JP5581045B2 - Aurora generating device and aurora generating method - Google Patents

Description

  The present invention relates to an apparatus for artificially generating an aurora, and more particularly to an aurora generating apparatus and an aurora generating method improved to be suitable for an exhibition.

  As an early one of this kind of aurora generating device, there was an apparatus in which a curtain of light resembling an aurora was revealed by an optical device such as an optical fiber using an illumination light source. Thereafter, curtain-like light emission having a color close to that of an actual aurora was obtained using discharge light emission.

FIG. 10 is a perspective view schematically showing a configuration of a conventional aurora generator using simple vacuum discharge.
The sealed decompression chamber 1 is kept in a vacuum state of 3000 Pa or less by a vacuum pump (not shown). The rod-like positive electrode 2 extending in the X-axis direction and the plate-like negative electrode 3 in FIG. 10 are spaced apart from each other in the Z-axis direction, and a DC high voltage is applied between the positive electrode 2 and the negative electrode 3 by the power source 4. When applied, charged particles (electrons) generated by the discharge between the negative electrode 3 and the positive electrode 2 collide with gas molecules to generate light emission 5. However, this light emission is in a state of being widely diffused inside the decompression chamber 1 like the light emission of a fluorescent lamp, and is not satisfactory for use as an exhibition to reproduce the aurora.
The vacuum state used in the present invention is not a complete vacuum (0 Pa) but means a sufficiently low atmospheric pressure as compared to the atmospheric pressure. It is known that the color of discharge light emission varies depending on the type of gas sealed in the vacuum discharge space.

  FIG. 11 shows a conventional example of an aurora generating device improved to make light emission by plasma discharge of FIG. 10 into an aurora shape. The aurora generating device shown in FIG. 11 is provided with a coil C made of a transparent material that winds the outer periphery of the decompression chamber 1 in the horizontal direction in addition to the configuration of FIG. A magnetic field having magnetic field lines m in the Z-axis direction from the bottom to the top is generated. Then, by generating a magnetic field in the decompression chamber 1 by the coil C, the diffused light emission becomes the curtain-like light emission 6 directed from the bottom to the top by the magnetic lines of force m. However, since the magnetic field generated by the coil C includes a curved magnetic field line m ′ in addition to the linear magnetic field line m, the curtain-like light emission 6 in the vicinity of the positive electrode 2 has a thick shape in which discharge light emission diffuses. I had to be.

FIG. 12 shows a conventional example of an aurora generating device that is further improved so that the curtain-like light emission of FIG. In the decompression chamber 1, a positive electrode 2, a negative electrode 3, and a main coil 19 that winds the outer periphery of the decompression chamber 1 in the horizontal direction to generate a magnetic field line m in the Z-axis direction from bottom to top are provided. A plurality of rows (three in this embodiment) of deflection coils 7 made of a transparent material that generates magnetic force lines M in the Y-axis direction are provided on the front surface of the decompression chamber 1 facing the viewer 18.
Light emission between the positive electrode 2 and the negative electrode 3 becomes a curtain shape by the main coil 19. Among the three rows of deflection coils 7, the first and third deflection coils 7 from the top generate a magnetic field line M toward the front of the decompression chamber 1 on the side of the viewer 18, and the second deflection coil 7 is directed to the reverse back surface. Magnetic field lines M ′ are generated. As a result, the above-described curtain-like light emission is bent in the XZ plane so as to undulate from the bottom by being attracted in the Y-axis direction by the magnetic force lines M or repelled by the magnetic force lines M ′. That is, curtain light emission is attracted in the Y direction by the magnetic force lines M in the arrow Y direction, and curtain light emission is repelled in the Y ′ direction by the magnetic force lines M ′ in the arrow Y ′ direction. Thus, the corrugated curtain light emission 8 is formed.

