JP2928923B2 - Optical transmission method using fountain device and fountain column - Google Patents

Description

The present invention relates to a fountain device and an optical transmission method using a fountain column.

[Conventional technology]

2. Description of the Related Art Conventionally, when illuminating a fountain column jetted out into the air, an external illumination system that projects light from around the fountain column toward the fountain column or an internal illumination system that projects light inside the fountain column has been adopted.

[Problems to be solved by the invention]

However, with the external lighting method, not only the fountain pillars but also the surrounding area are illuminated with light, so it is not possible to obtain sufficient effects even if only the fountain pillars are raised with light. When the pillars are formed in a wide area, there is a problem that light does not reach the entire fountain pillar, and a sufficient lighting effect cannot be obtained. Furthermore, even if there is a demand to color adjacent fountain columns with light of different colors, each fountain column cannot be individually illuminated with light of a different color, and each fountain column must be clearly defined. It was impossible to color-code. On the other hand, in the case of the internal lighting system, the floodlight from the light emitting unit does not reach the entire fountain column, the fountain column is illuminated only in the vicinity of the light emitting unit, and sufficient lighting is not performed in places far from the light emitting unit. Alternatively, there is a disadvantage that no illumination is provided.

The present invention has been made in view of the above circumstances, and by devising the state of the water flow forming the fountain column and the installation position of the light emitting portion, the entire fountain column can be sufficiently provided despite the internal lighting system. It is an object of the present invention to provide a fountain device capable of transmitting light to a fountain. It is another object of the present invention to provide a method for performing optical transmission using a fountain column.

[Means for solving the problem]

The fountain device of the present invention has a flow path between the start end of the fountain column in a state of laminar flow or a state close to laminar flow formed by ejecting rectified water through the rectifying section and the rectifying section. ,
A light emitting unit for projecting light is provided inside the fountain column.

The optical transmission method using the fountain column according to the present invention is characterized in that a laminar flow or a near laminar flow formed by ejecting rectified water through the rectifying section is formed between the starting end of the fountain column and the rectifying section. A light emitting unit is provided in the flow path of the above, light is incident on the starting end of the fountain from the light emitting unit, and the incident light is guided through the interior of the fountain column to the terminal end of the fountain column to emit light.

(Operation)

A laminar or near-laminar fountain column formed by jetting rectified water has no or almost no disturbance in the water flow that forms it.
It is known to draw a beautiful posture like a glass rod. Therefore, a light emitting section is provided in the flow path between the starting end of the fountain column and the rectifying section, and a laminar flow or layer formed by ejecting rectified water from the light emitting section through the rectifying section. When light is projected on the beginning of the fountain column near the flow, the light incident on the fountain column reaches the end of the fountain column through the interior of the fountain column and, in some cases, is repeatedly reflected on the surface of the fountain column. Then, the fountain pillar shines due to light leaking around the fountain pillar, and when the light is colored, the fountain pillar looks colored. Also, the light reaching the terminal end emits light at the terminal end.

〔Example〕

FIG. 1 is a configuration diagram of a fountain device according to an embodiment of the present invention.
Reference numeral 1 denotes a nozzle, and 2 denotes a fountain column ejected from the nozzle 1. The nozzle 1 has a rectifying unit 3 and a light-emitting unit 4 built therein. After the pressure water W supplied to the nozzle 1 is rectified by passing through the rectifying unit 3, the nozzle 1 squirts from the jet port 5 to scatter water. The fountain column 2 is formed in a state where there is no or no turbulence in the water flow, or a state where the water flow is disturbed to a negligible degree, that is, a laminar flow or a state close to a laminar flow. Experiments have confirmed that the fountain column 2 thus formed has a beautiful attitude as if it were a glass rod. The rectification unit 3 can be configured using, for example, a plurality of (about 3 to 5) wire meshes having a large number of fine meshes stacked at small intervals, or using other known rectification mechanisms. . The light emitting unit 4 is provided in a flow path between the starting end 2a of the fountain column 2 and the rectifying unit 3, and light emitted from the light emitting unit 4 is incident on the fountain column 2 from the starting end 2a. Then, as shown in FIG. 2, the incident light is reflected repeatedly on the surface of the fountain column 2 or directly without passing through such a reflection through the interior of the fountain column 2 so that the end portion 2b of the fountain column 2 It is led to. Such a phenomenon occurs not only when the fountain column 2 is formed directly,
This also appears when the fountain column 2 is parabolically curved as shown in FIG.

