CN202947076U - Lens, light-emitting diode (LED) device with lens and LED lamps and lanterns - Google Patents
Lens, light-emitting diode (LED) device with lens and LED lamps and lanterns Download PDFInfo
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- CN202947076U CN202947076U CN 201220439207 CN201220439207U CN202947076U CN 202947076 U CN202947076 U CN 202947076U CN 201220439207 CN201220439207 CN 201220439207 CN 201220439207 U CN201220439207 U CN 201220439207U CN 202947076 U CN202947076 U CN 202947076U
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Abstract
The utility model discloses a lens, a light-emitting diode (LED) device and LED lamps and lanterns. The lens (100) includes a bottom surface (101) with an incidence surface, a top surface (102) which is as an exit surface, and a lateral surface (103) used for connecting the bottom surface (101) and the top surface (102). The top surface is provided with a first region (1021) and a second region (1022). The first region (1021) is a horizontal plane, and the second region (1022) includes a base surface which is inclined relatively to the horizontal plane and at least one refraction protruding tooth (104) in a strip shape arranged on the base surface. The lens can achieve high-efficient and uniform off-axis rectangular light distribution.
Description
Technical field
The utility model relates to a kind of optical element for the LED luminescence component, relates to specifically a kind of lens.In addition, the utility model also relates to LED light-emitting device and the LED light fixture with these lens.
Background technology
LED is as a kind of new light sources, due to its have efficient high, photochromic pure, energy consumption is low, the life-span is long, reliability and durability, pollute less, control the advantages such as flexible, thereby be widely applied.
The light that LED sends distributes for lambert (Lambertian), and direct applied words will all be difficult to satisfy lighting demand under most of applicable cases if such light distributes without suitable optical element processing.Therefore, the illuminator take LED as light source being carried out secondary optical design is very necessary to improve its light distribution.Especially, the design of the optical element of LED luminescence component is most important to light distribution and the optics delivery efficiency of LED lamp.Especially in the application scenario of for example street lighting and wall lamp illumination, in order to satisfy the demand of using, more expect the LED lamp can uniform-illumination, efficient is high.In order to address this is that, it is found that the light ratio that the rectangular light distributions produces is more even, thereby more and more with the rectangular light distribution applications in the LED field.
In addition, especially for application scenarios such as street lamps, special expectation forms such illuminating effect, namely, only illuminate the desired road surface of illuminating, and can realize without illumination for the zone outside these road surfaces (for example, the residential building in adjacent street etc.) expectation, to avoid illumination affect these zones (for example, the night rest that affects the resident in adjacent street etc.).For example, be expected to be useful in all light that the LED street lamp of road lighting sends and cover road, and the light pollution outside road is almost nil.That is, wish that all light that send from the LED lamp depart from towards specific direction (for example, towards road), this is called " off-axis distribution (off-axis light distribution, polarisation distributes) ".
At present, there are following two kinds of known arrangement.
The first scheme is to adopt reflector.In this scheme, around LED, reflector is set, the light that can form by the reflection of reflector given shape distributes.But there is following at least defective in this scheme:
1) even can adjust light by the shape that changes reflector distributes, but still be difficult to realize good distributed rectangular;
2) use of reflector is difficult to change the Illumination Distribution that LED sends, that is, use the formed light of reflector to be distributed in the illumination of close photodistributed core higher than the illumination of close photodistributed edge, thereby the uneven illumination that produces is even;
3) reflector is made by having reflexive material usually, for example, is coated with the reflector of reflecting material (as Ag).But reflecting material has certain absorbability to light usually, thereby absorbs a part of light in reflection ray, thereby has reduced optical efficiency;
4) as described above, form the light distribution of given shape by reflector, must very critically control the shape of reflector.In the situation that such as the reflector that is formed by materials such as aluminium, this control volume to reflector shape has increased difficulty and the complexity of processing greatly now to the control of the tolerance of reflector surface, has increased manufacturing cost.
