Area source device and illuminating device

Abstract

The invention discloses an area source device, comprising a light guide plate and a number of point light sources, wherein the light guide plate includes an incoming light surface which is on the side of the light guide plate; a number of point light sources are installed adjacent to the incoming light surface of the light guide plate; a light filter is arranged between the point light sources and the incoming light surface. Because the light filter is arranged between the point light sources and the incoming light surface, the light filter can extract the useful light spectrum, change the colour temperature and increase the colour developing effect; because the filter is arranged on the incoming light surface of the light guide plate side, the material consumption and the cost of the light filter can be reduced, and the light performance of the area source device can be improved with low cost.

Description

technical field [0001] The invention relates to a surface light source device, in particular to an illuminating device with the surface light source device. Background technique [0002] In the traditional lighting field, incandescent lamps, fluorescent lamps and other light sources are used as light sources, which not only consume high power, generate a lot of heat, are easily broken, and are polluted by ultraviolet rays, but also easily cause pollution and harm to the environment. Later, people used energy-saving lamps to replace incandescent bulbs, which achieved remarkable results in energy saving and power saving. However, energy-saving lamps flickered severely, the light flickered unevenly, and their lifespan was short. In recent years, after LED has become the light source of new lighting, it has become more and more widely used in daily lighting. However, the existing side-emitting LED panel lights have the problem that the actual light output reduces the color rende...

AI Technical Summary

Problems solved by technology

[0002] In the traditional lighting field, incandescent lamps, fluorescent lamps and other light sources are used as light sources, which not only consume high power, generate a lot of heat, are easily broken, and are polluted by ultraviolet rays, but also easily cause pollution and harm to the environment.

Later, people used energy-saving lamps instead of incandescent bulbs, and achieved significant results in energy saving and power saving. However, energy-saving lamps flicker seriously, the light flickers unevenly, and their lifespan is short.

In recent years, after LED has become the light source of new lighting, it has become more and more widely used in daily lighting. However, the existing side-emitting LED panel lights have the problem that the actual light output reduces the color rendering. The reason is that the original color rendering is good. The LED light will be transmitted through the light guide plate for a long distance, and the components in the transparent plastic will reduce the quality of light color

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