CN208670914U - LED lens and lighting device - Google Patents
LED lens and lighting device Download PDFInfo
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- CN208670914U CN208670914U CN201821178120.0U CN201821178120U CN208670914U CN 208670914 U CN208670914 U CN 208670914U CN 201821178120 U CN201821178120 U CN 201821178120U CN 208670914 U CN208670914 U CN 208670914U
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- light
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- refraction
- optical cavity
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Abstract
The utility model discloses a kind of LED lens and lighting device, the LED lens include bottom surface and top surface, and the bottom surface is equipped with into optical cavity, it is described enter optical cavity surface be refraction incidence surface；The top surface is refraction light-emitting surface, the refraction light-emitting surface is a cambered surface, the cambered surface is used to the incidence surface entering the light refraction in the lens body, and the plane where light and the bottom surface after making refraction is projected at a setting vertical angle from the light-emitting surface.The light that light source issues is introduced into the lens body by the LED lens by bottom surface described on lens body, and change the trend of light distribution and light by the light-emitting surface of the cambered surface, realize 360 degree of horizontal direction, light distribution in the range of vertical 0-90 degree, light source conversion ratio is improved simultaneously, reduces light efficiency loss.Light source conversion ratio is higher.
Description
Technical field
The utility model relates to optical lens technical field more particularly to a kind of LED lens and lighting device.
Background technique
In the prior art, large-power light-emitting diodes are a kind of point light sources of directional lighting, need to come using optical lens
The directed change curve of light distribution and the trend for changing light, to reach effective application purpose, but the design meeting of optical lens simultaneously
The light source conversion ratio of influence light emitting diode, the design of optical lens are best flat in effective application and realization in efficiency conversion
Weighing apparatus, and reduce the non-uniform problem of light.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of LED lens with a novel purpose.
On the one hand, to achieve the above object, the utility model embodiment provides a kind of LED lens, described to shine
Diode lens include:
Bottom surface, the bottom surface are equipped with into optical cavity, it is described enter optical cavity surface be refraction incidence surface；
Top surface, the top surface be refraction light-emitting surface, the refraction light-emitting surface be a cambered surface, the cambered surface for by it is described enter
Smooth surface enters the light refraction in the lens body, and the plane where light and the bottom surface after making refraction is at a setting
Vertical angle, and projected from the light-emitting surface.
One embodiment according to the present utility model, the vertical angle that sets is the range of 0-90 degree.
One embodiment according to the present utility model, it is described enter optical cavity be " people " glyph shape revolving body.
One embodiment according to the present utility model, it is described enter optical cavity revolving body bus be a slope from the bottom surface to
The camber line that top surface direction is gradually increased.
One embodiment according to the present utility model, the lens body use polycarbonate pc or the poly- first of optical grade
Base methyl acrylate is molded.
The LED lens that the example of the utility model provides, pass through bottom surface described on lens body " people " word shape
Enter the light that optical cavity issues light source to introduce in lens body, and light distribution and light are changed by the light-emitting surface of the cambered surface
Trend, realize 360 degree of horizontal direction, the light distribution in the range of vertical 0-90 degree, while improving light source conversion ratio, reduction
Light efficiency loss.Light source conversion ratio is higher.
On the other hand, the utility model also provides a kind of lighting device, comprising:
Above-mentioned LED lens；
Light source, the light source setting is in plane where the bottom surface, and light source center point enters optical cavity described in and returns
The position of the axis of swivel；
Heat-conducting substrate, the light source are mounted on the heat-conducting substrate；
Heat conducting base, the heat-conducting substrate are mounted in the heat conducting base.
One embodiment according to the present utility model, the light source be single light source, the single light source be point light source or
Person's circle area source.
