CN207867131U - A kind of optical lens for simulating human eye - Google Patents
A kind of optical lens for simulating human eye Download PDFInfo
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- CN207867131U CN207867131U CN201820373438.8U CN201820373438U CN207867131U CN 207867131 U CN207867131 U CN 207867131U CN 201820373438 U CN201820373438 U CN 201820373438U CN 207867131 U CN207867131 U CN 207867131U
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Abstract
The utility model discloses a kind of optical lens for simulating human eye.The optical lens includes for simulating the first lens of cornea, the aperture for simulating eyeball pupil, the second lens for simulating lens and the image planes for simulating eyeball retina；First lens, the aperture, second lens and the image planes are set gradually according to the same direction, and first lens, the aperture and second lens are arranged in liquid optical medium.The utility model can be more life-like simulation human eye, provided conveniently for ophthalmology department teaching, ophthalmic medical instrument manufacturing enterprise and scientific research in relation to vision.
Description
Technical field
The utility model is related to field of optical lens, more particularly to a kind of optical lens for simulating human eye.
Background technology
Eyeball optics system includes two parts, when the dioptric system for imaging, second is that for receiving image information
Retina is to brain system.It is more deep for the research of vision system and eyeball with the fast development of science and technology.It is existing
The model eye of physical form, practice eye is all not true to nature enough, or even all using air as dioptrics medium, this does not meet in eyeball
Optical medium is the reality of liquid.It is, therefore, desirable to provide a kind of more true to nature, practical, the optical lens of science, as eyeball light
The dioptric system of system.
Invention content
The purpose of this utility model is to provide a kind of for simulating the more life-like of human eye, image quality more preferably optical frames
Head provides conveniently for ophthalmology department teaching, ophthalmic medical instrument manufacturing enterprise and scientific research in relation to vision.
To achieve the above object, the utility model provides following scheme：
A kind of optical lens for simulating human eye, the optical lens include for simulating the first of cornea thoroughly
Mirror, the aperture for simulating eyeball pupil, the second lens for simulating lens and for simulating eyeball retina
Image planes；First lens, the aperture, second lens and the image planes are set gradually according to the same direction,
First lens, the aperture and second lens are arranged in liquid optical medium.
Optionally, first lens in air when be negative lens, first lens include convex surface and concave surface, described
Crowning radius is more than concave；Optionally, the center thickness of first lens is less than or equal to 1mm.
Optionally, the concave and convex surface of first lens is spherical surface.
Optionally, the concave and convex surface of first lens is aspherical.
Optionally, a diameter of 2-6mm of the aperture.
Optionally, second lens are positive lens, and second lens include the first convex surface and the second convex surface, described the
The radius on one convex surface is more than the radius on the second convex surface.
Optionally, the first convex surface and the second convex surface of second lens are spherical surface.
Optionally, the first convex surface and the second convex surface of second lens are aspherical.
Optionally, the refractive index of the liquid optical medium is 1.3-1.48；
Optionally, first lens, the aperture, second lens and the image planes are fixed in shell.
According to specific embodiment provided by the utility model, the utility model discloses following technique effects：This practicality is new
The optical lens that type provides includes for simulating the first lens of cornea, the aperture for simulating eyeball pupil, being used for mould
Second lens of quasi- lens and the image planes for simulating eyeball retina, and first lens, the aperture with
And second lens are arranged in liquid optical medium.It is ophthalmology department teaching, eye so as to more life-like simulation human eye
It is convenient that Medical Instruments manufacturing enterprise of section and scientific research in relation to vision provide.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without having to pay creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of schematic diagram for simulating the optical lens of human eye that the utility model embodiment provides；
Fig. 2 is the optical transfer function analogue data figure for the optical lens that the utility model embodiment one provides；
Fig. 3 is the optical transfer function analogue data figure for the optical lens that the utility model embodiment two provides；
Fig. 4 is the optical transfer function analogue data figure for the optical lens that the utility model embodiment three provides；
Fig. 5 is the optical transfer function analogue data figure for the optical lens that the utility model embodiment four provides.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The purpose of this utility model is to provide a kind of for simulating the more life-like of human eye, image quality more preferably optical frames
Head provides conveniently for ophthalmology department teaching, ophthalmic medical instrument manufacturing enterprise and scientific research in relation to vision.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
As shown in Figure 1, optical lens provided by the utility model includes for simulating the first lens 1 of cornea, using
In aperture 2, the second lens 3 for simulating lens and the picture for simulating eyeball retina of simulation eyeball pupil
Face 4.First lens 1, the aperture 2, second lens 3 and the image planes 4 are according to people's the structure of the eye by a side
To setting gradually.First lens 1, the aperture 2, second lens 3 and the image planes 4 are fixed in shell 5.
First lens are recessed moon type negative lens (when in air), and the first face is convex surface, and the second face is concave surface.First face
Radius is more than the second radius surface, and center thickness is limited in 1mm.First lens 1 simulate cornea, are rolled over to light
It penetrates.Aperture 2 is that fixed size or size are variable, but will be limited between 2-6mm, and aperture 2 simulates the pupil of eyeball.Second
Lens 3 are positive lens, and second lens 3 include the first convex surface and the second convex surface, and the radius on first convex surface is more than second
The radius on convex surface.Second lens 3 simulate the crystalline lens of eyeball, and the light after being reflected to the first lens 1 reflects again.First
Lens 1, aperture 2 and the second lens 3 are placed in the liquid optical medium that refractive index is 1.30~1.48.From external scene
Light passes through the first lens 1, aperture 2 and the second lens 3, converges at the imaging of image planes 4.
