CN109222886B - Diopter adjustable regulating eye - Google Patents
Diopter adjustable regulating eye Download PDFInfo
- Publication number
- CN109222886B CN109222886B CN201811365289.1A CN201811365289A CN109222886B CN 109222886 B CN109222886 B CN 109222886B CN 201811365289 A CN201811365289 A CN 201811365289A CN 109222886 B CN109222886 B CN 109222886B
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- Prior art keywords
- lens
- telescopic
- positioning body
- mounting hole
- eye
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- 230000001105 regulatory effect Effects 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 210000004087 cornea Anatomy 0.000 claims abstract description 9
- 210000001747 pupil Anatomy 0.000 claims abstract description 7
- 210000000695 crystalline len Anatomy 0.000 claims description 168
- 230000003287 optical effect Effects 0.000 claims description 17
- 239000011521 glass Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 210000001525 retina Anatomy 0.000 claims description 5
- 239000000944 linseed oil Substances 0.000 claims description 3
- 235000021388 linseed oil Nutrition 0.000 claims description 3
- 241000779819 Syncarpia glomulifera Species 0.000 claims description 2
- 239000004006 olive oil Substances 0.000 claims description 2
- 235000008390 olive oil Nutrition 0.000 claims description 2
- 239000001739 pinus spp. Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 229940036248 turpentine Drugs 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 210000001508 eye Anatomy 0.000 description 22
- 238000009434 installation Methods 0.000 description 6
- 238000004088 simulation Methods 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
Abstract
The invention provides an adjustable diopter debugging eye which comprises a positioning body, a front lens, a rear lens, a liquid reservoir and a tele lens assembly, wherein the front lens is arranged at the front end of the positioning body, the rear lens is positioned in the positioning body at the rear end of the front lens, a liquid cavity is formed between the front lens and the rear lens, the liquid reservoir is communicated with the liquid cavity, a simulated cornea is arranged at the front end of the front lens, and a simulated pupil is arranged in the middle of the simulated cornea; the tele lens assembly comprises a telescopic lens, a tele lens, a lens barrel, an image sensor and a connecting seat, wherein the tele lens is arranged at the front end of the lens barrel, and the rear end of the lens barrel is connected with the image sensor; the rear end of the telescopic lens is connected with the lens barrel, the front end of the telescopic lens is nested in the positioning body, the end part of the telescopic lens is provided with a rear lens, the rear lens can axially stretch and retract along with the telescopic lens along the positioning body, and the length of the telescopic lens embedded in the positioning body is changed. The required different equivalent diopters can be obtained, and meanwhile, whether the object image imaging definition is matched with the actually measured diopter or not is judged through the monitoring camera.
Description
Technical Field
The invention relates to the technical field of optical equipment, in particular to an adjustable diopter adjustment eye.
Background
The optometry device is an electronic device for detecting the aggregation condition of light rays after entering the eyeball by taking the state of the emmetropic eye as a standard and measuring the aggregation and dispersion difference degree between the inspected eye and the emmetropic eye. In the design process of the optometry apparatus, the equipment needs to be debugged to ensure that the optometry apparatus can meet the technical indexes of inspection.
In the debugging of optometry apparatuses, it is necessary to use auxiliary equipment for debugging eyes (also called simulated eyes), which are electronic instruments dedicated to ophthalmic examining exercises for simulating different diopters of human eyes. The existing debugging eyes only have standard + -2.50 + -5.00 + -10.00 + -15.00 + -20.00 + -0.00 + -11 integers, and different eyes have different diopters, so that whether the diopter number of the eyes outside a standard simulation eye is accurate and stable or not cannot be confirmed, and whether the imaging definition of an object image is matched with the actually measured diopter cannot be judged.
The technology can solve the problem.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: in order to overcome the defects of the prior art that the debugging eyes cannot correspond to the measurement stability and accuracy of human eyes with different diopters, the method can monitor whether a clear object image is correspondingly matched with the actually measured diopters. The invention provides an adjustable diopter adjustment eye.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an adjustable diopter debugging eye, includes location body, preceding lens, back lens, reservoir and long burnt mirror subassembly, preceding lens is installed in the location body front end, back lens is located the location of preceding lens rear end internal, and forms the liquid chamber that is used for holding liquid optical medium between preceding lens and the back lens, the reservoir passes through pipeline and liquid chamber intercommunication, the front end of preceding lens is equipped with the simulation cornea, simulation cornea middle part is equipped with the simulation pupil, the size of simulation pupil is adjustable.
