CN202884797U - Lens, light-emitting diode (LED) module and illumination system utilizing LED module - Google Patents
Lens, light-emitting diode (LED) module and illumination system utilizing LED module Download PDFInfo
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- CN202884797U CN202884797U CN2012204835529U CN201220483552U CN202884797U CN 202884797 U CN202884797 U CN 202884797U CN 2012204835529 U CN2012204835529 U CN 2012204835529U CN 201220483552 U CN201220483552 U CN 201220483552U CN 202884797 U CN202884797 U CN 202884797U
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Abstract
Provided are a lens, a light-emitting diode (LED) module and an illumination system utilizing the LED module. The illumination system comprises the LED module and illuminated faces. The LED module comprises the lens and an LED. The lens comprises an optical axis, a light source arranging position, a first light-emitting face and a second light-emitting face arranged on the same side with the first light-emitting face. Due to the fact that section outlines perpendicular to the intersecting line of the first light-emitting face and the second light-emitting face comprise at least one tangent line forming an acute angle with the optical axis in the light-emitting direction along the optical axis of the lens, and the outlines of the first light-emitting face and the second light-emitting face on the section are asymmetrical with the optical axis serving as a central axis. Comparing the first light-emitting face with the second light-emitting face, emitted light of the first light-emitting face is not dispersed, or light-emitting strength or light-emitting amount of the first light-emitting face is large, more attenuation of the emitted light of the first-emitting face is made up, and furthermore, the illuminated face at the position near to the LED module basically has the same luminance with the illuminated face at the position far from the LED module.
Description
Technical field
The present invention relates to a kind of illuminator, particularly a kind of illuminator that lens, the LED module of Uniform Illumination can be provided and use this LED module.
Background technology
In general daily life, all can see various lighting apparatus everywhere, for example, fluorescent lamp, street lamp, desk lamp, artistic lamp etc.In above-mentioned lighting apparatus, major part is as illuminating source with osram lamp traditionally.In recent years, because science and technology is maked rapid progress, utilized light emitting diode (LED) as luminous source.Very the person except lighting apparatus, for general traffic sign, billboard, car light etc., also changes into and uses light emitting diode as illuminating source.As previously mentioned, use light emitting diode as illuminating source, its benefit is power saving, and brightness is larger, so gradually generalization on using.
As shown in Figure 1, for using LED as the light path schematic diagram of the illuminator of light source in a kind of prior art.This illuminator comprises that 1, one of a plane of illumination is arranged on the led light source 2 of these plane of illumination 1 one sides.This led light source 2 comprises an exiting surface 3, and this exiting surface 3 penetrates countless lamp wirings 4 and is radiated on the plane of illumination 1.What can expect is, no matter described led light source 2 is placed on which position of plane of illumination 1, then the be bound to far-end of directive plane of illumination 1 of the be bound to near-end of directive plane of illumination 1 of the part in the light 4 that exiting surface 3 penetrates, another part.Just because of above inevitable light irradiating structure, the light of directive plane of illumination 1 near-end will be less with respect to the light attenuation of directive plane of illumination 1 far-end, and no matter be the light of directive far-end or the light of directive near-end, its original intensity value equates, therefore can cause because plane of illumination 1 is different with respect to the distance of led light source 2, its lightness is also different, and namely plane of illumination 1 illumination everywhere is different.
This inhomogeneous lighting effect is for some occasions, such as show room, exhibition, again or the illumination occasion in some markets, because lighting effect is inhomogeneous, be the even article that are demonstrated of will reducing of uneven illumination to visitor or buyer's visual effect, thereby reduce displaying articles to the visual product texture of people.
Summary of the invention
In view of this, be necessary to provide a kind of illuminator that the uniform lens of lighting effect, LED module can be provided and use this LED module, to overcome above-mentioned deficiency.
