CN101929645A - Floodlight ceiling lamp - Google Patents
Floodlight ceiling lamp Download PDFInfo
- Publication number
- CN101929645A CN101929645A CN2009101082756A CN200910108275A CN101929645A CN 101929645 A CN101929645 A CN 101929645A CN 2009101082756 A CN2009101082756 A CN 2009101082756A CN 200910108275 A CN200910108275 A CN 200910108275A CN 101929645 A CN101929645 A CN 101929645A
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- reflector
- floodlight
- ceiling lamp
- lamp
- angle
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Abstract
The invention relates to a floodlight ceiling lamp, comprising a reflector and a point light source fixed on the reflector, wherein the reflection surface of the reflector is a conical curved surface. The reflector is arranged coaxially to the point light source, and the half-angle of projection of the reflector is 47-57 degrees. Compared with the ceiling lamp adopting an elliptic or hyperbolic reflector in the prior art, the ceiling lamp in the invention can realize uniform light distribution and eliminate halos and dazzles so that lights can be more uniformly projected to the plane of illumination.
Description
Technical field
The present invention relates to a kind of light fixture, more particularly, relate to a kind of floodlight ceiling lamp.
Background technology
Along with the continuous development of light emitting diode (LED), its range of application also more and more widely.These LED not only are applied in the spotlight lamps such as torch, head lamp, and are applied to the floodlighting occasion, for example lamp affixed to the ceiling etc.
As depicted in figs. 1 and 2, lamp affixed to the ceiling of the prior art generally includes: LED 1 and be the reflector 2 of bus with ellipse or hyperbola, the bright wave mode luminous light source of 2 pairs of standards of the reflector of this shape is carried out luminous intensity distribution effect preferably.Fig. 3 shows the distribution curve flux of the bright wave mode luminous light source of standard.
But LED is that approximate bright wave mode is luminous mostly, is example with the naked light source of CREE1W/3W LED, and its distribution curve flux as shown in Figure 4.When adopting ellipse or hyperbola to be the reflector 2 of bus, easily bright ring or Crape ring appear just, and cause the face to be illuminated uneven illumination even, make people's visual experience fatigue.It is the luminous LED of the bright wave mode of reflector 2 pairing approximation of bus hot spot figure and the light intensity curve when carrying out luminous intensity distribution that Fig. 5 and Fig. 6 show with ellipse or hyperbola respectively.There is the tangible ring of light to produce uneven illumination by finding out among the figure.
If floodlight ceiling lamp does not use reflector, only use the naked light illumination of LED, though can realize even illumination, can produce dazzle, human eye is produced injury, be not suitable for the indoor ceiling lamp tool.
Summary of the invention
The technical problem to be solved in the present invention is, at the relatively poor defective of the reflector uniformity of illuminance of lamp affixed to the ceiling in the prior art, provides a kind of floodlight ceiling lamp, and its reflector can make that illumination is more even.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of floodlight ceiling lamp, comprise reflector and be fixed on the interior spot light of described reflector, wherein, the reflecting surface of described reflector is a conical surface.
According to floodlight ceiling lamp of the present invention, described reflector and the coaxial setting of described spot light.
According to floodlight ceiling lamp of the present invention, the half-angle of projection of described reflector is 47 to 57 degree.
According to floodlight ceiling lamp of the present invention, the coning angle of described reflector is 52 degree.
According to floodlight ceiling lamp of the present invention, the described reflector axial height of delaying is described spot light to 2 to 5 times of along the same axis height.
According to floodlight ceiling lamp of the present invention, described spot light is a light emitting diode.
Implement floodlight ceiling lamp of the present invention, have following beneficial effect: with respect to prior art, the reflector of ceiling lighting of the present invention adopts conical surface shape reflecting surface, can realize luminous intensity distribution comparatively uniformly, weakened the ring of light and dazzle, light is comparatively evenly projected on the plane of illumination.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of a kind of lamp affixed to the ceiling of the prior art, and it has adopted with the ellipse is the reflector of bus;
Fig. 2 is the structural representation of another kind of lamp affixed to the ceiling of the prior art, and it has adopted with the hyperbola is the reflector of bus;
Fig. 3 is the distribution curve flux of the bright wave mode luminous light source of standard;
Fig. 4 is the distribution curve flux of approximate bright wave mode luminous light source;
Fig. 5 is to be the luminous LED of the bright wave mode of reflector pairing approximation of the bus hot spot figure when carrying out luminous intensity distribution with ellipse or hyperbola;
Fig. 6 is to be the luminous LED of the bright wave mode of reflector pairing approximation of the bus light intensity curve when carrying out luminous intensity distribution with ellipse or hyperbola;
Fig. 7 is the structural representation of floodlight ceiling lamp among the present invention;
Fig. 8 is that the half-angle of projection of the reflector of the floodlight ceiling lamp among the present invention is 52 distribution curve flux figure when spending;
Fig. 9 is that the half-angle of projection of the reflector of the floodlight ceiling lamp among the present invention is 47 distribution curve flux figure when spending;
Figure 10 is that the half-angle of projection of the reflector of the floodlight ceiling lamp among the present invention is 57 distribution curve flux figure when spending;
Figure 11 is that the half-angle of projection of the reflector of the floodlight ceiling lamp among the present invention is 42 distribution curve flux figure when spending;
Figure 12 is that the half-angle of projection of the reflector of the floodlight ceiling lamp among the present invention is 62 distribution curve flux figure when spending.
