CN203980041U - A kind of have a light fixture backlight - Google Patents

Abstract

The utility model discloses a lamp with a backlight, which comprises at least one main light source, a lamp holder, a backlight device and a supporting part. The backlight device is fixed on the back of the lamp holder through the support member; the lamp with light supply of the present invention also includes a transparent light guide device, the light guide device is fixed with the lamp holder, and the light guide device The device and the at least one main light source are arranged on the side of the lamp socket.

Description

A lamp with a backlight

technical field

The utility model relates to a lamp, in particular to an LED lamp with a backlight.

Background technique

Among the existing lighting devices, the ceiling-mounted lamp is a type of lamp directly installed on the ceiling, which can make the ceiling brighter and create a sense of brightness in the whole room. Since the floor heights of modern people's houses are low, in order to save space, more and more ceiling-mounted lamps are used. The product in this case is a ceiling-mounted lamp, which has been changed to ceiling-mounted. The concept of ceiling-mounted lamps is not very suitable. At the same time, lighting lamps are no longer just for simple daily lighting, but more for an aesthetic effect, and create a soft atmosphere for the family through different light effects. Therefore, by adding an auxiliary light source behind the main light source, a background light is established, so that the soft background light and the main light can meet the requirements of normal lighting and establish a soft atmosphere at the same time. However, in the existing ceiling-mounted lamps, because the distance between them and the ceiling surface is almost zero, and because of the resistance of the illuminating lamp and the lampshade, the background light can only be emitted from a small area around the frame of the ceiling-mounted lamps. Visible, and background lights and key lights cannot be mixed together to create new effects.

Utility model content

In order to overcome the above-mentioned technical defects, the purpose of this utility model is to provide a lamp with a backlight.

The utility model discloses a lamp with a backlight, which comprises at least one main light source, a lamp holder, a backlight device and a supporting part, and the backlight device is fixed on the back of the lamp holder through the supporting part; it also includes: a transparent The light guide device is fixed to the lamp holder, and the light guide device and the at least one main light source are arranged on the side of the lamp holder.

Preferably, in the present invention, the backlight device is configured to emit backlight and irradiate the backlight to the light guide device.

Preferably, the present invention further includes an installation base for fixing the lamp with backlight, and the distance between the installation base and the lamp holder is greater than or equal to 10 cm through the support member.

Preferably, in the present utility model, the light guide device includes a light guide plate and a transparent protective cover covering the light guide plate.

Preferably, in the present utility model, the transparent protective cover is frosted glass.

Preferably, in the present utility model, the light guiding device is in the shape of a ring.

Preferably, in the present utility model, the backlight device is arranged around the support member.

Preferably, in the present utility model, the backlight device includes: at least one secondary light source and a refracting device, the at least one secondary light source is fixed on the refracting device, and the refracting device is configured to The light from the secondary light source is projected evenly.

Preferably, in the utility model, the refraction device includes a top surface of the refraction device, a reflection surface, and a light-emitting surface, and the top surface of the refraction device is provided with the at least one secondary light source; the reflection surface surrounds the outer periphery of the support member , and is arranged between the top surface of the refraction device and the top surface of the lamp holder; the light exit surface is formed by extending from the outer edge of the top surface of the refraction device to the top surface of the lamp holder.

Preferably, in the present utility model, the at least one main light source and/or the at least one secondary light source are LEDs.

Preferably, in the present utility model, the at least one main light source and/or the at least one secondary light source emit color variable light.

After adopting the above technical solution, compared with the prior art, it has the following beneficial effects:

1. The backlight illumination range becomes larger;

2. Most of the backlight can be seen directly, no longer blocked by the lamp holder or the main light source.

Description of drawings

Fig. 1 is the front schematic diagram of an embodiment of the utility model lamp;

Fig. 2 is a cross-sectional view of an embodiment of the utility model lamp.

Among them, lamp 1, lamp holder 10, main light source 11, light guide device 12, light guide plate 121, transparent protective cover 122, support member 13, backlight device 14, secondary light source 141, refraction device 142, reflective surface 1421, and light emitting surface 1422, top surface of refraction device 1423, installation base 15

Detailed ways

The advantages of the present utility model will be further elaborated below in conjunction with specific embodiments and accompanying drawings.