FIG. 13 shows a modified example in which the negative electrode is formed in a curved line on the XY plane and the curved shape is changed with time.
The example shown in FIG. 13A shows a linear electrode having flexibility in which the shape can be changed, and a plurality of negative electrodes 35 arranged along the X axis are driven in the Y axis direction. A cylinder S is attached, and the linear negative electrode 35 is bent into a waveform in the XY plane by moving the cylinder S back and forth.
Similarly, the example shown in FIG. 13B shows an XY array electrode group 36 in which dot-like electrodes are arranged in a matrix on the XY plane. In the XY array electrode group 36 by a control device (not shown). The conductive part to be an electrode is set in a linear shape, and the electrode composed of the linear conductive part is moved like a wave with time.

  FIG. 14A shows a conventional example of an aurora generating apparatus using a flexible linear negative electrode 35 shown in FIG. 13A, and aurora generation using an XY array electrode group 36 shown in FIG. 13B. A conventional example of the apparatus is shown in FIG. 14A and 14B both generate the corrugated curtain-like light emission 8 by moving the negative electrode like a wave.

International Publication No. 07/010947 Pamphlet

  However, since the artificial aurora generated by the conventional aurora generating device shown in FIG. 12 is a curtain of light with no change, the corrugated curtain-like light emission 8 viewed from the viewer 18 is stretched between the upper and lower electrodes. It was unnatural compared to the actual aurora.

  An object of the present invention is to provide an aurora generating device and an aurora generating method capable of generating curtain-like light emission rich in change that makes an actual aurora approaching to envelop a viewer.

An aurora is when charged particles (plasma) that reach the vicinity of the Earth by the solar wind gather at the pole along the Earth's magnetic field, collide with surrounding gas molecules, and produce excitation energy, which is then emitted. In addition, this phenomenon is observed as a result of the generation of visible light having a wavelength corresponding to the intrinsic spectrum of atoms constituting the gas molecule.
The present invention is a device that mechanically reproduces this aurora phenomenon, and its principle will be described with reference to FIG.
A negative electrode 21 and a positive electrode 22 are disposed opposite to each other in the horizontal direction and parallel to the lower side of the decompression chamber 1 that has been decompressed to 1000 Pa or less by a vacuum suction means (not shown). Apply high voltage DC voltage. Further, a coil (not shown) is provided in parallel with the direction in which both electrodes are opposed to generate a strong magnetic field M. Charged particles (electrons) generated by the discharge between both electrodes are affected by the magnetic field M and receive a Lorentz force perpendicular to the traveling direction. Since this Lorentz force does not work, the charged particle moves circularly, but the velocity vector of the charged particle also includes a component in the magnetic field direction, so that the charged particle eventually moves while drawing a spiral along the magnetic field M. . On the other hand, in the decompression chamber 1 in which gas molecules are enclosed, the charged particles collide with atoms constituting these gas molecules to bring about excitation energy. This excitation energy is diffused in a short time, and at that time, visible light having a wavelength corresponding to the intrinsic spectrum of the atom is generated. Then, depending on the type of gas to be sealed, light of a different color, that is, curtain-like light emission 6 that reproduces the aurora is generated.
The flow of charged particles (electrons) from the negative electrode 21 to the positive electrode 22 extends upward by the magnetic field M to generate curtain-like light emission 6, the tip of which is curved in the direction of the magnetic field M, and the charged particles (electrons) The tip loses excitation energy and reaches the positive electrode 22 without generating visible light. In the present invention, since curtain light emission extends from the negative electrode, the negative electrode is also referred to as a light-emitting electrode in the present invention.

The aurora generating device of the present invention is provided in a decompression chamber having at least one transparent surface, in which one or more kinds of gases are enclosed while the inside is maintained in a predetermined vacuum state. A linear negative electrode and a positive electrode to which a DC voltage is applied, and a magnetic field generating means for generating a magnetic field that acts on charged particles generated by a discharge between the negative electrode and the positive electrode, and the magnetic field generated by the magnetic field generating means The charged particle flow is deflected toward the transparent surface to generate visible light having a wavelength corresponding to the natural spectrum of the gas.
According to the aurora generating device of the present invention, the emission of visible light extending from the negative electrode is deflected toward the transparent surface of the decompression chamber, and the transparent surface is directed toward the viewer so that the tip of the light emission is directed. Light emission like an actual aurora is obtained.

