CN111986546A

CN111986546A - Double-hole eye simulation device

Info

Publication number: CN111986546A
Application number: CN202010881734.0A
Authority: CN
Inventors: 周路坦; 吕天斌; 侯园园; 刘意; 杨林
Original assignee: Zhengzhou Railway Vocational and Technical College
Current assignee: Zhengzhou Railway Vocational and Technical College
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2020-11-24

Abstract

The invention discloses a double-hole eye simulation device which comprises a first barrel, a plurality of second barrels arranged side by side with the first barrel, and a third barrel connected between the first barrel and the second barrel, wherein a convex lens is arranged in the first barrel, a fourth barrel is arranged on the first barrel, the bottom of the fourth barrel is provided with a fundus, light through holes are formed in the end parts of the first barrel and the second barrel, a first reflector and a second reflector are arranged in the first barrel and the second barrel, rotating adjusting plates are arranged in the first barrel and the second barrel, and light through holes with different sizes are formed in the adjusting plates. The light rays in the first cylinder body cannot be crossed and have no interference; also can be used for a plurality of beginners to observe and study, and has good learning effect.

Description

Double-hole eye simulation device

Technical Field

The invention belongs to the technical field of optometry and optometry, and particularly relates to a double-hole eye simulation device.

Background

The simulated eye is an instrument specially used for examining the shadow, the shadow situation is similar to the real eye, and when a beginner learns to examine the shadow, the simulated eye is needed to practice.

The simulated eye is provided with a convex lens to replace an eye dioptric system; a lens barrel which can be extended and contracted to change the length and represent different ametropia conditions; an aperture is arranged in front of the convex lens, namely the pupil. The optometrist projects the light beam into the simulated eye by the speculum, reflects the light beam by the fundus of the simulated eye, and then exits from the eye shadow hole of the simulated eye and reaches the eye of the optometrist.

Currently, the chinese granted patent CN102855800B discloses a double-hole simulated eye, which comprises a main body and a half-mirror; the main body is provided with a fundus, a first light through hole and a second light through hole; the shadow detection light enters the main body through the first light through hole and is reflected by the fundus, and then the shadow detection light is divided into two paths of light from the semitransparent mirror to the semi-reflecting mirror, wherein one path of light is emitted from the first light through hole, and the other path of light is emitted from the second light through hole; the optometrist uses the first light through hole to operate the first path, and the bystander uses the second light through hole to observe the first path. However, when the optometrist uses the ophthalmoscope to irradiate the lens barrel, the light of the ophthalmoscope is split into one path through the half-transmitting and half-reflecting mirror and then irradiates from the second light through hole, and then the light reflected from the eyeground is mixed and enters the eyes of the beginner, so that the observation of the beginner is disturbed. And when observing, can only study by a beginner, can not study through the device by more than two beginners, reduced learning efficiency. In addition, the size of the first light through hole and the size of the second light through hole on the device can not be adjusted, eyes with different pupil sizes can not be simulated, and certain limitation is realized.

Disclosure of Invention

Aiming at the problems, the invention provides a double-hole eye simulation device to solve the problems of light interference, low learning efficiency and incapability of adjusting a light through hole in the prior art.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a double-hole eye simulation device is designed, and comprises a first barrel and a plurality of second barrels arranged side by side with the first barrel, wherein a third barrel communicated with the first barrel and the second barrel is arranged between the first barrel and the second barrel, a fourth barrel capable of sliding along the outer wall of the first barrel is arranged at one end of the first barrel, the end part of the fourth barrel is fixed with a fundus oculi, a convex lens is arranged at one end, close to the fourth barrel, in the first barrel, one end, far away from the convex lens, of the first barrel and one end, far away from the fourth barrel, of the second barrel are both provided with light through holes, a first reflector fixed on the inner wall of the first barrel is arranged between the light through holes and the convex lens, the first reflector is positioned on the axis of the third barrel, a second reflector parallel to the first reflector is arranged on the inner wall of the second barrel, and the second reflector is positioned at the intersection of the axis of the third barrel and the axis of the second barrel, the front surfaces of the first reflective mirror and the second reflective mirror are opposite;

the one end that first barrel is close to logical unthreaded hole, the one end that the second barrel is close to logical unthreaded hole all are provided with can the pivoted regulating plate, set up the light trap of equidimension not on the regulating plate, first barrel inner wall and second barrel inner wall lower part are provided with the opening, the regulating plate below is connected with the handle that can follow the opening and stretch out.

Furthermore, the first cylinder and the fourth cylinder are connected through a sliding rail and a sliding groove.

Furthermore, the cross sections of the sliding rail and the sliding groove are rectangular, dovetail-shaped or T-shaped.

Furthermore, the first reflective mirror and the second reflective mirror are connected to the inner wall of the first cylinder and the inner wall of the second cylinder through angle adjusting devices.

