CN208107994U - It is a kind of applied to the lens, light emitting module and wall lamp of washing wall - Google Patents

Abstract

The utility model discloses a lens, a light-emitting module and a wall washer lamp for washing walls, comprising: a TIR lens; the light emitting surface of the TIR lens is a circular surface formed by a combination of a mirror surface and a bead surface; the bead surface is a continuous The bead surface is bow-shaped, and the arc of the bow coincides with the edge of the light-emitting surface; the area of the bead surface is not less than 1/3 of the area of the light-emitting surface, and the area of the bead surface is not greater than the area of the light-emitting surface 1/2. The light-emitting module includes the above-mentioned lens; the wall washer includes a linear array composed of the above-mentioned light-emitting modules; the bead surfaces on the light-emitting surface of the lens used for wall-washing are located on the same straight line. The lens, the light-emitting module and the wall washer provided by the utility model for washing walls have uniform light emission and good wall washing effect, and can improve the overall lighting engineering effect.

Description

Lens, light-emitting module and wall washer applied to wall washer

technical field

The utility model belongs to the technical field of optical devices, in particular to a lens, a light-emitting module and a wall washer applied to washing walls.

Background technique

With the continuous process of urbanization, especially in the construction of urban public lighting and landscape renovation of tourist attractions, the requirements for lighting rendering effects are getting higher and higher, and a very important factor in lighting rendering effects is wall washing. Effect.

Most of the existing wall washers use TIR lenses, which convert the light emitted by the light source into collimated light and emit it. As shown in Figure 1, part of the light emitted by the light source is refracted through the transmission surface of the TIR lens (that is, the light incident surface) to collimate and condense light, and the other part is refracted by the cylindrical surface at the bottom of the lens, and then reflected by the total reflection surface to the collimated light. Straight spotlight. As shown in Figure 2, the above-mentioned collimated and concentrated light is emitted through the light-emitting surface of the lens. Since the light-emitting surface of the lens is a smooth mirror surface, most of the collimated light does not refract or the refraction angle is small. Therefore, it is emitted from the light-emitting surface. The light is still collimated. Since there are multiple light-emitting modules composed of TIR lenses in the wall washer, and they are arranged in an array, the emitted mixed light will appear beam stripes, that is, the light is not uniform near the light emitting surface of the wall washer, and the wall washer effect Poor, thus affecting the overall lighting engineering effect.

Utility model content

The utility model aims to provide a lens, a light-emitting module and a wall washer applied to washing walls, which have uniform light output and good wall washing effect, and can improve the overall lighting engineering effect.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A lens for washing walls disclosed by the utility model comprises: a TIR lens; the light emitting surface of the TIR lens is a circular surface formed by a combination of a mirror surface and a bead surface; the bead surface is continuous; the bead surface It is bow-shaped, and the arc of the bow coincides with the edge of the light-emitting surface; the area of the bead surface is not less than 1/3 of the area of the light-emitting surface, and the area of the bead surface is not greater than 1/2 of the area of the light-emitting surface.

Preferably, the area of the bead surface is 1/2 of the area of the light-emitting surface.

Preferably, the light incident surface of the TIR lens is an axisymmetric curved surface.

Preferably, the total reflection surface of the TIR lens is an axisymmetric curved surface.

Further, the central area of the bottom of the TIR lens is provided with a depression; the side walls of the depression are inclined from bottom to top and inward.

The utility model also discloses a light-emitting module, comprising: a light source and any one of the above-mentioned lenses used for washing walls; the light source is located at the center of the bottom of the lens used for washing walls.

Preferably, the light source is an LED lamp.

The utility model also discloses a wall washer, which comprises a linear array composed of the above-mentioned light-emitting modules; in the linear array, the bead surfaces on the light-emitting surface of the lens used for wall washing are located on the same straight line.

The lens, light-emitting module and wall washer applied to the wall washing provided by the utility model, the pure mirror light emitting surface of the existing TIR lens is partly beaded, so that the light emitting surface of the TIR lens is composed of a mirror surface and a bead surface. , and the bead surface is a continuous arcuate surface, located at one edge of the entire light-emitting surface. Since this part of the bead surface can change the direction of the collimated light reflected by the total reflection surface, when the above-mentioned TIR lens is applied to the wall washer in a linear array and the bead surface is installed against the wall, it will not look like The existing wall washer has a series of beam stripes, but will refract the collimated light to realize the divergence of the light, so as to achieve the purpose of uniform light mixing near the light emitting surface. The other part of the mirror on the light-emitting surface is still used to emit collimated light to achieve the wall-washing effect. It can be seen that the technical solution provided by the utility model has uniform light output, good wall washing effect, and can improve the overall lighting engineering effect.

Description of drawings

Fig. 1 is the structural representation of existing TIR lens;

Fig. 2 is the sectional view of existing TIR lens;

Fig. 3 is the structural representation of TIR lens in the utility model embodiment;

Fig. 4 is the top view of TIR lens in the utility model embodiment;

Fig. 5 is the sectional view of TIR lens in the utility model embodiment;

In the figure: 1 is the light emitting surface, 11 is the mirror surface, 12 is the bead surface, 2 is the light incident surface, 3 is the total reflection surface, 4 is the depression, 41 is the side wall of the depression, and 5 is the light source.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings.

Fig. 3 is a schematic structural view of an embodiment of the present invention, including: a TIR lens; the TIR lens includes: a light incident surface at the bottom (the light incident surface is also referred to as a transmission surface), a light exit surface at the top, and a light incident surface at the side Total reflection surface; the light exit surface 1 of the TIR lens is a circular surface formed by a combination of a mirror surface 11 and a bead surface 12; the bead surface 12 is continuous; The edges of the light-emitting surface 1 overlap; the area of the bead surface 12 is not less than 1/3 of the area of the light-emitting surface 1, and the area of the bead surface 12 is not greater than 1/2 of the area of the light-emitting surface 1. Preferably, the area of the bead surface 12 is 1/2 of the area of the light emitting surface 1 .

