CN208074871U - Optical lens and car light - Google Patents
Optical lens and car light Download PDFInfo
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- CN208074871U CN208074871U CN201820017354.0U CN201820017354U CN208074871U CN 208074871 U CN208074871 U CN 208074871U CN 201820017354 U CN201820017354 U CN 201820017354U CN 208074871 U CN208074871 U CN 208074871U
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Abstract
The utility model provides a kind of optical lens and car light, is related to car light technical field, to solve the problem of that the light type of car light is sharp keen by line boundary, brightness disproportionation between pixel hot spot in the serious matrix form headlight of dispersion.The optical lens includes：The curved sides of convex lens, the convex lens include grid regions, and the grid regions are spliced by the transmission plane of multiple polygons.The optical lens is applied to have the gradient that dipped beam can be reduced when the dipped headlight of line function by line so that and it is soft by line boundary, and mitigate chromatic dispersion problem.When the optical lens is applied to transmission-type matrix form headlight, the linking uniformity between pixel can be improved.
Description
Technical field
The utility model is related to car light technical fields, more particularly, to a kind of optical lens and car light.
Background technology
Currently, in car light, especially have by the dipped headlight of line function, usually because gradient is excessively high, by line
Boundary is very sharp keen, and usually carries apparent dispersion.And in matrix form headlight, it is had between multiple pixel hot spots apparent
Brightness unevenness phenomenon will present different degrees of dark fringe with vertical direction in the horizontal direction.
The dispersion of car light and light and shade uneven phenomenon can influence driving experience.
Utility model content
The purpose of this utility model is to provide a kind of optical lenses, to solve the light type of car light existing in the prior art
It is sharp keen by line boundary, dispersion is serious, in matrix form headlight between pixel hot spot the technical issues of brightness disproportionation.
Optical lens provided by the utility model, including：The curved sides of convex lens, the convex lens include grid regions, institute
Grid regions are stated to be spliced by the transmission plane of multiple polygons.
Preferably, the grid regions are located at the outer surface of the convex lens.
In any of the above-described technical solution, further, the shape of each transmission plane is identical, and the transmission plane
Shape be square.
In any of the above-described technical solution, further, the length of side of the transmission plane is 0.1mm-5mm.
Optionally, the grid regions include a variety of transmission planes of different shapes.
In any of the above-described technical solution, further, when the optical lens is multi-stage lens, the convex lens is located at
Side of the optical lens far from light source.
Optionally, the grid regions are located at the central region of the convex side of the convex lens.
In any of the above-described technical solution, further, the convex lens is planoconvex spotlight, biconvex lens or positive bent moon
Lens.
Optionally, when the convex lens is biconvex lens or positive meniscus lens, the grid surface is located at the lens
Inner surface.
Compared with the existing technology, optical lens described in the utility model has the advantage that：
Optical lens described in the utility model is applied in lighting device, when by optical lens described in the utility model
When applied in the optical module of the car light of automobile, due in optical lens provided by the utility model, the curved surface of convex lens
Side includes grid regions, and grid regions are spliced by the transmission plane of multiple polygons, that is to say, that are spelled using multiple transmission planes
Curved surface made of connecing replaces the smooth curved surface of convex lens in the prior art, to artificial generation light type deviation, and utilizes
This light type deviation, so that light type is with smaller angle, diffusion horizontally or vertically.
When optical lens provided by the utility model to be applied to have by the dipped headlight of line function, can effectively change
Gradient of the kind dipped beam by line, chromatic dispersion problem, with reduce dipped beam by line gradient so that it is soft by line boundary, and subtract
Light chromatic dispersion problem.When by optical lens provided by the utility model be applied to matrix form headlight when, can improve pixel hot spot it
Between linking uniformity.
The another object of the utility model is to propose a kind of car light, to solve the light type of car light existing in the prior art
It is sharp keen by line boundary, dispersion is serious, in matrix form headlight between pixel hot spot the technical issues of brightness disproportionation.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of car light is provided with the optical lens as described in above-mentioned technical proposal in the optical module of the car light.