A kind of lens, it comprises an optical axis, a light source placement that is used for arranging light source, first exiting surface that is arranged on opposite, described light source placement, and one be arranged on and this first exiting surface homonymy and the second exiting surface of intersecting with this first exiting surface.Has an intersection with described optical axis intersection between described first, second exiting surface.Described first, second exiting surface along comprise respectively on the outline line in optical axis and the cross section vertical with the intersection of this first, second exiting surface at least one with described optical axis acutangulate tangent line on light direction, and the outline line of this first, second exiting surface on this cross section axle centered by optical axis is asymmetric.
A kind of LED module, it comprises lens, and a LED who uses with this lens collocation.Described lens, it comprises an optical axis, a light source placement that is used for arranging light source, first exiting surface that is arranged on opposite, described light source placement, and one be arranged on and this first exiting surface homonymy and the second exiting surface of intersecting with this first exiting surface.Has an intersection with described optical axis intersection between described first, second exiting surface.Described first, second exiting surface along comprise respectively on the outline line in optical axis and the cross section vertical with the intersection of this first, second exiting surface at least one with described optical axis acutangulate tangent line on light direction, and the outline line of this first, second exiting surface on this cross section axle centered by optical axis is asymmetric.
A kind of illuminator, it comprises at least one LED module, and at least one plane of illumination corresponding with corresponding LED module.This LED module comprises lens, and a LED who uses with this lens collocation.Described lens, it comprises an optical axis, a light source placement that is used for arranging light source, first exiting surface that is arranged on opposite, described light source placement, and one be arranged on and this first exiting surface homonymy and the second exiting surface of intersecting with this first exiting surface.Has an intersection with described optical axis intersection between described first, second exiting surface.Described first, second exiting surface along comprise respectively on the outline line in optical axis and the cross section vertical with the intersection of this first, second exiting surface at least one with described optical axis acutangulate tangent line on light direction, and the outline line of this first, second exiting surface on this cross section axle centered by optical axis is asymmetric.
Compared with prior art, directive can have larger decay from the ejaculation light of the second exiting surface of LED module plane of illumination more nearby than directive from LED module plane of illumination at a distance although the first exiting surface penetrates light, but because the first exiting surface is compared with the second exiting surface, its emergent light is not dispersed or it goes out luminous intensity or amount of light is larger, thereby the ejaculation light that has remedied this first exiting surface is owing to arriving the more decay that causes from the LED module at a distance, so can make from LED module plane of illumination more nearby with from LED module plane of illumination at a distance essentially identical illumination is arranged.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described, wherein:
Fig. 1 is the light channel structure schematic diagram of the illuminator of prior art.
The light path schematic diagram of a kind of illuminator that Fig. 2 provides for first embodiment of the invention.
Fig. 3 is the perspective view of the lens in the illuminator of Fig. 2.
Fig. 4 A-Fig. 4 B is that the diverse location of the LED lens that are arranged on Fig. 3 and lens are along the structural representation of A-A line.
Fig. 5 A-Fig. 5 D is four structural representations with lens of different structure of emergent light surfaces.
Fig. 6 is the top view of the lens of Fig. 3.
Fig. 7 A-Fig. 7 B be respectively Fig. 4 A at the B place and Fig. 6 at the partial enlarged drawing at C place
Fig. 8 is the light path schematic diagram with illuminator of Fig. 5 A lens.
Fig. 9 is the light path schematic diagram with illuminator of Fig. 5 B lens.
The structural representation of a kind of lens that Figure 10 provides for second embodiment of the invention.
Figure 11 A-Figure 11 C is the 3rd exiting surface of the lens of Figure 10 has different curvature with respect to the optical axis of lens structural representation
The specific embodiment
Below based on accompanying drawing specific embodiments of the invention are further elaborated.Should be appreciated that specific embodiment described herein only as embodiment, the protection domain that is not intended to limit the present invention.
See also Fig. 2, the structural representation of a kind of illuminator that provides for first embodiment of the invention.This illuminator 100 comprises at least one LED module 10, and at least one plane of illumination 20 corresponding with each LED module 10 difference.In actual applications, described LED module 10 may comprise a plurality of, and this can determine the big or small of plane of illumination 20 or what according to.In the present embodiment, only in order to describe the present invention in detail, so a LED module 10 and a plane of illumination 20 corresponding with this LED module 10 only are shown.What can expect is that this illuminator 100 also comprises other components and parts, such as cabinet, for the lamp bracket that LED module 10 is set, the assemblies such as lampshade, and be used for power supply to 10 power supplies of LED module etc., because suchlike assembly is not emphasis of the present invention, do not repeat them here.
