CN102109132B - LED (Light Emitting Diode) light source assembly applied to low-order lighting and LED lamp applied to low-order lighting - Google Patents
LED (Light Emitting Diode) light source assembly applied to low-order lighting and LED lamp applied to low-order lighting Download PDFInfo
- Publication number
- CN102109132B CN102109132B CN2010106233365A CN201010623336A CN102109132B CN 102109132 B CN102109132 B CN 102109132B CN 2010106233365 A CN2010106233365 A CN 2010106233365A CN 201010623336 A CN201010623336 A CN 201010623336A CN 102109132 B CN102109132 B CN 102109132B
- Authority
- CN
- China
- Prior art keywords
- light source
- led
- led light
- lens
- free form
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses an LED (Light Emitting Diode) lamp applied to low-order lighting, which comprises at least one LED light source assembly, wherein the LED light source assembly comprises multiple LED light source units which are installed on the same LED substrate and are in an array assignment mode; each LED light source unit comprises a light source and a lens which is covered on the light source; the lens is provided with a concave incidence surface for the incidence of light rays of the light source and an emergence surface for the emergence of the light rays; the emergence surface is a free curved surface and is provided with a boundary which divides the free curved surface into a large side and a small side; and the curvature change of the curved surface at the side with larger area is smaller than the curvature change of the curved surface at the side with smaller area, thus the light rays are deflected to the curved surface side with the maximum area on the emergence surface through the lens. The LED light source assembly and LED lamp disclosed by the invention can enable the light rays to be directionally emitted and focused, thus the utilization efficiency of light energy is greatly enhanced; various installation modes are specially designed aiming at a special application environment, and an excellent heat radiating design is designed aiming at different installation modes.
Description
Technical field
The invention belongs to lighting field, specifically, relate to a kind of LED(light emitting diode that is applied to low position lighting) light fixture.
Background technology
The appearance that road lighting is accompanied by road occurs, and from each side such as security, comfortableness, conveniences, for people's daily traffic, lives and brought convenience.But the common pavement of road lighting apparatus in market is all conventional rod-type roads light substantially now, and along with the progress of science and technology, people start to find that conventional rod-type roads light has larger limitation in many application places.
Brought many inconvenience because the lamp stand of conventional rod-type roads light is higher to installation and maintenance.In the installation and maintenance process, the staff needs work high above the ground, thereby exists certain personal safety hidden danger.And, the lighting apparatus that high-altitude hangs, the wind resistance of its permanent plant (the lamp lamp stand mainly shows the way), antidetonation, weather resistance etc. have been proposed very strict requirement, also exist simultaneously certain potential safety hazard, the application places such as bridge particularly, rod-type roads light are subjected to the impact of the environmental factors such as wind-force and the vibrations that produce and the vibration matrix that even can satisfy the need produces damaging influence.
In addition, the visual impact that brings to the driver due to dazzle, can greatly reduce perception comfortableness and the visual identity ability of human eye, thereby cause hidden peril of accident, therefore in road traffic illumination application, the requirement aspect dazzle control is very strict, and conventional rod-type roads light is due to the requirement of irradiating width, rising angle is wider, is difficult in dazzle control.
On the other hand, also be based on the limitation of luminous intensity distribution technology, in the special single file such as ring road, the complicated road application places such as how curved, conventional rod-type roads light is due to its floodlighting characteristic, light path not exclusively concentrates on road surface, make the guided bone of road lighting not reach demand, cause the road lighting blind spot, and then easily cause traffic accident.
Summary of the invention
In view of this, technical problem to be solved by this invention is to provide a kind of LED light fixture that is applied to low position lighting, for ring road, overhead bridge circuit, general bridge, viaduct, bypass, stop road etc. temporarily and be not suitable for installing the application places of conventional rod-type roads light, coordinate its low level to install to meet the lighting demand in most of special applications place, namely directional transmissions and range of exposures extensively and not produce dazzle.
In order to solve the problems of the technologies described above, the invention provides a kind of LED light fixture that is applied to low position lighting, comprising: at least one LED light source assembly; Described LED light source assembly also comprises: the LED light source unit that a plurality of arrays that are installed on same LED substrate are arranged; Described LED light source unit, further comprise: light source and the lens that are located on described light source, described lens have incidence surface and the exiting surface for this beam projecting of the indent of the light incident for light source, this exiting surface is a free form surface, it has a line of demarcation this free form surface is divided into big or small both sides, the curvature of the larger N-Side surf of area changes to be delayed in the less N-Side surf of area, with this, makes light through the curved sides deflection of described lens to area maximum on this exiting surface; This incidence surface comprises at least two quadratic surfaces, and described quadratic surface is arranged side by side, and described quadric curvature is along the orientation monotone variation of described curved surface, with this, makes light through the curved sides deflection of described lens to curvature minimum on this incidence surface; Wherein, the central shaft of this incidence surface passes this light source position; Described line of demarcation is one to be parallel to quadric orientation on this incidence surface and to comprise the projection of plane on this exiting surface of described central shaft; There is an angle in the trend direction that on this exiting surface, the curvature of free form surface changes quadric orientation on the projection on horizontal plane and this incidence surface.
