CN215778008U

CN215778008U - A automatically regulated interpupillary distance device for slit lamp

Info

Publication number: CN215778008U
Application number: CN202121829634.XU
Authority: CN
Inventors: 方冬; 张少冲; 陈璐; 程晓容
Original assignee: SHENZHEN OPHTHALMOLOGY HOSPITAL
Current assignee: SHENZHEN OPHTHALMOLOGY HOSPITAL
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-02-11
Anticipated expiration: 2031-08-06

Abstract

The utility model relates to a pupil distance automatic adjusting device for a slit lamp, which comprises: the device comprises a shell, a lens group, a driving assembly, an image distance measuring assembly and a processor; the lens group is arranged in the shell; the driving assembly is connected with the lens group to drive the lens group to be combined or separated; the image ranging assembly comprises a camera element and an identification element; the image pickup element is arranged in the housing; the image pickup element is electrically connected with the identification element; the driving component and the identification element are both electrically connected with the processor. This scheme of adoption, medical staff when using, image range finding subassembly shoot medical staff face and discernment analysis interpupillary distance, and the treater is according to the analysis result, and the control drive assembly of sending signal drives lens group and removes for interval adaptation interpupillary distance between the lens group realizes the interpupillary distance of intelligent automatically regulated lens group, need not the interval of manual regulation lens group, and convenient to use reduces the time that occupies of adjusting among the ophthalmology inspection process, improves inspection efficiency.

Description

A automatically regulated interpupillary distance device for slit lamp

Technical Field

The utility model relates to the field of medical instruments, in particular to a pupil distance automatic adjusting device for a slit lamp.

Background

A slit lamp, also called a slit lamp microscope, is an essential important instrument for ophthalmologic examination. The slit-lamp microscope is generally composed of an illumination system and a microscope assembly, which can not only clearly observe superficial lesions on the surface of a patient, but also clearly visualize lesions in deep tissues through an optical section.

Before the slit lamp is used, the distance between the lens groups (namely the interpupillary distance) needs to be adjusted to adapt to the interpupillary distance of medical staff. However, when the pupil distance of the existing slit lamp is adjusted, manual adjustment is mostly adopted, the adjusting time is long, the slit lamp needs to be adjusted when being used every time, the slit lamp is complex to use, and the occupied checking time is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the existing slit lamp needs to be manually adjusted every time the slit lamp is used, and provides an automatic interpupillary distance adjusting device for the slit lamp aiming at the defects in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

provided is an automatic interpupillary distance adjusting device for a slit lamp, comprising: the device comprises a shell, a lens group, a driving assembly, an image distance measuring assembly and a processor; the lens group is arranged in the shell; the driving assembly is connected with the lens group to drive the lens group to be combined or separated; the image ranging assembly comprises a camera element and an identification element; the image pickup element is disposed in the housing; the image pickup element is electrically connected with the identification element; the driving component and the identification element are both electrically connected with the processor.

Further, the camera element comprises a camera and a memory; the camera is respectively electrically connected with the memory and the processor.

Further, the recognition element comprises an image recognition unit for calculating the interpupillary distance in the image; the image recognition unit is electrically connected with the memory and the processor respectively.

Further, the driving assembly comprises a screw and a motor which are arranged along the center line of the shell in a bilateral symmetry manner; the shell is internally provided with an installation position for installing a screw; the head end of the screw penetrates through the side wall of the shell and is connected with the motor arranged on the outer side wall of the shell; the tail end of the screw is arranged on the mounting position; the motor is electrically connected with the processor.

Furthermore, a moving block is arranged at the back of the lens group; the screw rod penetrates through the moving block and is in threaded connection with the moving block.

Furthermore, a first sliding hole is formed in the end wall of the shell; the back of the shell is provided with a second sliding hole; a first sliding block embedded in the first sliding hole is arranged at the end part of the lens group; and a second sliding block embedded in the second sliding hole is arranged on the moving block.

Furthermore, an infrared distance measuring sensor is arranged at the back of the lens group; a receiver corresponding to the infrared distance measuring sensor is arranged on the inner side wall of the shell; the infrared distance measuring sensor is electrically connected with the processor.

Furthermore, a movable Hall switch is arranged on the movable block; a fixed Hall switch is arranged on the inner wall of the shell; the fixed Hall switch is electrically connected with the processor.

Further, a mounting frame is arranged on the side wall of the shell; the motor is arranged on the mounting frame.

Furthermore, a push-pull groove is formed in the bottom of the shell; and a supporting plate is arranged in the push-pull groove.