Described LED module 10 comprises lens 11, and a LED12 who uses with these lens 11 collocation.
See also Fig. 3, described lens 11 comprise an optical axis 111, a light source placement 112 that is used for arranging light source, first exiting surface 113 that is arranged on 112 opposites, described light source placement, one is arranged on and these the first exiting surface 113 homonymies and the second exiting surface 114 of intersecting with this first exiting surface 113, one is arranged on described first, the second exiting surface 113,114 and light source placement 112 between fully reflecting surface 115, a periphery and first that is arranged on this fully reflecting surface 115, the second exiting surface 113, have a transition face 116 between 114 the periphery, and a counterbore 117 that is arranged on light source placement 112 sides.
Be understandable that consistent with all lens, each lens comprises an optical axis.In the present embodiment, described lens 11 comprise an optical axis 111.This optical axis is used for arranging light source, i.e. LED12, and optical axis also is the guiding of light path design simultaneously.
Described light source placement 112 is used for light source is set, such as LED12, or other light source, such as fluorescent lamp.In the present embodiment, described light source is LED12.What can expect is, when the dimension scale of the dimension scale of other light sources such as fluorescent lamp and lens 11 and LED12 and lens 11 is suitable, then also can use fluorescent lamp to be used as light source, can reach the technique effect that the present invention will reach equally.In this light source placement 11, shown in Fig. 4 A, Fig. 4 B, described LED12 can be arranged on the inside of this counterbore 117, also can be arranged on the outside of this counterbore 117, and namely the inside of counterbore 117 or outside all can be used as the light source placement 112 of light source.When LED12 is arranged in the counterbore 117, in order to make the maximized while of utilizing of lens 11, be convenient to assemble this lens 11 and LED12, the opposition side of the exiting surface of this LED12 flushes with the openend of described counterbore 117.When LED12 is arranged on the outside of counterbore 117, all can enter in the lens 11 in order to make all light of LED12, preferably, the exiting surface of this LED12 flushes with the openend of described counterbore 117.In the present embodiment, the exiting surface of described LED12 flushes with the openend of described counterbore 117.
Described the first exiting surface 113 is relative with light source placement 112, is used for going out from its refraction from a part of light source of LED12, and shines plane of illumination 20 from the side of LED module 10 away from.Beam width (beam width) for the outgoing beam of controlling the first exiting surface 113, to form the hot spot of controlled size at plane of illumination 20, be provided with a plurality of interconnective hexagon microballoon face lens 1131 at this first exiting surface 113, as shown in Figure 6.See also Fig. 7 A, Fig. 7 B, Fig. 7 A is that Fig. 4 A is at the partial enlarged drawing at B place.Fig. 7 B is that Fig. 6 is at the top view of the hexagon microballoon face lens 116 at C place.Fig. 7 A shows the spherical radius of each spherical lens, i.e. curvature R, and the sagitta h of this sphere arc, Fig. 7 B show each hexagonal opposite side distance L.Namely can change the beam width of each hexagon microballoon face lens 116 by changing R, h and L, namely curvature, sagitta and the opposite side distance of these hexagon microballoon face lens are from arranging according to predetermined light beam width.For example, work as R=3.0mm, h=0.1mm, during L=1.33mm, the beam width of resulting hexagon microballoon face lens 116 will be that one 12 degree is to 17 beam widths of spending.Work as R=2.0mm, h=0.2mm, during L=1.51mm, the beam width of resulting hexagon microballoon face lens 116 will be that one 20 degree is to 24 beam widths of spending.Work as R=3.0mm, h=0.5mm, during L=3.0mm, the beam width of resulting hexagon microballoon face lens 116 will be that one 25 degree is to 30 beam widths of spending.This first exiting surface is the plane or has at least one concave surface that its structure and principle are as described below.
