LED light-emitting module for remote visible light communication and fabrication method thereof

Abstract

The invention relates to the technical field of an LED light source technology, in particular relates to an LED light-emitting module for remote visible light communication and a fabrication method thereof. The LED light-emitting module comprises an LED substrate, a plurality of LED chips and an electrode and also comprises an optical bowl cup, a negative Fresnel small lens, a reflection cup and apositive Fresnel large lens, small illumination area, concentrated light output, uniform light emitting and high illumination of the LED light-emitting module are achieved, so that long-distance transmission of visible light emitted from the LED light-emitting module is achieved. According to the preparation method, reliable package of a high-cooling, large-power, small-angle, high-light efficiency and remote-communication LED light-emitting module is achieved by employing the LED substrate, the two optical lens, an LED flip chip cooling structure and an interconnection package process.

Description

technical field [0001] The invention relates to the technical field of LED light sources, in particular to an LED lighting module for long-distance visible light communication and a preparation method thereof. Background technique [0002] In recent years, outdoor visible light communication technology has received extensive attention, and outdoor visible light communication has a wide range of potential applications, such as outdoor intelligent transportation and other fields. [0003] However, compared with indoor visible light communication, outdoor visible light communication has problems such as no unified light signal, insufficient signal, insufficient optoelectronic power of visible light module, and the influence of diffuse reflection of LED light source. In the field of outdoor visible light communication technology, especially about visible light relay Information transmission, visible light emergency communication, etc., because the outdoor communication LED integ...

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Problems solved by technology

[0003] However, compared with indoor visible light communication, outdoor visible light communication has problems such as no unified light signal, insufficient signal, insufficient optoelectronic power of visible light module, and the influence of diffuse reflection of LED light source. In the field of outdoor visible light communication technology, especially about visible light relay Information transmission, visible light emergency communication, etc., because the outdoor communication LED integrated light source in the prior art uses a surface light source to emit light, resulting in insufficient optical power and large size, it cannot be treated as a general point light source, and it is difficult to meet high-power, very The emission module with a small luminous angle cannot meet the requirements of long-distance visible light communication light source emission modules.

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