Endoscope handle, endoscope and control method of endoscope

Abstract

The invention discloses an endoscope handle, an endoscope and a control method of the endoscope. The endoscope handle comprises a shell, a lens assembly, a driving assembly, an adjusting assembly and a control unit. The lens assembly is arranged in the cavity in the shell and comprises a zoom lens group and a focusing lens group which can reciprocate along an optical axis; the driving assembly is arranged in the cavity and drives at least one of the focusing lens group and the zoom lens group to move along the optical axis; the adjusting assembly is rotatably arranged on the shell and comprises a zooming adjusting part and a focusing adjusting part; the control unit comprises an operation module used for transmitting a control instruction to the control module and a detection module used for detecting the rotation amount of the zoom adjusting part and the focusing adjusting part and transmitting a detection signal to the control module. The control module controls the driving assembly according to at least one of the control instruction and the detection signal. The endoscope handle at least can solve the problem that an endoscope cannot achieve automatic zooming, automatic focusing, manual zooming and manual focusing at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an endoscope handle, an endoscope and a control method for an endoscope. Background Art

[0002] Endoscope is a widely used medical device. When doctors are performing surgery, they can introduce the endoscope into the diseased organ so that they can directly observe the pathological condition of the organ. The use of endoscope makes doctors more handy in dealing with disease diagnosis, surgical treatment and other links, which greatly improves the work efficiency of doctors. In addition, the endoscope can perform real-time image processing on the images taken by the endoscope during the operation to improve the quality of the image, thereby providing important reference information for the operation. The current rigid tube endoscope camera system consists of an endoscope optical mirror, an adapter bayonet, a camera handle and other parts. The endoscope optical mirror is responsible for guiding the light irradiated by the endoscope into the human body to the outside of the human body, and the adapter bayonet is responsible for collecting the light in the human body, and then further guiding it to the outside of the human body and imaging it in the camera handle. When using the endoscope camera system, medical staff can use the adjustment ring on the endoscope to realize optical magnification, focusing and other functions during use to make the picture clear.

[0003] During actual surgery, medical staff have to evenly distribute the near and far object distances in the field of view due to special circumstances in certain surgical scenes. Since the depth of field of the optical system is not compatible with the clarity of the foreground and background, and during the autofocus algorithm processing of the endoscope, there is a certain probability that the endoscope will focus on the foreground or background, resulting in an uncertain focus position. At this time, if the focus position of the endoscope is different from the position required by the doctor, it will cause difficulties for the medical staff's diagnosis and even affect the surgical process. Most of today's endoscopes only support a single automatic focus or a single manual focus to achieve focus and zoom functions, resulting in a poor experience for medical staff using the endoscope. Summary of the invention

[0004] The main purpose of the present invention is to provide an endoscope handle, an endoscope and a control method for the endoscope, which at least solves the problem that the endoscope cannot achieve automatic zoom and automatic focus as well as manual zoom and manual focus at the same time.

[0005] According to one aspect of the present invention, there is provided an endoscope handle, the endoscope handle comprising:

[0006] A shell having a cavity disposed therein;

[0007] A lens assembly, wherein the lens assembly is disposed in the cavity and comprises a zoom lens group and a focusing lens group sequentially disposed along the same optical axis, and both the zoom lens group and the focusing lens group can reciprocate along the optical axis;

[0008] A driving assembly, the driving assembly is disposed in the cavity and connected to the focusing lens group and the zoom lens group to drive at least one of the focusing lens group and the zoom lens group to move along the optical axis;

[0009] An adjustment component, the adjustment component comprising a zoom adjustment part and a focus adjustment part, and the zoom adjustment part and the focus adjustment part are both rotatably disposed on the housing;

[0010] A control unit, the control unit includes an operation module, a control module and a detection module, the operation module and the detection module are both communicatively connected to the control module, the operation module is used to transmit control instructions to the control module, the detection module is used to detect the rotation amount of the zoom adjustment part and the focus adjustment part and transmit a detection signal to the control module, and the control module controls the driving component according to at least one of the control instruction and the detection signal.

[0011] Further, the zoom adjustment unit and the focus adjustment unit both include an adjustment ring, the detection module includes a detection element, and the detection element includes a calculation module, a first light-emitting unit, and a first light-receiving unit for receiving light emitted by the first light-emitting unit;

[0012] Wherein, the adjustment ring is rotatably arranged on the housing around its own axis, and the adjustment ring is provided with a plurality of adjustment teeth arranged at intervals along the circumferential direction of the adjustment ring, and the spacing between two adjacent adjustment teeth is equal;

[0013] The first light-emitting portion and the first light-receiving portion are spaced apart on opposite sides of the adjusting tooth along the thickness direction of the adjusting tooth, and the adjusting tooth rotates with the adjusting ring to block the light emitted from the first light-emitting portion to the first light-receiving portion, and the calculation module is communicatively connected with the first light-receiving portion, and the calculation module calculates the rotation amount of the adjusting ring according to the number of light-blocking times of the adjusting tooth and transmits the detection signal to the control module.

[0014] Furthermore, the detection element includes at least two, and at least two of the detection elements are arranged at intervals along the circumferential direction of the adjustment ring. The control module controls the driving component according to the order of shading of at least two of the detection elements by the adjustment teeth to drive at least one of the focusing lens group and the zoom lens group to move along the optical axis.

[0015] Furthermore, along the circumferential direction of the optical axis, two adjacent detection elements are spaced apart by D degrees, and two adjacent adjustment teeth are spaced apart by P degrees, and D and P satisfy the relationship: Wherein, N is a positive integer.

[0016] Furthermore, the zoom adjustment unit and the focus adjustment unit each include an outer ring and an inner ring;

[0017] The inner ring is fixedly connected to the shell, the outer ring is sleeved on the outer circumference of the inner ring and can rotate around the axis of the inner ring itself, and the adjustment ring is arranged between the outer ring and the inner ring and is coaxially fixedly connected to the outer ring.

[0018] Furthermore, the shell includes a cylinder, the outer ring, the adjustment ring and the inner ring are all sleeved on the outer circumferential surface of the cylinder, and the axes of the outer ring, the adjustment ring and the inner ring are all coincident with the axis of the cylinder.

[0019] Further, the adjusting teeth are convexly arranged on the inner side surface or the outer peripheral side surface of the adjusting ring; or,

[0020] The adjusting teeth are convexly arranged on the end surface of the adjusting ring in the axial direction.

[0021] Further, the driving assembly includes a first driving device and a second driving device; wherein, one of the first driving device and the second driving device is connected to the focusing lens group to drive the focusing lens group to move along the optical axis, and the other of the first driving device and the second driving device is connected to the zoom lens group to drive the zoom lens group to move along the optical axis.

[0022] Furthermore, the endoscope handle also includes an imaging element and an image processing unit;

[0023] Wherein, the imaging element and the image processing unit are both arranged in the cavity, the imaging element is located on the image side of the lens assembly, and the image processing unit and the imaging element are both communicatively connected with the control module.

[0024] On the other hand, the present application also mentions an endoscope, which includes the endoscope handle mentioned above.

[0025] According to another aspect of the present invention, the present application also provides another endoscope handle, the endoscope handle comprising:

[0026] A shell having a cavity disposed therein;

[0027] A lens assembly, wherein the lens assembly is disposed in the cavity and comprises a zoom lens group and / or a focusing lens group sequentially disposed along the same optical axis, and the zoom lens group and / or the focusing lens group can reciprocate along the optical axis;

[0028] The adjusting assembly includes a zoom adjusting portion and / or a focus adjusting portion. The zoom adjusting portion and / or the focus adjusting portion are both rotatably arranged on the housing and are used to adjust the reciprocating movement of the lens assembly along the optical axis.

[0029] Furthermore, the endoscope handle further comprises:

[0030] A driving assembly, the driving assembly is disposed in the cavity and connected to the focusing lens group and the zoom lens group to drive at least one of the focusing lens group and the zoom lens group to move along the optical axis;

[0031] A control unit, the control unit includes an operation module, a control module and a detection module, the operation module and the detection module are both communicatively connected to the control module, the operation module is used to transmit control instructions to the control module, the detection module is used to detect the rotation amount of the zoom adjustment part and the focus adjustment part and transmit a detection signal to the control module, and the control module controls the driving component according to at least one of the control instruction and the detection signal.

[0032] Furthermore, the adjustment component includes an adjustment ring, and the adjustment ring is provided with a plurality of adjustment teeth arranged at intervals along the circumferential direction of the adjustment ring. The adjustment ring is rotatably arranged on the shell around its own axis, and the axis and / or periphery of the adjustment ring is provided with a rotation detection structure for detecting the rotation angle and / or step length of the adjustment ring.

[0033] Furthermore, the endoscope handle comprises: a control unit,

[0034] The control unit includes a first light-emitting unit and a first light-receiving unit, wherein the first light-emitting unit and the first light-receiving unit are spaced apart on opposite sides of the adjusting tooth along the thickness direction of the adjusting tooth, and the adjusting tooth rotates with the adjusting ring to block the light emitted from the first light-emitting unit to the first light-receiving unit.

