CN110332504A - Reflector and lighting device - Google Patents

Abstract

The invention discloses a reflector and an illuminating device, wherein the reflector comprises a first reflective surface, a second reflective surface and a third reflective surface, and the first reflective surface, the second reflective surface and the third reflective surface are sequentially and smoothly connected , and all adopt a curved surface structure, the first reflective surface is close to the wall, the third reflective surface is the farthest from the wall, and when the light from the light source irradiates downward from the position above the second reflective surface to the reflector, the The reflector reflects light evenly onto the wall. In the present invention, an asymmetric segmental design is carried out on the reflector, and after the light from the light source is used to irradiate the reflector, the light is distributed twice through the reflector, so that the light can evenly cover the wall surface, and the use of lenses for light distribution is avoided The problem of causing glare can be solved, the lighting comfort and lighting effect can be improved, and it can be widely used in the field of lighting technology.

Description

Reflector and lighting device

technical field

The invention relates to the technical field of illumination, in particular to a reflector and an illumination device.

Background technique

With the rapid development of landscape lighting, LED wall washer has gradually become popular and has become one of the most important landscape lighting fixtures. Conventional LED wall washers generally use lenses to distribute the light of the lamps, and the efficiency of the lenses can reach about 85%-90%. The frosted surface makes the light passing through the lens diffuse randomly, causing glare. If the wall washer is installed in a place where people pass by, the glare will cause discomfort to the human eye and cause environmental light pollution.

Contents of the invention

In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide a reflector and an illuminating device that can irradiate light evenly to the wall and avoid glare.

The technical scheme adopted in the present invention is:

A reflector, comprising a first reflective surface, a second reflective surface and a third reflective surface, the first reflective surface, the second reflective surface and the third reflective surface are smoothly connected in sequence, and all adopt a curved surface structure, the first reflective surface A reflective surface is close to the wall, and the third reflective surface is farthest from the wall. When the light from the light source irradiates downwards from the position above the second reflective surface to the reflector, the reflector will evenly reflect the light to the wall. .

Further, when the distance between the light source and the second reflective surface is 20-40mm, the first reflective surface reflects the light in the range of 0°-80° from the light source, and the second reflective surface reflects light in the range of 80°-80° from the light source. The light in the range of 100° is reflected, and the third reflective surface reflects the light in the range of 100°-180° of the light source.

Further, the first reflective surface is used to evenly reflect the light irradiated on the first reflective surface to the wall surface.

Further, the curved path of the cross section of the first reflective surface satisfies the first formula, and the first formula is:

Y1＝0.001x ³ -0.033x ² -0.820x+16.55

Where Y1 represents the ordinate, and the value range of the abscissa is 0≤x<21.

Further, the second reflective surface is used to evenly reflect the light irradiated on the second reflective surface to the bottom position of the wall, and the bottom position is a position on the wall close to the reflector.

Further, the curved path of the cross section of the second reflective surface satisfies the second formula, and the second formula is:

Y2＝-0.009x ³ +0.740x ² -18.24x+147.1

Wherein Y2 represents the ordinate, and the value range of the abscissa is 21≤x<27.

Further, the third reflective surface is used to reflect the light irradiated on the third reflective surface to the top position of the wall, and the top position is a position on the wall away from the reflector.

Further, the curved path of the cross section of the third reflective surface satisfies the third formula, and the third formula is:

Y3＝0.031x2-1.434x ⁺ 17.55

Wherein Y3 represents the ordinate, and the value range of the abscissa is 27≤x<46.

Another technical scheme adopted in the present invention is:

An illuminating device includes a light source and a reflector, and the reflector adopts the above-mentioned reflector.

The beneficial effect of the present invention is: the present invention carries out asymmetric segmental design to the reflector, and then uses the light from the light source to irradiate the reflector, and then distributes the light twice through the reflector, so that the light can evenly cover the wall surface , to avoid the problem of glare caused by the use of lenses for light distribution, and improve the lighting comfort and lighting effect.

Description of drawings

Fig. 1 is a working principle diagram of a kind of light reflector of the present invention;

Fig. 2 is the structural representation of a kind of light reflector of the present invention;

Fig. 3 is a structural schematic diagram of a lighting device of the present invention;

4 is a schematic diagram of a first formula and a corresponding curved path;

5 is a schematic diagram of a second formula and a corresponding curved path;

Fig. 6 is a schematic diagram of the third formula and the corresponding curved path.

