JP2000276083A - Rotary scan type color display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a color dot pattern representing an arbitrary character, figure, symbol, etc., by stably rotating a rotary light emission body in a well- balanced state without providing any balance weight and blinking light emission parts, arranged on its circumferential surface, in specific timing. SOLUTION: Three rotary arms 7R, 7G, and 7B are fitted radially to the rotary shaft 5 of the rotary light emission body 2 at equal intervals (120 deg.), and light emission parts Rn, Gn, and Bn of the primary colors R, G, and B are arrayed at the tips of them to form color display parts having as one group light emission parts Rn, Gn, and Bn positioned on the same scanning line by scanning lines Sn. Control signals which are 120 deg. out of phase are outputted to the respective light emission parts Rn, Gn, and Bn to make a color display of seven colors by combining R, G, and B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of rotating a rotating luminous body while blinking a luminous section arranged on a peripheral surface thereof at a predetermined timing, thereby enabling arbitrary characters, figures, and the like.
The present invention relates to a rotary scanning type color display device that displays a dot pattern representing a symbol or the like in color.

[0002]

2. Description of the Related Art Conventionally, a rotary scanning type display apparatus of this kind has an element array in which a required number of light emitting elements are arranged in a direction orthogonal to the rotation direction thereof, and a controller for blinking each light emitting element at a predetermined timing. (See Japanese Patent Application Laid-Open No. HEI 2
-213892, International Publication WO97 / 50070,
WO98 / 33164).

[0003] At the same time, the motor provided on the pedestal is driven to rotate the rotary luminous body, and at the same time, the controller is operated by the power supply power supplied through the rotary shaft so that each luminous element is driven at a predetermined timing. By blinking
It is formed so as to emit and display a dot pattern that is an arbitrary character, figure, symbol, or the like using the afterimage phenomenon.

[0004]

However, since all of the conventional displays are monochromatic, when displaying text,
There is a problem in that even if a particular word is emphasized in the sentence or a warning is given, the character cannot be displayed in a different color.

In order to eliminate the eccentric load due to the weight of the light emitting element and the controller when the rotating light emitting element is rotated at a high speed, a balance weight is provided on the opposite side of the element array about the rotation axis. Has to be performed for each rotating illuminant.

Although the balance weight is formed to be adjustable for such a necessity, centrifugal force and high-frequency vibration are transmitted to the balance weight while the rotating luminous body is being driven at a high rotational speed. Had the problem of becoming unstable.

Therefore, the technical object of the present invention is to firstly make it possible to perform color display, and secondly to make it possible to rotate the rotating luminous body in a well-balanced and stable manner without providing a balance weight.

[0008]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides a method for rotating a rotating luminous body having a required number of luminous portions forming scanning lines parallel to the rotating direction.
A rotary scanning type color display device for causing each of the light emitting units to blink at a predetermined timing to display a dot pattern representing an arbitrary character, graphic, symbol, or the like in color on a scanning surface thereof, wherein Along with the rotation direction, a color display unit having a plurality of light emitting units of a plurality of colors arranged with a predetermined phase is formed corresponding to each of the scanning lines, and each dot of a predetermined dot pattern is formed. And a control device for outputting a control signal for blinking each light emitting unit according to the position and color of the light emitting unit according to the phase of the light emitting unit.

According to the present invention, a color display section is formed for each scanning line, in which a plurality of light emitting sections of a plurality of colors arranged along the rotation direction of the rotary light emitting element are formed for each scanning line. By blinking each light emitting portion at a predetermined timing, a dot pattern representing an arbitrary character, figure, symbol, or the like is displayed in color on the scanning surface.

For example, RGB scanned on the same scanning line
If a color display unit in which three color light emitting elements are attached at a central angle of 120 ° is formed for each scanning line, a control signal pulse is supplied with a phase difference of 120 ° while rotating the rotating light emitting element at high speed. As a result, the dots at the same position on the dot pattern are lit and displayed.

Here, when the light emitting portions of the three colors RGB are turned on, the light is displayed in white, when the light of two colors RG is turned on, the light is displayed in yellow, and when the light of two colors RB is turned on, the light is displayed in purple. If the color is turned on, it is displayed in light blue, and if it is turned on one by one, it is displayed in red, green, and blue. Therefore, seven colors can be displayed only by turning on and off each light emitting unit.

