Daylighting device and daylighting system

Patent metadata

Field	Value
Publication number	US-10393333-B2
Application number	US-201615580371-A
Country	US
Kind code	B2
Filing date	Jun 9, 2016
Priority date	Jun 9, 2015
Publication date	Aug 27, 2019
Grant date	Aug 27, 2019

Abstract

There is provided a daylighting device (10) installed to face window glass and including a daylighting member (40) having a light-transmissive base member and a plurality of light-transmissive daylighting units disposed adjacent to each other on at least one surface of the base member, and the daylighting member (40) includes a movable unit that moves such that the one surface of the base member follows a movement of the sun to turn toward an orientation of the sun.

First claim

The invention claimed is:

1. A daylighting device installed to face window glass, the daylighting device comprising:
at least one daylighting member including
a light-transmissive base member, and
a plurality of light-transmissive daylighting units disposed adjacent to each other in at least one surface of the light-transmissive base member,

at least one shielding member hanging down from the at least one daylighting member; and
a movable unit that moves such that the at least one surface follows a movement of the sun to turn toward an orientation of the sun,
wherein the at least one daylighting member has a first stripe shape along a first direction which is a vertical direction of the window glass, and
the at least one shielding member has a second stripe shape along the first direction,
wherein the at least one daylighting member is a plurality of daylighting members, and
the plurality of daylighting members is disposed continuously in a second direction perpendicular to the first direction,
wherein in a case in which a width of one of the plurality of daylighting members is w, an orientation of the sun with respect to the one of the plurality of daylighting members is ϕ, and a first distance between the plurality of daylighting members is l, l=w+w sin ϕ tan ϕ is satisfied.

2. The daylighting device according to claim 1 ,
wherein in a case in which a second distance between the plurality of daylighting members in a case where the plurality of daylighting members is disposed in parallel to the window glass is l 1 and a third distance between the plurality of daylighting members in a case where the plurality of daylighting members is disposed obliquely with respect to the window glass is l 2 , l 1 <l 2 is satisfied.

Assignees

• Sharp Kk

Inventors

• Yui Hideomi
• Kamada Tsuyoshi
• Kanno Toru
• Ueki Shun
• UEKI Tomoko

Classifications

• G02B5/00

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

• F24S50/80

  for controlling collection or absorption of solar radiation · CPC title

• E06B9/386

  Details of lamellae · CPC title

• F21V5/02 Primary

  of prismatic shape (F21V5/04 takes precedence) · CPC title

• F21S11/00 Primary

  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