In the aurora generating device according to the present invention, the magnetic field generating means is a coil disposed around the transparent surface of the decompression chamber, and the coil generates a magnetic field from the inside of the decompression chamber toward the transparent surface. It is characterized by that.
According to this, since the coil for generating the magnetic field is disposed around the transparent surface of the decompression chamber, the viewer does not visually recognize the coil, and between the viewer and the light emission, the electrode, the coil, etc. There is no sense of incongruity, and it is possible to view light emission similar to an actual aurora.

The aurora generating device of the present invention is characterized in that a transparent surface of the decompression chamber is opposed to a viewer.
As a result, the transparent surface of the decompression chamber faces the front of the viewer so that the viewer can see the light emission in front of him or the transparent surface of the decompression chamber is located above the viewer's head and looks up the light emission directly above. In addition, since the tip of the light emission extending from the negative electrode is directed toward the viewer, the viewer can view the light emission similar to an actual aurora.

The aurora generating device of the present invention is characterized in that the negative electrode is a member having flexibility, and rocking means for rocking the negative electrode by applying vibration is provided.
When the swinging means swings the negative electrode, the light emitted from the negative electrode changes so as to wave, and light emission similar to an actual aurora is obtained.

The aurora generating device of the present invention is characterized in that a dielectric that blocks the flow of charged particles from the negative electrode is disposed in the decompression chamber.
The aurora generating device of the present invention can make light emission more complicated by interrupting light emission extending from the negative electrode at the dielectric portion and freely cutting off the front end of the light emission.

The aurora generating device of the present invention is characterized in that the dielectric is disposed to be inclined with respect to the transparent surface of the decompression chamber.
The dielectric is inclined, and the light emission tip is cut off obliquely, so that the light emission has a complicated shape.

The aurora generating device of the present invention is characterized in that the dielectric is moved or rotated with respect to the transparent surface of the decompression chamber.
As the dielectric moves or rotates, the shape of the cut end of the light emission changes in a complicated manner, and light emission close to the actual aurora occurs.

The aurora generating device of the present invention is characterized in that the gas is at least one gas selected from the group consisting of helium, oxygen, carbon dioxide, nitrogen, argon and neon.
Thereby, the color of light emission can be changed according to the kind of gas enclosed in the decompression chamber.

The aurora generating device of the present invention is characterized by comprising gas release means for selecting the gas, mixing the gas, or selecting and mixing the gas over time.
The gas discharge means appropriately combines gas selection and gas mixing and changes over time, so that the effect of selecting the color of light emission or sequentially changing the color of light emission can be obtained.

Further, the aurora generating device of the present invention comprises a gas discharge by the gas discharge means, a magnetic field generation means for generating a magnetic field for deflecting charged particles, and a drive of a dielectric that blocks the flow of charged particles. Control means for controlling is provided.
By using the control means to correlate the color change of the light emission and the shape change of the light emitting surface, light emission like an actual aurora can be generated.

The aurora generation method of the present invention is a linear shape in which a DC voltage is applied to a decompression chamber having at least one transparent surface and enclosing one or more kinds of gases while keeping the inside in a predetermined vacuum state. The discharge between the negative electrode and the positive electrode is performed by a magnetic field generating means for generating a magnetic field from the inside of the vacuum chamber toward the transparent surface by a coil disposed around the transparent surface of the vacuum chamber. A magnetic field is caused to act on the charged particles generated by the above, and the flow of the charged particles is deflected toward the transparent surface by the magnetic field generating means to generate visible light having a wavelength corresponding to the natural spectrum of the gas. And
According to the aurora generation method of the present invention, the emission of visible light extending from the negative electrode is deflected toward the transparent surface of the decompression chamber, and the transparent surface is directed toward the viewer so that the tip of the light emission is directed. Light emission like an actual aurora is obtained.

