Light-reflecting device and reflector for street lamps

A technology of light reflection and reflector, which is applied in the direction of reflectors, lighting devices, and components of lighting devices, etc., can solve the problems such as the lack of explanation and design of the shape characteristics of the adjacent area, the increase in the volume of the reflector, and the loss of reflected light scattering. Achieve the effects of avoiding mechanical damage, improving compactness and flatness, and soft light

Inactive Publication Date: 2012-01-04
赵恒谦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The abutment of these original surfaces to the ellipsoidal surface presents a transition with knuckles, which results in a partial loss of reflected light scattering of the reflector, thereby reducing the reflection efficiency
[0004] Chinese patent CN101078495B has explained the problem of light scattering reflected in the adjacent area of ​​the ellipsoid in European patent EP87305285, but in the technical solution provided, there is still no explanation and design for the shape characteristics of the above-mentioned adjacent area, which is only described as small The plane is constituted as convex or concave, and the shape of the facet circumference is polygonal, elongated, spherical or elliptical, and the adjacent area of ​​the convex or concave facets is still the original surface of the reflector
However, the volume of the reflector cannot be infinitely increased due to the limitation of the equipment volume
Under the limited equipment volume, it is also limited to increase the reflective surface by making the shape of the reflective surface into a convex or concave form
When the convexity or concaveness of the reflective surface is too large, the scattering of light will also increase and the reflection efficiency will decrease instead.

Method used

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  • Light-reflecting device and reflector for street lamps
  • Light-reflecting device and reflector for street lamps
  • Light-reflecting device and reflector for street lamps

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Embodiment approach 1

[0039] like figure 1 As shown, the present invention proposes a light reflection device, which includes a reflector made of plane or curved surface, which can reflect the light projected on the reflector to a specific direction and area, and the reflective surface of the reflector is It is formed by vertically and horizontally densely arranged curved surface units without gaps. The base of the curved surface unit is an equilateral hexagon that can be vertically and horizontally densely arranged without gaps. The combination of convex spherical surface 1 and concave curved surface 2 is a tangential combination, and the concave curved surface smoothly transitions to the bottom edge of the curved surface unit. Wherein, the convex spherical surface is formed by intercepting a part of the spherical surface from the base. The height between the vertex and the base of the convex surface of the curved surface unit is 0.5 mm, and the distance between the opposite sides of the equilate...

Embodiment approach 2

[0042]In this embodiment, the reflector is designed as an approximate ellipsoid, and the base of the curved surface unit is an equilateral rhombus quadrilateral that can be arranged vertically and horizontally without gaps. The major axis 3 of the equilateral rhombus quadrilateral is 20 mm, and the minor axis 4 The convex surface 5 is a cross-section of a part of the ellipsoid and the bottom rhombus quadrilateral. The height of the apex and the bottom of the convex surface of the curved surface unit is 0.5 mm. The concave curved surface 6 and concave curved surface 7 located in the adjacent area are different curved surfaces. The measured light reflectance is 95%.

Embodiment approach 3

[0044] The matrix of the reflector is made of a composite material containing nanometer components. Its components are unsaturated resin, low-coarseness additive, nanometer glass fiber or glass powder, filler and flame retardant.

[0045] Among them, 15-20% of unsaturated resin is used to improve mechanical strength, thermal stability and surface quality; 8-12% of low-roughness additive is used to reduce shrinkage, improve high temperature resistance, dyeing ability and surface quality; Nanoscale glass fiber or glass powder 10-20%, the main function is to increase mechanical strength, improve surface quality, improve fluidity, reduce mold wear, reduce cost, increase resistivity, and increase bonding strength with the film system; 40- 60% filler can be chalk or other fillers; increase mechanical strength, improve surface quality and reduce cost; 5-10% flame retardant, its function is to increase high temperature resistance, increase the bonding strength with the reflective film...

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Abstract

The invention discloses a light-reflecting device and a reflector for a street lamp. The light-reflecting device comprises a reflecting body consisting of flat surfaces or curved surfaces, and the reflecting body is used for reflecting light rays (projected to the light-reflecting device) to specific directions and regions; a reflecting surface of the reflecting body is formed by curved surface units which are closely arranged in a zero clearance mode in longitudinal and transverse directions, and the bottom edges of the curved surface units are polygonal edges which can be closely arranged in a zero clearance mode in longitudinal and transverse directions; and the surface of the curved surface unit is composed of a convex curved surface and a concave curved surface, the convex curved surface and the concave curved surface are combined in a tangent mode, and the concave curved surface is smoothly transited to the bottom edge of the curved surface unit.

Description

technical field [0001] The invention relates to a light reflection device, in particular to a reflector for an illuminating device and a street lamp reflector. Background technique [0002] The reflection efficiency of a light reflector or lamp reflector is one of its most important performance indicators. The reflection efficiency of existing reflectors generally can only reach about 60%. Therefore, reflector designers employ various methods to increase the reflective efficiency of the emitter. [0003] European patent EP87305285 describes a reflector whose reflector surface is at least partially covered with facets having an elliptical circumference adjoining the elliptical circumferences of adjacent facets, respectively. These adjacent areas are the original areas without shape processing, ie the original surface of the reflector. The adjoining of these original surfaces and the ellipsoidal surface presents a transition with knuckle angles, which results in the loss of...

Claims

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Application Information

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IPC IPC(8): F21V7/22F21W131/103
CPCY02B20/72
Inventor 赵恒谦
Owner 赵恒谦
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