Reference signs: 1. wall surface; 2. reflector; 3. light source; 4. glass; 5. first reflective surface; 6. second reflective surface; 7. third reflective surface.

Detailed ways

As shown in Figures 1 to 3, the present embodiment provides a reflector, including a first reflective surface 5, a second reflective surface 6 and a third reflective surface 7, the first reflective surface 5, the second reflective surface 6 It is smoothly connected with the third reflective surface 7 in sequence, and both adopt a curved surface structure. The first reflective surface 5 is close to the wall 1, the third reflective surface 7 is the farthest from the wall 1, and the light from the light source 3 is reflected from the second reflective surface. When the position above the surface 6 irradiates downward to the reflector 2 , the reflector 2 will evenly reflect the light to the wall surface 1 .

Referring to Figures 1 and 2, when the reflector 2 is applied to wall-washing lighting, the reflector 2 is installed horizontally near the wall 1, specifically, the distance between the first reflective surface 5 and the wall 1 is the shortest, Next is the second reflective surface 6, and the third reflective surface 7 is farthest from the wall. In this embodiment, the light reflector 2 is asymmetrically designed in sections, the light source 3 is installed above the second reflective surface 6, the light from the light source 3 is irradiated downward to the reflector 2, and the light reflector 2 performs Secondary distribution, because each reflective surface distributes light differently, more reasonably distributes the light irradiated from the bottom to the top of the wall 1, so that the light is evenly irradiated on the wall 1, avoiding light distribution through the lens Unevenness, the brightness on the wall surface 1 is uneven, and light spots appear, causing glare, which reduces the lighting comfort and lighting effect. In addition, the use of the reflector has a higher utilization rate of light than that of the lens, which improves the light utilization rate.

Specifically, the wall washer using the reflector 2 of this embodiment is as shown in Figure 3, the light source 3 can be installed on the light source board, and the light source board is arranged directly above the second reflective surface 6, because the reflector 2 is made of high-reflectivity materials. In order to prevent dust from falling on the reflector 2, a layer of glass 4 is added to the light-emitting surface of the wall washer.

Referring to Fig. 2, further, when the distance between the light source 3 and the second reflective surface 6 is 20-40 mm, the first reflective surface 5 reflects light in the range of 0°-80° from the light source, and the second reflective surface 6 The reflective surface 6 reflects the light in the range of 80°-100° of the light source, and the third reflective surface 7 reflects the light in the range of 100°-180° of the light source.

The light source 3 is installed at a distance of 20-40 mm above the second reflective surface 6. In this embodiment, the distance between the light source 3 and the second reflective surface 6 is 30 mm.

Referring to FIG. 1 and FIG. 2 , further, the first reflective surface 5 is used to evenly reflect the light irradiated on the first reflective surface 5 to the wall surface 1 .

The first reflective surface 5 reflects the light in the range of 0°-80° from the light source, the light is reflected by the first reflective surface 5 and deflects to the side of the wall 1, and evenly brightens the wall to be illuminated from the bottom to the top .

Referring to Fig. 4, further, the curved path of the cross section of the first reflective surface 5 satisfies the first formula, and the first formula is:

Y1＝0.001x ³ -0.033x ² -0.820x+16.55

Where Y1 represents the ordinate, and the value range of the abscissa is 0≤x<21.

The curved path of the cross section of the first reflective surface 5 satisfies the first formula, and the correlation coefficient reaches 0.999.

1 and 2, further, the second reflective surface 6 is used to evenly reflect the light irradiated on the second reflective surface 6 to the bottom position of the wall surface 1, and the bottom position is the wall close to the reflector 2 face position.

The second reflective surface 6 reflects the light in the range of 80°-100° of the light source, so that the reflected light is deflected to the wall 1 and irradiates to the bottom of the wall 1, increasing the brightness of the bottom of the wall 1, and the bottom The position is the wall position close to the reflector 2. When the wall washer is installed at the bottom of the building to illuminate upward, the bottom of the building is the bottom position; otherwise, when the wall washer is installed on the top of the building to illuminate downward, the top of the building is the bottom Location.

Referring to Fig. 5, further, the curved path of the cross section of the second reflective surface 6 satisfies the second formula, and the second formula is:

Y2＝-0.009x ³ +0.740x ² -18.24x+147.1

Wherein Y2 represents the ordinate, and the value range of the abscissa is 21≤x<27.

The curved path of the cross section of the second reflective surface 6 satisfies the second formula, and the correlation coefficient reaches 0.999.

