CN102444863A - Reflector and lamp provided with same - Google Patents
Reflector and lamp provided with same Download PDFInfo
- Publication number
- CN102444863A CN102444863A CN2010105151669A CN201010515166A CN102444863A CN 102444863 A CN102444863 A CN 102444863A CN 2010105151669 A CN2010105151669 A CN 2010105151669A CN 201010515166 A CN201010515166 A CN 201010515166A CN 102444863 A CN102444863 A CN 102444863A
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- CN
- China
- Prior art keywords
- reflector
- reflecting surface
- light
- light source
- reflecting
- 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.)
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Classifications
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- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/09—Optical design with a combination of different curvatures
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a reflector for a light source. The reflector comprises at least one reflector unit (1), and is characterized in that: every reflector unit (1) comprises a bottom surface (5) for accommodating the light source (4), and a first reflecting body (2) and a second reflecting body (3) which are positioned on two opposite side faces of the light source (4) and extend along a light emitting direction; a first reflecting surface (A) is formed on one side of the first reflecting body (2) which faces the light source; a second reflecting surface (B) is formed on one side of the second reflecting body (3) which faces the light source; and the first and second reflecting surfaces (A, B) are asymmetric surfaces capable of generating an elliptical light distribution pattern. According to the reflector disclosed by the invention, the elliptical light distribution pattern of which the center is deviated from an optical axis can be realized in a reflecting way, so that high light efficiency, high light distribution uniformity and a good light chopping effect are achieved; and meanwhile, the reflector has the advantages of convenience for installing, low cost, small size and the like.
Description
Technical field
The light fixture that the present invention relates to a kind of reflector and have this reflector.
Background technology
In the street lighting in modern times, in some cases, the misalignment that needs the ellipse-shaped light distribution patterns is in optical axis.In the lighting device of prior art, in order to realize deviating from the ellipse-shaped light distribution patterns of optical axis, the extra lens that install additional carry out secondary light and distribute usually.Realize the above-mentioned light distribution patterns that deviates from optical axis through lens being designed to non-rotation symmetry.The shortcoming of this scheme is: the first, owing to need install lens additional, therefore, will relative complex and cause cost higher in the assembling of lighting device.In addition, it is also bigger that lighting device is installed shared space.The second, because the material of lens is PMMA or PC, therefore, the life-span of these plastics relatively can be low.The 3rd, because the refraction action of these lens has produced bigger light loss consumption.
Summary of the invention
The objective of the invention is to; A kind of non-rotational symmetric reflector that is used for light source is provided; Substitute realization misalignment of the prior art in the secondary lens of the oval-shaped smooth distribution patterns of optical axis through this reflector, realize that through reflection way misalignment is in the oval-shaped smooth distribution patterns of optical axis.Since need not to adopt secondary lens, therefore, the corresponding shortcoming of bringing by secondary lens in the prior art that just do not exist.
The invention provides a kind of reflector that is used for light source; Comprise at least one reflector element; It is characterized in that each reflector element comprises: be used to settle light source the bottom surface, be positioned at said light source both sides penetrate first reflector and second reflector that direction is extended along light; Side towards said light source of said first reflector is formed with first reflecting surface; Side towards light source of said second reflector is formed with second reflecting surface, and the face that said first and second reflectings surface are asymmetric design each other also can produce oval-shaped smooth distribution patterns.Asymmetric design through first reflecting surface and second reflecting surface realizes above-mentioned smooth distribution patterns with the reflection mode.
Design of the present invention is; Abandoned using the rotation symmetrical reflector to add the design of secondary lens; But consideration realizes the light distribution patterns of misalignment optical axis directly through first reflecting surface that can produce oval-shaped smooth distribution patterns and second reflecting surface of asymmetric design are provided with the reflection mode.The light that comes out through light emitted directly penetrates through first reflecting surface and second reflecting surface, can minimize the loss of light, improves the efficient of light.Than prior art, the present invention has realized required light pattern and and then has realized optical efficiency preferably with reflection way under the situation that the secondary light that need not lens is distributed.
It is pointed out that first reflecting surface and second reflecting surface length and width, profile considerations such as design the light distribution patterns that will reach and obtain according to The Calculation of Optical Path according to principles such as best light efficiencies.For example first reflecting surface will design to such an extent that make the probability of secondary reflection reduce as far as possible, realizes higher light efficiency.
