CN203517647U - LED long-range floodlight - Google Patents
LED long-range floodlight Download PDFInfo
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- CN203517647U CN203517647U CN201320628481.1U CN201320628481U CN203517647U CN 203517647 U CN203517647 U CN 203517647U CN 201320628481 U CN201320628481 U CN 201320628481U CN 203517647 U CN203517647 U CN 203517647U
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Abstract
The utility model discloses an LED long-range floodlight. The LED long-range floodlight comprises one or more LED light source sets, wherein a secondary light distribution device is arranged at the front end of each LED light source set; each secondary light distribution device is composed of a reflection cup for primary light distribution and a plano-convex lens which is used for secondary light distribution and tightly attached to an outlet of the reflection cup; a flush-end receiving surface of each plano-convex lens is not smaller than the outlet of the corresponding reflection cup; a shell is arranged outside each secondary light distribution device and used for fixing the corresponding secondary light distribution device to the front end of the corresponding LED light source set. According to the LED long-range floodlight, the secondary light distribution technology is adopted, as a result, the directional light yield rate of light sources can reach above 90%, the lighting effect of the LED long-range floodlight is improved, the technical problem that common light distribution is low in brightness and illuminance is effectively solved, and energy conservation and emission reduction are realized.
Description
Technical field
The utility model relates to a kind of floodlight, especially a kind of for the long-range floodlight of LED remote, large area bright dipping illumination place.
Background technology
Conventional LED floodlight is applied at a distance, large area bright dipping field of illumination, and the beam angle of its light fixture is large, goes out light scattering large, and the utilization rate of light is low, cannot solve in practical application, occur seem brightness, technical barrier that actual illumination is low.Tracing it to its cause, is that its luminous intensity distribution technology exists certain problem.
Tradition floodlight is all to adopt once light-distribution, and single reflector is realized luminous intensity distribution, and light can form the diffuse reflection of various directions after reflector, thereby bright dipping meeting forms larger beam angle, as shown in Figure 3.And floodlight is a kind of light fixture of having relatively high expectations to setting the illuminance of beam angle, existing luminous intensity distribution technology make most of light that light source sends after reflective wall of cup diffuse reflection outside the beam angle of setting scattering fallen, cause light fixture side to seem very bright, but be not used effectively in specific region, thereby the utilization rate of light is low, after telecurie irradiation, drop on that in specific region, the luminous flux of unit are is few, illuminance is low.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides the long-range floodlight of a kind of LED, can improve the light utilization efficiency that of light fixture, and effectively solving conventional luminous intensity distribution has brightness, technical barrier that illumination is low.
The utility model solves the technical scheme that its technical problem adopts:
The long-range floodlight of a kind of LED, comprise one or more groups LED light source, it is characterized in that: described every group of LED light source front end is provided with secondary light-distribution device, described secondary light-distribution device is comprised of with planoconvex spotlight with reflector and the secondary light-distribution of being close to reflector outlet setting once light-distribution, the flush end receiving plane of described planoconvex spotlight is not less than described reflector outlet, and described secondary light-distribution device is outside equipped with housing described secondary light-distribution device is fixed on to every group of LED light source front end.
The flush end receiving plane surface of described planoconvex spotlight is coated with anti-reflection film; The thickness of described anti-reflection film makes half optical wavelength of catoptrical optical path difference on two faces of film.
Described reflector inner surface is coated with nanometer reflection coating.
Described housing is water-proof sealing housing, and its sidewall is provided with waterproof vent valve; Described housing is a vertical sleeve, and the lens retaining ring by its end face is locked described planoconvex spotlight on sleeve, and is fixed on around every group of LED light source by the extended retainer ring in bottom.
The beneficial effects of the utility model are: the utility model arranges planoconvex spotlight by reflector being set on LED light source and being close to reflector outlet, realize the secondary light-distribution technology of high light-emitting rate, make the irregular scattering light that LED light source sends be gathered into certain angle through reflector, again from the flush end receiving plane incident of planoconvex spotlight, by convex surface, focus on and project away, form and set big or small rising angle, avoid light scattering outside specific region that light source sends to fall, thereby the utilization rate of light is high.The adjustment of rising angle can be by adjusting the distance (being the height of reflector) of thickness, LED light source and the planoconvex spotlight of planoconvex spotlight, the angle of reflector etc. because usually realizing.Secondary light-distribution device of the present utility model, can make the directed light emission rate of light source reach more than 90%, has improved the light efficiency of light fixture, and efficiently solving conventional luminous intensity distribution has brightness, technical barrier that illumination is low, thereby realizes energy-saving and emission-reduction.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the bright dipping principle schematic of the utility model light distribution structure;
Fig. 3 is the bright dipping principle schematic of prior art light distribution structure.
