CN201434334Y

CN201434334Y - Reflecting cup

Info

Publication number: CN201434334Y
Application number: CN200920157654XU
Authority: CN
Inventors: 李中旺
Original assignee: SHENZHEN DEPUWEI TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: SHENZHEN DEPUWEI TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2009-05-27
Filing date: 2009-05-27
Publication date: 2010-03-31
Anticipated expiration: 2019-05-27

Abstract

The utility model relates to a reflecting cup, comprising a cup body and a cup bottom, wherein the cup bottom is provided with a hole through which a light source can extend into the reflecting cup, and the upper part of the reflecting cup is provided with an opening through which light sent out by the light source can be emitted out; the cup body is in the shape of a bowl, and the shape of the inner wall thereof is obtained by the following steps: firstly, defining a first parabola, and secondly, rotating the parabola once around a vertical rotating shaft penetrating through the center of thehole of the cup bottom; and a plurality of reflecting concave surface layers are arranged on the inner wall of the cup body, the quantity of reflecting concave surfaces of each of the reflecting concave surface layers is equivalent to the quantity of the reflecting concave surfaces in other reflecting concave surface layers, each reflecting concave surface layer comprises all the plurality of equiform reflecting concave surfaces which are closely adjacent to one another, and each reflecting concave surface in each reflecting concave surface layer is provided with a structure that the light sent out by the light source can be emitted out from an opening after one reflection.

Description

Reflector

Technical field

The utility model belongs to a kind of illumination articles for use, especially refers to a kind of reflector that is used in the light fixture.

Background technology

Usually, the reflector that is used for lighting has the mirror surface of whole smooth, and this minute surface produces spotlight effect to the light that light fixture sends, and this light brings adverse influence to people's eyes.At present, the reflector with floodlight effect is that blasting treatment is done on the surface within it, makes light source be mapped to process and is done diffuse reflection by the light of the reflective surface of blasting treatment, thereby reach floodlighting.This reflector comes with some shortcomings, and the light energy loss is big, and reflective light efficiency is low; Reflective radiation direction is uncontrollable; The light source utilization rate is low.

The patent No. is that the Chinese utility model patent of ZL200520031706.0 discloses a kind of reflector, this reflector inner surface has continuous protruding sphere or concave spherical surface, and like this, the light that light source sends will be by these sphere institute scatterings, like this, the light of being launched by the opening of reflector is just softer.Yet because the light that sends of light source is in the reflector inscattering, most luminous energy is promptly cancelled out each other in bowl, and therefore, the illuminating lamp light efficiency with such reflector is low.

The utility model content

A purpose of the present utility model is to solve weak point of the prior art, provides a kind of reflector reflection ray controlled, the reflector that the light source utilization rate is high.

For achieving the above object, the utility model a kind of reflector, it comprises a glass body and a cup end, wherein, cup is provided with a perforate end with so that light source stretches into the reflector from this hole, the top of reflector has opening, with so that the light ejaculation that light source sends;

Cup is as bowl-type, and the shape of its inwall is: at first define one first parabola, again the shape that this parabola is rotated a circle and obtains around a vertical rotating shaft of crossing cup perforate center, the end;

On the inwall of cup body, have a plurality of reflecting concave layer, any one reflecting concave layer is all identical with reflecting concave quantity in other reflecting concave layer, and each reflecting concave layer includes mutual next-door neighbour a plurality ofly has an identical shaped reflecting concave, any one reflecting concave all has following structure in each reflecting concave layer: after the rotating shaft of walking around this parabola below end points by one second parabola rotates to an angle, with adjacent same layer reflecting concave, and the adjacent bed reflecting concave intersects and the curved surface of formation, this second parabolical summit is positioned at a glass body, end points is positioned at a glass body inner wall surface, and the second parabolical summit of the formation reflecting concave of each layer is positioned on the concentric circle of arbitrary section with the cup body, the outside side-play amount by the circle of the cup body inwall on the same relatively radial section of the defined concentric circles in the second parabolical summit of each layer equates, described first parabola and the second parabolical focal length are arranged so that the primary event by reflecting concave of the light that light source sent that is arranged in the described opening penetrates from the upper opening of reflector.

Preferably, the described first parabolical focal length is less than the second parabolical focal length.

Preferably, described cup body inwall is made mirror process.

After light source sent light, light was through a plurality of reflecting concave reflections on the reflector inwall, and the light reflected angle is all different, has increased range of exposures, and produces the floodlight effect, and people watch things to have comfortable sensation under this light.

Reflector reflecting surface of the present utility model adopts the design of polylith reflecting surface complex method, all reflectings surface are made mirror process, light source is mapped to through processed light does directive minute surface reflection, thereby reach floodlighting, and have the following advantages: the light energy loss is little, reflective light efficiency height; Reflective radiation direction can be controlled; Light source utilization rate height.

Description of drawings

Fig. 1 is the structural representation of a kind of reflector of the prior art;

Fig. 2 is the stereogram according to the reflector of a kind of specific embodiment of the present utility model;

Fig. 3 is the vertical view according to the reflector of a kind of specific embodiment of the present utility model;

Fig. 4 is the partial sectional view according to the reflector of a kind of specific embodiment of the present utility model;

Fig. 5 is the cutaway view of the design principle of the reflector of elaboration a kind of specific embodiment of the present utility model;

Fig. 6 is the partial enlarged drawing of Fig. 5;

Fig. 7 is the schematic diagram of the operation principle of the reflector of elaboration a kind of specific embodiment of the present utility model.

