CN218792220U - Camera, system, automatic focusing device and position detection device of endoscope - Google Patents

Abstract

The utility model discloses a camera, system, automatic focusing device and position detection device of endoscope, endoscope automatic focusing's position detection device includes: the supporting cylinder is provided with a long hole extending along the axial direction; the lens cone is movably arranged in the support cylinder along the axial direction; the induction head is arranged on the lens cone and penetrates through the strip hole; the induction pieces are sequentially arranged outside the elongated hole along a straight line, and all the induction pieces are connected with the controller; when the lens cone drives the induction head to move along the axial direction, the induction piece sequentially induces the induction head and sends a signal to the controller. The position relation between the lens barrel and the supporting barrel is directly obtained by the induction head and the induction part, the follow-up closed-loop control of the lens barrel is achieved, the arrangement of sensors on the motor is reduced, the running state of the motor in the driving assembly is mastered through the motion state of the lens barrel in a compact and simple structure in a limited space, the accurate control of the motor is conveniently achieved, and the automatic focusing speed and accuracy are improved.

Description

Camera, system, automatic focusing device and position detection device of endoscope

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, relate to an endoscope auto focus's position detection device. Furthermore, the utility model discloses still relate to an endoscope auto focus device, endoscope camera and endoscope system including the position detection device of above-mentioned endoscope auto focus.

Background

Laparoscopic surgery is a minimally invasive surgery method, and an electronic laparoscopic system generally comprises a camera host, a display, a camera and the like. When an operation is performed, the palm of the operator usually holds the camera, and the lens is adjusted to output a clear image with a proper magnification.

Most of the current market is manually adjusted lenses for focusing, and a few are electric focusing lenses. The electric and manual operations are distinguished by: manual camera lens needs the user to point rotatory hand wheel to the inside lens group of drive removes, plays the regulatory action of focusing, and electronic camera lens is then by being the user and controlling the inside motor of camera through the button, thereby drives the lens group and removes, adjusts the image.

When the motor is driven by the electric lens, the position of the motor in the full stroke, the direction of the motor and the like need to be known, so that the running state of the motor needs to be mastered, and the motor is controlled.

In summary, how to solve the problem of lens barrel control under the condition of limited space of the camera is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an endoscope automatic focusing position detecting device, which can avoid increasing the occupation of the inner space of the camera while realizing the detection of the lens barrel position.

Another object of the present invention is to provide an endoscope autofocus device, an endoscope camera, and an endoscope system including the above endoscope autofocus position detecting device.

In order to achieve the above object, the present invention provides the following technical solutions:

an endoscope autofocus position detecting device, comprising:

the supporting cylinder is provided with a long hole extending along the axial direction;

the lens cone is movably arranged in the support cylinder along the axial direction;

the induction head is arranged on the lens cone and corresponds to the position of the strip hole;

the sensing piece is arranged outside the supporting cylinder along the elongated hole;

the induction head and/or the induction part are/is in communication connection with the controller, and when the lens barrel drives the induction head to move axially, the induction part and the induction head penetrate through the long hole to generate induction so as to detect the relative position of the induction head and the long hole.

Preferably, the lens barrel is provided with an extension rod extending along the axial direction, and the end part of the extension rod is provided with the induction head.

Preferably, one end of the extension rod is fixed at the end of the lens barrel, and the other end of the extension rod is connected with the induction head and extends out of the support barrel from the strip hole.

Preferably, the inductive head is a contact inductive head, the inductive part is a contact inductive part, and the two are in sliding contact.

Preferably, the induction part comprises a plurality of sub induction parts which are arranged adjacently at equal intervals, and the induction ranges of the sub induction parts are adjacent and do not coincide.

Preferably, the inductive head is a non-contact inductive head, the inductive part is a non-contact inductive part, and a gap is kept between the inductive head and the non-contact inductive part.

Preferably, the induction part is fixed on a mounting plate, and the mounting plate is fixedly connected with the supporting cylinder.

Preferably, the device further comprises a base, the supporting cylinder is fixed on the base, and the peripheral surface of the supporting cylinder has a preset distance with the base; the mounting plate is fixed on the base and is opposite to the strip hole.

An endoscope autofocus device including the endoscope autofocus position detecting device according to any one of the above, further comprising:

the imaging induction component is used for receiving the imaging of the lens group in the lens cone and is in communication connection with the controller;

and the driving component is used for driving the lens barrel to move.