[0035] According to another aspect of the present invention, the present application also provides another endoscope handle, the endoscope handle comprising:

[0036] A shell having a cavity disposed therein;

[0037] A lens assembly, wherein the lens assembly is disposed in the cavity and comprises a zoom lens group and a focusing lens group sequentially disposed along the same optical axis, and both the zoom lens group and the focusing lens group can reciprocate along the optical axis;

[0038] An adjustment component, the adjustment component comprising a zoom adjustment part and a focus adjustment part, and the zoom adjustment part and the focus adjustment part are both rotatably disposed on the housing;

[0039] A control unit, the control unit includes an operation module, a control module and a detection module, the operation module and the detection module are both communicatively connected to the control module, the operation module is used to transmit control instructions to the control module, the detection module is used to detect the rotation amount of the zoom adjustment part and the focus adjustment part and transmit a detection signal to the control module, and the control module controls the lens assembly according to at least one of the control instruction and the detection signal.

[0040] Furthermore, the endoscope handle comprises:

[0041] A driving assembly, the driving assembly is disposed in the cavity and connected to the focusing lens group and the zoom lens group to drive at least one of the focusing lens group and the zoom lens group to move along the optical axis;

[0042] The driving assembly includes: a first driving device and a second driving device; wherein, one of the first driving device and the second driving device is connected to the focusing lens group to drive the focusing lens group to move along the optical axis, and the other of the first driving device and the second driving device is connected to the zoom lens group to drive the zoom lens group to move along the optical axis.

[0043] Further, the adjustment assembly includes an adjustment ring, the housing includes a column, the adjustment ring is rotatably arranged on the housing around its own axis, and the adjustment ring is provided with a plurality of adjustment teeth arranged at intervals along the circumferential direction of the adjustment ring, and the spacing between two adjacent adjustment teeth is equal;

[0044] The zoom adjustment part and the focus adjustment part both further include an outer ring and an inner ring;

[0045] Among them, the inner ring is fixedly connected to the shell, the outer ring is sleeved on the outer circumference of the inner ring and can rotate around the axial direction of the inner ring itself, and the adjustment ring is arranged between the outer ring and the inner ring and is coaxially fixedly connected to the outer ring; the outer ring, the adjustment ring and the inner ring are all sleeved on the outer circumferential surface of the cylinder, and the axes of the outer ring, the adjustment ring and the inner ring coincide with the axis of the cylinder.

[0046] According to another aspect of the present invention, the present application also provides a method for controlling an endoscope, the method comprising:

[0047] Detecting a manual zoom or manual focus signal, wherein the manual zoom or manual focus signal is generated by the rotation of the adjustment component of the endoscope and is used to represent the rotation parameter of the adjustment component;

[0048] Analyze the rotation parameter from the manual zoom or manual focus signal;

[0049] A control signal is generated according to the rotation parameter to control the lens assembly of the endoscope to reciprocate along its optical axis.

[0050] Furthermore, the control method further includes:

[0051] Detecting auto zoom or auto focus signals;

[0052] The lens assembly of the endoscope is controlled to move back and forth along its optical axis according to the automatic zoom or automatic focus signal to achieve automatic zoom or automatic focus.

[0053] In the present invention, in actual operation, when the endoscope needs to be automatically zoomed or automatically focused, the operator can issue a zoom instruction or a focus instruction to the control module through the operation module, and then the control module analyzes the received zoom instruction or the focus instruction and transmits the corresponding control instruction to the driving component, thereby driving the driving component to perform a movement consistent with the control instruction. Under the drive of the driving component, at least one of the zoom lens group and the focusing lens group in the lens assembly can move along the optical axis, thereby realizing the automatic zoom or automatic focus of the endoscope. When the endoscope needs to be manually zoomed, the operator can rotate the zoom adjustment part, and at this time the detection module can detect the rotation amount of the zoom adjustment part and transmit the detection signal to the control module. Then the control module analyzes the received detection signal and transmits the control instruction to the driving component. After receiving the control instruction, the driving component can drive at least one of the zoom lens group and the focusing lens group to move along the optical axis, thereby realizing the manual zoom of the endoscope. Moreover, when the endoscope needs to be manually focused, the operator can rotate the focus adjustment part. At this time, the detection module can detect the rotation amount of the focus adjustment part and transmit the detection signal to the control module. Then the control module analyzes the received detection signal and transmits the control instruction to the drive component. After receiving the control instruction, the drive component can drive the focusing lens group to move along the optical axis, so as to realize the manual focusing of the endoscope. Under the action of manual zoom and manual focus, the operator can realize the manual focusing of the endoscope. It can be seen that the present application can realize automatic zoom and automatic focus of the endoscope as well as manual zoom and manual focus at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0055] Figure 1 A schematic diagram of an endoscope handle disclosed in an embodiment of the present invention;

[0056] Figure 2 A cross-sectional view of an endoscope handle disclosed in an embodiment of the present invention at a first viewing angle;

[0057] Figure 3 It is a schematic diagram of an endoscope handle disclosed in an embodiment of the present invention;

[0058] Figure 4 A schematic diagram of an adjustment ring and a detection module disclosed in a first embodiment of the present invention;

[0059] Figure 5 A schematic diagram of an adjustment ring and a detection module disclosed in a first embodiment of the present invention at a first viewing angle;

[0060] Figure 6 A schematic diagram of the adjustment ring and the detection module disclosed in the first embodiment of the present invention at a second viewing angle;

[0061] Figure 7 A schematic diagram of an adjustment ring and a detection module at a first viewing angle disclosed in a second embodiment of the present invention;

[0062] Figure 8 This is a schematic diagram of an adjustment ring and a rotation detection structure at a first viewing angle disclosed in a third embodiment of the present invention.

[0063] The above drawings include the following reference numerals:

[0064] 10. Shell; 11. Cavity; 20. Lens assembly; 21. Zoom lens group; 22. Focus lens group; 30. Drive assembly; 31. First drive device; 32. Second drive device; 40. Adjustment assembly; 41. Zoom adjustment unit; 411. Adjustment ring; 4111. Adjustment teeth; 4112. Axis; 412. Outer ring; 413. Inner ring; 42. Focus adjustment unit; 50. Control unit; 51. Operation module; 52. Control module; 53. Detection module; 531. Detection element; 532. Rotation detection structure; 531a. First detection element; 531b. First detection element; 5311. First light-emitting unit; 5312. First light-receiving unit; 60. Imaging element; 70. Image processing unit; 80. Optical axis. DETAILED DESCRIPTION

[0065] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0067] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0068] In order to solve the problem that an endoscope cannot realize automatic zoom and automatic focus as well as manual zoom and manual focus at the same time, an endoscope handle is provided according to an embodiment of the present application. The endoscope handle of the present application will be described in detail below in conjunction with the accompanying drawings.

[0069] See also Figures 1 to 6 As shown, according to a first embodiment of the present invention, an endoscope handle is provided. The endoscope handle includes a housing 10, a lens assembly 20, a driving assembly 30, an adjusting assembly 40 and a control unit 50.

[0070] The housing 10 is provided with a cavity 11. The lens assembly 20 is provided in the cavity 11, and the lens assembly 20 includes a zoom lens group 21 and a focus lens group 22 which are sequentially arranged along the same optical axis 80, and the zoom lens group 21 and the focus lens group 22 can both reciprocate along the optical axis 80. The driving assembly 30 is provided in the cavity 11 and connected with the focus lens group 22 and the zoom lens group 21 to drive at least one of the focus lens group 22 and the zoom lens group 21 to move along the optical axis 80. The adjusting assembly 40 includes a zoom adjusting portion 41 and a focus adjusting portion 42, and the zoom adjusting portion 41 and the focus adjusting portion 42 can both be rotatably arranged on the housing 10. The control unit 50 includes an operation module 51, a control module 52 and a detection module 53. The operation module 51 and the detection module 53 are both communicatively connected to the control module 52. The operation module 51 is used to transmit control instructions to the control module 52. The detection module 53 is used to detect the rotation amount of the zoom adjustment part 41 and the focus adjustment part 42 and transmit the detection signal to the control module 52. The control module 52 controls the driving component 30 according to at least one of the control instruction and the detection signal.

[0071] In the present application, the operator can manually zoom or manually focus the endoscope through the adjustment component 40, or automatically zoom or automatically focus the endoscope through the operation module 51, so that the problem that the endoscope cannot achieve automatic zoom and automatic focus as well as manual zoom and manual focus at the same time can be solved. In the actual working process, when it is necessary to automatically zoom or automatically focus the endoscope, the operator can issue the required zoom command or focusing command to the control module 52 through the operation module 51, and then the control module 52 analyzes the received zoom command or focusing command and transmits the corresponding control command to the drive component 30. After receiving the control command, the drive component 30 can perform a movement consistent with the control command. The power output end of the drive component 30 is connected to the lens component 20. Therefore, under the drive of the drive component 30, at least one of the zoom lens group 21 and the focusing lens group 22 in the lens component 20 can move along the optical axis 80, so that the automatic zoom or automatic focusing of the endoscope can be achieved. The operation module 51 may be in the form of a physical key or a non-physical key. The physical key may be in the form of, but not limited to, a toggle, a button, a slide, a roller, a knob, and a bridge type, etc. The non-physical key may be in the form of, but not limited to, a touch screen, a stereoscopic optical image, etc. When the endoscope needs to be manually focused, the operator may rotate the zoom adjustment unit 41. At this time, the detection module 53 may detect the amount of rotation of the zoom adjustment unit 41 and transmit a detection signal to the control module 52. Then, the control module 52 analyzes the received detection signal and transmits a control instruction to the drive assembly 30. After receiving the control instruction, the drive assembly 30 may drive at least one of the zoom lens group 21 and the focusing lens group 22 to move along the optical axis 80, thereby realizing the manual focusing of the endoscope. Moreover, when the endoscope needs to be manually focused, the operator may rotate the focusing adjustment unit 42. At this time, the detection module 53 may detect the amount of rotation of the focusing adjustment unit 42 and transmit a detection signal to the control module 52. Then the control module 52 analyzes the received detection signal and transmits a control instruction to the drive assembly 30. After receiving the control instruction, the drive assembly 30 can drive the focusing lens group 22 to move along the optical axis 80, so that the manual focusing of the endoscope can be realized. Under the action of manual zoom and manual focusing, the operator can realize the manual focusing of the endoscope.