The tele lens assembly comprises a telescopic lens, a tele lens, a lens barrel, an image sensor and a connecting seat, wherein the tele lens is arranged at the front end of the lens barrel, and the rear end of the lens barrel is connected with the image sensor through the connecting seat; the rear end of the telescopic lens is connected with the lens barrel, the rear end of the telescopic lens is sleeved outside the front end of the lens barrel, the front end of the telescopic lens is nested in the positioning body, the rear lens is installed at the end part of the telescopic lens, the rear lens can axially stretch out and draw back along the positioning body along with the telescopic lens, the length of the telescopic lens embedded in the positioning body is changed, and the distance between the top point of the front lens and the bottom surface of the rear lens is adjusted by changing the embedded length, so that diopter adjustment is realized.
Further, the locating body is internally provided with a front lens mounting hole and a telescopic lens mounting hole which are sequentially connected, the front lens is mounted in the front lens mounting hole, and the telescopic lens is mounted in the telescopic lens mounting hole. The aperture of the front lens mounting hole is smaller than that of the telescopic lens mounting hole, the length of the telescopic lens mounting hole can be determined according to the diopter adjusting range, the length of the telescopic lens mounting hole is generally relatively long, one part of the telescopic lens mounting hole is used for mounting and adjusting the telescopic lens, the other part of the telescopic lens mounting hole is used for a travel liquid cavity and used for accommodating liquid optical media.
Specifically, in order to be convenient for the installation and the change of front lens, front lens mounting hole lateral wall is equipped with the jackscrew, front lens passes through the jackscrew to be fixed in the front lens mounting hole. When the front lens is installed or replaced, the side wall jackscrew is only required to be loosened.
Further, in order to avoid liquid optical medium leakage in the liquid cavity, sealing rings are adopted for sealing between the front lens and the front lens mounting hole, between the telescopic lens and the telescopic lens mounting hole and between the rear lens and the telescopic lens.
Preferably, the refractive index of the liquid optical medium is 1.4782.
Preferably, the liquid optical medium includes, but is not limited to, linseed oil, olive oil, turpentine, glycerol, or the like.
Preferably, the front and rear lenses are made of glass or high refractive index resin.
Preferably, the refractive index of the glass is 1.5163.
Preferably, the glass is, but not limited to, K9 glass, ZF2 glass, ZK1 glass, or the like.
Further, in order to facilitate the installation of the liquid reservoir, an annular boss is arranged on the outer side of the rear end of the positioning body, and the liquid reservoir is installed on the annular boss.
The beneficial effects of the invention are as follows: compared with the adjustment eye in the prior art, the adjustable diopter adjustment eye provided by the invention has the characteristic of being capable of being adjusted to the required diopter at will.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.
In the figure: 1. positioning body 2, simulated cornea 3, front lens 4, rear lens 5, liquid storage device 6, telescopic lens 7, tele lens 8, lens cone 9, image sensor 10, connecting seat 11, pipeline 12, sealing ring 13, liquid cavity 14, simulated retina 15, simulated pupil 16 and screw.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the invention only by way of illustration, and therefore it shows only the constitution related to the invention.
As shown in fig. 1, the adjustable diopter adjustment eye of the present invention includes a positioning body 1, a front lens 3, a rear lens 4, a liquid reservoir 5, and a tele lens assembly, wherein the tele lens assembly includes a telescopic lens 6, a tele lens 7, a lens barrel 8, an image sensor 9, and a connection base 10.
