CN116138727A

CN116138727A - Pupil measuring device

Info

Publication number: CN116138727A
Application number: CN202310244709.5A
Authority: CN
Inventors: 邓其跃; 丁宇; 张莉; 周艺; 张炎杰; 钟镜瑄; 黄邦国; 陆家磊; 肖昱翔
Original assignee: Third Military Medical University TMMU
Current assignee: Third Military Medical University TMMU
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-05-23

Abstract

The utility model discloses a pupil measuring device which comprises a bottom plate and a first supporting column, wherein the top of the bottom plate is provided with the first supporting column, the outer side of the first supporting column is movably provided with a first lifting lantern ring, the inner wall of one side of the first lifting lantern ring is movably penetrated by threads to be provided with a first fastening screw, the outer wall of the other side of the first lifting lantern ring is provided with a mounting rod, the outer side of the mounting rod is movably provided with a movable lantern ring, the top wall of the movable lantern ring is movably penetrated by threads to be provided with a detachable second fastening screw, one end of the movable lantern ring is provided with a supporting ring, and the outer side of the top of the bottom plate is provided with a shielding chamber. According to the utility model, the anti-slip pad, the lower clamping ring and the upper clamping ring are arranged, the lower clamping ring and the upper clamping ring are closed to form a supporting circular ring, and the inner sides of the lower clamping ring and the upper clamping ring are used for fastening the mice with the detected inner sides through the anti-slip pad, so that the mice are prevented from moving in the testing process to influence the shooting of the pupils of the mice.

Description

Pupil measuring device

Technical Field

The utility model relates to the technical field of pupil measurement, in particular to a pupil measurement device.

Background

There are a variety of commercially available devices for recording patient eye movements and analyzing pupil size changes, and such devices are very rare in pupil measurements in small animals. This increases the difficulty of developing animal experiments. Since small animals do not have strong compliance like patients, how to secure the head becomes a tricky problem.

The pupil measuring device in the prior art has the following defects:

1. patent document CN215457903U discloses a pupil measuring device, "comprising a pupil pen and a holder: the pupil pen comprises a shell, a through hole and two mounting holes are formed in the side wall of the shell, a battery and a microprocessor which are electrically connected are arranged in the shell, the microprocessor is electrically connected with a display screen and a plurality of button switches, the display screen and the button switches are arranged on the outer wall of the shell, and a measuring mechanism is further arranged in the shell; the support includes the sleeve, has seted up first hole along length direction on the sleeve, and the slip is provided with the slide bar in the sleeve, and slide bar one end stretches out sleeve and fixedly connected with alignment jig, and the shell slides and sets up on the alignment jig, still fixedly on the slide bar is provided with the light source lamp, and the light source lamp passes first hole. The pupil measuring device provided by the utility model has the advantages that the pupil diameter is determined by adjusting the angle of the light rays emitted by the positioning lamp and calculating the angle by the microprocessor, and the pupil diameter is displayed on the display screen, so that the obtained result has higher precision compared with the pupil diameter obtained by comparing with a pupil ruler "

However, in the above-mentioned publication, the pupil measuring device is suitable for human, and in the process of measurement, the small animal has weak compliance, so that the small animal head is easy to move, the pupil of the small animal is inconvenient to shoot, and the situation of difficulty in shooting occurs;

2. the existing animal pupil detection device lacks a shielding structure, so that the pupil is easily influenced by the outside in the early test process of small animals, changes, and causes inaccurate shooting;

3. the existing pupil detection structure lacks an adjusting structure, so that the angle of a camera is inconvenient to adjust by a inspector, and the shooting quality is guaranteed.

Disclosure of Invention

The present utility model is directed to a pupil measuring device, which solves the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pupil measuring device, includes bottom plate and first support column, first support column is installed at the top of bottom plate, the outside movable mounting of first support column has first lift lantern ring, the one side inner wall of first lift lantern ring is through screw thread movable run-through install first fastening screw, the installation pole is installed to the opposite side outer wall of first lift lantern ring, the outside movable mounting of installation pole has movable lantern ring, the roof of movable lantern ring is through screw thread movable run-through install detachable second fastening screw, the holding ring is installed to the one end of movable lantern ring, the shield room is installed in the top outside of bottom plate, glass window is installed in the front of shield room.

