CN204042750U - A kind of spreadlight lens for LED lamp and there is the LED lamp of this spreadlight lens - Google Patents
A kind of spreadlight lens for LED lamp and there is the LED lamp of this spreadlight lens Download PDFInfo
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- CN204042750U CN204042750U CN201420357969.XU CN201420357969U CN204042750U CN 204042750 U CN204042750 U CN 204042750U CN 201420357969 U CN201420357969 U CN 201420357969U CN 204042750 U CN204042750 U CN 204042750U
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Abstract
The utility model provides a kind of spreadlight lens for LED lamp, be located at the light-emitting window of light source, described light source has an optical axis, its optical input is a concave structure, for refracting incident light, described spreadlight lens has optical input and light output mouth corresponding thereto, and described optical input is a concave structure, for refracting light into described light output mouth; Wherein, described optical input is also provided with the plane of incidence and the reflecting surface of at least two pairs of angulations settings, described reflecting surface will the light reflection that reflect via the described plane of incidence to described light output mouth, and described optical input and described light output mouth are edges with the length direction of the cross-section normal of described spreadlight lens stretches two surfaces formed.The utility model additionally provides a kind of LED lamp, comprises a housing, aforesaid spreadlight lens and at least two light sources, and light source described in each is located at described optical input side and is intervally arranged along described length direction.
Description
Technical field
The utility model relates to a kind of spreadlight lens for LED lamp and has the LED lamp of this spreadlight lens.
Background technology
LED wall wash lamp has become indispensable a kind of illuminations in city illumination engineering, because its lamp body is large, the characteristic of excellent in heat dissipation effect, and high-power LED wall washing lamp irradiation distance reaches 1 meter to 10 meters, be highly suitable for the panorama type floodlighting of the inside and outside metope in the indoor and outdoor places such as government's lighting engineering, commercial location, subway, elevated overpass, external wall, building terrestrial reference, parlor, public place of entertainment.
In actual applications, the lens that are equipped with of LED wall wash lamp are different according to different demands.The lens module that LED wall wash lamp on market adopts is general thicker, and is limited to more single structure, and the angle of its emergent light is restricted, and therefore needs badly a kind of thinner and have the LED wall wash lamp lens of larger lighting angle.
Utility model content
In order to overcome above-mentioned technological deficiency, the purpose of this utility model is the LED lamp providing a kind of spreadlight lens for LED lamp and have this spreadlight lens.
To achieve these goals, the utility model first aspect provides a kind of spreadlight lens for LED lamp, be located at the light-emitting window of light source, described light source has an optical axis, described spreadlight lens has optical input and light output mouth corresponding thereto, described optical input is a concave structure, for refracting light into described light output mouth; Wherein, described optical input is also provided with the plane of incidence and the reflecting surface of at least two pairs of angulations settings, described reflecting surface will the light reflection that reflect via the described plane of incidence to described light output mouth, and described optical input and described light output mouth are edges with the length direction of the cross-section normal of described spreadlight lens stretches two surfaces formed.
In spreadlight lens disclosed in the utility model, wherein two adjacent described planes of incidence are arranged at described optical axis both sides in opposite directions, being connected with a convex surface between described two adjacent planes of incidence, refracting to described light output mouth for the central ray within the scope of the first incident light of the junction by exposing to described convex surface and described two adjacent planes of incidence respectively and the second incident light.
Preferably, the plane of incidence that the described angulation that described convex surface both sides are placed with equal number is arranged and reflecting surface.
Alternatively, described light output mouth comprises the first plane and is the second plane and the 3rd plane of different angle from described first plane, described second plane, the first plane and the 3rd plane surround the opening of a described optical input dorsad, and described first incident light and described second incident light symmetrical about described optical axis.Preferably, the angle of described first incident light and described second incident light and described optical axis is 30 ° ~ 50 °, described central ray is through described convex refractive to described first plane, and described first incident light and the extraneous peripheral light of described second incident light are transmitted to described second plane and described 3rd plane respectively through the reflection of the refraction of the described plane of incidence and described reflecting surface successively.More preferably, the angle of described first incident light and described second incident light and described optical axis is 40 °.