[0072] That is to say, compared with the existing endoscope handle, the endoscope handle of the present application integrates the functions of automatic zoom and automatic focus as well as manual zoom and manual focus in the endoscope handle through a simple structural design, so that automatic zoom and automatic focus as well as manual zoom and manual focus of the endoscope can be achieved at the same time.

[0073] Further, see Figures 2 to 6As shown, the zoom adjustment unit 41 and the focus adjustment unit 42 both include an adjustment ring 411, the detection module 53 includes a detection element 531, and the detection element 531 includes a calculation module (not shown in the figure), a first light emitting unit 5311, and a first light receiving unit 5312 for receiving the light emitted by the first light emitting unit 5311. The adjustment ring 411 is rotatably arranged on the housing 10 around its own axis, and the adjustment ring 411 is provided with a plurality of adjustment teeth 4111 spaced apart along the circumferential direction of the adjustment ring 411, and the spacing between two adjacent adjustment teeth 4111 is equal. The first light-emitting portion 5311 and the first light-receiving portion 5312 are arranged at opposite sides of the adjusting tooth 4111 along the thickness direction of the adjusting tooth 4111, and the adjusting tooth 4111 rotates with the adjusting ring 411 to block the light emitted from the first light-emitting portion 5311 to the first light-receiving portion 5312. The computing module is communicatively connected with the first light-receiving portion 5312, and the computing module calculates the rotation amount of the adjusting ring 411 according to the number of light-blocking times of the adjusting tooth 4111 and transmits a detection signal to the control module 52.

[0074] Specifically, in the first embodiment of the present application (i.e. Figures 1 to 6 ), the thickness direction of the adjusting tooth 4111 is the radial direction of the adjusting ring 411. In actual operation, the operator rotates the adjusting ring 411 of the zoom adjusting portion 41 around the axial direction of the adjusting ring 411. Since the first light emitting portion 5311 and the first light receiving portion 5312 of the detecting element 531 are arranged at opposite sides of the adjusting tooth 4111 along the thickness direction of the adjusting tooth 4111, the adjusting teeth 4111 on the adjusting ring 411 can intermittently block the light emitted from the first light emitting portion 5311 to the first light receiving portion 5312 during the rotation of the adjusting ring 411. During this period, the calculating module can calculate the rotation amount of the adjusting ring 411 according to the number of light shielding times of the adjusting tooth 4111, and then transmit the detection signal corresponding to the rotation amount to the control module 52. Then, the control module 52 analyzes the received detection signal, generates a corresponding control instruction and transmits it to the driving component 30. After receiving the control instruction, the driving component 30 can drive at least one of the zoom lens group 21 and the focusing lens group 22 to move along the optical axis 80, thereby realizing the manual focusing of the endoscope. Similarly, when the operator rotates the adjustment ring 411 of the focus adjustment part 42 around the axial direction of the adjustment ring 411, the manual focusing of the endoscope can be realized, thereby realizing the manual zoom and manual focusing of the endoscope.

[0075] For example, in the present application, in order to ensure that the operator can always see a clear picture when the endoscope is automatically zoomed or manually zoomed, the present application can adopt a method in which the focusing lens group 22 follows the zoom lens group 21 during automatic zooming or manual zooming. Figures 1 to 6) and the second embodiment (ie Figure 1 , Figure 3 as well as Figure 7 ) all show that the focusing lens group 22 follows the movement of the zoom lens group 21 when the zoom lens group 21 moves. In other embodiments of the present application, when the operator performs automatic zooming on the endoscope through the operating module 51 or performs manual zooming on the endoscope through the zoom adjustment unit 41, the focusing lens group 22 may not follow the movement of the zoom lens group 21, but after the automatic zooming is completed, the operator performs automatic focusing through the operating module 51 or manual focusing through the focus adjustment unit 42 to make the image of the endoscope clear.

[0076] Further, see Figures 2 to 6 As shown, the detection element 531 includes at least two, and the at least two detection elements 531 are spaced apart along the circumferential direction of the adjustment ring 411. The control module 52 controls the driving assembly 30 according to the shading sequence of the at least two detection elements 531 by the adjustment teeth 4111 to drive at least one of the focusing lens group 22 and the zoom lens group 21 to move along the optical axis 80 in a first direction or in a second direction opposite to the first direction.

[0077] Specifically, the first direction is Figure 2 The direction indicated by a in the second direction is Figure 2 In the present application, the zoom adjustment unit 41 and the focus adjustment unit 42 each include at least two detection elements 531. Figures 1 to 6 ) and the second embodiment (ie Figure 1 , Figure 3 as well as Figure 7 ) both show that the zoom adjustment unit 41 and the focus adjustment unit 42 both include two detection elements 531. When the endoscope handle of the present application is actually manufactured, the order in which the two detection elements 531 are shielded by the adjustment teeth 4111 can be reasonably adjusted according to actual needs to drive at least one of the focusing lens group 22 and the zoom lens group 21 to move along the optical axis 80 (the first direction and the second direction). Taking the focus adjustment unit 42 of the present application as an example, the first embodiment and the second embodiment of the present application both show that the adjustment ring 411 moves in the clockwise direction (i.e., Figure 5 Medium c and Figure 7The first detection element 531 and the second detection element 531 of the embodiment of the present invention are the first detection element 531a and the second detection element 531b respectively. When the operator rotates the adjustment ring 411 in the clockwise direction, the adjustment tooth 4111 first blocks the light of the first detection element 531a, and then blocks the light of the second detection element 531b. At this time, the driving component 30 can drive the focusing lens group 22 to move in the first direction or the second direction. Similarly, when the operator rotates the adjustment ring 411 in the counterclockwise direction (i.e. Figure 5 Medium D and Figure 7 When the adjusting ring 411 is rotated in the direction indicated by f in the middle), the adjusting teeth 4111 first block the light of the second detection element 531b, and then block the light of the first detection element 531a. At this time, the driving assembly 30 can drive the focusing lens group 22 to move in the first direction or the second direction. The first embodiment and the second embodiment of the present application both show the situation that the adjusting ring 411 controls the focusing lens group 22 to move in the first direction when it is rotated in the clockwise direction, and controls the focusing lens group 22 to move in the second direction when it is rotated in the counterclockwise direction.

[0078] Further, see Figures 4 to 7 As shown, along the circumferential direction of the optical axis 80, two adjacent detection elements 531 are arranged at an interval of D degrees, and two adjacent adjustment teeth 4111 are arranged at an interval of P degrees, and D and P satisfy the relationship: Wherein, N is a positive integer.

[0079] Specifically, the first embodiment and the second embodiment of the present application both show the case where N is 1. In the first embodiment and the second embodiment of the present application, when the operator moves in a clockwise direction (i.e. Figure 5 Medium c and Figure 7 When the adjusting ring 411 is rotated (in the direction indicated by e in the figure), the adjusting tooth 4111 first blocks the light of the first detecting element 531a, and then passes through After the rotation amount of 400 degrees, the light of the second detection element 531b is blocked by the adjustment tooth 4111. During this period, the calculation module (not shown in the figure) can calculate the rotation amount of the adjustment ring 411 according to the number of times the adjustment tooth 4111 blocks the light of the detection element 531, and then the calculation module can transmit the detection signal corresponding to the rotation amount to the control module 52. After receiving the corresponding detection signal, the control module 52 can analyze the detection signal, and then generate a corresponding control instruction and transmit it to the driving component 30 corresponding to the zoom adjustment part 41 and the focus adjustment part 42. After receiving the corresponding control instruction, the driving component 30 can drive the zoom lens group 21 or the focusing lens group 22 along the first direction ( Figure 2Similarly, when the operator moves in the counterclockwise direction (i.e., the direction indicated by a in the figure), the endoscope can be manually zoomed or focused. Figure 5 Medium D and Figure 7 When the adjusting ring 411 is rotated (in the direction indicated by f in the figure), the driving assembly 30 can drive the zoom lens group 21 or the focusing lens group 22 to move along the second direction (in the direction indicated by f) of the optical axis 80 through the principle similar to the above process. Figure 2 In the present application, D and P satisfy the relationship: Among them, when N is a positive integer, no matter the adjustment ring 411 rotates in the clockwise direction or the counterclockwise direction, the adjustment tooth 4111 cannot simultaneously block the first detection element 531a and the second detection element 531b. In this way, it is convenient for the detection element 531 to count the number of times the adjustment tooth 4111 blocks light, and then it is more convenient to adjust the movement amount of the zoom lens group 21 and the focusing lens group 22 along the optical axis 80 according to the rotation amount of the adjustment ring 411.

