CN113674599A - Bionic eyeball teaching aid for simulating axial variation myopia - Google Patents
Bionic eyeball teaching aid for simulating axial variation myopia Download PDFInfo
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- CN113674599A CN113674599A CN202110825285.2A CN202110825285A CN113674599A CN 113674599 A CN113674599 A CN 113674599A CN 202110825285 A CN202110825285 A CN 202110825285A CN 113674599 A CN113674599 A CN 113674599A
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- 210000005252 bulbus oculi Anatomy 0.000 title claims abstract description 270
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 38
- 208000001491 myopia Diseases 0.000 title claims abstract description 28
- 230000004379 myopia Effects 0.000 title claims abstract description 27
- 241000237983 Trochidae Species 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000004088 simulation Methods 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 210000001508 eye Anatomy 0.000 claims description 37
- 230000005389 magnetism Effects 0.000 claims description 6
- 230000004329 axial myopia Effects 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 description 15
- 238000009434 installation Methods 0.000 description 9
- 230000001936 parietal effect Effects 0.000 description 4
- 101150006573 PAN1 gene Proteins 0.000 description 3
- 210000001525 retina Anatomy 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 210000000234 capsid Anatomy 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
Abstract
The invention belongs to the technical field of bionic teaching aids, and particularly relates to a bionic eyeball teaching aid for simulating axis change myopia, which comprises a camera bottom shell, a camera top shell, a light source and a bionic eyeball assembly, wherein the camera bottom shell is provided with a light source; the camera top shell is covered on the camera bottom shell; the bionic eyeball component is arranged inside the camera bottom shell; the light source is arranged outside the bottom shell of the camera; the bionic eyeball assembly comprises an eyeball external bottom shell, an eyeball external top shell, a light screen and a first eyeball mechanism; the eyeball external bottom shell is arranged inside the camera bottom shell; the eyeball external top shell is covered on the top of the eyeball external bottom shell, and a second groove is formed in the eyeball external top shell; the first eyeball mechanism is arranged inside a bottom shell outside the eyeball; the optical screen is arranged inside the first eyeball mechanism; through light source irradiation device and contrast observation to the formation of image on the light screen, accomplish the experiment of simulation myopia, be convenient for understand the cause of axial myopia.
Description
Technical Field
The invention relates to the technical field of bionic teaching aids, in particular to a bionic eyeball teaching aid for simulating axis change myopia.
Background
Axial myopia is a myopia caused by the fact that the anteroposterior diameter (i.e., axis) of an eyeball is lengthened due to congenital or acquired factors, the length of the axis of a normal eyeball is 24mm on average, while the length of the axis of an eye of axial myopia is more than 24mm, and when parallel light rays enter the eyeball, a focus falls in front of the retina and cannot be imaged clearly.
Among the prior art at present, explain through the video mostly under the myopia condition that simulation axis is elongated, but the video explanation axiality myopia condition is not only not directly perceived, and the expression that can not be clear to the axis of the eye change condition moreover comes out, is not convenient for understand the cause of axiality myopia, consequently, proposes a simulation axis of the eye change myopia and uses bionical eyeball teaching aid to above-mentioned problem.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that most of the simulated short-sightedness with the lengthened eye axis is explained through videos, but the video explanation of the short-sightedness is not visual, the change condition of the eye axis cannot be clearly expressed, and the cause of the short-sightedness is not convenient to understand, the invention provides the bionic eyeball teaching aid for simulating the short-sightedness with the changed eye axis.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a bionic eyeball teaching aid for simulating axis change myopia, which comprises a camera bottom shell, a camera top shell, a light source and a bionic eyeball assembly, wherein the camera bottom shell is provided with a light source; the camera top shell is covered on the camera bottom shell; the bionic eyeball component is arranged inside the camera bottom shell; the light source is arranged outside the bottom shell of the camera; the bionic eyeball assembly comprises an eyeball external bottom shell, an eyeball external top shell, a light screen and a first eyeball mechanism; the eyeball external bottom shell is arranged inside the camera bottom shell, and a first groove is formed in the eyeball external bottom shell; a plane mirror is arranged in the first groove; the eyeball external top shell is covered on the top of the eyeball external bottom shell, and a second groove is formed in the eyeball external top shell; the second groove is matched with the plane mirror; the first eyeball mechanism is arranged inside a bottom shell outside the eyeball; the optical screen is arranged inside the first eyeball mechanism; after the assembly of the simulation device is completed, the light source irradiation device is used for observing the imaging on the light screen so as to complete the myopia experiment when the length of the simulated eye axis is 250mm, and the cause of axial myopia is convenient to understand.