Preferably, the slide way is installed in the front of shielding room, the inboard movable mounting of slide way has the slider, shielding cloth is installed to the bottom of slider, and shields cloth and be located the place ahead of glass window, two sets of LED lamps are installed to the inboard roof of shielding room.

Preferably, a supporting box is installed at the top of the shielding chamber, a host is installed at the inner side of the supporting box, and a display screen is installed at the top of the supporting box.

Preferably, the inboard movable mounting of support ring has first support horizontal pole, the connecting piece is installed to the front end of first support horizontal pole, fixed cross plate is installed to the front end of connecting piece, the snap ring is installed down to the front end of fixed cross plate, the top of snap ring has last snap ring through hinge swing joint down, and the slipmat is all installed to the inboard of snap ring and last snap ring down, the control handle is installed to the front wall of going up the snap ring, movable cross plate is installed to the back wall of going up the snap ring, detachable first connecting screw is installed through the screw activity of screw activity through the inboard of movable cross plate, and the bottom of first connecting screw runs through the inboard of fixed cross plate through the screw.

Preferably, the second support column is installed at the top of bottom plate, the outside movable mounting of second support column has the second lift lantern ring, the screw thread seat is installed to one side of second lift lantern ring, the inboard of screw thread seat is through screw thread movable mounting third fastening screw, and third fastening screw runs through the inboard of second lift lantern ring, the spacing lantern ring is installed at the top of second lift lantern ring, the top of spacing lantern ring is through screw thread movable mounting detachable fourth fastening screw.

Preferably, the second support cross rod is movably arranged on the inner side of the limit lantern ring, the second connecting screw rod is movably arranged on the inner side of the second support cross rod in a penetrating manner through threads, two groups of clamping plates are movably connected on the outer side of the second connecting screw rod and located above and below the second support cross rod, the connecting frames are arranged at the front ends of the two groups of clamping plates, the movable bearings are movably arranged on the inner sides of the connecting frames, and the pupil cameras are arranged on the inner sides of the movable bearings.

Preferably, the outside of second support column is installed the installation lantern ring, the one side inner wall of installation lantern ring is installed detachable fifth fastening screw through the screw thread, the light is installed to the opposite side of installation lantern ring.

Preferably, one side of the shielding room is movably connected with a door body through a hinge, a handle is movably arranged on one side of the door body, and a controller is arranged on the other side of the shielding room.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the anti-slip pad, the lower clamping ring and the upper clamping ring are arranged, the lower clamping ring and the upper clamping ring are closed to form a supporting circular ring, the inner sides of the lower clamping ring and the upper clamping ring are used for fastening the inner side detected mice through the anti-slip pad, the phenomenon that the mice are movable to influence the shooting of the pupils of the mice in the testing process is avoided, the movable penetrating plate supports the first connecting screw rod on the inner side, the inner side of the movable penetrating plate is connected to the fixed penetrating plate through the first connecting screw rod, the stability of the movable penetrating plate is ensured, the connection tightness of the lower clamping ring and the upper clamping ring is ensured, and the stability of the heads of the mice is ensured.

2. According to the utility model, the shielding chamber is arranged, the door body is supported and connected through the hinge, when the door body is closed by a user during measurement, the shielding chamber is in a closed space, then pupil measurement personnel pulls the shielding cloth to stretch, the shielding cloth stretches to drive the sliding block at the top to move, the sliding block is movably arranged at the inner side of the sliding way, the sliding way is fixedly arranged at the front surface of the shielding chamber, the stability of the sliding way is ensured, the shielding cloth shields light, the shielding chamber is in a dim environment, the shielding chamber is a closed dim space, good shielding effect on external sound and light is realized, interference of external environment factors on pupil change is reduced, and definition of photographed pupils is ensured.