Alternatively, described light output mouth is a plane, and described optical input is asymmetric about described optical axis.Preferably, described first incident light and described second incident light asymmetric about described optical axis.Further preferably, the angle of described first incident light and described optical axis is 30 ° ~ 50 °, and the angle of described second incident light and described optical axis is 15 ° ~ 25 °.Again preferably, the angle of described first incident light and described optical axis is 40 °, and the angle of described second incident light and described optical axis is 25 °.
In spreadlight lens disclosed in the utility model, described optical input and/or described light output mouth are matte surfaces.
In spreadlight lens disclosed in the utility model, the described plane of incidence is plane.
In spreadlight lens disclosed in the utility model, described reflecting surface is fully reflecting surface.
In spreadlight lens disclosed in the utility model, described spreadlight lens is optical plastic lens.
In spreadlight lens disclosed in the utility model, described spreadlight lens is total internal reflection (TIR) lens.
The utility model second aspect provides a kind of LED lamp, comprises housing, aforesaid spreadlight lens and at least two light sources, and light source described in each is located at described optical input side and is intervally arranged along described length direction.Preferably, be also provided with a light-passing board between described inner walls and described light output mouth, described light-passing board has fluorescent material near the surface application of described light output mouth, and described at least two light sources are blue-ray LED.Preferably, described LED lamp is a kind of wall lamp.
By setting up the plane of incidence and the reflecting surface of the setting of multipair angulation in the optical input side of spreadlight lens, and there is the LED lamp of this type of spreadlight lens, the plane of incidence that can effectively use these angulations to arrange and the light path of reflecting surface to the incident light in partial angular extents change, to change its shooting angle, thus expand the range of exposures of whole light fixture, the polarizing angle of emergent light can also be increased simultaneously, eliminate optics macula lutea, the homogeneity of metope illumination can also be ensured, emergent ray is made to expose to the wider of wall, and improve the irradiant utilization rate of light source.
Accompanying drawing explanation
Fig. 1 is the schematic side view of a kind of embodiment of spreadlight lens of the present utility model;
Fig. 2 is the light path schematic diagram of a kind of embodiment of spreadlight lens of the present utility model;
Fig. 3 is the schematic side view of the another kind of embodiment of spreadlight lens of the present utility model;
Fig. 4 is the light path schematic diagram of the another kind of embodiment of spreadlight lens of the present utility model;
Fig. 5 is the schematic diagram of the LED lamp with spreadlight lens of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment also with reference to accompanying drawing, the utility model is further described.
As shown in Figure 1 and Figure 2, the utility model first aspect discloses a kind of spreadlight lens 1, and this spreadlight lens 1 is a kind of tension type lens, in strip.Can observe from cross section, this tension type spreadlight lens 1 stretches along its length with saw-tooth shaped cross section and makes, the shape of the similar Fresnel lens of its cross sectional shape, but the feature being different from that the Fresnel lens number of teeth is more, profile of tooth is regular.Disclosed in the utility model, the number of teeth of spreadlight lens 1 is any, profile of tooth is unrestricted, can make different profiles of tooth and the number of teeth according to actual needs, thus can be applied in LED lamp field in various different demand, as wall lamp.When this spreadlight lens 1 be positioned over along its length spaced one row LED light source 4 above time, a kind of input type LED lamp of strip can be formed, to adapt to the demand of wall lighting.As seen from the figure, the light-emitting window (light source 4 has an optical axis 41) of light source 4 is located at by this spreadlight lens 1, and has optical input 2 and light output mouth 3.Optical input 2 presents a kind of structure of upper spill, and for refractive illumination to the incident light on this optical input 2, this concave structure is generally the conveniently placement of LED light source 4 and the maximization of space utilization.
