CN220961975U

CN220961975U - Monitoring device and interpupillary distance adjusting device

Info

Publication number: CN220961975U
Application number: CN202322748413.5U
Authority: CN
Inventors: 郭峰; 杨晓光; 李栋
Original assignee: Play Out Dreams Shanghai Technology Co ltd
Current assignee: Play Out Dreams Shanghai Technology Co ltd
Priority date: 2023-10-13
Filing date: 2023-10-13
Publication date: 2024-05-14
Anticipated expiration: 2033-10-13

Abstract

The utility model provides a monitoring device and a pupil distance adjusting device. The translation piece is fixedly connected to the metal elastic sheet; when the translation piece is translated, the metal shrapnel slides on the carbon film layers, two sliding ends of the metal shrapnel are respectively and continuously contacted with the two carbon film layers, and each pin penetrates through one carbon film layer and the substrate and is electrically connected with the carbon film layer. When the translation piece moves, the metal shrapnel connected with the translation piece slides on the two carbon film layers, so that the resistance of the combination of the two carbon film layers and the metal shrapnel changes.

Description

Monitoring device and interpupillary distance adjusting device

Technical Field

The utility model relates to the field of intelligent head-mounted equipment, in particular to a monitoring device and a pupil distance adjusting device.

Background

The interpupillary distance is simply the distance between the pupils of the eyes. The eyes of a normal person watch the same object, the objects are respectively imaged at the retinas of the eyes and are overlapped in the central vision of the brain, so that a complete single object with three-dimensional effect is formed. The head-mounted device is provided with a left lens barrel and a right lens barrel, and pupils of two eyes of a user are respectively opposite to central axes of the two lens barrels in an ideal state, so that the best visual effect is obtained. Because of the variability in the interpupillary distance of different users, the positions of the two barrels of the head-mounted device and the barrel spacing should be adjustable, typically in a horizontal direction so that the barrels are translated.

The prior pupil distance adjusting structure of the head-mounted equipment generally has no adjustment quantity feedback function, and after the pupil distance is adjusted by a user, the user can not easily determine whether the adjustment quantity is proper or not, and can only feel whether the visual effect is adjusted to be optimal or not by naked eyes. However, the visual sense of the user is inaccurate, the error of the pupil distance adjustment is large, and the user is easy to feel tired.

Disclosure of Invention

The utility model provides a monitoring device, which aims to solve the technical problem that the translation amount of an existing part is difficult to monitor in real time after the part is translated.

In order to solve the problem that after the positions of the two lens barrels of the existing head-mounted display device are adjusted, the translation amount of the two lens barrels is difficult to monitor in real time, the utility model also provides a pupil distance adjusting device which comprises two monitoring devices.

The monitoring device comprises a substrate, two strip-shaped carbon film layers, a metal spring plate, a translation piece and two pins. Two strip-shaped carbon film layers are attached to the surface of the same side of the substrate; each carbon film layer comprises an interface end, and the two interface ends are oppositely arranged and separated from each other; the metal elastic sheet comprises at least two sliding ends; the translation piece is fixedly connected to the metal elastic sheet; when the translation piece is translated, the metal elastic sheet slides on the carbon film layers, and two sliding ends are respectively and continuously contacted with the two carbon film layers; each pin penetrates through the interface end of the carbon film layer and the substrate and is electrically connected with the carbon film layer.

Further, the monitoring device also comprises a circuit board and a flat cable, wherein the circuit board is provided with a power supply, a resistance measuring device and a flat cable interface; one end of the flat cable is electrically connected to the two pins respectively, and the other end of the flat cable is electrically connected to the flat cable interface; the two carbon film layers, the metal elastic sheet, the power supply and the resistance measuring device are connected in series to form a loop.

Further, the carbon film layer is L-shaped, and the metal elastic sheet is I-shaped.

Further, the metal spring plate comprises two sliding ends and a connecting part. Each sliding end is a strip-shaped piece and is abutted to a carbon film layer, and the extending directions of the two sliding ends are parallel to each other; the connecting part is a strip-shaped piece; two ends of the connecting part are respectively connected to the middle parts of the two sliding ends; the middle part of the connecting part is connected to the translation piece.

Further, the metal spring plate further comprises more than two first protruding parts and second protruding parts. Each first protruding part protrudes from the surface of one sliding end facing one side of the carbon film layer and is abutted to the carbon film layer; the second protruding part protrudes from the surface of one side of the connecting part away from the substrate and is connected to the translation piece.