Described the second exiting surface 114 and these the first exiting surface 113 homonymy settings, and with this first exiting surface 113 form one with the crossing intersection 1141 of described optical axis 111.Of particular note, because the accuracy of manufacture, this intersection 1141 can not be embodied in the lens 11 in practice, but the cambered surface with certain curvature replaces.This second exiting surface 114 is used for another part light source of LED12 is gone out from its refraction, and shines the nearer side of plane of illumination 20.Described the second exiting surface 114 is identical with the first exiting surface 113, also is provided with a plurality of interconnective hexagon microballoon face lens on its exiting surface.These hexagon microballoon face lens are the same with the microballoon face lens 118 of the first exiting surface 113, do not repeat them here.What certainly can understand is, wider such as plane of illumination in some cases, and these hexagon microballoon face lens also can be set on this first and second exiting surface 113,114.
Shown in Fig. 4 A, Fig. 4 B, for described first, second exiting surface 113,114 along the optical axis 111 of lens and the cross section structure schematic diagram vertical with this first, second exiting surface 113,114 intersection 1141.Comprise respectively on the outline line in described first, second exiting surface 113,114 cross section at least one with described optical axis 111 acutangulate tangent line on light direction.According to this requirement, at least can draw such as Fig. 4 and three kinds of structures shown in Figure 5, in Fig. 4 A and Fig. 4 B, the first exiting surface 113 is a plane, then only comprise one and described optical axis 111 acutangulate tangent line on light direction, and the second exiting surface 114 is a cambered surface, this cambered surface comprise many with described optical axis 111 at acutangulate tangent line on the light direction and many and described optical axis 111 obtuse-angulate tangent line on light direction.In like manner, be understandable that, in Fig. 5 A-Fig. 5 D, each first, second exiting surface 113,114 comprise respectively at least one with described optical axis 111 acutangulate tangent line on light direction, therefore can produce a variety of distortion, in Fig. 5 C, first, second exiting surface 113,114 is all concave surface.In the lens of above-mentioned each shape, the outline line of described first, second exiting surface 113,114 on described cross section is asymmetric take optical axis 111 as symmetry axis so that the first exiting surface 113 and the second exiting surface 114 go out luminous intensity or amount of light is different.In the present embodiment, the first exiting surface 113 is a plane, and the second exiting surface 114 is a cambered surface.
The light that described fully reflecting surface 115 is used for receiving all reflects away, and it is arranged between smooth placement 111 and first, second exiting surface 113,114, so that described lens 11 form a frustum structure.
Described transition face 116 is arranged between the periphery of this fully reflecting surface 115 and first, second exiting surface 113,114 the periphery, this transition face 116 neither receives the light from light source led 12 in the ideal situation, also can not reflect or reflect any light, its effect only is to form described first, second exiting surface 113,114.
Please consult Fig. 4, the axial centre of described counterbore 117 is passed the optical axis 111 of described lens 11 again.To disperse or collimation from the light of LED12 by this counterbore 117, thereby enter first, second exiting surfaces 113,114 of lens 11, and on the fully reflecting surface 115.
Described LED (Light Emitting Diode) the 12nd, a kind of can be the solid-state semiconductor devices of visible light with electric energy conversion, it can directly be converted into luminous energy to electricity.The center of this LED12 is arranged on the optical axis 111 of lens 11.
Described plane of illumination 20 is the position of described LED module 10 irradiations, and it can be the plane, also can be curved surface.In the present embodiment, only in order to demonstrate the invention, this plane of illumination 20 is the plane.This plane of illumination 20 can be the article such as picture that will illuminate in the museum, also can be at the supermarket in the product of peddling in the refrigerator-freezer.As shown in Figure 2, when described LED module 10 is installed, the emergent light directive that light should be dispersed or go out luminous intensity, that exiting surface that amount of light is large is on the plane of illumination 20 of LED module 10 away from, as when the first exiting surface 113 is the plane, can make light directive plane of illumination 20 that this first exiting surface 113 a penetrates side far away with respect to LED module 10, and make light directive plane of illumination 20 that the second exiting surface 114 a penetrates side nearer with respect to LED module 10.