Therefore, by outputting a control signal for blinking each light emitting portion in accordance with the position and color of each dot of a preset dot pattern in accordance with the phase of the light emitting portion,
The dots are displayed in an arbitrary color.

A plurality of rotating arms are radially attached to the rotating shaft of the rotating luminous body at equal intervals, and light emitting portions having different colors are arranged at the tip of each rotating arm. Since the weights are substantially equal, the center of gravity of the rotating luminous body is located on the rotation axis, and there is no need to provide a balance weight.

Further, according to a more preferred embodiment, for each of the three rotating arms attached to the rotating shaft of the rotating luminous body, light emitting portions of three colors RGB are formed for each color. Light is guided from an external light source device via an optical fiber. According to this, since no electronic circuit is formed on the rotating luminous body, there is almost no possibility that a centrifugal force or high-frequency vibration generated when the rotating luminous body is rotated at a high speed adversely affects the electronic circuit.

[0015]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a front view showing an example of a rotary scanning type color display device according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is an explanatory diagram showing dot patterns and control signals displayed on a scanning surface, and FIG. FIG. 5 is an explanatory diagram showing the relationship between the arrangement of the light incident ends of the optical fibers and the light source device, and FIG. 6 is an explanatory diagram showing the relationship between the dot pattern displayed on the scanning surface and the control signal. is there.

A rotary scanning type color display device 1 shown in FIG.
Attached to the rotating shaft 5 of the
The rotary shaft 5 is rotated at 3000 rpm, and the rotary shaft 5 is vertically inserted from an opening 6 a formed on the bottom side of the casing 6 supported by the pedestal 3. The casing 6 is selected from a transparent, milky white, surface frosted or the like material having a light transmitting property. In this embodiment, a transparent and spherical casing 6 is used.

The rotating luminous body 2 has three rotating arms 7R, 7G, and 7B attached to the rotating shaft 5 at equal intervals radially at a central angle of 120 °. At the tip 7a of each of 7G and 7B, light emitting portions R _{1 to} R ₁₆ (Rn), G _{1 to} G ₁₆ (Gn), and B _{1 to} B of three colors of RGB are provided.
₁₆ (Bn) are vertically formed and arranged 16 by color.

Light emitting elements DRn, DGn, and DBn are arranged in each of the light emitting portions Rn, Gn, and Bn. When the rotating light emitting body 2 is rotated, a required number of scanning lines Sn parallel to the rotation direction are provided.
Are arranged at the same height as the scanning line Sn so as to move along the scanning line Sn. Then, the three color light emitting units Rn, Gn, attached to the corresponding positions of the rotary arms 7R, 7G, 7B.
Bn as a set and a color display section C for each scanning line Sn.
n. Therefore, each of the light emitting elements DRn, D
By blinking Gn and DBn at a predetermined timing, a dot pattern representing an arbitrary character, figure, symbol, or the like can be displayed on the scanning surface M in color.

Each of the rotary arms 7R, 7G, 7B has
The hinges 8 and 8 are attached so as to be foldable in two stages from the middle thereof, and the diameter of the rotary luminous body 2 when the rotary arms 7R, 7G and 7B are folded is smaller than the diameter of the opening 6a of the casing 6. It is formed so that it becomes. Thus, when the rotating light-emitting body 2 is rotated at a predetermined rotation speed or more, the rotating arms 7R, 7G, and 7B are opened horizontally by the centrifugal force. It is folded down by its own weight so that the rotating light-emitting body 2 can be easily taken in and out of the casing 6 during maintenance.

Further, on each of the rotary arms 7R, 7G, 7B are mounted control devices 9R, 9G, 9B for individually turning on and off the respective light emitting elements DRn, DGn, DBn at a predetermined timing.

A power supply device 10 for supplying power to the light emitting elements DRn, DGn, DBn and the control devices 9R, 9G, 9B
The primary coil 10a that generates an induced electromotive force in the secondary coil 10b that is integrally provided at the lower end of the rotating shaft 5,
It is arranged on the pedestal 3 so as to face the secondary coil 10b.