Furthermore, the angle adjusting device comprises a connecting rod connected to the back of the first reflector or the back of the second reflector, a first bevel gear is connected to the connecting rod, a rotating shaft extending out of the first barrel or the second barrel is arranged on the inner wall of the first barrel or the second barrel, a second bevel gear is connected to one end of the rotating shaft extending into the first barrel or the second barrel, and the first bevel gear is meshed with the second bevel gear.

Furthermore, a supporting body is arranged at one end, close to the light through hole, of the first cylinder body and one end, close to the light through hole, of the second cylinder body, and a lens slot is formed in the supporting body.

Further, the support body is semi-cylindrical.

Furthermore, a plurality of lens slots are arranged at equal intervals.

Furthermore, the adjusting plate is fan-shaped, the light-transmitting holes are distributed on the adjusting plate in an arc shape, and the lower part of the adjusting plate is hinged to the opening.

Compared with the prior art, the invention has the following beneficial technical effects:

1. according to the invention, an inspector can use the image detection mirror to irradiate the first barrel through the light through hole, the light of the image detection mirror irradiates the eye ground through the convex lens and is reflected by the eye ground, the light irradiates from the light through hole of the first barrel, meanwhile, the first reflector reflects the rigid light to the second reflector again, the rigid light irradiates from the light through hole of the second barrel through the reflection of the second reflector, the irradiated light in the second barrel cannot be crossed, the observation of a beginner is prevented from being interfered, and the observation effect is good.

2. In the invention, a plurality of second cylinders can be arranged side by side, the first cylinder and the second cylinder are communicated by the third cylinder, and the first reflector and the second reflector are arranged between each group of second cylinders and the third cylinder, so that when an inspector uses the film examination mirror to carry out inspection, a plurality of beginners can carry out close-range observation and study by the second cylinders, and the learning efficiency is high; moreover, one of the second cylinder bodies can be used for being provided with the camera, and the camera is displayed by using a screen, so that more beginners can learn and observe the camera.

3. In the invention, the first cylinder and the second cylinder are both provided with the adjusting plates, the adjusting plates are provided with the light holes with different sizes, the adjusting plates are rotated to enable the light holes with different sizes to be overlapped with the light holes, and pupils with different sizes in different age groups are simulated, so that the simulation range of the invention is increased, and the applicability of the invention is improved.

4. In the invention, the angles of the first light-emitting mirror and the second light-emitting mirror can be adjusted through the angle adjusting device, so that the light reflected from the fundus can be irradiated from the light through hole of the second cylinder, and the use reliability of the invention is improved.

5. In the invention, a support body is arranged at one end of the first cylinder body and one end of the second cylinder body, which are close to the light through hole, a plurality of lens slots are arranged on the support body, and different lenses are inserted in the lens slots to display different light bands.

Drawings

FIG. 1 is a schematic structural view of two second cylinders arranged side by side in the present invention;

FIG. 2 is a schematic structural view of three second cylinders arranged side by side in the present invention;

FIG. 3 is a schematic bottom view of the structure of FIG. 1;

FIG. 4 is a front view of the adjusting plate;

fig. 5 is an enlarged view of part i of fig. 1.

In the figure: 1. a first cylinder; 2. a second cylinder; 3. a third cylinder; 4. a fourth cylinder; 5. fundus oculi; 6. a convex lens; 7. a light through hole; 8. a first reflective mirror; 9. a second reflective mirror; 10. an adjusting plate; 11. a light-transmitting hole; 12. a handle; 13. a connecting rod; 14. a first bevel gear; 15. a rotating shaft; 16. a second bevel gear; 17. a support body; 18. a lens slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1-3, the double-hole simulated eye device of the invention comprises a first cylinder 1 and a second cylinder 2 arranged side by side with the first cylinder 1, at least two second cylinders 2 are arranged on the second cylinder 2, fig. 1 and 2 are respectively a structural schematic diagram of two or three second cylinders 2, a third cylinder 3 communicating the first cylinder 1 and the second cylinder 2 is arranged between the first cylinder 1 and the second cylinder 2, the first cylinder 1, the second cylinder 2 and the third cylinder 3 are integrally injection-molded, and a fourth cylinder 4 capable of sliding along the outer wall of the first cylinder 1 is arranged at one end of the first cylinder 1.

Specifically, the first barrel 1 and the fourth barrel 4 are connected through a sliding rail and a sliding groove, the cross sections of the sliding rail and the sliding groove are rectangular, dovetail-shaped or T-shaped, the eye ground 5 is fixed at the end part of the fourth barrel 4, a convex lens 6 is arranged at one end, close to the fourth barrel 4, in the first barrel 1, when the multifunctional eye-catching device is used, the fourth barrel 4 slides along the outer wall of the first barrel 1, and the distance between the convex lens 6 and the eye ground 5 is adjusted to simulate the front-looking, near-sighted and far-sighted states of a patient. As shown in fig. 4, a translatable column is sand-connected below the first cylinder 1 for adjusting the distance between the first cylinder 1 and the inspector.