Preferably, the first eyeball mechanism comprises a first eyeball inner bottom shell and a first eyeball inner top shell; the first eyeball inner bottom shell is arranged inside the eyeball outer bottom shell, and a first clamping groove and a first light screen groove are formed in the first eyeball inner bottom shell; a lens is arranged in the first clamping groove; the optical screen is arranged in the first optical screen groove; the top shell cover of the first eyeball inner part is arranged on the bottom shell of the first eyeball inner part, and the side wall of the top shell cover is provided with a second clamping groove and a second light screen groove; the second clamping groove is matched with the lens; the second light screen groove is matched with the light screen; the optical screen is placed in the first optical screen groove, the lenses are placed in the first clamping groove and used for refracting light, the first eyeball inner top shell is covered on the first eyeball inner bottom shell, and the installation of the first eyeball mechanism is completed, wherein the length of an eye axis of the first eyeball mechanism is 250mm, and the condition that the eye axis is lengthened is simulated through the first eyeball mechanism.
Preferably, a pair of first positioning rods is fixedly connected to the side wall of the bottom shell at the inner part of the first eyeball; a pair of first positioning holes is formed in the side wall of the top shell at the inner part of the first eyeball; the first positioning rod is in sliding fit with the inner side wall of the first positioning hole; a pair of second positioning rods is fixedly connected to the side wall of the bottom shell outside the eyeball; a second positioning hole is formed in the top shell outside the eyeball; the first positioning rod is in sliding fit with the inner side wall of the first positioning hole; the first positioning hole is aligned to the first positioning rod, so that the first positioning rod is clamped into the first positioning hole, and the second positioning rod is clamped into the second positioning hole, so that the installation of the eyeball external bottom shell and the eyeball external top shell is completed.
Preferably, a second eyeball mechanism can be further arranged inside the eyeball external bottom shell; the second eyeball mechanism comprises a second eyeball inner bottom shell and a second eyeball inner top shell; the second eyeball inner bottom shell is arranged in the eyeball outer bottom shell, and a pair of third positioning rods is fixedly connected to the side wall of the second eyeball inner bottom shell; the second eyeball inner top shell is arranged on the second eyeball inner bottom shell, and a pair of third positioning holes are formed in the side wall of the second eyeball inner top shell; the third positioning rod is in sliding fit with the third positioning hole; the length of an eye axis of the second eyeball mechanism is 240mm, the second eyeball mechanism simulates the imaging condition under the normal condition, and the second eyeball mechanism forms an image to form contrast with the first eyeball mechanism.
Preferably, a first step groove and a third light screen groove are formed in the bottom shell inside the second eyeball; a second step groove and a fourth light screen groove are formed in the top shell in the second eyeball; the first step groove is matched with the lens; the second stepped groove is matched with the lens; the third light screen groove is matched with the light screen; the fourth light screen groove is matched with the light screen; the second step groove is used for placing the lens, and the third light screen groove is used for placing the light screen, is shone by the light source, and the lens carries out the refraction of light and carries out the formation of image at the light screen to form the contrast with the formation of image of first eyeball mechanism.
Preferably, a support frame is fixedly connected to the inner side wall of the bottom shell of the camera; the top of the support frame is fixedly connected with an anti-skid gasket; a supporting block is fixedly connected to the inner side wall of the eyeball external bottom shell; the supporting shoe is used for playing the parcel supporting role to the inside drain pan of eyeball, and the support frame is used for wrapping up the outside drain pan of eyeball and supporting, and anti-skidding gasket has increased the frictional force with the outside drain pan contact site of eyeball for bionical eyeball subassembly is placed more stably.