The present invention also provides a kind of LED light fixture that is applied to low position lighting, comprising: at least one LED light source assembly; Described LED light source assembly also comprises: the LED light source unit that a plurality of arrays that are installed on same LED substrate are arranged; Described LED light source unit, further comprise: light source and the lens that are located on described light source, described lens have incidence surface and the exiting surface for this beam projecting of the indent of the light incident for light source, this exiting surface is a free form surface, it has a line of demarcation this free form surface is divided into big or small both sides, the curvature of the larger N-Side surf of area changes to be delayed in the less N-Side surf of area, with this, makes light through the curved sides deflection of described lens to area maximum on this exiting surface; This incidence surface comprises a plurality of shapes free form surface of exiting surface as described, described free form surface is arranged side by side, the trend that changes along the curvature of each free form surface of orientation of described free form surface is consistent, makes light change a mild lateral deviation through described lens to the curvature of each free curved surface on this incidence surface with this and turns; Wherein, the central shaft of this incidence surface passes this light source position; Described line of demarcation is the trend direction that changes of a curvature that is parallel to free form surface on this incidence surface and the projection of plane on this exiting surface that comprises described central shaft; There is an angle in the trend direction that the curvature of trend direction free form surface on the projection on horizontal plane and this incidence surface that on this exiting surface, the curvature of free form surface changes changes.
Compare the technique effect that the present invention obtains with existing scheme:
The technical program solved at ring road, overhead bridge circuit, general bridge, grade separation, bypass, stop the problem that the application places such as road is not suitable for installing conventional rod-type roads light temporarily, for these special applied environments special carry out shape-designing, structural design, luminous intensity distribution design; For the diversified mounting means of the special design of these special applied environments, as embedded installation, sucking-hanging type installation etc.; Carry out the good heat radiating design for different mounting means;
Can and gather the light directional transmissions, greatly improve the utilization ratio of luminous energy, in actual applications along road direction, the light of light fixture outgoing should be as far as possible along the direction of traffic irradiation, and the distance of irradiation is near the spacing of two lamps; And importantly can avoid light oppositely to penetrate,, in case shine driver's eyes, produce the unfavorable factors such as dazzle; In addition, at vertical road direction, the light of light fixture outgoing can photograph as much as possible to road surface, the distance of this direction irradiation, near the width of road, provides better emitting light path, increases the efficiency of light energy utilization on road surface and the vertical and horizontal illumination uniformity on road surface;
The technical program has rational structural design, high-intensity lamp body structure, good radiating effect, diversified mounting means, luminous intensity distribution design accurately, printing opacity utilization rate efficiently, guarantee that light fixture can work under the special outdoor environment of sternness, have more outstanding optical application performance.
Description of drawings
Fig. 1 is decomposition texture schematic diagram of the present invention;
Fig. 2 is cross-sectional view of the present invention;
Fig. 3 is the schematic diagram of LED light source of the present invention unit;
Fig. 4 is the decomposition texture schematic diagram of LED light source assembly of the present invention;
Fig. 5 is the decomposition texture schematic diagram of LED light source of the present invention unit;
Fig. 6 is the view of not ipsilateral of the LED lens of corresponding diagram 5;
Fig. 7 is the index path of light of the present invention through the LED lens.
Fig. 8 is the lens of the present invention schematic diagrames of arranging.
Fig. 9 is the index path that adds after upper reflector of the present invention.
Figure 10 is light fixture range of exposures schematic diagram of the present invention.
Figure 11 is the distribution curve flux figure that the present invention surveys.
Main title in Fig. 1-5: end cap 1, collision mat 2, lamp body 3, LED substrate 4, LED light source 5, LED lens 6, reflector 7, light penetrating panel 8, ray-screening board 9, LED driving power 10, electric support 11, respirator 12, water joint 13.
The specific embodiment
Below will coordinate graphic and embodiment describes embodiments of the present invention in detail, by this to the present invention how the application technology means implementation procedure that solves technical problem and reach the technology effect can fully understand and implement according to this.
Core idea of the present invention is: be applied to the LED light source assembly of low position lighting, comprise: the LED light source unit that a plurality of arrays that are installed on same LED substrate are arranged; Described LED light source unit, comprise: light source and the lens that are located on described light source, described lens have incidence surface and the exiting surface for this beam projecting of the indent of the light incident for light source, this exiting surface is a free form surface, it has a line of demarcation this free form surface is divided into big or small both sides, the curvature of the larger N-Side surf of area changes to be delayed in the less N-Side surf of area, with this, makes light through the curved sides deflection of described lens to area maximum on this exiting surface.This incidence surface comprises at least two quadratic surfaces or at least one shape free form surface of exiting surface as described, provides the side of extending forward direction and downward direction towards road surface according to the formula luminous intensity distribution.