Further, the pupil distance adjusting device comprises two monitoring devices as described above.

Further, the pupil distance adjusting device further comprises a guide rod and two connecting pieces, wherein the guide rod is horizontally arranged. Each connecting piece is provided with two through holes which are sleeved on the surface of the guide rod, and each connecting piece is fixedly connected to one lens cone; the translation part of the monitoring device is a sliding block; each connecting piece is fixedly connected to one translation piece.

Further, the pupil distance adjusting device further comprises a base, a motor, a sliding rod and a screw rod. The base comprises two mounting plates which are oppositely arranged; the monitoring device is positioned between the two mounting plates; the motor is fixed to the base, the motor including a power take-off shaft; two ends of the sliding rod are respectively connected to the two mounting plates; one end of the screw rod is rotatably connected to one mounting plate, and the other end of the screw rod penetrates through the other mounting plate and is coaxially connected to the power output shaft; the central axis of the screw rod is parallel to the central axis of the slide rod; the translation piece is sleeved outside the sliding rod and the screw rod and is connected to the screw rod in a threaded manner; when the screw rod is rotated, the translation piece can slide along the extending direction of the sliding rod.

Further, the pupil distance adjusting device further comprises a clamping groove and a clamping block. The clamping groove is recessed in the surface of the translation part facing one side of the connecting part; the clamping block protrudes out of the surface of one side of the connecting piece, which faces the translation piece, and is clamped into the clamping groove.

Further, the pupil distance adjusting device further comprises a circuit board, and the circuit board is provided with a processor and is electrically connected to a motor and a resistance measuring device.

The utility model has the advantages that the utility model provides a monitoring device which comprises two strip-shaped carbon film layers, a metal elastic sheet and a translation piece. The metal shrapnel comprises at least two sliding ends, the translation piece is fixedly connected to the metal shrapnel, when the translation piece is translated, the metal shrapnel slides on the carbon film layers, and the two sliding ends are respectively and continuously contacted with the two carbon film layers. When the translation piece moves, the metal shrapnel connected with the translation piece slides on the two carbon film layers, so that the resistance of the combination of the two carbon film layers and the metal shrapnel changes, the translation distance of the translation piece is converted into the variable quantity of the resistance value of the combination of the two carbon film layers and the metal shrapnel, the variable quantity of the resistance value is easier to measure, and the measurement accuracy of the resistance value is higher.

The utility model also provides a pupil distance adjusting device, which comprises two monitoring devices, a horizontally arranged guide rod and two connecting pieces. The connecting pieces are sleeved on the surface of the guide rod, each connecting piece is fixedly connected to a lens cone, and each connecting piece is fixedly connected to a translation piece of a monitoring device. When the interpupillary distance of a pair of lens barrels is adjusted, the lens barrels are connected to the translation piece through the connecting piece and are matched with the monitoring device, and the technical problem that the distance variation of the existing head-mounted display equipment can be monitored in real time after the interpupillary distance is adjusted can be solved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an interpupillary distance adjusting device in the present utility model;

FIG. 2 is a schematic view of a part of the structure of the monitoring device in the present utility model;

FIG. 3 is a schematic view of the overall structure of the metal spring plate according to the present utility model;

FIG. 4 is a schematic diagram of electrical connections of a processor according to the present utility model;

FIG. 5 is a schematic view of a portion of a circuit board according to the present utility model;

FIG. 6 is a schematic view of a part of the pupil distance adjusting device according to the present utility model;

FIG. 7 is a schematic diagram of a connection structure of a translation member and a metal spring plate according to the present utility model;

FIG. 8 is a schematic diagram of a connection structure of a host bracket and a guide bar according to the present utility model;

fig. 9 is a schematic diagram of a connection structure of a translation member and a connection member according to the present utility model.