The light source setting that the example of the utility model provides, passes through the bottom surface on above-mentioned LED lens " people " font
Shape enters the light that optical cavity issues light source and introduces in lens body, and changed by the light-emitting surface of the cambered surface light distribution and
The trend of light, realizes 360 degree of horizontal direction, the light distribution in the range of vertical 0-90 degree, while improving light source conversion ratio, subtracts
Few light efficiency loss.Light source conversion ratio is higher, keeps its fitting structure simpler.It is produced using the LED lens of the utility model
That product are made is easy, optical design is flexible, can any combination go out requirement of the user to light distribution, be suitably applied flying obstacle
Special lightings and the signal lamps such as lamp, airplane parking area aid-to-navigation light.
Detailed description of the invention
Fig. 1 is LED lens perspective structure schematic diagram provided by the embodiment of the utility model；
Fig. 2 is LED lens the schematic diagram of the section structure provided by the embodiment of the utility model；
Fig. 3 is LED lens provided by the embodiment of the utility model from bottom surface present invention looks up structural representation；
Fig. 4 is another the schematic diagram of the section structure of LED lens provided by the embodiment of the utility model；
Fig. 5 is the structural schematic diagram of lighting device provided by the embodiment of the utility model.
Appended drawing reference:
Lens body 10；
Top surface (light-emitting surface) 101；
Bottom surface 102；
Enter optical cavity 1021；
Incidence surface 10211；
Light source 20；
Heat-conducting substrate 30；
Heat conducting base 40.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described.Unless otherwise defined,
All technical and scientific terms used herein are generally understood with person skilled in the technical field of the present invention
Meaning it is identical.Terminology used in the description of the utility model herein is intended merely to description specific embodiment
Purpose, it is not intended that in limitation the utility model.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the utility model., which there is the phrase, in each position in the description to be each meant
Identical embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art are explicit
Ground and implicitly understand, embodiment described herein can be combined with other embodiments.
On the one hand, the utility model embodiment provides a kind of LED lens, refering to fig. 1 and Fig. 4, described to shine two
Pole pipe lens include lens body 10, and the lens body 10 includes: bottom surface 102 and top surface 101, and the bottom surface 102 is equipped with
Enter optical cavity 1021, it is described enter optical cavity 1021 surface be refraction incidence surface 10211；With continued reference to Fig. 4, it is described enter optical cavity 1021
The cavity intercepted by one by 102 place plane of bottom surface.Light source 20 setting it is described enter optical cavity 1021 in, by the light source 20
Central point is placed in 102 institute of bottom surface planar.The light La that light source 20 issues enters the lens from the incidence surface 10211
In main body 10.Due to the light source 20 setting it is described enter optical cavity 1021 in, light that the light source 20 is projected to surrounding whole
It is entered in the lens body 10 from the incidence surface 10211.
The top surface 101 is refraction light-emitting surface 101, and the refraction light-emitting surface 101 is a cambered surface, and the cambered surface is used for institute
The light refraction that incidence surface 10211 enters in the lens body 10 is stated, where the light and the bottom surface 102 after making refraction
Plane at one setting vertical angle, and from the light-emitting surface 101 project.The light La that the light source 20 issues from it is described enter light
The refraction of face 10211 enters in the lens body 10 at refracted light Lb, since the top surface 101 is refraction light-emitting surface 101,
And the refraction light-emitting surface 101 is a cambered surface, and radiation direction can be changed by the cambered surface, make to reflect from the cambered surface
Light reaches the light distribution angle of setting.
With continued reference to Fig. 4, the vertical angle that sets is the range of 0-90 degree.Since refraction incidence surface 10211 is inner arc
Line, incidence angle is big, and the light reflected and level angle are small, and light passes through refraction light-emitting surface 101 again and reflected, by changing
Become the curvature of refraction light-emitting surface 101, just the achievable light by after refraction 101 birefringence of light-emitting surface is in vertical angle
Degree (light project described in direction and bottom surface 102 plane between angle) within the scope of 0-90 degree it is controllable.Light is in vertical angle
It spends within the scope of 0-90 and is distributed, meet the specific demand to light angle in standard and market.
In one embodiment of the utility model, light emitting diode can be used as light source 20.It should be noted that institute
It states the orientation such as "top", "bottom", " side " and refers to relative position between each face, and be not same as each face in LED lens
Specific setting position when practical application.
