NATURAL LIGHTING APPARATUS FOR UNDERGROUND

The present invention relates to a natural lighting device for a basement, which receives natural light from the ground and irradiates the natural light to a basement. The natural lighting device for a basement comprises: a light receiving unit which is installed on the ground to receive natural lig...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LEE, SANG HYUN, LEE, HWA SIK, KIM, DUK HWAN, KANG, CHA NYEONG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING BUILDING FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS FIXED CONSTRUCTIONS FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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