In addition, also there is a kind of solution, namely changes the light distribution by lens are set.This scheme is for example disclosed in Chinese utility model patent 200820229577.X.Please refer in Fig. 1 of Chinese utility model patent 200820229577.X-4(the application not shown), this utility model patent discloses a kind of rectangular light distribution LED, comprises chip, support, fluorescent glue and encapsulating material; Chip is fixed on support, coating fluorescent glue on it, and encapsulating material is packaged in outside chip; This encapsulating material is from horizontal longitudinal section, and its appearance core is cambered inwards inner concave, and the outer N-Side surf beyond inner concave is to be made of the different sphere of a plurality of curvature; From horizontal longitudinal section, encapsulating material is circular; From overlooking, encapsulating material is two spheroidal bodies that symmetric transverse is arranged.Utility model patent 200820229577.X is by carrying out the special construction design to the encapsulating material outer surface, namely its outside light-emitting area adopts the sphere design of a plurality of different curvature.Although this utility model patent can be realized a kind of light of distributed rectangular basically, it still has following shortcoming:
1) as Figure 1-3 and as mentioned above, it is to have complex-curved lens and realize by a kind of.Thereby, must strictly control the curvature of each curved surface of lens in the manufacture process of lens, otherwise curvature will change obviously that light distributes and/or the uniformity of illumination improperly.Obviously, this difficulty that can greatly increase processing to the complex control of lens shape, and then increase manufacturing cost;
2) obviously illustrate as Fig. 4, although this utility model patent can be realized a kind of light of distributed rectangular basically, it is not that aforesaid off-axis distributes that this light distributes, thereby it still can not satisfy the needs of the certain applications such as road lighting.
Thereby, need a kind of simply new optical element to change the direction of light emission, in order to can provide off-axis to distribute and the rectangular light distribution, and provide higher efficient and better uniformity.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, thereby provides a kind of optical element to realize that uniform off-axis rectangular light distributes.
According to an aspect of the present utility model, a kind of lens are provided, lens comprise bottom surface with plane of incidence, as the end face of exit facet and the side that connects bottom surface and end face, and end face has first area and second area, the first area is horizontal plane, and second area comprises the basal plane that tilts with respect to horizontal plane and is arranged on the refraction lobe of at least one strip on basal plane.
Further, the basal plane of second area tilts with respect to horizontal plane in the mode lower than the horizontal plane at place, first area.
Further, the inclination angle of the basal plane of second area and horizontal plane and refraction lobe arrange corresponding to the rectangular light distribution of off-axis.
Further, the first area is the first semicircle, and second area is the second semicircle that tilts with respect to the first semicircle, and the line of demarcation of the basal plane of first area and second area consists of respectively the diameter of the first semicircle and the second semicircle.
Further, the refraction lobe of at least one strip is arranged on whole basal plane.
Further, be provided with the refraction lobe of parallel a plurality of strips on basal plane.
Further, be provided with the lobe of a plurality of strips that are parallel to diameter on basal plane.
Further, a plurality of strip refraction lobes are arranged equally spacedly.
Further, each strip refraction lobe includes top margin and two side planes from top margin to downward-extension.
Further, the side plane towards the first area in two side planes is arranged perpendicular to the first area.
Further, the side plane angle of inclination with respect to the horizontal plane away from the first area in two side planes of strip refraction lobe differs from one another.
Further, in two side planes of strip refraction lobe away from the side plane of first area with respect to basal plane with an inclined at acute angles.
Further, the bottom surface comprises the zone of depression at least in part, and the zone of at least part of depression limits the container cavity that holds light source as light entrance face.
Further, the cross section of light entrance face is the multi-line section SPL.
Further, the multi-line section SPL axial symmetry curve of serving as reasons the curved section that is positioned at the top and consisting of to two angled straight lines of downward-extension from the two ends of curved section.
Further, curved section is arranged to respect to the recessed ground bending of two angled straight lines.
Further, the multi-line section SPL axial symmetry curve of serving as reasons the horizontal linear section that is positioned at the top and consisting of to two angled straight lines of downward-extension from the two ends of horizontal linear section.
Further, the side forms fully reflecting surface.
Further, the side is axial symmetry revolution fully reflecting surface.
Further, the exit facet diameter of lens is 60mm, is highly 40mm, and the angle that second area is inclined relative to horizontal is 5 °, and the quantity of strip refraction lobe is 59, and the spacing between strip refraction lobe is 0.5mm.
Further, lens are integrally formed by Shooting Technique.
Further, lens are formed by PC material or acrylic material.
