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Reflector and lamp provided with same

A technology of reflectors and reflective surfaces, which is applied in the direction of reflectors, components of lighting devices, lighting devices, etc., can solve the problems of large space occupied by lighting devices, low plastic life, and complicated assembly, so as to improve the efficiency of light, Low cost, good light efficiency effect

Inactive Publication Date: 2012-05-09
OSRAM GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this solution are as follows: First, because a lens needs to be added, the assembly of the lighting device will be relatively complicated and the cost will be relatively high.
In addition, the space occupied by the lighting installation is relatively large
Second, since the material of the lens is PMMA or PC, the lifespan of these plastics will be relatively low
Third, due to the refraction of these lenses, there is a large loss of light

Method used

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  • Reflector and lamp provided with same
  • Reflector and lamp provided with same
  • Reflector and lamp provided with same

Examples

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Embodiment Construction

[0019] figure 1 A front sectional view of one reflector unit 1 of the reflector according to the invention is shown. The reflector unit 1 includes: a bottom surface 5, and an opening 6 is arranged on the bottom surface 5 for arranging a light source 4 (such as Figure 5 shown); the left and right sides of the opening 6 are respectively provided with a first reflector 2 and a second reflector 3 extending along the light emitting direction. The two reflectors 2, 3 are arranged substantially parallel to the direction of the optical axis. A first reflective surface A is formed on the side of the first reflector 2 facing the light source, and a second reflective surface B is formed on the side of the second reflector 3 facing the light source. The design of the two reflecting surfaces A, B is asymmetric. in accordance with figure 1 In the embodiment, both the first reflective surface A and the second reflective surface are composed of spline curves. in accordance with Figure...

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Abstract

The invention relates to a reflector for a light source. The reflector comprises at least one reflector unit (1), and is characterized in that: every reflector unit (1) comprises a bottom surface (5) for accommodating the light source (4), and a first reflecting body (2) and a second reflecting body (3) which are positioned on two opposite side faces of the light source (4) and extend along a light emitting direction; a first reflecting surface (A) is formed on one side of the first reflecting body (2) which faces the light source; a second reflecting surface (B) is formed on one side of the second reflecting body (3) which faces the light source; and the first and second reflecting surfaces (A, B) are asymmetric surfaces capable of generating an elliptical light distribution pattern. According to the reflector disclosed by the invention, the elliptical light distribution pattern of which the center is deviated from an optical axis can be realized in a reflecting way, so that high light efficiency, high light distribution uniformity and a good light chopping effect are achieved; and meanwhile, the reflector has the advantages of convenience for installing, low cost, small size and the like.

Description

technical field [0001] The invention relates to a reflector and a lamp with the reflector. Background technique [0002] In modern street lighting, in some cases it is desired that the center of the elliptical light distribution pattern is offset from the optical axis. In the lighting device in the prior art, in order to realize an elliptical light distribution pattern deviated from the optical axis, an additional lens is usually added for secondary light distribution. The above-mentioned light distribution pattern deviated from the optical axis is realized by designing the lens to be non-rotationally symmetric. The disadvantages of this solution are as follows: first, since a lens needs to be added, the assembly of the illuminating device will be relatively complicated and the cost will be relatively high. In addition, the space occupied by the installation of the lighting device is relatively large. Second, since the material of the lens is PMMA or PC, the lifespan of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/09
CPCF21V7/09F21V7/0083
Inventor 李爱爱袁海平罗亚斌杨灿邦
Owner OSRAM GMBH
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