CN100453893C - Energy-saving electro-optic source - Google Patents
Energy-saving electro-optic source Download PDFInfo
- Publication number
- CN100453893C CN100453893C CNB200510042841XA CN200510042841A CN100453893C CN 100453893 C CN100453893 C CN 100453893C CN B200510042841X A CNB200510042841X A CN B200510042841XA CN 200510042841 A CN200510042841 A CN 200510042841A CN 100453893 C CN100453893 C CN 100453893C
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- light source
- light
- cylindrical lens
- reflection prism
- rotary reflection
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- Planar Illumination Modules (AREA)
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Abstract
The present invention relates to an energy-saving electric light source. The rear side of a light source is provided with a paraboloid or conical-surface reflector, collimator tubes and a cylindrical lens are arranged in the light path of the light source in sequence, a rotary reflection prism is arranged in the light path of the cylindrical lens, and incident rays of the rotary reflection prism are aligned with any bottom side of the rotary reflection prism. Since the light source of the present invention forms collimated light which is irradiated to the collimator tubes after reflected through the paraboloid or conical-surface reflector, the collimator tubes convert the collimated light with a large-diameter light spot into collimated light with a small-diameter, which is irradiated on the cylindrical lens; the light rays are scattered through the cylindrical lens to form beams which are single-direction emitted in a single direction; the beams are reflected to form a scanning light band through the rotary reflection prism arranged between the focal distance and the twice focal distances of the cylindrical lens, so that the low-power electric light source can achieve the lighting brightness which is equivalent to the existing large-power electric light source so as to greatly save energy.
Description
Technical field
The present invention relates to a kind of electric light source, particularly a kind of electric light source.
Background technology
At present, the electric consumption on lighting of countries in the world generally accounts for 10 to percent 20 of generating total amount, is also increasing in this ratio of developing country.City illumination often needs to satisfy the demand of enough brightness, and therefore only city illumination must expend a large amount of electric energy.The capacity usage ratio of present electric light source is not high, particularly the illumination power consumption of avenue is big especially, and in order to improve luminous efficiency, the scientists and engineers has carried out a lot of research work, studied the various light fixtures of different principle, Chinese patent 99114509.7 and 99229726.5 have wherein been arranged.Three set of lenses and two rotation reflex reflectors in these two patents, have been adopted, complex structure, it is some about the identical reflective surface in angle of inclination, axle center that particularly its beam divergence has been used the border distribution, difficulty is all compared in such device processing and debugging, because the vibration of foozle and motor, the scattering of light beam forms the light of several light rather than coincidence easily, thereby influences final illuminating effect.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, provide a kind of simple in structure, and can make low power electric light source reach the energy-saving electric light source of the equal brightness of illumination of large power, electrically light source.
For achieving the above object, the technical solution used in the present invention is: the rear side at light source is provided with parabola or conical reflector, in the light path of light source, be disposed with parallel light tube and cylindrical lens, in the emitting light path of cylindrical lens, also be provided with the rotary reflection prism, and the incident ray of rotary reflection prism is mutually concordant with arbitrary base of rotary reflection prism.
Rotary reflection prism of the present invention is installed between the one times of focal length and two focus length of cylindrical lens; The rotary reflection prism is five or six reflecting prisms and can be around the rotation of the axle center of rotary reflection prism.
Shine parallel light tube owing to form directional light after light source process parabola of the present invention or the conical reflecting mirroring, parallel light tube shines cylindrical lens with the directional light that the directional light of major diameter hot spot changes the minor diameter hot spot into, light forms folk prescription to the light beam of dispersing through the cylindrical lens scattering, utilizes the rotary reflection prism that is installed between one times of focal length of cylindrical lens and the two focus length beam reflection also to be formed the light belt of scanning again.The present invention can make low power electric light source can reach and the equal brightness of illumination of existing large power, electrically light source, thereby has saved energy greatly.
Description of drawings
Fig. 1 is the structure principle chart of vertical direction of the present invention;
Fig. 2 is the structure principle chart of horizontal direction of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are described in further detail.