[0080] Further, see Figure 2 As shown, the zoom adjustment part 41 and the focus adjustment part 42 also include an outer ring 412 and an inner ring 413. The inner ring 413 is fixedly connected to the housing 10, the outer ring 412 is sleeved on the outer circumference of the inner ring 413 and can rotate around the axis direction of the inner ring 413 itself, and the adjustment ring 411 is arranged between the outer ring 412 and the inner ring 413 and is coaxially fixedly connected to the outer ring 412.

[0081] Specifically, during actual operation, the operator can drive the adjustment ring 411 of the zoom adjustment part 41 to rotate around the axis of the adjustment ring 411 by rotating the outer ring 412 of the zoom adjustment part 41, so as to drive the adjustment teeth 4111 of the adjustment ring 411 to block the light of the detection element 531 of the zoom adjustment part 41. During this period, the calculation module (not shown in the figure) can calculate the rotation amount of the adjustment ring 411 of the zoom adjustment part 41 according to the number of light blocking times of the adjustment teeth 4111, and then the calculation module converts the calculated rotation amount into a detection signal and transmits it to the control module 52. After receiving the detection signal, the control module 52 analyzes and generates a corresponding control instruction, and then the control module 52 transmits the generated control instruction to the driving assembly 30 corresponding to the zoom adjustment part 41, thereby driving the driving assembly 30 to work, and then driving at least one of the zoom lens group 21 and the focus adjustment part 42 to move along the optical axis 80. Similarly, the operator can drive the focusing lens group 22 to move along the optical axis 80 by rotating the outer ring 412 of the focus adjustment part 42 according to the above principle. During this period, the zoom lens group 21 does not move with the focusing lens group 22 .

[0082] Further, see Figure 1 and Figure 2 As shown, the housing 10 includes a cylinder, and the outer ring 412, the adjustment ring 411 and the inner ring 413 are all sleeved on the outer circumference of the cylinder, and the axes of the outer ring 412, the adjustment ring 411 and the inner ring 413 coincide with the axis of the cylinder.

[0083] Exemplarily, in the first and second embodiments of the present application, the shell 10 is configured to be cylindrical. In other embodiments of the present application, the shell 10 may also be a cube or a rectangular parallelepiped or other structures. The reason why the shell 10 is configured to be cylindrical in the first and second embodiments of the present application is that the cylindrical design is more convenient for the installation of the outer ring 412, the adjustment ring 411, and the inner ring 413. If the shell 10 is a cube or a rectangular parallelepiped or other structures, it is necessary to set additional installation positions for the outer ring 412, the adjustment ring 411, and the inner ring 413. This will not only make the size of the endoscope handle of the present application too large, but also make the manufacturing process of the endoscope handle complicated, thereby increasing the production cost, which is not conducive to the manufacture of the endoscope handle. Therefore, the cylindrical design can not only make the endoscope handle more compact and save space, but also save costs to a certain extent. In the present application Figure 2 In the figure, only the zoom adjustment unit 41 is shown to be installed on the housing 10. As for the installation of the focus adjustment unit 42, it can be reasonably adjusted according to actual needs during manufacturing. The position close to the zoom adjustment unit 41 can be installed in a manner similar to the zoom adjustment unit 41, or the position far from the zoom adjustment unit 41 can be installed in a manner similar to the zoom adjustment unit 41.

[0084] Further, see Figure 1 and Figure 2 As shown, the adjusting teeth 4111 are protrudingly provided on the inner side surface or the outer side surface of the adjusting ring 411 ; or, the adjusting teeth 4111 are protrudingly provided on the end surface of the adjusting ring 411 in the axial direction.

[0085] For example, the first embodiment of the present application (i.e. Figures 1 to 6 ) shows that the adjustment teeth 4111 are protruding from the end surface of the adjustment ring 411 in the axial direction and the adjustment teeth 4111 are arranged along the first direction ( Figure 2 In other embodiments of the present application, the adjusting teeth 4111 may also extend along the second direction (in the direction indicated by a) of the optical axis 80. Figure 2When the adjusting teeth 4111 are protruding from the end face of the adjusting ring 411 in the axial direction and the adjusting teeth 4111 extend along the optical axis 80, the radial dimension of the endoscope handle can be reduced to a certain extent, saving space. At the same time, compared with the manner in which the adjusting teeth 4111 are protruding from the inner side surface or the outer side surface of the adjusting ring 411, the manner in which the adjusting teeth 4111 are protruding from the end face of the adjusting ring 411 in the axial direction and the adjusting teeth 4111 extend along the optical axis 80 has a simpler manufacturing process and can save production costs to a certain extent. Therefore, under normal circumstances, the present application generally adopts the manner in which the adjusting teeth 4111 are protruding from the end face of the adjusting ring 411 in the axial direction and the adjusting teeth 4111 extend along the optical axis 80. The second embodiment of the present application (i.e. Figure 1 , Figure 3 as well as Figure 7 ) shows that the adjustment teeth 4111 are protruding from the inner side surface of the adjustment ring 411 and the adjustment teeth 4111 extend along the center direction of the adjustment ring 411. In other embodiments of the present application, the adjustment teeth 4111 may also be protruding from the inner side surface of the adjustment ring 411, and the extension direction of the adjustment teeth 4111 may also be reasonably adjusted according to actual needs. The adjustment teeth 4111 may also be protruding from the outer side surface of the adjustment ring 411, and the extension direction of the adjustment teeth 4111 may also be reasonably adjusted according to actual needs. The present application does not make specific restrictions on the specific structure of the adjustment ring 411 and the adjustment teeth 4111. As for the reasonable adjustments made based on the present application according to actual needs, they are all within the scope of protection required by the present application.

[0086] Further, see Figure 2 and Figure 3 As shown, the driving assembly 30 includes a first driving device 31 and a second driving device 32. One of the first driving device 31 and the second driving device 32 is connected to the focusing lens group 22 to drive the focusing lens group 22 to move along the optical axis 80, and the other of the first driving device 31 and the second driving device 32 is connected to the zoom lens group 21 to drive the zoom lens group 21 to move along the optical axis 80.

[0087] Specifically, in the present application, the first driving device 31 can be used to drive the zoom lens group 21 and the second driving device 32 can be used to drive the focusing lens group 22, or the first driving device 31 can be used to drive the focusing lens group 22 and the second driving device 32 can be used to drive the zoom lens group 21. The first and second embodiments of the present application both show the situation that the first driving device 31 drives the zoom lens group 21 and the second driving device 32 drives the focusing lens group 22. In actual operation, the operator can control the first driving device 31 to drive the zoom lens group 21 to move along the optical axis 80 by rotating the outer ring 412 of the zoom adjustment part 41. If the focusing lens group 22 is linked with the zoom lens group 21, the operator can control the first driving device 31 to drive the zoom lens group 21 to move along the optical axis 80 and control the second driving device 32 to drive the focusing lens group 22 to move along the optical axis 80 by rotating the outer ring 412 of the zoom adjustment part 41, thereby realizing manual zooming of the endoscope. Furthermore, the operator can control the second drive device 32 to drive the zoom lens group 21 to move along the optical axis 80 by rotating the outer ring 412 of the focus adjustment part 42, thereby realizing manual focusing of the endoscope. In addition, the first drive device 31 and the second drive device 32 of the present application can be motors, and the first embodiment and the second embodiment of the present application both show the case where the first drive device 31 and the second drive device 32 are both linear motors. The use of linear motors can reduce the radial size of the endoscope handle to a certain extent and save space. It can also reduce the use of an intermediate mechanism to transmit the power of the motor to the zoom lens group 21 and the focusing lens group 22, thereby reducing the energy loss of the first drive device 31 and the second drive device 32, and thus can save costs to a certain extent.

[0088] Further, see Figure 2 and Figure 3 As shown, the endoscope handle further includes an imaging element 60 and an image processing unit 70. The imaging element 60 and the image processing unit 70 are both disposed in the cavity 11, the imaging element 60 is located on the image side of the lens assembly 20, and the image processing unit 70 and the imaging element 60 are both communicatively connected to the control module 52.

[0089] Specifically, during actual operation, the imaging element 60 can convert the light transmitted back by the focusing lens group 22 and the zoom lens group 21 into an image signal and transmit it to the image processing unit 70, and then the image processing unit 70 processes the received image signal and transmits it to the control module 52, and then the control module 52 processes the received image signal and transmits it to a display screen (not shown in the figure) or other display (not shown in the figure) for display, so that the image observed by the endoscope can be presented in the field of vision of the operator. In addition, when the imaging element 60 receives the light transmitted back from the focusing lens group 22 and the zoom lens group 21, the imaging element 60 can transmit a signal to the image processing unit 70, and then the image processing unit 70 processes the received signal and transmits it to the control module 52, and then the control module 52 processes the received image signal. When the control module 52 finds that the parameters such as white balance of the image transmitted back by the image processing unit 70 do not meet the requirements, the control module 52 can issue corresponding control instructions to the image processing unit 70, and then the image processing unit 70 processes the control instructions issued by the control module 52 and transmits them to the imaging element 60. The imaging element 60 adjusts the parameters such as white balance according to the received control instructions, so that the parameters such as white balance of the image observed by the endoscope meet the requirements, which is convenient for the operator to observe.

