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Uniform-illumination reflecting cup

A technology with uniform illuminance and reflective cups, which is applied in the direction of reflectors, lighting devices, lighting and heating equipment, etc., can solve the problems of insufficient luminance, reduced lighting efficiency, and low central illuminance, and achieve uniform light mixing and improved lighting efficiency. Effect

Inactive Publication Date: 2011-05-11
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Abstract
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Problems solved by technology

[0002] At present, the reflective cups used in various downlights on the market are mainly smooth parabolic shapes, and the light sources used are also various. Among them, the light sources of powder-coated metal halide lamps, energy-saving lamps, and electrodeless fluorescent lamps can be regarded as surface Light source, so the light distribution effect is relatively uniform, but the lighting efficiency of the lamp is not high; there is also a transparent metal halide lamp as the light source, because the light-emitting part is relatively small, it can be regarded as a point light source, and its illumination uniformity is poor, and the center The illuminance is relatively low, and it is necessary to change the inner surface treatment of the reflector, such as frosting, orange peel, etc. to achieve a uniform light distribution effect, but after this treatment, the illumination efficiency is reduced and the brightness is not enough

Method used

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Embodiment Construction

[0022] For the convenience of description, in the present invention, the largest opening of the reflective cup is defined as the front end, and the position where the light source is installed is defined as the rear end. All references to directions in the document follow this definition.

[0023] Such as figure 1 , 2 As shown, a reflective cup with uniform illuminance is a cup body formed by at least three plane reflective plates 10 connected in sequence in a circle, and the diameter of the cup body composed of plane reflective plates 10 gradually expands from the rear end surface where the light source is installed. In order to achieve the purpose of uniform light distribution, the cup body includes at least two connected cup walls, and each section of the cup wall is formed by at least three planar reflectors 10 arranged in a circle in sequence, so that the reflector cup is composed of M×N planes Reflectors, where N is the number of sections, and M is the number of plane ...

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Abstract

The invention discloses a uniform-illumination reflecting cup. The reflecting cup is provided with a cup body which is formed by connecting and arranging at least three planar reflecting plates in turn in a circle, wherein the diameter of the front end of the cup body is greater than that of the back end of the cup body. The uniform-illumination reflecting cup provided by the invention has uniform light distribution effect and high lamp illumination efficiency and adapts to point light sources and surface light sources.

Description

technical field [0001] The invention belongs to the technical field of lighting fixtures, and relates to a reflective cup for a lamp, in particular to a reflective cup with uniform illuminance. Background technique [0002] At present, the reflective cups used in various downlights on the market are mainly smooth parabolic shapes, and the light sources used are also various. Among them, the light sources of powder-coated metal halide lamps, energy-saving lamps, and electrodeless fluorescent lamps can be regarded as surface Light source, so the light distribution effect is relatively uniform, but the lighting efficiency of the lamp is not high; there is also a transparent metal halide lamp as the light source, because the light-emitting part is relatively small, it can be regarded as a point light source, and its illumination uniformity is poor, and the center The illuminance is relatively low, and it is necessary to change the inner surface treatment of the reflector, such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/10
Inventor 周明杰李爱爱
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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