rotate and drive the ring 107 to rotate around its central axis, thus changing the size of the light-transmitting opening 108 of the aperture and altering the amount of light transmitted through the aperture. In some embodiments, the gear 111 can be connected to a motor, which drives the gear 111 to rotate. The image processing module 300 is connected to the motor and can transmit control signals to the motor. For example, see [reference needed]. Figure 2 As shown, the outer circumferential surface of the ring 107 meshes with the teeth of the gear 111.

[0040] By controlling the rotation of the motor to drive the gear 111, the rotation of the gear 111 drives the ring 107 to rotate. The rotation of the ring 107 causes the aperture blades 106 and the second connection point 109 of the ring 107 to rotate around the central axis of the aperture. The rotation of the second connection point 109 of each aperture blade 106 around the central axis of the aperture causes each aperture blade 106 to rotate around the central axis of the aperture through the connection between each first connection point 110. In this way, the size of the light passage 108 of the aperture can be changed, and ultimately the amount of light flux can be changed. Figure 2 As shown, rotating the ring 107 clockwise increases the luminous flux, while rotating it counterclockwise decreases the luminous flux.

[0041] In some embodiments, the light-transmitting section 105 may include multiple electrochromic elements, which are annular in shape. The centers of the multiple electrochromic elements coincide and they are arranged sequentially according to their diameter from smallest to largest. The transmittance of any one of the electrochromic elements is variable, thus making the light transmission amount of the light-transmitting section 105 variable. Each electrochromic element forms an annular light-transmitting area, and the multiple electrochromic elements form multiple annular light-transmitting areas with coincident centers arranged radially. By controlling the transmittance of each electrochromic element individually, the light transmission amount of the light-transmitting section 105 can be adjusted. In some embodiments, the electrochromic elements are used to undergo an oxidation-reduction reaction under the action of an electric field to change their transmittance. The change in transmittance of the electrochromic elements can be controlled by applying a voltage to them, and continuous adjustment of their transmittance from 0-100% can be achieved through voltage regulation. In some embodiments, the light-transmitting part 105 may further include a control device, wherein the plurality of electrochromic elements are respectively connected to the control device, and the control device is used to apply voltage to the plurality of electrochromic elements to change the light transmittance of the electrochromic elements. The image processing module 300 is connected to the control device. See also, for example, [reference needed]. Figure 3 , Figure 3The following is a schematic diagram of the structure of the light transmission section of an endoscope system provided in another embodiment. As shown in the figure, the light transmission section 105 includes a plurality of electrochromic elements 112. The electrochromic elements 112 are annular, and the centers of each electrochromic element 112 coincide and are arranged in order of increasing diameter. Each electrochromic element 112 is connected to a control device 113.

[0042] In some embodiments, the light-transmitting section 105 includes a plurality of polarizers arranged sequentially along the optical axis. At least one of the polarizers is rotatable about the optical axis, making the light transmission amount of the light-transmitting section 105 variable. Illumination light passes sequentially through the plurality of polarizers, and the rotatability of at least one polarizer about the optical axis changes the angle between the polarization axis of that polarizer and the polarization axes of other polarizers, thereby adjusting the amount of light after the illumination light passes through the plurality of polarizers and adjusting the light transmission amount of the light-transmitting section 105. In some embodiments, teeth are provided on the outer peripheral surface of the polarizers, and the teeth on the outer peripheral surface of the polarizers mesh with gears of a motor. The motor drives the gears to rotate, and the rotation of the gears drives the polarizers to rotate. In some embodiments, the motor shaft is connected to the polarizer shaft via a conveyor belt, and the motor drives the polarizer shaft to rotate via the conveyor belt, thus driving the polarizers to rotate. The motor is connected to the image processing module 300.

[0043] In some embodiments, the light-transmitting section 105 may include a first polarizer and a second polarizer arranged sequentially along the optical axis. The first polarizer and / or the second polarizer can rotate around the optical axis, making the angle between the polarization axes of the first polarizer and the second polarizer variable, thus making the light transmission amount of the light-transmitting section 105 variable. Illumination light passes through the first polarizer and then further through the second polarizer. The angle between the polarization axes of the first polarizer and the second polarizer is different, resulting in different light transmission amounts after the illumination light passes through the first polarizer and the second polarizer. By controlling the rotation of the first polarizer and / or the second polarizer around the optical axis, the angle between the polarization axes of the first polarizer and the second polarizer can be changed, thereby adjusting the amount of light after the illumination light passes through the first polarizer and the second polarizer, and thus adjusting the light transmission amount of the light-transmitting section 105. In some embodiments, when the angle between the polarization axes of the first polarizer and the second polarizer increases from 0° to 90°, the transmittance of the light-transmitting section 105 decreases according to a cosine square function.

[0044] The image processing module 300 is connected to the light transmission unit 105. The image processing module 300 is used to transmit control signals to the light transmission unit 105 to change the light transmission amount.

[0045] In some embodiments, the endoscope 100 may include an operating part 102 for handheld use and an insertion part 101 for insertion into a body cavity. The user can hold the operating part 102 of the endoscope 100 to operate the endoscope 100 to examine the patient. In some embodiments, the light-transmitting part 105 may be disposed within a light guide channel located within the operating part 102, thus avoiding the need to place the light-transmitting part 105 within the light guide channel of the insertion part 101 and preventing an increase in the volume of the insertion part 101 of the endoscope. See exemplary embodiments. Figure 1 As shown, a light-transmitting part 105 is provided in the light guide channel of the operation part 102. The light guide channel is divided into a first light guide channel 103 and a second light guide channel 104. The illumination light from the light source 201 is transmitted along the first light guide channel 103, and after passing through the light-transmitting part 105, it continues to be transmitted along the second light guide channel 104.