According on the other hand of the present utility model, a kind of LED light-emitting device is provided, it comprises aforementioned any lens.
According to another aspect of the present utility model, a kind of LED light fixture is provided, it comprises aforesaid LED light-emitting device.
By various embodiment of the present utility model, can realize at least one or more in following effect:
1) can realize that according to lens of the present utility model high efficiency, uniform off-axis rectangular light distributes;
2) form inclined plane and lobe according to lens of the present utility model owing to adding simply with respect to conventional lenses, thus simple in structure the complex curvatures control in existing scheme, be easy to make;
3) can improve acquisition on traditional fully reflecting surface lens according to lens of the present utility model, thereby can keep the nominal size of lens, and and then make the change design flow of injection mold little;
4) but integrated injection molding form, the manufacturing of lens is simple;
5) with respect to existing scheme (for example, in the existing scheme of the first of describing in background technology, that is, forming the scheme of distributed rectangular with reflecting material), improved optical efficiency;
6) according to the utility model, can realize that required off-axis rectangular light distributes according to the size and shape of lens etc., thereby make scheme of the present utility model go in actual applications multiple demand to have good flexibility;
Thereby, take the LED road lighting as example, can satisfy well the road lighting requirement according to lens of the present utility model, make the light of LED street lamp form the off-axis distributed rectangular, all light that street lamp sends can only cover road, and the light pollution outside road is almost nil.Like this, for road lighting, as long as will have the LED light-emitting device of this lens or the LED light fixture is arranged according to rectilinear direction simply, thereby can simplify the design of street lamp mechanism, heat radiation and control power supply.
Because each LED light fixture can form uniform Illumination Distribution in whole rectangular illumination zone, so can be according to the lighting requirement on actual road surface and the height of lamp stand, change simply the quantity of LED, and need not change optical system, will have the use flexibility.
Description of drawings
Accompanying drawing consists of the part of this specification, is used for helping further to understand the utility model.Accompanying drawing illustrates embodiment of the present utility model, and is used for illustrating principle of the present utility model together with specification.Identical parts represent with identical label in the accompanying drawings.Shown in figure:
Fig. 1 schematically shows the stereogram according to lens of the present utility model;
Fig. 2 schematically shows cross-sectional view according to lens of the present utility model in the mode of stereogram;
Fig. 3 schematically shows the cross-sectional view according to lens of the present utility model;
Fig. 4 schematically shows the local amplification stereogram according to the refraction lobe of lens of the present utility model;
Fig. 5 schematically shows according to the light refraction figure of lens of the present utility model when the basal plane that tilts with respect to horizontal plane only is set;
Fig. 6 schematically shows according to the light refraction figure of lens of the present utility model when being provided with basal plane and refraction lobe;
Fig. 7 schematically shows according to the relation of the optic biradial angle of lens of the present utility model and luminous intensity and according to the curve map of the relation of a kind of optic biradial angle of conventional lenses and luminous intensity; And
Fig. 8 schematically shows off-axis rectangular light formed according to lens of the present utility model and distributes.
The specific embodiment
Hereinafter with reference to the accompanying drawing that shows the utility model exemplary embodiment, the utility model is described more fully.But the utility model can with multiple multi-form enforcement, not constructed and should not only limit to exemplary embodiment set forth herein.Certainly, it is in order to make this announcement more comprehensively with complete that these exemplary embodiments are provided, and can fully pass on scope of the present utility model to those skilled in the art.
Below, describe lens of the present utility model with reference to the accompanying drawings.
With reference to Fig. 1-4, comprise according to lens 100 of the present utility model have bottom surface 101, end face 102 and connect bottom surface 101 and the side 103 of end face 102, wherein, bottom surface 101 is the plane of incidence, and end face 102 is as exit facet.