In specific embodiment a kind of disclosed in the utility model, optical input 2 is also provided with the plane of incidence 21 and the reflecting surface 22 of at least two pairs of angulations settings.From in shape, the plane of incidence 21 and reflecting surface 22 arrange indention in groups, work in coordination the light path changing incident light, and wherein, reflecting surface 22 is for reflecting the light reflected via the plane of incidence 21.In general lens, light beam is through the birefringence of the plane of incidence and plane of refraction; Or in the lens of some given shapes, light beam refracts to a mirrored sides of lens through the plane of incidence, after reflection, reflect lens via exit facet again.In spreadlight lens 1 disclosed in the utility model, add multiple reflecting surface 22 with reflection from lens side with same purpose, namely the plane of incidence 21 by refracting light incident on reflecting surface 22, then by reflecting surface 22 by light reflection on light output mouth 3, reflect this spreadlight lens 1 through light output mouth 3.In order to enable more light get to required position on wall, spreadlight lens 1 needs to become different shapes according to this Demand Design, and wherein a kind of mode is exactly the shooting angle by deflecting emergent light, thus expands the range of exposures of whole light fixture.In wall lamp field, the wall lamp that performance is good is got on metope, the illumination homogeneity of light is good, spreadlight lens 1 of the present utility model has set up the multipair plane of incidence 21 and reflecting surface 22, portion of incident light is divided into two parts, three parts or more part, thus deflects those successively through the light of superrefraction-reflection-refraction path propagation.The plane of incidence 21 is plane, and reflecting surface 22 is curved surface or is spliced by two sections of free form surfaces.Spreadlight lens 1 of the present utility model is a kind of tension type spreadlight lens 1, that is, optical input 2 and light output mouth 3 to stretch two optical surfaces formed along with the length direction of the cross-section normal of this spreadlight lens 1, wherein, this spreadlight lens 1 has length direction, width and short transverse, three's size the maximum is length direction, is short transverse in the same way with optical axis 41, and the side cross-sectional direction of the spreadlight lens 1 shown in figure is width.Tension type lens can expand the width of the whole hot spot exposed on wall, utilize the technique of stretching lens, the demand of the wall of any width can be adapted to, it both can be that spreadlight lens 1 module stretches and formed, also can several spreadlight lens 1 module stretched after be spliced to form.
In a preferred embodiment of the present utility model, in the plane of incidence 21 that multipair angulation is arranged and reflecting surface 22, have two adjacent planes of incidence 21 to arrange in opposite directions, and these two planes of incidence 21 lay respectively at the both sides of spreadlight lens 1 optical axis 41.A convex surface 23 is also connected with between these two the adjacent planes of incidence 21, for by refracting light incident to light output mouth 3, wherein, the light received by junction of the plane of incidence 21 that convex surface 23 is adjacent with these two is called the first incident light 51 and the second incident light 52, and the incident light in the first incident light 51 and the second incident light 52 scope is central ray.The convex surface 23 connecting these two the adjacent planes of incidence 21 is the parts of the optical input 2 stretched by free curve, for receiving from the light beam of light source 4 outgoing, near the light beam of core, it receives angular range of incident light and such as can be and to be positioned near light source 4 optical axis 41 with optical axis 41 angle at 40 °, and these light beams are directly refracted to light output mouth 3, can find out, the light beam of this part to be through after twice refraction outgoing again.If convex surface 23 is a kind of circular arc convex surfaces, then incident light can be become after superrefraction roughly parallel with the optical axis 41 of light source 4 collimated light beam of cluster, again by the refraction of light output mouth 3, outgoing from this spreadlight lens 1, simultaneously, by the face type of adjustment light output mouth 3, the shooting angle of this collimated light beam can also be changed.Those of skill in the art would appreciate that convex surface 23 also can make a plane.
Preferably, the plane of incidence 21 that the angulation being placed with equal number in the both sides of convex surface 23 is arranged and reflecting surface 22.That is, the zigzag plane of incidence 21 of same quantity and reflecting surface 22 are arranged on the both sides of convex surface 23, and such as convex surface 23 both sides respectively arrange the plane of incidence 21 and the reflecting surface 22 of the setting of two or three pairs of angulation.Such setting, can make the light distribution of emergent light spot more even, along with highly gradually light better effects if.