The specific embodiment

Fig. 2 is the stereogram according to the reflector of a kind of embodiment of the present utility model, and Fig. 3 is its vertical view, and Fig. 4 is its partial sectional view.With reference to Fig. 2,3,4, reflector 100 comprises glass body 10 and the cup end 20, and wherein, the cup end 20 is provided with a perforate 201 usefulness so that light source 200 stretches into the reflector from this hole, and the top of reflector 100 has opening 30, uses so that the light that light source 200 sends penetrates.

With reference to accompanying drawing 5, cup body 10 is a bowl-type, and concretely, the shape of its inwall can be: at first define little focal length first a parabola y ²=2p ₁X revolves the shape that three-sixth turn obtains with this parabola around a vertical rotating shaft B again, and cup body 10 has certain thickness, and the shape of cup body outer wall is not limit, as long as can cooperate the shape of its applied lighting device.

With reference to Fig. 4,5 and 6, on the inwall of cup body 10, have a plurality of reflecting concave layer 101, shown in 101A, 101B, 101C among Fig. 3,4, any one reflecting concave layer is all identical with reflecting concave quantity in other reflecting concave layer, and each reflecting concave layer includes mutual next-door neighbour a plurality ofly has an identical shaped reflecting concave, any one reflecting concave all has following structure in each reflecting concave layer, with reference to Fig. 4, as by Reference numeral 101A indicated the layer shown in, any one reflecting concave of this layer is by y ²=2p ₂X, wherein p ₁＜p ₂, defined second parabola intersects with adjacent same layer reflecting concave and adjacent bed reflecting concave and the curved surface that forms after rotating shaft C rotates to an angle, and this second parabolical summit is positioned at glass body 10, and end points is positioned at a glass body inner wall surface.And, the second parabolical summit of the formation reflecting concave of each layer is positioned on the concentric circle of arbitrary section with the cup body, and the outside side-play amount by the circle of the cup body inwall on the same relatively radial section of the defined concentric circles in the second parabolical summit of each layer equates.

The parabola of shape in order to the definition reflecting concave of adjacent reflecting concave layer is consistent, promptly is the second parabola y ²=2p ₂X, still, because the reflecting concave quantity in two-layer arbitrarily is identical, so the width difference; Promptly be subjected to the restriction of the section radius of differing heights cup body, on the differing heights of cup body, the width difference of reflecting concave.

In the design of reflector, as shown in Figure 5, general at first definite light source 200 is to the distance L of face to be illuminated, after this distance is determined, in the upper opening angle A of determining reflector, after this, because light source 200 is considered as first parabolic focus, the first parabolical shape has just been determined.After this, suitable again selection second parabolical shape and the focal position is according to parabolical reflective characteristic, the light that light source sends just can be reflected away, and the inwall of the single relatively first parabolical formation is departed from a lattice angle, thereby light is dispersed relatively, increases light efficiency.

In the utility model, adjacent reflecting concave layer, as 101A layer and 101B layer, and 101B layer and 101C layer, be crisscross arranged; Be the end points of any one reflecting concave in the 101B layer, should be arranged on the intersection of two adjacent reflecting concave of 101A layer.

In the utility model, light source 2 can be led light source, and led light source sends light and reflects by described each layer reflecting concave, its light path is shown in Fig. 5,7, as can be seen, reflecting surface is to the reflection of the light orientation of LED, thereby the light that whole reflector is reflected has directive property.

Fig. 7 is the reflective schematic diagram of reflector described in the utility model.After light source 200 sent light, light shone on the illuminated object 300 through a plurality of reflecting concave reflections on reflector 100 inwalls.The light reflected angle is all different, has increased range of exposures, and produces the floodlight effect, and people watch things to have comfortable sensation under this light.

Being the utility model preferred embodiment only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.

Claims

1. reflector is characterized in that: comprise a glass body and a cup end, wherein, a cup end, be provided with a perforate with so that light source stretches into the reflector from this hole, and the top of reflector has opening, with so that the light ejaculation that light source sends; Cup is as bowl-type, and the shape of its inwall is: at first define one first parabola, again the shape that this parabola is rotated a circle and obtains around a vertical rotating shaft of crossing cup perforate center, the end;

On the inwall of cup body, have a plurality of reflecting concave layer, any one reflecting concave layer is all identical with reflecting concave quantity in other reflecting concave layer, and each reflecting concave layer includes mutual next-door neighbour a plurality ofly has an identical shaped reflecting concave, any one reflecting concave all has following structure in each reflecting concave layer: after the rotating shaft of walking around this parabola below end points by one second parabola rotates to an angle, with adjacent same layer reflecting concave, and the adjacent bed reflecting concave intersects and the curved surface of formation, this second parabolical summit is positioned at a glass body, end points is positioned at a glass body inner wall surface, and the second parabolical summit of the formation reflecting concave of each layer is positioned on the concentric circle of arbitrary section with the cup body, and the outside side-play amount by the circle of the cup body inwall on the same relatively radial section of the defined concentric circles in the second parabolical summit of each layer equates.

2. reflector according to claim 1 is characterized in that: described second parabola is configured such that the light that light source sends promptly penetrates opening through primary event.

3. reflector according to claim 1 is characterized in that: the described first parabolical focal length is less than the second parabolical focal length.

4. reflector according to claim 1 and 2 is characterized in that: described cup body inwall is made mirror process.