The labels in the figures are as follows:

1 a monitoring device, 2 a guide rod, 3 a connecting piece, 4 a lens cone, 5 a base, 6 a motor, 7a slide rod and 8 a screw rod,

11 Translation part, 12 substrate, 13 carbon film layer, 14 metal spring sheet, 15 pin, 16 circuit board, 17 flat cable, 31 fixture block, 51 mounting plate, 91 boss, 92 locking part,

111 Card slot, 141 slide end, 142 connection, 161 processor, 162 resistance measuring device, 171 flat cable interface, 1411 first protrusion, 1421 second protrusion.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The following description of the preferred embodiments of the present utility model, with reference to the accompanying drawings, is provided to illustrate that the utility model may be practiced, and these embodiments will fully describe the technical contents of the present utility model to those skilled in the art so that the technical contents of the present utility model may be more clearly and conveniently understood. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the drawings, like structural elements are referred to by like reference numerals and like structural or functional elements are referred to by like reference numerals throughout. Directional terms, such as upper, lower, front, rear, left, right, inner, outer, upper surface, lower surface, side, top surface, bottom, front end, rear end, etc., are used in the drawings for the purpose of illustrating and explaining the present utility model, and are not used to limit the scope of the present utility model.

In the drawings, like structural elements are denoted by like reference numerals. When some element is described as being "on" another element, the element may be directly on the other element; there may also be an intermediate member that is placed on the intermediate member and the intermediate member is placed on another member. When an element is referred to as being "mounted to" or "connected to" another element, it can be directly "mounted to" or "connected to" the other element or be indirectly "mounted to" or "connected to" the other element via an intervening element.

As shown in fig. 1, the present embodiment provides a pupil distance adjusting device, which includes two translation member 11 monitoring devices 1, a horizontally disposed guide rod 2, and two connection members 3. The translation member is in particular a slider. The connecting pieces 3 are sleeved on the surface of the guide rod 2, each connecting piece 3 is fixedly connected to one lens barrel 4, and each connecting piece 3 is fixedly connected to one translation piece 11 of the translation piece 11 monitoring device 1. When the translation member 11 moves in the horizontal direction, the connection member 3 fixedly connected to the translation member 11 slides on the guide rod 2 along with the translation member 11, thereby driving the lens barrel 4 to move, and thereby adjusting the interpupillary distance of the pair of lens barrels 4.

As shown in fig. 1 to 3, the device 1 for monitoring the translation member 11 includes a substrate 12, two strip-shaped carbon film layers 13, a metal spring 14, the translation member 11, and two pins 15.

The carbon film 13 is L-shaped, two strip-shaped carbon films 13 are attached to the surface of the same side of the substrate 12, each carbon film 13 includes an interface end, and the two interface ends are opposite and separated from each other. The carbon film layer 13 has good self-lubricating property, so that the friction force of the surface of the carbon film layer 13 is small and is not easy to wear. The resistance value of the carbon film layer 13 is uniformly changed along with the change of the length of the carbon film layer 13, namely, the resistance of the carbon film layer 13 is in direct proportion to the length of the carbon film layer, in the scheme, the carbon film layer 13 is equivalent to a resistance with uniform material, but the carbon film layer 13 has the advantages of small occupied space, light weight and capability of preventing the pupil distance adjusting device from causing burden to a user.

The metal spring piece 14 is i-shaped, the metal spring piece 14 includes at least two sliding ends 141, the translation piece 11 is fixedly connected to the metal spring piece 14, when the translation piece 11 is translated, the metal spring piece 14 slides on the carbon film layer 13, and the two sliding ends 141 are respectively in continuous contact with the two carbon film layers 13. Each sliding end 141 of the metal elastic sheet 14 is a bar-shaped piece and is respectively abutted to a carbon film circuit, and each sliding end 141 protrudes towards one side of the carbon film circuit to form at least one first protruding part 1411; the metal spring 14 further includes a connecting portion 142, the connecting portion 142 is a bar, one end of the connecting portion 142 is connected to the middle of one sliding end 141, the other end of the connecting portion 142 is connected to the middle of the other sliding end 141, the middle of the connecting portion 142 protrudes from one side of the substrate 12 away from the middle to form a second protruding portion 1412, and the second protruding portion 1412 is fixedly connected with one of the translation members 11. The metal spring piece 14 is made of beryllium copper, and is electrically conductive, and can communicate with the pair of parallel carbon layers 13.

The PINs 15 are PIN PINs, and each PIN 15 penetrates through an interface end of the carbon film layer 13 and the substrate 12 and is electrically connected with the carbon film layer 13.