Preferably, the driving assembly includes:

the outer cylinder is sleeved outside the supporting cylinder, and the inner wall of the outer cylinder is provided with a spiral groove;

a guide pin provided to the lens barrel;

the micro motor is used for driving the outer barrel to rotate and is in communication connection with the controller;

the supporting cylinder is provided with a guide hole along the axial direction, the guide pin can be arranged in the guide hole in a sliding mode along the axial direction of the supporting cylinder, and the guide pin penetrates through the guide hole and is inserted into the spiral groove.

Preferably, the elongated hole is located near a first end of the support cylinder, and the guide hole is located at a second end of the support cylinder.

An endoscope camera comprises the endoscope automatic focusing device.

An endoscope system comprising the endoscope camera.

The utility model provides a support a section of thick bamboo is equipped with rectangular hole for the response head that sets up on the lens cone can be through rectangular hole and the response piece response of setting outside, the setting of edge rectangular hole length direction of a support section of thick bamboo, and the controller can acquire the moving state of current lens cone through the induction signal of the correspondence that acquires.

Compared with the detection mode that the grating sensor is arranged on the motor in the prior art, the detection method has the advantages that the position relation between the lens barrel and the supporting barrel is directly obtained by the induction head and the induction part, the rotation movement and the position of the motor are detected by the induction part to realize the follow-up closed-loop control on the lens barrel, the arrangement of the sensor on the motor is reduced, the mode that the long holes are formed in the supporting barrel is utilized, and the occupied space of the detection assembly is further reduced. The running state of the motor in the driving assembly is mastered through the motion state of the lens barrel in a compact and simple structure in a limited space, so that the control operation of the motor can be more convenient and accurate in the subsequent realization.

The application also provides an endoscope automatic focusing device, an endoscope camera and an endoscope system which comprise the endoscope automatic focusing position detection device. The endoscope automatic focusing position detection device is arranged, so that the moving state of the lens barrel can be accurately acquired, the precise control of the motor is conveniently realized, and the automatic focusing speed and accuracy are improved; meanwhile, the inner space of the endoscope camera is more abundant, and the layout requirement and the space heat dissipation requirement in use can be met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a sectional view of an endoscope auto-focusing position detecting apparatus provided by the present invention;

fig. 2 is a schematic diagram of a detection assembly of the endoscope auto-focusing position detection apparatus according to the present invention.

In fig. 1-2, the reference numerals include:

1 is a supporting cylinder, 11 is a long hole, and 12 is a guide hole;

2 is a lens cone;

3 is a detection component, 31 is a sensing head, 32 is a sensing piece, 33 is an extension rod, 34 is a mounting plate, and 35 is a mounting plate fixing plate;

4 is a driving component, 41 is an outer cylinder, 411 is a spiral groove, 42 is a guide pin, and 43 is a micro motor;

5 is an imaging induction component, 51 is an imaging target surface, and 52 is a fixing component;

and 6, a base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide an endoscope auto focus's position detection device, the device can avoid increasing the occuping of camera inner space simultaneously in the detection of realization to the lens cone position.

The other core of the utility model is to provide an endoscope auto focus device, endoscope camera and endoscope system including the above-mentioned endoscope auto focus position detection device.

Referring to fig. 1 to 2, fig. 1 is a sectional view of an endoscope auto-focusing position detecting device according to the present invention; fig. 2 is a schematic diagram of a detection assembly of the endoscope auto-focusing position detection apparatus according to the present invention.

The endoscope automatic focusing position detection device is mainly used in a camera of an endoscope, the camera is usually connected with a video interface lens and a camera host, and the video interface lens is connected with a laparoscope lens. The present application provides an endoscope auto-focusing position detection device for detecting the position of a lens barrel, that is, the focusing state, the detection device comprising: a support cylinder 1, a lens barrel 2 and a detection assembly 3. The lens cone 2 is arranged in the supporting cylinder 1 and can move back and forth along the supporting cylinder 1, and the detection component 3 is arranged on the supporting cylinder 1 and used for detecting the position of the lens cone 2, so that a controller and the like can conveniently acquire a focusing state.

Referring to fig. 1 and 2, the supporting cylinder 1 is a cylindrical member, the hollow structure can be used for accommodating the lens barrel 2, and the supporting cylinder 1 is provided with a long hole 11 extending along the axial direction; the elongated hole 11 is provided in the wall surface of the support tube 1, is a hole penetrating in one side in the radial direction, and has a long extension in the axial direction.