The specific embodiment
With reference to Fig. 1, the long-range floodlight of a kind of LED, comprise one or more groups LED light source 1, described one or more groups LED light source 1 front end is provided with secondary light-distribution device 2, described secondary light-distribution device 2 comprises the planoconvex spotlight 22 for secondary light-distribution that once light-distribution arranges with reflector 21 and the outlet 211 of being close to reflector 21, the flush end receiving plane 221 of described planoconvex spotlight 22 is not less than described reflector outlet 211, and described secondary light-distribution device 2 is outside equipped with housing 3 described secondary light-distribution device is fixed on to described LED light source 1 front end.For clearer displaying structure of the present utility model, in diagram, provided the embodiment of two groups of LED lamp bodies, wherein one group of lamp body is assembled state, another group lamp body is shown for splitting structure.Two groups of lamp body rear portions are also provided with lamp radiator 8.
The utility model arranges planoconvex spotlight 22 by reflector 21 being set at LED light source 1 front end and being close to reflector outlet, realize the secondary light-distribution technology of high light-emitting rate, make the irregular scattering light that LED light source sends be gathered into certain angle through reflector 21, again from flush end receiving plane 221 incidents of planoconvex spotlight 22, by convex surface, focus on and project away, form and set big or small rising angle, avoid light scattering outside specific region that light source sends to fall, thereby the utilization rate of light is high.With reference to Fig. 2.Single reflector luminous intensity distribution compared to prior art, it has greatly improved and has set the illuminance in rising angle owing to having utilized the focusing principle of planoconvex spotlight that bright dipping is concentrated in effective scope more.Simultaneously, the difference requiring according to field of employment and luminous range, illuminance, the rising angle that can also adjust light fixture reaches best radiation response, and the adjustment of this rising angle can be by adjusting thickness, LED light source 1 and the distance (being the height of reflector 21) of planoconvex spotlight 22 of planoconvex spotlight 22, the tapering of reflector 21 etc. because usually realizing.
Adopting planoconvex spotlight and unconventional biconvex lens is realized secondary light-distribution, be because biconvex lens two sides has symmetric form focus, and focal length is relatively very near, and as easy as rolling off a log imaging, makes rising angle adjustable range little; And convex surface incident there will be reflection of light many, and see through the relative planoconvex spotlight much less of transmitted light of biconvex lens, the utilization rate of light reduces relatively.Planoconvex spotlight is because of asymmetric at focal lengths flat, protruding two faces, the focus of convex surface is nearer than the focus of plane, be not easy imaging, rising angle adjustable range is large, and light is in the incident of flush end receiving plane, and refractive index is high, very few at the reverberation of flush end, almost all anaclasis to penetrate plano-convex saturating, the effective rate of utilization of light is high.
As preferred embodiment of the present utility model, flush end receiving plane 221 surfaces of described planoconvex spotlight 22 are coated with anti-reflection film 6.Due to reverberation and transmitted light and incident light, follow law of conservation of energy, anti-reflection film can make catoptrical intensity reduce, and like this, through the transmission light intensity of planoconvex spotlight, just can increase.In order to obtain best transmission effects, the thickness of described anti-reflection film 6 must make catoptrical path length difference on two faces of film just in time equal optical wavelength half, and now, intensity of reflected light is minimum, and correspondingly, it is maximum that transmitted intensity reaches.
As preferred embodiment of the present utility model, described reflector 21 inner surfaces are coated with nanometer reflection coating, further improve usable reflection and the light utilization efficiency of light.
Adopt the secondary light-distribution device of above-mentioned preferred embodiment, the directed light emission rate of its light source can reach 95%, and for instance, the illuminance that the lamp of 400W is realized is suitable with the lamp of traditional 1000W, and its effect aspect energy-saving and emission-reduction is quite remarkable as seen.