Therefore, when the rotating shaft 5 is rotated, an induced electromotive force can be generated in the secondary coil 10b in a non-contact manner by the electromagnetic induction action, and the induced electromotive force is transmitted to the light emitting elements DRn and DGn via the flexible wiring board 11 and the like. , DBn and the control devices 9R, 9G, 9B.

In the pedestal 3, light emitting elements DRn, D
A rotary encoder 12 for outputting a rotation angle signal of the rotary light-emitting body 2 for synchronizing the blinking timing of Gn and DBn is provided. This rotary encoder 1
2, an optical element 12b for irradiating the code disk 12a with light and detecting the reflected light is provided integrally with the rotary shaft 5, and a reflective code disk 12a is fixed to the base 3. ing. Thus, when the rotation shaft 5 is rotated, a rotation angle signal is output from the optical element 12b, and is sent to each of the control devices 9R, 9G, 9B via a signal line (not shown) provided in the rotation shaft 5. It is made to be supplied.

The control devices 9R, 9G and 9B are turned on by the power supply supplied from the power supply device 10, and each of the light-emitting devices is controlled based on the rotation angle signal input from the rotary encoder 12 and a preset dot pattern. Element D
Control signals CRn, CGn, and CBn for blinking Rn, DGn, and DBn at individual timings are output.

For example, rotating arms 7R, 7G, and 7B are mounted at intervals of a central angle of 120 °, and the rotating luminous body 2 is rotated counterclockwise as shown in FIG. When displaying, each rotating arm 7R, 7R
Light-emitting elements DRn, DGn, D attached to G, 7B
Control signals CRn, CGn, and CBn for blinking Bn are output as follows.

First, by rotating the rotating luminous body 2 at a high speed, the light emitting elements DR constituting each color display portion Cn are rotated.
n, DGn, and DBn are scanning lines Sn parallel to the rotation direction.
Are scanned along. At this time, a rotation angle signal is output from the rotary encoder 12 at intervals of 5 °. When each of the light emitting elements DRn, DGn, and DBn can blink in synchronization with this signal, the 16 scanning lines S _{1 to} S ₁₆ are turned on. On the scanning planes M arranged in parallel, as shown in FIG.
A matrix display surface of dots is formed.

When a character string "MTX..." Is to be displayed on the scanning surface M, as shown in FIG. 3A, dots (black circles) to be turned on to draw characters and lights are turned off. Dots (white circles) are set according to the dot pattern. For example, a dot D _1, D ₂ which constitute the character M Looking for scanning lines S _1, a dot D ₃ to D ₁₂ constituting the character T, the dot D ₁₃ to D ₁₆ constituting the character X
Is emitted.

Here, each of the rotating arms 7R, 7G, 7B forming the light emitting portions Rn, Gn, Bn has a center angle of 12 °.
0 °, the light emitting portion R formed on the rotating arm 7R
From the state where n is positioned at the origin, the rotating luminous body 2 is moved to 120
When rotated, the light emitting portion Gn is located at the origin, and
When rotated by 0 °, the light emitting unit Bn is located at the origin.

[0029] Thus, a control signal CR ₁ blinking the light-emitting element DR _1, a control signal CG ₁ blinking the light-emitting element DG _1, the control signal CB for blinking a light emitting device DB _1
1 is output with a phase of 0 °, 120 °, and 240 °, respectively. Thereby, each light emitting element DRn, DGn, DB
n is the be lit at the same position of the same scan line S _1.

When the characters M, T, and X are displayed in white, as shown in FIG. 3B, the control signals CR ₁ , C
The G _1, CB _1, turns on the light emitting element DR ₁ of three colors of the color display unit C ₁ is scanned scan lines S _1, DG _1, a DB ₁ at the position of the dots D ₁ to D _16.

When the characters M, T, and X are to be displayed in yellow, purple, and light blue, respectively, as shown in FIG. 3C, the character M is controlled by the control signals CR ₁ and CG _1. The color light emitting elements DR ₁ and DG ₁ are turned on at the positions of the dots D ₁ and D ₂ , and the control signals CR ₁ and C for the character T
The two color light emitting elements DR ₁ and DB ₁ are converted to dots D ₃ by B _1.
It is turned at the position of the to D _12, the character X control signal C
G _1, CB ₁ by lighting the light-emitting element DG _1, DB ₁ dichroic at the position of the dot D ₁₃ to D _16.