Referring to Fig. 1,2, the present invention includes light source 2, rear side at light source 2 is provided with parabola or conical reflector 1, in the light path of light source 2, be disposed with parallel light tube 3 and cylindrical lens 4, between one times of focal length of cylindrical lens 4 light paths and two focus length, also be provided with five or six reflecting prisms 5 that can rotate, and the incident ray of rotary reflection prism 5 is mutually concordant with arbitrary base of rotary reflection prism 5 around the axle center.
Light source 2 of the present invention shines parallel light tube 3 through parabola or conical reflector 1 formation directional light, parallel light tube 3 shines the directional light that the directional light of large spot changes small light spot on the cylindrical lens 4, light is scattering into unidirectional divergent beams through cylindrical lens 4, as can be seen from Figure 2, light is only dispersed behind cylindrical lens 4 in the horizontal direction, after the light level diffusion, promptly realized the width of illumination zone among the present invention, the height difference that lighting device hangs, the width of roadway of its irradiation also can change thereupon.From Fig. 1, see, light is not dispersed in vertical direction, the rotary reflection prism 5 of light through being installed between 4 one times of focal lengths of cylindrical lens and the two focus length that comes out from cylindrical lens 4 reflects to form effective lighting area, should make the hot spot of the parallel rays that parallel light tube 3 comes out the smaller the better in order to improve illuminating effect.Utilize the present invention that low power electric light source is reached and have the equal brightness of illumination of large power, electrically light source now, thereby saved energy greatly, reached energy-efficient purpose.
The present invention can make low power electric light source can reach and the equal brightness of illumination of existing large power, electrically light source, realizes the efficient illumination of light on a large scale.Existing lighting device power consumption of comprehensive replacement of city illumination can reduce city illumination electricity consumption at night significantly, if only will reduce 50%.
Claims (3)
1, a kind of electric light source, it is characterized in that: the rear side at light source [2] is provided with parabola or conical reflector [1], in the light path of light source [2], be disposed with parallel light tube [3] and cylindrical lens [4], in the emitting light path of cylindrical lens [4], also be provided with rotary reflection prism [5], and the incident ray of rotary reflection prism [5] is mutually concordant with arbitrary base of rotary reflection prism [5].
2, electric light source according to claim 1 is characterized in that: said rotary reflection prism [5] is installed between the one times of focal length and two focus length of cylindrical lens [4].
3, electric light source according to claim 1 is characterized in that: said rotary reflection prism [5] is five or six reflecting prisms and can be around the rotation of the axle center of rotary reflection prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510042841XA CN100453893C (en) | 2005-06-23 | 2005-06-23 | Energy-saving electro-optic source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510042841XA CN100453893C (en) | 2005-06-23 | 2005-06-23 | Energy-saving electro-optic source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1710324A CN1710324A (en) | 2005-12-21 |
| CN100453893C true CN100453893C (en) | 2009-01-21 |
Family
ID=35706603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510042841XA Expired - Fee Related CN100453893C (en) | 2005-06-23 | 2005-06-23 | Energy-saving electro-optic source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100453893C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5015050A (en) * | 1988-12-22 | 1991-05-14 | Ricoh Company, Ltd. | Fθ lens system in optical scanner |
| US20040047053A1 (en) * | 2000-03-27 | 2004-03-11 | Wavien, Inc. | Coupling of light from a light source to a target using dual ellipsoidal reflectors |
| US20050063079A1 (en) * | 2003-07-16 | 2005-03-24 | Mackinnon Nicholas B. | Apparatus and methods relating to concentration and shaping of illumination |
-
2005
- 2005-06-23 CN CNB200510042841XA patent/CN100453893C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5015050A (en) * | 1988-12-22 | 1991-05-14 | Ricoh Company, Ltd. | Fθ lens system in optical scanner |
| US20040047053A1 (en) * | 2000-03-27 | 2004-03-11 | Wavien, Inc. | Coupling of light from a light source to a target using dual ellipsoidal reflectors |
| US20050063079A1 (en) * | 2003-07-16 | 2005-03-24 | Mackinnon Nicholas B. | Apparatus and methods relating to concentration and shaping of illumination |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1710324A (en) | 2005-12-21 |
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|---|---|---|---|
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20110623 |