Preferably, a first placing groove is formed in the side wall of the bottom shell of the camera; a first magnetic block is arranged in the first placing groove; a second placing groove is formed in the side wall of the camera top shell; a second magnet is arranged in the second placing groove; the first magnetic block and the second magnetic block are opposite in magnetism; when the camera bottom shell and the camera top shell are installed, the first magnetic block is in contact with the second magnetic block, the first magnetic block and the second magnetic block are opposite in magnetism and mutually attract, and therefore the installation between the camera bottom shell and the camera top shell is completed.
Preferably, a rubber sheet is arranged on the inner side wall of the second positioning hole; a plurality of lens placing blocks are fixedly connected inside the camera bottom shell; when the second positioning rod is clamped into the second positioning hole, the second positioning rod extrudes the rubber sheet, so that the second positioning rod is clamped in the second point position hole.
Preferably, a clamping groove is arranged on the inner side wall of the lens placing block; a clamping mechanism is arranged in the clamping groove; the clamping mechanism comprises an arc block and a sponge block; the arc block is connected to the inner side wall of the clamping groove in a sliding mode through a spring, and a sponge sheet is fixedly connected to the outer side wall of the arc block; the pair of sponge blocks are fixedly connected to the inner side walls of the lens placing blocks; when placing the lens and placing the piece inside at the lens, make the circular arc piece carry out the chucking through the elasticity of spring to the lens for the stability that the lens was placed, the circular arc piece is avoided causing the damage to the lens to the setting of sponge piece.
Preferably, a rubber gasket is fixedly connected to the inner side wall of the lens placing block; the inner side wall of the lens placing block is prevented from being directly contacted with the lens to cause abrasion.
The invention has the advantages that:
1. according to the invention, the first eyeball mechanism is assembled and placed in the bottom shell outside the eyeball, the top shell outside the eyeball and the camera top shell are covered, and the light source irradiation device is used for imaging on the light screen, so that the myopia condition of human eye axis lengthening is simulated, an operator can visually observe the imaging definition of the eye axis lengthening, and the cause of axial myopia can be conveniently and rapidly understood;
2. in the invention, the second eyeball mechanism is arranged to simulate imaging under normal conditions, the first eyeball mechanism is replaced by the second eyeball mechanism, and then the device is irradiated by the light source again to observe the imaging condition on the light screen and compare with the imaging condition of the first eyeball mechanism, so that the simulation result is more visual.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a three-dimensional view of a combination of a bottom shell of a camera, an outer bottom shell of an eyeball and a first inner bottom shell of an eyeball according to an embodiment of the invention;
FIG. 2 is a three-dimensional view of a combination of a bottom shell of a camera, an outer bottom shell of an eyeball and a second inner bottom shell of an eyeball according to an embodiment of the invention;
FIG. 3 is a three-dimensional view of a combination of a top shell of a camera, a top shell of an outer portion of an eyeball and a top shell of an inner portion of a first eyeball according to an embodiment of the present invention;
FIG. 4 is a schematic three-dimensional structure of a bottom case of a camera according to an embodiment;
FIG. 5 is a schematic three-dimensional view of an outer shell of an eyeball according to an embodiment;
FIG. 6 is a schematic three-dimensional view of an outer bottom shell and a first inner bottom shell of an eyeball according to an embodiment;
FIG. 7 is a schematic three-dimensional view of the outer spherical dome and the first inner spherical dome of a first embodiment of the present invention;
FIG. 8 is a schematic three-dimensional structure of an outer bottom shell of an eyeball and a second inner bottom shell of an eyeball according to an embodiment;
FIG. 9 is a schematic three-dimensional view of an outer parietal shell of an eyeball and an inner parietal shell of a second eyeball according to an embodiment;
FIG. 10 is a front cross-sectional view of a lens placement block in accordance with one embodiment;
FIG. 11 is a side cross-sectional view of a lens placement block in accordance with one embodiment;
FIG. 12 is a schematic three-dimensional structure diagram of the outer spherical dome and the inner spherical dome of the first eyeball of the second embodiment.