In spreadlight lens 1 disclosed in the utility model, light output mouth 3 is generally a concave surface, such as in an embodiment of the present utility model, light output mouth 3 is by being positioned at the first plane 31 of horizontal plane and being positioned at these the first plane 31 both sides and being that the second plane 32 of different angle and the 3rd plane 33 form from it.Second plane 32, first plane 31 and the 3rd plane 33 surround the opening of an optical input 2 dorsad, and the first incident light 51 and the second incident light 52 are about optical axis 41 symmetry.As shown in Figure 1, in the present embodiment, light output mouth 3 is made up of three parts, the opening set to the concave that first plane 31, second plane 32 and the 3rd plane 33 are formed, the effect of similar concave mirror can be played, light is being propagated into the process of optically thinner medium from optically denser medium, play the effect assembling emergent ray, be applied to wall lamp field, the deflection angle of the emergent light of the second plane 32 (or the 3rd plane 33) near metope can be increased, thus the incident angle making outgoing illumination be incident upon metope becomes large, the scope making it irradiate increases.
As shown in Figure 2, the first incident light 51 and the second incident light 52 are about optical axis 41 symmetry, and that is light source 4 is placed on the optical axis 41 of spreadlight lens 1.Preferably, the first incident light 51 and the second incident light 52 can be taken as an angle in 30 ° ~ 50 ° with the angle of optical axis 41, the central ray in this angular range refracts to the first plane 31 through convex surface 23 simultaneously.And all peripheral lights 53,54,55,56 between the first incident light 51 and the second incident light 52 outside scope, all successively through the refraction of the plane of incidence 21 and the reflection of reflecting surface 22, then the second plane 32 and the 3rd plane 33 is transmitted to respectively, reflection is exactly in fig. 2, the peripheral light 53,55 be positioned on the left of convex surface 23 eventually passes through the second plane 32 and reflects rear outgoing, and the peripheral light 54,56 be positioned on the right side of convex surface 23 eventually passes through the 3rd plane 33 and reflects rear outgoing.In a specific embodiment of the present utility model, first incident light 51 and the second incident light 52 get 40 ° with the angle of optical axis 41, angulation arrange the plane of incidence 21 and reflecting surface 22 for two to, the optical input 2 of whole spreadlight lens 1 has two to zigzag structure, a pair reflecting surface wherein near middle convex surface 23 is the first reflecting surface 221, submarginal a pair reflecting surface 22 is the second reflecting surface 222 (being the two sides of this spreadlight lens 1), crown near a pair zigzag structure of middle convex surface 23 compares the crown of submarginal a pair zigzag structure more close to lens itself.Wherein, a pair plane of incidence 21 near middle convex surface 23 is first planes of incidence 211, reception is the incident light of 40 ° ~ 55 ° with optical axis 41 angle of light source 4, and submarginal a pair plane of incidence 22 is second planes of incidence 212, receives the incident light being greater than 55 ° with optical axis 41 angle.Simultaneously, first reflecting surface 221, second reflecting surface 222 can be the reflecting surface of one section of free curve along the length direction stretching formation of spreadlight lens 1, first plane 31 of light output mouth 3 also has certain angle with horizontal plane, it can be 5 °, also can be 10 °, but angle should be less, be advisable for general 5 ° ~ 10 °.Emergent light by the design to the face type of light output mouth 3, can also be adjusted to almost parallel light beam by the utility model.
As shown in Figure 3, alternatively, the light output mouth 3 in spreadlight lens 1 of the present utility model is planes, and optical input 2 is asymmetric about optical axis 41 simultaneously.From in appearance, people generally like smooth agile surface, and from the angle of assembling, plane is beneficial to assembling more.Utilize the dissymmetrical structure of optical input 2, it (can be 5 ° that incident ray is deflected certain angle towards a direction (normally towards the direction of body of wall), also can be 10 °, specifically can design according to actual needs), make light outgoing in an angular range, such design increases the range of exposures exposing to hot spot on body of wall, and can eliminate macula lutea.In the present embodiment, preferably, the first incident light 51 and the second incident light 52 are asymmetric about optical axis 41, and that is, convex surface 23 is asymmetric about optical axis 41.As shown in Figure 4, in a specific embodiment of the present utility model, the dissymmetrical structure of whole optical input 2 is not irregular in fact, and the plane of incidence 21 of convex surface 23 both sides and the quantity of reflecting surface 22 are identical.In analysis chart 4, the slope of each reflecting surface 22 is known, each reflecting surface 22 being positioned at left side is generally greater than the reflecting surface 22 on the right side corresponding with it relative to the slope of optical axis 41, such setting can make light towards slope general that larger side deflection of reflecting surface 22.Therefore, in the above-described embodiments, the incident angle of the first incident light 51 can be an optional angle in 30 ° ~ 50 ° with optical axis 41 angle, and the incident angle of the second incident light 52 can be an optional angle in 15 ° ~ 25 ° with optical axis 41 angle, in the present embodiment, first incident light 51 is 40 ° with the angle of optical axis 41, and the second incident light 52 is 25 ° with the angle of optical axis 41.In addition, the setting of discrepant first incident light 51 of above-mentioned incident angle tool and the second incident light 52 is that convex surface 23 is more level and smooth with the connection of the plane of incidence 21 of both sides simultaneously in order to make processing injection moulding easier.