Preferably, the side 103 of lens 100 forms fully reflecting surface (thereby hereinafter lens 100 also can be described as total reflection lens).More preferably, this side is axial symmetry revolution fully reflecting surface.Side 103 is set to axial symmetry revolution fully reflecting surface to have the following advantages at least: the conventional lenses that 1) has the axial symmetry fully reflecting surface is common lens, thereby the utility model can keep the nominal size of conventional lenses, only get final product improving on the basis of conventional lenses, thus can realize little to the change of injection mold design, be easy to the purpose such as processing; 2) in addition, form circle because have the end face of the conventional lenses of this axisymmetric shape, can easily control when the shape face becomes first area and second area (first area and second area will be discussed in more detail below) on the circular top of rule; 3) in addition, the lens with axial symmetry fully reflecting surface can make all light that enter from the bottom surface 101 as the plane of incidence all from end face 102 outgoing, have prevented from 103 transmiting light from the side, have improved the efficient of optical element; 4) and, due to all light all from end face 102 outgoing and not 103 transmissions from the side go out, thereby thereby more be conducive to distribute by according to structure of the present utility model, light being controlled the rectangular light that forms off-axis; 5) in addition, comprise that the whole lens 100 that reflect lobe can be integrally formed by Shooting Technique simply, can be by good molded formation of material of light transmittance such as PC material or acrylic material such as lens 100, thus can realize lens of the present utility model by this simple manufacture method.
The end face 102 of lens 100 has first area 1021 and second area 1022.As shown in the figure, first area 1021 is horizontal plane, and second area 1022 comprises the basal plane that tilts with respect to horizontal plane and is arranged on the refraction lobe 104 of at least one strip on basal plane.The basal plane that tilts is used for making the light off-axis from second area 1022 outgoing to distribute with the light that forms off-axis, and the refraction lobe is to distribute with the uniform off-axis rectangular light of final formation for the light of further adjusting this off-axis distributes, and these will described with reference to Fig. 5-8 after a while in further detail.
With reference to Fig. 1-4, for the light that forms off-axis distributes, the basal plane of second area 1022 tilts with respect to this horizontal plane in the mode lower than the horizontal plane at place, first area, shown in tiltangleθ as shown in FIG..Preferably, first area 1021 is the first semicircle, and second area is the second semicircle that tilts with respect to the first semicircle, and the line of demarcation of the basal plane of first area and second area 1022 consists of respectively the diameter of the first semicircle and the second semicircle, that is, the basal plane of second area is by described diameter.In other words, first area and second area 1022 occupy half of end face separately.Further, can all arrange the refraction lobe of strip on whole basal plane, that is, make the layout area of refraction lobe occupy half of end face.
As shown in Fig. 1-4, the refraction lobe 104 on basal plane is parallel to each other, and preferably, these refraction lobes 104 all are parallel to described diameter.Because the processing and manufacturing of parallel teeth 104 is relatively easy, thereby the complex curvatures in existing scheme (for example disclosed lens in Chinese utility model patent 200820229577.X) is controlled, all relatively simply too much according to the design and manufacture of refraction lobe of the present utility model, greatly reduce cost.In addition, be arranged to be parallel to described diameter if will reflect lobe, can more easily set the shape (for example, the tilt angle alpha of the side 1042 of the triangle lobe that will mention of the below) of refraction lobe.
But be also can expect be, also parallel refraction lobe can be arranged to described diameter angledly, can realize that so equally also the rectangular light of off-axis distributes.
As shown in Fig. 1-4, strip refraction lobe 104 is arranged each other equally spacedly further.This equally spaced arrangement can further make the setting of refraction lobe become easily, thereby makes its design and manufacture simple, has further reduced cost.
The shape of refraction lobe 104 can be adjusted as required.But consider the simplicity of the design and manufacture of refraction lobe, refraction lobe 104 can be arranged to have the triangular-section.Specifically, each strip refraction lobe 104 includes top margin and two side planes 1041 from top margin to downward-extension and 1042.Thereby, can be by adjusting aforesaid tilt angle theta and realizing that by the angle of adjusting side plane 1041 and 1042 rectangular light distributes.
Easy for the design and manufacture that further makes the refraction lobe, preferably the side plane 1041 towards the first area in two side planes is arranged perpendicular to first area 1021.Thereby, can be by adjusting aforesaid tilt angle theta and realize that by the angle [alpha] away from the side plane 1042 of first area that adjustment reflects lobe 104 rectangular light distributes, and need not to adjust extraly the angle of the side 1041 of refraction lobe.As shown in the figure, the side plane 1042 away from the first area in two side planes of strip refraction lobe 104 with respect to the horizontal plane can a sharp angle α tilt, thereby guarantees that better off-axis light distributes.