3. According to the utility model, the connecting frame, the movable bearing and the pupil camera are arranged, the second supporting cross rod supports the clamping plate at the front end, the second supporting cross rod supports the clamping plate through the second connecting screw rod, the stability of the clamping plate is ensured, the clamping plate is fixed to the connecting frame at the front end, the stability of the connecting frame is ensured, the connecting frame supports the pupil camera through the movable bearing, a user can adjust the angles of the movable bearing and the pupil camera, the adjustment of equipment according to pupil positions of different mice is realized, and the shooting quality is ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic perspective view of a shielding chamber according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a shielding chamber according to the present utility model;

FIG. 4 is a schematic view of a second support column according to the present utility model;

FIG. 5 is a schematic view of a second support column according to the present utility model;

FIG. 6 is a schematic view of the lower snap ring structure of the present utility model;

FIG. 7 is a schematic view of a first lifting collar according to the present utility model;

FIG. 8 is a schematic view of a connector structure according to the present utility model;

FIG. 9 is a graph showing the relationship between pupil diameter and illumination of mice according to the present utility model.

In the figure: 1. a shielding chamber; 2. an LED lamp; 3. a glazing; 4. a slideway; 5. a slide block; 6. a shielding cloth; 7. a door body; 8. a controller; 9. a bottom plate; 10. a first support column; 11. a first lifting collar; 12. a first fastening screw; 13. a mounting rod; 14. a movable collar; 15. a support ring; 16. a second fastening screw; 17. a first support rail; 18. a connecting piece; 19. a lower snap ring; 20. a clamping ring is arranged; 21. an anti-slip pad; 22. a control handle; 23. a movable penetrating plate; 24. a first connecting screw; 25. a second support column; 26. a second lifting collar; 27. a screw seat; 28. a third fastening screw; 29. a limit collar; 30. a clamping plate; 31. a second connecting screw; 32. a connecting frame; 33. a movable bearing; 34. pupil camera; 35. installing a lantern ring; 36. a fifth fastening screw; 37. a lighting lamp; 38. a fourth fastening screw; 39. a handle; 40. a supporting box; 41. a host; 42. a display screen; 43. fixing the penetrating plate; 44. and a second support rail.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, an embodiment of the present utility model provides: the pupil measuring device comprises a bottom plate 9 and a first support column 10, a shielding chamber 1 is arranged on the outer side of the top of the bottom plate 9, a glass window 3 is arranged on the front side of the shielding chamber 1, a slide way 4 is arranged on the front side of the shielding chamber 1, a sliding block 5 is movably arranged on the inner side of the slide way 4, a shielding cloth 6 is arranged at the bottom of the sliding block 5 and positioned in front of the glass window 3, two groups of LED lamps 2 are arranged on the top wall of the inner side of the shielding chamber 1, one side of the shielding chamber 1 is movably connected with a door body 7 through a hinge, a handle 39 is movably arranged on one side of the door body 7, a controller 8 is arranged on the other side of the shielding chamber 1, the shielding chamber 1 covers the outer side of the bottom plate 9, the shielding chamber 1 covers the first support column 10 and a second support column 25 inside, the shielding chamber 1 is connected with the door body 7 through a hinge, during measurement, a user closes the door 7, the shielding chamber 1 is in a closed space, then pupil measurement personnel pulls the shielding cloth 6 to stretch, the shielding cloth 6 stretches to drive the sliding block 5 at the top to move, the sliding block 5 is movably mounted on the inner side of the sliding rail 4, the sliding rail 4 is fixedly mounted on the front surface of the shielding chamber 1, the stability of the sliding rail 4 is guaranteed, the shielding cloth 6 shields light to enable the shielding chamber 1 to be in a dim environment, the shielding chamber 1 is a closed dim space, good shielding effect on external sound and light is achieved, interference of external environment factors on pupil change is reduced, stability is guaranteed after the shielding cloth 6 is unfolded, after measurement is completed, the user can recycle the unfolded shielding cloth 6, and observe the condition of a measured mouse inside the shielding chamber 1 through the glass window 3.