The lens barrel 2 is used for accommodating a lens assembly and is movably arranged in the support barrel 1 along the axial direction;

it should be noted that the lens barrel 2 and the support cylinder 1 may be in aperture fit, or may have a large gap, and the lens barrel 2 needs to have a stable and determined axial movement stroke in the support cylinder 1. For example, one of the inner wall of the support cylinder 1 and the outer wall of the lens barrel 2 is provided with a slide rail extending in the axial direction (the length direction of the elongated hole 11), and the other is provided with a slide block movably arranged in the slide rail so as to ensure that the movement track of the lens barrel 2 relative to the support cylinder 1 is stable and is in the same direction as the elongated hole 11.

The sensor head 31 is disposed in the lens barrel 2, and corresponds to the position of the elongated hole 11, and includes that the sensor head 31 is disposed inside the elongated hole 11 (located inside the lens barrel 2) or disposed outside the elongated hole 11 (passing through the elongated hole 11 to reach the outside of the lens barrel 2).

A plurality of sensing elements 32 are arranged outside the support cylinder 1 along the elongated hole 11, and the sensing head 31 and/or the sensing elements 32 are in communication connection with the controller for sending sensing signals to the controller. The sensing element 32 and the sensing head 31 are sensed through the elongated hole 11 to detect the relative position of the two. When the lens barrel 2 drives the sensing head 31 to move axially, the sensing pieces 32 arranged in a strip shape sequentially sense the sensing head 31 according to the arrangement order, and send a signal to the controller when the corresponding sensing pieces 32 sense.

The controller may obtain the current position of the lens barrel 2 relative to the support barrel 1 through the received signal, for example, a preset number of the sequentially arranged sensing members 32 may be stored in the controller, and when the controller receives the signal corresponding to the preset number, the controller may obtain the current position of the lens barrel 2.

In the scheme provided by this embodiment, the elongated hole 11 is provided in the support barrel 1 provided with the lens barrel 2, so that the sensing head 31 provided on the lens barrel 2 can sense the movement state of the current lens barrel 2 through the elongated hole and the sensing member 32 provided outside the support barrel 1 and arranged along the length direction of the elongated hole 11, and the controller can acquire the movement state of the current lens barrel 2 through the acquired corresponding sensing signal.

Compared with the detection mode of arranging the grating sensor on the motor in the prior art, the embodiment utilizes the sensing head 31 and the sensing part 32 to directly obtain the position relation between the lens barrel 2 and the support barrel 1 through the strip hole, so as to realize the subsequent closed-loop control on the lens barrel 2, thereby not only reducing the arrangement of the sensor on the motor, but also utilizing the mode of arranging the strip hole 11 on the support barrel 1, and further reducing the occupied space of the detection component. The running state of the motor in the driving assembly is mastered through the motion state of the lens barrel 2 in a compact and simple structure in a limited space, so that the control operation of the motor can be more convenient and accurate in the subsequent realization. In addition, since the sensing members 32 are sequentially disposed, the precision of the moving position of the lens barrel 2 obtained by the controller can be adjusted by adjusting the density of the sensing members 32.

On the basis of the above embodiment, the length of the elongated hole 11 of the support cylinder 1 is substantially equal to or slightly less than the length of the support cylinder 1, and the sensor head 31 is arranged on the periphery of the middle part of the lens barrel 2;

alternatively, the lens barrel 2 is provided with an extension rod 33, and the sensor head 31 is provided at an end of the extension rod 33.

Note that the lens barrel 2 moves in the support cylinder 1, and the length of the support cylinder 1 is longer than the length of the lens barrel 2.

Optionally, one end of the extension rod 33 is fixed to the end of the lens barrel 2, and the other end is connected to the sensing head 31 and extends out of the support cylinder 1 through the elongated hole 11.

Specifically, the elongated hole 11 is disposed at a first end of the support cylinder 1, the end of the lens barrel 2 is provided with an elongated rod 33 extending along the axial direction, and the lens barrel 2 moves in a second end of the support cylinder 1, so that the elongated rod 33 drives the sensor head 31 to move in the elongated hole 11 of the support cylinder 1 near the first end.

The support cylinder 1 may be a support only, or may be separated from the control barrel 2 by a screw, and the extension rod 33 may be provided to further reduce the space limitation of the periphery of the barrel 2 and avoid the limitation of the movement gap between the support cylinder 1 and the support cylinder.