In the figure: 1. a camera bottom case; 11. a support frame; 12. an anti-slip gasket; 13. a first placing groove; 14. a first magnetic block; 15. a lens placement block; 151. a rubber gasket; 16. a card slot; 17. a clamping mechanism; 171. an arc block; 172. a sponge block; 173. a sponge sheet; 2. a camera top case; 21. a second placing groove; 22. a second magnetic block; 4. an eyeball outer bottom shell; 41. a first groove; 42. a plane mirror; 43. a second positioning rod; 44. a support block; 5. the outer parietal shell of the eyeball; 51. a second groove; 52. a second positioning hole; 53. a rubber sheet; 6. a light screen; 7. a first eyeball inner bottom shell; 71. a first clamping groove; 72. a first light screen groove; 73. a lens; 74. a first positioning rod; 8. a first eyeball inner top shell; 81. a second clamping groove; 82. a second light screen groove; 83. a first positioning hole; 84. a rubber pad; 9. a second intraocular inner base shell; 91. a third positioning rod; 92. a first step groove; 93. a third light screen groove; 10. a second intraocular parietal capsid; 101. a third positioning hole; 102. a second stepped groove; 103. and a fourth light screen groove.
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.
Example one
Referring to fig. 1-11, a bionic eyeball teaching aid for simulating axial variation of eyes for myopia includes a camera bottom case 1, a camera top case 2, a light source and a bionic eyeball component; the camera top shell 2 is covered on the camera bottom shell 1; the bionic eyeball component is arranged inside the camera bottom shell 1; the light source is arranged outside the camera bottom shell 1; the bionic eyeball assembly comprises an eyeball external bottom shell 4, an eyeball external top shell 5, a light screen 6 and a first eyeball mechanism; the eyeball external bottom shell 4 is arranged inside the camera bottom shell 1, and a first groove 41 is formed in the eyeball external bottom shell 4; a plane mirror 42 is arranged in the first groove 41; the eyeball external top shell 5 is covered on the top of the eyeball external bottom shell 4, and a second groove 51 is formed in the eyeball external top shell 5; the second groove 51 is matched with the plane mirror 42; the first eyeball mechanism is arranged inside the eyeball external bottom shell 4; the light screen 6 is arranged inside the first eyeball mechanism; during the during operation, when the experiment is changed in simulation eye axis, at first place eyeball outside drain pan 4 in camera drain pan 1, place first eyeball mechanism in eyeball outside drain pan 4 after installing first eyeball mechanism with light screen 6, cover eyeball outside top shell 5 after installing level crossing 42 in first recess 41, establish camera top shell 2 lid on camera drain pan 1 at last to accomplish analogue means's equipment, observe and then accomplish the experiment is changed in simulation eye axis through light source irradiation device and to the formation of image on light screen 6.
The first eyeball mechanism comprises a first eyeball inner bottom shell 7 and a first eyeball inner top shell 8; the first eyeball inner bottom shell 7 is arranged inside the eyeball outer bottom shell 4, and a first clamping groove 71 and a first light screen groove 72 are formed in the first eyeball inner bottom shell 7; a lens 73 is arranged in the first clamping groove 71; the light screen 6 is arranged in the first light screen groove 72; the first eyeball inner top shell 8 is covered on the first eyeball inner bottom shell 7, and the side wall of the first eyeball inner top shell is provided with a second clamping groove 81 and a second light screen groove 82; the second clamping groove 81 is matched with the lens 73; the second light screen groove 82 is matched with the light screen 6; during operation, when the first eyeball mechanism is installed, the first eyeball inner bottom shell 7 is placed inside the eyeball outer bottom shell 4, the light screen 6 is placed in the first light screen groove 72, the lens 73 is placed in the first clamping groove 71 and used for refracting light, the first eyeball inner top shell 8 is covered on the first eyeball inner bottom shell 7, and therefore installation of the first eyeball mechanism is completed, and the condition that the eyeball axis is lengthened is simulated through the first eyeball mechanism.
A pair of first positioning rods 74 are fixedly connected to the side wall of the bottom shell 7 in the first eyeball; a pair of first positioning holes 83 are formed in the side wall of the top shell 8 in the first eyeball; the first positioning rod 74 is in sliding fit with the inner side wall of the first positioning hole 83; a pair of second positioning rods 43 is fixedly connected to the side wall of the eyeball external bottom shell 4; a second positioning hole 52 is formed on the eyeball external top shell 5; the first positioning rod 74 is in sliding fit with the inner side wall of the first positioning hole 83; in operation, when the first eyeball inner top shell 8 is covered on the first eyeball inner bottom shell 7, the first positioning hole 83 is aligned with the first positioning rod 74, so that the first positioning rod 74 is clamped into the first positioning hole 83, and the second positioning rod 43 is clamped into the second positioning hole 52, thereby completing the installation of the eyeball outer bottom shell 4 and the eyeball outer top shell 5.
