A New Light Guide Lighting System Daylighting Cover

Abstract

The invention relates to a novel light guide illumination system lighting cover. The inner surface is provided with a peripheral refractive toothed structure with a Fresnel lens, the lighting cover is divided into an upper spherical body portion with large spherical radius and a lower spherical body portion with small spherical radius, vertical inclination angles of the refractive toothed structure in the upper spherical body portion are identical, and a non-uniform refractive toothed structure with the bottom sparse and the top dense is formed, vertical inclination angles of the refractive toothed structure in the lower spherical body portion are identical, and a non-uniform refractive toothed structure with the bottom sparse and the top dense is formed. Changes in solar altitude and azimuth are considered comprehensively, acquisition efficiency of scattered light and direct light is also taken into consideration, actual usage effect of the lighting cover is optimized greatly, and the lighting cover is higher in rigidity, attractive in appearance and easier to clean.

Description

technical field [0001] The invention relates to the field of light guide lighting equipment, in particular to a new light guide lighting system lighting cover. Background technique [0002] Photoconductive daylight lighting system is a non-electric lighting system advocated in recent years. Buildings using this system can directly use sunlight for indoor lighting during the day. The basic principle is to efficiently collect outdoor natural light through the daylighting cover and introduce it into the system for redistribution, and then transmit it through the light guide tube with high reflectivity, and then use the diffuser at the bottom to evenly and efficiently irradiate the natural light to any place that needs light , with significant advantages such as energy saving, health, safety and environmental protection. [0003] The daylighting cover is an important part of the light guide lighting system. It plays an important role in collecting light and protecting the light...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of daylighting cover for light guide lighting system to solve the problem that the existing daylighting cover does not consider the influence of the sun's altitude angle and azimuth angle on the lighting efficiency at different times during the day and cannot take into account the collection efficiency of scattered light and direct light.

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