[0090] Furthermore, the present application also mentions an endoscope, which includes the above-mentioned endoscope handle. Specifically, by installing the endoscope handle of the present application into the endoscope, the endoscope's automatic zoom and automatic focus as well as manual zoom and manual focus operations can be performed simultaneously, thereby making the image observed by the endoscope clearer. At the same time, when an operator uses an endoscope equipped with the endoscope handle of the present application, automatic zoom and automatic focus as well as manual zoom and manual focus operations can be performed through the operating module 51, zoom adjustment unit 41 and focus adjustment unit 42 on the endoscope handle, helping the operator to quickly lock the part to be observed, and clearly present the image of the part to be observed in the operator's field of view.

[0091] See also Figures 1 to 3 , Figure 8 As shown, according to the third embodiment of the present invention, another endoscope handle is provided. For the sake of distinction, the endoscope handle mentioned in the third embodiment will be represented by the second endoscope handle below. The second endoscope handle includes a shell 10, a lens assembly 20 and an adjustment assembly 40.

[0092] The housing 10 is provided with a cavity 11. The lens assembly 20 is provided in the cavity 11, and the lens assembly 20 includes a zoom lens group 21 and / or a focus lens group 22 sequentially arranged along the same optical axis 80, and the zoom lens group 21 and / or the focus lens group 22 can reciprocate along the optical axis 80. The adjustment assembly 40 includes a zoom adjustment part 41 and / or a focus adjustment part 42, and the zoom adjustment part 41 and / or the focus adjustment part 42 can be rotatably arranged on the housing 10, and used to adjust the lens assembly 20 to reciprocate along the optical axis 80.

[0093] In the second type of endoscope handle, the operator can manually zoom or manually focus the endoscope through the adjustment component 40. In the actual working process, when the endoscope needs to be manually zoomed, the operator can rotate the zoom adjustment part 41 relative to the housing 10, so as to adjust at least one of the zoom lens group 21 and the focusing lens group 22 to move back and forth along the optical axis 80, thereby realizing manual zooming of the endoscope. Moreover, when the endoscope needs to be manually focused, the operator can rotate the focusing adjustment part 42 relative to the housing 10, so as to drive the focusing lens group 22 to move back and forth along the optical axis 80, thereby realizing manual focusing of the endoscope. Under the action of manual zooming and manual focusing, the operator can realize manual focusing of the endoscope.

[0094] In addition, in order to ensure that the image observed by the endoscope can always remain clear during the manual zooming process, the focusing lens group 22 can be set in the present application to move with the zoom lens group 21, so as to ensure that the image observed by the endoscope can always remain clear. Of course, the zoom adjustment unit 41 can also be used to independently adjust the zoom lens group 21 to move back and forth along the optical axis 80, and the focusing adjustment unit 42 can be used to independently adjust the focusing lens group 22 to move back and forth along the optical axis 80.

[0095] Further, see Figure 2 and Figure 3 As shown, the second endoscope handle also includes a driving assembly 30 and a control unit 50. The driving assembly 30 is disposed in the cavity 11 and connected to the focusing lens group 22 and the zoom lens group 21 to drive at least one of the focusing lens group 22 and the zoom lens group 21 to move along the optical axis 80. The control unit 50 includes an operation module 51, a control module 52, and a detection module 53. The operation module 51 and the detection module 53 are both communicatively connected to the control module 52. The operation module 51 is used to transmit a control instruction to the control module 52. The detection module 53 is used to detect the rotation amount of the zoom adjustment part 41 and the focus adjustment part 42 and transmit a detection signal to the control module 52. The control module 52 controls the driving assembly 30 according to at least one of the control instruction and the detection signal.

[0096] Specifically, when using the second endoscope handle, the operator can manually zoom or manually focus the endoscope through the adjustment component 40, or automatically zoom or automatically focus the endoscope through the operation module 51, so that the problem that the endoscope cannot achieve automatic zoom and automatic focus as well as manual zoom and manual focus at the same time can be solved. In the actual working process, when it is necessary to automatically zoom or automatically focus the endoscope, the operator can issue the required zoom command or focusing command to the control module 52 through the operation module 51, and then the control module 52 analyzes the received zoom command or focusing command and transmits the corresponding control command to the drive component 30, and the drive component 30 can perform the movement consistent with the control command after receiving the control command. The power output end of the drive component 30 is connected to the lens component 20, so under the drive of the drive component 30, at least one of the zoom lens group 21 and the focusing lens group 22 in the lens component 20 can move along the optical axis 80, so that the automatic zoom or automatic focusing of the endoscope can be achieved. The operation module 51 may be in the form of a physical key or a non-physical key. The physical key may be in the form of, but not limited to, a toggle, a button, a slide, a roller, a knob, and a bridge type, etc. The non-physical key may be in the form of, but not limited to, a touch screen, a stereoscopic optical image, etc. When the endoscope needs to be manually focused, the operator may rotate the zoom adjustment unit 41. At this time, the detection module 53 may detect the amount of rotation of the zoom adjustment unit 41 and transmit a detection signal to the control module 52. Then, the control module 52 analyzes the received detection signal and transmits a control instruction to the drive assembly 30. After receiving the control instruction, the drive assembly 30 may drive at least one of the zoom lens group 21 and the focusing lens group 22 to move along the optical axis 80, thereby realizing the manual focusing of the endoscope. Moreover, when the endoscope needs to be manually focused, the operator may rotate the focusing adjustment unit 42. At this time, the detection module 53 may detect the amount of rotation of the focusing adjustment unit 42 and transmit a detection signal to the control module 52. Then the control module 52 analyzes the received detection signal and transmits a control instruction to the drive assembly 30. After receiving the control instruction, the drive assembly 30 can drive the focusing lens group 22 to move along the optical axis 80, so that the manual focusing of the endoscope can be realized. Under the action of manual zoom and manual focusing, the operator can realize the manual focusing of the endoscope.

[0097] That is to say, compared with the existing endoscope handle, the second endoscope handle of the present application integrates the functions of automatic zoom and automatic focus as well as manual zoom and manual focus in the endoscope handle through a simple structural design, so that automatic zoom and automatic focus as well as manual zoom and manual focus of the endoscope can be achieved at the same time.

[0098] Further, see Figure 2 , Figure 3as well as Figure 8 As shown, the adjustment assembly 40 includes an adjustment ring 411, and the adjustment ring 411 is provided with a plurality of adjustment teeth 4111 arranged at intervals along the circumferential direction of the adjustment ring 411. The adjustment ring 411 is rotatably arranged on the shell 10 around its own axis, and the axis 4112 and / or the periphery of the adjustment ring 411 is provided with a rotation detection structure 532 for detecting the rotation angle and / or step length of the adjustment ring.

[0099] For example, in the second endoscope handle, the rotation detection structure 532 may be provided at the axis of the adjustment ring 411, or may be provided at the periphery of the adjustment ring 411. Figures 1 to 3 , Figure 8 4 shows a case where a rotation detection structure 532 is provided at the axis of the adjustment ring 411. The rotation detection structure 532 may be, for example, a tilt sensor, a laser detection device, an optical encoder, etc. When the endoscope handle is actually used, the operator rotates the endoscope handle in a clockwise direction (i.e., in a clockwise direction) relative to the housing 10. Figure 8 g in the direction of the clockwise direction) or counterclockwise (i.e. Figure 8 When the adjusting ring 411 is rotated around its own axis (in the direction indicated by h), the rotation detection structure located at the axis 4112 can detect the rotation angle and / or step length of the adjusting ring 411, and then can adjust at least one of the zoom lens group 21 and the focusing lens group 22 to move along the optical axis 80.

[0100] Further, see Figures 1 to 3 , Figure 5 as well as Figure 8 As shown, the control unit 50 of the second endoscope handle also includes a first light-emitting portion 5311 and a first light-receiving portion 5312, wherein the first light-emitting portion 5311 and the first light-receiving portion 5312 are spaced apart on opposite sides of the adjusting tooth 4111 along the thickness direction of the adjusting tooth 4111, and the adjusting tooth 4111 rotates with the adjusting ring 411 to block the light emitted from the first light-emitting portion 5311 to the first light-receiving portion 5312.

[0101] Specifically, in actual operation, the operator rotates the adjustment ring 411 of the zoom adjustment part 41 around the axial direction of the adjustment ring 411. Since the first light emitting part 5311 and the first light receiving part 5312 of the control unit 50 are arranged at opposite sides of the adjustment tooth 4111 along the thickness direction of the adjustment tooth 4111, the adjustment teeth 4111 on the adjustment ring 411 can intermittently block the light emitted from the first light emitting part 5311 to the first light receiving part 5312 during the rotation of the adjustment ring 411. During this period, the rotation angle and / or step length of the adjustment ring detected by the rotation detection structure 532 can be adjusted to reciprocate at least one of the zoom lens group 21 and the focusing lens group 22 along the optical axis 80, thereby realizing manual zooming of the endoscope. Similarly, when the operator rotates the adjustment ring 411 of the focus adjustment part 42 around the axial direction of the adjustment ring 411, the focusing lens group 22 can be adjusted to reciprocate along the optical axis 80, thereby realizing manual focusing of the endoscope.

