CN207364980U - A kind of LED lens - Google Patents
A kind of LED lens Download PDFInfo
- Publication number
- CN207364980U CN207364980U CN201721440182.XU CN201721440182U CN207364980U CN 207364980 U CN207364980 U CN 207364980U CN 201721440182 U CN201721440182 U CN 201721440182U CN 207364980 U CN207364980 U CN 207364980U
- Authority
- CN
- China
- Prior art keywords
- lens
- lens body
- led
- light
- led lens
- Prior art date
- 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.)
- Active
Links
Abstract
The utility model embodiment discloses a kind of LED lens, including：First lens body and the second lens body, first lens body includes incidence surface and the first light-emitting surface, second lens body includes reflecting surface and the second light-emitting surface, and for the lateral surface of first lens body around ellipsoidal structures are formed as, its lateral surface forms the first light-emitting surface.By the above-mentioned means, the utility model embodiment can improve the uniform illumination degree of the backlight module with LED lens encapsulation LED lamp bead, optimize lighting effect.
Description
Technical field
The utility model embodiment is related to lens art, more particularly to a kind of LED lens.
Background technology
On the market, the lens used applied to the LED lamp bead of backlight module are mostly sphere lens, and sphere lens only exist
When LED lamp bead gap ratio is 1, best lighting effect is can be only achieved, if LED lamp beads gap ratio is not 1, at this time using spherical
The backlight module of the LED lamp bead of lens packages occurs the even situation of uneven illumination, and hot spot is dark between the larger lamp bead of spacing,
Then can be relatively bright away from hot spot between less lamp bead, lighting effect is poor.
Utility model content
The utility model embodiment is mainly solving the technical problems that provide a kind of LED lens, by ellipse around being formed
The lateral surface of round shape structure forms the light-emitting angle of the lens adjustment LED lamp bead of the first light-emitting surface, improves the illumination of backlight module
The uniformity, optimizes lighting effect.
In order to solve the above technical problems, the technical solution that the utility model embodiment uses is：A kind of LED is provided
Lens, including：
First lens body and the second lens body, the first lens body include incidence surface and the first light-emitting surface, and second is saturating
Mirror main body includes reflecting surface and the second light-emitting surface, and the lateral surface of first lens body, which is surround, is formed as ellipsoidal structures, its
Lateral surface forms the first light-emitting surface.
Alternatively, the lateral surface is more than or equal to 0.9 around the ratio between short major axis of ellipsoidal structures formed and is less than 1.
Alternatively, the first lens body bottom opens up host cavity, and the host cavity side wall is incidence surface.
Alternatively, the first lens body bottom also sets up Fresnel surface, and the Fresnel surface is around the host cavity.
Alternatively, for the lateral surface of second lens body around toroidal structure is formed as, its lateral surface forms second
Light-emitting surface.
Alternatively, recessed formation reflecting surface at the top of second lens body, the reflecting surface is fully reflecting surface, for increasing
Large spot.
Alternatively, first lens body is gradually reduced along the first lens body to the second lens body direction.
Alternatively, the LED lens further include the fixed part set around the first lens body side wall, the fixed position
In the lower section of the first light-emitting surface, outer wheels profile surrounds square.
Alternatively, the first lens body side wall exceeds outside the fixed part on short-axis direction and/or long axis direction
Contouring line surrounds square.
In order to solve the above technical problems, another technical solution that the utility model embodiment uses is：There is provided a kind of
Backlight module, including：
LED lamp bead, further includes above-described LED lens, and the LED lens are fixed on the LED lamp bead by suspension column
Top so that the LED lamp bead is contained in the host cavity and the LED lamp beads and host cavity center overlapping of axles.
The beneficial effect of the utility model embodiment is：It is different from the situation of the prior art, the utility model embodiment party
Formula provides a kind of LED lens, including：First lens body and the second lens body, the first lens body include incidence surface and the
One light-emitting surface, the second lens body include reflecting surface and the second light-emitting surface, and the lateral surface of first lens body, which is surround, to be formed
For ellipsoidal structures, its lateral surface forms the first light-emitting surface.LED lens described in the utility model, by oval around being formed
The lateral surface of shape structure forms the light-emitting angle of the lens adjustment LED lamp bead of the first light-emitting surface so that is encapsulated with the LED lens
The backlight module uniform illumination of LED lamp bead, optimizes lighting effect.
