CN207018852U - A kind of LED reflection lens - Google Patents
A kind of LED reflection lens Download PDFInfo
- Publication number
- CN207018852U CN207018852U CN201720903764.0U CN201720903764U CN207018852U CN 207018852 U CN207018852 U CN 207018852U CN 201720903764 U CN201720903764 U CN 201720903764U CN 207018852 U CN207018852 U CN 207018852U
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- China
- Prior art keywords
- reflection lens
- led reflection
- led
- bottom wall
- groove
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of LED reflection lens, including bottom wall, perisporium and roof, it is characterised in that the bottom wall center section is recessed to form the groove of avoidance LED upwards, the roof of the groove is the first incidence surface, the perisporium of the groove is the second incidence surface, and the perisporiums of the LED reflection lens is exiting surface, and the roofs of LED reflection lens is to lower recess is in horn-like fully reflecting surface, the bottom wall is square, the bottom wall is square, the long 14mm, a width of 14mm of the square bottom wall.The LED reflection lens are small relative to prior art size so that PCB used width is smaller, and lamp bar cost can be greatly reduced.
Description
Technical field
It the utility model is related to a kind of LED reflection lens.
Background technology
LED liquid-crystal display has that green, low in energy consumption, display effect is more preferable relative to traditional CRT monitor
The features such as, therefore extensively favored by people.And backlight module is one of key component in LED liquid-crystal display, due to liquid crystal surface
Plate does not light in itself, it is therefore desirable to which backlight module provides light source to realize that image is shown for liquid crystal panel, and lamp bar is backlight mould
Important devices directly luminous in group.
At present, straight-down negative LED light bar proportion in backlight module is more come bigger, and existing collocation straight-down negative LED
The reflective lens size of bar is larger（Length and width is：17mmX17mm）So that PCB used wider width, the cost of lamp bar can
It is smaller that space drops.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of small LED reflection lens of size so that PCB's used
Width is smaller, and lamp bar cost can be greatly reduced.
The technical solution of the utility model is：A kind of LED reflection lens, including bottom wall, perisporium and roof, its feature exist
It is recessed to form the groove for avoiding LED upwards in, the bottom wall center section, the roof of the groove is the first incidence surface, institute
The perisporium for stating groove is the second incidence surface, and the perisporiums of the LED reflection lens is exiting surface, the roofs of the LED reflection lens be to
Lower recess is in horn-like fully reflecting surface, and the bottom wall is square, a length of 14mm, a width of 14mm of the square bottom wall.
The exiting surface includes Part I, Part II and the Part III being sequentially connected from top to bottom, Part I
It is connected with the roof of the LED reflection lens, Part III is connected with the bottom wall of LED reflection lens.
The cross-sectional area of the groove gradually increases on direction from top to bottom.
The center section of first incidence surface is in horn-like curved surface for what is be recessed upwards.
The LED reflection lens are the symmetrical rotary structure in axis.
The bottom wall of the LED reflection lens is provided with feet.
The utility model proposes LED reflection lens it is small relative to prior art size so that PCB used width compared with
Small, lamp bar cost can be greatly reduced.
Brief description of the drawings
Fig. 1 is the sectional structure chart of LED reflection lens in the utility model embodiment.
Fig. 2 is that LED reflection lens apply the schematic diagram in backlight module in the utility model embodiment.
Fig. 3 is the structure chart of LED reflection lens in the utility model embodiment.
Embodiment
Such as Fig. 1, the LED reflection lens that are provided in the utility model embodiment, the LED reflection lens are entity and are axis
The symmetrical rotary structure of line, for changing the light distribution of LED in LED light bar.The LED reflection lens are presented
Optical effect it is consistent with existing reflective lens.
The LED reflection lens include bottom wall, perisporium and roof, and the center section of bottom wall 10 of the LED reflection lens is concave up
The groove 11 for being formed and avoiding LED is fallen into, the exiting surface of LED is circle.The roof of groove 11 is the first incidence surface 111, groove
11 perisporium is the second incidence surface 112, and the light that LED is sent enters through the first incidence surface 111 and the second incidence surface 112 should
LED reflection lens.The perisporium of the LED reflection lens is exiting surface 20, and the roofs of the LED reflection lens is to lower recess is in loudspeaker
The fully reflecting surface 30 of shape, the roof of the LED reflection lens are totally reflected to the light that LED is sent.
The bottom wall of the LED reflection lens is square, a length of 14mm, a width of 14mm, from top to bottom of the square bottom wall
Direction on bottom wall cross-sectional area it is maximum.
