Title:
太陽光入射構造
Document Type and Number:
Japanese Patent JP7057570
Kind Code:
B2
Abstract:
To set internal arrival light of incident sunlight in other seasons than winter, especially in summer to a pseudo-winter state, and to reduce variation of the internal arrival light over a year.SOLUTION: In a sunlight incidence structure which has a plurality of light incidence adjustment members 2 with mirror surface specifications arranged at a light collection part 1 in such a configuration that they position in the east and west directions respectively and in the north to south direction as a whole in plan view, each of the light incidence adjustment members 2 is arranged at an angle θ1 inclined upward to the south, and an east/west-directional opening part 6 is arranged as a light incidence optical path between an upper surface thereof and a lower surface of a north-adjacent light incidence adjustment member. The angle θ1 of inclination is so set that part D3 of incident sunlight in summer is reflected to above the light incidence adjustment members and does not impinge thereupon to cause a decrease in illuminance accompanying mirror reflection of the incident sunlight in summer on the upper surface and the lower surface and also to prevent mirror reflection of incident sunlight in winter from occurring.SELECTED DRAWING: Figure 1
More Like This:
| JP2008066133 | LIGHT COLLECTING METHOD AND BOARD |
| JPS52126242 | WINDOW LIGHTING DEVICE |
Inventors:
Hideo Arai
Application Number:
JP2019145401A
Publication Date:
April 20, 2022
Filing Date:
August 07, 2019
Export Citation:
Assignee:
Material House Co., Ltd.
International Classes:
F21S11/00; F21V7/09
Domestic Patent References:
| JP2013112950A | ||||
| JP2016157654A | ||||
| JP2010169981A |
Foreign References:
| WO2009025089A1 |
Attorney, Agent or Firm:
Haruyuki Tanaka