The outside of the rear end of the positioning body 1 is provided with an annular boss, and the liquid reservoir 5 is arranged on the annular boss. The inside front mirror mounting hole and the telescopic lens 6 mounting hole that connects gradually that are equipped with of the location body 1, and the aperture of front mirror mounting hole is less than the aperture of telescopic lens 6 mounting hole, preceding lens 3 is installed in the front mirror mounting hole of location body 1 front end, telescopic lens 6 front end nestification is in the telescopic lens 6 mounting hole of location body 1 rear end, and tip installation rear lens 4, rear lens 4 can be along the inside and outside extension of location body 1 axial along with telescopic lens 6 together, change the length of telescopic lens 6 embedding in the location body 1, through changing the embedding length to adjust the distance between front lens 3 summit and rear lens 4 bottom surface, thereby realize the adjustment of diopter.
A liquid chamber 13 for containing a liquid optical medium is formed between the front lens 3 and the rear lens 4, and the liquid reservoir 5 communicates with the liquid chamber 13 through a pipe 11 provided inside the positioning body 1. The front end of the front lens 3 is provided with a simulated cornea 2, the middle part of the simulated cornea 2 is provided with a simulated pupil 15, and the size of the simulated pupil 15 is adjustable. In order to facilitate the installation and replacement of the front lens 3, the side wall of the front lens installation hole is provided with a jackscrew, and the front lens 3 is fixed in the front lens installation hole through the jackscrew. In this embodiment, the screw 16 is used as a jackscrew, and a threaded hole is formed in the side wall of the front lens mounting hole, and the screw 16 is connected with the threaded hole and used for locking the front lens 3.
The lens cone 8 is connected to the rear end of the telescopic lens 6, the end part of the lens cone is embedded into the telescopic lens 6, the long-focus lens 7 is installed at the front end of the lens cone 8, the rear end of the lens cone 8 is connected with the image sensor 9 through the connecting seat 10, and the connecting seat 10 is sleeved on the lens cone 8.
In order to avoid leakage of the liquid optical medium in the liquid cavity 13, sealing rings 12 are used for sealing between the front lens 3 and the front lens mounting hole, between the telescopic lens 6 and the telescopic lens 6 mounting hole, and between the rear lens 4 and the telescopic lens 6.
In this embodiment, the refractive index of the liquid optical medium is preferably 1.478. Preferably, the liquid optical medium may be linseed oil. The front lens 3 and the rear lens 4 are made of glass having a refractive index of 1.5163, preferably K9 glass, due to the difference in refractive index of various objects.
Debugging process and principle:
the front lens 3 is used for simulating the crystalline lens of the human eye, and adopts a convex lens; the bottom surface of the rear lens 4 serves as a simulated retina 14 for simulating the retina of a human eye, and the rear lens 4 is a planar lens; the distance from the vertex of the front lens 3 to the bottom surface of the rear lens 4 represents the diopter of the human eye, and the longer the distance is, the larger the negative diopter is, and the shorter the distance is, the larger the positive diopter is. The adjustment of the diopter is determined by the distance from the vertex of the front mirror to the bottom surface of the rear mirror, and diopter can be adjusted by changing the distance.
When the telescopic lens 6 is stretched outwards during debugging, the distance between the front lens 3 and the rear lens 4 is prolonged, the negative diopter is increased, meanwhile, the volume of the liquid cavity 13 is increased, the liquid optical medium in the liquid reservoir 5 enters the liquid cavity 13 through the pipeline 11, the expanded space is complemented, and the diopter combined by the front lens 3, the current liquid optical medium and the rear lens 4 is measured by the optometry instrument.
When the retractable lens 6 is retracted inwards, the distance between the front lens 3 and the rear lens 4 is shortened, the positive diopter is increased, meanwhile, the volume of the liquid cavity 13 is reduced, the redundant liquid optical medium in the liquid cavity 13 is discharged into the liquid storage device 5, and at the moment, the diopter combined by the front lens 3, the current liquid optical medium and the rear lens 4 is measured by the optometry instrument.