The utility model has the beneficial effects that: set up image range finding subassembly, when medical staff uses, image range finding subassembly shoots medical staff face and discernment analysis interpupillary distance, and the treater is according to the analysis result, and signaling control drive assembly drives lens group and removes for interval adaptation interpupillary distance between the lens group realizes the interpupillary distance of intelligent automatically regulated lens group, need not the interval of manual regulation lens group, and convenient to use reduces the time that occupies of adjusting in the ophthalmology inspection process, improves the efficiency of examination.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:

fig. 1 is a schematic structural diagram of an automatic interpupillary distance adjusting device for a slit lamp in an embodiment of the utility model;

FIG. 2 is a schematic cross-sectional view taken at A-A of FIG. 1 in an embodiment of the present invention;

FIG. 3 is an enlarged schematic view at C of FIG. 2 according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken at B-B of FIG. 1 in an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view taken at D-D of FIG. 4 in an embodiment of the present invention;

fig. 6 is a circuit connection block diagram of an automatic interpupillary distance adjusting device for a slit lamp in an embodiment of the utility model.

In the figure, 1, a housing; 2. a lens group; 5. a processor; 11. an installation position; 12. a first slide hole; 13. a second slide hole; 14. a receiver; 15. fixing a Hall switch; 16. a push-pull groove; 17. a support plate; 21. a moving block; 22. a first slider; 23. a second slider; 24. an infrared ranging sensor; 25. moving the Hall switch; 31. a screw; 32. a motor; 33. a mounting frame; 41. a camera; 42. a memory; 43. an image recognition unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.

As shown in fig. 1 to 6, an apparatus for automatically adjusting interpupillary distance for a slit lamp according to a preferred embodiment of the present invention includes: the device comprises a shell 1, a lens group 2, a driving assembly, an image distance measuring assembly and a processor 5; the lens group 2 is arranged in the shell 1, and the lens group 2 is positioned at the outer side of the image distance measuring component; the driving component is connected with the lens group 2 to drive the lens group 2 to merge or separate; the image ranging assembly comprises a camera element and an identification element; the image pickup element is provided in the housing 1; the image pickup element is electrically connected with the identification element; the drive assembly and the identification element are both electrically connected to the processor 5.

When medical staff used, the face was close to the department of watching of lens group 2, and image range finding subassembly shoots medical staff face and discernment analysis interpupillary distance, and treater 5 is according to the analysis result, and signaling control drive assembly drives lens group 2 and removes for interval adaptation interpupillary distance between the lens group 2 realizes the interpupillary distance of intelligent automatically regulated lens group 2, need not the interval of manually regulated lens group 2, and convenient to use reduces the time that the regulation took in the ophthalmology inspection process, improves the checking efficiency.

In a further embodiment, the image pickup element includes a camera 41 and a memory 42; the cameras 41 are electrically connected to the memory 42 and the processor 5, respectively.

Preferably, the recognition element comprises an image recognition unit 43 for calculating the interpupillary distance in the image; the image recognition units 43 are electrically connected to the memory 42 and the processor 5, respectively.

The processor 5 drives the camera 41 to shoot the face of the user, then the face is conveyed to the memory 42 to be stored, the image recognition unit 43 calls the stored face data from the memory 42 to perform image recognition and analyze the interpupillary distance of the user. The image recognition unit 43 employs existing image recognition software.

Specifically, the user face image taken with the camera is mixed with a background size board which is 130mm wide and divided into 130 columns in the width direction, each of which is 1mm wide. The user's facial image is centered on the background size board when taken. For example, the width of the face of the user is 110mm, the interpupillary distance is 60mm, and according to the size, the distance between the pupils of the two eyes and the edge of the board of the background size is identified and fed back to the processor 5, and the processor 5 controls the driving assembly to drive the lens group 2 to move by the corresponding distance.

In the above embodiment, the memory 42, the image recognition unit 43 and the processor 5 are all externally arranged outside the housing 1.

In a further embodiment, the driving assembly comprises a screw 31 and a motor 32 which are arranged symmetrically left and right along the center line of the housing 1; a mounting position 11 for mounting the screw 31 is arranged in the shell 1; the head end of the screw 31 passes through the side wall of the shell 1 and is connected with a motor 32 arranged on the outer side wall of the shell 1; the tail end of the screw rod 31 is arranged on the mounting position 11; the motor 32 is electrically connected to the processor 5.

Preferably, the back of the lens group 2 is provided with a moving block 21; the screw 31 passes through the moving block 21 and is screwed with the moving block 21.

When the screw 31 is screwed to the moving block 21 and the motor 32 rotates the screw 31, the moving block 21 reciprocates along the screw 31. Adopt the screw rod 31 and the drive mode of movable block 21, can adjust the position of lens group more accurately for distance adaptation user's interpupillary distance between the lens group.

In a further embodiment, the end wall of the housing 1 is provided with a first slide hole 12; the back of the shell 1 is provided with a second sliding hole 13; the end of the lens group 2 is provided with a first slide block 22 embedded in the first slide hole 12; the moving block 21 is provided with a second slider 23 fitted in the second slide hole 13.