In the diagram, the zigzag structure showing optical input 2 side is three right embodiments, from the region away from optical axis 41, such as in the left side of convex surface 23, the light being greater than 40 ° with optical axis 41 angle, and on the right side of convex surface 23, the light being greater than 25 ° with optical axis 41 angle, the plane of incidence 21 occurred in pairs by zigzag and reflecting surface 22 change its light path, these light after the unirefringence of the primary event of the unirefringence of the plane of incidence 21, reflecting surface 22, light output mouth 3, injection spreadlight lens 1; And near optical axis 41, such as be less than 40 ° in the left side of convex surface 23 and optical axis 41 angle and the incident light that is less than within the scope of 25 ° on the right side of convex surface 23 and optical axis 41 angle refracts to light output mouth 3 via convex surface 23, namely through the light of twice refraction outgoing.The scope of the incident angle received near optical axis 41 there is the structure of the convex surface 23 of the incident light of larger difference, make the free form surface structure that asymmetric half cambered surface as shown in the figure stretches, on the one hand this there is incident angle difference incident light to adapt to, when being to make it connect the plane of incidence 21 of the left and right sides on the other hand, it is more level and smooth that curved surface connects.
Certainly those of skill in the art would appreciate that the scope that convex surface 23 receives incident light is not the scope be confined to described in above-described embodiment, but within the scope of aforementioned carried certain angle value.Simultaneously the plane of incidence 21 of zigzag structure and reflecting surface 22 also can be set to four to, five right, even can arrange more.
In a specific embodiment of the present utility model, optical input 2 and light output mouth 3 can carry out frosted process, can be matte surface simultaneously, also can not simultaneously be matte surface.The light of exiting parallel or the emergent light with angle difference can be carried out scattering process by matte surface, on the one hand can the light intensity of homogenising hot spot each several part, can eliminate macula lutea further on the other hand, make emergent light spot more attractive in appearance.
In a specific embodiment of the present utility model, the plane of incidence 21 is plane, plane for the process comparison rule of incident light, and design time more convenient.
In a specific embodiment of the present utility model, reflecting surface 22 is fully reflecting surface, utilize total reflection principle, because the medium of lens is relative to air, be generally optically denser medium, therefore reflecting surface 22 be set to the utilization ratio that fully reflecting surface can ensure whole light fixture light, when making the ray cast of those spreadlight lens 1 internal transmission to reflecting surface 22, the loss reduction of light, the utilization rate of light is the highest.
In a specific embodiment of the present utility model, spreadlight lens 1 is a kind of optical plastic lens, its material used can be polymethyl methacrylate (PMMA) material, namely select a kind of polymethyl methacrylate lens, also can be Merlon (PC) material, namely select a kind of polycarbonate lens.The general advantage of optical plastic lens is that optics utilization rate is high, material is cheap, is used in the selection that LED wall wash lamp field belongs to inexpensive.
In a specific embodiment of the present utility model, spreadlight lens 1 is a kind of total internal reflection lens (TIR).The benefit of total internal reflection lens is, except the plane of incidence 21 is with except light output mouth 3 in this spreadlight lens 1, other surface is all designed to follow total reflection law deflection light, and like this, the light utilization ratio of whole spreadlight lens 1 can reach theoretic maximization.