As shown in Fig. 1 and Fig. 2, the lamp 1 of the present invention includes a ring-shaped lamp holder 10, several main light sources 11 attached to the outer periphery of the lamp holder 10, arranged around the outer periphery of the lamp holder 10 and receiving from the main light source 11 the light guide device 12 for emitting light, the support member 13 that is fixedly connected with the lamp holder 10 and fixes the lamp holder 10 and the light guide device 12 to the installation base 15 , and the backlight device 14 that is arranged around the periphery of the support member 13 . The main light source 11 is several LED light sources. In the preferred embodiment of the present invention, the installation base 15 is a ceiling, but in other preferred embodiments, the installation base is not limited to the ceiling, and can be other places where the lamp of the present invention needs to be installed.

The light guiding device 12 is arranged on the outer periphery of the lamp holder 10 ie surrounds the lamp holder 10 , the main light source 11 is pasted on the outer periphery of the lamp holder 10 , and the main light source 11 is fixed on the lamp holder 10 at the same time. In other preferred embodiments, the lamp holder 10 may have other shapes, such as cube, cuboid and so on. At this time, the backlight device 14 is still located above the top surface of the lamp holder 10 , the main light source 11 can be attached to the side of the lamp holder 10 , and the light guide device 12 is arranged around the side of the lamp holder 10 . LED driving and power supply lines (not shown) can be arranged in the lamp holder 10 . When the main light source 11 emits light, the light guide device 12 can receive the light emitted by the main light source 11 and spread it outward. The preferred light guide device 12 can be arranged to be arranged around the lamp holder 10 and the outer circumference of the main light source 11, and is circular. Ring shape, which not only has an aesthetic effect, but also makes the illumination light more uniform and peaceful.

As shown in Figure 2 is a cross-sectional view of an embodiment of the utility model, since the main light source 11 is arranged on the outer periphery of the lamp holder 10, the light emitted by it is mainly a line light source, but in order to play a better role in lighting, through Adding the light guide device 12 can effectively transform the line light source into a surface light source. The light guide device 12 includes a light guide plate 121, the main light source 11 faces the side of the light guide plate 121, and the line light source emitted by it enters the light guide plate 121 laterally and is refracted within the height range of the light guide plate 121 before passing through the grid set therein. After the point scatters the light evenly, the line light source can be transformed into a uniform surface light source. Then the surface light source is further uniformized by a layer of transparent protective cover 122 covered by the light guide plate 121 to achieve an ideal lighting effect. The protective cover 122 can effectively protect the light guide plate 121 and prevent it from being damaged by external force. Since the transparent protective cover 122 needs to transmit light, plastic or glass is generally used. In special cases, the transparent protective cover 122 can be made of atomized glass, so that the light emitted by the main light source 11 passes through the light guide plate 121, and then passes through the transparent protective cover 121. The light emitted from behind the cover 122 will appear softer to obtain a better environmental effect and effectively create an atmosphere.

In this embodiment, the backlight device 14 is disposed around the periphery of the support member 13 and located on the back of the lamp holder 10 , and is mainly used to generate backlight. The backlight device 14 includes at least one secondary light source 141 and a refracting device 142 . The secondary light source 141 is fixed on the top of the refracting device 142 and surrounds the outer periphery of the support member 13 . In other implementations, the secondary light sources 141 can be arranged in various ways according to the need for the backlight effect. The support member 13 is also connected to the installation foundation 15 at the same time. Because the light guiding device 12 is transparent, the backlight emitted by the secondary light source 141 behind the lamp holder 10 can be seen. Moreover, since the support component 13 has a certain height, preferably, the distance between the support component 13 and the installation base 15 is greater than 10 cm, so that the backlight effect is better. The background light emitted from the secondary light source 141 will be irradiated outwards through the light guide device 12 . In this way, looking upward from the transparent light guide device 12 , the light emitted by the secondary light source 141 and the light emitted by the main light source 11 can be superimposed together to create a better light effect. In other preferred embodiments, the backlight may only be visible through the transparent light guiding device 12 , without participating in the superimposition of light from the main light source 11 .

