Title:
LIGHT CONDENSING UNIT AND SUNLIGHT RECEIVING DEVICE
Document Type and Number:
Japanese Patent JP2019185944
Kind Code:
A
Abstract:
To provide a light condensing unit capable of efficiently condensing direct sunlight and scattered light from the whole sky, and to provide a sunlight receiving device using the same.SOLUTION: A light condensing unit includes: a spherical first lens 12 for receiving incident light; a plurality of second lenses for receiving light from the first lens 12; a light receiving part 18 for receiving emission light from the second lens; a first ellipsoid mirror 16a including a reflection surface comprising an ellipsoid surface for guiding the emission light from the second lenses to the light receiving part 18; and a second ellipsoid mirror 16b including a reflection surface comprising an ellipsoid surface for guiding the emission light from the second lenses to the light receiving part 18.SELECTED DRAWING: Figure 4
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Inventors:
USAMI HISANAO
ITO JIRO
ITO JIRO
Application Number:
JP2018073121A
Publication Date:
October 24, 2019
Filing Date:
April 05, 2018
Export Citation:
Assignee:
UNIV SHINSHU
International Classes:
F21S11/00; F21V5/04; F21V7/08; F21V7/09; F21V8/00; F21V13/04; F24S23/30; G02B3/00; G02B5/02; G02B5/08