CN207051519U - A kind of optical lens with curved surface - Google Patents
A kind of optical lens with curved surface Download PDFInfo
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- CN207051519U CN207051519U CN201720594396.6U CN201720594396U CN207051519U CN 207051519 U CN207051519 U CN 207051519U CN 201720594396 U CN201720594396 U CN 201720594396U CN 207051519 U CN207051519 U CN 207051519U
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- minute surface
- curved surface
- optical lens
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Abstract
The utility model discloses a kind of optical lens with curved surface, includes minute surface and the boss being connected with minute surface；The minute surface includes the plane of incidence and exit facet；The boss is located between the plane of incidence and exit facet；The surface equation of the minute surface is：Z=cr2/(1+SQRT(1‑(1+k)c2 r2))+A1X+A2Y+2A3（r2‑1）；Wherein, for the curved surface using center of lens as origin, eyeglass is horizontal positioned；X represents horizontal direction, and Y represents longitudinal direction, and c is radius of curvature, and k is quadratic surface coefficient, and r is respective coordinates position to the distance of origin, A1、A2、A3It is constant coefficient.The utility model passes through above-mentioned setting so that for the light of camera lens when being projected by optical mirror slip, the deflection of its imaging is few and edge imaging definition is high.
Description
Technical field
It the utility model is related to optical mirror plane technical field, and in particular to a kind of optical lens with curved surface.
Background technology
Now, camera lens module has been widely used in a variety of portable type electronic products, realizes convenient camera function, and
In order to adapt to various light environments, people thirst on such electronic product being equipped with flash lamp, with the development of science and technology existing
There is the volume of flash lamp also just made less and less, have been able to be adapted to the portable type electronic product of various miniaturizations, one
As flash lamp include a light source, be additionally provided with an optical mirror slip to ensure the effect of emergent ray, in front of the light source, the optics
Eyeglass generally coordinates with the outer surface of electronic product, to protect flash lamp internal structure and so that flash lamp design is unlikely to dash forward very much
It is towering, meanwhile, the optical mirror slip should also have the function that so that the injection light of flash lamp is more uniformly distributed, is soft.Because optics is moulded
Glue eyeglass is in stability, environmental protection, cost are low, etc. have a clear superiority, in mobile lens and other taken the photograph phase camera lens
Widely used Deng field, high-volume uses particularly in mobile lens.
At present, in optics plastic lens to use aspheric optical lens, such a eyeglass is 360 degree of circle symmetrical structures, existing more
The image that we are seen in reality is generally all 4:3 or 16:9 rectangle picture, it is clear that require high and opposite side in imaging distortion
On the premise of edge definition requires high, aspherical lens can not meet to require.
The content of the invention
The purpose of this utility model is to be directed to above-mentioned deficiency of the prior art, there is provided a kind of imaging distortion amount is few, side
The high optical lens with curved surface of edge imaging definition.
The purpose of this utility model is achieved through the following technical solutions：A kind of optical lens with curved surface, include minute surface and
The boss being connected with minute surface；The minute surface includes the plane of incidence and exit facet；The boss located at the plane of incidence and exit facet it
Between；The surface equation of the minute surface is：Z=cr2 /(1+SQRT(1-(1+k)c2 r2 ))+ A1X+A2Y+2A3（r2-1）；Wherein,
For the curved surface using center of lens as origin, eyeglass is horizontal positioned；X represents horizontal direction, and Y represents longitudinal direction, and c is radius of curvature, k
For quadratic surface coefficient, r is respective coordinates position to the distance of origin, A1、A2、A3It is constant coefficient.
The utility model is further arranged to, and the both sides of the boss are arranged with two planes.
The utility model is further arranged to, and the minute surface uses transparent optical resin of the refractive index between 1.3-1.8
Material is made.
The utility model is further arranged to, and the minute surface uses transparent optical resin of the transmitance between 85%-94%
Material is made.
The utility model is further arranged to, and the center thickness of the minute surface is between 0.35-0.55mm.
The utility model is further arranged to, and the abbe number of the minute surface is between 45-60.
The beneficial effects of the utility model：The utility model passes through above-mentioned setting so that the light of camera lens is by optics
When eyeglass is projected, the deflection of its imaging is few and edge imaging definition is high.
Brief description of the drawings
Utility model is described further using accompanying drawing, but the embodiment in accompanying drawing is not formed to of the present utility model
What is limited, on the premise of not paying creative work, can also be according to the following drawings for one of ordinary skill in the art
Obtain other accompanying drawings.
Fig. 1 is top view of the present utility model；
Fig. 2 is sectional view of the present utility model；
Fig. 3 is opticpath figure of the present utility model；
Fig. 4 is distortion schematic diagram of the present utility model；
Description of reference numerals in Fig. 1 to Fig. 4：
1- boss；The 2- planes of incidence；3- exit facets；4- planes.
Embodiment
The utility model is further described with the following Examples.