[0046] In some embodiments, the operation unit 102 is provided with an input module for inputting control signals to adjust the light transmission amount of the light-transmitting unit 105. The input module is connected to the image processing module 300. In this embodiment, manual dimming is possible. The user inputs control signals through the input module on the operation unit 102. The control signals are transmitted to the image processing module 300, which then sends control signals to the light-transmitting unit 105 based on the input control signals. The light-transmitting unit 105 adjusts the light transmission amount according to the received control signals, thus manually adjusting the illumination brightness of the target area. The input module includes, but is not limited to, a keyboard, buttons, or knobs 301.

[0047] In some embodiments, an image sensor is also provided within the mirror body 100 for acquiring light signals from the target area and generating an image based on the acquired light signals. The image sensor is connected to the image processing module 300. In this embodiment, automatic dimming can be achieved. The image acquired by the image sensor is transmitted to the image processing module 300, which performs brightness detection on the image and sends a control signal based on the detected brightness. The control signal is transmitted to the light-transmitting unit 105, which adjusts the light transmission amount according to the received control signal, thereby automatically adjusting the illumination brightness of the target area. The image sensor may include, but is not limited to, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0048] In some implementations, the endoscope system may have both manual and automatic dimming modes, allowing the user to select either mode based on their needs. When the user selects manual dimming mode, they adjust the light intensity via the input module on the operation unit 102. When the user selects automatic dimming mode, the endoscope system automatically adjusts the illumination brightness of the target area based on the real-time image brightness.

[0049] In some embodiments, the light source module 200 may further include a driving component 202, connected to the light source 201, for outputting voltage or current to the light source 201 to control the light source 201 to emit illumination light. A keyboard, buttons, or knobs 301, etc., may be connected to the image processing module 300 via cables 302, and an image sensor may be connected to the image processing module 300 via cables.

[0050] The endoscope system of this embodiment has a light-transmitting part in the light guide channel of the endoscope body. The light transmission amount of the light-transmitting part is variable. By controlling the light transmission part to change the light transmission amount, the amount of light after the illumination light transmitted along the light guide channel passes through the light-transmitting part is changed. The brightness of the illumination light illuminating the target area after being transmitted along the light guide channel can be adjusted. During the examination using the endoscope system, it is not necessary to adjust the light source module. It is not necessary to change the brightness of the illumination light emitted by the light source, nor is it necessary to change the voltage or current output by the drive component to the light source. The illumination light emitted by the light source can maintain a stable brightness.

[0051] The endoscopic system provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0052] Furthermore, in the description of this utility model, it should be understood that the directional terms such as "front," "rear," "upper," "lower," "left," "right," "horizontal," "vertical," "horizontal," "top," and "bottom" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0053] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0054] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0055] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0056] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An endoscope system characterized by comprising: include: The mirror body is provided with a light guide channel extending along the length direction of the mirror body, and a light transmission part is provided in the light guide channel. The light guide channel is used to transmit illumination light along the light guide channel, and the light transmission part is used to allow the illumination light to pass through, and the light transmission amount of the light transmission part is variable. A light source module includes a light source, wherein the light inlet of the light guide channel is disposed on the light emitting side of the light source, and the light source is used to emit the illumination light so that the illumination light is transmitted along the light guide channel; An image processing module, connected to the light-transmitting part, is used to control the light-transmitting part and change the amount of light transmitted by the light-transmitting part.

2. The endoscope system of claim 1, wherein The light-transmitting part includes an aperture with variable light transmission.

3. The endoscope system of claim 1, wherein The light-transmitting part includes a ring body and multiple aperture blades. The multiple aperture blades are connected in sequence, and any one of the aperture blades is connected to the ring body. The multiple aperture blades form a light-transmitting opening. The ring body rotates around its central axis, thereby changing the size of the light-transmitting opening formed by the multiple aperture blades.

4. The endoscope system of claim 3, wherein The light-transmitting part also includes a gear. The outer circumferential surface of the ring body is provided with teeth. The teeth of the ring body and the teeth of the gear mesh, causing the gear to rotate and drive the ring body to rotate around the central axis of the ring body, thereby changing the size of the light-transmitting opening formed by the multiple aperture blades.

5. The endoscope system of claim 1, wherein The light-transmitting part includes multiple electrochromic elements, which are ring-shaped. The centers of the multiple electrochromic elements coincide and they are arranged in order of increasing diameter. The light transmittance of any one of the electrochromic elements is variable.

6. The endoscope system of claim 5, wherein The light-transmitting part further includes a control device, and the plurality of electrochromic elements are respectively connected to the control device. The control device is used to apply voltage to the plurality of electrochromic elements to change the light transmittance of the electrochromic elements. The image processing module is connected to the control device.

7. The endoscope system of claim 1, wherein The light-transmitting part includes a plurality of polarizers arranged sequentially along the optical axis. At least one of the plurality of polarizers can rotate around the optical axis, so that the amount of light transmitted by the light-transmitting part is variable.

8. The endoscope system according to any one of claims 1 to 7, characterized by, The mirror body includes an operating part for handheld use and an insertion part for insertion into the body cavity; The operation unit is equipped with an input module for inputting control signals to adjust the light transmission amount of the light-transmitting part. The input module is connected to the image processing module.

9. The endoscope system of claim 8, wherein The light-transmitting part is disposed within the light guide channel located within the operating part.

10. The endoscope system according to any one of claims 1 to 7, characterized by, The mirror body is also equipped with an image sensor for acquiring light signals from the target area and generating an image based on the acquired light signals. The image sensor is connected to the image processing module.

Images