It is explanatory drawing of the 1st Example of the aurora generator of this invention. It is explanatory drawing of the 2nd Example of the aurora generator of this invention. It is a schematic diagram which shows the state which controls the length (stretching direction length) which curtain-like light emission in this invention extends | stretches with an acrylic board. It is a schematic diagram which shows the state which controls the extending | stretching direction length of curtain light emission different from the above. It is a schematic diagram which shows the state which controls the extending | stretching direction length of curtain-like light emission further different from the above. It is a schematic diagram which shows the component part for changing the shape of curtain light emission in the aurora generator of this invention. It is a schematic diagram which shows the component for changing the color of curtain light emission in the aurora generator of this invention. It is a general | schematic system diagram which shows the control system of the main equipment in the aurora generator of this invention. It is a detailed schematic diagram which shows the component for changing the color of curtain light emission in the aurora generator of this invention. It is a general | schematic schematic diagram explaining the well-known technique of vacuum discharge light emission. It is a schematic diagram which shows the well-known technique which makes vacuum discharge light emission curtain. It is a schematic diagram which shows the well-known technique which makes the vacuum discharge light emission the curved curtain shape. It is a schematic diagram which shows the drive means in the well-known technique made into the curtain form which deform | transforms vacuum discharge light emission into a waveform. It is a schematic diagram which shows the well-known technique made into the curtain shape which deform | transforms vacuum discharge light emission into a waveform. 1 is a schematic diagram illustrating the principle of the present invention.

FIG. 1 is a schematic perspective view showing a first embodiment of the present invention.
A rod-shaped negative electrode 21 and a positive electrode 22 are arranged substantially in parallel in the upper part of the decompression chamber 1 disposed above the viewer 18, and a high DC voltage is applied between the negative electrode 21 and the positive electrode 22 by the power supply 4. Has been. A lower surface facing the viewer 18 in the decompression chamber 1 is a transparent wall surface 1a, and a main coil 19 for generating a magnetic field M is disposed around the transparent wall 1a. The direction of the magnetic field (lines of magnetic force) M is the direction from the top to the bottom of FIG.

  The flow of charged particles (electrons) due to the discharge from the negative electrode 21 to the positive electrode 22 is bent downward by the magnetic field M, and the plasma emission by the charged particles (electrons) extends from the negative electrode 21 above to the curtain-like light emission. 24 and comes to the viewer 18.

  The viewer 18 looks at the curtain-like light emission 6 through the transparent wall 1a, and feels like the curtain light-emitting 6 is directed toward him like an actual aurora.

FIG. 2 shows a second embodiment of the device according to the present invention, in which a rod-like negative electrode 21 and a positive electrode 22 are arranged in parallel in the lower part of the decompression chamber 1, and a DC high voltage is applied between both electrodes by a power source 4. Applied. In addition, the front surface of the decompression chamber 1 facing the viewer 18 is a transparent wall surface 1a, and a magnetic field M in a direction in which charged particles are attracted, that is, a direction from the rear to the front in FIG. A main coil 19 to be generated is disposed.
In addition to the main coil 19, another coil 20 may be provided on the rear surface of the decompression chamber 1, and the magnetic field M may be generated by generating a magnetic field in a direction repelling charged particles. Either one or both of the main coil 19 and the other coil 20 may be disposed.

  The viewer 18 can see the curtain-like light emission 6 through the transparent wall 1a. Moreover, since the curtain-like light emission 6 is curved from below and appears to come to the viewer 18, the viewer 18 can obtain a realistic presence that is wrapped in nature, and a great exhibition. An effect is obtained.

Next, a curtain-like light emission control technique in the aurora generating device will be described.
FIG. 3A is a schematic diagram in which the negative electrode 21, the positive electrode 22, the curtain light emission 6, and the main coil 19 are extracted from FIG. The curtain-like light emission 6 is emitted from the negative electrode 21 and extends in the vertical direction toward the main coil 19.
As shown in FIG. 3B, when an acrylic plate 34 that is a dielectric is inserted in the middle of the curtain-like light emission 6, the curtain-like light emission 6 is blocked by the acrylic plate 34. That is, the shadowed portion of the acrylic plate 34 as seen from the negative electrode 21 in the curtain-like light emission 6 disappears. The same effect can be obtained even with a dielectric other than an acrylic plate, that is, an electrical insulator. In this case, the acrylic plate 34 is preferably transparent, but it is not necessarily a plate material.

