CN206669627U - A kind of flashlight lens of oval lines - Google Patents
A kind of flashlight lens of oval lines Download PDFInfo
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- CN206669627U CN206669627U CN201720255858.1U CN201720255858U CN206669627U CN 206669627 U CN206669627 U CN 206669627U CN 201720255858 U CN201720255858 U CN 201720255858U CN 206669627 U CN206669627 U CN 206669627U
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Abstract
The utility model system provides a kind of flashlight lens of oval lines, is related to flashlight lens field.The utility model includes lens, and the bottom of lens is the plane of incidence, and lensed tip is exit facet, and the plane of incidence is provided with Fresnel lines, and it is oval with center that Fresnel lines includes several；Plane right-angle coordinate x y, plane right-angle coordinate x y origin is set to be overlapped with the central point of lens on the plane of incidence, Fresnel lines is on x-axis or y-axis into axial symmetry relation.The hot spot that the utility model is formed compresses or stretched in a dimension, form the hot spot of class rectangle, the rectangular field that can be shot with mobile phone matches, the emergent light of LED chip is set to focus mostly in effective lighting region, the utilization rate of energy can be effectively improved, hot spot will reach same brightness and uniformity, it is only necessary to smaller power, can effectively reduce the loss of energy.
Description
Technical field
Flashlight lens field is the utility model is related to, specifically discloses a kind of flashlight lens of oval lines.
Background technology
LED luminous efficiency is high, power consumption is small, service life is long, safety, is a kind of reliable light source of environmental protection, extensively should
For each display lighting field.Mobile phone is instrument essential in the modern life, has merged various functions, wherein
One is exactly camera function, is taken pictures in the environment of insufficient light, it is necessary to there is the cooperation of flash lamp, mobile phone flashlight is usually
LED chip fit lens use.
Existing flashlight lens, comprising one or plurality of LEDs chip, it is combined with circular or square lens, lens one
As all use Fresnel Lenses, corresponding lines is substantially the Fresnel line of circle, the illumination light ultimately formed on single LEDs
Spot is all the symmetrical hot spot for approaching circle, and mobile phone shooting photo, image are all largely the images of rectangle, are using flash lamp
During with the use of mobile phone shoot function, as shown in figure 1, the illumination zone of flash lamp is more than the visual field of camera, cause flash lamp
The efficiency of light energy utilization it is relatively low.
Utility model content
Based on this, it is necessary to for prior art problem, there is provided a kind of flashlight lens of oval lines, make the light to be formed
Spot is in class rectangle, and the visual field that can be shot with mobile phone matches, and the utilization rate of luminous energy is high.
To solve prior art problem, the utility model discloses a kind of flashlight lens of oval lines, including lens, thoroughly
The bottom of mirror is the plane of incidence, and lensed tip is exit facet, and the plane of incidence is provided with Fresnel lines, and Fresnel lines includes several
It is oval with center；Plane right-angle coordinate x-y is set on the plane of incidence, in plane right-angle coordinate x-y origin and lens
Heart point overlaps, and Fresnel lines is on x-axis or y-axis into axial symmetry relation.
Further, the central point of Fresnel lines overlaps with the central point of lens.
Further, it is provided with LED chip below the central point of Fresnel lines.
Further, two focuses of Fresnel lines are all in x-axis.
Further, lens are on lens mount.
LED chip is arranged to the underface of the plane of incidence, the light that LED chip is sent is incided on the plane of incidence, on the plane of incidence
Fresnel lines by the hot spot that LED chip is formed to x-axis direction stretch, to y-axis direction compress, LED chip is passed through lens
The hot spot of formation is in the shape of class rectangle, is matched with the shape height of mobile phone shooting visual field.
The beneficial effects of the utility model are：The utility model discloses a kind of flashlight lens of oval lines, sets and dodges
The lines of light lamp lens is formed by one group with center ellipse, and the hot spot of formation compresses or stretched in a dimension, that is, forms class square
The hot spot of shape, the rectangular field that can be shot with mobile phone match, and the emergent light of LED chip is focused mostly in effective lighting region
In, the utilization rate of energy can be effectively improved, hot spot will reach same brightness and uniformity, it is only necessary to smaller power, can
Effectively reduce the loss of energy.
Brief description of the drawings
Fig. 1 is that the hot spot formed in the prior art shoots the relation schematic diagram of visual field with mobile phone.
Fig. 2 is the hot spot schematic diagram that flash lamp is formed in the prior art.
Fig. 3 is present invention looks up structural representation of the present utility model.
Fig. 4 is the cross-sectional view of the utility model x-axis along Fig. 3.
Fig. 5 is the relation schematic diagram that the hot spot that the utility model is formed shoots visual field with mobile phone.
Fig. 6 is the hot spot schematic diagram that the utility model is formed.
Reference is：Lens 10, the plane of incidence 11, exit facet 12, Fresnel lines 20, LED chip 30.
Embodiment
For feature of the present utility model, technological means and the specific purposes reached, function can be further appreciated that, below
The utility model is described in further detail with embodiment with reference to accompanying drawing.
Referring to figs. 1 to Fig. 6.