[0102] For example, in the present application, in order to ensure that the operator can always see a clear picture when the endoscope is automatically zoomed or manually zoomed, the present application can adopt a method in which the focusing lens group 22 follows the zoom lens group 21 during automatic zooming or manual zooming. Figures 1 to 6 As shown), the second embodiment (ie Figure 1 , Figure 3 as well as Figure 7 As shown) and the third embodiment (as shown Figures 1 to 3 , Figure 8 ) show that the focusing lens group 22 follows the movement of the zoom lens group 21 when the zoom lens group 21 moves. In other embodiments of the present application, when the operator performs automatic zooming on the endoscope through the operating module 51 or performs manual zooming on the endoscope through the zoom adjustment unit 41, the focusing lens group 22 may not follow the movement of the zoom lens group 21, but after the automatic zooming is completed, the operator performs automatic focusing through the operating module 51 or manual focusing through the focus adjustment unit 42 to make the image of the endoscope clear.

[0103] See also Figures 1 to 3 , Figure 5 As shown, according to the fourth embodiment of the present invention, another endoscope handle is provided. For the sake of distinction, the endoscope handle mentioned in the fourth embodiment will be represented by the third endoscope handle below. The third endoscope handle includes a shell 10, a lens assembly 20, an adjustment assembly 40 and a control unit 50.

[0104] The housing 10 is provided with a cavity 11. The lens assembly 20 is provided in the cavity 11, and the lens assembly 20 includes a zoom lens group 21 and a focus lens group 22 which are sequentially arranged along the same optical axis 80, and the zoom lens group 21 and the focus lens group 22 can both reciprocate along the optical axis 80. The adjustment assembly 40 includes a zoom adjustment part 41 and a focus adjustment part 42, and the zoom adjustment part 41 and the focus adjustment part 42 can both be rotatably arranged in the housing 10. The control unit 50 includes an operation module 51, a control module 52 and a detection module 53, and the operation module 51 and the detection module 53 are both communicatively connected with the control module 52, and the operation module 51 is used to transmit a control instruction to the control module 52, and the detection module 53 is used to detect the rotation amount of the zoom adjustment part 41 and the focus adjustment part 42 and transmit a detection signal to the control module 52, and the control module 52 controls the lens assembly 20 according to at least one of the control instruction and the detection signal.

[0105] In the third endoscope handle of the present application, the operator can manually zoom or focus the endoscope through the adjustment component 40, or automatically zoom or focus the endoscope through the operation module 51, so that the problem that the endoscope cannot achieve automatic zoom and automatic focus as well as manual zoom and manual focus at the same time can be solved. In the actual working process, when it is necessary to automatically zoom or automatically focus the endoscope, the operator can issue the required zoom command or focus command to the control module 52 through the operation module 51, and then the control module 52 analyzes the received zoom command or focus command and controls at least one of the zoom lens group 21 and the focusing lens group 22 in the lens assembly 20 to move back and forth along the optical axis 80, so that the automatic zoom or automatic focus of the endoscope can be achieved. The operation module 51 may be in the form of a physical key or a non-physical key. The physical key may be in the form of a toggle, a button, a slide, a roller, a knob, and a bridge type, etc. The non-physical key may be in the form of a touch screen, a stereoscopic optical image, etc. When the endoscope needs to be manually zoomed, the operator may rotate the zoom adjustment unit 41. At this time, the detection module 53 may detect the rotation amount of the zoom adjustment unit 41 and transmit the detection signal to the control module 52. Then the control module 52 analyzes the received detection signal and controls at least one of the zoom lens group 21 and the focusing lens group 22 in the lens assembly 20 to move back and forth along the optical axis 80, thereby realizing the manual zooming of the endoscope. Moreover, when the endoscope needs to be manually focused, the operator may rotate the focusing adjustment unit 42. At this time, the detection module 53 may detect the rotation amount of the focusing adjustment unit 42 and transmit the detection signal to the control module 52. Then the control module 52 analyzes the received detection signal and controls the focusing lens group 22 to move back and forth along the optical axis 80, thereby realizing the manual focusing of the endoscope. With the help of manual zoom and manual focus, the operator can manually adjust the focus of the endoscope.

[0106] That is to say, compared with the existing endoscope handles, the third endoscope handle of the present application integrates the functions of automatic zoom and automatic focus as well as manual zoom and manual focus into the endoscope handle through a simple structural design, so that automatic zoom and automatic focus as well as manual zoom and manual focus of the endoscope can be realized at the same time.

[0107] In addition, in order to ensure that the image observed by the endoscope can always remain clear during the manual zooming process, the focusing lens group 22 can be set in the present application to move with the zoom lens group 21, so as to ensure that the image observed by the endoscope can always remain clear. Of course, the zoom adjustment unit 41 can also be used to independently adjust the zoom lens group 21 to move back and forth along the optical axis 80, and the focusing adjustment unit 42 can be used to independently adjust the focusing lens group 22 to move back and forth along the optical axis 80.

[0108] Further, see Figure 2 and Figure 3 As shown, the endoscope handle also includes a driving assembly 30, which is disposed in the cavity 11 and connected to the focusing lens group 22 and the zoom lens group 21 to drive at least one of the focusing lens group 22 and the zoom lens group 21 to move along the optical axis 80. In addition, the driving assembly 30 includes a first driving device 31 and a second driving device 32. Among them, one of the first driving device 31 and the second driving device 32 is connected to the focusing lens group 22 to drive the focusing lens group 22 to move along the optical axis 80, and the other of the first driving device 31 and the second driving device 32 is connected to the zoom lens group 21 to drive the zoom lens group 21 to move along the optical axis 80.

[0109] Specifically, in the third endoscope handle of the present application, the first drive device 31 can be used to drive the zoom lens group 21 and the second drive device 32 can be used to drive the focusing lens group 22, or the first drive device 31 can be used to drive the focusing lens group 22 and the second drive device 32 can be used to drive the zoom lens group 21. The first, second, third and fourth embodiments of the present application all show the situation where the first drive device 31 drives the zoom lens group 21 and the second drive device 32 drives the focusing lens group 22. When the third endoscope handle is actually used, the operator can control the first drive device 31 to drive the zoom lens group 21 to move along the optical axis 80 by rotating the outer ring 412 of the zoom adjustment part 41. If the focusing lens group 22 is linked with the zoom lens group 21, the operator can control the first drive device 31 to drive the zoom lens group 21 to move along the optical axis 80 and control the second drive device 32 to drive the focusing lens group 22 to move along the optical axis 80 by rotating the outer ring 412 of the zoom adjustment part 41, thereby realizing manual zooming of the endoscope. Furthermore, the operator can control the second drive device 32 to drive the zoom lens group 21 to move along the optical axis 80 by rotating the outer ring 412 of the focus adjustment part 42, thereby realizing manual focusing of the endoscope. In addition, the first drive device 31 and the second drive device 32 of the present application can be motors, and the first embodiment, the second embodiment and the third embodiment of the present application all show the case where the first drive device 31 and the second drive device 32 are both linear motors. The use of linear motors can reduce the radial size of the endoscope handle to a certain extent and save space. It can also reduce the use of an intermediate mechanism to transmit the power of the motor to the zoom lens group 21 and the focusing lens group 22, thereby reducing the energy loss of the first drive device 31 and the second drive device 32, and thus can save costs to a certain extent.

[0110] Further, see Figure 2 , Figures 4 to 8 As shown, the adjustment assembly 40 includes an adjustment ring 411, the housing 10 includes a column, the adjustment ring 411 is rotatably arranged on the housing 10 around its own axis, and the adjustment ring 411 is provided with a plurality of adjustment teeth 4111 arranged at intervals along the circumferential direction of the adjustment ring 411, and the spacing between two adjacent adjustment teeth 4111 is equal. The zoom adjustment part 41 and the focus adjustment part 42 also include an outer ring 412 and an inner ring 413. Among them, the inner ring 413 is fixedly connected to the housing 10, the outer ring 412 is sleeved on the outer circumference of the inner ring 413 and can rotate around the axis direction of the inner ring 413 itself, and the adjustment ring 411 is arranged between the outer ring 412 and the inner ring 413 and is coaxially fixedly connected with the outer ring 412; the outer ring 412, the adjustment ring 411 and the inner ring 413 are all sleeved on the outer circumferential surface of the column, and the axes of the outer ring 412, the adjustment ring 411 and the inner ring 413 coincide with the axis of the column.