Brief description of the drawings
One or more embodiments are illustrative by corresponding attached drawing, these exemplary illustrations not structure
The restriction of paired embodiment, the element for having same reference numbers label in attached drawing is expressed as similar element, unless there are special
Declare, composition does not limit the figure in attached drawing.
Fig. 1 is a kind of structure diagram for LED lens that the utility model embodiment provides；
Fig. 2 is a kind of structure diagram for another angle of LED lens that the utility model embodiment provides；
Fig. 3 is the front view of the LED lens shown in Fig. 1；
Fig. 4 is the side view of the LED lens shown in Fig. 1；
Fig. 5 is the bottom view of the LED lens shown in Fig. 1；
Fig. 6 is the top view of the LED lens shown in Fig. 1；
Fig. 7 is the sectional view in the LED lens A-A directions shown in Fig. 1；
Fig. 8 is the sectional view in the LED lens B-B directions shown in Fig. 1；
Fig. 9 is a kind of structure diagram for backlight module that another embodiment of the utility model provides.
Referring to Fig. 1 to Fig. 9,1 is LED lens, and 10 be fixed part, and 101 be suspension column, and 20 be the first lens body, and 201 be
One light-emitting surface, 202 be host cavity, and 203 be incidence surface, and 204 be Fresnel surface, and 30 be the second lens body, and 301 go out for second
Smooth surface, 302 be reflecting surface, and 2 be LED lamp bead.
Embodiment
For the ease of understanding the utility model, with reference to the accompanying drawings and detailed description, the utility model is carried out more
Detailed description.It should be noted that when element is expressed " being fixed on " another element, it can be directly in another element
Above or therebetween there may be one or more elements placed in the middle.When an element is expressed " connection " another element, it can
To be directly to another element or there may be one or more elements placed in the middle therebetween.This specification is used
Term " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, the skill of technical and scientific term all used in this specification with belonging to the utility model
The normally understood implication of technical staff in art field is identical.In the art used in the description of the utility model in this specification
Language is intended merely to the purpose of description specific embodiment, is not intended to limitation the utility model.Art used in this specification
Language "and/or" includes the arbitrary and all combination of one or more relevant Listed Items.
Embodiment one
Refering to Fig. 1 to Fig. 8, a kind of LED lens 1 of the utility model embodiment offer, including：
Fixed part 10, the first lens body 20 and the second lens body 30, wherein, second lens body 30 is arranged at
The top of first lens body 20,20 and second lens body of the first lens body, the 30 center overlapping of axles.
Fixed part 10 is set around 20 side wall of the first lens body, and 10 quantity of fixed part is 4, positioned at the first light-emitting surface
201 lower section (lower section be opposite first light-emitting surface 201 for), its outer wheels profile surround square, and the fixed part
10 bottom surfaces are located in the same horizontal plane with 20 bottom surface of the first lens body, and it is thick that 10 thickness of fixed part is less than the first lens body 20
Degree.In some other alternative embodiments, the outer wheels profile of the fixed part 10 can also be circular or rectangle.
Further, suspension column 101 is both provided with each 10 bottom surface of fixed part, for LED lens to be fixed.Can at other
In alternate embodiments, suspension column 101 can not be set in whole fixed parts 10, it is only solid in two of diagonal distribution wherein
Determine 10 bottom surface of portion and suspension column 101 is set, can also so reduce the design of fixed part accordingly.
First lens body 20 is gradually reduced along the first lens body to the second lens body direction, its lateral surface is around shape
As ellipsoidal structures, specifically, lateral surface is multiple ellipticities with identical central as a result, the center around what is formed
On the central axis of LED lens, the size of ellipsoidal structures is gradually reduced to the second lens body direction.As shown in fig. 6,
The transverse is 2a, short axle 2b, its be shown lateral surface around the major axis 2a of the maximum ellipsoidal structures formed and
The ratio between short axle 2b, short major axis b/a is more than or equal to 0.9 and is less than 1,20 yields of the first lens body produced in the proportion
It is higher, and the different backlight module of most of LED lamp bead gap ratio can be adapted to, it is not necessary to constantly change LED lens parameter,
Preferable lighting effect is obtained, wherein, preferred value is to be less than 1 more than or equal to 0.95, the hot spot hair that the ratio between the short major axis obtains
Light efficiency is optimal, such as：Major axis 2a is 17.86mm, and short axle 2b is that the ratio between 17.51mm, short major axis b/a are about 0.98, in excellent
In the range of choosing value, the LED lamp bead of LED lens encapsulation backlight module is used so that backlight module can obtain uniform illumination, light
According to the good hot spot of effect, and it is about the backlight module in the range of 0.75~1 that can be adapted to LED lamp bead gap ratio.