Preferably, due to the problem of refraction angle, the light emitted by the secondary light source 141 cannot directly form a uniform backlight effect, so the light from the secondary light source 141 can be effectively used by changing the structure inside the refraction device 142 . The refraction device 142 includes a horizontal refraction device top surface 1423 for the arrangement of the secondary light source 141, a reflective surface 1421 that is partially attached and surrounds the outer periphery of the support member 13 and extends between the above-mentioned refraction device top surface 1423 and the top surface of the lamp holder 10 And a light-emitting surface 1422 extending from the outer edge of the top surface to the top surface of the lamp holder 10 . A light mixing cavity is formed around the top surface 1423 of the refraction device, the reflection surface 1421 and the light output surface 1422 . The reflective surface 1421 is an arc-shaped concave surface. Part of the light emitted by the secondary light source 141 is directly transmitted through the light-emitting surface 1422, and part of the light is irradiated on the reflecting surface 1421 and then refracted to the light-emitting surface 1422. Therefore, the backlight effect at the light-emitting surface 1422 is uniform and beautiful. of. In other preferred implementation manners, optical components such as lenses may also be provided to control the light effect of the secondary light source 141 . At this time, the backlight effect is visible through the transparent light guiding device 12 . The reflective surface 1421 and the light-emitting surface 1422 can exist independently or be used together at the same time. Those skilled in the art can imagine that when the reflective surface 1421 and the light-emitting surface 1422 are used together, the light emitted by the secondary light source 141 can be more effectively used. Collected on the light guide device 12.

In this embodiment, LEDs can be used as the main light source 11. Due to the small size of the LEDs, the thickness of the light guide device 12 can also be reduced, reducing the volume of the entire lamp and saving room space. The same secondary light source 141 also adopts LEDs, which can also achieve the purpose of reducing the volume of the entire lamp. And main light source 11 adopts the LED that can send out the color changeable light, changes color by external control, similarly, secondary light source 141 adopts the LED that can send out color variable light source, is subject to external control change color, when main light source 11 and secondary When the light source 141 adopts an LED with a variable color light source at the same time, different colors can be adjusted by receiving external control, or the color can be automatically changed over time.

It should be noted that the embodiments of the present utility model have better implementability, and are not intended to limit the present utility model in any form. Any person familiar with the field may use the technical content disclosed above to change or modify the equivalent effective Embodiments, as long as they do not deviate from the content of the technical solution of the utility model, any modifications or equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (11)

1. A lamp with a backlight, comprising at least one main light source, a lamp holder, a backlight device, a supporting part, The backlight device is fixed on the back of the lamp holder through the support member; It is characterized in that it also includes: a transparent light guide device, the light guiding device is fixed to the lamp holder, and The light guiding device and the at least one main light source are arranged on the side of the lamp holder. 2. The lamp with a backlight according to claim 1, wherein the backlight device is configured to emit a backlight and illuminate the backlight to the light guiding device. 3. The lamp with backlight according to claim 2, further comprising an installation base for fixing the lamp with backlight, the distance between the installation base and the lamp holder is greater than It is equal to 10cm. 4. The lamp with backlight according to claim 2, wherein the light guide device comprises a light guide plate and a transparent protective cover covering the light guide plate. 5. The lamp with backlight according to claim 4, wherein the transparent protective cover is frosted glass. 6. The lamp with backlight according to claim 5, wherein the light guiding device is in the shape of a ring. 7. The lamp with a backlight according to claim 6, wherein the backlight device is arranged around the support member. 8. The lamp with backlight according to claim 1, wherein the backlight device comprises: at least one secondary light source and a refraction device, the at least one secondary light source is fixed on the refraction device, and The refraction device is configured to uniformly project the light from the at least one secondary light source. 9. The lamp with backlight as claimed in claim 8, wherein the refraction device comprises a top surface of the refraction device, a reflection surface, a light exit surface, The top surface of the refracting device is provided with the at least one secondary light source; The reflective surface surrounds the outer periphery of the support member and is arranged between the top surface of the refraction device and the top surface of the lamp holder; The light exit surface is formed by extending from the outer edge of the top surface of the refracting device to the top surface of the lamp holder. 10. The lamp with backlight according to any one of claims 1-9, characterized in that, the at least one main light source and/or the at least one secondary light source are LEDs. 11. The lamp with backlight according to claim 10, characterized in that, the at least one main light source and/or the at least one secondary light source can emit light with variable color.