Alternatively, in order to facilitate the extension of the sensing head 31 out of the elongated hole 11, the extension rod 33 may be an L-shaped extension rod, one end of the L-shaped extension rod is fixed at the end of the lens barrel 2, and the other end of the L-shaped extension rod extends out of the elongated hole 11 and is connected to the sensing head 31.

Alternatively, the extension rod 33 may be in a variety of different shapes, all of which are required to facilitate the extension of the inductive head 31 from the elongated hole 11.

On the basis of any of the above embodiments, the sensor head 31 may be a contact sensor head, and the sensor 32 may be a contact sensor, which are in sliding contact with each other.

The effect of the induction action can be more obvious and more stable through the induction action of the contact type induction piece 32 and the induction head 31.

On the basis of any of the above embodiments, the sensing member 32 includes a contact sensing element, or a capacitive sensing element, or a resistive screen sensing element; when the sensing head 31 contacts the sensing member 32, the sensing member 32 outputs a sensing signal.

Specifically, sensing head 31 connected to lens barrel 2 can extend out of support cylinder 1 through elongated hole 11, and since the moving track of lens barrel 2 is the same direction as the length direction of elongated hole 11, sensing head 31 can be always in a state of extending out of elongated hole 11 during the movement of lens barrel 2.

It should be noted that the sensing head 31 protrudes out of the elongated hole 11 to contact the sensing element 32, and the sensing stability achieved by the contact sensing is higher by contacting or pressing the sensing element 32. In addition, when the sensor 32 is any one of a contact sensor, a capacitive sensor, or a resistive screen sensor, the sensor head 31 needs to be configured with different structures or materials, and can be adjusted according to the use requirement.

In any of the above embodiments, the sensor head 31 is a non-contact sensor head, and the sensor 32 is a non-contact sensor head, with a gap therebetween.

In the present embodiment, since the sensing manner is a non-contact type, the sensing head 31 may be disposed inside the elongated hole 11, i.e., in the lens barrel 2, and does not need to protrude from the elongated hole 11.

Optionally, the sensing element 32 may be a magnetic sensing element, and the sensing head 31 may be a magnetic element, so that sensing detection of the sensing head 31 is realized through magnetic sensing.

Optionally, the sensing element 32 may be a light sensing element, the sensing head 31 is a light source capable of emitting light, and in the moving process of the lens barrel 2, the light sensing element can sense the change of the position of the light source, so that the controller obtains the moving position or the moving state of the lens barrel 2.

Besides, the sensing member 32 and the sensing head 31 can be other types of non-contact sensing devices.

On the basis of any one of the above embodiments, the sensing element 32 includes a plurality of sub-sensing elements that are disposed equidistantly and adjacently, and the sensing ranges of the sub-sensing elements are adjacent and do not coincide.

In order to promote the response effect of response piece 32 to inductive head 31, make the result more clear and definite, a plurality of sub-response pieces in this application are adjacent setting in proper order, and adjacent sub-response piece's response scope is adjacent and do not coincide to the response effect of each sub-response piece does not appear overlapping, and at a moment, the controller can accurately obtain lens cone 2's position through the sensing signal of sub-response piece.

The sub-sensing pieces are sequentially and adjacently arranged to form the sensing piece 32 so as to reasonably utilize the space and reduce the space occupied by the sensing piece 32 as much as possible;

the adjacent sensing ranges of the sub-sensing members means that the ranges in which the sensing elements can sense the sensing head 31 are adjacent, that is, when the sensing range of one sensing member 32 is moved out, the sensing element will enter the sensing range of another sensing member 32 adjacent to the sensing element, so that the sensing head 31 can generate a sensing signal by the corresponding sensing member 32 at every moment.

It should be noted that, the smaller the sensing interval of the sensing element 32, the more closely the sensing element 32 is disposed, and the more accurate the sensing effect is.

On the basis of any of the above embodiments, the sensing element 32 is fixed to the mounting plate 34, and the mounting plate 34 is fixedly connected to the support cylinder 1.

Referring to fig. 2, the mounting plate 34 is used as a bearing member for mounting the sensing element 32, and the mounting plate 34 may be a flat plate and is fixed at a fixed position outside the supporting cylinder 1, where the position of the mounting plate needs to correspond to the elongated hole 11 of the supporting cylinder 1, so that the sensing element 32 can sense, such as contact sensing and extrusion sensing, after the sensing head 31 extends out of the elongated hole 11.