As shown in fig. 1, 2, 4 and 5, the monitoring device 1 for the translation member 11 further includes a circuit board 16 and a flat cable 17. The circuit board 16 is provided with a power supply, a processor 161, a resistance measuring device 162 and a wire arrangement interface 171, one end of the wire arrangement 17 is respectively and electrically connected to the two pins 15, and the other end of the wire arrangement 17 is electrically connected to the wire arrangement interface 171; the two carbon films 13, the metal spring plate 14, the power supply and the resistance measuring device 162 are connected in series to form a loop. In the loop, the two carbon film layers 13 and the metal spring 14 can form an equivalent resistor, and the resistance value of the equivalent resistor is the sum of the resistance values of the two carbon films and the metal spring 14. The first carbon film is a carbon film layer 13 between one lead 15 and one sliding end 141, and the second carbon film is a carbon film layer 13 between the other lead 15 and the other sliding end 141. Since the metal dome 14 has good conductivity and is connected in series to the two carbon films, the resistance of the metal dome 14 itself is negligible. Therefore, when the metal spring 14 slides on the pair of carbon film layers 13, the resistance of the equivalent resistor will change uniformly with the position change of the metal spring 14. The resistance measuring device 162 is capable of detecting the resistance value of the equivalent resistor in real time, and the processor 161 is connected to the resistance measuring device 162 and is used for receiving the resistance value signal of the equivalent resistor.

As shown in fig. 1 and 6, the pupil distance adjusting device further includes a base 5, a motor 6, a slide bar 7, and a screw rod 8. The base 5 comprises two oppositely arranged mounting plates 51, and the translator 11 monitoring device 1 is located between the two mounting plates 51. The motor 6 is fixed to the base 5, the motor 6 comprising a power take-off shaft. The slide bar 7 is connected at both ends to two mounting plates 51, respectively. One end of the screw rod 8 is rotatably connected to one mounting plate 51, and the other end of the screw rod 8 passes through the other mounting plate 51 and is connected to the power output shaft. The central axis of the screw rod 8 is parallel to the central axis of the slide rod 7. The power output shaft of the motor 6 rotates to drive the screw rod 8 to rotate, the screw rod 8 can convert rotary motion into linear motion, the translation piece 11 is driven to horizontally move, the sliding rod 7 plays a limiting role, the translation piece 11 cannot shake left and right to cause dislocation, and the translation piece 11 always keeps horizontally moving. The motor 6 is also electrically connected to a processor 161, the processor 161 being capable of transmitting a switching signal to the motor 6.

As shown in fig. 1, 2 and 7, the side of the translation member 11 facing the substrate 12 is fixedly connected with the metal elastic sheet 14, in this embodiment, the metal elastic sheet 14 is fixedly connected with the translation member 11 by injection molding, and specifically, the second protrusion 1412 of the metal elastic sheet 14 is partially injection molded into the translation member 11. Because the metal spring plate 14 is made of beryllium copper, the metal spring plate 14 has certain pre-pressing elasticity, and the metal spring plate 14 is not easy to deform in a shaping way. The translation member 11 will apply a pressure to the metal spring 14 in one direction towards the substrate 12, and since the first and second bar members of the metal spring 14 are abutted to the pair of carbon film layers 13, the metal spring 14 will apply a pressure to the carbon film layers 13 in one direction towards the substrate 12. Since the sliding end 141 protrudes towards one side of the carbon film layer 13 to form two first protruding parts 1411 and the other sliding end 141 protrudes towards one side of the carbon film layer 13 to form two first protruding parts 1411, the first protruding parts 1411 generate certain elastic deformation, so that the metal elastic sheet 14 can stably keep contact with the carbon film layer 13, the situation of poor contact between the metal elastic sheet 14 and the carbon film layer 13 during sliding is prevented,

As shown in fig. 1 and 8, the guide bar 2 is located below the pair of translators 11 of the monitoring device 1. The translation piece 11 monitoring devices 1's below department is equipped with equidistant three boss 91, and guide bar 2 run-through fixed mounting is to three boss 91, and boss 91 department of both sides respectively is equipped with a locking piece 92, thereby prevents that guide bar 2 from appearing sliding displacement and consequently coming off from the host computer support.

As shown in fig. 1 and 9, each connecting piece 3 is slidably sleeved on the outer surface of the guide rod 2 and is connected to one translation piece 11. The clamping groove 111 is recessed in the surface of the translation piece 11 facing the side of the connecting piece 3; the clamping block 31 protrudes from the surface of the connecting piece 3 facing the side of the translation piece 11, and the clamping block 31 is clamped into the clamping groove 111. When the translator 11 is displaced in the horizontal direction, the connector 3 will follow the translator 11 by an equal amount.

