JPH0434540Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a display device that is installed on the ceiling of a room to observe the positions and movements of celestial bodies.

[Prior Art] Conventionally, a simple constellation board made of paper or the like has existed as a teaching tool for displaying constellations. Planetariums also existed as large-scale, high-performance devices.

[Problems that the invention aims to solve] Among these, the constellation board as a teaching tool is something that is placed on a desk or the like and observed from above, which is far from the experience of looking up at the sky and seeing the celestial bodies. In addition, planetariums require a specialized darkroom with a dome and are extremely expensive, making them difficult to use in general households.

This invention aims to provide a celestial body display device that can be easily installed in the living room of a general household and also serves as a lighting device.

[Means for solving the problem] The celestial body display device of this invention is made of a non-transparent plate material, has a large number of small holes corresponding to the celestial bodies, and has these small holes on the bottom surface. It has a constellation disk on which constellation figures associated with the holes are drawn. The above small through hole is
It is desirable to have different hole diameters depending on the brightness of the celestial body. It is convenient that this constellation board can be electrically rotated by remote control.

A first light source such as a fluorescent lamp or an incandescent lamp is installed above the constellation board, and illuminates the constellation board from above. In addition to direct lighting, indirect lighting that is reflected by a canopy placed above the constellation board can also be used. When direct illumination is employed, it is desirable to arrange a scattering plate that scatters light between the first light source and the constellation disk.

A second light source such as a fluorescent lamp or an incandescent lamp is placed within a decorative edge provided at the lower end of the peripheral wall surrounding the constellation board, and illuminates the constellation board from diagonally below. The blinking of the first light source and the second light source can be controlled separately.

[Function] When only the first light source is turned on, the light can be seen through each small hole in the constellation board, so
These small holes look like celestial bodies shining in the night sky. By gradually rotating the constellation disk, you can observe from below how the celestial bodies rotate over time.

Next, when only the second light source is turned on, the bottom surface of the constellation disk is illuminated, so each small hole in the constellation disk can be observed as a sunspot, and at the same time, the constellation shapes drawn on it can be observed. . In this case as well, by gradually rotating the constellation disk, you can observe from below how the celestial bodies and constellations rotate over time.

Furthermore, by turning on both the first and second light sources at the same time, each small through hole can be observed as a bright spot, and at the same time, the constellation figure can also be observed.

Note that when the second light source is turned on, the interior of the room can be indirectly verified by the light reflected by the constellation board.

[Example] In FIGS. 1 and 2, 1 is an outer box, which includes a peripheral wall 2, a lid 3 closing the upper end of the peripheral wall 2, and an annular mounting seat 4 connected to the lower end of the peripheral wall 2. Become.
The lower surface of the canopy 3 is coated with, for example, a light gray paint that diffusely reflects light.

Large and small circle-type fluorescent lamps 5 and 6 are concentrically attached to the central part of the canopy 3, and below them a light scattering plate 7 is supported around the peripheral wall 2. A low-speed electric motor 8 is supported at the center of the canopy 3,
A rotating shaft 10 extending from this point through the center hole 9 of the scattering plate 7 is connected to a constellation disk 11 below the scattering plate 7.
supports the center. The constellation board 11 is a disc made of an opaque plate-like material, with small through holes 12, 12... bored in positions corresponding to the celestial bodies, and constellations on the bottom surface as shown in Figure 3. Figures 13, 13...
Or a picture is drawn. Below the constellation board 11, transparent plates 14 are stacked at a slight interval,
The transparent plate 14 is supported by the peripheral wall 2. transparent plate 1
4, a field of view display 15 shown in FIG. 3, lines and indicators indicating directions, etc. are drawn.

A fluorescent lamp 16 is provided on the mounting seat 4 of the outer box 1.

The above device can be installed by drilling a window hole 18 in the ceiling 17 of a room, fixing the mounting seat 4 of the outer box 1 on the edge of the hole, and attaching a decorative edge 19 to the edge of the hole. can. The decorative edge 19 is a fluorescent lamp 16
It has an upright portion 20 so that the light does not directly enter the eyes.

In the above-mentioned apparatus, when the fluorescent lamps 5 and 6 are turned on as shown in FIG. Evenly irradiated.
Therefore, when looking at the constellation board 11 from below, it looks like a celestial body shining in the night sky, and the small through holes 12, 12...
can be observed. Then, when the electric motor 8 is driven, the small through holes 12, 12, . . . appear to rotate gradually.

Next, when the fluorescent lamps 5 and 6 are turned off and the fluorescent lamp 16 is turned on as shown in FIG. 2, the constellation figures 13, 13... drawn on the constellation board 11 can be observed from below, and The interior of the room is indirectly illuminated by the light reflected from the constellation board 11. Then, when the electric motor 8 is driven, the constellation figures 13, 13, . . . appear to rotate gradually.

In addition, instead of the transparent plate 14, a light-shielding plate having a window hole of the same shape as the field of view display 15 may be installed above the star chart 11 in an unrotatable manner, in which case only celestial bodies that can be observed according to the season and time will be displayed.

[Effects of the invention] As described above, with this invention, celestial bodies can be displayed in a realistic manner with a relatively simple structure, and constellations can be displayed when the bottom surface of the constellation board is illuminated. Therefore, it is extremely convenient for teaching, and can also serve as interior decoration and lighting.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of this invention when displaying celestial bodies, FIG. 2 is a longitudinal sectional view of the embodiment when displaying constellations, and FIG. 3 is a bottom view of the constellation board of the embodiment. 5 and 6... Fluorescent lamp (first light source), 8... Low speed electric motor, 10... Rotating shaft, 11... Constellation board, 1
2...Small through hole, 13...Constellation figure, 16...Fluorescent lamp (second light source).

Claims (1)

[Scope of utility model registration request] A rotatable constellation disc is formed of a non-transparent plate-like material and has a large number of small holes corresponding to the celestial bodies, and the constellation figures related to these small holes are drawn on the lower surface. Above the board, an electric motor that rotates the constellation board and a first light source that can control blinking are provided, and a light source separate from the first light source is installed within a decorative rim provided at the lower edge of the peripheral wall surrounding the constellation board. An astronomical display device comprising a second light source whose blinking can be controlled and directed toward the lower surface of the constellation board.