In the present embodiment, described housing 3 is water-proof sealing housing, its sidewall is provided with waterproof vent valve 4, owing to can distributing certain heat in light source works process, and during outdoor application in order to reach waterproof effect, the outer airtight housing 3 that is provided with of light distribution device 2, now, by waterproof vent valve 4, in housing, can realize waterproof, can carry out the exchange of air again, just can not cause forming aqueous vapor under air-proof condition.
In order to realize the connection of simple compactness, the housing 3 of the present embodiment is designed to a vertical sleeve 31, lens retaining ring 32 by its end face is locked described planoconvex spotlight 22 on sleeve 31, and is fixed on around every group of LED light source 1 by the extended retainer ring 33 in bottom.By the design of this housing 3, realized the protection of light source 1 and light distribution device 2 and the front end that light distribution device 2 is fixed on to light source 1 simultaneously.
Between planoconvex spotlight 22 and reflector outlet 211, buffering apron 7 is housed, the rigid contact that can cushion between 22 months reflectors 21 of planoconvex spotlight is on the one hand damaged, and prevents light leak; When light fixture, can also play on the other hand the effect of waterproof sealing during in outdoor application.
Secondary light-distribution device of the present utility model, can improve the directed light emission rate of light source greatly, and the utilization rate of light is high, and efficiently solving conventional luminous intensity distribution has brightness, technical barrier that illumination is low, thereby realizes energy-saving and emission-reduction, can be widely used in various LED floodlights.
Claims (7)
1. the long-range floodlight of LED, comprise one or more groups LED light source (1), it is characterized in that: described every group of LED light source (1) front end is provided with secondary light-distribution device (2), described secondary light-distribution device (2) is by reflector for once light-distribution (21) and be close to the planoconvex spotlight for secondary light-distribution (22) that reflector outlet (211) arranges and form, the flush end receiving plane (221) of described planoconvex spotlight (22) is not less than described reflector outlet (211), described secondary light-distribution device (2) is outside equipped with housing (3) described secondary light-distribution device (2) is fixed on to every group of LED light source (1) front end.
2. the long-range floodlight of LED according to claim 1, is characterized in that: flush end receiving plane (221) surface of described planoconvex spotlight (22) is coated with anti-reflection film (6).
3. the long-range floodlight of LED according to claim 2, is characterized in that: the thickness of described anti-reflection film (6) makes half optical wavelength of catoptrical optical path difference on two faces of film.
4. according to the long-range floodlight of LED described in claim 1 or 2 or 3, it is characterized in that: described reflector (21) inner surface is coated with nanometer reflection coating.
5. the long-range floodlight of LED according to claim 1, is characterized in that: described housing (3) is water-proof sealing housing, and its sidewall is provided with waterproof vent valve (4).
6. the long-range floodlight of LED according to claim 1 or 5, it is characterized in that: described housing (3) is a vertical sleeve (31), lens retaining ring (32) by its end face is locked described planoconvex spotlight (22) at sleeve (31) above, and is fixed on every group of LED light source (1) around by the extended retainer ring in bottom (33).
7. the long-range floodlight of LED according to claim 1, is characterized in that: between described planoconvex spotlight (22) and described reflector outlet (211), buffering apron (7) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628481.1U CN203517647U (en) | 2013-10-11 | 2013-10-11 | LED long-range floodlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628481.1U CN203517647U (en) | 2013-10-11 | 2013-10-11 | LED long-range floodlight |
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| Publication Number | Publication Date |
|---|---|
| CN203517647U true CN203517647U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320628481.1U Expired - Fee Related CN203517647U (en) | 2013-10-11 | 2013-10-11 | LED long-range floodlight |
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| CN (1) | CN203517647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574519A (en) * | 2013-10-11 | 2014-02-12 | 深圳炫庆能源科技有限公司 | LED (light emitting diode) remote omni |
-
2013
- 2013-10-11 CN CN201320628481.1U patent/CN203517647U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574519A (en) * | 2013-10-11 | 2014-02-12 | 深圳炫庆能源科技有限公司 | LED (light emitting diode) remote omni |
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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: 20140402 Termination date: 20161011 |
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| CF01 | Termination of patent right due to non-payment of annual fee |