A second eyeball mechanism can be further arranged inside the eyeball external bottom shell 4; the second eyeball mechanism comprises a second eyeball inner bottom shell 9 and a second eyeball inner top shell 10; the second eyeball inner bottom shell 9 is arranged in the eyeball outer bottom shell 4, and a pair of third positioning rods 91 is fixedly connected to the side wall of the second eyeball inner bottom shell; the second eyeball inner top shell 10 is covered on the second eyeball inner bottom shell 9, and a pair of third positioning holes 101 are formed in the side wall of the second eyeball inner top shell; the third positioning rod 91 is in sliding fit with the third positioning hole 101; during operation, the second eyeball mechanism is arranged to simulate the imaging condition under the normal condition, the imaging condition is compared with that of the first eyeball mechanism, when the second eyeball mechanism is installed, the second eyeball inner bottom shell 9 is installed on the eyeball outer bottom shell 4, the third positioning hole 101 is aligned to the third positioning rod 91, and the third positioning rod 91 is clamped into the third positioning hole 101 so that the second eyeball mechanism is installed.
A first step groove 92 and a third light screen groove 93 are formed in the second eyeball inner bottom shell 9; a second step groove 102 and a fourth light screen groove 103 are formed in the second eyeball inner top shell 10; the first step groove 92 is matched with the lens 73; the second stepped groove 102 is matched with the lens 73; the third light screen groove 93 is matched with the light screen 6; the fourth light screen groove 103 is matched with the light screen 6; in operation, the second stepped groove 102 is used for placing the lens 73, the third light screen groove 93 is used for placing the light screen 6, the light source irradiates the light screen, and the light is refracted through the lens 73 to form an image on the light screen 6, so that the image is compared with the image of the first eyeball mechanism.
A support frame 11 is fixedly connected to the inner side wall of the camera bottom shell 1; the top of the support frame 11 is fixedly connected with an anti-skid gasket 12; a supporting block 44 is fixedly connected to the inner side wall of the eyeball external bottom shell 4; during operation, through set up supporting shoe 44 on eyeball outside drain pan 4 inside wall and be used for playing the parcel supporting role to the inside drain pan of eyeball, set up support frame 11 on the camera drain pan 1 and be used for wrapping up the support to eyeball outside drain pan 4, anti-skidding gasket 12 on the support frame 11 has increased the frictional force with eyeball outside drain pan 4 contact site to make bionical eyeball subassembly place more stable.
A first placing groove 13 is formed in the side wall of the camera bottom shell 1; a first magnetic block 14 is arranged in the first placing groove 13; a second placing groove 21 is formed in the side wall of the camera top shell 2; a second magnet block 22 is arranged in the second placing groove 21; the first magnetic block 14 and the second magnetic block 22 are opposite in magnetism; during operation, when the camera bottom shell 1 and the camera top shell 2 are installed, the first magnetic block 14 is in contact with the second magnetic block 22, the first magnetic block 14 and the second magnetic block 22 are opposite in magnetism and mutually attracted, so that the installation between the camera bottom shell 1 and the camera top shell 2 is completed, and the installation structure is convenient to disassemble and replace the internal structure.
A rubber sheet 53 is arranged on the inner side wall of the second positioning hole 52; a plurality of lens placing blocks 15 are fixedly connected inside the camera bottom shell 1; during operation, when the second positioning rod 43 is clamped into the second positioning hole 52, the second positioning rod 43 extrudes the rubber sheet 53, so that the second positioning rod 43 is clamped in the second point position hole, the bottom case 4 outside the eyeball and the top case 5 outside the eyeball are stably installed, and the lens placing block 15 is used for placing lenses 73 with different specifications.