As shown in Figure 1, 2, be applied to the LED light fixture of low position lighting, comprise: end cap 1, collision mat 2, lamp body 3, LED substrate 4, LED light source 5, LED lens 6, reflector 7, light penetrating panel 8, ray-screening board 9, LED driving power 10, electric support 11, respirator 12, water joint 13 etc.
This light fixture comprises 18 LEDs light sources 5, and wherein every six LEDs light sources 5 are packaged on a LED substrate 4 and form a LED light source assembly, and this light fixture has altogether three LED light source assemblies, and these LED light source assemblies provide illumination jointly.Wherein, every LEDs light source 5 disposes LED lens 6 and a reflector 7, and LED lens 6 are fixed on LED substrate 4, and reflector 7 is fixed on LED lens 6, and wherein, LED lens 6 cover LED light source 5, and reflector 7 is assemblied in lens 6 one sides.Certainly, the arrangement mode of quantity of light source and formation LED light source assembly can be also other quantity and mode, this quantity of light source and/or LED light source component application are in actual light fixture, generally all by certain spacing rule, arrange, but do not limit the number that this quantity of light source and/or LED light source assembly use, the technical program is not limited to this.
Lamp body 3 is the constant cross-section stretching structure, and described cross section is U-shaped structure, with reference to Fig. 1 and 2.During described LED light fixture horizontal positioned, the base in described U-shaped cross section and the floor projection on this base have an angle, with cooperated with LED lens 6, realize and adjust the luminous intensity distribution that extends forward direction and downward direction towards road surface.
Thereby end cap 1 is assemblied in the both sides of the stretching structure of lamp body 3 and forms an open cavity, and wherein lamp body 3 is connected and fixed by thread mechanism with end cap 1, and LED substrate 4, LED light source 5, LED lens 6, reflector 7 and ray-screening board 9 are arranged in cavity.Light penetrating panel 8 is arranged on the cavity that covers described opening on lamp body 3, thereby light penetrating panel 8 and lamp body 3, end cap 1 surround an airtight cavity with lamp body inside.
Described end cap has position and/or the different installing component of closure, as the connecting hole position etc., to adapt to embedded or sucking-hanging type is installed.Specifically, prolong the direction perforate of light penetrating panel 8 sides on end cap 1, to adapt to embedded installation; Prolong the direction perforate perpendicular to light penetrating panel 8 on end cap 1, to adapt to sucking-hanging type, install.LED driving power 10 is placed in the radiating fin outside of lamp body 3 outer walls, and electrical appliance support 11 is connected and fixed LED driving power 10 and lamp body 3.
In addition, the present embodiment is outdoor application luminaire, also add the waterproof constructions such as collision mat, water joint, fluid sealant,, as respirator 12, water joint 13 being assemblied in the position of the upper contiguous LED driving power 10 of lamp body 3, make the integral protection grade be not less than IP65.Between end cap 1 and lamp body 3, junction is provided with collision mat 2; Sealant sealing is used in junction between light penetrating panel 8 and end cap 1, lamp body 3.
In the material part of whole light fixture, the material of all exposed structures all possesses certain corrosion-resistant, ageing resistace.Lamp body 3 adopts the aluminum alloy materials aluminium extruded moulding of high-qualitys, and is firm in structure, shock resistance is good, good heat dissipation effect; End cap 1 adopts the aluminium alloy compression casting moulding of high-quality, and structural strength is high, and is easy for installation, practical; Light penetrating panel 8 adopts high strength woven design safety glass, effectively suppresses dazzle, and structural strength is high, and anti-strain is strong, and light penetrating panel 8 inner surfaces are striped or woven design or frosted structure, further to reduce the light fixture dazzle; Reflector 7 adopts the higher white plastic injection mo(u)lding of reflectivity, the surface treatment of outer surface and the different morals of inner surface employing.Reduce dazzle and light pollution, improve light utilization efficiency; LED lens 6 adopt the transparent plastic precise forming of superb optical performance, as the PMMA(polymethyl methacrylate) or the PC(Merlon) plastics, luminous intensity distribution is accurate, and light transmittance is high.
As shown in Figure 3, for LED light source 5, with the LED lens 6 of LED light source 5 collocation and the reflector 7 that is placed in the side of these LED lens 6, be assembled into a LED light source unit, some LED light source cell array formulas are arranged and can be obtained the LED light source assembly.The planform of LED light source 5 does not limit.LED lens 6 leave screens, and reflector 7 is placed in described screens, perhaps also reflector 7 can be fixed on LED substrate 4 together with LED lens 6 use screws.