In this embodiment, the light incident surface 2 of the TIR lens is an axisymmetric curved surface; the total reflection surface 3 of the TIR lens is an axisymmetric curved surface. The central area of the bottom of the TIR lens is provided with a depression 4 for placing the light source 5; the side wall 41 of the depression 4 is inclined from bottom to top inwardly, that is, the side wall 41 of the depression 4 is with a certain draft angle. degree standard cylinder.

The utility model also discloses a light-emitting module, comprising: a light source and the above-mentioned lens applied to washing walls. Place the light source in the depression 4 at the bottom of the TIR lens, and at the center of the bottom. The light source is preferably an LED lamp. As shown in Figure 5, the light emitted by the LED lamp is divided into two parts and enters the TIR lens: one part of the light is refracted through the axisymmetric incident surface (transmission surface) at the bottom of the TIR lens to achieve the purpose of focusing and collimating the light path; the other part of the light After being refracted by the side wall 41 of the recess 4, it is reflected by the total reflection surface to achieve the purpose of focusing and collimating the light path. When the two parts of the collimated light path pass through the light-emitting surface 1, the light hitting the bead surface 12 will diverge due to refraction, while the light hitting the mirror 11 is still a collimated light. In this way, if the above-mentioned light-emitting modules are arranged in a straight line, and the bead surface on the light-emitting surface is assembled against the wall, the above-mentioned divergent light rays hitting the bead surface will not appear beam streaks like the existing scheme. That is, there will be no dark area near the light-emitting surface of the entire light-emitting module, so that the light spots near the light-emitting surface will be more uniform; at the same time, the collimated light hitting the mirror surface can still show a wall-washing effect.

The utility model also discloses a wall washer, which includes a linear array composed of the above-mentioned light-emitting modules; in the linear array, the bead surface 12 on the light emitting surface 1 of the lens used for wall washing is located on the same straight line . When installing the wall washer, the bead surface 12 is assembled against the wall to present a more uniform wall washer effect.

In addition, the technical effect of the utility model can also be achieved through the following six methods: 1. The concave surface is 1/3 to 1/2 frosted, and the total reflection surface is 1/3 to 1/2 scale surface; 2. The concave surface is 1 /3～1/2 pearl surface, and 1/3～1/2 scale surface of the total reflection surface; 3, 1/3～1/2 frosted surface of the depression, and 1/3～1/2 pearl surface of the light emitting surface; 4 1/3~1/2 stripes on the concave surface, and 1/3~1/2 bead surface on the light emitting surface; 6. 1/3~1/2 stripes on the concave surface, and 1/3~1/2 frosted surface.

The lens, light-emitting module and wall washer applied to the wall washing provided by the utility model, the pure mirror light emitting surface of the existing TIR lens is partly beaded, so that the light emitting surface of the TIR lens is composed of a mirror surface and a bead surface. , and the bead surface is a continuous arcuate surface, located at one edge of the entire light-emitting surface. Since this part of the bead surface can change the direction of the collimated light reflected by the total reflection surface, when the above-mentioned TIR lens is applied to the wall washer in a linear array and the bead surface is installed against the wall, it will not look like The existing wall washer has a series of beam stripes, but will refract the collimated light to realize the divergence of the light, so as to achieve the purpose of uniform light mixing. The other part of the mirror on the light-emitting surface is still used to emit collimated light to achieve the wall-washing effect. It can be seen that the technical solution provided by the utility model has uniform light output, good wall washing effect, and can improve the overall lighting engineering effect.

Certainly, the utility model also can have other various embodiments, under the situation of not departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and distortions according to the utility model, but these Corresponding changes and deformations should all belong to the scope of protection of the appended claims of the utility model.

Claims (8)

1. it is a kind of applied to the lens for washing wall, including：TIR lens；It is characterized in that, the light-emitting surface (1) of the TIR lens is served as reasons The disc that mirror surface (11) and pearl face (12) combination are formed；The pearl face (12) is continuous；The pearl face (12) is arch, described The coincident of bowed arc and the light-emitting surface (1)；Pearl face (12) area is not less than the 1/ of the light-emitting surface (1) area 3, and pearl face (12) area is not more than the 1/2 of light-emitting surface (1) area.

2. the lens according to claim 1 for being applied to wash wall, which is characterized in that pearl face (12) area goes out for described in The 1/2 of smooth surface (1) area.

3. according to claim 1 be applied to wash the lens of wall, which is characterized in that the incidence surface (2) of the TIR lens is Axisymmetric curved surface.

4. the lens according to claim 1 for being applied to wash wall, which is characterized in that the fully reflecting surface (3) of the TIR lens For axisymmetric curved surface.

5. the lens according to claim 1 for being applied to wash wall, which is characterized in that the center of TIR lens bottom Domain is equipped with recess (4)；The side wall (41) of the recess (4) slopes inwardly from the bottom up.

6. a kind of light emitting module, which is characterized in that including：It is applied to wash wall described in light source and claim 1 to 5 any one Lens；The light source is located at the bottom centre position of the lens for being applied to wash wall.

7. light emitting module according to claim 6, which is characterized in that the light source is LED light.

8. a kind of wall lamp, which is characterized in that including the linear array being made of light emitting module as claimed in claim 7；Institute It states in linear array, the pearl face (12) on the light-emitting surface (1) applied to the lens for washing wall is located on the same line.