The restriction of the lens group 2 in the directions of the x axis, the y axis and the z axis is realized through the cooperation of the first slide hole 12 and the first slide block 22 and the cooperation of the second slide hole 13 and the second slide block 23, so that the lens group 2 can keep linear reciprocating motion when moving, and the position of the lens group 2 does not shift in the moving process.

In a further embodiment, the back of the lens group 2 is provided with an infrared distance measuring sensor 24; a receiver 14 corresponding to the infrared distance measuring sensor 24 is arranged on the inner side wall of the shell 1; the infrared ranging sensor 24 is electrically connected to the processor 5.

The image recognition unit 43 recognizes the distance between the pupils of the two eyes and the edge of the background size plate, and feeds the distance back to the processor 5, the processor 5 controls the motor 32 to drive the lens group 2 to move, wherein when the infrared distance measuring sensor 24 detects that the distance between the movement of the lens group 2 and the distance between the pupils of the two eyes and the edge of the background size plate correspond to each other, a feedback signal is sent to the processor 5, the processor 5 controls the motor 32 to stop driving, and the pupil distance of the lens group 2 is adjusted.

In a further embodiment, a moving hall switch 25 is provided on the moving block 21; a fixed Hall switch 15 is arranged on the inner wall of the shell 1; the stationary hall switch 15 is electrically connected to the processor 5.

The lens group 2 is restored to the home position after each use, i.e., the distance of the lens group 2 in the home position is 0. After use, the fixed hall switch 15 is started, the motor 32 drives the lens group 2 to move in the direction close to the fixed hall switch 15 in reverse, and when the fixed hall switch 15 detects the moving hall switch 25, the motor 32 stops working, and the lens group 2 returns to the original position.

In a further embodiment, a mounting frame 33 is provided on the side wall of the housing 1; the motor 32 is disposed on the mounting bracket 33.

In a further embodiment, the bottom of the housing 1 is provided with a push-pull groove 16; a supporting plate 17 is arranged in the push-pull groove 16. When the device is used, the supporting plate 17 can be pulled out to support the chin of a user, so that the camera 41 can be aimed at the face of the user to shoot and recognize when the device is used by the user.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides an automatically regulated interpupillary distance device for slit lamp which characterized in that: the method comprises the following steps: the device comprises a shell, a lens group, a driving assembly, an image distance measuring assembly and a processor; the lens group is arranged in the shell; the driving assembly is connected with the lens group to drive the lens group to be combined or separated; the image ranging assembly comprises a camera element and an identification element; the image pickup element is disposed in the housing; the image pickup element is electrically connected with the identification element; the driving component and the identification element are both electrically connected with the processor.

2. The device for automatically adjusting interpupillary distance of a slit lamp as claimed in claim 1, wherein said camera element comprises a camera and a memory; the camera is respectively electrically connected with the memory and the processor.

3. The automatic pupil distance adjusting device for slit lamps as claimed in claim 2, wherein the identification element comprises an image identification unit for calculating the pupil distance in the image; the image recognition unit is electrically connected with the memory and the processor respectively.

4. The device for automatically adjusting interpupillary distance of a slit lamp as claimed in claim 1, wherein said driving assembly comprises a screw and a motor symmetrically arranged left and right along the center line of said housing; the shell is internally provided with an installation position for installing a screw; the head end of the screw penetrates through the side wall of the shell and is connected with the motor arranged on the outer side wall of the shell; the tail end of the screw is arranged on the mounting position; the motor is electrically connected with the processor.

5. The device for automatically adjusting interpupillary distance of a slit lamp as claimed in claim 4, wherein a moving block is arranged at the back of the lens group; the screw rod penetrates through the moving block and is in threaded connection with the moving block.

6. The device for automatically adjusting interpupillary distance of a slit lamp as claimed in claim 5, wherein said end wall of said housing is provided with a first sliding hole; the back of the shell is provided with a second sliding hole; a first sliding block embedded in the first sliding hole is arranged at the end part of the lens group; and a second sliding block embedded in the second sliding hole is arranged on the moving block.

7. The device for automatically adjusting interpupillary distance of a slit lamp as claimed in claim 1, wherein an infrared distance measuring sensor is arranged at the back of the lens group; a receiver corresponding to the infrared distance measuring sensor is arranged on the inner side wall of the shell; the infrared distance measuring sensor is electrically connected with the processor.

8. The device for automatically adjusting interpupillary distance of a slit lamp as claimed in claim 5, wherein a moving Hall switch is arranged on the moving block; a fixed Hall switch is arranged on the inner wall of the shell; the fixed Hall switch is electrically connected with the processor.

9. The device for automatically adjusting interpupillary distance of a slit lamp as claimed in claim 4, wherein a mounting rack is provided on the side wall of the housing; the motor is arranged on the mounting frame.

10. The device for automatically adjusting interpupillary distance of a slit lamp as claimed in claim 1, wherein a push-pull groove is formed at the bottom of the shell; and a supporting plate is arranged in the push-pull groove.