Characters M, T, and X are represented by red, green,
To display in blue, as shown in FIG.
For the character M, the control signal CR₁Due to red emission
Element DR₁To dot D₁, D_TwoLights at the position
Control signal CG for T₁Green light emitting element DG
₁To dot D_Three~ D₁₂At the position of
Control signal CB₁Blue light emitting element DB₁Do
D₁₃~ D ₁₆It is sufficient to light up at the position. Note that other
The light-emitting elements DRn, DGn, and DBn of the
The control signals CRn, CGn, and CBn for lighting are also
Same as described above.

As described above, the light emitting elements D of the three colors RGB are used.
By turning on and off R ₁ , DG ₁ , and DB ₁ in combination, seven colors can be displayed. Further, by changing the amount of current supplied to each light emitting element _{DR 1, DG 1, DB 1} , since the light-emitting element DR ₁ each, DG _1, the luminance of DB ₁ is changed in an analog manner, to use it Thereby, color display can be performed with more colors by changing the ratio of mixed colors. For example, each light emitting element DRn,
When DGn and DBn are blinked at three gradations of unlit, darkly lit, and brightly lit, 3 × 3 × 3-1 = 26 colors can be displayed.

When the character string displayed on the scanning surface M is sequentially moved and displayed from right to left, the dot pattern of the character string is changed by one dot (1 from right to left as viewed in FIG. 3A). (Pulse) in the horizontal direction. For example, when the rotating luminous body 2 is rotated at 3000 rpm, if the dot pattern is moved to the left by one dot every 10 rotations, it moves to the left by one dot in 0.2 seconds. Note that dot pattern information such as characters to be displayed is stored in advance in memories (not shown) of the control devices 9R, 9G, and 9B with a remote controller or the like, or is supplied in advance as data from an external computer or the like.

The above is one configuration example of the present invention, and its operation will be described below. First, the dot patterns of the characters to be displayed are determined by using a remote controller or the like in each of the control devices 9R, 9G, 9B
To be stored. When the motor 4 is started, the folded rotary arms 7R, 7G, and 7B open horizontally by centrifugal force, and when a predetermined number of rotations is reached, power is supplied from the power supply device 10 to each part of the rotary luminous body 2. Is done. Thereby, the light emitting element DR is transmitted from each of the control devices 9R, 9G, and 9B.
n, DGn, control signal CR for blinking DBn individually
n, CGn, and CBn are output, and the light emitting units Rn, Gn,
Bn blinks.

The control signals CRn, CGn, CBn are:
Since the light is output according to the phase of each of the light emitting elements DRn, DGn, DBn, when the rotating light emitting element 2 is rotated, the light emitting elements DRn, DGn according to the position and color of each dot of a preset dot pattern. , DBn can blink. Thus, the character string (dot pattern) set in advance on the scanning surface M is displayed in color.

When control signals CRn, CGn, and CBn in which the dot pattern is shifted by one dot are output at predetermined time intervals, the character string is moved and displayed from right to left, so that even long sentences can be displayed. it can. At this time, since the display is sequentially moved to the left side along the rotation direction of the rotating luminous body 2, the text can be read from any direction of 360 °.

The rotating shaft 5 has rotating arms 7R, 7R.
G, 7B are radially mounted at equal intervals, each rotary arm 7R, 7G, 7B than the color of the light emitting element DR _1, DG _1, DB ₁ is different only provided on the distal end 7a, any basic structure Since they can be the same, their respective weights are substantially equal, so that the center of gravity of the rotating luminous body 2 is located on the rotating shaft, and there is no need to provide a balance weight.

FIG. 4 shows another embodiment of the present invention, in which parts common to FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description thereof will be omitted. The rotating luminous body 22 of the rotating scanning type color display device 21 of the present example has a rotating shaft 24 rotatably supported in a spherical translucent casing 23 and three rotating arms 7R, 7G, 7B radially. They are installed at equal intervals.