The one end that convex lens 6 was kept away from to first barrel 1, the one end that fourth barrel 4 was kept away from to second barrel 2 have all been seted up logical unthreaded hole 7, lead to being provided with between unthreaded hole 7 and the convex lens 6 and be fixed in first reflector 8 on 1 inner wall of first barrel, and first reflector 8 is located the axis of third barrel 3. During the installation, add on the lateral wall of first barrel 1 and establish the curb plate that can dismantle, first reflector 8 is installed to the curb plate on, be convenient for install and decide to dismantle the change. The inner wall of the second cylinder 2 is provided with a second reflector 9 parallel to the first reflector 8, and the second reflector 9 is positioned at the intersection of the axis of the third cylinder 3 and the axis of the second cylinder 2.

Specifically, a boss may be installed on the inner wall of the second cylinder 2 to facilitate the position determination of the second reflective mirror 9, and the mirror surfaces of the first reflective mirror 8 and the second reflective mirror 9 are opposite to each other. When the eye speculum is used, a tester uses the speculum to irradiate the first cylinder body 1 through the light through hole 7, the light of the speculum irradiates the eye ground 5 through the convex lens 6, the light is reflected by the eye ground 5, and the light is emitted from the light through hole 7 of the first cylinder body 1 and fed back to the eyes of the tester. Meanwhile, the first reflector 8 reflects the light rays passing through the convex lens 6 to the second reflector 9, and then the light rays are reflected by the second reflector 9 and irradiated from the light through hole 7 of the second barrel 2, the first reflector 8 and the second reflector 9 only reflect the light rays reflected by the eyeground 5, the light rays irradiated by an inspector by using a shadow scope cannot be reflected, the light rays are prevented from being crossed, the observation of a beginner is prevented from being interfered, and the observation effect of the invention is improved. And the examiner is when teaching, and a plurality of second barrel 2 can supply a plurality of beginners to carry out observation and study closely, and learning efficiency is high. In addition, one of the second cylinder bodies 2 can be used for being provided with a camera and displayed by a screen, so that more beginners can learn and observe the camera, and the teaching efficiency of the invention is further improved.

As shown in fig. 4, one end of the first cylinder 1 close to the light through hole 7 and one end of the second cylinder 2 close to the light through hole 7 are both provided with a rotatable adjusting plate 10, and the adjusting plate 10 is provided with light transmission holes 11 with different sizes.

Specifically, the light holes 11 have three different specifications of large size, medium size and small size to simulate pupils of different ages of children, teenagers and the elderly, the simulation range of the invention is enlarged, the applicability of the invention is improved, the lower parts of the inner walls of the first barrel 1 and the second barrel 2 are provided with openings, a handle 12 which can extend out of the openings is connected below the adjusting plate 10, the lower part of the adjusting plate 10 is hinged to the openings through hinged shafts, the adjusting plate is fan-shaped, and the light holes 11 are distributed on the adjusting plate in an arc shape. When the pupil simulator is used, the fan-shaped plate is rotated through the handle 12, the light holes 11 with different sizes are rotated to the light holes 7, and pupils with different sizes are simulated.

In the invention, the first reflective mirror 8 and the second reflective mirror 9 are both connected to the inner wall of the first barrel 1 and the inner wall of the second barrel 2 through the angle adjusting device, and the angle between the first reflective mirror 8 and the axis of the first barrel 1 and the angle between the second reflective mirror 9 and the axis of the second barrel 2 are respectively adjusted by using the angle adjusting device, so that the light reflected from the eyeground 5 can be reflected by the first reflective mirror 8 and the second reflective mirror 9, and the refractive state of the light passing through the convex lens 6 can be irradiated from the light through hole 7 of the second barrel 2 by the first reflective mirror 8 and the second reflective mirror 9, thereby improving the use reliability of the invention.

Specifically, as shown in fig. 1 and 5, the angle adjusting device includes a connecting rod 13 connected to the back of the first reflective mirror 8 or the second reflective mirror 9, a first bevel gear 14 is connected to the connecting rod 13, the connecting rod 14 is connected to the side wall of the first barrel 1 or the second barrel 2 in a hinged manner, a rotating shaft 15 extending out of the first barrel 1 or the second barrel 2 is arranged on the inner wall of the first barrel 1 or the second barrel 2, a second bevel gear 16 is connected to one end of the rotating shaft 15 extending into the first barrel 1 or the second barrel 2, and the first bevel gear 14 is engaged with the second bevel gear 16. During the use, clockwise or anticlockwise rotation axis of rotation 15, axis of rotation 15 drives second bevel gear 16, and through the transmission on second bevel gear 16 and the first bevel gear 14, first bevel gear 14 drives connecting rod 13 and first reflector 8 and second reflector 9 and rotates, changes the angle of first reflector 8 and second reflector 9, and the optimum angle of first reflector 8 and second reflector 9 is 45, can show the refraction state of simulation in first barrel 1 more comprehensively through the clear aperture 7 of second barrel 2.