  As shown in FIG. 3C, when the two acrylic plates 34a and 34b are inserted in the middle of the curtain-like light emission 6 with a step, the curtain-like light emission 6 can be made into a more complicated shape. Further, by forming irregularities on the edge of the acrylic plate 34, the curtain-like light emission 6 can be made more complicated. And if the acrylic board 34a and the acrylic board 34b are moved up and down, right and left, the shape of the curtain-like light emission 6 can be changed with the movement.

FIG. 4 shows still another embodiment of the aurora generating device. A corrugated negative electrode 21 and a positive electrode 22 are provided above a decompression chamber (not shown), and a high DC voltage is applied between the two electrodes. An acrylic plate 34, which is a transparent dielectric, is disposed obliquely so as to block the corrugated curtain-like light emission 8 extending from the negative electrode 21.
In this example, the corrugated curtain-like light emission 8 is formed in the vertical direction, that is, the Z-axis direction, and a plane H that is an XY plane orthogonal to the Z-axis is set. The acrylic plate 34 is inclined with respect to the surface H by an angle θ. By this acrylic plate 34, the lower part of the corrugated curtain light emission 8 is cut off obliquely.
Then, as shown in FIG. 4B, by moving the acrylic plate 34 in the Y direction of the arrow F, the lower part of the corrugated curtain light emission 8 is contracted, and by moving the acrylic plate 34 in the direction opposite to the arrow F, The lower part of the corrugated curtain light emission 8 appears to extend.

FIG. 5 shows an embodiment different from FIG. 4, and FIG. 5 (A) shows the same state as FIG. 4 (A). Then, when the acrylic plate 34 is rotated around the χ axis parallel to the X axis so that the angle θ at which the acrylic plate 34 is inclined with respect to the surface H is increased to the angle φ, as shown in FIG. The angle of the lower part of the curtain-like light emission 8 becomes sharp.
Although illustration is omitted, there are various other ways of moving the acrylic plate 34. By moving a plurality of non-flat acrylic plates by various methods, the corrugated curtain light emission can be brought into a state where an actual aurora dances.
The actual observation of aurora is influenced by changes in climate and weather, and it is said that sufficient observation is not possible unless you are lucky. However, according to the present invention, it is possible to experience the aurora safely and comfortably without being disturbed by the climate and weather.

The example shown in FIG. 6 is an embodiment for changing the corrugated curtain light emission of the aurora generating device.
As shown in FIG. 6A, the rotating shaft 10 of the motor 44 is provided with a flexible negative electrode 12. When the rotation axis 10 of the motor 44 is alternately rotated forward and reverse at a slight angle, as shown in FIG. 6B, the negative electrode 12 is deformed so as to wave, thereby changing the shape of the corrugated curtain light emission. It can be changed to wave.
In the embodiment of FIG. 6C, the flexible negative electrode 35 is suspended from the swing beam 46 by a large number of springs 41. When the swing beam 46 is driven by the two synchronous motors 44a and 44b via the crank arm 44c, the negative electrode 35 swings and bends in a complicated manner. The light emitted from the negative electrode 35 changes in a complicated manner.

FIG. 7 is a schematic diagram for explaining the principle of the color tone control mechanism in the aurora generating apparatus according to the present invention.
It is well known that various colors depending on the type of gas appear by filling a vacuum with a rare gas in the decompression chamber 1. However, in order to further improve the color tone, the present invention provides a plurality of types. The gas is mixed and sent into the decompression chamber 1.
A positive electrode 2 and a negative electrode 3 are arranged opposite to each other in a decompression chamber 1 provided with a main coil 19 around a transparent front surface, and a vacuum suction means 26 evacuates the interior of the decompression chamber 1 through a vacuum suction tube 31. Put it in a state.