Each of the rotary arms 7R,
RGB three-color light emitting units Rn, G formed on 7G, 7B
optical fibers FRn and FG for guiding light to n and Bn
n, FBn are provided, and respective light emitting ends 25out... are provided to face the respective light emitting units Rn, Gn, Bn. The three color light emitting units Rn, Gn, and Bn attached to the corresponding positions of the rotary arms 7R, 7G, and 7B form a set to form a color display unit Cn for each scanning line Sn.

The rotating shaft 24 has upper and lower ends 24a, 24a.
b is supported by bearings 28A and 28B in the casing 23. The lower end 24b of the rotating shaft 24 supported by the lower bearing 28B and the upper end of the rotating shaft 31 of the pulse motor 30 disposed on the pedestal 29 supporting the casing 23 are provided with the rotation of the rotating A magnetic coupling 32 for transmitting the contactlessly is formed. The magnetic coupling 32 is attached to each of the rotating shafts 24 and 31 in a state where a pair of disks 33a and 33b in which N poles and S poles of permanent magnets are arranged on the circumference face each other.

Each of the optical fibers F
A light source device 34 for causing RGB light of three colors to be incident on Rn, FGn, and FBn is provided, and control signals CRn, CGn, and CBn for blinking the light sources LRn, LGn, and LBn of the light source device 34 at individual timings are output. A control device 35 is provided.

Each optical fiber FR₁~ FR₁₆, FG₁
~ FG₁₆, FB₁~ FB ₁₆Is the light incident end 25in ...
However, as seen from above the casing 23 as shown in FIG.
The rotating shaft 24 is provided for each rotating arm 7R, 7G, 7B.
They are arranged at equal intervals in a triple annular shape with the center at the center.

Each optical fiber for guiding light of the same color
(For example, FR₁~ FR ₁₆) In this order in the clockwise direction
Are arranged at equal intervals of 22.5 °, and are different for each color display section Cn.
Each optical fiber that guides light of a different color (eg, FR₁, F
G₁, FB₁) Are arranged at 120 ° intervals
You. The light of the optical fibers FRn, FGn, FBn
The incident end 25in... And the light emitting end 25out.
Numerical aperture, light incident direction, if necessary
Or, a lens for adjusting the light emission direction is attached.
Alternatively, the end face is processed.

On the other hand, when viewed from above the casing 23 as shown in FIG.
Triple annular light source units 36R, 36G, 36 in which a required number of RGB three-color light sources LRn, LGn, LBn are arranged in a required number of colors for each color in opposition to the light incident ends 25in of FGn, FBn.
B is provided. Then, the annular light sources 36R, 36G,
In 36B, the light source _{LR 1 ~LR 16, LG 1 ~LG} 16, LB
_{1 to} LB ₁₆ are arranged in this order at 22.5 ° intervals in a counterclockwise direction, and corresponding light sources LR ₁ , LG ₁ ,
The LBs ₁ are formed in the same phase.

The control device 35 outputs a pulse signal for controlling the rotation of the pulse motor 30, and emits light in accordance with the position and color of each dot of a preset dot pattern. Rn, Gn, Bn
For each light source LRn, LGn, LBn that supplies light to
Control signal CR corresponding to the phase of light emitting units Rn, Gn, Bn
n, CGn, and CBn are output, and the dot is displayed in a predetermined color.

When the rotation direction of the rotating luminous body 22 is counterclockwise,
In some cases, the control signals CRn, CGn, CBn are:
Is output as First, the rotating luminous body 22 is rotated at a high speed.
As a result, each light emitting unit Rn, Gn, Bn rotates
The scanning is performed in the horizontal direction on the scanning line Sn along the direction. This
When the optical fiber FR for each color emission₁~ FR₁₆, FG
₁~ FG₁₆, FB₁~ FB₁₆The light incident end 25in of each color
16 light sources LR₁~ LR₁₆, LG₁~ LG ₁₆, LB₁
~ LB₁₆Sequentially.

Here, the optical fibers FRn, FGn, FB
If the light sources LRn, LGn, and LBn are turned on and off at a time interval that can be turned on and off six times while the light source n passes through each of the light sources LRn, LGn, and LBn, 16 scanning lines S _{1 to} S ₁₆ are arranged in parallel. A 16 × 96 dot matrix display surface is formed on the scanning surface M as shown in FIG.