A clamping groove 16 is formed in the inner side wall of the lens placing block 15; a clamping mechanism 17 is arranged in the clamping groove 16; the clamping mechanism 17 comprises an arc block 171 and a sponge block 172; the arc block 171 is slidably connected to the inner side wall of the clamping groove 16 through a spring, and a sponge sheet 173 is fixedly connected to the outer side wall of the arc block 171; a pair of sponge blocks 172 are fixedly connected on the inner side walls of the lens placing blocks 15; during operation, when placing lens 73 inside lens placing block 15, lens 73 lateral wall and the sponge piece 173 contact on the circular arc piece 171 lateral wall, make circular arc piece 171 extrude the spring and slide to draw-in groove 16 inside, elasticity through the spring makes circular arc piece 171 carry out the chucking to lens 73, make the stability that lens 73 placed, the setting of sponge piece 173 is avoided circular arc piece 171 to cause the damage to lens 73, when taking out lens 73, lens 73 lateral wall and sponge piece 172 contact, clean lens 73 surface through sponge piece 172.
A rubber gasket 151 is fixedly connected to the inner side wall of the lens placing block 15; during operation, place piece 15 inside through placing the lens and set up rubber gasket 151 and play the guard action to lens 73, avoid lens 73 and lens to place piece 15 inside wall direct contact and cause wearing and tearing.
Example two
Referring to fig. 12, in a first comparative example, as another embodiment of the present invention, a rubber pad 84 is disposed on an inner side wall of the first positioning hole 83; in operation, the rubber pad 84 is disposed in the first positioning hole 83, so that the connection between the first eyeball inner bottom shell 7 and the first eyeball inner top shell 8 is more stable.
The method comprises the following operation steps:
the average of the eye axis length of the normal eyeball of people is 24mm, and the eye axis length of the axial myopia is greater than 24mm, so that for the observation of the experiment, the teaching aid model is a teaching aid manufactured by amplifying the normal eyeball of people and the axial myopia eyeball of people by 10 times, thereby facilitating the simulation experiment of the staff.
Firstly, an axial myopia eyeball simulation experiment: the structure of the human axial myopia eyeball is simulated through the first eyeball mechanism, so that the condition that the axial myopia eye axis length of a human eye is 25mm is simulated by the eye axis length of the first eyeball mechanism being 250mm in order to facilitate observation of experimental phenomena by workers;
the experimental steps are as follows: the light source is arranged at a position 5m away from the model for irradiation, the light source can image on the light screen 6, and the imaging blur on the light screen 6 is found through observation, so that when the axial length of the human axial myopia is 25mm, the focus falls on the front end of the retina, and the imaging blur is obtained;
second, normal eyeball simulation experiment: simulating the normal eyeball structure of the human by a second eyeball mechanism, wherein the eye axis length of the second eyeball mechanism is 240mm to simulate the condition that the eye axis length of the normal eyeball of the human is 24 mm;
the experimental steps are as follows: the light source is arranged at a position 5m away from the model for irradiation, the light source can image on the light screen 6, and the image on the light screen 6 is clear through observation, so that when the length of the axis of the eyeball of a human eye is 24mm, the focus falls on the retina, and the image is clear;
through comparing the imaging results of two times of simulation experiments, the imaging difference that the length of the model eye axis is 250mm and the length of the model eye axis is 240mm can be intuitively found, so that the imaging result when the length of the human axial myopia eye axis is 25mm and the length of the human normal eye axis is 24mm is simulated, and the human axial myopia cause can be conveniently understood by people through the intuitive and visual experimental results.