1 and 2, further, the third reflective surface 7 is used to reflect the light irradiated on the third reflective surface 7 to the top position of the wall 1, and the top position is a wall position away from the reflector 2 .

The third reflective surface 7 reflects the light in the range of 100°-180° from the light source. After the light passes through the third reflective surface 7, the angle of deflection to the wall 1 is relatively small, so it irradiates to the top of the wall 1 . When the wall washer is actually used, the light source 3 is installed on the light source board, so this part of the reflected light can be used to supplement the dark area and the brightness of the top of the wall caused by the light source board; The overflowing light prevents glare.

Referring to Fig. 6, further, the curved path of the cross section of the third reflective surface 7 satisfies the third formula, and the third formula is:

Y3＝0.031x2-1.434x ⁺ 17.55

Wherein Y3 represents the ordinate, and the value range of the abscissa is 27≤x<46.

The curved path of the cross section of the third reflective surface 7 satisfies the third formula, and the correlation coefficient reaches 0.999.

In summary, the light reflector of this embodiment has at least the following beneficial effects:

(1) The reflector is asymmetrically designed in sections, and then the light from the light source is used to irradiate the reflector, and the light is distributed twice through the reflector so that the light can cover the wall evenly, avoiding the use of lenses. The problem of glare caused by light distribution improves the lighting comfort and lighting effect.

(2) The reflected light of the third reflective surface is used to supplement the brightness of the dark area and the top of the wall due to the blocking of the light source board, so as to achieve a uniform wall washing effect and improve the lighting effect.

Embodiment two

Referring to FIG. 3 , this embodiment provides an illuminating device, including a light source and a reflector, and the reflector adopts the reflector described in the first embodiment.

The lighting device of this embodiment has any combination of technical features of the light reflector described in Embodiment 1 of the present invention, and has the corresponding functions and beneficial effects of Embodiment 1.

The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the described embodiments, those skilled in the art can also make various equivalent deformations or replacements without violating the spirit of the present invention , these equivalent modifications or replacements are all within the scope defined by the claims of the present application.

Claims (9)

1. A reflector, characterized in that it comprises a first reflective surface, a second reflective surface and a third reflective surface, the first reflective surface, the second reflective surface and the third reflective surface are connected smoothly in sequence, and all adopt Curved surface structure, the first reflective surface is close to the wall, the third reflective surface is farthest from the wall, and when the light from the light source irradiates downwards from the position above the second reflective surface to the reflector, the reflector will Evenly reflected to the wall. 2. A reflector according to claim 1, characterized in that, when the distance between the light source and the second reflective surface is 20-40mm, the first reflective surface ranges from 0° to 80° of the light source The second reflective surface reflects the light in the range of 80°-100° from the light source, and the third reflective surface reflects the light in the range of 100°-180° from the light source. 3 . The reflector according to claim 2 , wherein the first reflective surface is used to uniformly reflect the light irradiated on the first reflective surface to the wall. 4 . 4. A kind of reflector according to claim 3, characterized in that, the curved path of the cross section of the first reflective surface satisfies the first formula, and the first formula is: Y1＝0.001x ³ -0.033x ² -0.820x+16.55 Where Y1 represents the ordinate, and the value range of the abscissa is 0≤x<21. 5. A kind of reflector according to claim 2, characterized in that, the second reflective surface is used to evenly reflect the light irradiated to the second reflective surface to the bottom position of the wall, and the bottom position is The wall position close to the reflector. 6. A kind of reflector according to claim 5, characterized in that, the curved path of the cross section of the second reflective surface satisfies the second formula, and the second formula is: Y2＝-0.009x ³ +0.740x ² -18.24x+147.1 Wherein Y2 represents the ordinate, and the value range of the abscissa is 21≤x<27. 7. A kind of reflector according to claim 2, characterized in that, the third reflective surface is used to reflect the light irradiated on the third reflective surface to the top position of the wall, and the top position is away from the reflective light The wall position of the appliance. 8. A kind of reflector according to claim 7, characterized in that, the curved path of the cross section of the third reflective surface satisfies the third formula, and the third formula is: Y3＝0.031x2-1.434x ⁺ 17.55 Wherein Y3 represents the ordinate, and the value range of the abscissa is 27≤x<46. 9. An illuminating device, characterized in that it comprises a light source and a reflector, and the reflector adopts the reflector according to any one of claims 1-8.