As shown in Figure 4, a plurality of LED light sources unit is assembled on same LED substrate 4, thereby obtains a LED light source assembly.LED light source 5 is arranged on LED substrate 4, and LED lens 6 are in the same place by the buckle close fit with LED reflector 7.Thereby be arranged on LED lens 6 on LED substrate 4 again and cover LED light source 5, LED lens 6, LED reflector 7, LED light source 5 and LED substrate 4 are assembled together.
Below discuss the realization of the LED light source unit that is formed by LED light source 5, LED lens 6 and reflector 7 in detail.
At first, LED lens 6 are described.For better emitting light path is provided, increase the efficiency of light energy utilization on road surface and the vertical and horizontal illumination uniformity on road surface, LED lens 6 have incidence surface and the exiting surface for this beam projecting of an indent for light source incident,, by the different axial arrangement of design exiting surface and incidence surface, make light by described two faces to the direction in space deflection of appointment.Can be realized by following two schemes substantially:
The first scheme-this incidence surface comprises at least two quadratic surfaces, and described curved surface is arranged side by side, and the curvature of described curved surface is along the orientation monotone variation of described curved surface; This exiting surface is a free form surface, and it has a line of demarcation this free form surface is divided into big or small both sides, and the curvature of the larger N-Side surf of area changes to be delayed in the less N-Side surf of area; Make light through the curved sides deflection of described lens to area maximum on the curved sides of curvature minimum on this incidence surface and this exiting surface with this;
The central shaft (being equivalent to Z axis in the following examples) that should as far as possible guarantee described incidence surface when wherein, described lens cover light source passes described light source position (being equivalent to O point in the following examples); Described line of demarcation, be one to be parallel to quadric orientation on incidence surface (orientation namely is equivalent to X-direction in the following embodiments, when being a plurality of quadratic surface, it is arranged also for arranging and extending on X-direction) and comprise the projection of plane on described exiting surface of the central shaft of incidence surface; Can be according to the deviation direction of desired emergent ray when lens are one-body molded, make quadric orientation existence one corresponding angle on the projection (namely being equivalent to Y direction in the following examples) of trend direction on horizontal plane that the curvature of free form surface on exiting surface changes and incidence surface.
Alternative plan-this exiting surface is a free form surface, and it has a line of demarcation this free form surface is divided into big or small both sides, and the curvature of the larger N-Side surf of area changes to be delayed in the less N-Side surf of area; This incidence surface comprises at least one shape free form surface of exiting surface as described, as be a plurality of as described in free form surface, described free form surface is arranged side by side, the trend that changes along the curvature of each free form surface of orientation of described free form surface consistent (be each free form surface in orientation be same direction side curved surface area greatly and curvature change gently, the less and curvature of the area of the curved surface of other direction side changes hurriedly); Make light change the curved sides deflection of area maximum on a mild side and this exiting surface to the curvature of each free curved surface on this incidence surface through described lens with this;
The central shaft (being equivalent to Z axis in the following examples) that should as far as possible guarantee described incidence surface when wherein, described lens cover light source passes described light source position (being equivalent to O point in the following examples); Described line of demarcation, be the trend direction (namely curved surface orientation when for a plurality of free form surface, namely be equivalent to X-direction in the following embodiments) that changes of a curvature that is parallel to free form surface on incidence surface and the projection of plane on described exiting surface that comprises the central shaft of incidence surface; Can be according to the deviation direction of desired emergent ray when lens are one-body molded, the trend direction existence one corresponding angle that the curvature of free form surface on the projection (namely being equivalent to Y direction in the following examples) of trend direction on horizontal plane that the curvature of free form surface on exiting surface changes and incidence surface is changed.
Because above-mentioned two kinds of main implementation principles are identical, therefore only take indent light inlet face in the first scheme, comprise that two quadratic surfaces are described as example below, other implementations, contain the structure of a plurality of quadratic surfaces or at least one free form surface as indent light inlet bread, just repeat no longer one by one.In addition, above-mentioned angle arranges as required, in the embodiment of this programme, for convenience, only with X-axis and Y-axis, be an angle of 90 degrees and be described, but this programme is not limited to this.
Comprise that take indent light inlet face in the first scheme two quadratic surfaces describe LED lens 6 as example.
For convenience of subsequent descriptions, introduce a three-dimensional rectangular coordinate system herein, as shown in Figure 5, wherein X-axis is corresponding to the width (being left and right directions) of LED lens 6, Y-axis is corresponding to the length direction (being fore-and-aft direction) of LED lens 6, Z axis is corresponding to the short transverse (being above-below direction) of LED lens 6, and simultaneously, Z axis is also the optical axis of LED light source 5.Take the optical axis (Z axis) of LED light source 5 as benchmark, LED lens 6 cover on LED light source 5 and the central shaft of the indent incidence surface of LED lens 6 and the optical axis coincidence of LED light source 5, namely make the central shaft of the indent incidence surface of LED lens 6 also be Z axis.Can change peripheral structure except lens incidence surface and exiting surface so that fixed reflector.