With continued reference to Fig. 1, Fig. 2 and Fig. 4, it is described enter optical cavity 1021 be " people " glyph shape revolving body.By described
Revolving body so that the light La that issues of the light source 20 on same plane (X/Y plane) to enter angular a consistent, thus light out
The refracted light Lc in face 101 symmetrically projects central point as axle center using the light-emitting surface 101.
It is described enter optical cavity 1021 be " people " glyph shape so that the light source 20 project all directions on light La it is equal
It can be entered from the incidence surface 10211 into the lens body 10, and latter setting is reflected by the light-emitting surface 101
Angle projects, and reduces light efficiency loss.
With continued reference to Fig. 4, it is described enter 1021 revolving body of optical cavity bus be a slope from the bottom surface 102 to top surface 101
The camber line that direction is gradually increased.Since the slope of the bus is gradually increased from bottom surface 102 to 101 direction of top surface, so that in Z axis
Direction further away from the light source 20 light after reflecting, the opposite reduction of the angle of plane included angle where with bottom surface.To reduce
The thickness H of the lens body 10.With continued reference to Fig. 4, since the light La2 of the light source 20 sending is from closer to the top surface
101, folding can be just refracted at light Lb2 is reflected just further away from the bottom surface 102 after reflecting into the lens body 10
Light Lc2 is penetrated, light Lb2 is opposite with the angle of horizontal direction when the camber line slope is larger, after refraction reduces, so that described
Also the refraction to light Lb2 is able to satisfy when the thickness H of lens body 10 is smaller.
More specifically, refering to Fig. 4, it is described enter optical cavity 1021 be indent, and inside forms a refraction incidence surface
10211.The refraction incidence surface 10211 is connected to bottom surface 102, and refraction incidence surface 10211 is intrados.Due to reflecting incidence surface
10211 be interior camber line, and incidence angle is big, and the light reflected and level angle are small.It is described enter optical cavity 1021 bottom surface 102 formed
The refraction incidence surface 10211 of camber line in " people " font, light source 20 be set to it is described enter 1021 bottom surface 102 of optical cavity opening center
Position, 20 reflection light of light source reflects incidence surface 10211 by the incidence surface 10211, into the lens body 10
It is interior.The thickness of the lens body 10 can be determined by forming the opening of arc shape in " people " word in bottom surface 102, " people " word
Interior arc shape is more vertical, and 10 thickness of lens body is thinner；The curvature in each section of region of " camber line in herringbone " shape is control simultaneously
The uniformity of hot spot processed.
In the present embodiment, it is described enter 1021 bottom surface 102 of optical cavity opening center be overlapped with the center of bottom surface 102, it is luminous
Diode is set to center in the plane at 102 place of bottom surface.The light source 20 is the illuminating source 20 with certain volume.At this
In embodiment, light emitting diode can be considered point light source 20.
In one embodiment of the utility model, the lens body 10 uses polycarbonate pc (PC) or optics
Grade polymethylmethacrylacontinuous (PMMA) is molded.By with polycarbonate pc (PC) or optical grade polymethyl
Sour methyl esters (PMMA) reduces light efficiency loss so that the lens have better translucency.
On the other hand, the utility model also provides a kind of lighting device, comprising: above-mentioned LED lens, light source
20, heat-conducting substrate 30 and heat conducting base 40；The light source 20 is arranged in the 102 place plane of bottom surface, and in the light source 20
Heart point enters the position of the axis of 1021 revolving body of optical cavity described in；By by 20 central point of light source setting it is described enter light
The position of the axis of 1021 revolving body of chamber so that the light La that the light source 20 issues can be symmetrically from the incidence surface
10211 enter the lens, and by uniformly projecting after refraction from the light-emitting surface 101.
The light source 20 is mounted on the heat-conducting substrate 30；30 one side of heat-conducting substrate is used for the light source 20
It is installed, it is on the other hand thermally conductive for being carried out to the light source 20.