The utility model second aspect discloses a kind of LED lamp, as shown in Figure 5, comprises a housing 6, is provided with spreadlight lens 1 in it, and at least two light sources 4.Each light source 4 is located at optical input 2 side and length direction along whole spreadlight lens 1 is intervally arranged.This LED lamp is by processing spreadlight lens 1, the multipair zigzag plane of incidence 21 and reflecting surface 22 are set, use for reference the principle of Fresnel lens, but due to its number of teeth less, can be designed to ultra-thin lens in certain embodiments, therefore spreadlight lens 1 disclosed in the utility model is more more convenient than Fresnel lens processing.In embodiments more of the present utility model, aforementioned LED lamp is a kind of wall lamp, for wall lighting.
As shown in Figure 5 be the situation that the utility model spreadlight lens 1 is applied in practical application, housing 6 accommodates spreadlight lens 1 and light source 4, the light fixture of this strip can according to the different length of the profile design of building or width, and the scope of application is wide, and simple structure, easy to process.Wherein, housing 6 can be glass material, the optical glass materials such as such as quartz glass, silicate glass, soda-lime glass, fluoride glass, high temp glass, high pressure resistant glass, ultraviolet ray intercepting glass, implosion guard, also can be plastic light-transmission material, the optical plastic materials such as such as polymethyl methacrylate (PMMA), polystyrene (PS), Merlon (PC), styrene-acrylonitrile (AS), styrene-methylmethacrylate copolymer (MS), poly(4-methyl-1-pentene) (TPX), transparent polyamide.
Spreadlight lens 1 disclosed in the utility model, to be intervally arranged the granular sensation and macula lutea phenomenon that bring to eliminate light source 4 (present embodiment is LED), blue-ray LED and long-distance fluorescent powder technology can also be used to realize.As shown in Figure 5, a light-passing board 7 is also provided with between housing 6 inwall and light output mouth 3, by long-distance fluorescent powder technology by fluorescent material even application on the surface of light-passing board 7 near light output mouth 3, light source 4 all uses blue light LED light source simultaneously, like this be arranged so that the bright dipping of light fixture is more even, by blue-light excited fluorescent material, eliminate the granular sensation of light source 4, and eliminate optics macula lutea.In the utility model, light-passing board 7 can be the light-passing board of Merlon (PC) material, and relative to other high performance light transmissive materials, as optical plastics such as polymethyl methacrylates (PMMA), the weatherability of polycarbonate plate is better.
According to the spreadlight lens 1 of above-mentioned configuration and the LED lamp with this type of spreadlight lens 1, can effectively by changing the propagation path of wherein segment beam, change its shooting angle, thus expand the scope of emergent light spot, the vertical height making emergent ray expose to wall is more increased, the light intensity of emergent light spot is more even, improves the irradiant utilization rate of light source 4 further.
Should be noted that, embodiment of the present utility model has preferably implementation, and not any type of restriction is done to the utility model, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement change or be modified to equivalent effective embodiment, in every case the content of technical solutions of the utility model is not departed from, the any amendment done above embodiment according to technical spirit of the present utility model or equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (18)
1. for a spreadlight lens for LED lamp, be located at the light-emitting window of light source, described light source has an optical axis,
Described spreadlight lens has optical input and light output mouth corresponding thereto,
Described optical input is a concave structure, for refracting light into described light output mouth;
It is characterized in that,
Described optical input is also provided with the plane of incidence and the reflecting surface of at least two pairs of angulations settings, and the light reflection that described reflecting surface will reflect via the described plane of incidence is described light output mouth extremely,
And described optical input and described light output mouth to stretch two surfaces formed along with the length direction of the cross-section normal of described spreadlight lens.
2. spreadlight lens as claimed in claim 1, is characterized in that:
Wherein two adjacent described planes of incidence are arranged at described optical axis both sides in opposite directions,
Being connected with a convex surface between described two adjacent planes of incidence, refracting to described light output mouth for the central ray within the scope of the first incident light of the junction by exposing to described convex surface and described two adjacent planes of incidence respectively and the second incident light.
3. spreadlight lens as claimed in claim 2, is characterized in that: the plane of incidence that the described angulation that described convex surface both sides are placed with equal number is arranged and reflecting surface.
4. spreadlight lens as claimed in claim 3, it is characterized in that: described light output mouth comprises the first plane and is the second plane and the 3rd plane of different angle from described first plane, described second plane, the first plane and the 3rd plane surround the opening of a described optical input dorsad, and described first incident light and described second incident light symmetrical about described optical axis.
