JPH04314011A - Device for tracing solar light - Google Patents

Abstract

PURPOSE:To obtain a solar light tracing device for deflecting a reflector so as to be aligned with the position of the sun in the case of tracing solar light in a daytime and guide illuminating light from a light source to an objective position simultaneously with the automatic lighting of artificial illuminating light at night. CONSTITUTION:The solar light tracing device provided with the reflector for guiding solar light to a position which is not directly irradiated with solar light because the position is the back of a building or the like is also provided with plural control means 14, 15 for deflecting the reflector in accordance with the position of the sun in the daytime and deflecting the reflector so as to guide illuminating light to the objective position at night.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sunlight tracking device, and more particularly to a sunlight tracking device that can utilize artificial light at night in addition to daytime sunlight.

0003

[Prior Art] Conventionally, in order to guide sunlight to areas that are shaded by buildings, etc. and cannot be directly irradiated with sunlight, a reflecting mirror is used, and the reflecting mirror is rotated every moment to align it with the position of the sun. There is a sunlight tracking device that directs the reflected light of the sun to areas that are not exposed to sunlight.

[0004] As shown in FIGS. 2A, 2B and 3, this device has a vertical shaft 2 mounted on a machine frame 1 that is fixedly installed.
A rotating frame 3 is rotatably supported by the rotating frame 3, and a reflecting mirror 4 is rotatably supported by the rotating frame 3 by a horizontal shaft 5.
Calendar and clock unit 6 calculates the current month, day and time, solar calculation unit 7 calculates the position of the sun at that time, and if it is sunshine time, vertical and horizontal angle calculation unit 8 performs vertical rotation. The angle and the horizontal rotation angle are calculated, and based on these, the positioning unit 9 connects the vertical rotation angle detection device 10 and the horizontal rotation angle detection device 11 to the vertical rotation drive device 12,
A horizontal rotation drive device 13 is used to rotate the vertical axis 2 and the horizontal axis 5 to determine the angle of the reflecting mirror 4 to direct incident light a toward a target location as reflected light b.

[0005]

[Problems to be Solved by the Invention] However, conventional sunlight tracking devices can only be used during daytime hours when sunlight is shining, and cannot be used at all at night.

[0006] This invention was made in consideration of the above circumstances; daytime sunlight is tracked by deflecting a reflector according to the position of the sun, and at night, artificial lighting is automatically turned on and simultaneously tracked. An object of the present invention is to provide a sunlight tracking device that guides illumination light from a light source to a target location. [Structure of the invention]

[0007]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a sunlight tracking system equipped with a reflecting mirror for guiding sunlight to a place that is in the shade of a building or the like and is not directly irradiated with sunlight. The apparatus includes a control means for deflecting the reflecting mirror to follow the position of the sun during the day, and for deflecting the reflecting mirror to a position that guides the irradiated light to a target location during the night.

[0008]

[Operation] During the day, sunlight can be deflected to follow the position of the sun to guide it to the target location, and at night, artificial light can be used by deflecting it to guide it to the target location.
Light can be directed to areas where it is needed both during the day and at night.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the sunlight tracking device according to the present invention will be described below with reference to the accompanying drawings.

[0010] The configuration for reflecting sunlight and guiding it to the target location has the sunlight tracking device shown in FIGS. 2(A), (B) and FIG. As a means, as shown in FIG. 1, a lighting position storage section 14 and an automatic lighting device 15 are provided.

That is, the lighting signal from the automatic lighting device 15 is input into the vertical/horizontal rotation angle calculation unit 8 in place of the sun position, the vertical rotation angle and the horizontal rotation angle are calculated, and the result of this calculation is stored in the lighting position storage unit 14. The mounting angle of the reflector 4 is determined so that the reflected light of the illumination light reaches a position where the light from the artificial illumination lamp can be guided to the target location based on the memory signal from the artificial illumination lamp.

[0012] With this, after the illumination lamp is turned on at night, the artificial light from the illumination lamp can be guided to the target location and used, and the sunlight during the day and the artificial illumination light at night can be used. Both can be used effectively.

[0013]

[Effects of the Invention] As described above, according to the present invention, the sunlight tracking device, which was conventionally used only to guide daytime sunlight to the target location, can now be used to also guide artificial light such as lighting at night to the target location. Therefore, the utility value of the sunlight tracking device can be greatly increased.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a sunlight tracking device according to the present invention.

[Figure 2] (A) is a front view of a conventional solar tracking device, (B)
) is a sectional view taken along line X-X in FIG. 2(A).

FIG. 3 is a block diagram of a conventional solar tracking device.

[Explanation of symbols]

2 Vertical axis 4 Reflector 5 Horizontal axis 6 Calendar and clock section 7. Solar calculation department 8 Vertical horizontal angle calculation section 9 Positioning part 10 Vertical rotation angle detection device 11 Horizontal rotation angle detection device 12 Vertical rotation drive device 13 Horizontal rotation drive device 14. Lighting position storage unit 15 Automatic lighting device

Claims (1)

[Claims] [Claim 1] A sunlight tracking device equipped with a reflector for guiding sunlight to a place that is shaded by a building or the like and is not directly irradiated with sunlight, wherein the reflector is deflected to follow the position of the sun during the daytime. A sunlight tracking device characterized by comprising a control means for deflecting a reflecting mirror to a position where the irradiated light is guided to a target point at night.