Fig. 6 is the view of not ipsilateral of the LED lens 6 of corresponding diagram 5, with reference to Fig. 6 c, wherein 1a is exiting surface, but this exiting surface 1a and be a monoblock sphere curved surface unlike traditional lens exiting surface, neither be formed by the smooth connection of polylith curved surface, this curved surface fits to curve (being commonly referred to as bus) by a plurality of discrete points and converts curved surface to again, and in fact it is free form surface.With reference to Fig. 6 a, 6b and 6c, this exiting surface 1a is symmetrical about Y-axis.Centered by initial point, choosing X-axis and the plane of Z axis formation and the intersecting lens of exiting surface 1a is line of demarcation, this exiting surface is divided into big or small two parts by described line of demarcation, the positive direction surface area of Y-axis is large and the curvature variation is comparatively slow, the surface area of Y-axis negative direction is less and the curvature variation is very fast, the purpose of doing like this is to allow light be partial to the positive axis of Y-axis, i.e. directive direction of traffic (referring to Figure 11) as far as possible.
As shown in Figure 6 b, the cross section of Y-direction, after the light of unspecified angle incides the incidence surface of LED lens 6, enter the angle of light of LED lens 6 less than incident ray, and namely this incidence surface plays the effect of towards the positive direction side of Y-axis, slightly dispersing to light.
For exiting surface, when light marches to exiting surface because light is to be passed to air by medium, thereby the angle of emergence is greater than incidence angle (this incidence angle is the angle of emergence of incidence surface), the area that the curvature that is positioned at central shaft left side (Y-axis positive direction side) changes curved surface slowly greatly, so most light are all to change the refraction of curved surface slowly through curvature to turn to the positive direction lateral deviation of Y-axis, and slightly disperse.
Note, guarantee that the central shaft (chain-dotted line) of indent incidence surface overlaps with the optical axis (chain-dotted line) of light emitting diode.
In Fig. 6, incidence surface is to be formed by connecting along the directional smoothing of X-axis by different quadratic surface 2a, the 2b of two amount of curvature, with reference to Fig. 6 d and 6e, this incidence surface is symmetrical about X-axis, be in the curved surface 2b curvature of X-axis positive direction less than the curved surface 2a that is in the X-axis negative direction, the purpose of doing like this is to allow light be partial to the negative semiaxis of X-axis as far as possible, be light downward bias, directive road surface (referring to Figure 11).
As shown in Figure 7a, the cross section of directions X, when the light of unspecified angle incided the incidence surface of LED lens 6, because light is to be passed to medium by air, the angle of emergence was less than incidence angle.On incidence surface, the curved surface that curvature is less is positioned at X-axis positive direction side, the curved surface (part of irising out in Fig. 7 a) of the overwhelming majority on quadratic surface, on it, normal direction of any point is pointed to upper left side (X-axis positive direction side), thus most light will be to the negative direction lateral deviation folding of X-axis.
For exiting surface, because light is to be passed to air by medium, the angle of emergence is greater than incidence angle (this incidence angle is the angle of emergence of incidence surface), the more multidirectional X-axis negative direction of the most emergent raies lateral deviation in central shaft this moment left side turns, the more multidirectional X-axis positive direction of the most emergent raies lateral deviation on central shaft right side turns, and the emergent ray deflection on central shaft right side is more than the emergent ray in central shaft left side; Generally, the emergent ray through LED lens 6 is played the effect of slightly gathering to central shaft.
Because this light fixture is applicable to low level setting height(from bottom) below 1.5 meters, thereby the design of LED lens 6 should make the deflection angle of emergent ray should be not excessive according to demand, otherwise possibly can't shine whole road surface.Based on above characteristics, described LED lens 6 are integrated the light that is sent by LED light source 5 by the mode of refraction, total reflection, redistribute the light path of emergent ray.Make most light follow the outgoing of car direction, simultaneously, glazed thread must, to road surface side deflection, be beneficial to more light is projected road surface (referring to Figure 11) in vertical road plane.
Can, with the suitable angles of LED lens 6 rotation, generally make the Y direction of the LED lens 6 of each LED light source unit, with the orientation of the LED light source unit of whole LED light source assembly, one 5～10 angles of spending be arranged according to actual needs.As shown in Figure 8, this angle is regulated according to the mounting distance of light fixture.LED lens 6 and LED reflector 7 are used in conjunction with the emitting light path that provides better, increase the efficiency of light energy utilization on road surface and the vertical and horizontal illumination uniformity on road surface.