Each lens barrel 4 is connected to a connecting member 3. The included angle between the pair of lens barrels 4 is 0-10 degrees, and the purpose of setting an inclined angle in the pair of lens barrels 4 is to enlarge the observation field of vision of human eyes and improve the experience of users. When the translation member 11 is displaced in the horizontal direction, the connection member 3 will be displaced by the same amount following the translation member 11, so that the position of the driving barrel 4 is changed. When a connector 3 moves, any point on the lens barrel 4 connected with the connector will displace in the same direction and distance as the connector 3. In summary, when the lens barrel 4 is displaced in the horizontal direction, the equivalent resistance formed by the pair of carbon film layers 13 and the metal elastic sheet 14 will be uniformly changed, so as to realize feedback on the displacement of the lens barrel 4, and thus, the processor 161 can acquire the pupil distance information of the pupil distance adjusting device through the resistance measuring device 162 in real time.

As shown in fig. 1 to 9, in a practical situation, if the pupil distance of the current pupil distance adjusting device and the pupil distance of the user are not matched with each other, the processor 161 will transmit an electrical signal to any motor 6 or a pair of motors 6 through the flat cable 17 to start the motors 6. The power output shaft of the motor 6 is connected to the screw rod 8 to drive the screw rod 8 to rotate, the screw rod 8 is sleeved with the translation piece 11, and the screw rod 8 converts the rotary motion of the power output shaft into the linear motion of the translation piece 11. The slide bar 7 limits the displacement of the translation piece 11, prevents the upper end and the lower end of the translation piece 11 from rotating, and prevents the translation piece 11 from shaking left and right to cause dislocation, so that the translation piece 11 always keeps horizontal movement. The translation piece 11 is fixedly connected with the connecting piece 3, the guide rod 2 is parallel to the screw rod 8 and is positioned at the lower end of the translation piece 11, so that when the translation piece 11 is displaced in the horizontal direction, the connecting piece 3 is displaced by an equal amount along with the translation piece 11. The connecting piece 3 is fixedly connected with the lens barrel 4, so that when the translation piece 11 is displaced in the horizontal direction, the lens barrel 4 will follow the translation piece 11 to displace by the same amount.

The second protrusion 1412 of the metal spring 14 is partially injection molded into the translating member 11, so when the translating member 11 is displaced in the horizontal direction, the metal spring 14 will follow the translating member 11 to displace in an equal amount, and in combination, the displacement of the lens barrel 4 is equal to the displacement of the metal spring 14 in the same direction. The two carbon films 13, the metal spring plate 14, the power supply and the resistance measuring device 162 are connected in series to form a loop. In the loop, the two carbon film layers 13 and the metal spring 14 can form an equivalent resistor, and the resistance value of the equivalent resistor is the sum of the resistance values of the two carbon films and the metal spring 14. The first carbon film is a carbon film layer 13 between one lead 15 and one sliding end 141, and the second carbon film is a carbon film layer 13 between the other lead 15 and the other sliding end 141. Therefore, when the metal dome 14 slides on the pair of carbon film layers 13, the resistance value of the equivalent resistor uniformly changes with the position change of the metal dome 14. The equivalent resistors formed by the carbon film 13 and the metal elastic sheet 14 are electrically connected to the resistance measuring device 162 through the pair of pins 15, so that the resistance measuring device 162 can detect the resistance value of the equivalent resistor in real time, and the processor 161 is connected to the resistance measuring device 162 and is used for receiving the resistance value signal of the equivalent resistor. Therefore, when the lens barrel 4 is displaced in the horizontal direction, the resistance signals output by the equivalent resistances formed by the carbon film layers 13 and the metal elastic sheets 14 are uniformly changed, so that the feedback of the displacement of the lens barrel 4 is realized, and the processor 161 can acquire the pupil distance information of the pupil distance adjusting device in real time.

The embodiment has the advantage of providing a monitoring device which comprises two strip-shaped carbon film layers, a metal elastic sheet and a translation piece. The metal shrapnel comprises at least two sliding ends, the translation piece is fixedly connected to the metal shrapnel, when the translation piece is translated, the metal shrapnel slides on the carbon film layers, and the two sliding ends are respectively and continuously contacted with the two carbon film layers. When the translation piece moves, the metal shrapnel connected with the translation piece slides on the two carbon film layers, so that the resistance of the combination of the two carbon film layers and the metal shrapnel changes, the translation distance of the translation piece is converted into the variable quantity of the resistance value of the combination of the two carbon film layers and the metal shrapnel, the variable quantity of the resistance value is easier to measure, and the measurement accuracy of the resistance value is higher.