On the basis of any one of the above embodiments, the device further comprises a base 6, the support cylinder 1 is fixed on the base 6, and the outer peripheral surface of the support cylinder 1 has a preset distance from the base 6; the mounting plate 34 is fixed to the base 6 and faces the elongated hole 11.

It should be noted that, since the outer circumferential surface of the supporting cylinder 1 is provided with a predetermined distance from the base 6 for conveniently providing the sensing element 32 and the mounting plate 34, and also for providing a moving space for the sensing head 31, the supporting cylinder 1 may be provided with a connecting structure at an end portion to connect the base 6, or be supported by a supporting rod or the like in the circumferential direction.

In addition to the main structure and connection relationship of the endoscope automatic focusing position detecting device provided in each of the above embodiments, the present invention also provides an endoscope automatic focusing device, which includes the endoscope automatic focusing position detecting device provided in any one of the above embodiments, and further includes: an imaging sensing assembly 5 and a drive assembly 4.

The imaging induction component 5 is used for receiving imaging of the lens group in the lens cone 2, and the imaging induction component 5 is in communication connection with the controller; specifically, the imaging sensing assembly 5 is disposed on an imaging optical path of the lens assembly of the lens barrel 2 and is capable of receiving an image of the lens assembly.

Drive assembly 4 is used for driving lens cone 2 to remove, and the drive mode is more, for example through the outer independent lead screw that sets up of motor drive lens cone 2 and remove to promote lens cone 2 and remove, perhaps with the lens cone setting in the cup joint structure of utensil screwed, realize the motor and rotate, drive modes such as lens cone 2 removal, can select according to particular case.

The controller is connected with the imaging sensing assembly 5 and the driving assembly 4, and is used for receiving imaging definition data of the imaging sensing assembly 5 and controlling the driving assembly 4 to work.

It should be noted that the controller may be a separate controller disposed in the camera head or a camera system processor linked externally to the camera head. Since the number of the sensing members 32 is limited, the controller may control the driving assembly 4 to operate by interpolating the obtained accurate position of the motor (or lens barrel), the distance between two adjacent sensing members 32, and the number of pulses of the driving motor, so as to obtain the specific position of the lens barrel conveniently.

Specifically, to above-mentioned formation of image response subassembly 5, can set up the light trap in the axial of lens cone 2, one side of light trap is the lens subassembly, and the opposite side of light trap is above-mentioned formation of image response subassembly 5. Optionally, the imaging sensor assembly 5 includes an imaging target 51 and a fixing member 52, the imaging target 51 is disposed on the side opposite to the light hole, and the fixing member 52 may be disposed on the base 6 or in other positions fixed to the support cylinder 1.

Optionally, the lens barrel 2 can be driven by the fixed cylinder and the outer cylinder, that is, the lens barrel 2 is arranged in the fixed cylinder, the outer cylinder is sleeved outside the fixed cylinder, the spiral groove 411 is formed in the inner wall of the outer cylinder, the fixed cylinder is provided with a guide long hole along the axial direction, the lens barrel 2 is provided with the guide pin 42, the guide pin 42 penetrates through the guide long hole and is inserted into the spiral groove 411, and the lens barrel 2 is driven to move along the axial direction by rotating the outer cylinder.

In a specific embodiment, the supporting cylinder 1 can be used as the above-mentioned fixed cylinder to play a role of guiding. The driving unit 4 includes an outer cylinder 41, a guide pin 42, and a micro motor 43.

Referring to fig. 1, wherein the outer cylinder 41 is sleeved outside the support cylinder 1, and the inner wall of the outer cylinder 41 has a spiral groove 411;

the guide pin 42 is provided on the outer periphery of the lens barrel 2;

the micro motor 43 is used for driving the outer cylinder 41 to rotate, and the micro motor 43 is in communication connection with the controller; it should be noted that the output of the micro motor 43 is a rotation output, and the rotation force can be transmitted to the outer cylinder 41 through gear transmission, so as to drive the outer cylinder 41 to rotate relative to the lens barrel 2.

The support cylinder 1 is provided with a guide hole 12 along the axial direction, a guide pin 42 is slidably provided in the guide hole 12 along the axial direction of the support cylinder 1, and the guide pin 42 passes through the guide hole 12 and is inserted into the spiral groove 411.