Below, reflector 7 is described.As shown in Figure 9, described reflector 7 is arranged on LED lens 6 and is positioned at curved surface one side of the Y-axis negative direction side of LED lens 6 exiting surfaces, and the draw-in groove of the screens of reflector 7 and LED lens 6 closely cooperates and facilitates assembling product.
In order to reduce dazzle and light pollution, the inner surface of reflector 7 (reflecting surface) is quadratic surface or free form surface, the electrodepositable highly reflective material to be to obtain mirror-reflection effect or diffuse effect, if use the higher white plastic of reflectivity its inner surface can not deal with.Its effect be with the light reflection of Y-axis negative direction (the less curved surface of lens exiting surface) to the Y-axis positive direction, this part light will follow the outgoing of car direction, not only reduce dazzle and also greatly improve the utilization ratio of luminous energy.
For the arrangement mode of a plurality of LED light sources unit of Fig. 8, the outer surface of reflector 7 may cause reflection to the light of the LED light source unit outgoing that is arranged in its back, thereby causes the unfavorable factors such as dazzle.In order to reduce or to weaken this kind unfavorable factor, the outer surface of described reflector 7 must be done the processing such as erosion line or frosted to break up the light that shines this outer surface from a rear LED light source unit, but this outer surface there is no fixed profile.Certainly, if the spacing of the LED light source unit of light fixture enough greatly also can not done the processing such as erosion line or frosted.
In addition, referring to Figure 10 a, along the top view of road direction, the light of light fixture outgoing is as far as possible along the direction of traffic irradiation, and the distance of irradiation is near the spacing of two lamps; And importantly can avoid light oppositely to penetrate,, in case shine driver's eyes, produce the unfavorable factors such as dazzle; In addition, referring to Figure 10 b, at vertical road direction, the light of light fixture outgoing can photograph as much as possible to road surface, the distance of this direction irradiation is near the width of road.To the luminous intensity distribution of the actual test of light fixture referring to Figure 11.Described LED light source unit uses in the ordinary course of things in pairs, namely is divided into and is arranged on road left side and right side.Two kinds of LED light source unit (shape of incidence surface is relative) except the incidence surface difference of lens of relatively installing, remainder is all identical, assembles also identical with fixed form.For convenient for assembly, can also modify to LED lens 6 bodies, this structure only needs LED lens 6 are stuck on LED substrate 4, and is easy to operate, greatly improves packaging efficiency.
Above-mentioned explanation illustrates and has described some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, by technology or the knowledge of above-mentioned instruction or association area, change.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, all should be in the protection domain of claims of the present invention.
Claims (2)
1. a LED light fixture that is applied to low position lighting, is characterized in that, comprising: at least one LED light source assembly; Described LED light source assembly also comprises: the LED light source unit that a plurality of arrays that are installed on same LED substrate are arranged; Described LED light source unit, further comprise: be arranged on light source and the lens that are located on described light source on described LED substrate, described lens have incidence surface and the exiting surface for this beam projecting of the indent of the light incident for light source, this exiting surface is a free form surface, it has a line of demarcation this free form surface is divided into big or small both sides, the curvature of the larger N-Side surf of area changes to be delayed in the less N-Side surf of area, with this, makes light through the curved sides deflection of described lens to area maximum on this exiting surface; Described LED light source be placed in the LED light fixture lamp body stretching structure and be close to lamp body by the LED substrate;
This incidence surface comprises at least two quadratic surfaces, and described quadratic surface is arranged side by side, and described quadric curvature is along described quadric orientation monotone variation, with this, makes light through the curved sides deflection of described lens to curvature minimum on this incidence surface; Wherein, the central shaft of this incidence surface passes this light source position; Described line of demarcation is one to be parallel to quadric orientation on this incidence surface and to comprise the projection of plane on this exiting surface of described central shaft; There is an angle in the trend direction that on this exiting surface, the curvature of free form surface changes quadric orientation on the projection on horizontal plane and this incidence surface.