Preferably, said first and second reflectings surface are made up of curved surface or planarea.Replacedly, first and second reflectings surface also can be made up of SPL.To be first reflecting surface penetrate direction along light to another interchangeable preferred version is made up of interior concaved circular cambered surface peace face successively, said second reflecting surface along light penetrate direction successively by the plane with outside convex arc surface constitute, thereby can realize higher light efficiency.The plane of said first reflecting surface and interior concaved circular cambered surface are 1.2-1.4 at the length ratio that light penetrates on the direction; Be preferably 1.28; And the radius of concaved circular cambered surface is 15mm-20mm in said; Be preferably 18.18mm, the plane of said second reflecting surface and the outer convex arc surface length ratio on light ejaculation direction be 0.6-0.8 be preferably 0.7 and said outside the radius of convex arc surface be 25mm-35mm, be preferably 29.76mm.
According to an improvement project of the present invention, each reflector element also comprises two the 3rd reflectings surface that extend towards the light source direction of central authorities from said second reflecting surface respectively.The 3rd reflecting surface can or be an arc surface for the plane, is preferably concave arc shape.The 3rd reflecting surface can improve photodistributed uniformity and increase the beam angle of the long axis direction of oval-shaped smooth distribution patterns.At the 3rd reflecting surface is under the situation of concave arc shape, and the radian of the concave arc of said the 3rd reflecting surface considers that the beam angle and the uniformity of light of the long axis direction of oval-shaped smooth distribution patterns confirm.Preferably, said two the 3rd reflectings surface are mutually symmetrical and design and be focused at together.The radius of said the 3rd reflecting surface is 8-12mm, is preferably 10.1mm.
According to another improvement project of the present invention, each reflector element also comprises two the 4th reflectings surface of the other both sides that are positioned at said light source, and each the 4th reflecting surface is designed to the plane and becomes the angle of inclination to extend with the bottom surface.In other words, on two opposite sides in four sides around the light source first reflecting surface and second reflecting surface are set, and are provided for cutting the 4th reflecting surface of light on two other opposite side.According to the relevant regulations of country, on some highway section, need the light chopping light fixture, influence in reasonable and safe scope to guarantee the dazzle that roads light produces.Therefore, design the 4th reflecting surface and can satisfy above-mentioned relevant regulations.The angle of inclination of the 4th reflecting surface also can have influence on light type and uniformity of light, and preferably this angle of inclination is 65 °-70 °, is preferably 67 °.The height with respect to light source center of the 4th reflecting surface is designed to make that the angle with respect to the horizontal plane of the line between the summit of said light source center and said the 4th reflecting surface is 10 °-20 ° in addition, wherein is preferably 15 °.
According to another improvement project of the present invention, said reflector element is made into integration.Thereby greatly reduced manufacturing cost, simplified process complexity.
Can realize that misalignment is in the oval-shaped smooth distribution patterns of optical axis through reflection way according to non-rotational symmetric reflector of the present invention and light fixture with this reflector; Light efficiency is high, the light distributing homogeneity is good and it is good to cut light effect, has advantages such as convenient installation, with low cost and size be less simultaneously.
Description of drawings
Followingly exemplarily explain according to preferred implementation of the present invention with reference to accompanying drawing.Shown in the figure:
Fig. 1 shows the elevational cross-sectional view according to a reflector element of reflector of the present invention;
Fig. 2 shows the vertical view cutaway drawing according to a reflector element of reflector of the present invention;
Fig. 3 shows the stereogram according to a reflector element of reflector of the present invention;
Fig. 4 a, 4b, 4c show first, second reflecting curved surface of the reflector element of reflector according to the present invention and the enlarged drawing of the 3rd reflecting curved surface;
Fig. 5 shows the sketch map according to reflector of the present invention that is arranged into by a plurality of reflector element arrays.
Fig. 6 shows the light distribution map according to reflector of the present invention.
