DAYLIGHTING DEVICE

• US 20180170012A1
• Filed: 06/22/2016
• Published: 06/21/2018
• Est. Priority Date: 06/24/2015
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: UEKI, SHUN, NISHINAKA, SHUMPEI, KANNO, TORU, SHINOZAKI, DAISUKE, KAMADA, TSUYOSHI
• Granted Patent: US 10,513,091 B2
• Time in Patent Office: Days
• CPC Class Codes: B32B 17/10009 characterized by the number, the constitution or treatment of glass sheets
• CPC Class Codes: B32B 17/1055 characterized by the resin layer, i.e. interlayer
• CPC Class Codes: C03C 27/06 Joining glass to glass by processes other than fusing fusing C03B23/20; units for use as elements for closing wall or like openings and comprising two or more parallel glass panes in spaced relationship, the panes being permanently secured together E06B3/66
• CPC Class Codes: C03C 4/0092 for glass with improved high visible transmittance, e.g. extra-clear glass
• CPC Class Codes: F21S 11/00 Non-electric lighting devices or systems using daylight roofs with sky-light opening E04D13/03; sun blinds for windows with means for redirecting light onto ceiling of a room E06B9/00; hybrid lighting devices combining artificial and natural light F21S19/00; solar heat collectors F24S; solar cells or solar cell modules H01L31/00
• CPC Class Codes: F21S 11/002 characterised by the means for collecting or concentrating the sunlight, e.g. parabolic reflectors or Fresnel lenses
• CPC Class Codes: F21S 11/007 characterised by the means for transmitting light into the interior of a building
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21V 3/04 characterised by materials, surface treatments or coatings
• CPC Class Codes: F21V 3/049 Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: G02B 5/0221 the surface having an irregular structure G02B5/0226 takes precedence
• CPC Class Codes: G02B 5/0278 used in transmission
• CPC Class Codes: G02B 5/0294 adapted to provide an additional optical effect, e.g. anti-reflection or filter
• CPC Class Codes: G02B 5/208 for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
• CPC Class Codes: G02B 6/0001 specially adapted for lighting devices or systems lighting or signalling on vehicles using light guides B60Q1/00; lighting devices for vehicle dashboards B60Q3/10; lighting devices for vehicle interior using light guides B60Q3/62; lighting devices mounted on the vehicle rear part using light guides F21S43/235; measuring arrangements having light conducting pointers G01D13/265; illumination of liquid crystal displays G02F1/1336; illuminated signs G09F13/00

Abstract

Provided is a daylighting device (10) that is used by being attached to a window frame (110) supporting an existing window glass (100) and that includes a first base (11) being light-transmissive, a first spacer (12) provided at an outer edge of one surface (11a) of the first base (11) and attached to the window frame (110), and a daylighting member (13) provided on a side of the one surface (11a) of the first base (11), in which the daylighting member (13) includes a second base (14) that is light-transmissive and a plurality of protrusion daylighting portions (15) that are light-transmissive and provided to be adjacent to each other on a side of one surface (14a) of the second base (14).

Claims

1. A daylighting device that is used by being attached to at least any one of an existing window glass and a window frame supporting the window glass, the daylighting device comprising:

a first base that is light-transmissive;

a first spacer that is provided at an outer edge of a surface of the first base, the surface of which faces the window glass, and that is attached to at least any one of the window glass and the window frame; and

a daylighting member that is provided on a side of the surface of the first base, the surface of which faces the window glass, wherein

the daylighting member includes a second base that is light-transmissive, and a plurality of protrusion daylighting portions that are light-transmissive and provided to be adjacent to each other on a side of a surface of the second base, the surface of which faces at least the window glass.

2. The daylighting device according to claim 1, wherein a Low-E film is formed between the first base and the daylighting member.

3. The daylighting device according to claim 2, wherein the Low-E film is covered with the daylighting member on the surface of the first base, the surface of which faces the window glass.

4. The daylighting device according to claim 2, wherein a gas barrier layer is stacked on a surface of the daylighting member, the surface of which faces the Low-E film.

5. The daylighting device according to claim 1, wherein a light scattering unit that scatters light in a direction vertical to an up-and-down direction of the window glass is provided at a position, at which the light scattering unit faces the daylighting member, on a side of a surface opposite to the surface of the first base, the surface of which faces the window glass.

6. The daylighting device according to claim 5, further comprising

a light scattering device that has a third base being light-transmissive, a second spacer provided at an outer edge of a surface of the third base, the surface of which faces the first base, and a light scattering unit, wherein

the light scattering device is attached, via the second spacer, to the surface opposite to the surface of the first base, the surface of which faces the window glass, so that the light scattering unit faces the first base.

7. The daylighting device according to claim 5, wherein

the light scattering unit is constituted by a fine unevenness formed on the surface opposite to the surface of the first base, the surface of which faces the window glass, and

the fine unevenness is formed along a direction that is an up-and-down direction of the first base when the first base is attached to at least any one of the window glass and the window frame via the first spacer.

8. The daylighting device according to claim 5, wherein

the light scattering unit is constituted by a plurality of convex lenses provided to be parallel and adjacent to each other on the surface opposite to the surface of the first base, the surface of which faces the window glass, and

the plurality of convex lenses are provided along a direction that is an up-and-down direction of the first base when the first base is attached to at least any one of the window glass and the window frame via the first spacer.