CN207455491U - A kind of LED collector lenses - Google Patents
A kind of LED collector lenses Download PDFInfo
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- CN207455491U CN207455491U CN201721501121.XU CN201721501121U CN207455491U CN 207455491 U CN207455491 U CN 207455491U CN 201721501121 U CN201721501121 U CN 201721501121U CN 207455491 U CN207455491 U CN 207455491U
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- collector lenses
- led collector
- led
- lens
- lenses
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Abstract
The utility model discloses a kind of LED collector lenses, it is in rotation body, it includes several sequentially connected lens units in a ring, from top to the bottom of the LED collector lenses, the outer diameter of each lens unit is sequentially increased, each lens unit stepped connection on the rotation direction of principal axis along the LED collector lenses；The lens unit includes the plane of incidence, the fully reflecting surface towards the rotation axis and the light-emitting surface towards the LED collector lenses top backwards to the rotation axis.LED collector lenses provided by the utility model can not only realize the aggregation to light, while change the design difficulty for also simplifying lens, reduce lens thickness.The utility model is easy to operate, simple in structure, and using effect is good, use easy to spread.
Description
Technical field
The utility model is related to optical lens technical field, more specifically to a kind of LED collector lenses.
Background technology
Existing large area light emitting source LED product, using bottom LED light source, in addition the mode of surface lens shines,
This illumination mode is but used, when needing light focusing on a bit, some shortcomings will be faced.It firstly, it is necessary to will be saturating
The thickness of mirror increases, and this adds increased the weight of lens, causes inconvenient to use, while also waste of materials, increases cost；Its
Secondary, the lens of different position needs focus on that a little required lens angle is different, lens angle it is various but also design
Difficulty increases；In addition, it is necessary to light source substrate is increased, this also leads to inconvenient to use, while the situation of waste of materials.
In view of at present this mode by light-ray condensing to one generate deficiency, it is necessary to design a kind of simple and practical optically focused
Device realizes the aggregation to light.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of LED collector lenses, realizes the aggregation to light,
Simplify design difficulty simultaneously, reduce lens thickness.
Technical solution is used by the utility model solves its technical problem：
A kind of LED collector lenses, in rotation body, including several sequentially connected lens units in a ring,
From top to the bottom of the LED collector lenses, the outer diameter of each lens unit is sequentially increased, and each lens unit is on edge
Stepped connection on the rotation direction of principal axis of the LED collector lenses；The lens unit includes entering backwards to the rotation axis
Penetrate face, the fully reflecting surface towards the rotation axis and the light-emitting surface towards the LED collector lenses top.
Preferably, from top to the bottom of the LED collector lenses, the fully reflecting surface of several lens units and institute
The angle stated between rotation axis gradually increases.
Preferably, the lens unit further includes the structural plane towards the LED collector lenses bottom, the plane of incidence,
The end to end cross section for making the lens unit is in class rectangle successively for structural plane, fully reflecting surface and light-emitting surface.
Preferably, the angle theta between the structural plane and the fully reflecting surface isWherein, n1To be described
The refractive index of lens unit, n2For the refractive index of air.
Preferably, the side profile of the LED collector lenses is in towards the concave concave arc shape of the rotation axis.
Preferably, between the two adjacent lens units, the structural plane and another lens unit of a lens unit
The light-emitting surface connect.
Preferably, the outer diameter of the LED collector lenses is 50-100 centimetres, and the focal length of the LED collector lenses is 80-
150 centimetres.
Preferably, the outer diameter of the LED collector lenses is 62.8 centimetres, and the focal length of the LED collector lenses is 100 lis
Rice.
Preferably, the LED collector lenses include at least two lens modules in fan annular, and the lens module is in ring
Shape is spliced in array.
Preferably, the LED collector lenses are an integral molding structure.
The beneficial effects of the utility model are：This LED collector lenses utilize total reflection lens principle, can be by annular arrangement
LED light source carries out optically focused；By setting gradually several lens units in a ring, make lens that can not only realize and light is gathered
Collection, and the design difficulty of lens is simplified, reduce lens thickness, utilization material as thin as possible, by the LED of annular arrangement
The light that light source is sent gathers same focus as far as possible after each fully reflecting surface；Using multiple lens unit splicing constructions,
Achieve the purpose that the LED light source of annular arrangement reaching optically focused.The utility model is easy to operate, simple in structure, and using effect is good,
Use easy to spread.
Description of the drawings
Fig. 1 is the structure diagram of the LED collector lenses of the utility model.
Fig. 2 is the schematic diagram of the minimum total reflection unit of the LED collector lenses of the utility model.
Fig. 3 is the LED collector lens operation principle schematic diagrams of the utility model.
Wherein：The 1- planes of incidence, 2- structural planes, 3- fully reflecting surfaces, 4- light-emitting surfaces, 5- lens units.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to
The scope of the use of the new type protection.
Attached drawing 1-3 is referred to, a kind of LED collector lenses of the present embodiment are in rotation body, including several successively
The lens unit 5 in a ring of connection, from top to the bottom of the LED collector lenses, the outer diameter of each lens unit 5 according to
Secondary increase, each lens unit 5 stepped connection on the rotation direction of principal axis along the LED collector lenses；The lens
Unit 5 includes the plane of incidence 1, towards the fully reflecting surface 3 of the rotation axis and saturating towards the LED optically focused backwards to the rotation axis
The light-emitting surface 4 at vertex end.