During installation, the first eyeball inner bottom shell 7 is placed inside the eyeball outer bottom shell 4, the optical screen 6 is placed in the first optical screen groove 72, the lens 73 is placed in the first clamping groove 71 and used for refracting light, the first positioning hole 83 in the first eyeball inner top shell 8 is aligned to the first positioning rod 74, the first eyeball inner top shell 8 is covered on the first eyeball inner bottom shell 7, the installation of the first eyeball mechanism is completed, the rubber pad 84 is arranged in the first positioning hole 83, the connection between the first eyeball inner bottom shell 7 and the first eyeball inner top shell 8 is more stable, the first eyeball mechanism is placed on the top of the supporting block 44 inside the eyeball outer bottom shell 4, the first eyeball mechanism plays a wrapping supporting role, the first eyeball 42 is installed in the first groove 41, the second positioning hole 52 is aligned to the second positioning rod 43, and the second positioning rod 43 is clamped into the second positioning hole 52, so that the second positioning hole 52 is clamped into the eyeball outer bottom shell 4 and the eyeball outer top shell 4 5, the rubber sheet 53 in the second positioning hole 52 enables the eyeball external bottom shell 4 and the eyeball external top shell 5 to be stably installed, the eyeball external bottom shell 4 and the eyeball external top shell 5 which are installed are placed on the supporting frame 11 on the inner side wall of the camera bottom shell 1, the supporting frame 11 is used for wrapping and supporting the eyeball external bottom shell 4, the anti-slip gasket 12 on the supporting frame 11 increases the friction force of the contact part with the eyeball external bottom shell 4, so that the bionic eyeball component is more stably placed, the camera top shell 2 is covered on the camera bottom shell 1, the first magnetic block 14 is contacted with the second magnetic block 22, the magnetism of the first magnetic block 14 is opposite to that of the second magnetic block 22, the first magnetic block and the second magnetic block are mutually attracted, so as to complete the assembly of the plane mirror device, a light source is arranged at the axial front end of the plane mirror 42, the model is irradiated by the light source, so that the imaging experiment is carried out on the model, the lens placing block 15 in the camera bottom shell 1 is used for placing lenses 73 with different specifications, this kind of mounting structure convenient to detach and change inner structure, conveniently carry out the experiment, when placing lens 73 inside the piece 15 is placed to the lens, lens 73 lateral wall and the contact of the sponge piece 173 on the circular arc piece 171 lateral wall, make circular arc piece 171 extrude the spring and slide to draw-in groove 16 is inside, elasticity through the spring makes circular arc piece 171 carry out the chucking to lens 73, make the stability that lens 73 placed, the setting of sponge piece 173 avoids circular arc piece 171 to cause the damage to lens 73, when taking out lens 73, lens 73 lateral wall and sponge piece 172 contact, clean lens 73 surface through sponge piece 172, place the inside rubber gasket 151 that sets up of piece 15 and play the guard action to lens 73 through at the lens, avoid lens 73 and lens to place piece 15 inside wall direct contact and cause wearing and tearing.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a simulation axis of the eye changes near-sighted bionical eyeball teaching aid with which characterized in that: the bionic eye-ball camera comprises a camera bottom shell (1), a camera top shell (2), a light source and a bionic eye-ball assembly; the camera top shell (2) is covered on the camera bottom shell (1); the bionic eyeball component is arranged inside the camera bottom shell (1); the light source is arranged outside the camera bottom shell (1);
the bionic eyeball assembly comprises an eyeball external bottom shell (4), an eyeball external top shell (5), a light screen (6) and a first eyeball mechanism; the eyeball external bottom shell (4) is arranged inside the camera bottom shell (1), and a first groove (41) is formed in the eyeball external bottom shell (4); a plane mirror (42) is arranged in the first groove (41); the eyeball external top shell (5) is covered on the top of the eyeball external bottom shell (4), and a second groove (51) is formed in the eyeball external top shell (5); the second groove (51) is matched with the plane mirror (42); the first eyeball mechanism is arranged inside an eyeball external bottom shell (4); the optical screen (6) is arranged inside the first eyeball mechanism.
2. The bionic eyeball teaching aid for simulating axial variation of eyes to treat myopia according to claim 1, which is characterized in that: the first eyeball mechanism comprises a first eyeball inner bottom shell (7) and a first eyeball inner top shell (8); the first eyeball inner bottom shell (7) is arranged inside the eyeball outer bottom shell (4), and a first clamping groove (71) and a first light screen groove (72) are formed in the first eyeball inner bottom shell (7); a lens (73) is arranged in the first clamping groove (71); the light screen (6) is arranged in the first light screen groove (72); the first eyeball inner top shell (8) is covered on the first eyeball inner bottom shell (7), and the side wall of the first eyeball inner top shell is provided with a second clamping groove (81) and a second light screen groove (82); the second clamping groove (81) is matched with the lens (73); the second light screen groove (82) is matched with the light screen (6).