The top of bottom plate 9 installs first support column 10, the outside movable mounting of first support column 10 has first lift lantern ring 11, and bottom plate 9 is fixed to the first support column 10 at top, guarantees that first support column 10 keeps stable, makes things convenient for first support column 10 to the first lift lantern ring 11 spacing in outside, the one side inner wall of first lift lantern ring 11 is through the movable mounting of screw thread having first fastening screw 12, and the user runs through the inboard of first lift lantern ring 11 with first fastening screw 12 for first fastening screw 12 top is on the one side outer wall of first support column 10, fastens first lift lantern ring 11, guarantees the stability of first lift lantern ring 11, the opposite side outer wall of first lift lantern ring 11 installs installation pole 13, the outside movable mounting of installation pole 13 has movable lantern ring 14, the roof of movable lantern ring 14 is through the movable mounting of screw thread having detachable second fastening screw 16, the one end of movable lantern ring 14 installs holding ring 15, and first lift lantern ring 11 carries out the fixation to installation pole 13, guarantees that installation pole 13 can steadily move, and the movable mounting pole 13 can carry out the fastening screw 16 to the movable mounting pole 14, then the movable support ring 16 makes the movable support ring 14 carry out the stability to the movable support ring 16, makes movable support ring 16 the inside movable support ring 16, makes the movable support ring 16 carry out the movable support ring 16, makes the movable support ring 16 the movable support rod 13 the 13.

The inner side of the support ring 15 is movably provided with a first support cross rod 17, the front end of the first support cross rod 17 is provided with a connecting piece 18, the front end of the connecting piece 18 is provided with a fixed penetrating plate 43, the front end of the fixed penetrating plate 43 is provided with a lower clamping ring 19, the top of the lower clamping ring 19 is movably connected with an upper clamping ring 20 through a hinge, the inner sides of the lower clamping ring 19 and the upper clamping ring 20 are both provided with anti-skid pads 21, the front wall of the upper clamping ring 20 is provided with a control handle 22, the rear wall of the upper clamping ring 20 is provided with a movable penetrating plate 23, the inner side of the movable penetrating plate 23 is movably penetrated by threads and is provided with a detachable first connecting screw 24, the bottom end of the first connecting screw 24 penetrates through the inner side of the fixed penetrating plate 43 through threads, the first support cross rod 17 supports the first support cross rod 17, the connecting piece 18 of convenient first support horizontal pole 17 to the front end is fixed, the connecting piece 18 is fixed to fixed cross plate 43, the lower snap ring 19 of convenient fixed cross plate 43 to the front end is fixed, lower snap ring 19 and last snap ring 20 swing joint, lower snap ring 19 and last snap ring 20 closure form a support ring, the inboard of lower snap ring 19 and last snap ring 20 is fastened the inboard by the mouse that detects through slipmat 21, avoid the mouse to take place the activity at the in-process of test and influence the shooting of mouse pupil, movable cross plate 23 supports the first connecting screw 24 of inboard, movable cross plate 23's inboard is connected on fixed cross plate 43 through first connecting screw 24, guarantee movable cross plate 23's stability, guarantee the compactness of lower snap ring 19 and last snap ring 20 connection, guarantee that the mouse head can keep stable.

The supporting box 40 is installed at the top of shield room 1, host computer 41 is installed to the inboard of supporting box 40, display screen 42 is installed at the top of supporting box 40, the supporting box 40 at shield room 1 is fixed at the top, guarantee the stability of supporting box 40, supporting box 40 is fixed to inboard host computer 41, guarantee host computer 41 can steady operation, supporting box 40 is fixed to display screen 42 at top, guarantee the stability of display screen 42, after host computer 41 received the image that pupil camera 34 gathered, analyze the image, then show the picture that will analyze through display screen 42, make things convenient for pupil measurement personnel to watch the image, the open source software that uses deep learning-based animal no mark posture estimation of deep labcut is installed in the host computer 41 can realize carrying out real-time data acquisition to the pupil size variation condition of mouse.