Now illustrate the operation principle of this illuminator, for the lens among Fig. 4 A, when work, the index path of its illuminator 100 as shown in Figure 2.In these lens 11, described the first exiting surface 113 is a plane, and its emergent light directive is from the side of LED module 10 away from, and the second exiting surface 114 is a cambered surface, and its emergent light directive is from the side of LED module 10 close to.Simultaneously, because the outline line of described the second exiting surface 114 comprise many with described optical axis 111 at acutangulate tangent line on the light direction and many and described optical axis 111 obtuse-angulate tangent line on light direction, therefore, the emergent light of outline line and optical axis 111 acutangulate part cambered surfaces is the plane of illumination 20 of directive from the nearest side of LED module 10, and the emergent light of outline line and optical axis 111 obtuse-angulate part cambered surfaces with respect to the emergent light of outline line and optical axis 111 acutangulate part cambered surfaces with directive from the side of LED module 10 away from.Therefore, directive can have larger decay from the ejaculation light of LED module 10 the second exiting surface 114 more nearby than directive at a distance from LED module 10 although the first exiting surface 113 penetrates light, but because the emergent light of the second exiting surface 114 is disperseed by its cambered surface, thereby so that the first exiting surface 112 has received more light with respect to the second exiting surface 114, and then the ejaculation light that has remedied the first exiting surface 112 is owing to arriving the more decay that causes from LED module 10 at a distance.So this illuminator 100 can make from LED module 10 has essentially identical illumination at a distance more nearby with from LED module 10.Here, the meaning that needs explanation " basic identical ", although this is basic identical refer to the illumination apparatus measures from LED module 10 far or the both sides of the plane of illumination 20, its brightness value may be not exclusively the same, but visually observe for people and then to be difficult to discover this difference, thereby reach the vision for people, the lighting effect of plane of illumination 20 is that illumination is consistent.
For the lens 11 among Fig. 5 A figure, when work, the index path of its illuminator 100 as shown in Figure 8.In these lens 11, described first, second exiting surface 113,114 is all the plane.Because this first, second exiting surface 113,114 intersection 1141 arrange with the optical axis interval so that the first exiting surface 113 and the second exiting surface 114 go out luminous intensity or amount of light is different.In the present embodiment because intersection 114 deflection the second exiting surface 1141 so that the first exiting surface 113 go out luminous intensity or amount of light greater than the second exiting surface 114.Therefore when the emergent light directive of this first exiting surface 113 from the side of LED module 10 away from, and the emergent light directive of the second exiting surface 114 is during from the side of LED module 10 close to, an although emergent light directive distance side far away of the first exiting surface 113, optical attenuation is larger, but it goes out luminous intensity or amount of light is larger, thereby can remedy this optical attenuation or loss, and then reach and the essentially identical illumination of the second exiting surface 114 directives from the side of LED module 10 close to.
For the lens 11 among Fig. 5 B figure, when work, the index path of its illuminator 100 as shown in Figure 9.In these lens 11, described first, second exiting surface 113,114 is all cambered surface, its operation principle is that this cambered surface is not only disperseed emergent light, and since intersection 1141 arrange with optical axis 111 intervals so that the first exiting surface 113 and the second exiting surface 114 go out luminous intensity and amount of light is different.As the lens of Fig. 5 (b) and since the first exiting surface 113 and the second exiting surface 114 go out luminous intensity and amount of light is different, can be so that plane of illumination be basic identical from the illumination of LED module distance side.
Be understandable that the operation principle of the lens 11 of Fig. 5 C, Fig. 5 D is also substantially identical with Fig. 5 A or Fig. 5 B.
In sum, compared with prior art, directive can have larger decay from the ejaculation light of LED module 10 the second exiting surface 114 more nearby than directive at a distance from LED module 10 although the first exiting surface 113 penetrates light, but because the first exiting surface 113 is compared with the second exiting surface 114, its emergent light is not dispersed or it goes out luminous intensity or amount of light is larger, thereby the ejaculation light that has remedied this first exiting surface 113 is owing to arriving the more decay that causes from LED module 10 at a distance, and then can make from LED module 10 and essentially identical illumination is arranged more nearby with from LED module 10 at a distance.
