CN204268231U - LED spotlight - Google Patents
LED spotlight Download PDFInfo
- Publication number
- CN204268231U CN204268231U CN201420701349.3U CN201420701349U CN204268231U CN 204268231 U CN204268231 U CN 204268231U CN 201420701349 U CN201420701349 U CN 201420701349U CN 204268231 U CN204268231 U CN 204268231U
- Authority
- CN
- China
- Prior art keywords
- reflector
- led
- light source
- led spotlight
- secondary reflectors
- 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.)
- Expired - Fee Related
Links
- 239000011521 glass Substances 0.000 claims description 15
- 239000005337 ground glass Substances 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 abstract description 7
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000011514 reflex Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to a kind of LED spotlight.Traditional LED spotlight, owing to adopting lens or light-guide rod structure, also exists the problems such as light efficiency is low, secondary hot spot, dispersion, poor heat radiation.A kind of LED spotlight of the present utility model, comprising: main reflector, and described main reflector is reflector, and the inner surface of described reflector is reflecting surface; LED light source, is arranged in described reflector; It is characterized in that, described LED spotlight also comprises: secondary reflectors, and its area is greater than described LED light source, and is arranged at the front of described LED light source, and the light sent by described LED light source is to the reflective surface of described reflector.
Description
Technical field
The utility model relates to a kind of shot-light, particularly relates to a kind of using COB (chip on board Chip on Board) as the LED spotlight of light source.
Background technology
Along with the development of LED technology, LED, with efficient and energy-conservation feature, is widely used at lighting field.Fig. 1 schematically shows a kind of structure of traditional LED spotlight, comprises reflector 10, is positioned at LED light source (COB light source) 20 bottom reflector 10, is arranged at the lens 30 in LED light source 20 front and is arranged at the clear glass 40 of reflector 10 the rim of a bowl.In the LED spotlight structure that another kind is traditional, also useful lamp guide replaces lens 30.Light is directed to the inner surface of reflector 10 by the lens 30 in its front of light process that LED light source 20 produces or lamp guide, by the inner surface of reflector 10, light is outwards reflected through glass 40 clearly, thus plays illuminating effect.
But there is following deficiency in this traditional shot-light:
One, light efficiency is low.The light produced due to LED light source 20 has to pass through lens 30 or the lamp guide in its front, and the light conductivity of lens 30 and lamp guide is not good, and the reason such as lens itself, and a part of light also can be reflected and bounce back LED light source itself, result in shot-light light efficiency low.After tested, therefore and cause illumination loss reach 30%-40%.
Two, there is secondary hot spot.Because LED light source 20 belongs to area source, different from traditional halogen light source, can be to all the winds luminous close to 180 degree, therefore the light that the core of LED light source 20 sends cannot be gone out by the internal surface reflection of reflector 10, but directly project illuminated object, around illuminated object, so just produce a circle not by the light of reflector Angle ambiguity, be technically referred to as secondary hot spot.This secondary hot spot is disadvantageous at lighting field.
Three, dispersion is produced.The oculosensory white light of our meat is sent because LED light source 20 illumination mode normally adopts the fluorescent material on blue-light excited surface, but it is mainly made up of blue light and gold-tinted, because the wavelength of two kinds of light is different with frequency, when scioptics or lamp guide, lens or the refractive index of lamp guide to two kinds of light are different, cause and two kinds of light are made a distinction, thus cause the problem producing dispersion.
Four, poor heat radiation.The position of installing due to lens 30 or lamp guide, very near LED light source 20, hinders the heat radiation of LED light source 20.
Utility model content
Therefore, the purpose of this utility model is, provides a kind of structure the more simple LED spotlight that can solve the problem again.
According to above-mentioned purpose, LED spotlight of the present utility model comprises:
Main reflector, described main reflector is reflector, and the inner surface of described reflector is reflecting surface;
LED light source, is arranged in described reflector;
It is characterized in that, described LED spotlight also comprises:
Secondary reflectors, its area is greater than described LED light source, and is arranged at the front of described LED light source, and the light sent by described LED light source is to the reflective surface of described reflector.
In above-mentioned LED spotlight, described secondary reflectors is inverted cone.
In above-mentioned LED spotlight, the basal diameter of the secondary reflectors of described inversed-cone shape is identical with described reflector base diameter.
In above-mentioned LED spotlight, the cone angle scope of the secondary reflectors of described inversed-cone shape is 60-150 degree.
In above-mentioned LED spotlight, the cone angle of the secondary reflectors of described inversed-cone shape is 90 degree.
In above-mentioned LED spotlight, also comprise glass clearly, be arranged at the rim of a bowl of described reflector.
In above-mentioned LED spotlight, described clear glass edge is sheen ground glass.
In above-mentioned LED spotlight, described secondary reflectors is fixed on described reflector by support.
In above-mentioned LED spotlight, described secondary reflectors is fixed on described clear glass by support.
In the utility model, substituted for lens in traditional structure or light-guide rod structure by secondary reflectors, eliminate the immediate cause producing low light efficiency, secondary hot spot and dispersion.The light that LED light source sends by secondary reflectors reflexes to reflector, avoids the light that LED light source sends and outwards penetrates, and it also avoid light efficiency that lens or lamp guide cause simultaneously and reduces and the shortcoming of dispersion.The application of secondary reflectors does not need to change the original design angle of reflector in conventional lamp yet, reduces cost.
Accompanying drawing explanation
Fig. 1 schematically illustrates the structure of traditional LED spotlight;
The structure of the LED spotlight of the present utility model shown in Fig. 2;
Fig. 3 shows the side-looking structure chart of LED spotlight of the present utility model.
