JPS5838402A - Lighting unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a lighting device that illuminates a room by introducing sunlight into the room.

Prior Art Conventionally, this type of sampling device was disclosed in Japanese Patent Application Laid-Open No. 56-528.
As described in No. 01, a plurality of louver pieces are provided near the window, and the louver pieces emit and scatter sunlight onto the ceiling surface of the room, thereby illuminating the room. However, as shown in FIG. 4, during the time period when the sunlight enters the window 11 from an oblique direction, the sunlight reflected from the louver piece 12 is emitted only to a part of the ceiling surface, where it is scattered. The sun's rays could not illuminate the entire room.

OBJECTIVE OF THE INVENTION The object of the present invention is to provide a daylighting device that can always illuminate the entire interior of a room regardless of the irradiation angle of the sun by eliminating the drawbacks of the conventional daylighting devices as described in (1) above.

EXAMPLE Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a window provided on one side wall of a room 2, and a window glass 3 is provided.

4 is a vertical blind as a vertical louver provided inside the window glass 3, and each slat 6 as a louver piece moves in the left-right direction with respect to a support rail 5 fixed to the upper frame 1a of the window 1. Can be supported hanging. Furthermore, each slat 6 is rotatably provided around its hanging shaft so that its angle relative to the window glass 3 can be adjusted, and its surface is mirror-finished to reflect sunlight.

Reference numeral 7 denotes a horizontal blind as a horizontal louver provided inside the vertical blind 4. A ladder cord 9 is suspended and supported by a head box 8 which is also fixed to the upper frame 11L, and a louver piece is attached to the ladder cord 9. slats 10 are supported.

Each slat 10 connects the ladder cord 9 to the operating rod (N
(not shown), the angle relative to the window glass 3 can be adjusted, and its surface has a mirror finish (3) similar to the slats 6 of the vertical blind.

Now, to explain the operation of the daylighting device configured in this way, as shown in FIG.
Each slab I-6i is rotated so that it is perpendicular to the window crow 3 so that it does not interfere with the incident sunlight, and the slats 10 of the horizontal blind 7 are angled to the almost horizontal state shown in FIG. When adjusted, sunlight is reflected by the slabs I and 10 of the horizontal blind 7 and radiated onto the ceiling surface 2)L of the room 2. The entire room 2 is illuminated by the light scattered on the ceiling surface 2a.

In addition, during the time period when the sun's rays enter the window 1 from an oblique direction, the vertical blind 4
By adjusting the rotation of the slat 6, sunlight is reflected by the slat 6 so that it is perpendicular to the window glass 3 in the plane direction.

The light is then reflected (4) by the slats 10 of the horizontal blind 7 and radiated onto the ceiling surface 2a of the room 2, and the light scattered by the ceiling surface 2a illuminates the entire room 2.

In this way, this lighting device adjusts the angle of the slats 10 of the horizontal blind 7 during the day to direct sunlight into the room.
By radiating and scattering onto the ceiling surface 2a of the room,
Not only can the entire surface be irradiated, but the sun's rays can be
However, during the time period when sunlight is incident from an oblique direction, the angle of the slat 6 of the vertical blind 4 and the slab l-10 of the horizontal blind 7 are adjusted to direct the sunlight to the ceiling surface 2I of the room 2.
By emitting light to L and scattering it, the entire room can be illuminated without creating shadows.

In the above embodiment, each slat 6.10 of the vertical blind 4 and the horizontal blind 7 can be operated manually, but as the angle of incidence of sunlight changes, each slat I-
It is also possible to provide an automatic tracking device that automatically adjusts the angles of 6 and 10. Further, in the above embodiment, a vertical blind 4 is provided on the window 1 side, and a horizontal blind 7 is provided on the indoor 2 side.
are arranged, but this may be arranged in reverse.

Effects As detailed above, this invention provides the window 1 with the vertical louver 4 and the horizontal louver 7, and the louver pieces 6, 7 of the louvers 4, 7,
10 is provided so that its angle can be adjusted, it is possible to always illuminate the entire interior of the room regardless of the irradiation angle of the sun, making it an excellent invention as a daylighting device.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view showing a window embodying this invention;
FIG. 5 is a cross-sectional view thereof, and FIG. 4 is a cross-sectional view showing a conventional example related to the present invention. Window 1, vertical blind 4, horizontal blind 7, slat 6.10°

Claims (1)

[Claims] l A vertical louver (4) and a horizontal louver (7) are installed in the window (1), and the louver pieces (6) of the louvers (4) and (7),
(10) The lighting device is characterized in that the angle is adjustable. 2 The louver pieces (6) and (10) have their surfaces mirrored E1
A lighting device according to claim 1, characterized in that: 8 The vertical louver (4) has a horizontal louver (7) on the window (1) side.
The lighting device according to claim 1, wherein the lighting device is arranged on the indoor (2) side.