The lateral surface of first lens body 20 forms the first light-emitting surface 201, and first light-emitting surface 201 is free for ellipse
Curved surface, for being emitted the light that incidence surface 203 reflects, reflecting surface 302 reflects and Fresnel surface 204 is reflected or reflected so that
Hot spot increases,.
Further, the side wall of first lens body 20 exceeds fixed part on short-axis direction and/or long axis direction
10 outer wheels profiles surround it is square, concretely：If the side wall of the first lens body 20 exceeds fixed part on short-axis direction
10 outer wheels profiles surround square, i.e., 20 side wall of the first lens body on long axis direction and short-axis direction is beyond fixation
10 outer wheels profile of portion surround it is square, if alternatively, the side wall of the first lens body 20 exceeds fixed part 10 on long axis direction
Outer wheels profile surrounds square, i.e., 20 side wall of the first lens body only on long axis direction beyond fixed part 10 outside
Contour line surrounds square, and 20 side wall of the first lens body on short-axis direction may exceed may also be without departing from the fixation
10 outer wheels profile of portion surround it is square, this kind of mode can ensure 20 bottom surface of the first lens body set Fresnel surface 204
Reach best reflection, refraction effect and guarantee LED lens quality.In some alternative embodiments, it is also possible that long
20 side wall of the first lens body on direction of principal axis and short-axis direction surrounds square, phase without departing from 10 outer wheels profile of fixed part
That answers then needs to change the setting of Fresnel surface 204.
Host cavity 202 is opened up at 20 bottom center of the first lens body, the shape of cross section is circle, for housing
LED lamp bead, 202 side wall of host cavity are incidence surface 203, and the light sent for reflecting or reflecting LED lamp bead, this enters light
The top of face 203 is to the curved conical surface of lens body, can reflect the light that LED lamp bead is sent to reflecting surface 302.
Fresnel surface 204 is also set up in 20 bottom surface of the first lens body, which is set around host cavity 202,
The light that incidence surface 203 reflects can be reflected to light-emitting surface, and to the light that light-emitting surface reflective face 302 is reflected, is improved
Light extraction efficiency, reduces light leakage phenomena, that is, avoids the appearance of veiling glare, meanwhile, it is capable to adjust the brightness of local hot spot, improves hot spot
Uniformity.
For the lateral surface of second lens body 30 around toroidal structure is formed as, its lateral surface forms the second light-emitting surface 301,
For being emitted the light that incidence surface 203 reflects, reflecting surface 302 reflects and Fresnel surface 204 is reflected or reflected, second light extraction
Face 301 is traditional cylindrical type free form surface, can reduce the difficulty of processing of mould, and improve the production stability of LED lens
And production efficiency.In some alternative embodiments, second light-emitting surface 301 can also be along the first lens body to the
The circular conical surface free form surface that two lens body directions are gradually reduced.
The recessed formation reflecting surface 302 in the top of second lens body 30, as shown in fig. 7,302 central point of the reflecting surface is located at
On LED lens central axis, and 203 vertex correspondence of incidence surface, and 302 section profile line of the reflecting surface is outstanding arc
Line so that incident ray incidence angle is more than cirtical angle of total reflection C=arcsin (n2/n1), wherein, n2 is LED lens refractive index,
N1 is air refraction, and the LED lens refractive index n2 is more than the air refraction n1, i.e., described reflecting surface 302 is to be all-trans
Face is penetrated, the light that incidence surface 203 is reflected increases hot spot toward reflecting at a distance.
LED lens described above are integrally formed by mould, stable structure.