Part of the light leaks to the periphery of the fountain column 2 depending on the incident angle of the optical axis a with respect to the surface of the fountain column 2. The light emitting unit 4 itself needs to be provided in the flow path between the starting end 2a of the fountain column 2 and the rectifying unit 3 as described above, but the light source is not necessarily provided at the starting end 2a of the fountain column 2. It is not necessary to be provided in the vicinity. That is, even if the light source 4a itself is provided as the light emitting part 4 as shown in FIG. 3 in the vicinity of the starting end 2a of the fountain column 2, the light of the light source 4a provided in another place as shown in FIG. Alternatively, the light may be reflected by a reflecting mirror 4b provided near the starting end 2a of the light source 2 and then incident. In the case of FIG. 4, the reflecting mirror 4b becomes the light emitting section 4. Further, as shown in FIG. 5, the light guided by the optical fiber 4c may be projected at a location near the starting end 2a of the fountain column 2. In the case of Fig. 5, the end of the optical fiber 4c
4d is the light emitting unit 4.

In the above, when the fountain column 2 is formed of highly transparent water, light is incident on the starting end 2a of the fountain column 2 from the light emitting part 4, and the light passes through the fountain column 2 and ends at the end of the fountain column 2. When the light reaches the portion 2b, the light is transmitted by the fountain column 2 and the light guided to the terminal portion 2b of the fountain column 2
, Thereby achieving the purpose of optical transmission. The amount of light transmitted varies depending on the thickness of the fountain column 2 and the amount of light emitted from the light emitting unit 2. When a part of the light passing through the inside of the fountain column 2 leaks to the periphery of the fountain column 2, the fountain column 2 is illuminated with the leaked light, and the fountain column 2 itself appears to rise from the surroundings visually. When colored light is incident, the entire fountain column 2 is colored in the color of the light. Further, as shown in FIG. 6, when light emitted from the light emitting portions 4 that emit light of different colors is incident on each of the plurality of adjacent fountain columns 2 separately, the respective fountain columns 2 The colors of the fountain columns 2 do not influence each other, and each fountain column 2 is clearly colored. These facts have been confirmed by experiments.

It should be noted that the light emission from the light emitting section 4 is intermittently performed to
It is free to repeatedly illuminate the entirety of the fountain column 2 at intervals of time, or to continuously illuminate the entire fountain column 2 by continuously projecting the light from the light emitting unit 4. Further, it is possible to change the projected color or the color density by a color filter disposed on the entire surface of the light emitting section 4 as necessary.

〔The invention's effect〕

According to the fountain device of the present invention, even though the fountain column is illuminated by the internal illumination method, the light emitted from the light emitting unit spreads over the entire fountain column, and the entire fountain column is colored in the color of the light. It is also possible to sufficiently cope with a demand for clearly coloring a plurality of adjacent fountain columns with light of different colors. Further, since the internal illumination system is employed, there is no problem as in the external illumination system described at the beginning.

According to the optical transmission method using the fountain column of the present invention, it is possible to transmit and emit light limited to a limited place via the fountain column as if the optical transmission is performed using an optical fiber. Even though it is possible, the fountain column as a transmission medium can be formed immediately if necessary, so when optical transmission is not performed, it is not necessary to form it and the transmission medium does not remain in the space There are advantages. In addition, since the length and destination of the fountain column as the transmission medium can be easily changed by controlling the direction and pressure of the rectified water, the location where light is emitted by light transmission can be easily changed. There is. In this regard,
When optical fiber is used, it is necessary to permanently install an optical fiber as a transmission medium in preparation for optical transmission even when optical transmission is not performed, so when optical transmission is not performed, the optical fiber may be in the way. In addition, there is an inconvenience that the place where light is emitted by light transmission cannot be easily changed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a fountain device according to an embodiment of the present invention.
FIG. 3 is an explanatory view illustrating an optical transmission state, FIG. 3 to FIG. 5 are cross-sectional views for explaining a place where a light emitting unit is installed, and FIG. . 2 ... fountain column, 2a ... start end, 2b ... end end, 4 ... light emitting part.

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B05B 17/08 G02B 6/00

Claims (2)

(57) [Claims] 1. A flow path between a start end of a fountain column in a laminar flow or a state close to a laminar flow formed by jetting rectified water passing through a rectifying section and the rectifying section, A fountain device provided with a light emitting unit for projecting light inside a fountain column. 2. A light emitting section is provided in a flow path between a start end of a fountain column in a laminar flow or a state close to laminar flow formed by blowing out rectified water passing through a rectifying section and the rectifying section. Provided,
A light transmission method using a fountain column, wherein light is incident from the light emitting portion to the start end of the fountain, and the incident light is guided through the interior of the fountain column to the end portion of the fountain column to emit light.