Daylighting system

Patent metadata

Field	Value
Publication number	US-10480736-B2
Application number	US-201615569732-A
Country	US
Kind code	B2
Filing date	Apr 26, 2016
Priority date	Apr 30, 2015
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A daylighting system ( 10 ) to be installed over an interior face ( 1001 a ) of a window pane ( 1001 ), the daylighting system ( 10 ) including: a light-transmitting device ( 20 ) to be disposed over an upper part of the interior face ( 1001 a ) of the window pane ( 1001 ); and a shading device ( 30 ) joined to the light-transmitting device ( 20 ) in such a manner as to be disposed over a lower part of the interior face ( 1001 a ) of the window pane ( 1001 ).

First claim

The invention claimed is:

1. A daylighting system to be installed to a window pane, the daylighting system comprising:
a light-transmitting device to be disposed over an upper part of an interior face of the window pane, and
a shading device joined to the light-transmitting device in such a manner as to be disposed over a lower part of the interior face,
wherein a first height of the light-transmitting device is smaller than a second height of the shading device, wherein
the light-transmitting device is made of a plurality of light-transmitting slats which are made of transparent material,
each of the plurality of light-transmitting slats has a first lengthwise direction,
each of the plurality of light-transmitting slats has a V-like shape when viewed in the first lengthwise direction,
a plurality of first protrusion portions having light-transmitting properties are arranged on one face of each of the plurality of light-transmitting slats, and
each of the plurality of first protrusion portions has a second lengthwise direction,
wherein the shading device is made of a plurality of shading slats which are made of opaque material.

2. The daylighting system according to claim 1 , the daylighting system further comprising:
a daylighting device disposed over the light-transmitting device.

3. The daylighting system according to claim 2 ,
wherein the daylighting device comprises:
a base member having light-transmitting properties; and
a plurality of second protrusion portions having light-transmitting properties, the plurality of second protrusion portions being disposed adjacent to each other on a face of the base member.

4. The daylighting system according to claim 2 , wherein the daylighting device is disposed over the interior face.

5. The daylighting system according to claim 2 ,
wherein the daylighting device is disposed inside the window pane between a first glass plate and a second glass plate over a light-incident face of the window pane.

6. The daylighting system according to claim 5 , the daylighting system further comprising:
a light-diffusion device configured to diffuse light over the daylighting device.

7. The daylighting system according to claim 1 ,
wherein the light-transmitting device is anisotropic with respect to light-diffusion in such a manner that the light-transmitting device is highly diffusive in horizontal directions.

8. The daylighting system according to claim 1 ,
wherein the light-transmitting device has at least one prismatic structure that changes a traveling direction of light vertically.

9. The daylighting system according to claim 8 ,
wherein the at least one prismatic structure comprises two or more types of prismatic structures in accordance with distance from a ceiling.

10. The daylighting system according to claim 1 ,
wherein the light-transmitting device comprises composite slats each in turn including:
a shading section over a face of the window pane; and
a light-transmitting section joined obliquely to the shading section.

11. The daylighting system according to claim 1 ,
wherein the light-transmitting device and the shading device are capable of being independently moved up/down over a face of the window pane.

12. The daylighting system according to claim 1 ,
wherein each of the plurality of light-transmitting slats are made of first and second flat plates, and
the plurality of first protrusion portions are arranged on one face of one of the first and second flat plates.

13. The daylighting system according to claim 12 ,
wherein the plurality of first protrusion portions are arranged such that the second lengthwise direction is perpendicular to the first lengthwise direction.

14. The daylighting system according to claim 12 ,
wherein the plurality of first protrusion portions are arranged such that the second lengthwise direction is parallel to the first lengthwise direction.

Assignees

• Sharp Kk

Inventors

• Nishinaka Shumpei
• Ueki Shun
• Kanno Toru
• Shinozaki Daisuke
• Yui Hideomi
• UEKI Tomoko
• Kamada Tsuyoshi
• Hoshino Atsuyuki

Classifications

• F21V11/04

  adjustable · CPC title

• E06B5/00

  Doors, windows, or like closures for special purposes {(insulated compound frames specially adapted for sliding doors or windows E06B3/26347)}; Border constructions therefor · CPC title

• G02B5/00

  Optical elements other than lenses (light guides G02B6/00; optical logic elements G02F3/00) · CPC title

• G02B5/04

  Prisms · CPC title

• F21S11/00

  Non-electric lighting devices or systems using daylight {(hybrid lighting devices combining artificial and natural light F21S19/00; roofs with sky-light opening E04D13/03; sun blinds for windows with means for redirecting light onto ceiling of a room E06B9/00; solar heat collectors F24S)} · CPC title