The heat-conducting substrate 30 is mounted in the heat conducting base 40.The heat-conducting substrate 30 distributes the light source 20
Light progress out is thermally conductive, the heat conducting base 40 can be conducted heat to, thus the heat come out to the light source 20
Amount radiates.
In one embodiment of the utility model, the light source 20 is single light source 20, and the single light source 20 is point light
Source 20 or round area source 20.The light source 20 is point light source 20 or round area source 20 preferably project it is relatively uniform
Symmetrical light.So that the light that the LED lens project is more symmetrically.
The light source 20 that the example of the utility model provides is arranged, and passes through bottom surface 102 described on above-mentioned LED lens "
People " word shape enters the light that optical cavity 1021 issues light source 20 and introduces in lens body 10, and passes through the light-emitting surface of the cambered surface
101 change the trend of light distribution and light, realize 360 degree of horizontal direction, light distribution in the range of vertical 0-90 degree, together
20 conversion ratio of Shi Tigao light source reduces light efficiency loss.20 conversion ratio of light source is higher, keeps its fitting structure simpler.Using this reality
Be made that easy, optical design is flexible of novel LED lens product, can any combination go out user to light distribution
It is required that being suitably applied special lightings and the signal lamps such as aviation obstruction beacon, airplane parking area aid-to-navigation light.
The above is only the embodiments of the present invention, are not intended to limit the scope of the patents of the utility model, although referring to before
Embodiment is stated the utility model is described in detail, it, still can be right for coming for those skilled in the art
Technical solution documented by aforementioned each specific embodiment is modified, or carries out equivalent replace to part of technical characteristic
It changes.All equivalent structures done using the utility model specification and accompanying drawing content are directly or indirectly used in other correlations
Technical field, similarly within the utility model patent protection scope.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case where above-described embodiment can be changed in the scope of the utility model, modify, replace and
Modification.
Claims (7)
1. a kind of LED lens, including lens body, which is characterized in that the lens body includes:
Bottom surface, the bottom surface are equipped with into optical cavity, it is described enter optical cavity surface be refraction incidence surface；
Top surface, the top surface are refraction light-emitting surface, and the refraction light-emitting surface is a cambered surface, and the cambered surface is used for the incidence surface
The light refraction in the lens body is entered, the light after making refraction is vertical at a setting with the plane where the bottom surface
Angle, and projected from the light-emitting surface.
2. LED lens according to claim 1, which is characterized in that the vertical angle that sets is 0-90 degree
Range.
3. LED lens according to claim 1, which is characterized in that it is described enter optical cavity be " people " glyph shape
Revolving body.
4. LED lens according to claim 3, which is characterized in that it is described enter optical cavity revolving body bus be one
The camber line that slope is gradually increased from the bottom surface to top surface direction.
5. LED lens according to claim 1, which is characterized in that the lens body uses the poly- carbon of optical grade
Acid esters optical-grade polymethylmethacrylacontinuous is molded.
6. a kind of lighting device, it is characterised in that: include:
LED lens described in claim 1 to 5 any one；
Light source, the light source setting is in plane where the bottom surface, and light source center point enters optical cavity revolving body described in
Axis position；
Heat-conducting substrate, the light source are mounted on the heat-conducting substrate；
Heat conducting base, the heat-conducting substrate are mounted in the heat conducting base.
7. lighting device according to claim 6, it is characterised in that: the light source is single light source, and the single light source is
Point light source or round area source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821178120.0U CN208670914U (en) | 2018-07-23 | 2018-07-23 | LED lens and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821178120.0U CN208670914U (en) | 2018-07-23 | 2018-07-23 | LED lens and lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208670914U true CN208670914U (en) | 2019-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821178120.0U Active CN208670914U (en) | 2018-07-23 | 2018-07-23 | LED lens and lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208670914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826231A (en) * | 2018-07-23 | 2018-11-16 | 深圳星标科技股份有限公司 | LED lens and lighting device |
-
2018
- 2018-07-23 CN CN201821178120.0U patent/CN208670914U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826231A (en) * | 2018-07-23 | 2018-11-16 | 深圳星标科技股份有限公司 | LED lens and lighting device |
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