3. The bionic eyeball teaching aid for simulating axial variation of eyes to treat myopia according to claim 2, which is characterized in that: a pair of first positioning rods (74) is fixedly connected to the side wall of the bottom shell (7) in the first eyeball; a pair of first positioning holes (83) is arranged on the side wall of the top shell (8) in the first eyeball; the first positioning rod (74) is in sliding fit with the inner side wall of the first positioning hole (83); a pair of second positioning rods (43) is fixedly connected to the side wall of the eyeball external bottom shell (4); a second positioning hole (52) is formed in the eyeball external top shell (5); the first positioning rod (74) is in sliding fit with the inner side wall of the first positioning hole (83).
4. The bionic eyeball teaching aid for simulating axial variation of eyes to treat myopia according to claim 3, wherein the bionic eyeball teaching aid comprises: a second eyeball mechanism can be further arranged inside the eyeball external bottom shell (4); the second eyeball mechanism comprises a second eyeball inner bottom shell (9) and a second eyeball inner top shell (10); the second eyeball inner bottom shell (9) is arranged in the eyeball outer bottom shell (4), and a pair of third positioning rods (91) is fixedly connected to the side wall of the second eyeball inner bottom shell; the second eyeball inner top shell (10) is covered on the second eyeball inner bottom shell (9), and a pair of third positioning holes (101) are formed in the side wall of the second eyeball inner top shell; and the third positioning rod (91) is in sliding fit with the third positioning hole (101).
5. The bionic eyeball teaching aid for simulating axial variation of eyes to treat myopia according to claim 4, wherein the bionic eyeball teaching aid comprises: a first step groove (92) and a third light screen groove (93) are formed in the second eyeball inner bottom shell (9); a second step groove (102) and a fourth light screen groove (103) are formed in the second eyeball inner top shell (10); the first step groove (92) is matched with the lens (73); the second stepped groove (102) is matched with the lens (73); the third light screen groove (93) is matched with the light screen (6); the fourth light screen groove (103) is matched with the light screen (6).
6. The bionic eyeball teaching aid for simulating axial variation of eyes to treat myopia according to claim 5, wherein the bionic eyeball teaching aid comprises: a support frame (11) is fixedly connected to the inner side wall of the camera bottom shell (1); the top of the support frame (11) is fixedly connected with an anti-skid gasket (12); and a supporting block (44) is fixedly connected on the inner side wall of the eyeball external bottom shell (4).
7. The bionic eyeball teaching aid for simulating axial variation of eyes to treat myopia according to claim 6, which is characterized in that: a first placing groove (13) is formed in the side wall of the camera bottom shell (1); a first magnetic block (14) is arranged in the first placing groove (13); a second placing groove (21) is formed in the side wall of the camera top shell (2); a second magnet (22) is arranged in the second placing groove (21); the first magnetic block (14) and the second magnetic block (22) are opposite in magnetism.
8. The bionic eyeball teaching aid for simulating axial variation of eyes to treat myopia according to claim 7, wherein the bionic eyeball teaching aid comprises: a rubber sheet (53) is arranged on the inner side wall of the second positioning hole (52); a plurality of lens placing blocks (15) are fixedly connected inside the camera bottom shell (1).
9. The bionic eyeball teaching aid for simulating axial variation of eyes to treat myopia according to claim 8, wherein the bionic eyeball teaching aid comprises: a clamping groove (16) is formed in the inner side wall of the lens placing block (15); a clamping mechanism (17) is arranged in the clamping groove (16); the clamping mechanism (17) comprises an arc block (171) and a sponge block (172); the arc block (171) is connected to the inner side wall of the clamping groove (16) in a sliding mode through a spring, and a sponge sheet (173) is fixedly connected to the outer side wall of the arc block (171); the pair of sponge blocks (172) are fixedly connected to the inner side walls of the lens placing blocks (15).
10. The bionic eyeball teaching aid for simulating axial variation of eyes to treat myopia according to claim 9, wherein the bionic eyeball teaching aid comprises: and a rubber gasket (151) is fixedly connected to the inner side wall of the lens placing block (15).
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| CN113674599B (en) | 2023-11-10 |
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