Then, two gas supply pipes 30 a and 30 b are connected to the decompression chamber 1. For example, when helium gas is injected into the decompression chamber 1 from the gas supply pipe 30a and neon gas from the gas supply pipe 30b, the flesh-colored curtain-like light emission 6 extends upward from the negative electrode 3.
Further, when oxygen gas and helium gas are injected into the decompression chamber 1, yellow-green curtain-like light emission 6 is generated, and when helium gas and carbon dioxide gas are injected, blue-white curtain-like light emission 6 is generated, and oxygen gas and argon are emitted. When the gas is injected, white curtain-like light emission 6 is generated.

The emission color of vacuum discharge is known to vary depending on the gas to be enclosed. For example, helium gas alone is green, oxygen gas alone is yellow, carbon dioxide gas alone is blue-violet, argon gas alone is orange, neon gas alone is pink It becomes. According to the present embodiment, by mixing a plurality of gases, it is possible to freely obtain light emission colors of all colors.
Conventionally, the color of discharge light emission by a composite gas in a vacuum state has been studied. However, this is only an industrial production level, and it is not yet known as a technique for coloring curtain-like light emission by discharge light emission to an actual aurora and coloring it in an arbitrary color tone.

FIG. 8 is a system diagram depicting the main components of the aurora generator according to the present invention.
A main coil 19 is provided in the decompression chamber 1, and a negative electrode 3 that functions as a light emitting electrode and a positive electrode 2 that functions as an auxiliary electrode are provided with a discharge space therebetween. Then, a gas for obtaining a luminescent color is injected from the gas supply unit 27 into the decompression chamber 1 maintained in an appropriate vacuum state (for example, 1 to 4 Pa) by the vacuum suction means 26.
A current for generating a magnetic field is applied from the power source 29 to the main coil 19, and a high DC voltage is applied between the positive electrode 2 and the negative electrode 3 from the power source 29. Reference numeral 28 designates the vacuum suction means 26, the gas supply unit 27, the power source 29, and in addition to these, the motor 44 and the dielectric acrylic plate 34 are tilted, rotated and moved in a comprehensive manner. This is a control unit that can be controlled.

A more detailed technique will be described below with respect to the above-described emission color by mixing gases.
When directing the artificial aurora device to the exhibition, if you want to change the emission color to two colors, or if you want half of one curtain-like emission to be green with helium gas and the other half to be reddish purple with nitrogen gas There is. However, some gas atoms are easily ionized or difficult to ionize, and it is difficult to neatly divide the light emission into two colors. That is, since the nitrogen atoms are large, they are easily ionized because they are subjected to collisions with a large number of electrons, whereas the helium atoms are small and are difficult to ionize because they are only subjected to collisions with a small number of electrons.

Therefore, by releasing a gas that is not easily ionized to a location close to the negative electrode 21 and a gas that is easily ionized to a location far from the negative electrode 21, the charged particles (electrons) collide with gas molecules evenly to bring about excitation energy. .
As shown in FIG. 9, a negative electrode 21, a positive electrode 22, and a main coil (not shown) are provided in the decompression chamber 1, and the interior of the decompression chamber 1 is maintained in a predetermined vacuum state by a vacuum suction means 26. The gas supply unit 27 stores various coloring gases, and a desired type of gas is supplied into the decompression chamber 1 by the gas switching unit 32.

Two gas supply pipes 30 a and 30 b are connected between the gas switching unit 32 and the decompression chamber 1. One gas supply pipe 30a is opened at a location away from the negative electrode 21, and the other gas supply pipe 30b is connected to a gas supply manifold (manifold) 45 having a number of gas ejection holes 45a to 45f to supply gas. The manifold 45 is disposed in the vicinity of the negative electrode 21.
The gas switching unit 32 sends nitrogen gas that is easily ionized to the central portion of the decompression chamber 1 separated from the negative electrode 21 by the gas supply pipe 30 a, and helium gas that is difficult to ionize from the gas supply manifold 45 to the vicinity of the negative electrode 21. To send. Thereby, the curtain-like light emission (not shown) extending from the negative electrode 21 is colored green with helium gas at the base end side, and reddish purple with nitrogen gas near the tip.