In the invention, the supporting body 17 is arranged at one end of the first cylinder body 1 and the second cylinder body 2 close to the light through hole 7, the lens slot 18 is arranged on the supporting body 17, different lenses are inserted into the lens slot 18 to adjust the refractive state, so that different degrees displayed by eyes can be conveniently simulated, the eyes of a patient can be simulated more truly, the beginners can know the whole process of examining the shadow and testing the light, and the teaching effect is good.

Specifically, the support body 17 has a semi-cylindrical shape. The lens can be conveniently inserted into the lens slot 18, and the use is very convenient. Furthermore, a plurality of lens slots 18 are arranged at equal intervals, a plurality of lenses with different specifications can be combined, the accurate judgment of the degrees of different refractive states of the simulated eye can be carried out, the reliability of the invention is improved, and a beginner can more comprehensively and accurately master the whole process of eye vision examination through the examination of the simulated eye.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dual-hole simulated eye device, characterized by: comprises a first barrel body (1) and a plurality of second barrel bodies (2) arranged side by side with the first barrel body (1), wherein a third barrel body (3) communicated with the first barrel body (1) and the second barrel bodies (2) is arranged between the first barrel body (1) and the second barrel bodies (2), one end of the first barrel body (1) is provided with a fourth barrel body (4) capable of sliding along the outer wall of the first barrel body (1), the end part of the fourth barrel body (4) is fixed with an eye ground (5), one end of the first barrel body (1) close to the fourth barrel body (4) is provided with a convex lens (6), one end of the first barrel body (1) far away from the convex lens (6) and one end of the second barrel body (2) far away from the fourth barrel body (4) are both provided with a light through hole (7), a first reflector (8) fixed on the inner wall of the first barrel body (1) is arranged between the light through hole (7) and the convex lens (6), the first reflective mirror (8) is positioned on the axis of the third cylinder (3), a second reflective mirror (9) parallel to the first reflective mirror (8) is arranged on the inner wall of the second cylinder (2), the second reflective mirror (9) is positioned at the intersection of the axis of the third cylinder (3) and the axis of the second cylinder (2), and the fronts of the first reflective mirror (8) and the second reflective mirror (9) are opposite;

one end that first barrel (1) is close to logical unthreaded hole (7), one end that second barrel (2) is close to logical unthreaded hole (7) all are provided with can pivoted regulating plate (10), set up light trap (11) of equidimension not on regulating plate (10), first barrel (1) inner wall and second barrel (2) inner wall lower part are provided with the opening, regulating plate (10) below is connected with handle (12) that can follow the opening and stretch out.

2. The dual-hole simulated eye device of claim 1 wherein: the first barrel (1) is connected with the fourth barrel (4) through a sliding rail and a sliding groove.

3. The dual-hole simulated eye device of claim 2, wherein: the cross sections of the sliding rails and the sliding grooves are rectangular, dovetail-shaped or T-shaped.

4. The dual-hole simulated eye device of claim 1 wherein: the first reflective mirror (8) and the second reflective mirror (9) are both connected to the inner wall of the first cylinder (1) and the inner wall of the second cylinder (2) through angle adjusting devices.

5. The binocular simulated eye device of claim 4, wherein: the angle adjusting device comprises a connecting rod (13) connected to the back face of the first reflecting mirror (8) or the back face of the second reflecting mirror (9), a first bevel gear (14) is connected to the connecting rod (13), a rotating shaft (15) extending out of the first barrel (1) or the second barrel (2) is arranged on the inner wall of the first barrel (1) or the second barrel (2), a second bevel gear (16) is connected to one end, extending into the first barrel (1) or the second barrel (2), of the rotating shaft (15), and the first bevel gear (14) is meshed with the second bevel gear (16).

6. The dual-hole simulated eye device of claim 1 wherein: one ends of the first cylinder body (1) and the second cylinder body (2) close to the light through hole (7) are provided with supporting bodies (17), and lens slots (18) are formed in the supporting bodies (17).

7. The binocular simulated eye device of claim 6, wherein: the support body (17) is semi-cylindrical.

8. The binocular simulated eye device of claim 6, wherein: the lens slots (18) are arranged in a plurality at equal intervals.

9. The dual-hole simulated eye device of claim 1 wherein: the adjusting plate is fan-shaped, the light holes (11) are distributed on the adjusting plate in an arc shape, and the lower portion of the adjusting plate (10) is hinged to the opening.