CN101655212B - Anti-dazzle lamp - Google Patents
Anti-dazzle lamp Download PDFInfo
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- CN101655212B CN101655212B CN200810141947.9A CN200810141947A CN101655212B CN 101655212 B CN101655212 B CN 101655212B CN 200810141947 A CN200810141947 A CN 200810141947A CN 101655212 B CN101655212 B CN 101655212B
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- fritter
- reflective surface
- light
- reflector
- light source
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Abstract
The invention relates to an anti-dazzle lamp, which comprises a reflector and an LED light source, wherein the LED light source and the reflector are arranged in opposite directions; the light reflecting surface of the reflector is an arc surface; the arc surface is divided into a plurality of small pieces of light reflecting surfaces; light emitted by the LED light source is inversely projected onto the reflector reversely; and after being reflected by the small pieces of the light reflecting surfaces, the light is projected, so light-emitting area is enlarged, centralized light rays are disperses, the light rays is more uniform, and damages to human eyes are avoided.
Description
Technical field
The present invention relates to luminaire, more particularly, relate to a kind of anti-dazzle lamp.
Background technology
Existing light fixture adopts the light reflection surface of large-area whole smooth minute surface as reflector substantially, during use, generally all is that light source is arranged on reflector bottom, the direct directive of some light outside that can cause light source to send like this; Therefore, the illumination of light fixture is concentrated especially in the centre, and serious non-uniform phenomenon will appear in the distribution of light intensity, the more important thing is, if light source power is too big, such as, the high light light source when central ray of its emission shines directly into human eye, will have the danger of blinding.
Summary of the invention
The technical problem to be solved in the present invention is, at the light fixture uneven illumination of prior art and the defective of dazzle, provides a kind of anti-dazzle lamp.
The technical solution adopted for the present invention to solve the technical problems is, a kind of anti-dazzle lamp is provided, and comprises reflector, and led light source, reflector and led light source are provided with in opposite directions, and the light reflection surface of described reflector is a cambered surface, and described cambered surface branch is set as some fritter reflective surfaces.
In anti-dazzle lamp of the present invention, the number of described fritter reflective surface is more than or equal to 4.
In anti-dazzle lamp of the present invention, described fritter reflective surface is the non-spherical surface to the cambered surface convex.
In anti-dazzle lamp of the present invention, the size of described fritter reflective surface is 10mm * 7mm.
In anti-dazzle lamp of the present invention, the Gaussian curvature of described fritter reflective surface is according to the position at this fritter reflective surface place and the scope design that will shine.
In anti-dazzle lamp of the present invention, the Gaussian curvature of described fritter reflective surface is: 1 * 10
-7～1 * 10
-2
In anti-dazzle lamp of the present invention, the Gaussian curvature of described fritter reflective surface is: 6.6 * 10
-6～9.5 * 10
-4
In anti-dazzle lamp of the present invention, the maximum Gaussian curvature of described fritter reflective surface and minimal Gaussian curvature respectively with the fritter reflective surface from the increase of the distance at the center of light reflection surface and reduce gradually.
In anti-dazzle lamp of the present invention, in the described fritter reflective surface in the maximum Gaussian curvature of the fritter reflective surface of light reflection surface central area and minimal Gaussian curvature respectively greater than maximum Gaussian curvature and minimal Gaussian curvature at the fritter reflective surface of light reflection surface fringe region.
In anti-dazzle lamp of the present invention, the focal point settings of described reflector reflector axially on.
Implement anti-dazzle lamp of the present invention, has following beneficial effect: because led light source and reflector are provided with in opposite directions, and the light reflection surface branch of reflector is set as some fritter reflective surfaces, the reverse reflector that shines of the light that led light source sends, after the reflection of fritter reflective surface, throw away, increased light-emitting area, disperseed the light of concentrating, make light more even, avoid hurting people's eyes.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the schematic perspective view of anti-dazzle lamp preferred embodiment of the present invention;
Fig. 2 is the light path synoptic diagram that anti-dazzle lamp of the present invention is preferably executed example;
Fig. 3 is that the curvature of anti-dazzle lamp preferred embodiment of the present invention is calculated synoptic diagram;
Fig. 4 is the surface of intensity distribution that anti-dazzle lamp of the present invention is preferably executed example.
Embodiment
As shown in Figure 1, in the preferred embodiment of anti-dazzle lamp of the present invention, anti-dazzle lamp comprises led light source 1 and reflector 2, and led light source 1 is provided with in opposite directions with reflector 2, described reflector 2 one end openings, and opening direction is the light projecting direction.The light that led light source 1 sends directly shines to reflector 2, because the radiation direction that led light source sends is strong, its lighting angle has certain scope, straw hat type white LED light source for example, half light intensity angle are 60 degree, therefore, reflector 2 can be controlled the light of whole led light sources 1, the minimum lamp shielding angle of whole light fixture is zero, for direct glare limit grade III level, is the maximum limit grade.Reflector 2 inside surfaces are arranged to cambered surface, as roughly becoming the cambered surface of dome shape, form light reflection surface 20.Light reflection surface was set as some fritter reflective surfaces 201 in 20 minutes; Each fritter reflective surface 201 is the non-spherical surface to the cambered surface convex, and design is in order to make illumination even, to increase irradiating angle and irradiated area, also having satisfied the anti-dazzle function of light fixture simultaneously like this.