Possessed advantage is identical compared with the existing technology with above-mentioned optical lens for the car light, and details are not described herein.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the projection schematic diagram for the optical lens that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram of the lens for the control group that the utility model embodiment provides；
Fig. 3 is the Illumination Distribution figure for the control group that the utility model embodiment provides；
Fig. 4 is the structural schematic diagram of the optical lens in the experimental group one that the utility model embodiment provides；
Fig. 5 is the Illumination Distribution figure for the experimental group one that the utility model embodiment provides；
Fig. 6 is the structural schematic diagram of the optical lens in the experimental group two that the utility model embodiment provides；
Fig. 7 is the Illumination Distribution figure for the experimental group two that the utility model embodiment provides；
Fig. 8 is the structural schematic diagram of the optical lens in the experimental group three that the utility model embodiment provides；
Fig. 9 is the Illumination Distribution figure for the experimental group three that the utility model embodiment provides；
Figure 10 is the partial enlarged view of the Illumination Distribution figure for the control group that the utility model embodiment provides；
Figure 11 is the partial enlarged view of the Illumination Distribution figure for the experimental group one that the utility model embodiment provides.
In figure：
The lens of 10- control groups；20- convex lenses；The grid regions 21-；
22- convex sides；23- planar sides；30- area sources.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Embodiment one
As shown in Figure 1 and Figure 4, the optical lens that the utility model embodiment provides, including：Convex lens 20, convex lens 20
Curved sides include grid regions 21, grid regions 21 are spliced by the transmission plane of multiple polygons.
The optical lens of the utility model embodiment is applied in lighting device, when by the optics of the utility model embodiment
It is convex due in the optical lens that the utility model embodiment provides when lens are applied in the optical module of the car light of automobile
The curved sides of lens 20 include grid regions 21, and grid regions 21 are spliced by the transmission plane of multiple polygons, that is to say, that are made
The curved surface being spliced with multiple transmission planes replaces the smooth curved surface of convex lens 20 in the prior art, since light is via every
The subregion that a transmission plane projects the hot spot that the hot spot angle generated is different, and multiple transmission planes project is overlapped,
To artificial generation light type deviation, and this light type deviation is utilized, so that light type is with smaller angle, horizontally or vertically
Diffusion.
It, can be with when the optical lens for providing the utility model embodiment is applied to have by the dipped headlight of line function
Be effectively improved gradient of the dipped beam by line, chromatic dispersion problem, with reduce dipped beam by line gradient so that it is soft by line boundary,
And mitigate chromatic dispersion problem.When the optical lens for providing the utility model embodiment is applied to matrix form headlight, Ke Yigai
Linking uniformity between kind pixel hot spot.
In any of the above-described technical solution, further, convex lens 20 can be planoconvex spotlight, biconvex lens or just curved
Month lens.Lens are made of clear material, and lens material can be transparent glass, PMMA (polymethyl
Methacrylate, polymethyl methacrylate), PC (Polycarbonate, makrolon), transparent resin or transparent silica gel.
Different according to the type of convex lens 20, the curved sides on convex lens 20 can be convex side 22 or concave side.Specifically
Ground：
The side of planoconvex spotlight is convex side 22, and side is planar side 23, and grid surface is set to the convex side of planoconvex spotlight
22；The both sides of biconvex lens are convex sides 22, and grid surface can be set to any side；The side of positive meniscus lens is convex surface
Side 22, side are concave sides, and grid surface can be set to any side.
When convex lens 20 to be set in car light, convex lens 20 is inside towards the side of light source, and corresponding surface is
Inner surface, convex lens 20 are outside away from the side of light source, and corresponding surface is outer surface.When convex lens 20 is planoconvex spotlight
When, outwardly, inwardly, grid surface is set to the outer surface (convex side 22) of convex lens 20 to planar side 23 to convex side 22；Convex lens 20
For biconvex lens or positive meniscus lens when, the inner surface of biconvex lens and outer surface are convex side 22, positive meniscus lens
Inner surface is concave side, and outer surface is convex side 22, and grid surface can both be set to the inner surface of convex lens 20, and can also be arranged
In the outer surface of convex lens 20.
In the preferred embodiment of the present embodiment, grid regions 21 are located at the outer surface of convex lens 20.
Can only include a convex lens 20 in above-mentioned optical lens, alternatively, above-mentioned optics in the optical module of car light
Lens can be multi-stage lens, including multiple lens, at this point, the above-mentioned convex lens 20 for being provided with grid regions 21 is located at multi-stage lens
Middle outermost, that is, the side farthest apart from light source.
In convex lens 20 provided in this embodiment, the convex side 22 of convex lens 20 can be spherical surface or aspherical.