As shown in figure 10, the structural representation of its lens that provide for the second embodiment.Described the second embodiment compares with the first embodiment, only is the difference of lens.The lens 21 that described the second embodiment provides comprise an optical axis 211, a light source placement 212 that is used for arranging light source, first exiting surface 213 that is arranged on 212 opposites, described light source placement, one is arranged on and these the first exiting surface 213 homonymies and the second exiting surface 214 of intersecting with this first exiting surface 213, one is arranged on described first, the second exiting surface 213,214 and light source placement 212 between fully reflecting surface 215, a periphery and first that is arranged on this fully reflecting surface 215, the second exiting surface 213, has a transition face 216 between 214 the periphery, a counterbore (not indicating) that is arranged on light source placement 212 sides, and the 3rd exiting surface 217 that is arranged on a side between described light source placement 212 and the second exiting surface 214.
The each several part of the lens 11 of described optical axis 211, light source placement 212, first, second exiting surface 213,214, fully reflecting surface 215, transition face 216, counterbore and the first embodiment is basic identical, here repeats no more.The below only describes the 3rd exiting surface 217.
Described the 3rd exiting surface 217 is arranged on from the nearly side of plane of illumination, and the 3rd exiting surface 217 from light source placement 212 1 sides towards first, second exiting surface 213,214 extend.In addition, according to the needs of emergent light, the 3rd exiting surface 217 can be the plane, also can be cambered surface.When the 3rd exiting surface 217 is cambered surface, with respect to the optical axis 211 of lens 21, can be positive camber, also can be negative cruvature.Show respectively the pattern of these three kinds of curved surfaces such as Figure 11 A, Figure 11 B and Figure 11 C.In the present embodiment, described the second exiting surface 214 is one to have the cambered surface of positive camber.But, no matter be any curved surface, the tangent line at place, its camber line summit should be parallel with first, second exiting surface 213,214 intersection, is radiated on the plane of illumination to greatest extent with the outgoing luminous energy that guarantees the 3rd exiting surface 217.The cross section contour along the optical axis 211 of lens 21 of the 3rd exiting surface 217 can be parallel with the optical axis 211 of lens 21, and the optical axis 211 of the extended line lens 21 of this outline line is intersected.Simultaneously, in order to control from the amount of light of the 3rd exiting surface 217, the 3rd exiting surface 217 can arrange with described counterbore interval, also can directly pass this counterbore.
Owing to the existence of the 3rd exiting surface 217, can illuminate the plane of illumination of the 3rd exiting surface 217 sides, so that this plane of illumination has larger irradiated area.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all interior any modifications of doing in the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included in protection scope of the present invention in.
Claims (11)
1. lens, it comprises an optical axis, a light source placement that is used for arranging light source, it is characterized in that: described lens also comprise first exiting surface that is arranged on opposite, described light source placement, one is arranged on and this first exiting surface homonymy and the second exiting surface of intersecting with this first exiting surface, described first, has an intersection with described optical axis intersection between the second exiting surface, described first, the second exiting surface along optical axis and with this first, comprise respectively on the outline line in the cross section that the intersection of the second exiting surface is vertical at least one with described optical axis acutangulate tangent line on light direction, and this first, the outline line of the second exiting surface on this cross section axle centered by optical axis is asymmetric.
2. lens as claimed in claim 1, it is characterized in that: described the first exiting surface is the plane or has at least one concave surface.
3. lens as claimed in claim 1, it is characterized in that: described the second exiting surface is plane or cambered surface.
4. lens as claimed in claim 1, it is characterized in that: also be provided with a plurality of interconnective hexagon microballoon face lens on described first, second exiting surface, curvature, sagitta and the opposite side distance of these hexagon microballoon face lens is from arranging according to predetermined light beam width.
5. lens as claimed in claim 1, it is characterized in that: described lens also comprise a fully reflecting surface that is arranged between described first, second exiting surface and the light source placement, have a transition face between the periphery of this fully reflecting surface and the periphery of first, second exiting surface.