The light source LR₁Is the optical fiber FR₁of
Light is not incident only on the rotation axis 24
Optical fiber FR coming one after another_Two~ FR₁₆Sequentially light
Is incident. Therefore, the scanning line S₁Traveling luminous
Part R₁Instead of only emitting light, the rotating illuminant 22
Each time it rotates 22.5 °, scan line S₁~ S₁₆Traveling luminous
Part R₁~ R₁₆Are sequentially emitted. That is, the scanning surface
When viewed on M, the portion surrounded by the thick line in FIG.
LR ₁, LG₁, LB₁Will emit light.

The central angle between the rotary arms 7R, 7G, 7B forming the light emitting portions Rn, Gn, Bn is 120 °.
Therefore, from the state where the light emitting unit Rn is located at the origin,
When the rotating light emitter 22 is rotated by 120 °, the light emitting unit Gn is located at the origin, and when the rotating light emitter 22 is further rotated by 120 °, the light emitting unit Bn is located at the origin.

At this time, different color display portions Cn
Optical fibers FRn, FGn, FB for guiding light of different colors
.. are arranged with a phase of 120 °.
Control signal CR₁, CG₁, CB₁1
If the light is output with a phase of 20 °, each light source LR₁,
LG₁, LB₁Of light from each scanning line S₁~ S ₁₆Same as above
Light is emitted from the light emitting units Rn, Gn, and Bn.

Therefore, the light source LR₁Flashing control
Signal CR₁And the light source LG ₁Control signal CG for blinking₁
And the light source LB₁Control signal CB for flashing₁Is 0 each
°, 120 °, and 240 ° are output. this
, Each light emitting element DRn, DGn, DBn scans the same.
Line S₁Will be lit at the same position.

When a character string "MTX..." Is to be displayed on the scanning surface M, as shown in FIG. ) And the dot to turn off (white circle)
Set.

Here, the light sources LR ₁ , LG ₁ and LB ₁ are:
Dots of the portion enclosed by a thick line is lit, the dot D ₂₁ to D ₂₃ constituting the character M, the dots D ₂₄ constituting the character T
And to D _26, thereby emitting a dot D ₂₇ to D ₃₀ that make up the character X.

When the characters M, T, and X are displayed in white, as shown in FIG. 6B, the control signals CR ₁ , C
The light sources LR ₁ , LG ₁ , LB ₁ are turned on at the positions of the respective dots D _{21 to} D ₃₀ by G ₁ , CB ₁ .

Characters M, T, and X are yellow, purple,
Is to be presented with light blue, as shown in FIG. 6 (c), the lighting by the letter M For control signals CR _1, CG ₁ a light source LR _1, LG ₁ dichroic at the position of the dot D ₂₁ to D ₂₃ For the character T, the two color light sources LR ₁ and LB ₁ are turned on at the positions of the dots D _{24 to} D ₂₆ by the control signals CR ₁ and CB ₁ , and for the character X, the two colors are controlled by the control signals CG ₁ and CB ₁ the light source LG _1, LB ₁ is turned on at the position of the dot D ₂₇ to D _30.

[0057] Further, the character M, T, X respectively red, Midorido, to display in blue, as shown in FIG. 6 (d), the red light source by the letter M and the control signal CR ₁ LR ₁ is turned on at the positions of the dots D _{21 to} D _23, the green light source LG ₁ is turned on at the positions of the dots D _{24 to} D ₂₆ by the control signal CG _{1 for} the character T, and blue by the control signal CB ₁ for the character X. dot D ₂₇ light source LB ₁ of ~D
It only has to be lit at ₃₀ positions. The control signals CRn, which turn on the other light sources LRn, LGn, LBn that supply light to the light emitting units Rn, Gn, Bn of the other color display units Cn,
The same applies to CGn and CBn.

As described above, also in the present embodiment, by rotating the rotary luminous body 22, a preset dot pattern can be displayed in color. At this time, since the rotary luminous body 22 has only the optical fibers FRn, FGn, FBn attached to the rotary arms 7R, 7G, 7B, and the light source device 34 and the control device 35 are provided on the base 29, Also, even if a centrifugal force or high-frequency vibration acts on the rotating arms 7R, 7G, 7B when the rotating light-emitting body 22 is rotated at a high speed, the influence is less.