In the grid regions of convex lens 20 21, the shape of each transmission plane can be identical, or is provided in grid regions 21
The transmission plane of multiple and different shapes, transmission plane can be square, rectangle, triangle, prismatic, trapezoidal etc..
Grid regions 21 can be located at the whole surface of the convex side 22 of convex lens 20, or be only located at the middle part of convex side 22
Region, or it is only located at the fringe region of convex side 22.
In a kind of specific implementation mode of the present embodiment, the shape of each transmission plane is identical, and the shape of transmission plane
It is square.When the shape of transmission plane is square, it is preferable that the length of side of transmission plane is 0.1mm-5mm.Certainly, thoroughly
The length of side of optical plane can be selected according to demand.
Grid regions 21 are set by the convex side 22 to convex lens 20, make the light type of projection that becoming for low-angle diffusion be presented
Gesture.And grid is thicker, diffusion angle is bigger；Grid is thinner, and diffusion angle is smaller.It adjusts grid thickness and (changes grid regions 21
The length of side of iuuminting plane), the angle of light type diffusion can be very easily controlled, and result is simulated and is expected.Diffusion
Direction adjustment can also be facilitated by the design of grid (such as changing shape of transmission plane)；With the dipped beam by line
When design, gradient and reduction dispersion can be simply adjusted.When matrix form headlight designs, can make to be connected more between pixel hot spot
Uniformly.
When concrete application, the diffusion angle of car light can be changed by replacing the convex lens 20 with different grid regions 21
Or dispersal direction.
Have for the lens in further proving optical lens provided in this embodiment compared with prior art reduce gradient and
The effect of uniform light makes following experiment：
This experiment uses one group of control group and three groups of experimental groups, the lens in control group and experimental group to select convex side 22
For the planoconvex spotlight of spherical surface, and the size of lens is identical, and focal length is identical.
As shown in Fig. 2, in control group, it is the lens 10 of smooth surface to select convex side 22.
In three experimental groups, select convex lens 20 provided in this embodiment, and grid regions 21 may be contained within it is entire convex
The shape of surface side 22, the transmission plane in grid regions 21 is rectangle.Difference lies in：
As shown in figure 4, in experimental group one, the length and width of transmission plane are 1mm；
As shown in fig. 6, in experimental group two, the length and width of transmission plane are 2mm；
As shown in figure 8, in experimental group three, a length of 2mm of transmission plane, width 1mm.
During the experiment, as shown in Figure 1, using area source 30 along the lens 10 of the directions optical axis B irradiation control group and in fact
Each convex lens 20 for testing group is being screen to be arranged at 25m, and record the photograph in lens projects to screen at a distance from area source 30
Spend distribution map, wherein area source 30 is arranged in the focus of lens, and the length and width of area source 30 are 2mm, the lens of control group
10 and the focal length of each convex lens 20 of experimental group be 80mm.
The edge of the Illumination Distribution figure of comparison diagram 3 and the hot spot in Fig. 5, Fig. 7, Fig. 9 can obtain, be projected in contrast groups
Hot spot edge boundary it is more clearly demarcated, and the boundary at the hot spot edge that three groups of experimental groups project is more fuzzy, so as to
The gradient for reducing hot spot, makes to be connected evenly between pixel hot spot.
In figure 3, spot size is 0.8 ° * 0.8 °；In Figure 5, spot size is 1 ° * 1 °；In the figure 7, spot size
It is 1.4 ° * 1.4 °；In fig.9, spot size is 1.4 ° * 1 °.It can be obtained from above, optical lens provided in this embodiment can be with
Hot spot diffusion angle is adjusted, and grid is thicker, diffusion angle is bigger；Grid is thinner, and diffusion angle is smaller.
As shown in Figure 10 and Figure 11, in Fig. 10 it can be seen that several transversely with longitudinal stripe region, fringe area
Light intensity to be weaker than the light intensity in other regions and show the illumination of the lens 10 of control group since there are this fringe areas
It spends uneven.
In Fig. 10, the areas A are one of longitudinal stripe region.In fig. 11, it is substantially not visible vertical or horizontal
Fringe area, therefore illustrate, use optical lens provided in this embodiment that can illuminance be more uniformly distributed.
In addition, in Figure 10 and Figure 11, toroid is the isopleth of light intensity, and in Fig. 10, isopleth is irregular, and is had
There is more acute variation region；And in fig. 11, isopleth is relatively more smooth, and acute variation region is opposite to be reduced, to
Further explanation uses optical lens provided in this embodiment that can illuminance be more uniformly distributed.