The imaging surface of the rear lens 4 is additionally provided with a tele lens for imaging, the imaging is carried out on the imaging surface of the tele lens assembly and then is carried out on the imaging surface of the image sensor 9, the imaging surface is amplified and displayed on a display, and whether the imaging definition of the object image is matched with the current actually measured diopter is judged by a monitoring camera.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. An adjustable diopter adjustment eye, characterized by: the liquid storage device comprises a positioning body (1), a front lens (3), a rear lens (4), a liquid storage device (5) and a tele lens assembly, wherein a front lens mounting hole and a telescopic lens mounting hole which are sequentially connected are formed in the positioning body (1), the front lens (3) is mounted in the front lens mounting hole at the front end of the positioning body (1), the rear lens (4) is positioned in the positioning body (1) at the rear end of the front lens (3), a liquid cavity (13) for containing liquid optical media is formed between the front lens (3) and the rear lens (4), the liquid storage device (5) is communicated with the liquid cavity (13) through a pipeline (11), a simulated cornea (2) is arranged at the front end of the front lens (3), and a simulated pupil (15) is arranged in the middle of the simulated cornea (2); the front lens (3) is used for simulating the crystalline lens of the human eye and adopts a convex lens; the bottom surface of the rear lens (4) is used as a simulated retina for simulating the retina of a human eye, the rear lens (4) is a plane lens, and the distance from the top point of the front lens (3) to the bottom surface of the rear lens (4) represents the diopter of the human eye;
the tele lens assembly comprises a telescopic lens (6), a tele lens (7), a lens barrel (8), an image sensor (9) and a connecting seat (10), wherein the tele lens (7) is arranged at the front end of the lens barrel (8), and the rear end of the lens barrel (8) is connected with the image sensor (9) through the connecting seat (10); the rear end of the telescopic lens (6) is connected with the lens cone (8), the front end of the telescopic lens (6) is nested in a telescopic lens mounting hole at the rear end of the positioning body (1), the end part of the telescopic lens is provided with the rear lens (4), the rear lens (4) can stretch inwards and outwards along the axial direction of the positioning body (1) along with the telescopic lens (6), the length of the telescopic lens (6) embedded in the positioning body (1) is changed, and the distance between the top point of the front lens (3) and the bottom surface of the rear lens (4) is adjusted by changing the embedded length, so that diopter adjustment is realized.
2. The adjustable diopter adjustment eye of claim 1 wherein: the side wall of the front mirror mounting hole is provided with a jackscrew, and the front lens (3) is fixed in the front mirror mounting hole through the jackscrew.
3. The adjustable diopter adjustment eye of claim 1 wherein: sealing rings (12) are adopted for sealing between the front lens (3) and the front lens mounting hole, between the telescopic lens (6) and the telescopic lens (6) mounting hole and between the rear lens (4) and the telescopic lens (6).
4. The adjustable diopter adjustment eye of claim 1 wherein: the refractive index of the liquid optical medium is 1.4782.
5. The adjustable diopter adjustment eye of claim 4 wherein: the liquid optical medium is linseed oil, olive oil, turpentine or glycerol.
6. The adjustable diopter adjustment eye of claim 1 wherein: the front lens (3) and the rear lens (4) are made of glass or high-refractive-index resin.
7. The adjustable diopter adjustment eye of claim 6 wherein: the refractive index of the glass was 1.5163.
8. The adjustable diopter adjustment eye of claim 7 wherein: the glass is K9 glass, ZF2 glass or ZK1 glass.
9. The adjustable diopter adjustment eye of claim 1 wherein: the outside of the rear end of the positioning body (1) is provided with an annular boss, and the liquid reservoir (5) is arranged on the annular boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365289.1A CN109222886B (en) | 2018-11-16 | 2018-11-16 | Diopter adjustable regulating eye |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365289.1A CN109222886B (en) | 2018-11-16 | 2018-11-16 | Diopter adjustable regulating eye |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109222886A CN109222886A (en) | 2019-01-18 |
| CN109222886B true CN109222886B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811365289.1A Active CN109222886B (en) | 2018-11-16 | 2018-11-16 | Diopter adjustable regulating eye |
Country Status (1)
| Country | Link |
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| CN (1) | CN109222886B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116687335B (en) * | 2023-08-01 | 2023-11-28 | 深圳盛达同泽科技有限公司 | Large-view-field debugging simulation eye with adjustable pupil size and diopter |
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| CN109222886A (en) | 2019-01-18 |
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