As shown in Figure 3, the cross section of light entrance face can be the multi-line section SPL, thereby can regulate by the shape of regulating SPL the direction that light incides lens inside.The axial symmetry curve that multi-line section SPL shown in Fig. 3 is served as reasons the curved section 1015 that is positioned at the top and consisted of to two angled straight lines 1013 of downward-extension from the two ends of curved section.Curved section 1015 can be arranged to downwards recessedly crooked with respect to two angled straight lines 1013 as illustrated in fig. 3, thereby makes the light of incident be gathered in better end face.Perhaps replacedly, curved section 1015 also can be arranged to crooked projectedly with respect to two angled straight lines 1013 downwards.Perhaps also replacedly, can also the serve as reasons horizontal linear section 1015 that is positioned at the top and from the two ends of horizontal linear section to two axial symmetry curves that the straight line 1013 that inclines consists of of downward-extension of multi-line section SPL.That is to say, arranging of the angle of inclination of the shape of curved section 1015 and angled straight lines 1013 can be adjusted as required, especially can adjust without the light quantity that side 103 reflections are directly incident on outgoing end face 102 according to the desired light that is entered by light entrance face, thereby the adjustment of tiltangleθ that can aid in to a certain extent Adjusting Shape, the basal plane of refraction lobe realizes that the rectangular light of off-axis distributes.
A vital idea of the present utility model is by the basal plane that tilts and is arranged at lobe on basal plane and forms uniform off-axis rectangular light and distribute.Based on this design, those skilled in the art can carry out the incompatible above-mentioned embodiment that this specification is provided of multiple combination/subgroup to above-mentioned described feature and carry out modification, thereby the rectangular light that realizes off-axis distributes.For example, area size that can be by the end face that setting, the second area of each line segment 1013 of the SPL of the setting of the laterally inclined angle of the quantity and spacing of the inclination angle of basal plane, refraction lobe, refraction lobe, fully reflecting surface, the plane of incidence and 1015 is occupied etc. feature makes up/and subgroup is incompatible realizes that the off-axis rectangular light distributes.These combination/sub-portfolios can be carried out according to the size of lens, shape, the desired light demand that distributes etc.
For example, lens can be set as described below: the exit facet diameter of total reflection lens 100 is 60mm, be highly 40mm, the angle θ that second area 1022 is inclined relative to horizontal is 5 °, zone and quantity that strip refraction lobe occupies half outgoing end face are 59, and the spacing between strip refraction lobe is 0.5mm.Wherein, the tilt angle alpha of each strip refraction lobe is different respectively, can be by experiment, the mode such as simulation determines, repeat no more herein.
Below, be briefly described the photodistributed principle of rectangle that forms off-axis according to lens of the present utility model in conjunction with Fig. 5-8.
Be understandable that, for the conventional lenses that does not arrange according to oblique base of the present utility model and refraction lobe, from the light of its end face outgoing with the conglobate distribution of shape.Explain that for convenient the utility model forms the photodistributed principle of off-axis rectangle, at first schematically illustrate according to the light refraction of lens of the present utility model when the basal plane that tilts with respect to horizontal plane only is set with reference to Fig. 5.
With reference to Fig. 5, it shows according to total reflection lens 100 of the present utility model, projection surface 107 that the light distributions will throw and the axis of symmetry X of total reflection lens.Now first see the first area 1021(of total reflection lens 100 namely, be positioned at the zone on axis X right side), the first area 1021 of total reflection lens 100 is in horizontal plane, this is identical with traditional total reflection lens, thereby the light of 1021 outgoing from the first area (for example, shown light 1061 and 1062) formed light distributes and does not have what variation with respect to traditional total reflection lens,, formation is positioned at the semicircle light distribution on axis X right side on reflecting surface 107 that is.And then the second area 1022(that sees total reflection lens 100 is, be positioned at the zone in axis X left side), take shown light 1051 as example, thus the light that is positioned at the axis X left part 1051 that can find in conventional lenses originally can be incident upon projection surface 107 departed from due to the inclination of basal plane will be incident upon projection surface 107 be positioned at axis X right side part.In fact, due to the setting of the basal plane that tilts, still towards the left part outgoing of X-axis, all be offset to the right side of X-axis except a small amount of light (for example shown in light 1052) from the overwhelming majority of the light of second area 1022 outgoing.Thereby the basal plane of inclination has realized that tentatively the light that departs from distributes.
