Ultraviolet LED light homogenizing apparatus and application thereof

Abstract

The invention discloses an ultraviolet LED light homogenizing apparatus and application thereof. The ultraviolet LED light homogenizing apparatus comprises the following parts: a light homogenizing cup which is used for realizing light homogenizing effect, a light homogenizing cup first-level stair and a light homogenizing cup second-level stair which are arranged on an inner wall of the light homogenizing cup, a second-layer light homogenizing film which is arranged on the light homogenizing cup second-level stair so as to be used for realizing first-step light homogenizing, a first-layer light homogenizing film which is arranged on the light homogenizing cup first-level stair so as to be used for realizing second-step light homogenizing, an ultraviolet LED which is used as light source,and a aluminum substrate which is arranged at the bottom of the light homogenizing cup so as to be used for fixing the ultraviolet LED. The ultraviolet LED light homogenizing apparatus disclosed by the invention is small in work current, low in apparatus temperature, simple in implementation process, short in production cycle, feasible for application in the fields requiring ultraviolet LED lighthomogenization, and low in cost; and thus, the ultraviolet LED light homogenizing apparatus can be accepted by most manufacturers and applicable people.

Description

technical field [0001] The invention relates to the technical field of ultraviolet LED uniform light, in particular to an ultraviolet LED uniform light device and its application. Background technique [0002] With the continuous improvement of the light power of ultraviolet LED, it has been applied to many fields such as curing, medical treatment, and home appliances. However, because it is a point light source, the light emitted cannot be evenly irradiated on the required position, and the effect will be uneven. Qi, so people are working on the uniform light design of UV LEDs. Ultraviolet homogenization requirements: The material has strong ability to transmit ultraviolet rays, is resistant to irradiation, and is not easy to yellow and deform. However, UV LED homogenization is different from visible light or infrared. General materials such as homogenizing plates used for visible light cannot transmit ultraviolet rays. At present, the best UV-transmitting material on the ...

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Problems solved by technology

However, UV LED homogenization is different from visible light or infrared. General materials such as homogenizing plates used for visible light cannot transmit ultraviolet rays. At present, the best UV-transmitting material on the market is quartz glass. People design different structures through optics to roughen quartz. The surface and other methods can achieve the purpose of uniform light, but the cost of quartz is high, it is difficult to shape, and the production cycle is long. At the same time, as the thickness of the quartz increases, its ability to absorb ultraviolet rays becomes stronger and radiates less ultraviolet rays. In order to make up for the missing ultraviolet rays, it must Increase the working current of the LED to increase the light output rate. The temperature of the LED will continue to rise due to the increase of the current, and the performance of the ultraviolet LED will decrease. Therefore, the heat dissipation problem must be considered while studying the uniform light. Most of these complicated solutions only appear in the laboratory and cannot be used. Application landing, forming large-scale production

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