About Underground solar lighting system
A tracking, concentrating system delivers collimated sunlight to core building spaces or underground. Distributing optics illuminate large areas glare free. Supplemental electric lighting may be added for periods of inadequate solar availability. © 2017 Optical Society of America
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About Underground solar lighting system video introduction
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6 FAQs about [Underground solar lighting system]
Can artificial light be used in underground space?
On the other hand, for the closed and deep underground space, the imitation of the natural lighting by an artificial light source may compensate the need for the natural light design. This involves the analysis of optics, human-caused efficacy, materials science and many other fields.
Why is natural light important in underground public space?
Among the underground public space environmental factors, natural light is a core element that has an impact on visual effect, streamlined guidance, physical and mental health, environmental atmosphere and even energy conservation.
Is integrated natural lighting a bottleneck for the underground public space?
In general, the integrated natural lighting design in the underground public space is a bottleneck to improve the underground space environment. New architectural design ideas integrated with scientific/technological inventions would be a major direction for the underground space sustainable development.
What is the function of underground space?
At present, the function of underground space/buildings involves subways, underground shopping malls and underground parking lots, providing impetus for public activities such as traffic, commercial, leisure and entertainment. While the development of underground space has a great value and potential, it still faces many challenges.
Why is daylighting important for energy-efficient underground structures?
In energy-efficient underground structures, daylighting can significantly help energy consumption reductions using electric light and can reduce the usage of other sources of lighting, which cannot fulfil the desired needs. Exposure to sunlight helps to improve the standard of lighting and quality of work.
What is HSL (hybrid solar lighting) system?
Such fibers have been realized, for example, in HSL (hybrid solar lighting) systems. It explains about Himawari solar lighting system. The uniqueness of the system was that the sunlight which was collected by the Fresnel lens was only clear and visual light into the optical fibres.


