WO2014161120A1

WO2014161120A1 - Illuminating lamp

Info

Publication number: WO2014161120A1
Application number: PCT/CN2013/001581
Authority: WO
Inventors: 刘超博; 邓诗涛
Original assignee: 欧普照明股份有限公司
Priority date: 2013-04-02
Filing date: 2013-12-17
Publication date: 2014-10-09
Also published as: CN104100846A

Abstract

Disclosed is an illuminating lamp, comprising a shell (1), an LED (2), a transparent part (31) and a light guide part (32). The LED (2), the transparent part (31) and the light guide part (32) are arranged in the shell (1). The light guide part (32) comprises a light exit surface, wherein light rays emitted by the LED (2) exit from the light exit surface of the light guide part (32) and the transparent part (31).

Description

Lighting fixture

The invention relates to a luminaire, in particular to a luminaire. Background technique

Currently, LED luminaires currently on the market generally include a housing having an LED light source and a reflector for light distribution. The light in the small angle direction of the LED light source is directly emitted from the light exit port of the outer casing, and the light in the large angle direction is reflected by the reflector and is emitted from the light exit port of the outer casing. In order to make the light appear more evenly, a diffuser plate is provided at the light exit of the outer casing. The light-emitting surface of the LED lamp is the outer surface of the diffuser plate, and the light-emitting surface is relatively simple, lacking a layered and three-dimensional feeling. Summary of the invention

The technical problem to be solved by the present invention is to provide a lighting fixture.

In order to solve the above technical problem, the lighting fixture of the present invention includes a housing, an LED, a transparent portion, and a light guiding portion, wherein the LED, the transparent portion, and the light guiding portion are disposed in the housing, and the light guiding portion includes The light emitting surface emits light from the light emitting surface of the light guiding portion and the transparent portion.

Preferably, the light guiding portion is made of a transparent material.

Preferably, the light guiding portion encloses a channel through which light is emitted, and part of the light of the LED passes through the transparent portion and then passes through the channel.

Preferably, the light-emitting surface of the light guiding portion is a light-emitting surface that can diffuse the light. Preferably, the light-emitting surface of the light guiding portion is an end surface of the light guiding portion that is far from the LED. Preferably, a side surface of the light guiding portion facing the channel and a side surface facing away from the channel are total reflection surfaces. Preferably, the light guiding portion is provided with one or more step surfaces toward one side of the channel, and the end surface of the step surface and/or the light guiding portion that is far from the LED is a light emitting surface.

Preferably, a surface of the light guiding portion away from the channel is a total reflection surface, and a portion of the light guiding portion facing the channel is a total reflection surface except the step surface.

Preferably, the light-emitting surface of the light guiding portion is subjected to sanding or etching treatment.

Preferably, the lighting fixture is further provided with a reflector, and part of the light emitted by the LED is reflected by the reflector and enters the light guiding portion.

Preferably, the reflector is disposed lateral to the LED.

Preferably, the lighting fixture is further provided with a reflecting portion that is in close contact with a side surface of the light guiding portion away from the passage.

Preferably, the reflecting portion is a diffuse reflection film.

By providing the transparent portion and the light guiding portion, a portion of the light emitted by the LED is emitted from the transparent portion, and a portion is emitted from the light emitting surface of the light guiding portion, that is, the light emitted by the LED is emitted from the plurality of surfaces, so that the light of the lighting fixture has Rich sense of layering and three-dimensionality, it is more beautiful than the single-gloss lighting fixture in the prior art. DRAWINGS

Figure 1 is a schematic view of Embodiment 1 of a lighting fixture of the present invention;

2 is a schematic view showing the positional relationship between the LED, the reflector, and the transparent portion and the light guiding portion in FIG. 1; FIG. 3 is a plan view of the integrally formed transparent portion and the light guiding portion in FIG.

Figure 4 is a schematic view of Embodiment 2 of the lighting fixture of the present invention;

5 is a schematic view showing the positional relationship between the LED, the reflector, and the transparent portion and the light guiding portion in FIG. 4; FIG. 6 is a perspective view of the integrally formed transparent portion and the light guiding portion in FIG.