2. a LED light fixture that is applied to low position lighting, is characterized in that, comprising: at least one LED light source assembly; Described LED light source assembly also comprises: the LED light source unit that a plurality of arrays that are installed on same LED substrate are arranged; Described LED light source unit, further comprise: be arranged on light source and the lens that are located on described light source on described LED substrate, described lens have incidence surface and the exiting surface for this beam projecting of the indent of the light incident for light source, this exiting surface is a free form surface, it has a line of demarcation this free form surface is divided into big or small both sides, the curvature of the larger N-Side surf of area changes to be delayed in the less N-Side surf of area, with this, makes light through the curved sides deflection of described lens to area maximum on this exiting surface; Described LED light source be placed in the LED light fixture lamp body stretching structure and be close to lamp body by the LED substrate;
This incidence surface comprises a plurality of shapes free form surface of exiting surface as described, described free form surface is arranged side by side, the trend that changes along the curvature of each free form surface of orientation of described free form surface is consistent, makes light change a mild lateral deviation through described lens to the curvature of each free curved surface on this incidence surface with this and turns; Wherein, the central shaft of this incidence surface passes this light source position; Described line of demarcation is the trend direction that changes of a curvature that is parallel to free form surface on this incidence surface and the projection of plane on this exiting surface that comprises described central shaft; There is an angle in the trend direction that the curvature of trend direction free form surface on the projection on horizontal plane and this incidence surface that on this exiting surface, the curvature of free form surface changes changes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106233365A CN102109132B (en) | 2010-12-30 | 2010-12-30 | LED (Light Emitting Diode) light source assembly applied to low-order lighting and LED lamp applied to low-order lighting |
| PCT/CN2011/084624 WO2012089077A1 (en) | 2010-12-30 | 2011-12-26 | Led light source assembly and led light fixture applied to low-location lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106233365A CN102109132B (en) | 2010-12-30 | 2010-12-30 | LED (Light Emitting Diode) light source assembly applied to low-order lighting and LED lamp applied to low-order lighting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102109132A CN102109132A (en) | 2011-06-29 |
| CN102109132B true CN102109132B (en) | 2013-11-13 |
Family
ID=44173367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106233365A Active CN102109132B (en) | 2010-12-30 | 2010-12-30 | LED (Light Emitting Diode) light source assembly applied to low-order lighting and LED lamp applied to low-order lighting |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102109132B (en) |
| WO (1) | WO2012089077A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109132B (en) * | 2010-12-30 | 2013-11-13 | 北京朗波尔光电股份有限公司 | LED (Light Emitting Diode) light source assembly applied to low-order lighting and LED lamp applied to low-order lighting |
| JP5706536B2 (en) * | 2011-09-03 | 2015-04-22 | ニュー テクノロジー バンク コーリミテッド | LED lighting fixtures |
| CN103574384A (en) * | 2012-07-19 | 2014-02-12 | 苏州曼斯雷德光电有限公司 | Light-emitting diode (LED) ramp lamp |
| CN103277717B (en) * | 2013-06-03 | 2016-06-01 | 苏州荣文库柏光电科技有限公司 | A kind of projection light |
| EP2924345B1 (en) * | 2014-03-28 | 2018-07-18 | Swarco Futurit Verkehrssignalsysteme Ges.m.b.H. | Lighting devices with asymmetrical light distribution |
| CN103982802B (en) * | 2014-05-28 | 2017-06-06 | 深圳市九洲光电科技有限公司 | A kind of LED blackboard lightses |
| CN104235726A (en) * | 2014-08-28 | 2014-12-24 | 马瑞利汽车零部件(芜湖)有限公司 | LED (light emitting diode) automobile signal lamp |
| CN105140154B (en) * | 2015-06-12 | 2018-12-11 | 深圳市晶导电子有限公司 | The annular light source and die Bonder of die Bonder |
| CN106547975B (en) * | 2016-11-05 | 2020-05-15 | 华东交通大学 | LED array-based diffuse reflection free-form surface off-axis design method |
| JP6671510B2 (en) * | 2016-12-22 | 2020-03-25 | 三菱電機株式会社 | Vehicle headlights |
| IT201700088812A1 (en) * | 2017-08-01 | 2019-02-01 | Targett S R L | LIGHTING SYSTEM AND ROAD DELINEATION |
| CN107816667B (en) * | 2017-11-28 | 2024-04-16 | 赛尔富电子有限公司 | Light distribution system for refrigerator |
| CN109812740A (en) * | 2019-04-01 | 2019-05-28 | 傅子瑜 | A kind of LEDy street lamp device orienting optically focused |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486837Y (en) * | 2001-06-08 | 2002-04-17 | 华锦光电科技股份有限公司 | Signal lamp of light-emitting diode |
| CN201284938Y (en) * | 2008-10-22 | 2009-08-05 | 黄国进 | LED module group with light-collection structure, and lamp employing the same |