The beneficial effect of the utility model embodiment is：It is different from the situation of the prior art, the utility model embodiment party
Formula provides a kind of LED lens, including：First lens body and the second lens body, the first lens body include incidence surface and the
One light-emitting surface, the second lens body include reflecting surface and the second light-emitting surface, and the lateral surface of first lens body, which is surround, to be formed
For ellipsoidal structures, its lateral surface forms the first light-emitting surface.LED lens described in the utility model, by oval around being formed
The lateral surface of shape structure forms the light-emitting angle of the lens adjustment LED lamp bead of the first light-emitting surface so that is encapsulated with the LED lens
The backlight module uniform illumination of LED lamp bead, optimizes lighting effect.
Embodiment two
Refering to Fig. 9, the structure diagram for a kind of backlight module that another embodiment of the utility model provides, such as Fig. 9 institutes
Show, a kind of backlight module, including LED lamp bead 2, and the LED lens 1 (Fig. 9 does not show) described in embodiment one, the LED lens 1
The top of LED lamp bead 2 is fixed on by suspension column 101 so that the LED lamp bead 2 is just contained in the host cavity of LED lens 1
In 202, and 202 center overlapping of axles of the LED lamp bead 2 and host cavity.
2 quantity of LED lamp bead is no less than 1 and array arranges, and the line-spacing of adjacent LED lamp bead is y, arranges away from for x, when the line-spacing
When y is more than the row away from x, the major axis 2a of LED lens 1 is arranged on line-spacing direction, and the short axle 2b of LED lens 1 is arranged on row away from side
Arranged to, the LED lamp bead 2 it is related away from the ratio between the ratio between line-spacing x/y and short major axis b/a, if x/y is in the range of fit of LED lens 1
It is interior, then it need not modify to LED lens parameter, can also obtain preferable light-out effect, if x/y is beyond the suitable of LED lens 1
With scope, corresponding change is made to the ratio between short major axis, it is more easy.
When the line-spacing y is less than the row away from x, it is more than row away from x situations on the contrary, not repeating one by one herein with line-spacing y.
The beneficial effect of the utility model embodiment is：It is different from the situation of the prior art, the utility model embodiment party
Formula provides a kind of LED lens, including：First lens body and the second lens body, the first lens body include incidence surface and the
One light-emitting surface, the second lens body include reflecting surface and the second light-emitting surface, and the lateral surface of first lens body, which is surround, to be formed
For ellipsoidal structures, its lateral surface forms the first light-emitting surface.LED lens described in the utility model, by oval around being formed
The lateral surface of shape structure forms the light-emitting angle of the lens adjustment LED lamp bead of the first light-emitting surface so that is encapsulated with the LED lens
The backlight module uniform illumination of LED lamp bead, optimizes lighting effect.
It should be noted that the preferable implementation of the utility model is given in the specification and its attached drawing of the utility model
Mode, still, the utility model can be realized by many different forms, however it is not limited to the described implementation of this specification
Mode, these embodiments are not as the extra limitation to the utility model content, there is provided the purpose of these embodiments is to make
To the understanding more thorough and comprehensive of the disclosure of the utility model.Also, above-mentioned each technical characteristic continues to be mutually combined, formed
The various embodiments not being enumerated above, are accordingly to be regarded as the scope of the utility model specification record；Further, to this area
For those of ordinary skill, it can according to the above description be improved or be converted, and all these modifications and variations should all belong to
The protection domain of the appended claims for the utility model.
Claims (10)
- A kind of 1. LED lens, it is characterised in that including：First lens body (20) and the second lens body (30), the first lens Main body (20) includes incidence surface (203) and the first light-emitting surface (201), and the second lens body goes out including reflecting surface (302) and second Smooth surface (301), around ellipsoidal structures are formed as, its lateral surface forms first and goes out the lateral surface of first lens body (20) Smooth surface (201).
- 2. LED lens according to claim 1, it is characterised in that the lateral surface is around the ellipsoidal structures formed The ratio between short major axis is more than or equal to 0.9 and is less than 1.
- 3. LED lens according to claim 1, it is characterised in that the first lens body (20) bottom opens up collecting Chamber (202), host cavity (202) side wall are incidence surface (203).
- 4. LED lens according to claim 3, it is characterised in that the first lens body (20) bottom also sets up phenanthrene Nie Er faces (204), the Fresnel surface (204) is around the host cavity (202).
- 5. LED lens according to claim 1, it is characterised in that the lateral surface of second lens body (30) is surround Be formed as toroidal structure, its lateral surface forms the second light-emitting surface (301).