In the preferred embodiment of anti-dazzle lamp of the present invention, light is sent by led light source 1 and arrives fritter light reflective surface 201, be radiated at fritter reflective surface 201 leftmost light, reflex to the rightmost of forming hot spot on the receiver, be radiated at fritter reflective surface 201 rightmost light, reflex to the Far Left of forming hot spot on the receiver; Be radiated at fritter reflective surface 201 light topmost, reflex on the receiver and form hot spot bottom, be radiated at fritter reflective surface 201 light bottom, reflex to the top of forming hot spot on the receiver; Be radiated at the light of fritter reflective surface 201 peaks, reflex to the center of forming hot spot on the receiver, by that analogy, each fritter reflective surface 201 is all independently formed a complete spot pattern, finally adds up, and guarantees the evenly whole of hot spot.Fig. 2 shows the light path synoptic diagram of the preferred embodiment of the present invention, the light 101,102 that sends by led light source 1 be radiated at respectively fritter reflective surface 201 on the light reflection surface 20 bottom and topmost, after fritter reflective surface 201 reflection, become the glazed thread 104 of hot spot that this fritter reflective surface 201 forms respectively and descend light 103 most.
In the preferred embodiment of anti-dazzle lamp of the present invention, because each fritter reflective surface 201 is in the position of light reflection surface 20 difference, in order to allow the light of led light source 1 emission reflex to the place that need shine, the curvature that needs each fritter reflective surface 201 of design, the design process of the curvature of each fritter reflective surface 201 is: the first step calculates the curvature of a point on the fritter reflective surface 201; In second step, calculate unidirectional one curvature of arranging point; The 3rd step calculated an adjacent curvature of arranging point, formed a fritter reflective surface 201 with a winding displacement.Herein, be the computation process that example is introduced curvature with a point.As shown in Figure 3, the P point is the position at led light source 1 place, and S is the point on the fritter reflective surface 201, A is the axis angle of incident ray and light reflection surface 20, L is the distance that the P point is ordered to S, and B is the angle of the axis of reflection ray and light reflection surface 20, and C is the angle between incident light and the reflected light.In design process, after the position of led light source 1 and each fritter reflective surface 201 has been determined, after the beam projecting angle B is also set, P, S, A, L, B have just become known quantity, so be easy to just determine angle C, just can determine to pass the tangent line that this S is ordered, thereby determine the curvature that S is ordered.
The number of fritter reflective surface 201 is more than or equal to 4, and the fritter reflective surface 201 more than 64 just can reach extraordinary luminous intensity distribution uniformity coefficient generally speaking.In the preferred embodiment of anti-dazzle lamp of the present invention, the number of fritter reflective surface is 64, and fritter reflective surface 201 is of a size of 10mm * 7mm, and its Gaussian curvature is: 1 * 10
-7～1 * 10-2, reasonable selection is that the Gaussian curvature of fritter reflective surface 201 is: 6.6 * 10
-6～9.5 * 10
-4The focus point of overall optical reflecting surface 20 be arranged on its axially on.Along with the distance of fritter reflective surface 201 from the center of light reflection surface 20 increases, the angle that led light source 1 shines the axis of the light of fritter reflective surface 201 and light reflection surface 20 becomes big gradually, so the maximum Gaussian curvature of fritter reflective surface 201 and minimal Gaussian curvature respectively with fritter reflective surface 201 from the increase of the distance at the center of light reflection surface 20 and reduce gradually, in the maximum Gaussian curvature of the fritter reflective surface 201 of light reflection surface 20 central areas and minimal Gaussian curvature respectively greater than maximum Gaussian curvature and minimal Gaussian curvature at the fritter reflective surface 201 of light reflection surface 20 fringe regions.
As shown in Figure 4, in the preferred embodiment of anti-dazzle lamp of the present invention, can find out easily that by the surface of intensity distribution light intensity that anti-dazzle lamp projects is very even, avoid human eye being damaged because light too concentrates.
Because light source and reflector are provided with in opposite directions, and the light reflection surface branch of reflector is set as some fritter reflective surfaces, the reverse reflector that shines of the light that light source sends, after the reflector reflection, throw away, increased light-emitting area, disperse the light of concentrating, made light more even, avoided hurting people's eyes.