In the above structure, the lens barrel 2 can be driven to move along the length direction of the guiding hole 12 by rotating the outer cylinder 41, and the left rotation and the right rotation of the outer cylinder 41 correspond to the left movement and the right movement of the lens barrel 2, respectively.

Optionally, the elongated hole 11 is located at a side close to the first end of the support cylinder 1, and the guiding hole 12 is located at a side close to the second end of the support cylinder 1, so that the arrangement of the hole positions on the support cylinder 1 is more reasonable.

In addition to the endoscope autofocus position detecting device and the endoscope autofocus device provided in the above embodiments, the present invention further provides an endoscope camera including the endoscope autofocus device and an endoscope system, and the structures of the endoscope system and other parts of the endoscope camera please refer to the prior art, which is not repeated herein.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above details are provided for the endoscope auto-focusing position detecting device, the endoscope camera and the endoscope system. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (13)

1. An endoscope autofocus position detecting device, comprising:

a support cylinder (1) provided with a long hole (11) extending in the axial direction;

the lens cone (2) is movably arranged in the support cylinder (1) along the axial direction;

the induction head (31) is arranged on the lens barrel (2) and corresponds to the position of the strip hole (11);

the induction piece (32) is arranged outside the support cylinder (1) along the elongated hole (11);

the induction head (31) and/or the induction part (32) are/is in communication connection with a controller, and when the lens barrel (2) drives the induction head (31) to move along the axial direction, the induction part (32) and the induction head (31) penetrate through the strip hole (11) to generate induction so as to detect the relative position of the induction head (31) and the strip hole.

2. The endoscope autofocus position detecting device according to claim 1, wherein the barrel (2) is provided with an extension rod (33), and the sensing head (31) is provided at an end of the extension rod (33).

3. The endoscope autofocus position detecting device according to claim 2, wherein the extension rod (33) has one end fixed to the end of the lens barrel (2) and the other end connected to the sensor head (31) and extending out of the support cylinder (1) through the elongated hole (11).

4. The endoscope autofocus position detecting device according to claim 3, wherein the sensor head (31) is a contact sensor head, and the sensor member (32) is a contact sensor member, which are in sliding contact with each other.

5. The endoscope autofocus position detecting device of claim 1, wherein the sensor element (32) comprises a plurality of sensor sub-elements disposed adjacent to each other at equal intervals, and the sensing ranges of the sensor sub-elements are adjacent to each other and do not overlap with each other.

6. An endoscope autofocus position detecting device according to claim 1 or 5, wherein the sensor head (31) is a non-contact sensor head and the sensor element (32) is a non-contact sensor element, with a gap being maintained between them.

7. The endoscope autofocus position detecting device according to any of claims 1 to 5, wherein the sensor element (32) is fixed to a mounting plate (34), and the mounting plate (34) is fixedly connected to the support cylinder (1).

8. The endoscope autofocus position detecting device according to claim 7, further comprising a base (6), wherein the support cylinder (1) is fixed to the base (6), and an outer circumferential surface of the support cylinder (1) has a predetermined distance from the base (6); the mounting plate (34) is fixed on the base (6) and is opposite to the strip hole (11).

9. An endoscope autofocus device including the endoscope autofocus position detecting device according to any one of claims 1 to 8, further comprising:

the imaging induction component (5) is used for receiving the imaging of the lens group in the lens cone (2) and is in communication connection with the controller;

the driving component (4) is used for driving the lens barrel (2) to move.

10. The endoscopic autofocus device according to claim 9, wherein the drive assembly (4) comprises:

the outer cylinder (41) is sleeved outside the support cylinder (1), and the inner wall of the outer cylinder (41) is provided with a spiral groove (411);

a guide pin (42) provided to the lens barrel (2);

the micro motor (43) is used for driving the outer cylinder (41) to rotate, and the micro motor (43) is in communication connection with the controller;

the supporting cylinder (1) is provided with a guide hole (12) along the axial direction, the guide pin (42) can be arranged in the guide hole (12) along the supporting cylinder (1) in an axial sliding mode, and the guide pin (42) penetrates through the guide hole (12) and is inserted into the spiral groove (411).

11. An endoscope autofocus device according to claim 10, characterized in that the elongated hole (11) is located at a first end of the support cylinder (1) and the guide hole (12) is located at a second end of the support cylinder (1).

12. An endoscope camera comprising an endoscope autofocus device of any of claims 9 to 11.

13. An endoscopic system comprising an endoscopic camera head, wherein the endoscopic camera head is the endoscopic camera head of claim 12.

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