LED collector lenses based on above-mentioned technical characteristic, can be by the LED light of annular arrangement using total reflection lens principle
Source carries out optically focused；By setting gradually several lens units in a ring, make lens that can not only realize the aggregation to light, and
And the design difficulty of lens is simplified, reduce lens thickness, utilization material as thin as possible, by the LED light source of annular arrangement
The light sent gathers same focus as far as possible after each fully reflecting surface；Using multiple lens unit splicing constructions, reach
The LED light source of annular arrangement is achieved the purpose that into optically focused.The utility model is easy to operate, simple in structure, and using effect is good, is easy to
It promotes the use of.
In the present embodiment, from top to the bottom of the LED collector lenses, several lens units 5 are all-trans
The angle penetrated between face 3 and the rotation axis gradually increases.This design can ensure described in the incident light process of different angle
LED collector lenses meet total reflection condition when being irradiated to the fully reflecting surface 3, are penetrated from the light-emitting surface 4 of the LED collector lenses
Go out, realize the purpose of light-ray condensing.
In the present embodiment, the lens unit 5 further includes the structural plane 2 towards the LED collector lenses bottom, described
The plane of incidence 1, structural plane 2, fully reflecting surface 3 and light-emitting surface 4 successively the end to end cross section for making the lens unit in class rectangle,
So as to ensure the globality of lens unit.Angle theta between the structural plane 2 and the fully reflecting surface 3 is
Wherein, n1For the refractive index of the lens unit 5, n2For the refractive index of air, it ensure that incident light can be from the fully reflecting surface
3 total reflections are projected.
Wherein, entered by the light that LED light source is sent from the plane of incidence 1, according to total reflection condition, entered from optically denser medium
When incidence angle increases to certain critical angle during optically thinner medium, total reflection can be generated, and the structural plane 2 of the LED collector lenses
Angle theta between the fully reflecting surface 3 meets the total reflection condition, so when incident light reaches the fully reflecting surface 3, light
Line can be totally reflected, and be projected by the light-emitting surface 4.Therefore, the light sent by LED light source is formed gathering from the LED
The plane of incidence 1 of optical lens enters, and by the reflection of the fully reflecting surface 3, the light path that is projected from the light-emitting surface 4 realizes pair
The aggregation of light.
In the present embodiment, between the two adjacent lens units 5, the structural plane 2 of a lens unit 5 with it is another
The light-emitting surface 4 of mirror unit 5 connects, and ensure that the globality of lens.Meanwhile the side profile of the LED collector lenses is in
Towards the concave concave arc shape of the rotation axis.
In the present embodiment, the outer diameter of the LED collector lenses is 50-100 centimetres, it is preferred that the LED collector lenses
Outer diameter is 62.8 centimetres.The focal length of the LED collector lenses is 80-150 centimetres, it is preferred that the focal length of the LED collector lenses
For 100 centimetres.
In a kind of embodiment of the utility model, the LED collector lenses include at least two lens in fan annular
Module is spliced to the lens module circular array.This design can be overweight mobile inconvenient to avoid lens.In this practicality
In new another embodiment, the LED collector lenses are an integral molding structure, to ensure the LED collector lenses splicing
Precision.
Wherein, in specific implementation process, the size of the module can be designed according to actual needs, meets different application
Needs.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, several improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (10)
1. a kind of LED collector lenses, it is characterised in that：It is in rotation body, sequentially connected in a ring including several
Lens unit, from top to the bottom of the LED collector lenses, the outer diameter of each lens unit is sequentially increased, described each
Mirror unit stepped connection on the rotation direction of principal axis along the LED collector lenses；The lens unit is included backwards to described
The plane of incidence of rotation axis, the fully reflecting surface towards the rotation axis and the light-emitting surface towards the LED collector lenses top.
2. LED collector lenses as described in claim 1, it is characterised in that：From top to the bottom of the LED collector lenses,
Angle between the fully reflecting surface of several lens units and the rotation axis gradually increases.
3. LED collector lenses as claimed in claim 2, it is characterised in that：The lens unit is further included to be gathered towards the LED
The structural plane of optical lens bottom, the plane of incidence, structural plane, fully reflecting surface and light-emitting surface are end to end successively to make the lens list
The cross section of member is in class rectangle.
4. LED collector lenses as claimed in claim 3, it is characterised in that：Between the structural plane and the fully reflecting surface
Angle theta isWherein, n1For the refractive index of the lens unit, n2For the refractive index of air.
5. LED collector lenses as claimed in claim 4, it is characterised in that：The side profile of the LED collector lenses is in towards institute
State the concave concave arc shape of rotation axis.
6. LED collector lenses as claimed in claim 5, it is characterised in that：Between the two adjacent lens units, a lens
The structural plane of unit connects with the light-emitting surface of another lens unit.
7. LED collector lenses as claimed in claim 6, it is characterised in that：The outer diameter of the LED collector lenses is 50-100 lis
Rice, the focal length of the LED collector lenses is 80-150 centimetres.
8. LED collector lenses as claimed in claim 7, it is characterised in that：The outer diameter of the LED collector lenses is 62.8 lis
Rice, the focal length of the LED collector lenses is 100 centimetres.
9. the LED collector lenses as any one of claim 1-8, it is characterised in that：The LED collector lenses are included extremely
Few two lens modules in fan annular, splice to the lens module circular array.
10. the LED collector lenses as any one of claim 1-8, it is characterised in that：The LED collector lenses are one
Forming structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501121.XU CN207455491U (en) | 2017-11-10 | 2017-11-10 | A kind of LED collector lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501121.XU CN207455491U (en) | 2017-11-10 | 2017-11-10 | A kind of LED collector lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207455491U true CN207455491U (en) | 2018-06-05 |
Family
ID=62278942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721501121.XU Active CN207455491U (en) | 2017-11-10 | 2017-11-10 | A kind of LED collector lenses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207455491U (en) |
-
2017
- 2017-11-10 CN CN201721501121.XU patent/CN207455491U/en active Active
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