The utility model discloses a kind of flashlight lens of oval lines, including lens 10, and lens 10 are located at lens mount 13
On, the bottom of lens 10 is the plane of incidence 11, and the top of lens 10 is exit facet 12, and the plane of incidence 11 is provided with Fresnel lines 20, luxuriant and rich with fragrance
Nie Er lines 20 includes several with center ellipse, and two focuses of Fresnel lines 20 are all in x-axis；Set on the plane of incidence 11
Plane right-angle coordinate x-y is put, plane right-angle coordinate x-y origin overlaps with the central point of lens 10, Fresnel lines 20
On x-axis or y-axis into axial symmetry relation, LED chip 30 is arranged at the lower section of lens 10.
The light that LED chip 30 is sent enters lens 10 from the plane of incidence 11, and x-axis passes through m bar Fresnels lines 20, and y-axis passes through n
The first Fresnel of bar lines 20, m<N, LED chip 30 are pressed in the y-axis direction through the hot spot of the formation of Fresnel lines 20
Contracting, stretch in the direction of the x axis, thus the hot spot that the emergent light of LED chip 30 is formed by whole lens 10 is in y-axis direction
Upper that compression occurs, stretches in the direction of the x axis, the hot spot of formation is in class rectangle, then by lens of the present utility model and mobile phone
Camera matching is set, i.e., x-axis direction is shot into the wider direction of visual field with mobile phone matches setting, and y-axis direction and mobile phone are clapped
The narrower direction matching of visual field is taken the photograph to set.
To make hot spot of the raising Jing Guo lens forming and the face matching degree of mobile phone shooting visual field, Fresnel lines 20
Central point overlaps with the central point of lens 10, is provided with LED chip 30 below the central point of Fresnel lines 20, LED chip 30 is sent out
The light gone out can be incided uniformly on the plane of incidence 11, i.e., the light that LED chip 30 is sent can uniformly incide Fresnel lines 20
On, by Fresnel lines 20 by the light that LED chip 30 is sent toward x-axis direction Uniform Tension, toward y-axis direction homogeneous compaction, shape
Into hot spot more matched with the visual field that mobile phone is shot, and brightness is more uniform, can effectively improve the light that LED chip 30 is sent
Different Fresnel lines is fully uniformly corresponded to, the utilization rate for the luminous energy that LED chip 30 is sent can be effectively improved.
The utility model includes one group of concentric oval lines, hot spot can be stretched or compressed in a dimension,
So as to form the hot spot of class rectangle, visual field that can be effectively with mobile phone shooting matches, and the emergent light of LED chip is concentrated on
In effective lighting region, the utilization rate of luminous energy is effectively improved.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (5)
1. a kind of flashlight lens of oval lines, it is characterised in that including lens (10), the bottom of the lens (10) is
The plane of incidence (11), lens (10) top is exit facet (12), and the plane of incidence (11) is provided with Fresnel lines (20), institute
Stating Fresnel lines (20) includes several with center ellipse；Plane right-angle coordinate x-y is set on the plane of incidence (11),
The origin of the plane right-angle coordinate x-y overlaps with the central point of the lens (10), and the Fresnel lines (20) is on x
Axle or y-axis are into axial symmetry relation.
A kind of 2. flashlight lens of oval lines according to claim 1, it is characterised in that the Fresnel lines
(20) central point overlaps with the central point of the lens (10).
A kind of 3. flashlight lens of oval lines according to claim 1, it is characterised in that the Fresnel lines
(20) LED chip (30) is provided with below central point.
A kind of 4. flashlight lens of oval lines according to claim 1, it is characterised in that the Fresnel lines
(20) two focuses are all in x-axis.
5. the flashlight lens of a kind of oval lines according to claim 1, it is characterised in that the lens (10) set
In on lens mount (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255858.1U CN206669627U (en) | 2017-03-16 | 2017-03-16 | A kind of flashlight lens of oval lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255858.1U CN206669627U (en) | 2017-03-16 | 2017-03-16 | A kind of flashlight lens of oval lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206669627U true CN206669627U (en) | 2017-11-24 |
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ID=60376786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720255858.1U Active CN206669627U (en) | 2017-03-16 | 2017-03-16 | A kind of flashlight lens of oval lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206669627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397750A (en) * | 2018-04-03 | 2018-08-14 | 东莞市美光达光学科技有限公司 | A kind of uniform efficiency flash lamp lens module of light distribution |
| CN112114471A (en) * | 2019-06-20 | 2020-12-22 | 北京小米移动软件有限公司 | Flash lamp lampshade of mobile terminal, flash lamp module and mobile terminal |
-
2017
- 2017-03-16 CN CN201720255858.1U patent/CN206669627U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397750A (en) * | 2018-04-03 | 2018-08-14 | 东莞市美光达光学科技有限公司 | A kind of uniform efficiency flash lamp lens module of light distribution |
| CN108397750B (en) * | 2018-04-03 | 2024-09-20 | 东莞市美光达光学科技有限公司 | Uniform-light-distribution high-efficiency flash lamp lens module |
| CN112114471A (en) * | 2019-06-20 | 2020-12-22 | 北京小米移动软件有限公司 | Flash lamp lampshade of mobile terminal, flash lamp module and mobile terminal |
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