The specific embodiment
As shown in Figure 7, floodlight ceiling lamp 100 of the present invention comprises reflector 101 and is fixed on spot light 102 in the reflector 101, and wherein the reflecting surface 103 of reflector 101 is a conical surface, and spot light 102 is a light emitting diode.Spot light 102 and reflector 101 coaxial settings, the outgoing after reflector 101 reflections of its light that sends.
This floodlight ceiling lamp 100 is applied to indoor, is 2-2.5 rice from the height of plane of illumination, and its lamp shielding angle is α.According to the designing requirement of light fixture, when α too small (for example, less than 30 degree), the too much direct outgoing of light reflection causes dazzle, and human eye is produced injury.And when α is excessive, can produce the uneven phenomenon of light.Therefore, the lamp shielding angle α of floodlight ceiling lamp 100 is 33 to 43 degree among the present invention, preferably 38 degree; With preferred 47 to 57 degree of its surplus mutually half-angle of projection β, preferably 52 degree.
The size of reflector 101 is according to the big or small equal proportion convergent-divergent of spot light 102.Reflector 101 along its axial height preferably spot light 102 along 2 to 5 times of the height of same axial.This floodlight ceiling lamp 100 can be provided with a plurality of reflectors 101 and spot light 102.
As shown in Figure 8, according to simulated test, when the half-angle of projection β of reflector 101 is 52 degree, is that lamp shielding angle α is 38 when spending that luminous intensity distribution is even, and can realize 90 degree luminous intensity distributions, is comparatively ideal luminous intensity distribution situation.
As shown in Figure 9, when the half-angle of projection β of reflector 101 is 47 degree, is that lamp shielding angle α is 43 when spending, still can realize luminous intensity distribution comparatively uniformly.
As shown in figure 10, when the half-angle of projection β of reflector 101 is 57 degree, is that lamp shielding angle α is 33 when spending, still can realize luminous intensity distribution comparatively uniformly, but this moment, central light strength reduced.
When the lamp shielding angle α of floodlight ceiling lamp 100 spends greater than 43,, can make that luminous intensity distribution is inhomogeneous because lamp shielding angle α becomes big.As shown in figure 11, when the half-angle of projection β of reflector 101 is 42 degree, is that lamp shielding angle α is 48 when spending, from distribution curve flux, the situation of luminous intensity distribution inequality has appearred.
When the lamp shielding angle α of floodlight ceiling lamp 100 spends less than 33,, can produce dazzle because lamp shielding angle α diminishes.As shown in figure 12, when the half-angle of projection β of reflector 101 is 62 degree, is that lamp shielding angle α is 28 when spending,, there is dazzle to endanger though luminous intensity distribution is even.
As seen from the above description, with respect to the ceiling lighting of available technology adopting ellipse or hyperbola reflector, ceiling lighting of the present invention can be realized luminous intensity distribution comparatively uniformly, has weakened the ring of light and dazzle, and light is comparatively evenly projected on the plane of illumination.
Claims (6)
1. a floodlight ceiling lamp comprises reflector and is fixed on the interior spot light of described reflector, it is characterized in that the reflecting surface of described reflector is a conical surface.
2. floodlight ceiling lamp according to claim 1 is characterized in that, described reflector and the coaxial setting of described spot light.
3. floodlight ceiling lamp according to claim 2 is characterized in that, the half-angle of projection of described reflector is 47 to 57 degree.
4. floodlight ceiling lamp according to claim 3 is characterized in that, the coning angle of described reflector is 52 degree.
5. floodlight ceiling lamp according to claim 2 is characterized in that, described reflector is described spot light to 2 to 5 times of along the same axis height along its axial height.
6. floodlight ceiling lamp according to claim 1 is characterized in that described spot light is a light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101082756A CN101929645A (en) | 2009-06-24 | 2009-06-24 | Floodlight ceiling lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101082756A CN101929645A (en) | 2009-06-24 | 2009-06-24 | Floodlight ceiling lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101929645A true CN101929645A (en) | 2010-12-29 |
Family
ID=43368975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101082756A Pending CN101929645A (en) | 2009-06-24 | 2009-06-24 | Floodlight ceiling lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101929645A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363405A (en) * | 2012-03-26 | 2013-10-23 | 东芝照明技术株式会社 | Luminaire |
| GB2502397A (en) * | 2012-05-25 | 2013-11-27 | Jcc Lighting Products Ltd | Light fitting |
| CN104406127A (en) * | 2014-11-14 | 2015-03-11 | 深圳科宏健半导体照明有限公司 | Light distribution reflector for LED (light-emitting diode) light source and LED lamp |
-
2009
- 2009-06-24 CN CN2009101082756A patent/CN101929645A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363405A (en) * | 2012-03-26 | 2013-10-23 | 东芝照明技术株式会社 | Luminaire |
| GB2502397A (en) * | 2012-05-25 | 2013-11-27 | Jcc Lighting Products Ltd | Light fitting |
| CN104406127A (en) * | 2014-11-14 | 2015-03-11 | 深圳科宏健半导体照明有限公司 | Light distribution reflector for LED (light-emitting diode) light source and LED lamp |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101229 |