[0111] Specifically, the arrangement of the adjustment teeth 4111 of the third endoscope handle on the adjustment ring 411 is the same as the arrangement of the endoscope handle shown in the second embodiment. In actual operation, the operator can drive the adjustment ring 411 of the zoom adjustment part 41 to rotate around the axis of the adjustment ring 411 itself by rotating the outer ring 412 of the zoom adjustment part 41, thereby driving the adjustment teeth 4111 of the adjustment ring 411 to block the light of the detection element 531 of the zoom adjustment part 41. During this period, the calculation module (not shown in the figure) can calculate the rotation amount of the adjustment ring 411 of the zoom adjustment part 41 according to the number of light blocking times of the adjustment teeth 4111, and then the calculation module converts the calculated rotation amount into a detection signal and transmits it to the control module 52. After receiving the detection signal, the control module 52 analyzes and generates corresponding control instructions, and then transmits the generated control instructions to the driving assembly 30 corresponding to the zoom adjustment part 41, thereby driving the driving assembly 30 to work, and then driving at least one of the zoom lens group 21 and the focus adjustment part 42 to reciprocate along the optical axis 80. Similarly, the operator can drive the focus lens group 22 to reciprocate along the optical axis 80 by rotating the outer ring 412 of the focus adjustment part 42 as in the above principle, during which the zoom lens group 21 does not move with the focus lens group 22.

[0112] Exemplarily, in the first, second, third and fourth embodiments of the present application, the shell 10 is configured as a column. In other embodiments of the present application, the shell 10 may also be a cube or a cuboid. The reason why the shell 10 is configured as a column in the first, second, third and fourth embodiments of the present application is that the cylindrical design is more convenient for the installation of the outer ring 412, the adjustment ring 411 and the inner ring 413. If the shell 10 is a cube or a cuboid, it is necessary to set additional installation positions for the outer ring 412, the adjustment ring 411 and the inner ring 413. This will not only make the endoscope handle of the present application too large, but also make the manufacturing process of the endoscope handle complicated, thereby increasing the production cost and being not conducive to the manufacture of the endoscope handle. Therefore, the cylindrical design can not only make the endoscope handle more compact and save space, but also save costs to a certain extent. Figure 2 In the figure, only the zoom adjustment unit 41 is shown to be installed on the housing 10. As for the installation of the focus adjustment unit 42, it can be reasonably adjusted according to actual needs during manufacturing. The position close to the zoom adjustment unit 41 can be installed in a manner similar to the zoom adjustment unit 41, or the position far from the zoom adjustment unit 41 can be installed in a manner similar to the zoom adjustment unit 41.

[0113] On the other hand, the present application also mentions a control method for an endoscope, the control method comprising detecting a manual zoom or manual focus signal, the manual zoom or manual focus signal is generated by the rotation of the adjustment component 40 of the endoscope, and is used to indicate the rotation parameter of the adjustment component 40. The rotation parameter is parsed from the manual zoom or manual focus signal. A control signal is generated according to the rotation parameter to control the lens assembly 20 of the endoscope to reciprocate along its optical axis 80.

[0114] Specifically, when the operator rotates the adjustment ring 411 of the zoom adjustment part 41, the detection module 53 of the endoscope handle can generate a corresponding manual zoom signal according to the rotation parameters of the adjustment ring 411 during the rotation process, and then the detection module 53 transmits the manual zoom signal to the control module 52. The control module 52 analyzes the received manual zoom signal, and then controls at least one of the zoom lens group 21 and the focusing lens group 22 in the lens assembly 20 to move back and forth along the optical axis 80, so that the manual zoom of the endoscope can be achieved. In addition, when the operator rotates the adjustment ring 411 of the focus adjustment part 42, the detection module 53 of the endoscope handle can generate a corresponding manual focus signal according to the rotation parameters of the adjustment ring 411 during the rotation process, and then the detection module 53 transmits the manual focus signal to the control module 52. The control module 52 analyzes the received manual focus signal, and then controls the focusing lens group 22 in the lens assembly 20 to move back and forth along the optical axis 80, so that the manual focus of the endoscope can be achieved.

[0115] Furthermore, the endoscope control method further includes detecting an automatic zoom or automatic focus signal, and controlling the lens assembly 20 of the endoscope to reciprocate along its optical axis 80 according to the automatic zoom or automatic focus signal to achieve automatic zoom or automatic focus.

[0116] Specifically, the operator can control the endoscope to perform automatic zoom or automatic focus through the operation module 51. The operation module 51 can be in the form of a physical button or a non-physical button. The physical button includes, but is not limited to, a toggle, a button, a slide, a roller, a knob, and a bridge, etc. The non-physical button includes, but is not limited to, a touch screen, a stereoscopic optical image, etc. When it is necessary to control the endoscope to perform automatic zoom, the operator can issue the required zoom command to the control module 52 through the operation module 51, and then the control module 52 will parse the received zoom command and generate an automatic zoom signal. Then the drive component 40 controls at least one of the zoom lens group 21 and the focusing lens group 22 to move back and forth along the optical axis 80 according to the automatic zoom signal, thereby realizing the automatic zoom of the endoscope. When it is necessary to control the endoscope to perform automatic focusing, the operator can give the required focusing instructions to the control module 52 through the operating module 51, and then the control module 52 will parse the received focusing instructions and generate an automatic focusing signal. Subsequently, the driving component 40 controls the focusing lens group 22 to move back and forth along the optical axis 80 according to the automatic focusing signal, thereby realizing automatic focusing of the endoscope.

[0117] It can be known from the above statements that the present application can solve the problem that the endoscope cannot realize automatic zoom and automatic focus and manual zoom and manual focus at the same time by setting an endoscope handle composed of a housing 10, a lens assembly 20, a drive assembly 30, an adjustment assembly 40, a control unit 50, an imaging element 60 and an image processing unit 70. In actual use, the operator can realize the automatic zoom and automatic focus functions of the endoscope through the operating module 51 integrated on the endoscope handle housing 10. When the operator performs the automatic zoom and automatic focus tasks through the operating module 51, the control module 52 receives the control instruction from the operating module 51, thereby controlling the first drive device 31 and the second drive device 32 to drive the zoom lens group 21 and the focusing lens group 22 to move to the target position along the optical axis 80. In the process of the zoom lens group 21 moving, the focusing lens group 22 can move with the zoom lens group 21, so as to ensure that the image in the zooming process is always in a clear state. When the operator believes that the clarity of the image obtained by automatic zoom and automatic focus does not meet the requirements, or believes that the image obtained by automatic zoom and automatic focus is not the specific position that needs to be viewed. The operator can control the first drive device 31 and the second drive device 32 to drive at least one of the zoom lens group 21 and the focusing lens group 22 to move along the optical axis 80 to the target position by rotating the outer ring 412 of the zoom adjustment part 41 and the focus adjustment part 42. In order to ensure that the image of the endoscope can be in a clear state during the manual zoom process, when the operator rotates the zoom adjustment part 41 for manual zooming, the focusing lens group 22 can move along the optical axis 80 with the zoom lens group 21. Thereby, the endoscope can observe the specific position that needs to be viewed and keep the image at this position clear.

[0118] It can be seen that the endoscope handle of the present application can realize the functions of automatic focusing and manual focusing of the endoscope through a simple structural design, and has the advantages of easy operation and low cost.

[0119] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0120] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0121] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An endoscope handle, characterized in that: The endoscope handle comprises: A housing (10), wherein a cavity (11) is provided in the housing (10); A lens assembly (20), the lens assembly (20) being arranged in the cavity (11), and comprising a zoom lens group (21) and a focusing lens group (22) arranged in sequence along the same optical axis (80), the zoom lens group (21) and the focusing lens group (22) both being capable of reciprocating along the optical axis (80); a driving assembly (30), the driving assembly (30) being arranged in the cavity (11) and connected to the focusing lens group (22) and the zoom lens group (21) to drive at least one of the focusing lens group (22) and the zoom lens group (21) to move along the optical axis (80); An adjustment component (40), the adjustment component (40) comprising a zoom adjustment portion (41) and a focus adjustment portion (42), the zoom adjustment portion (41) and the focus adjustment portion (42) both being rotatably disposed on the housing (10); A control unit (50), the control unit (50) comprising an operating module (51), a control module (52) and a detection module (53), the operating module (51) and the detection module (53) both being communicatively connected to the control module (52), the operating module (51) being used to transmit a control instruction to the control module (52), the detection module (53) being used to detect the rotation amount of the zoom adjustment unit (41) and the focus adjustment unit (42) and transmit a detection signal to the control module (52), and the control module (52) controlling the driving component (30) according to at least one of the control instruction and the detection signal.

2. The endoscope handle according to claim 1, characterized in that: The zoom adjustment unit (41) and the focus adjustment unit (42) both include an adjustment ring (411); the detection module (53) includes a detection element (531); the detection element (531) includes a calculation module, a first light-emitting unit (5311), and a first light-receiving unit (5312) for receiving light emitted by the first light-emitting unit (5311); The adjusting ring (411) is rotatably arranged on the housing (10) around its own axis, and the adjusting ring (411) is provided with a plurality of adjusting teeth (4111) arranged at intervals along the circumferential direction of the adjusting ring (411), and the spacing between two adjacent adjusting teeth (4111) is equal; The first light-emitting portion (5311) and the first light-receiving portion (5312) are arranged at opposite sides of the adjusting tooth (4111) along the thickness direction of the adjusting tooth (4111), and the adjusting tooth (4111) rotates with the adjusting ring (411) to block the light emitted by the first light-emitting portion (5311) to the first light-receiving portion (5312). The calculation module is communicatively connected with the first light-receiving portion (5312), and the calculation module calculates the rotation amount of the adjusting ring (411) according to the number of light-blocking times of the adjusting tooth (4111) and transmits the detection signal to the control module (52).

