Floodlight ceiling lamp

A ceiling lamp and floodlight technology, applied in the field of lamps and lanterns, can solve the problems of poor illuminance uniformity of reflectors, and achieve the effects of weakening halo and glare, uniform light distribution, and uniform projection

Inactive Publication Date: 2010-12-29
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a floodlight ceiling lamp whose reflector can make the illuminance more uniform

Method used

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  • Floodlight ceiling lamp
  • Floodlight ceiling lamp
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Examples

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Embodiment Construction

[0027] Such as Figure 7 As shown, the floodlight 100 of the present invention includes a reflector 101 and a point light source 102 fixed in the reflector 101, wherein the reflecting surface 103 of the reflector 101 is a conical surface, and the point light source 102 is a light emitting diode. The point light source 102 is arranged coaxially with the reflector 101 , and the light emitted by it is reflected by the reflector 101 and then exits.

[0028] The floodlight 100 is applied indoors, the height from the irradiated surface is 2-2.5 meters, and its shading angle is α. According to the design requirements of the lamp, when α is too small (for example, less than 30 degrees), too much light will go out directly without reflection, causing glare and causing damage to human eyes. And when α is too large, the phenomenon of uneven light will occur. Therefore, the shading angle α of the floodlight 100 in the present invention is 33 to 43 degrees, preferably 38 degrees; the com...

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PUM

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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 [0001] The invention relates to a lamp, more specifically, to a floodlight ceiling lamp. Background technique [0002] With the continuous development of light-emitting diodes (LEDs), their application range is also becoming wider and wider. These LEDs are not only used in spotlights such as flashlights and headlamps, but also in flood lighting applications such as ceiling lamps. [0003] Such as figure 1 with figure 2 As shown, the ceiling lamp in the prior art generally includes: LED 1, and a reflector 2 with an ellipse or a hyperbola as a generatrix. The reflector 2 of this shape has a better light distribution for a standard Langwave-type light source. Effect. image 3 The light distribution curve of a light source emitting light of the standard Lambert type is shown. [0004] However, most of the LEDs emit light similar to the Lang wave type. Take the CREE1W / 3W LED bare light source as an example, the light distribution curve is as follows Figure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/04F21V7/04F21Y101/02
Inventor 周明杰刘廷明
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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