Symbol description
10 reflectors
20 LED light sources
30 lens
40 clear glass
1 reflector
2 LED light sources
3 secondary reflectors
31 reflectings surface
32 supports
4 clear glass
41 clear glass edges
Detailed description of the invention
Schematically show the structure of the utility model LED spotlight see Fig. 2 and Fig. 3, Fig. 2, Fig. 3 shows the side-looking structure chart of LED spotlight of the present utility model.As shown in Figures 2 and 3, LED spotlight of the present utility model comprises main reflector and LED light source 2.
In the utility model, main reflector adopts reflector 1 structure, and its main body is bowl-type, has side and the bottom of approximate cone-shape.LED light source 2 is arranged in reflector 1, usually LED light source 2 can be arranged on the bottom of reflector 1.Side and the lower surface of reflector 1 are reflecting surface, can the light that sends of reflex LED light source 2.
LED spotlight of the present utility model also comprises a secondary reflectors 3, and secondary reflectors 3 is arranged on the front of LED light source 2, and secondary reflectors 3 is reflecting surface 31 towards the one side of LED light source 2, and the light that LED light source 2 sends by reflecting surface 31 is to the offside reflection of reflector 1.
In an embodiment of the present utility model, secondary reflectors 3 adopts inverted cone structure, taper seat (namely reflecting) is towards LED light source 2, the cone angle A of cone can determine as required, and the selection of cone angle A is that the light that sent by LED light source 2 is with the side of suitable angle reflection to reflector 1.In the present embodiment, cone angle A can select in the scope of 60-160 degree, and preferably angle is 90 degree.In addition, the basal diameter of the inverted cone of secondary reflectors 3 is greater than the area of LED light source 2 usually, and secondary reflectors 3 of namely falling can block LED light source 2 completely, and the light sent to make LED light source 2 directly can not penetrate LED spotlight.Preferably, the basal diameter of secondary reflectors 3 is identical with the diameter bottom reflector 1.
In another embodiment of LED spotlight of the present utility model, a clear glass 4 can also be comprised, be arranged at the rim of a bowl of reflector 1.4 one effects of clear glass are for fixing secondary reflectors 3, and namely secondary reflectors 3 can be fixed to clearly on glass 4 by support 32.Certainly, secondary reflectors 3 also can adopt alternate manner to fix, such as, be fixed on reflector 1 by support 32.Above-described embodiment is only illustrated as the fixing example of secondary reflectors 3, and the fixed form not tackling secondary reflectors 3 in LED spotlight of the present utility model is limited, any other mode, as long as mode fixing for secondary reflectors 3 all can be fine.
In another embodiment of the present utility model, sheen ground glass can also be adopted at the edge 41 of clear glass 4, block uncontrolled light.
Owing to substituted for lens in traditional structure or light-guide rod structure by secondary reflectors in the utility model, eliminate the immediate cause producing low light efficiency, secondary hot spot and dispersion.The light that LED light source sends by secondary reflectors reflexes to reflector, avoids the light that LED light source sends and outwards penetrates, and it also avoid light efficiency that lens or lamp guide cause simultaneously and reduces and the shortcoming of dispersion.The application of secondary reflectors does not need to change the original design angle of reflector in conventional lamp yet, reduces cost.
Claims (9)
1. a LED spotlight, comprising:
Main reflector, described main reflector is reflector, and the inner surface of described reflector is reflecting surface;
LED light source, is arranged in described reflector;
It is characterized in that, described LED spotlight also comprises:
Secondary reflectors, its area is greater than described LED light source, and is arranged at the front of described LED light source, and the light sent by described LED light source is to the reflective surface of described reflector.
2. LED spotlight as claimed in claim 1, it is characterized in that, described secondary reflectors is inverted cone.
3. LED spotlight as claimed in claim 2, it is characterized in that, the basal diameter of the secondary reflectors of described inversed-cone shape is identical with described reflector base diameter.
4. LED spotlight as claimed in claim 2 or claim 3, it is characterized in that, the cone angle scope of the secondary reflectors of described inversed-cone shape is 60-150 degree.
5. LED spotlight as claimed in claim 4, it is characterized in that, the cone angle of the secondary reflectors of described inversed-cone shape is 90 degree.
6. the LED spotlight as described in claim 1,2 or 3, is characterized in that, also comprises glass clearly, is arranged at the rim of a bowl of described reflector.
7. LED spotlight as claimed in claim 6, it is characterized in that, described clear glass edge is sheen ground glass.
8. LED spotlight as claimed in claim 1, it is characterized in that, described secondary reflectors is fixed on described reflector by support.
9. LED spotlight as claimed in claim 7, it is characterized in that, described secondary reflectors is fixed on described clear glass by support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701349.3U CN204268231U (en) | 2014-11-20 | 2014-11-20 | LED spotlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701349.3U CN204268231U (en) | 2014-11-20 | 2014-11-20 | LED spotlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204268231U true CN204268231U (en) | 2015-04-15 |
Family
ID=52803095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420701349.3U Expired - Fee Related CN204268231U (en) | 2014-11-20 | 2014-11-20 | LED spotlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204268231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838756A (en) * | 2017-10-10 | 2019-06-04 | 上海亚尔光源有限公司 | A kind of automobile-used LED high photosynthetic efficiency headlamp tool |
-
2014
- 2014-11-20 CN CN201420701349.3U patent/CN204268231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838756A (en) * | 2017-10-10 | 2019-06-04 | 上海亚尔光源有限公司 | A kind of automobile-used LED high photosynthetic efficiency headlamp tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 |