- 6. LED lens according to claim 5, it is characterised in that recessed formation at the top of second lens body (30) Reflecting surface (302), the reflecting surface (302) is fully reflecting surface, for increasing hot spot.
- 7. according to claim 1-6 any one of them LED lens, it is characterised in that first lens body (20) is along One lens body is gradually reduced to the second lens body direction.
- 8. LED lens according to claim 1, it is characterised in that the LED lens are further included around the first lens body (20) fixed part (10) that side wall is set, the fixed part (10) are located at the lower section of the first light-emitting surface (201), and outer wheels profile encloses Squarely.
- 9. LED lens according to claim 8, it is characterised in that the first lens body (20) side wall is in short axle side To and/or long axis direction on surround beyond the fixed part (10) outer wheels profile it is square.
- 10. a kind of backlight module, including LED lamp bead (2), it is characterised in that further include claim 1-9 any one of them LED lens (1), the LED lens (1) are fixed on above the LED lamp bead (2) by suspension column (101) so that the LED light Pearl (2) is contained in the host cavity (202) and the LED lamp bead (2) and host cavity (202) center overlapping of axles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721440182.XU CN207364980U (en) | 2017-11-01 | 2017-11-01 | A kind of LED lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721440182.XU CN207364980U (en) | 2017-11-01 | 2017-11-01 | A kind of LED lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207364980U true CN207364980U (en) | 2018-05-15 |
Family
ID=62344977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721440182.XU Active CN207364980U (en) | 2017-11-01 | 2017-11-01 | A kind of LED lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207364980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307524A (en) * | 2019-06-24 | 2019-10-08 | 深圳明智超精密科技有限公司 | A kind of new type reflection and refractive optics TV lens |
-
2017
- 2017-11-01 CN CN201721440182.XU patent/CN207364980U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307524A (en) * | 2019-06-24 | 2019-10-08 | 深圳明智超精密科技有限公司 | A kind of new type reflection and refractive optics TV lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105283781A (en) | Lens having densely-distributed convex facets on its entrance and exit surfaces | |
| CN100549503C (en) | Special-shaped lens and high power LED road lamp shade | |
| AU2012365473B2 (en) | Improved optical systems and LED luminaires | |
| CN207364980U (en) | A kind of LED lens | |
| CN104373897A (en) | LED secondary lens and LED lamp | |
| CN103994396B (en) | A kind of bis- refraction-reflection lens of LED for downward back radiant | |
| US20220082229A1 (en) | Anti-Glare Lamp and Lighting Arrangement Method Using the Lamp | |
| CN108253381A (en) | A kind of lens and the light-emitting device including the lens | |
| CN208886676U (en) | Lens and light source module group | |
| CN208764703U (en) | Light distribution element and lamps and lanterns | |
| CN201110501Y (en) | Special-shaped lens and high power LED road lamp shade | |
| CN108800061B (en) | Grading lens of line lamp | |
| CN110007378B (en) | Asymmetric lens | |
| CN204648116U (en) | A kind of LED optical system | |
| CN204647929U (en) | A kind of LED light source with reflective light conducting cylinder | |
| CN208138922U (en) | A kind of lens and the light emitting device including the lens | |
| CN207865058U (en) | Array-type LED lighting device | |
| CN209399301U (en) | Lamps and lanterns and its lens | |
| CN208832261U (en) | Lawn lamp lamp cap and Lawn lamp | |
| CN204005733U (en) | Bis-refraction-reflection lens of LED for downward back radiant | |
| CN101639198A (en) | Light-emitting diode lens | |
| CN207750936U (en) | Led lens and led lamp | |
| CN208670914U (en) | LED lens and lighting device | |
| CN207065302U (en) | A kind of illuminating lamp concentration structure and its illuminating lamp | |
| CN206802874U (en) | Lighting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 518107 Derun Electronic Industrial Park, 269 Huitong Road, Fenghuang street, Guangming District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Deren Electronic Co., Ltd. Address before: 518107, Guangdong province Shenzhen Guangming New District Guangming Street, No. thirty-three Road, 9 Electronic Industrial Park run Patentee before: Shenzhen Deren Electronic Co., Ltd. |
|
| CP02 | Change in the address of a patent holder |