DAYLIGHTING APPARATUS WITH DUAL VENETIAN BLIND AND ITS INSTALLATION STRUCTURE INSIDE BUILDINGS SUCH AS CURTAIN WALL AND SPANDREL BETWEEN THE FLOORS

摘要

PURPOSE: A daylighting apparatus with a double venetian blind, a curtain wall inside a building thereof and a spandrel space establishment structure between floors are provided to include a light-collecting portion and a halo part, thereby simplifying a solar energy concentration structure. CONSTITUTION: A daylighting apparatus comprises a light-collecting portion (100), a light transformer part (200) and a halo part (300). The light-collecting portion comprises a first blind (110) and a second blind (120). The first blind includes multiple first blind blades (112) and is rotated corresponding to the change of the height of the sun and azimuth. The second blind comprises multiple second blind blades (122). The light transformer part (200) comprises a concave back mirror (220) and a convex back mirror (230). The concave back mirror includes a through hole (221) on the central part in order to have an entrance face with concave curvature. The convex back mirror is formed in order to have convex curvature. The halo part (300) includes a light pipe (310). And the light pipe is connected to the through hole and delivers sunlight passing through the light transformer part to the indoor.