further, although in Fig. 5 and 6 due to the former of map sheet size thereby illustrate lens 100 closer apart from projection surface 107, but in actual applications, for example, in the application such as street lighting, lens 100 are distant with the distance of projection surface 107, thereby conceivable arriving, in the application such as street lighting, light 1051 is usually located at the semicircle photodistributed outside of light on reflecting surface 107 from first area 1021 outgoing in the distribution on projection surface 107, and due to the inclination of basal plane, from the distribution of light on reflecting surface 107 of second area 1022 outgoing by ovalization.
From top description as can be known, the basal plane that tilts has realized that preliminary off-axis light distributes, but still has part light 1052 towards the left part outgoing of X-axis, and institute's optical axis X right side distribution that is formed on is only a kind of is similar to half elliptic light distribution, that is not, that rectangular light distributes.For this distribution is further adjusted, refraction lobe 104 is set on the basal plane that tilts.
Fig. 6 schematically shows according to the light refraction figure of lens of the present utility model when being provided with basal plane and refraction lobe.
An effect of the setting of lobe is the exit direction that changes light 1052.With reference to Fig. 6, can see that at first the direction of light 1052 is changed into towards the right side of X-axis by the original left part outgoing towards X-axis and divided outgoing due to the setting of refraction lobe.Be set to occupy at the basal plane of second area 1022 preferably lens 100 end face half and in the situation that all arrange the refraction lobe on the whole basal plane of second area, thereby can realize such advantage: the basal plane of inclination can be with from half light shift of lens 100 outgoing to the X-axis right side, that is, will be from half whole light shifts of second area 1022 outgoing of the end face that occupies lens 100 to the X-axis right side.This can find out with reference to Fig. 8, and formed light distributes and all is positioned at a side of X-axis (being the 0-0 axle).
Another effect of the setting of lobe is to be modified to uniform rectangular light distribution with being similar to half elliptic light distribution.Although can not find out well this effect from Fig. 6, but conceivable arriving, the light of side that incides refraction lobe 104 from all directions is refracted into the half elliptic outside (exactly with some after through the refraction of the side of lobe, be refracted to the place, the photodistributed bight of rectangle of final formation), distribute thereby form rectangular light.Such refraction also brings a benefit, that is, the light shift of the core that original illumination is stronger arrives the weak peripheral part of illumination, thereby finally makes the photodistributed uniform-illumination of rectangle.
With reference to Fig. 7, it schematically shows according to the relations I I of the optic biradial angle of lens of the present utility model and luminous intensity and according to the curve map of the relations I of the optic biradial angle of conventional lenses and luminous intensity.Can find out significantly that the light of this conventional lenses does not form the off-axis light distribution, distributes and formed uniform off-axis rectangular light according to lens of the present utility model from this curve map.This rectangular light distributes and can also find out significantly from Fig. 8.And, measure by experiment, high according to lens efficiency of the present utility model, can be up to 86.4%
These are only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All any modifications of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model within spirit of the present utility model and principle.
Claims (24)
1. lens, described lens (100) comprise bottom surface (101) with plane of incidence, as the end face (102) of exit facet and connect described bottom surface (101) and the side (103) of described end face (102), it is characterized in that, described end face has first area (1021) and second area (1022), first area (1021) is horizontal plane, and described second area (1022) comprises the basal plane that tilts with respect to horizontal plane and is arranged on the refraction lobe (104) of at least one strip on described basal plane.
2. lens according to claim 1, is characterized in that, the basal plane of described second area (1022) tilts with respect to horizontal plane in the mode lower than the horizontal plane at place, described first area.
3. lens according to claim 1 and 2, is characterized in that, the basal plane of described second area (1022) and the inclination angle of described horizontal plane and described refraction lobe arrange corresponding to the rectangular light distribution of off-axis.
4. lens according to claim 1 and 2, it is characterized in that, described first area (1021) is the first semicircle, described second area is the second semicircle that tilts with respect to described the first semicircle, and the line of demarcation of the basal plane of described first area and described second area (1022) consists of respectively the diameter of described the first semicircle and described the second semicircle.