Fig. 7 is a plan view of the integrally formed transparent portion and light guiding portion of Fig. 4. detailed description

Example 1

Embodiment 1 of the present invention will be described in detail below with reference to Figs. The lighting fixture of this embodiment includes a housing 1, an LED 2, a transparent portion 31, and a light guiding portion 32. The LED 2, the transparent portion 31, and the light guiding portion 32 are disposed in the housing 1, and the light guiding portion The light emitting surface of the light guiding portion 32 is the end surface B of the light guiding portion 32 far from the LED 2, and the light emitted by the LED is from the light guiding portion. The light emitting surface of 32 and the transparent portion 31 are emitted. In the embodiment, the light guiding portion 32 is made of a transparent material. The transparent portion 31 is also made of a transparent material. In the embodiment, the transparent portion 31 and the light guiding portion 32 are integrally formed, and are made of a transparent material, such as glass, transparent acrylic, etc., which can reduce the number of parts of the lamp and facilitate installation. In this embodiment, the light guiding portion 32 includes walls that are sequentially connected, the wall of the light guiding portion encloses a channel through which light is emitted, and part of the light of the LED 2 passes through the transparent portion 31 and then passes through the In the channel, another portion of the light of the LED 2 passes through the light guiding portion and exits from the end surface B of the light guiding portion 32 that is far from the LED 2. Thus, the lighting fixture of the embodiment has the light guiding portion 32 away from the light guiding portion 32. The annular strip-shaped light-emitting surface formed by the far end B of the LED 2 and the light-emitting surface formed by the surface A of the transparent portion 31 have a rich layering and three-dimensional feeling on the light-emitting surface of the illumination lamp. The light-emitting surface of the light guiding portion 32 is a light-emitting surface that can diffuse the light, and the light-emitting surface is treated by sanding or etching to make it rough, so that the light-emitting surface can be diffused. The light side. The side surface D of the light guiding portion 32 facing the channel and the side surface E away from the channel are all total reflection surfaces, so that the light entering the light guiding portion 32 is reflected by the total reflection surface multiple times. The light emitted from the end surface B of the light guiding portion 32 can increase the brightness of the light-emitting surface of the light guiding portion 32. By adjusting the angle and positional relationship between the surface D and the surface E and the LED 2, the surface D and the surface E can be made into a total reflection surface. The light entering the light guiding portion is reflected by the total reflection surface to the light exit surface to be emitted. The illuminating device is further provided with a reflector 9 , and a part of the light emitted by the LED 2 is reflected by the reflector 9 and enters the light guiding portion 32 , so that the luminous flux of the light entering the light guiding portion 32 can be increased, thereby improving Light guiding portion 32 The brightness of the illuminating surface. The reflector 9 is disposed on the side of the LED 2. In order to prevent the light entering the light guiding portion 32 from being emitted from the side surface E of the light guiding portion 32 away from the channel, the lighting fixture may further be provided with a side of the light guiding portion 32 away from the channel. A reflecting portion of the surface E (not shown), for example, a diffuse reflection film is attached to the surface. The lighting fixture of the embodiment has two light-emitting surfaces which are arranged in a stepwise manner, that is, a surface A of the transparent portion 31 which is far from the LED 2 and an end surface B of the light guiding portion 32 which is far from the LED 2, Thereby, the lighting fixture has a rich sense of layering and three-dimensionality.

By providing the transparent portion and the light guiding portion, a portion of the light emitted by the LED is emitted from the transparent portion, and a portion is emitted from the light emitting surface of the light guiding portion, that is, the light emitted by the LED is emitted from the plurality of surfaces, so that the light of the lighting fixture has Rich sense of layering and three-dimensionality, it is more beautiful than the single-gloss lighting fixture in the prior art. 'Example 2:

Embodiment 1 of the present invention will be described in detail below with reference to Figs. 4-7. The lighting fixture of this embodiment includes a housing 1, an LED 2, a transparent portion 31, and a light guiding portion 32. The LED 2, the transparent portion 31, and the light guiding portion 32 are disposed in the housing 1, and the light guiding portion 32 includes a light-emitting surface, and light emitted from the LED is emitted from the light-emitting surface of the light guiding portion 32 and the transparent portion 31. In this embodiment, the light guiding portion 32 encloses a channel through which light is emitted, and part of the light of the LED 2 passes through the transparent portion 31 and then passes through the channel. The light guiding portion 32 is provided with a step surface C toward the channel side, and the step surface C and the end surface B of the light guiding portion 32 that is far from the LED 2 are light emitting surfaces. Thus, the illumination lamp of the present embodiment has an annular strip-shaped light-emitting surface formed by the end surface B of the light guiding portion 32 that is far from the LED 2, an annular strip-shaped light-emitting surface composed of the step surface C, and a surface of the transparent portion 31. The illuminating surface of A, the illuminating surface of the lighting fixture has a rich sense of layering and three-dimensionality. In the embodiment, the light guiding portion 32 is made of a transparent material. The transparent portion 31 is also made of a transparent material. In the embodiment, the transparent portion 31 and the light guiding portion 32 are integrally formed, and are made of a transparent material, such as glass, transparent acrylic, etc., which can reduce the number of parts of the lamp and facilitate installation. The illumination lamp of the present embodiment has an endless belt-shaped light-emitting surface formed by an end surface B of the light guiding portion 32 that is far from the LED 2, an annular strip-shaped light-emitting surface composed of the step surface C, and a surface A of the transparent portion 31. The illuminating surface of the lighting fixture has a rich sense of layering and three-dimensionality. The two light-emitting surfaces of the light guiding portion 32 are light-emitting surfaces that can diffuse the light, and the light-emitting surface is treated by sanding or etching, and roughened, so that the light-emitting surface becomes Diffusion of the light surface. A side surface E of the light guiding portion 32 away from the channel is a total reflection surface, and a portion D of the light guiding portion facing the channel is a total reflection surface except the step surface. The light entering the light guiding portion 32 is reflected from the two light-emitting surfaces of the light guiding portion 32 after being totally reflected by the total reflection surface, so that the brightness of the light-emitting surface of the light guiding portion 32 can be improved, and the surface D and the surface E can be adjusted. The angle and positional relationship with LED2 make surface D and surface E a total reflection surface. The illuminating device is further provided with a reflector 9 , and a part of the light emitted by the LED 2 is reflected by the reflector 9 and enters the light guiding portion 32 , so that the luminous flux of the light entering the light guiding portion 32 can be increased, thereby improving The brightness of the light exit surface of the light guiding portion 32. The reflector 9 is disposed on the side of the LED 2. In order to prevent the light entering the light guiding portion 32 from being emitted from the side surface E of the light guiding portion 32 away from the channel, the lighting fixture may further be provided with a side of the light guiding portion 32 away from the channel. A reflecting portion of the surface E (not shown), for example, a diffuse reflection film is attached to the surface.

As a simple modification of the second embodiment, only the step surface C of the light guiding portion 32 may be provided as a light-emitting surface; and the end surface B of the light guiding portion may be provided as a non-light-emitting surface, and an opaque material such as a metal may be provided on the end surface B thereof. , or by other means.

As another simple modification of the second embodiment, the light guiding portion 32 may be provided with a plurality of step surfaces, and all the step surfaces may be provided as a light-emitting surface.

By providing the transparent portion and the light guiding portion, a portion of the light emitted by the LED is emitted from the transparent portion, and a portion is emitted from the light emitting surface of the light guiding portion, that is, the light emitted by the LED is emitted from the plurality of surfaces, so that the light of the lighting fixture has Rich sense of layering and three-dimensionality, it is more beautiful than the single-gloss lighting fixture in the prior art.

Claims

Rights request

A lighting fixture comprising a housing, an LED, a transparent portion and a light guiding portion, wherein the LED, the transparent portion and the light guiding portion are disposed in the housing, and the light guiding portion includes a light emitting surface, Light emitted from the LED is emitted from the light emitting surface of the light guiding portion and the transparent portion.

2. The lighting fixture of claim 1, wherein the light guiding portion is made of a transparent material.

The lighting fixture according to claim 1, wherein the light guiding portion encloses a channel through which light is emitted, and a part of the light of the LED passes through the transparent portion and then passes through the channel.

The lighting fixture according to claim 1, wherein the light-emitting surface of the light guiding portion is a light-emitting surface that can diffuse the light.

The lighting fixture according to claim 3, wherein the light-emitting surface of the light guiding portion is an end surface of the light guiding portion that is far from the LED.

The lighting fixture according to claim 5, wherein one side surface of the light guiding portion toward the passage and one side surface away from the passage are total reflection surfaces.

The lighting fixture according to claim 3, wherein the light guiding portion is provided with one or more step faces toward one side of the channel, and the step surface and/or the light guiding portion is away from the LED The far end face is the light exit face.

The illuminating device according to claim 7, wherein a side surface of the light guiding portion away from the channel is a total reflection surface, and the light guiding portion is disposed toward a side surface of the channel The portion other than the step surface is a total reflection surface.

The lighting fixture according to claim 1, wherein the light-emitting surface of the light guiding portion is subjected to sanding or etching.

The lighting fixture according to claim 1, wherein the lighting fixture is further provided with a reflector, and a part of the light emitted by the LED is reflected by the reflector and enters the light guiding portion.

11. The lighting fixture of claim 10, wherein the reflector is disposed lateral to the LED.

The lighting fixture according to claim 3, wherein the lighting fixture further comprises a reflecting portion that is in close contact with a side surface of the light guiding portion away from the passage.

The lighting fixture according to claim 12, wherein the reflecting portion is a diffuse reflection film.