Title:
NATURAL-LIGHT CAPTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/138770
Kind Code:
A1
Abstract:
Provided is a natural-light capturing device that can suppress glare on the outdoor side. The natural-light capturing device is provided with: a natural-light capturing member that brings incident outdoor light into a room interior; and an optical member that is provided on the incident side of the natural-light capturing member. The natural-light capturing member is provided with: a substrate which has a light transmissive property and to which the outdoor light is incident; and a natural-light capturing layer which is provided on the substrate and which has a plurality of natural-light capturing parts having a light transmissive property and low refractive index parts provided between the plurality of natural-light capturing parts. A portion of the outdoor light is reflected by the natural-light capturing member, enters the optical member as first light rays and exits therefrom as second light rays heading in the travel direction of the first light rays. The intensity of the second light rays is reduced relative to the intensity of the first light rays.
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Inventors:
NISHINAKA SHUMPEI
KANNO TORU
UEKI SHUN
KANNO TORU
UEKI SHUN
Application Number:
PCT/JP2018/045890
Publication Date:
July 18, 2019
Filing Date:
December 13, 2018
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
F21S11/00; E06B5/00; F21V3/00; F21V3/10; F21V11/02; F21V13/02; F21V13/12; F21V17/00; F21V17/02; F21V17/10
Domestic Patent References:
| WO2015174401A1 | 2015-11-19 |
Foreign References:
| JPH01310052A | 1989-12-14 |
Attorney, Agent or Firm:
INOUE Tomoya (JP)
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