From Fig. 1 and Fig. 2；A kind of optical lens with curved surface described in the present embodiment, include minute surface and connect with minute surface
The boss 1 connect；The minute surface includes the plane of incidence 2 and exit facet 3；The boss 1 is located between the plane of incidence 2 and exit facet 3；
The surface equation of the minute surface is：Z=cr2 /(1+SQRT(1-(1+k)c2 r2 ))+ A1X+A2Y+2A3r2-1；Wherein, the curved surface
Using center of lens as origin, eyeglass is horizontal positioned；X represents horizontal direction, and Y represents longitudinal direction, and c is radius of curvature, and k is secondary
Surface coefficients, r are respective coordinates position to the distance of origin, A1、A2、A3It is constant coefficient.Pass through above-mentioned setting so that mirror
For the light of head when being projected by optical mirror slip, the deflection of its imaging is few and edge imaging definition is high；Such as Fig. 3 institutes
Show, the amount of light of the surface equation concentrates on the edge of eyeglass so that the marginal definition of imaging is high；As shown in figure 4, the eyeglass
Distortion be less than 2.0%, meet the few requirement of camera lens needs deflection on the market.It is worth noting that, X, Y, Z in surface equation
Relation between three, applicant is by the retrieval of early stage, and associated documents record, is not that applicant passes through long-term observation
Accidentally obtained with experiment, as long as meeting above-mentioned relation formula, the effect that imaging distortion amount is few, edge imaging definition is high can be reached
Fruit.
A kind of optical lens with curved surface described in the present embodiment, the both sides of the boss 1 are arranged with two planes 4.To mirror
When piece is installed with mirror bucket, two planes 4 are used for the position of fixing len and mirror bucket, ensure that the eyeglass relative position
Alignd with image space.
A kind of optical lens with curved surface described in the present embodiment, the minute surface use refractive index transparent between 1.3-1.8
Optical resin material is made, and refractive index is preferably 1.6, and the optical resin of this refractive index to be imaged apparent.
A kind of optical lens with curved surface described in the present embodiment, the minute surface use transmitance transparent between 85%-94%
Optical resin material is made, and transmitance is preferably 88%, and the optical resin of this transmitance to be imaged apparent.
A kind of optical lens with curved surface described in the present embodiment, the center thickness of the minute surface between 0.35-0.55mm, in
Heart thickness is preferably 0.43mm, and the optical resin of this center thickness to be imaged apparent.
A kind of optical lens with curved surface described in the present embodiment, the abbe number of the minute surface is between 45-60.Abbe number
Preferably 54mm, the optical resin of this abbe number to be imaged apparent.
Finally it should be noted that above example is only illustrating the technical solution of the utility model, rather than to this reality
With the limitation of novel protected scope, although being explained with reference to preferred embodiment to the utility model, this area it is general
It is logical it will be appreciated by the skilled person that can be modified to the technical solution of the utility model or equivalent substitution, without departing from this
The spirit and scope of utility model technical scheme.
Claims (6)
- A kind of 1. optical lens with curved surface, it is characterised in that：Include minute surface and the boss being connected with minute surface（1）；The minute surface Include the plane of incidence（2）And exit facet（3）；The boss（1）Located at the plane of incidence（2）With exit facet（3）Between；The minute surface Surface equation be：Z=cr2 /(1+SQRT(1-(1+k)c2 r2 ))+ A1X+A2Y+2A3（r2-1）；Wherein, the curved surface is with eyeglass Center is origin, and eyeglass is horizontal positioned；X represents horizontal direction, and Y represents longitudinal direction, and c is radius of curvature, and k is quadratic surface system Number, r are respective coordinates position to the distance of origin, A1、A2、A3It is constant coefficient.
- A kind of 2. optical lens with curved surface according to claim 1, it is characterised in that：The boss（1）Both sides symmetrically set There are two planes（4）.
- A kind of 3. optical lens with curved surface according to claim 1, it is characterised in that：The minute surface uses refractive index as 1.3- Transparent optical resin material between 1.8 is made.
- A kind of 4. optical lens with curved surface according to claim 1, it is characterised in that：The minute surface uses transmitance as 85%- Transparent optical resin material between 94% is made.
- A kind of 5. optical lens with curved surface according to claim 1, it is characterised in that：The center thickness of the minute surface exists Between 0.35-0.55mm.
- A kind of 6. optical lens with curved surface according to claim 1, it is characterised in that：The abbe number of the minute surface is in 45- Between 60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594396.6U CN207051519U (en) | 2017-05-25 | 2017-05-25 | A kind of optical lens with curved surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594396.6U CN207051519U (en) | 2017-05-25 | 2017-05-25 | A kind of optical lens with curved surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207051519U true CN207051519U (en) | 2018-02-27 |
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ID=61491606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720594396.6U Active CN207051519U (en) | 2017-05-25 | 2017-05-25 | A kind of optical lens with curved surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207051519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107085253A (en) * | 2017-05-25 | 2017-08-22 | 东莞市旭瑞光电科技有限公司 | A kind of optical lens with curved surface |
-
2017
- 2017-05-25 CN CN201720594396.6U patent/CN207051519U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107085253A (en) * | 2017-05-25 | 2017-08-22 | 东莞市旭瑞光电科技有限公司 | A kind of optical lens with curved surface |
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