Claims (5)
1. an anti-dazzle lamp comprises reflector, and led light source, it is characterized in that,
Described reflector and led light source are provided with in opposite directions, described reflector one end opening, the inside surface of described reflector is arranged to cambered surface and is formed light reflection surface, described opening direction is the light projecting direction, the reverse reflector that shines directly into of light that led light source sends with the lighting angle of certain limit throws away after the reflector reflection; Described reflector is controlled the light of whole led light sources, and the minimum lamp shielding angle of whole light fixture is zero;
Described cambered surface branch is set as some fritter reflective surfaces, and described fritter reflective surface is the non-spherical surface to the cambered surface convex;
The number of described fritter reflective surface is more than or equal to 4;
The Gaussian curvature of described fritter reflective surface is according to the position at this fritter reflective surface place and the scope design that will shine;
The maximum Gaussian curvature of described fritter reflective surface and minimal Gaussian curvature respectively with the fritter reflective surface from the increase of the distance at the center of light reflection surface and reduce gradually; In the described fritter reflective surface in the maximum Gaussian curvature of the fritter reflective surface of light reflection surface central area and minimal Gaussian curvature respectively greater than maximum Gaussian curvature and minimal Gaussian curvature at the fritter reflective surface of light reflection surface fringe region;
The leftmost light that impinges upon the fritter reflective surface that is sent by led light source forms the rightmost of spot pattern after reflection, the rightmost light that impinges upon the fritter reflective surface that is sent by led light source forms the Far Left of spot pattern after reflection, the light of the top that impinges upon the fritter reflective surface of being sent by led light source forms spot pattern bottom after reflection, the light bottom that impinges upon the fritter reflective surface that is sent by led light source forms the top of spot pattern after reflection, the light of the peak that impinges upon the fritter reflective surface that is sent by led light source forms the center of spot pattern after reflection, each fritter reflective surface all independently forms a complete spot pattern thus, finally adds up to guarantee the evenly whole of hot spot.
2. anti-dazzle lamp according to claim 1 is characterized in that, the size of described fritter reflective surface is 10mm * 7mm.
3. anti-dazzle lamp according to claim 1 is characterized in that the Gaussian curvature of described fritter reflective surface is: 1 * 10
-7～1 * 10
-2
4. anti-dazzle lamp according to claim 1 is characterized in that the Gaussian curvature of described fritter reflective surface is: 6.6 * 10
-6～9.5 * 10
-4
5. anti-dazzle lamp according to claim 1 is characterized in that, the focal point settings of described reflector reflector axially on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141947.9A CN101655212B (en) | 2008-08-20 | 2008-08-20 | Anti-dazzle lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810141947.9A CN101655212B (en) | 2008-08-20 | 2008-08-20 | Anti-dazzle lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101655212A CN101655212A (en) | 2010-02-24 |
| CN101655212B true CN101655212B (en) | 2011-11-30 |
Family
ID=41709610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810141947.9A Expired - Fee Related CN101655212B (en) | 2008-08-20 | 2008-08-20 | Anti-dazzle lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101655212B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556029B (en) * | 2018-12-29 | 2023-10-20 | 广东德洛斯照明工业有限公司 | Reflector and lighting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB690857A (en) * | 1951-08-13 | 1953-04-29 | John Gilbert Whiting | Light projector |
| US4034217A (en) * | 1974-06-21 | 1977-07-05 | Roger Louis Dumont | Optical device for lighting apparatus, with a plurality of combined reflectors |
| FR2634003A1 (en) * | 1988-07-05 | 1990-01-12 | Cibie Projecteurs | Motor vehicle headlamp with multizone reflector and method for smoothing such a reflector |
| JP2003157708A (en) * | 2001-11-21 | 2003-05-30 | Daiko Electric Co Ltd | Reflector of illumination apparatus |
| JP2004354493A (en) * | 2003-05-27 | 2004-12-16 | Nec Viewtechnology Ltd | Light source device for projection type display device |
| CN1250899C (en) * | 2001-08-15 | 2006-04-12 | 株式会社小糸制作所 | Lamp for vehicle |
-
2008
- 2008-08-20 CN CN200810141947.9A patent/CN101655212B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB690857A (en) * | 1951-08-13 | 1953-04-29 | John Gilbert Whiting | Light projector |
| US4034217A (en) * | 1974-06-21 | 1977-07-05 | Roger Louis Dumont | Optical device for lighting apparatus, with a plurality of combined reflectors |
| FR2634003A1 (en) * | 1988-07-05 | 1990-01-12 | Cibie Projecteurs | Motor vehicle headlamp with multizone reflector and method for smoothing such a reflector |
| CN1250899C (en) * | 2001-08-15 | 2006-04-12 | 株式会社小糸制作所 | Lamp for vehicle |
| JP2003157708A (en) * | 2001-11-21 | 2003-05-30 | Daiko Electric Co Ltd | Reflector of illumination apparatus |
| JP2004354493A (en) * | 2003-05-27 | 2004-12-16 | Nec Viewtechnology Ltd | Light source device for projection type display device |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2003-157708A 2003.05.30 |
| JP特开2004-354493A 2004.12.16 |
| JP特开平10-199308A 1998.07.31 |
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| Publication number | Publication date |
|---|---|
| CN101655212A (en) | 2010-02-24 |
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Granted publication date: 20111130 Termination date: 20200820 |