Exiting surface 20 includes Part I 21, Part II 22 and the Part III 23 being sequentially connected from top to bottom, light
It can be projected from Part I 21, Part II 22 and Part III 23 so that the dissipating effect of light is more preferable, anti-from the LED
The light for penetrating lens injection is more uniform.Part I 21 is connected with the fully reflecting surface of the LED reflection lens, Part III 23 with
The bottom wall connection of the LED reflection lens.The vertical transversal of Part I 21 is the first curve, and it is bent for second that Part II 22 indulges transversal
Line, the vertical transversal of Part III 23 is the 3rd curve, and the first curve, the second curve and the 3rd bent curvature of a curve differ.
Such as Fig. 2, the principle of the LED reflection lens is：The light that LED 40 is sent divides two parts to project, a part of light
Fully reflecting surface is reached after incidence surface reflects, and exiting surface is reached after fully reflecting surface reflects and changes direction, then is rolled over through exiting surface
Projected after penetrating；Another part light directly reaches exiting surface after incidence surface reflects, then is projected after exiting surface reflects.In reality
Because the light projected after exiting surface reflects can be towards the oblique upper and obliquely downward of the LED reflection lens, backlight mould in
The diffuser plate 50 of group is arranged on the top of the LED reflection lens, the light meeting so projected towards the oblique upper of the LED reflection lens
Diffuser plate 50 is reached, and the light needs projected towards the obliquely downward of the LED reflection lens are configured below the LED reflection lens
Reflecting paper 60 reflect after change direction and reach the diffuser plate 50 of backlight module.
Such as Fig. 1, the cross-sectional area of groove 11 gradually increases on direction from top to bottom.The centre of first incidence surface 111
Part is in horn-like curved surface for what is be recessed upwards.
Such as Fig. 3, the bottom wall 10 of the LED reflection lens is provided with feet 12, for the LED reflection lens to be positioned over into LED
On bar.
Only to illustrate design of the present utility model, one of ordinary skill in the art's specific embodiment above exists
Various deformation and change can be made under design of the present utility model, these deformations and change are included in guarantor of the present utility model
Within the scope of shield.
Claims (6)
1. a kind of LED reflection lens, including bottom wall, perisporium and roof, it is characterised in that the bottom wall center section is recessed upwards
The groove for avoiding LED is formed, the roof of the groove is the first incidence surface, and the perisporium of the groove is the second incidence surface, should
The perisporium of LED reflection lens is exiting surface, the roofs of the LED reflection lens to lower recess to be in horn-like fully reflecting surface,
The bottom wall is square, a length of 14mm, a width of 14mm of the square bottom wall.
2. LED reflection lens according to claim 1, it is characterised in that the exiting surface includes successively connecting from top to bottom
Part I, Part II and the Part III connect, Part I are connected with the roof of the LED reflection lens, Part III
It is connected with the bottom wall of LED reflection lens.
3. LED reflection lens according to claim 1, it is characterised in that the cross-sectional area of the groove is from top to bottom
Direction on gradually increase.
4. LED reflection lens according to claim 3, it is characterised in that the center section of first incidence surface be to
Upper depression is in horn-like curved surface.
5. LED reflection lens according to claim 1, it is characterised in that the LED reflection lens are that axis is symmetrical
Rotary structure.
6. LED reflection lens according to claim 1, it is characterised in that the bottom wall of the LED reflection lens is provided with pad
Pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903764.0U CN207018852U (en) | 2017-07-25 | 2017-07-25 | A kind of LED reflection lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903764.0U CN207018852U (en) | 2017-07-25 | 2017-07-25 | A kind of LED reflection lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018852U true CN207018852U (en) | 2018-02-16 |
Family
ID=61481588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720903764.0U Active CN207018852U (en) | 2017-07-25 | 2017-07-25 | A kind of LED reflection lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018852U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775553A (en) * | 2018-06-19 | 2018-11-09 | 苏州欧普照明有限公司 | A kind of lens and light source module group |
| WO2020078475A1 (en) * | 2018-10-18 | 2020-04-23 | 欧普照明股份有限公司 | Light distribution element and lamp |
| CN112445028A (en) * | 2019-08-30 | 2021-03-05 | 莫列斯有限公司 | Reflection diffusion lens and light emitting module comprising same |
-
2017
- 2017-07-25 CN CN201720903764.0U patent/CN207018852U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775553A (en) * | 2018-06-19 | 2018-11-09 | 苏州欧普照明有限公司 | A kind of lens and light source module group |
| CN108775553B (en) * | 2018-06-19 | 2023-07-25 | 苏州欧普照明有限公司 | Lens and light source module |
| WO2020078475A1 (en) * | 2018-10-18 | 2020-04-23 | 欧普照明股份有限公司 | Light distribution element and lamp |
| CN112445028A (en) * | 2019-08-30 | 2021-03-05 | 莫列斯有限公司 | Reflection diffusion lens and light emitting module comprising same |
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