5. lens according to claim 4, is characterized in that, the refraction lobe of described at least one strip is arranged on whole basal plane.
6. lens according to claim 1 and 2, is characterized in that, is provided with the refraction lobe (104) of parallel a plurality of strips on described basal plane.
7. lens according to claim 6, is characterized in that, is provided with the lobe (104) of a plurality of strips that are parallel to described diameter on described basal plane.
8. lens according to claim 6, is characterized in that, described a plurality of strip refraction lobes (104) are arranged equally spacedly.
9. lens according to claim 1 and 2, is characterized in that, each described strip refraction lobe (104) includes top margin and two side planes from described top margin to downward-extension.
10. lens according to claim 9, is characterized in that, the side plane towards described first area (1041) in described two side planes is arranged perpendicular to described first area (1021).
11. lens according to claim 9 is characterized in that, the side plane away from described first area (1042) angle of inclination with respect to the horizontal plane in described two side planes of each described strip refraction lobe (104) differs from one another.
12. lens according to claim 9 is characterized in that, the side plane away from described first area (1042) in described two side planes of each described strip refraction lobe (104) with respect to described horizontal plane with an inclined at acute angles.
13. lens according to claim 1 and 2 is characterized in that, described bottom surface (101) comprise the zone of depression at least in part, and the zone of described at least part of depression limits the container cavity (1011) that holds light source as light entrance face.
14. lens according to claim 13 is characterized in that, the cross section of described light entrance face is the multi-line section SPL.
15. lens according to claim 14 is characterized in that, the axial symmetry curve that described multi-line section SPL is served as reasons the curved section (1015) that is positioned at the top and consisted of to two angled straight lines (1013) of downward-extension from the two ends of described curved section.
16. lens according to claim 15 is characterized in that, described curved section (1015) is arranged to respect to described two angled straight lines (1013) recessed ground bending.
17. lens according to claim 14, it is characterized in that the axial symmetry curve that described multi-line section SPL is served as reasons the horizontal linear section (1015) that is positioned at the top and consisted of to two angled straight lines (1013) of downward-extension from the two ends of described horizontal linear section.
18. lens according to claim 1 and 2 is characterized in that, described side (103) form fully reflecting surface.
19. lens according to claim 18 is characterized in that, described side (103) are axial symmetry revolution fully reflecting surface.
20. lens according to claim 1 and 2, it is characterized in that, the exit facet diameter of described lens (100) is 60mm, be highly 40mm, the angle that described second area (1022) is inclined relative to horizontal is 5 °, the quantity of described strip refraction lobe is 59, and the spacing between described strip refraction lobe is 0.5mm.
21. lens according to claim 1 and 2 is characterized in that, described lens (100) are integrally formed by Shooting Technique.
22. lens according to claim 1 and 2 is characterized in that, described lens (100) are formed by PC material or acrylic material.
23. a LED light-emitting device is characterized in that, comprises the described lens of any one according to claim 1-22.
24. a LED light fixture is characterized in that, comprises LED light-emitting device according to claim 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220439207 CN202947076U (en) | 2012-08-30 | 2012-08-30 | Lens, light-emitting diode (LED) device with lens and LED lamps and lanterns |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220439207 CN202947076U (en) | 2012-08-30 | 2012-08-30 | Lens, light-emitting diode (LED) device with lens and LED lamps and lanterns |
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| CN202947076U true CN202947076U (en) | 2013-05-22 |
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| CN 201220439207 Expired - Fee Related CN202947076U (en) | 2012-08-30 | 2012-08-30 | Lens, light-emitting diode (LED) device with lens and LED lamps and lanterns |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387370A (en) * | 2015-11-17 | 2016-03-09 | 浙江农林大学 | Lighting system based on strip-shaped faculae |
| CN106164576A (en) * | 2014-01-27 | 2016-11-23 | 飞利浦灯具控股公司 | Optical device and illumination apparatus |
-
2012
- 2012-08-30 CN CN 201220439207 patent/CN202947076U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105387370A (en) * | 2015-11-17 | 2016-03-09 | 浙江农林大学 | Lighting system based on strip-shaped faculae |
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Granted publication date: 20130522 Termination date: 20180830 |