| CN101604353A (en) * | 2008-06-11 | 2009-12-16 | 空中客车英国有限公司 | The method for designing of airfoil assembly |
| CN201652174U (en) * | 2010-04-23 | 2010-11-24 | 北京朗波尔光电股份有限公司 | Secondary lens, lamp cover and illuminating lamp |
| CN201892149U (en) * | 2010-07-30 | 2011-07-06 | 北京朗波尔光电股份有限公司 | Lens and luminous component with the same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6837605B2 (en) * | 2001-11-28 | 2005-01-04 | Osram Opto Semiconductors Gmbh | Led illumination system |
| DE10158395B4 (en) * | 2001-11-28 | 2011-07-07 | OSRAM Opto Semiconductors GmbH, 93055 | LED lighting system |
| TW201007082A (en) * | 2008-08-08 | 2010-02-16 | Genius Electronic Optical Co Ltd | Optical lens of polarizing illumination |
| KR100936430B1 (en) * | 2009-07-20 | 2010-01-12 | 주식회사 태경컨설턴트 | Bar type lens having dissymmetry section and lighting module for device of lighting street using the same |
| CN202118667U (en) * | 2010-12-30 | 2012-01-18 | 北京朗波尔光电股份有限公司 | LED light fixture used for low position lighting |
| CN102109132B (en) * | 2010-12-30 | 2013-11-13 | 北京朗波尔光电股份有限公司 | LED (Light Emitting Diode) light source assembly applied to low-order lighting and LED lamp applied to low-order lighting |
-
2010
- 2010-12-30 CN CN2010106233365A patent/CN102109132B/en active Active
-
2011
- 2011-12-26 WO PCT/CN2011/084624 patent/WO2012089077A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2486837Y (en) * | 2001-06-08 | 2002-04-17 | 华锦光电科技股份有限公司 | Signal lamp of light-emitting diode |
| CN101604353A (en) * | 2008-06-11 | 2009-12-16 | 空中客车英国有限公司 | The method for designing of airfoil assembly |
| CN201284938Y (en) * | 2008-10-22 | 2009-08-05 | 黄国进 | LED module group with light-collection structure, and lamp employing the same |
| CN201652174U (en) * | 2010-04-23 | 2010-11-24 | 北京朗波尔光电股份有限公司 | Secondary lens, lamp cover and illuminating lamp |
| CN201892149U (en) * | 2010-07-30 | 2011-07-06 | 北京朗波尔光电股份有限公司 | Lens and luminous component with the same |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-209288A 2003.07.25 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012089077A1 (en) | 2012-07-05 |
| CN102109132A (en) | 2011-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102109132B (en) | LED (Light Emitting Diode) light source assembly applied to low-order lighting and LED lamp applied to low-order lighting | |
| CN202118667U (en) | LED light fixture used for low position lighting | |
| CN101871621B (en) | Reflecting shade and lamp using same | |
| CN102072460B (en) | Lens for increasing spacing height ratio and improving illumination uniformity of light emitting diode (LED) lamp | |
| CN204962442U (en) | Reflective anti -dazzle LED washes pinup | |
| CN106855207A (en) | A kind of LED blackboard lightses of high brightness and high evenness | |
| CN202382109U (en) | LED (light emitting diode) corrugated lamp | |
| CN201892149U (en) | Lens and luminous component with the same | |
| CN203082719U (en) | Optical structure of LED (Light Emitting Diode) wall washing lamp with reflection cup | |
| CN103017084B (en) | Secondary optical lens for light emitting diode (LED) wide-angle bulb lamp and LED wide-angle bulb lamp | |
| CN203656635U (en) | LED spotlight with light uniformizing function | |
| CN105757576A (en) | Work light | |
| CN205606386U (en) | Light -emitting diode (LED) car lamp | |
| CN101478022A (en) | LED with special light | |
| CN206176077U (en) | Flat optic fibre leaded light lighting device | |
| CN101230962A (en) | Plane dentate high-power LED road lamp | |
| CN202109399U (en) | Lens for improving the spacing height ratio and the illumination uniformity of LED light fixture | |
| CN206892528U (en) | A kind of light compensating lamp for road monitoring | |
| CN104296006A (en) | Concealed illumination device | |
| CN208606108U (en) | A kind of matrix LED distance light optical system | |
| ITVI20100214A1 (en) | OPTICAL SYSTEM FOR THE HOMOGENEOUS DIFFUSION OF LIGHT EMITTED BY LIGHT SOURCES | |
| CN102620181B (en) | LED (Light-Emitting Diode) light-distribution light source, manufacturing method thereof and solid lens adopted by LED light-distribution light source | |
| CN111336473A (en) | Optical lens, display unit, lamp strip and display screen | |
| CN209622524U (en) | A kind of LED landscape lamp | |
| CN108844013A (en) | A kind of headlamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170822 Address after: 510000, building 203, building B, 188 Kaiyuan Road, Whampoa District, Guangdong, Guangzhou Patentee after: NEWTECH LIGHTING TECHNOLOGY CO.,LTD. Address before: 100176, No. two, No. 28, Hai Lu, Beijing economic and Technological Development Zone, Beijing Patentee before: Beijing Lampearl Photoelectric Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An LED lamp applied to low lighting Effective date of registration: 20230117 Granted publication date: 20131113 Pledgee: Agricultural Bank of China Limited Guangzhou Development Zone Branch Pledgor: NEWTECH LIGHTING TECHNOLOGY CO.,LTD. Registration number: Y2023980031519 |