The specific embodiment
Fig. 1 shows the elevational cross-sectional view according to a reflector element 1 of reflector of the present invention.This reflector element 1 comprises: bottom surface 5, perforate 6 is set on the bottom surface 5, and be used to settle light source 4 (as shown in Figure 5); The left and right sides of perforate 6 is respectively arranged with along light and penetrates first reflector 2 and second reflector 3 that direction is extended.These two reflectors 2,3 are parallel to the direction setting of optical axis substantially.Side towards light source of first reflector 2 is formed with the first reflecting surface A, and the side towards light source of second reflector 3 is formed with the second reflecting surface B.Two reflecting surface A, being designed to of B is asymmetrical.In the embodiment according to Fig. 1, the first reflecting surface A and second reflecting surface constitute by SPL.In the embodiment according to Fig. 4 a, this first reflecting surface A penetrates direction along light and comprises indent arc section A1 and straightway A2 successively (referring to Fig. 4 a).The second reflecting surface B comprises straightway B1 and evagination arc section B2.The plane A2 of the said first reflecting surface A and interior concaved circular cambered surface A1 are 1.2-1.4 at the length ratio that light penetrates on the direction, be preferably 1.28 and said in the radius of concaved circular cambered surface A1 be 15mm-20mm, be preferably 18.18mm.The plane B1 of the said second reflecting surface B and the outer convex arc surface B2 length ratio on light ejaculation direction is 0.6-0.8, be preferably 0.7 and the radius of said outer convex arc surface B2 be 25mm-35mm, be preferably 29.76mm.
First, second reflecting surface A, the designing requirement of B is: should produce oval-shaped smooth distribution patterns and also can reduce as best one can at reflecting surface A, the secondary reflection that B is last is to realize maximum light efficiency.Simultaneously, both sides have extended to central source also that (rear side 7 only is shown this figure) is provided with the 4th reflecting surface D (specifically referring to Fig. 2 and Fig. 4 c) that is used for section light on two the 3rd reflecting surface C (specifically referring to Fig. 4) and the both sides, front and back in perforate 6 before and after the second reflecting surface B.The angle of inclination of the 4th reflecting surface D also can have influence on light type and uniformity of light, and preferably this angle of inclination is 65 °-70 °, more preferably 67 °.The height of the 4th reflecting surface (with respect to light source center) is designed to make that the horizontal sextant angle of line is 10 °-20 ° between the summit of said light source center and said the 4th reflecting surface in addition, wherein is preferably 15 °
Fig. 2 shows the vertical view cutaway drawing according to a reflector element 1 of reflector of the present invention.Fig. 3 shows the stereogram according to a reflector element 1 of reflector of the present invention.In conjunction with Fig. 2,3 can find out, extend two the 3rd reflecting surface C to central source 4 directions with circular-arc tendency respectively in the position near front side and rear side from the second reflecting surface B.These two the 3rd reflectings surface finally are being focused at together.The 3rd reflecting surface C can be designed for the beam angle that improves photodistributed uniformity and increase the long axis direction of ellipse-shaped light distribution patterns.The radian of the 3rd reflecting surface C requires to confirm according to the beam angle scope and the uniformity of light of preset long axis direction.Certain the 3rd reflecting surface also can be for plane but not circular-arc.
Fig. 5 shows the reflector sketch map of being arranged and being formed by a plurality of reflector element arrays.Reflector according to the present invention can be implemented in the beam angle (referring to Fig. 6) of 40 ° of 150 ° of * on the ellipse-shaped light distribution patterns; The efficient of light can up to 91% and its section light effect can realize 70 ° for klm; 80 ° be klm, 90 ° be klm.
Reference number
1 reflector element
2 first reflectors
3 second reflectors
4 light sources
5 bottom surfaces
6 perforates
7 rear sides
A first reflecting surface
B second reflecting surface
C the 3rd reflecting surface
D the 4th reflecting surface
Claims (14)
1. reflector that is used for light source; Comprise at least one reflector element (1); It is characterized in that: each reflector element (1) comprising: be used to settle light source (4) bottom surface (5), be positioned at said light source (4) both sides penetrate first reflector (2) and second reflector (3) that direction is extended along light; Side towards said light source of said first reflector (2) is formed with first reflecting surface (A); Side towards light source of said second reflector (3) is formed with second reflecting surface (B), said first and second reflectings surface (A, B) be asymmetric design each other face and can produce oval-shaped smooth distribution patterns.
2. reflector according to claim 1 is characterized in that: (A B) is made up of curved surface said first and second reflectings surface.
3. reflector according to claim 1 is characterized in that: (A B) is made up of SPL said first and second reflectings surface.
4. reflector according to claim 1; It is characterized in that: said first reflecting surface (A) penetrates direction along light and is made up of with plane (A2) interior concaved circular cambered surface (A1) successively, said second reflecting surface (B) along light penetrate direction successively by plane (B1) and outside convex arc surface (B2) formation.