Embodiment two
The utility model embodiment two proposes a kind of car light, and above-described embodiment one such as is provided in the optical module of car light and is carried
The optical lens of confession.
Since the curved sides for the convex lens being arranged in optical lens are provided with grid regions, grid regions are by multiple transmission planes
It is spliced, therefore, when the car light that the present embodiment two provides is with by the dipped headlight of line function, compared with the existing technology
In there is dipped headlight by line function, the car light that the present embodiment two provides can be effectively improved gradient of the dipped beam by line, color
The problem of dissipating, with reduce dipped beam by line gradient so that it is soft by line boundary, and mitigate chromatic dispersion problem.
When the present embodiment two provide car light be matrix form headlight when, compared with the existing technology in matrix form headlight, this
In the car light that embodiment two provides, the boundary line of each pixel hot spot is more soft, so as to improve the rank between pixel hot spot
Connect uniformity.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means in this practicality newly
Within the scope of type and form different embodiments.For example, in claims above, embodiment claimed
One of arbitrary mode can use in any combination.The information for being disclosed in the background technology part is merely intended to deepen
Understanding to the general background technology of the utility model, and be not construed as recognizing or implying in any form that the information is constituted
The prior art known to those skilled in the art.
Claims (9)
1. a kind of optical lens, which is characterized in that including：The curved sides of convex lens, the convex lens include grid regions, the net
Lattice area is spliced by the transmission plane of multiple polygons；
The convex lens is inside towards the side of light source, and corresponding surface is inner surface, and the convex lens deviates from the one of light source
Side is outside, and corresponding surface is outer surface；The grid regions are set to inner surface or the outer surface of the convex lens.
2. optical lens according to claim 1, which is characterized in that the shape of each transmission plane is identical and described
The shape of transmission plane is square.
3. optical lens according to claim 2, which is characterized in that the length of side of the transmission plane is 0.1mm-5mm.
4. optical lens according to claim 1, which is characterized in that the grid regions include a variety of light transmissions of different shapes
Plane.
5. optical lens according to claim 1, which is characterized in that described convex when the optical lens is multi-stage lens
Lens are located at side of the optical lens far from light source.
6. optical lens according to claim 1, which is characterized in that the grid regions are located at the convex side of the convex lens
Central region.
7. optical lens according to claim 1, which is characterized in that the convex lens be planoconvex spotlight, biconvex lens or
Person's positive meniscus lens.
8. optical lens according to claim 7, which is characterized in that the convex lens is that biconvex lens or positive bent moon are saturating
When mirror, the grid surface is located at the inner surface of the lens.
9. a kind of car light, which is characterized in that be arranged just like claim 1-8 any one of them in the optical module of the car light
Optical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820017354.0U CN208074871U (en) | 2018-01-04 | 2018-01-04 | Optical lens and car light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820017354.0U CN208074871U (en) | 2018-01-04 | 2018-01-04 | Optical lens and car light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208074871U true CN208074871U (en) | 2018-11-09 |
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ID=64034771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820017354.0U Active CN208074871U (en) | 2018-01-04 | 2018-01-04 | Optical lens and car light |
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| Country | Link |
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| CN (1) | CN208074871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036278A (en) * | 2018-01-04 | 2018-05-15 | 上海小糸车灯有限公司 | Optical lens and car light |
| WO2020244080A1 (en) * | 2019-06-05 | 2020-12-10 | 华域视觉科技(上海)有限公司 | Vehicle light optical element, vehicle light module, vehicle headlight, and vehicle |
-
2018
- 2018-01-04 CN CN201820017354.0U patent/CN208074871U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036278A (en) * | 2018-01-04 | 2018-05-15 | 上海小糸车灯有限公司 | Optical lens and car light |
| WO2020244080A1 (en) * | 2019-06-05 | 2020-12-10 | 华域视觉科技(上海)有限公司 | Vehicle light optical element, vehicle light module, vehicle headlight, and vehicle |
| US11306891B1 (en) | 2019-06-05 | 2022-04-19 | Hasco Vision Technology Co., Ltd. | Vehicle light optical element, vehicle light module, vehicle headlight and vehicle |
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Address after: 201800 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee after: Hua Yu vision technology (Shanghai) Co., Ltd. Address before: 201800 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee before: Xiaoxi Car Lights Co., Ltd., Shanghai |