Method and system for integrated utilization of light energy

Abstract

The invention relates to a method for integrated utilization of light energy, which comprises the following steps of: a) converging natural light through a light energy converging device; b) transmitting the converged natural light to a light energy integrating cavity; c) detecting light intensity in the integrating cavity through a sensor, and performing compensation through a power lighting device arranged in the integrating cavity when the light intensity is insufficient; and d) coupling the natural light in the light energy integrating cavity and power lighting into an input port of a light guide output unit, and transmitting to an application region through the light guide output unit. In the invention, the converged natural light and the power lighting are integrated in the light energy integrating cavity; when the natural light is insufficient, the power lighting is used for compensation, and the final output is light energy superposition of the natural light and the power lighting; the centralized light energy supply is adopted, and two sets of systems, namely a light guide system and a power system, are not required in the application region, thereby lowering the cost; and the relatively pure light energy is outputted to the application region, thereby being safer than the traditional power lighting system.

Description

technical field [0001] The invention relates to a light energy utilization method and system combining solar energy and other energy sources. Background technique [0002] In modern society, lighting, heating and cooling account for about 50% of the total commercial electricity consumption, of which lighting is about 25%, heating is about 14%, and cooling is about 11%. In order to reduce energy consumption and greenhouse gas emissions, many countries in the world are actively studying how to use green energy technology to solve the above energy problems. Solar energy is one of the key directions. [0003] Sunlight can provide lighting and heating at the same time. Appropriate intensity of natural light is the healthiest way of lighting for human beings. On a clear day, the daylight is full of sunlight and is a gratuitous source of clean light. However, modern buildings often only capture natural light through, for example, limited glass windows, due to the need to balanc...

AI Technical Summary

Problems solved by technology

[0009] 1. For each lighting unit, two systems of natural light collection and electric lighting are required, which makes it difficult to reduce the final lighting cost

[0010] 2. The mixed use of electricity and light energy in the application area may cause safety hazards, such as flammable and explosive areas, which may cause arcs and explosions

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