6. LED module, it comprises lens, with a LED who uses with this lens collocation, described lens, it comprises an optical axis, a light source placement that is used for arranging light source, it is characterized in that: described lens also comprise first exiting surface that is arranged on opposite, described light source placement, one is arranged on and this first exiting surface homonymy and the second exiting surface of intersecting with this first exiting surface, described first, has an intersection with described optical axis intersection between the second exiting surface, described first, the second exiting surface along optical axis and with this first, comprise respectively on the outline line in the cross section that the intersection of the second exiting surface is vertical at least one with described optical axis acutangulate tangent line on light direction, and this first, the outline line of the second exiting surface on this cross section axle centered by optical axis is asymmetric.
7. LED module as claimed in claim 6, it is characterized in that: described lens also comprise a counterbore, the longitudinal center line of this counterbore passes the optical axis of described lens, while LED is housed in this counterbore or the exiting surface of this LED flushes with the openend of this counterbore, and the center of this LED is arranged on this optical axis.
8. illuminator, it comprises at least one LED module, and at least one plane of illumination corresponding with corresponding LED module, this LED module comprises lens, with a LED who uses with this lens collocation, described lens, it comprises an optical axis, a light source placement that is used for arranging light source, it is characterized in that: described lens also comprise first exiting surface that is arranged on opposite, described light source placement, one is arranged on and this first exiting surface homonymy and the second exiting surface of intersecting with this first exiting surface, described first, has an intersection with described optical axis intersection between the second exiting surface, described first, the second exiting surface along optical axis and with this first, comprise respectively on the outline line in the cross section that the intersection of the second exiting surface is vertical at least one with described optical axis acutangulate tangent line on light direction, and this first, the outline line of the second exiting surface on this cross section axle centered by optical axis is asymmetric.
9. illuminator as claimed in claim 8 is characterized in that: the light directive plane of illumination side far away with respect to the LED module that described the first exiting surface penetrates, the light directive plane of illumination side nearer with respect to the LED module that described the second exiting surface penetrates.
10. illuminator as claimed in claim 8, it is characterized in that: described lens comprise that also one is arranged between described light source placement and first, second exiting surface and from the 3rd exiting surface of the nearly side of plane of illumination, the 3rd exiting surface extends towards first, second exiting surface from light source placement one side, and the tangent line at the place, summit of the 3rd exiting surface is parallel with the intersection of first, second exiting surface.
11. illuminator as claimed in claim 10 is characterized in that: described lens also comprise a counterbore, and the longitudinal center line of this counterbore passes the optical axis of described lens, and described the 3rd exiting surface and this counterbore interval arrange or pass this counterbore.
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| CN2012204835529U CN202884797U (en) | 2012-09-13 | 2012-09-13 | Lens, light-emitting diode (LED) module and illumination system utilizing LED module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672730A (en) * | 2012-09-13 | 2014-03-26 | 林万炯 | Lens, LED module and lighting system using LED module |
| CN104613414A (en) * | 2013-11-05 | 2015-05-13 | 林万炯 | Lens and LED module with the lens |
| CN106164576A (en) * | 2014-01-27 | 2016-11-23 | 飞利浦灯具控股公司 | Optical device and illumination apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672730A (en) * | 2012-09-13 | 2014-03-26 | 林万炯 | Lens, LED module and lighting system using LED module |
| CN103672730B (en) * | 2012-09-13 | 2017-02-22 | 赛尔富电子有限公司 | Lens, LED module and lighting system using LED module |
| CN104613414A (en) * | 2013-11-05 | 2015-05-13 | 林万炯 | Lens and LED module with the lens |
| CN106164576A (en) * | 2014-01-27 | 2016-11-23 | 飞利浦灯具控股公司 | Optical device and illumination apparatus |
| CN106164576B (en) * | 2014-01-27 | 2019-09-24 | 飞利浦灯具控股公司 | Optical device and luminaire |
| US10539292B2 (en) | 2014-01-27 | 2020-01-21 | Signify Holding B.V. | Optical device and luminaire |
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