JPS6246923B2 - - Google Patents

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.

Conventional technology Conventionally, this type of sampling device was developed in Japanese Patent Application Laid-Open No.
As described in No. 52801, a plurality of louver pieces were installed near the window, and the louver pieces emitted sunlight onto the ceiling surface of the room and scattered it, 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.

Purpose This invention aims to solve the above-mentioned drawbacks of conventional daylighting devices and provide a daylighting device that can always illuminate the entire interior of a room regardless of the angle of irradiation of the sun.

Embodiment Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. Reference numeral 1 denotes a window provided on one side wall of an indoor room 2, and a window glass 3 is provided.
4 is a vertical blind serving as a vertical louver provided inside the window glass 3, and is attached to the upper frame 1a of the window 1.
Each slat 6 as a louver piece is suspended and supported so as to be movable in the left and right direction from a support rail 5 fixed to the support rail 5 . Further, each slat 6 is rotatably provided around a suspension axis so that its angle relative to the window glass 3 can be adjusted, and its surface is mirror-finished to reflect sunlight.

7 is a horizontal blind as a horizontal louver provided inside the vertical blind 4, and a ladder cord 9 is suspended and supported by a head box 8 which is also fixed to the upper frame 1a, and a louver piece is attached to the ladder cord 9. A slat 10 is supported. Each slat 10 is operated by operating the ladder cord 9 with an operating rod (not shown).
The angle can be adjusted with respect to the window glass 3, and
Its surface is mirror finished like the slats 6 of the vertical blind.

Now, to explain the function of the daylighting device configured in this way, as shown in FIG. By rotating the window so that it is perpendicular to the window glass 3 so that it does not interfere with the incident sunlight, and adjusting the angle of the slat 10 of the horizontal blind 7 to the almost horizontal position shown in FIG. The light beam is reflected by the slats 10 of the horizontal blind 7 and radiated onto the ceiling surface 2a 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 slats 6 of the vertical blind 4 can be rotated and adjusted as shown in FIG.
The slats 6 reflect sunlight at right angles to the window glass 3 in the plane direction.
The light is then reflected by the slats 10 of the horizontal blind 7 and radiated onto the ceiling surface 2a of the room 2, and the light scattered on the ceiling surface 2a illuminates the entire room 2.

In this manner, this lighting device can illuminate the entire surface of the room 2 during the day by adjusting the angle of the slats 10 of the horizontal blind 7 to radiate and scatter sunlight onto the ceiling surface 2a of the room 2. At the same time, during the time period when sunlight enters the window 1 from an oblique direction, the slats 6 of the vertical blind 4 and the slats 10 of the horizontal blind 7
By adjusting the angle and emitting sunlight onto the ceiling surface 2a of the room 2 and scattering it, the entire room can be irradiated without creating shadows.

In the above embodiment, each slat 6, 10 of the vertical blind 4 and the horizontal blind 7 requires manual operation, but the angle of each slat 6, 10 is automatically adjusted as the angle of incidence of sunlight changes. It is also possible to provide an automatic tracking device. Furthermore, in the above embodiment, a vertical blind 4 is provided on the window 1 side.
Although the horizontal blinds 7 are arranged on the indoor 2 side, they may be arranged in the opposite direction.

Effects As detailed above, the present invention provides the window 1 with the vertical louver 4 and the horizontal louver 7, and the louvers 4, 7
By providing the louver pieces 6 and 10 so that their angles can be adjusted, the entire interior of the room can always be illuminated with light regardless of the irradiation angle of the sun, making this invention an excellent lighting device.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing a window embodying the invention, FIGS. 2 and 3 are cross-sectional views thereof, and FIG.
The figure is a cross-sectional view showing a conventional example related to the present invention. Window 1, vertical blind 4, horizontal blind 7,
Slut 6,10.

Claims (1)

[Scope of Claims] 1. A lighting device characterized in that a window 1 is provided with a vertical louver 4 and a horizontal louver 7, and the louver pieces 6 and 10 of the louvers 4 and 7 are provided so that the angle thereof can be adjusted. 2. The lighting device according to claim 1, wherein the surfaces of the louver pieces 6 and 10 are mirror-finished. 3. The lighting device according to claim 1, wherein the vertical louver 4 is disposed on the window 1 side and the horizontal louver 7 is disposed on the indoor 2 side.