5. reflector according to claim 4; It is characterized in that: the plane (A2) of said first reflecting surface (A) and interior concaved circular cambered surface (A1) light penetrate length ratio on the direction be 1.2-1.4 and said in the radius of concaved circular cambered surface (A1) be 15mm-20mm, the plane (B1) of said second reflecting surface (B) and outer convex arc surface (B2) length ratio on light ejaculation direction be 0.6-0.8 and said outside the radius of convex arc surface (B2) be 25mm-35mm.
6. reflector according to claim 1 is characterized in that: each reflector element (1) also comprises two respectively from three reflecting surface (C) of said second reflecting surface (B) towards light source (4) extension of central authorities.
7. reflector according to claim 6 is characterized in that: said the 3rd reflecting surface (C) is the concave arc shape.
8. reflector according to claim 7 is characterized in that: the radius of said the 3rd reflecting surface (C) is 8-12mm.
9. reflector according to claim 7 is characterized in that: said two the 3rd reflectings surface (C) are mutually symmetrical and design and be focused at together.
10. reflector according to claim 1; It is characterized in that: each reflector element (1) also comprises two the 4th reflectings surface (D) of the other both sides that are positioned at said light source (4), and each the 4th reflecting surface (D) is designed to the plane and becomes the angle of inclination to extend with bottom surface (5).
11. reflector according to claim 10 is characterized in that: the said angle of inclination of said the 4th reflecting surface (D) is 65 °-70 °.
12. reflector according to claim 10 is characterized in that: said the 4th reflecting surface (D) is designed to make that with respect to the height of light source center the angle with respect to the horizontal plane of the line between the summit of said light source center and said the 4th reflecting surface is 10 °-20 °.
13. reflector according to claim 1 is characterized in that: said reflector element (1) is made into integration.
14. a light fixture comprises according to each described reflector among the claim 1-13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010515166.9A CN102444863B (en) | 2010-10-11 | 2010-10-11 | Reflector and lamp provided with same |
| PCT/EP2011/067616 WO2012049104A2 (en) | 2010-10-11 | 2011-10-10 | Reflector and luminaire comprising the reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010515166.9A CN102444863B (en) | 2010-10-11 | 2010-10-11 | Reflector and lamp provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102444863A true CN102444863A (en) | 2012-05-09 |
| CN102444863B CN102444863B (en) | 2015-07-15 |
Family
ID=44907811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010515166.9A Expired - Fee Related CN102444863B (en) | 2010-10-11 | 2010-10-11 | Reflector and lamp provided with same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102444863B (en) |
| WO (1) | WO2012049104A2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739226A (en) * | 1949-06-03 | 1956-03-20 | Gen Electric | Luminaire |
| EP0198811B1 (en) * | 1985-04-19 | 1991-07-17 | Jac. Jacobsen Industrier A/S | An arrangement for asymmetric lighting |
| CN2531239Y (en) * | 2002-05-31 | 2003-01-15 | 余姚市燎原灯具有限公司 | Reflector for road lights |
| CN101556026A (en) * | 2009-05-20 | 2009-10-14 | 华南理工大学 | Reflective cup of LED street lamp |
| EP2230445A1 (en) * | 2009-03-17 | 2010-09-22 | Thorn Europhane S.A. | Lighting unit and luminaire for lighting pedestrian crossings |
-
2010
- 2010-10-11 CN CN201010515166.9A patent/CN102444863B/en not_active Expired - Fee Related
-
2011
- 2011-10-10 WO PCT/EP2011/067616 patent/WO2012049104A2/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739226A (en) * | 1949-06-03 | 1956-03-20 | Gen Electric | Luminaire |
| EP0198811B1 (en) * | 1985-04-19 | 1991-07-17 | Jac. Jacobsen Industrier A/S | An arrangement for asymmetric lighting |
| CN2531239Y (en) * | 2002-05-31 | 2003-01-15 | 余姚市燎原灯具有限公司 | Reflector for road lights |
| EP2230445A1 (en) * | 2009-03-17 | 2010-09-22 | Thorn Europhane S.A. | Lighting unit and luminaire for lighting pedestrian crossings |
| CN101556026A (en) * | 2009-05-20 | 2009-10-14 | 华南理工大学 | Reflective cup of LED street lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012049104A2 (en) | 2012-04-19 |
| WO2012049104A3 (en) | 2012-08-30 |
| CN102444863B (en) | 2015-07-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Munich, Germany Applicant after: Osram Co., Ltd. Address before: Munich, Germany Applicant before: Osram GMBH |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: OSRAM GMBH TO: GERMANY OSRAM STOCK COMPANY LIMITED |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20171011 |