When the aurora generating device of the present invention having the above-described configuration is applied to an actual exhibition, as shown in FIGS. 1 and 2, the curtain light emission is directed toward the viewer, and FIGS. As shown, the tip of the curtain light emission is shaped, the curtain light emission is waved as shown in FIGS. 6 and 13, and the curtain light emission is colored in multiple colors as shown in FIG. .
The control unit 28 depicted in FIG. 8 changes the curtain-shaped light emission tip shape, the undulation due to the bending of the light-emitting surface, and the multicolored color of the light emission according to the music flowing in the field, thereby changing the curtain. It is possible to effectively produce a light emission like an aurora.

  The aurora generating device and the aurora generating method of the present invention can be usefully used in the industry for manufacturing scientific experience equipment used for exhibitions and the like.

DESCRIPTION OF SYMBOLS 1 ... Decompression chamber 1a ... Transparent wall surface 2 ... Positive electrode 3 ... Negative electrode 4 ... Power supply 5 ... Irregular light emission 6 ... Curtain-like light emission 7 ... Deflection coil 8 ... Waveform curtain-like light emission 10 ... Rotating shaft 12 ... Negative electrode 18 ... Visitor DESCRIPTION OF SYMBOLS 19 ... Main coil 21 ... Negative electrode 22 ... Positive electrode 24 ... Curtain-like light emission 26 ... Vacuum suction means 27 ... Gas supply part 28 ... Control part 31 ... Vacuum suction pipe 32 ... Gas switching part 34 ... Acrylic board 35 ... Negative electrode 36 ... XY arrangement Electrode group 41 ... Spring 44 ... Motor 45 ... Gas supply manifold 46 ... Oscillating beam

Claims (10)

A decompression chamber having at least one transparent surface and enclosing one or more kinds of gases while maintaining a predetermined vacuum state inside;
A linear negative electrode and a positive electrode that are installed in the decompression chamber and to which a DC voltage is applied;
Magnetic field generating means for generating a magnetic field acting on charged particles generated by discharge between the negative electrode and the positive electrode,
The magnetic field generating means is a coil disposed around a transparent surface of the decompression chamber,
The coil generates a magnetic field from the interior of the decompression chamber toward the transparent surface, thereby deflecting the flow of the charged particles toward the transparent surface, and visible light having a wavelength corresponding to the natural spectrum of the gas. An aurora generating device characterized by producing The aurora generating device according to claim 1 , wherein a transparent surface of the decompression chamber faces a viewer. The aurora generating device according to claim 1 , wherein the negative electrode is made of a flexible member, and includes swinging means for swinging the negative electrode by applying vibration.   The aurora generating device according to claim 1, wherein a dielectric that blocks a flow of charged particles from the negative electrode is disposed in the decompression chamber. The aurora generating device according to claim 4 , wherein the dielectric is disposed to be inclined with respect to a transparent surface of the decompression chamber. The aurora generating device according to claim 4 , wherein the dielectric moves or rotates with respect to a transparent surface of the decompression chamber.   The aurora generator according to claim 1, wherein the gas is at least one gas selected from the group consisting of helium, oxygen, carbon dioxide, nitrogen, argon, and neon. The aurora generating device according to claim 7 , further comprising gas discharge means for changing the selection of gas, mixing of gas, or selection and mixing of gas over time. The present invention is characterized in that there is provided a control means for collectively controlling gas discharge by the gas discharge means, a magnetic field generating means for generating a magnetic field for deflecting charged particles, and driving of a dielectric that blocks the flow of charged particles. The aurora generating device according to claim 6 . A linear negative electrode and a positive electrode to which a DC voltage is applied are installed in a decompression chamber having at least one transparent surface and enclosing one or more kinds of gases while keeping the inside in a predetermined vacuum state. A magnetic field generating means for generating a magnetic field from the inside of the decompression chamber toward the transparent surface by a coil disposed around the transparent surface of the decompression chamber acts on charged particles generated by the discharge between the negative electrode and the positive electrode. The aurora generation method is characterized in that the flow of the charged particles is deflected toward the transparent surface by the magnetic field generation means to generate visible light having a wavelength corresponding to the natural spectrum of the gas.