The embodiment also provides a pupil distance adjusting device, which comprises two monitoring devices, a horizontally arranged guide rod and two connecting pieces. The connecting pieces are sleeved on the surface of the guide rod, each connecting piece is fixedly connected to a lens cone, and each connecting piece is fixedly connected to a translation piece of a monitoring device. When the interpupillary distance of a pair of lens barrels is adjusted, the lens barrels are connected to the translation piece through the connecting piece and are matched with the monitoring device, and the technical problem that the distance variation of the existing head-mounted display equipment can be monitored in real time after the interpupillary distance is adjusted can be solved.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. A monitoring device, comprising:

A substrate;

Two strip-shaped carbon film layers attached to the surface of the same side of the substrate; each carbon film layer comprises an interface end, and the two interface ends are oppositely arranged and separated from each other;

The metal elastic sheet comprises at least two sliding ends;

The translation piece is fixedly connected to the metal elastic sheet; when the translation piece is translated, the metal elastic sheet slides on the carbon film layers, and two sliding ends are respectively and continuously contacted with the two carbon film layers; and

And each pin penetrates through the interface end of the carbon film layer and the substrate and is electrically connected with the carbon film layer.

2. The monitoring device of claim 1, further comprising:

The circuit board is provided with a power supply, a resistance measuring device and a flat cable interface; and

One end of the flat cable is electrically connected to the two pins respectively, and the other end of the flat cable is electrically connected to the flat cable interface;

The two carbon film layers, the metal elastic sheet, the power supply and the resistance measuring device are connected in series to form a loop.

3. The monitoring device of claim 1, wherein,

The carbon film layer is L-shaped; the metal spring plate is I-shaped.

4. The monitoring device of claim 1, wherein,

The metal spring plate comprises:

Two sliding ends, each of which is a strip-shaped piece and is abutted to a carbon film layer, wherein the extending directions of the two sliding ends are parallel to each other; and

The connecting part is a strip-shaped piece; two ends of the connecting part are respectively connected to the middle parts of the two sliding ends; the middle part of the connecting part is connected to the translation piece.

5. The monitoring device of claim 4, wherein,

The metal spring plate further comprises:

more than two first protruding parts, each protruding from the surface of a sliding end facing one side of a carbon film layer and abutting against the carbon film layer; and

And the second protruding part protrudes out of the surface of one side of the connecting part far away from the substrate and is connected to the translation piece.

6. An interpupillary distance adjusting device, characterized by comprising:

Two monitoring devices according to any one of claims 1-5.

7. The pupil distance adjusting apparatus as defined in claim 6, further comprising:

A horizontally arranged guide rod; and

Two connecting pieces, each connecting piece is provided with two through holes, and the two through holes are sleeved on the surface of the guide rod;

each connecting piece is fixedly connected to one lens barrel;

the translation part of the monitoring device is a sliding block; each connecting piece is fixedly connected to one translation piece.

8. The pupil distance adjusting apparatus as defined in claim 7, further comprising:

The base comprises two mounting plates which are oppositely arranged; the monitoring device is positioned between the two mounting plates;

a motor secured to the base, the motor including a power take-off shaft;

the two ends of the sliding rod are respectively connected to the two mounting plates; and

One end of the screw rod is rotatably connected to one mounting plate, and the other end of the screw rod penetrates through the other mounting plate and is coaxially connected to the power output shaft; the central axis of the screw rod is parallel to the central axis of the slide rod;

The translation piece is sleeved outside the sliding rod and the screw rod and is connected to the screw rod in a threaded manner; when the screw rod is rotated, the translation piece can slide along the extending direction of the sliding rod.

9. The pupil distance adjusting apparatus as claimed in claim 7, further comprising

The clamping groove is recessed in the surface of the translation part facing one side of the connecting part;

The clamping block protrudes out of the surface of the connecting piece, which faces one side of the translation piece, and is clamped into the clamping groove.

10. The pupil distance adjusting apparatus as claimed in claim 6, further comprising

The circuit board is provided with a processor and is electrically connected to a motor and a resistance measuring device.