LED light-guiding lamp tube

Abstract

The invention relates to an LED light-guiding lamp tube which comprises a light guide tube, an LED lamp panel and a heat-radiating block. A cross section of the light guide tube is circular-ring-shaped or a part of the cross section is circular-ring-shaped, the LED lamp panel is arranged on a transverse section (5) or a longitudinal section (5') of the light guide tube, the LED light-emitting face faces the cross section and is in contact connection with the transverse section or the longitudinal section, the LED back side is connected with an aluminum substrate, and the aluminum substrate is in contact connection with an aluminum substrate connecting groove of a heat-radiating piece. The lengthening face of the longitudinal section passes through the axis of the light guide tube and coincides with the axis, the inner side wall face of the light guide tube is provided with light reflecting points and a light reflecting layer, the outer wall side wall of the light guide tube is provided with a subdued light layer, and the light reflecting layer and the subdued light layer are in contact connection with the light guide tube. The light reflecting points of the whole lamp tube scatter and emit light, the light-emitting area is large, light rays are even. In addition, the lamp tube wall is arc-shaped, a space is obviously saved compared with a plane lamp with the same area, and the light is irradiated toward the side of the lamp tube.

Description

technical field [0001] The invention relates to an LED light tube, in particular to an LED light guide tube. Background technique [0002] LED lamps are more and more popular due to energy saving. There are various LED lamps and LED lamp tubes on the market. The lamp bead is a point light source, and the area of ​​each local point light source is small and very bright, so it is very dazzling and brings serious discomfort to the user's eyes. Although some LED lamp tubes are covered with a layer of diffuser plate on the surface, they are not The light passing through the diffuser plate is still uneven, because the LED lamp beads inside the lamp tube emit light, without the feeling of the lamp tube wall emitting light, the light is not uniform enough, and this kind of lamp tube needs a large number of LED lamp beads to be set on the lamp board In order to achieve the required brightness, the production cost is high; there are also LED panel lights on the market. This kind of l...

AI Technical Summary

Problems solved by technology

[0002] LED lamps are more and more popular due to energy saving. There are various LED lamps and LED lamp tubes on the market. The lamp bead is a point light source, and the area of ​​each local point light source is small and very bright, so it is very dazzling and brings serious discomfort to the user's eyes. Although some LED lamp tubes are covered with a layer of diffuser plate on the surface, they are not The light passing through the diffuser plate is still uneven, because the LED lamp beads inside the lamp tube emit light, without the feeling of the lamp tube wall emitting light, the light is not uniform enough, and this kind of lamp tube needs a large number of LED lamp beads to be set on the lamp board In order to achieve the required brightness, the production cost is high; there are also LED panel lights on the market. This kind of light uses a flat light guide plate to install a luminous body on the side of the plate, and diffuses the light from the light guide plate into a surface light source through the light guide point.

This kind of flat light guides the light evenly and softly, but because this kind of flat light emits light through the flat plate, it is generally a small flat light, which is used as a decorative light. The flat light used as general lighting is not only inconvenient to install because of its large expansion area, but also The flat panel can only illuminate the irradiation area in front of the flat panel, and the light on the side is very weak, and cannot evenly illuminate the surroundings like a fluorescent tube, so the practical use is very limited; as for the lamp of the LED light guide tube, no such type has been found yet. product

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