3. The endoscope handle according to claim 2, characterized in that: The detection elements (531) include at least two, and the at least two detection elements (531) are arranged at intervals along the circumferential direction of the adjustment ring (411). The control module (52) controls the driving component (30) according to the order in which the adjustment teeth (4111) shield the at least two detection elements (531) so as to drive at least one of the focusing lens group (22) and the zoom lens group (21) to move along the optical axis (80).

4. The endoscope handle according to claim 2 or 3, characterized in that: Along the circumferential direction of the optical axis (80), two adjacent detection elements (531) are arranged at an interval of D degrees, and two adjacent adjustment teeth (4111) are arranged at an interval of P degrees, and D and P satisfy the relationship: Wherein, N is a positive integer.

5. The endoscope handle according to claim 2, characterized in that: The zoom adjustment part (41) and the focus adjustment part (42) both further include an outer ring (412) and an inner ring (413); The inner ring (413) is fixedly connected to the shell (10), the outer ring (412) is sleeved on the outer circumference of the inner ring (413) and can rotate around the axis of the inner ring (413), and the adjustment ring (411) is arranged between the outer ring (412) and the inner ring (413) and is coaxially fixedly connected to the outer ring (412).

6. The endoscope handle according to claim 5, characterized in that: The housing (10) comprises a column, the outer ring (412), the adjustment ring (411) and the inner ring (413) are all sleeved on the outer circumferential surface of the column, and the axes of the outer ring (412), the adjustment ring (411) and the inner ring (413) coincide with the axis of the column.

7. The endoscope handle according to claim 2, characterized in that: The adjusting teeth (4111) are protrudingly arranged on the inner side surface or the outer side surface of the adjusting ring (411); or, The adjusting teeth (4111) are protrudingly arranged on the end surface of the adjusting ring (411) in the axial direction.

8. The endoscope handle according to claim 1, characterized in that: The driving assembly (30) comprises a first driving device (31) and a second driving device (32); wherein one of the first driving device (31) and the second driving device (32) is connected to the focusing lens group (22) to drive the focusing lens group (22) to move along the optical axis (80), and the other of the first driving device (31) and the second driving device (32) is connected to the zoom lens group (21) to drive the zoom lens group (21) to move along the optical axis (80).

9. The endoscope handle according to any one of claims 1 to 3 and 5 to 8, characterized in that: The endoscope handle further comprises an imaging element (60) and an image processing unit (70); The imaging element (60) and the image processing unit (70) are both arranged in the cavity (11), the imaging element (60) is located on the image side of the lens assembly (20), and the image processing unit (70) and the imaging element (60) are both communicatively connected to the control module (52).

10. An endoscope, characterized in that: The endoscope comprises the endoscope handle according to any one of claims 1 to 9.

11. An endoscope handle, characterized in that: The endoscope handle comprises: A housing (10), wherein a cavity (11) is provided in the housing (10); A lens assembly (20), the lens assembly (20) being arranged in the cavity (11), and the lens assembly (20) comprising a zoom lens group (21) and / or a focusing lens group (22) arranged in sequence along the same optical axis (80), the zoom lens group (21) and / or the focusing lens group (22) both being capable of reciprocating along the optical axis (80); An adjustment assembly (40), the adjustment assembly (40) comprising a zoom adjustment portion (41) and / or a focus adjustment portion (42), the zoom adjustment portion (41) and / or the focus adjustment portion (42) both being rotatably disposed on the housing (10) and used for adjusting the reciprocating movement of the lens assembly (20) along the optical axis (80).

12. The endoscope handle according to claim 11, characterized in that: The endoscope handle also includes: a driving assembly (30), the driving assembly (30) being arranged in the cavity (11) and connected to the focusing lens group (22) and the zoom lens group (21) to drive at least one of the focusing lens group (22) and the zoom lens group (21) to move along the optical axis (80); A control unit (50), the control unit (50) comprising an operating module (51), a control module (52) and a detection module (53), the operating module (51) and the detection module (53) both being communicatively connected to the control module (52), the operating module (51) being used to transmit a control instruction to the control module (52), the detection module (53) being used to detect the rotation amount of the zoom adjustment unit (41) and the focus adjustment unit (42) and transmit a detection signal to the control module (52), and the control module (52) controlling the driving component (30) according to at least one of the control instruction and the detection signal.

13. The endoscope handle according to claim 11, characterized in that: The adjustment assembly (40) comprises an adjustment ring (411), and the adjustment ring (411) is provided with a plurality of adjustment teeth (4111) arranged at intervals along the circumferential direction of the adjustment ring (411); the adjustment ring (411) is rotatably arranged on the housing (10) around its own axis, and a rotation detection structure (532) is provided on the axis (4112) and / or the periphery of the adjustment ring (411) for detecting the rotation angle and / or step length of the adjustment ring.

14. The endoscope handle according to claim 13, characterized in that: The endoscope handle comprises: a control unit (50), the control unit (50) comprising a first light-emitting portion (5311) and a first light-receiving portion (5312), the first light-emitting portion (5311) and the first light-receiving portion (5312) being arranged at opposite sides of the adjusting tooth (4111) at intervals along the thickness direction of the adjusting tooth (4111), the adjusting tooth (4111) rotating with the adjusting ring (411) to shield the light emitted from the first light-emitting portion (5311) to the first light-receiving portion (5312).

15. An endoscope handle, characterized in that: The endoscope handle comprises: A housing (10), wherein a cavity (11) is provided in the housing (10); A lens assembly (20), the lens assembly (20) being arranged in the cavity (11), and comprising a zoom lens group (21) and a focusing lens group (22) arranged in sequence along the same optical axis (80), the zoom lens group (21) and the focusing lens group (22) both being capable of reciprocating along the optical axis (80); An adjustment component (40), the adjustment component (40) comprising a zoom adjustment portion (41) and a focus adjustment portion (42), the zoom adjustment portion (41) and the focus adjustment portion (42) both being rotatably disposed on the housing (10); A control unit (50), the control unit (50) comprising an operating module (51), a control module (52) and a detection module (53), the operating module (51) and the detection module (53) being both communicatively connected to the control module (52), the operating module (51) being used to transmit a control instruction to the control module (52), the detection module (53) being used to detect the rotation amount of the zoom adjustment part (41) and the focus adjustment part (42) and transmit a detection signal to the control module (52), and the control module (52) controlling the lens assembly (20) according to at least one of the control instruction and the detection signal.

16. The endoscope handle according to claim 15, characterized in that: The endoscope handle comprises: a driving assembly (30), the driving assembly (30) being arranged in the cavity (11) and connected to the focusing lens group (22) and the zoom lens group (21) to drive at least one of the focusing lens group (22) and the zoom lens group (21) to move along the optical axis (80); The driving assembly (30) comprises: a first driving device (31) and a second driving device (32); wherein one of the first driving device (31) and the second driving device (32) is connected to the focusing lens group (22) to drive the focusing lens group (22) to move along the optical axis (80), and the other of the first driving device (31) and the second driving device (32) is connected to the zoom lens group (21) to drive the zoom lens group (21) to move along the optical axis (80).

17. The endoscope handle according to claim 15, characterized in that: The adjustment assembly (40) comprises an adjustment ring (411), the housing (10) comprises a column, the adjustment ring (411) is rotatably arranged on the housing (10) around its own axis, and the adjustment ring (411) is provided with a plurality of adjustment teeth (4111) arranged at intervals along the circumferential direction of the adjustment ring (411), and the spacing between two adjacent adjustment teeth (4111) is equal; The zoom adjustment part (41) and the focus adjustment part (42) both further include an outer ring (412) and an inner ring (413); The inner ring (413) is fixedly connected to the housing (10), the outer ring (412) is sleeved on the outer circumference of the inner ring (413) and can rotate around the axis of the inner ring (413), and the adjustment ring (411) is arranged between the outer ring (412) and the inner ring (413) and is coaxially fixedly connected to the outer ring (412); The outer ring (412), the adjustment ring (411) and the inner ring (413) are all sleeved on the outer circumferential surface of the column, and the axes of the outer ring (412), the adjustment ring (411) and the inner ring (413) coincide with the axis of the column.

18. A method for controlling an endoscope, characterized in that: The method comprises: Detecting a manual zoom or manual focus signal, wherein the manual zoom or manual focus signal is generated by the rotation of the adjustment component (40) of the endoscope and is used to indicate a rotation parameter of the adjustment component (40); Analyze the rotation parameter from the manual zoom or manual focus signal; A control signal is generated according to the rotation parameter to control the lens assembly (20) of the endoscope to reciprocate along its optical axis (80).

19. The control method according to claim 18, characterized in that: The method further comprises: Detecting auto zoom or auto focus signals; The lens assembly (20) of the endoscope is controlled to move back and forth along its optical axis (80) according to the automatic zoom or automatic focus signal to achieve automatic zoom or automatic focus.

Images