Each optical interface in optical lens, can be entirely aspherical or spherical surface, can also be single or multiple aspheric
Face, remaining is spherical surface.
Aspherical formula can be expressed from the next：
X is optical axis direction offset, R in formula0For aspherical vertex curvature radius, e2For aspheric curve eccentricity square,
Y is height of the incident ray on aspherical.
Embodiment one is equipped with the first lens, aperture, the second lens successively from left to right.First lens are recessed moon shape, the
It is convex spherical surface on one side, the second face is concave shape spherical surface.Second lens are lenticular, and the first face is convex spherical surface, the
Two faces are convex spherical surface.The Optic structure parameter of one camera lens of embodiment is as shown in table 1.
Table 1
The optical transfer function analogue data figure of optical lens in embodiment one is as shown in Fig. 2, optics passes Function Modules
Quasi- datagram can reflect the presentation quality of optical lens.
Embodiment two, as shown in Figure 1, being equipped with the first lens, aperture, the second lens successively from left to right.First lens are
Recessed moon shape, the first face are that convex is aspherical, and the second face is that concave shape is aspherical.Second lens are lenticular, the first face
Aspherical for convex, the second face is that convex is aspherical.The Optic structure parameter of two camera lenses and aspherical system are as shown in table 2.
Table 2
The optical transfer function analogue data figure of optical lens in embodiment two is as shown in Figure 3.
Embodiment three, as shown in Figure 1, being equipped with the first lens, aperture, the second lens successively from left to right.First lens are
Recessed moon shape negative lens, the first face are that convex is aspherical, and the second face is that concave shape is aspherical.Second lens are lenticular just saturating
Mirror, the first face convex spherical surface, the second face are convex spherical surface.
Shown in the Optic structure parameter and asphericity coefficient table 3 of embodiment three-lens.
Table 3
The optical transfer function analogue data figure of optical lens in embodiment three is as shown in Figure 4.
Example IV, as shown in Figure 1, being equipped with the first lens, aperture, the second lens successively from left to right.First lens are
Recessed moon shape negative lens, the first face are convex spherical surface, and the second face is concave shape spherical surface.Second lens are lenticular positive lens,
Its first face convex is aspherical, and the second face is that convex is aspherical.
The Optic structure parameter and asphericity coefficient of example IV camera lens are as shown in table 4
Table 4
The optical transfer function analogue data figure of optical lens in example IV is as shown in Figure 5.
According to specific embodiment provided by the utility model, the utility model discloses following technique effects：This practicality is new
The optical lens that type provides includes for simulating the first lens of cornea, the aperture for simulating eyeball pupil, being used for mould
Second lens of quasi- lens and the image planes for simulating eyeball retina, and first lens, the aperture with
And second lens are arranged in liquid optical medium.It is ophthalmology department teaching, eye so as to more life-like simulation human eye
It is convenient that Medical Instruments manufacturing enterprise of section and scientific research in relation to vision provide.
Specific case used herein is expounded the principles of the present invention and embodiment, above example
Explanation be merely used to help understand the method and its core concept of the utility model；Meanwhile for the general technology of this field
Personnel, according to the thought of the utility model, there will be changes in the specific implementation manner and application range.In conclusion
The content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of optical lens for simulating human eye, which is characterized in that the optical lens includes for simulating cornea
The first lens, the aperture for simulating eyeball pupil, the second lens for simulating lens and be used for simulated eye
The image planes of ball retina；First lens, the aperture, second lens and the image planes according to the same direction according to
Secondary setting, first lens, the aperture and second lens are arranged in liquid optical medium.
2. optical lens according to claim 1, which is characterized in that first lens in air when be negative lens,
First lens include convex surface and concave surface, and the crowning radius is more than concave；The center thickness of first lens is small
In or equal to 1mm.
3. optical lens according to claim 2, which is characterized in that the concave and convex surface of first lens is ball
Face.
4. optical lens according to claim 2, which is characterized in that the concave and convex surface of first lens is aspheric
Face.
5. optical lens according to claim 1, which is characterized in that a diameter of 2-6mm of the aperture.
6. optical lens according to claim 1, which is characterized in that second lens are positive lens, and described second thoroughly
Mirror includes the first convex surface and the second convex surface, and the radius on first convex surface is more than the radius on the second convex surface.
7. optical lens according to claim 6, which is characterized in that the first convex surface and the second convex surface of second lens
It is spherical surface.
8. optical lens according to claim 6, which is characterized in that the first convex surface and the second convex surface of second lens
It is aspherical.
9. optical lens according to claim 1, which is characterized in that the refractive index of the liquid optical medium is 1.3-
1.48。
10. optical lens according to claim 1, which is characterized in that first lens, the aperture, described second
Lens and the image planes are fixed in shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820373438.8U CN207867131U (en) | 2018-03-19 | 2018-03-19 | A kind of optical lens for simulating human eye |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820373438.8U CN207867131U (en) | 2018-03-19 | 2018-03-19 | A kind of optical lens for simulating human eye |
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| CN207867131U true CN207867131U (en) | 2018-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152950A (en) * | 2018-03-19 | 2018-06-12 | 宁波高斯医疗科技有限公司 | A kind of optical lens for being used to simulate human eye |
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2018
- 2018-03-19 CN CN201820373438.8U patent/CN207867131U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152950A (en) * | 2018-03-19 | 2018-06-12 | 宁波高斯医疗科技有限公司 | A kind of optical lens for being used to simulate human eye |
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