The second support column 25 is arranged at the top of the bottom plate 9, the bottom plate 9 fixes the second support column 25, the stability of the second support column 25 is ensured, the second lifting lantern ring 26 is movably arranged at the outer side of the second support column 25, a thread seat 27 is arranged at one side of the second lifting lantern ring 26, a third fastening screw 28 is movably arranged at the inner side of the thread seat 27 through threads, the third fastening screw 28 penetrates through the inner side of the second lifting lantern ring 26, a user sleeves the second lifting lantern ring 26 at the outer side of the second support column 25, then adjusts the angle of the second lifting lantern ring 26, the third fastening screw 28 penetrates through the inner side of the second lifting lantern ring 26, the third fastening screw 28 is arranged at the outer side of the second support column 25, the stability of the second lifting lantern ring 26 is ensured, the second lifting lantern ring 26 is convenient to fix the limiting lantern ring 29, the limiting lantern ring 29 is arranged at the top of the second lifting lantern ring 26, the top of the limit collar 29 is movably provided with a detachable fourth fastening screw 38 through threads, the limit collar 29 limits and supports the second supporting cross rod 44 on the inner side, the limit collar 29 fixes the second supporting cross rod 44 through the fourth fastening screw 38, the stability of the second supporting cross rod 44 is ensured, the inner side of the limit collar 29 is movably provided with the second supporting cross rod 44, the inner side of the second supporting cross rod 44 is movably provided with a second connecting screw 31 through threads, the outer side of the second connecting screw 31 is movably connected with two groups of clamping plates 30, the two groups of clamping plates 30 are positioned above and below the second supporting cross rod 44, the front ends of the two groups of clamping plates 30 are provided with connecting frames 32, the inner side of the connecting frames 32 is movably provided with movable bearings 33, the inner side of each movable bearing 33 is provided with a pupil camera 34, the second support cross bar 44 supports the splint 30 of front end, and the second support cross bar 44 supports splint 30 through second connecting screw 31, guarantees splint 30's stability, and splint 30 is fixed to the link 32 of front end, guarantees link 32's stability, and link 32 supports pupil camera 34 through movable bearing 33, and the angle of movable bearing 33 and pupil camera 34 can be adjusted to the user, realizes adjusting the pupil position of equipment according to different mice, guarantees shooting quality.

The installation lantern ring 35 is installed in the outside of second support column 25, install the first fastening screw 36 of detachable through the screw thread to the one side inner wall of installation lantern ring 35, the light 37 is installed to the opposite side of installation lantern ring 35, and the outside of second support column 25 is fixed to installation lantern ring 35 through the first fastening screw 36, guarantees the stability of installation lantern ring 35, and installation lantern ring 35 is fixed to the illumination lamp 37, guarantees that light 37 can steadily send out light, and light 37 projects the light beam in the eyes of mouse, realizes that pupil camera 34 can shoot the state of mouse pupil in dim environment and the state in the environment that light shined.

Working principle: the user clamps the mice on the inner sides of the lower clamping ring 19 and the upper clamping ring 20 and restrains the body of the mice through the anti-slip pad 21, so that the mice are shot on the premise of not hurting the mice, after the mice are fixed, the user adjusts the height pair of the second lifting lantern ring 26 according to the condition of the mice, so that the height of the pupil camera 34 is adjusted, the pupil camera 34 is aligned with the pupils of the mice, then the door body 7 is closed, the shielding chamber 1 is positioned in a closed space, pupil measuring staff pulls the shielding cloth 6 to stretch, the shielding cloth 6 stretches to drive the sliding block 5 at the top to move, the sliding block 5 is movably arranged on the inner side of the sliding way 4, the sliding way 4 is fixedly arranged on the front surface of the shielding chamber 1, the stability of the sliding way 4 is ensured, the shielding cloth 6 shields light to enable the shielding chamber 1 to be in a dim environment, the shielding chamber 1 is a closed dim space, good shielding effect on external sound and light is achieved, interference of external environment factors on pupil change is reduced, a mouse can calm down in the dim environment, the pupil is in a normal state, pupil measuring staff controls the pupil camera 34 to shoot the pupil of the mouse through the controller 8, after shooting in the dim environment is completed, a user opens the illuminating lamp 37 to project light beams into eyes of the mouse, states of the pupil in the bright environment are achieved, and states of the pupil in the dim environment and states of the pupil in the light irradiation are achieved by the pupil camera 34.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Pupil measuring device, including bottom plate (9) and first support column (10), its characterized in that: the top of bottom plate (9) is installed first support column (10), the outside movable mounting of first support column (10) has first lift lantern ring (11), first fastening screw (12) are installed through screw activity to one side inner wall of first lift lantern ring (11), installation pole (13) are installed to the opposite side outer wall of first lift lantern ring (11), the outside movable mounting of installation pole (13) has movable lantern ring (14), detachable second fastening screw (16) are installed through screw activity penetration to the roof of movable lantern ring (14), support ring (15) are installed to the one end of movable lantern ring (14), shield room (1) are installed in the top outside of bottom plate (9), glass window (3) are installed in the front of shield room (1).