5. spreadlight lens as claimed in claim 4, is characterized in that:
The angle of described first incident light and described second incident light and described optical axis is 30 ° ~ 50 °, described central ray through described convex refractive to described first plane,
Described first incident light and the extraneous peripheral light of described second incident light are transmitted to described second plane and described 3rd plane respectively through the reflection of the refraction of the described plane of incidence and described reflecting surface successively.
6. spreadlight lens as claimed in claim 5, is characterized in that: the angle of described first incident light and described second incident light and described optical axis is 40 °.
7. spreadlight lens as claimed in claim 3, is characterized in that: described light output mouth is a plane, and described optical input is asymmetric about described optical axis.
8. spreadlight lens as claimed in claim 7, is characterized in that: described first incident light and described second incident light asymmetric about described optical axis.
9. spreadlight lens as claimed in claim 8, is characterized in that: the angle of described first incident light and described optical axis is 30 ° ~ 50 °, and the angle of described second incident light and described optical axis is 15 ° ~ 25 °.
10. spreadlight lens as claimed in claim 9, it is characterized in that: the angle of described first incident light and described optical axis is 40 °, the angle of described second incident light and described optical axis is 25 °.
11. spreadlight lenses as claimed in claim 1, is characterized in that: described optical input and/or described light output mouth are matte surfaces.
12. spreadlight lenses as claimed in claim 1, is characterized in that: the described plane of incidence is plane.
13. spreadlight lenses as claimed in claim 1, is characterized in that: described reflecting surface is fully reflecting surface.
14. spreadlight lenses as claimed in claim 1, is characterized in that: described spreadlight lens is optical plastic lens.
15. spreadlight lenses as claimed in claim 1, is characterized in that: described spreadlight lens is total internal reflection lens.
16. 1 kinds of LED lamp, comprise a housing, it is characterized in that, are provided with the spreadlight lens as described in claim 1-15 and at least two light sources in it, and light source described in each is located at described optical input side and is intervally arranged along described length direction.
17. LED lamp as claimed in claim 16, it is characterized in that: between described inner walls and described light output mouth, be also provided with a light-passing board, described light-passing board has fluorescent material near the surface application of described light output mouth, and described at least two light sources are blue-ray LED.
18. LED lamp as claimed in claim 16, is characterized in that: described LED lamp is a kind of wall lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357969.XU CN204042750U (en) | 2014-06-30 | 2014-06-30 | A kind of spreadlight lens for LED lamp and there is the LED lamp of this spreadlight lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357969.XU CN204042750U (en) | 2014-06-30 | 2014-06-30 | A kind of spreadlight lens for LED lamp and there is the LED lamp of this spreadlight lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204042750U true CN204042750U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420357969.XU Expired - Fee Related CN204042750U (en) | 2014-06-30 | 2014-06-30 | A kind of spreadlight lens for LED lamp and there is the LED lamp of this spreadlight lens |
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| CN (1) | CN204042750U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276522A (en) * | 2014-06-30 | 2016-01-27 | 欧普照明股份有限公司 | Spreadlight lens used for LED lamp and LED lamp provided with spreadlight lens |
| CN108826228A (en) * | 2018-06-27 | 2018-11-16 | 赛尔富电子有限公司 | A kind of illuminating lens and lighting unit and lighting system |
| TWI663363B (en) * | 2015-03-27 | 2019-06-21 | 小泉照明股份有限公司 | Light guide and light emitting device |
-
2014
- 2014-06-30 CN CN201420357969.XU patent/CN204042750U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276522A (en) * | 2014-06-30 | 2016-01-27 | 欧普照明股份有限公司 | Spreadlight lens used for LED lamp and LED lamp provided with spreadlight lens |
| CN105276522B (en) * | 2014-06-30 | 2019-04-30 | 欧普照明股份有限公司 | A kind of spreadlight lens for LED lamp and the LED lamp with the spreadlight lens |
| TWI663363B (en) * | 2015-03-27 | 2019-06-21 | 小泉照明股份有限公司 | Light guide and light emitting device |
| CN108826228A (en) * | 2018-06-27 | 2018-11-16 | 赛尔富电子有限公司 | A kind of illuminating lens and lighting unit and lighting system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 |