2. A pupil measuring device as claimed in claim 1, characterized in that: the front of shield room (1) is installed slide (4), the inboard movable mounting of slide (4) has slider (5), shielding cloth (6) are installed to the bottom of slider (5), and shielding cloth (6) are located the place ahead of glass window (3), two sets of LED lamps (2) are installed to the inboard roof of shield room (1).

3. A pupil measuring device as claimed in claim 1, characterized in that: the top of shield room (1) is installed supporting box (40), host computer (41) are installed to the inboard of supporting box (40), display screen (42) are installed at the top of supporting box (40).

4. A pupil measuring device as claimed in claim 1, characterized in that: the utility model discloses a support ring, including support ring (15), connecting piece (18) are installed to the inboard movable mounting of support ring (15), connecting piece (18) are installed to the front end of first support cross bar (17), fixed cross plate (43) are installed to the front end of connecting piece (18), snap ring (19) are installed to the front end of fixed cross plate (43), snap ring (20) are gone up through hinge swing joint in the top of snap ring (19), and slipmat (21) are all installed to the inboard of snap ring (19) down and last snap ring (20), control handle (22) are installed to the front wall of last snap ring (20), movable cross plate (23) are installed to the back wall of last snap ring (20), detachable first connecting screw (24) are installed through the screw movable penetration in the inboard of movable cross plate (23), and the inboard of fixed cross plate (43) is run through the screw thread to the bottom of first connecting screw (24).

5. A pupil measuring device as claimed in claim 1, characterized in that: the top of bottom plate (9) is installed second support column (25), the outside movable mounting of second support column (25) has second lift lantern ring (26), screw thread seat (27) are installed to one side of second lift lantern ring (26), the inboard of screw thread seat (27) is through screw thread movable mounting third fastening screw (28), and third fastening screw (28) run through the inboard of second lift lantern ring (26), spacing lantern ring (29) are installed at the top of second lift lantern ring (26), the top of spacing lantern ring (29) is through screw thread movable mounting detachable fourth fastening screw (38).

6. A pupil measuring device as claimed in claim 5, characterized in that: the utility model discloses a pupil camera (34) is installed to the inboard movable mounting of spacing lantern ring (29), second support horizontal pole (44), the inboard of second support horizontal pole (44) is through screw thread movable mounting second connecting screw (31), the outside swing joint of second connecting screw (31) has two sets of splint (30), and two sets of splint (30) are located the top and the below of second support horizontal pole (44), two sets of link (32) are installed to the front end of splint (30), the inboard movable mounting of link (32) has movable bearing (33), pupil camera (34) are installed to the inboard of movable bearing (33).

7. A pupil measuring device as claimed in claim 5, characterized in that: the outside of second support column (25) is installed and is installed lantern ring (35), install one side inner wall of lantern ring (35) and install detachable fifth fastening screw (36) through the screw thread, light (37) are installed to the opposite side of lantern ring (35).

8. A pupil measuring device as claimed in claim 1, characterized in that: one side of the shielding room (1) is movably connected with a door body (7) through a hinge, one side of the door body (7) is movably provided with a handle (39), and the other side of the shielding room (1) is provided with a controller (8).