Further, since it is not necessary to provide a light emitting element and a control device for blinking the light emitting element in each of the rotary arms 7R, 7G, 7B, the weight of the rotary light emitting body 22 can be significantly reduced as compared with the conventional device. Therefore, even if the bearings are rotated at a high speed, the load applied to the bearings 28A and 28B is reduced, so that the bearings 28A and 28B can be reduced in size. At the same time, the motor 30 for driving the bearings needs to have a small capacity.

The optical fibers FRn, FGn, and FBn for guiding light of different colors to the same color display portion Cn are arranged with a phase of 120 °, and the light sources LRn, LG
Although the case where n and LBn are arranged in the same phase has been described, the present invention is not limited to this, and the optical fibers FRn and FG
n and FBn are arranged in the same phase, and light sources LRn and LG
n and LBn may be arranged in a predetermined phase (120 °).

Further, the case where the pulse motor 30 is used as the motor for driving the rotary luminous body 22 to rotate is described, but the type of the motor is arbitrary. However, if the pulse motor 30 is used, its rotation angle is synchronized with the drive pulse, so that the rotation angle of the rotary luminous body 22 and the light source L
Control signals CRn, CGn, CB for Rn, LGn, LBn
There is an advantage that it is not necessary to use a rotary encoder or the like for detecting a rotation angle in order to synchronize n.

Further, in any of the embodiments, the three rotating arms 7R, 7G, 7B are provided with the light emitting portions Rn, G of three colors.
Although the case where n and Bn are formed has been described, a case where a three-color display of red, green and yellow is formed by forming red and green light emitting parts on two rotating arms and blinking them in combination. You may.

Further, the rotating arms 7R, 7G, 7B
Alternatively, the cylindrical drum having the light emitting units Rn, Gn, and Bn formed on the peripheral surface may be rotated. Rotating arm 7
When the R, 7G, and 7B are rotated at high speed, the other side can be seen through, so that the displayed characters may be difficult to see depending on the lighting and the background. However, such a disadvantage is caused when the cylindrical drum is rotated. Can be eliminated.

The casings 6 and 23 are not limited to being transparent, and may be formed of a translucent opaque material such as milky white or a surface frosted one. If such a material is used, the other side will not be seen through, so that the characters are easy to see. In this case, the casing 6,2
Reference numeral 3 denotes a light emitting portion R of the rotating light emitters 2, 22 disposed inside.
The light emitted from n, Gn, and Bn is projected, and functions as a screen for observing the light from the outside. Therefore, in order to clearly project a dot pattern on the screen, it is preferable to use a light-emitting element DRn, DGn, DBn or a light source LRn, LGn, LBn having a high light intensity. Gn,
It is desirable that Bn is provided with a lens or the like for emitting a beam of light having a narrow exit angle.

[0065]

As described above, according to the present invention, since the light-emitting portions of a plurality of colors are scanned on the same scan, these are combined and blinked in accordance with the phase of the light-emitting portions, thereby setting in advance. Each dot of the dot pattern thus formed can be displayed in an arbitrary color, so that there is an extremely excellent effect that the entire dot pattern can be displayed in color.

Further, since the rotating arms having the light emitting portions of the respective colors are radially attached to the rotating shaft at equal intervals, the center of gravity of the rotating luminous body can be positioned on the rotating shaft. Therefore, it is necessary to separately provide a balance weight. There is no need for complicated adjustment work.

Furthermore, if light is guided from an external light source to each light emitting unit via an optical fiber, no electronic circuit is required for the rotating light emitting body. There is an effect that it becomes difficult to perform.

[Brief description of the drawings]

FIG. 1 is a front view showing a rotary scanning type color display device according to the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a diagram illustrating a relationship between a dot pattern displayed on a scanning surface and a control signal.

FIG. 4 is a front view showing another embodiment.

FIG. 5 is a plan view showing the relationship between the arrangement of the light incident end of the optical fiber and the light source device.

FIG. 6 is a diagram showing a relationship between a dot pattern displayed on a scanning surface and a control signal.

[Explanation of symbols]

1, 21 ... rotating scanning type color display device 2, 22 ... rotating luminous body 4, 30 ...
Motors 5, 24, 31 ... rotating shafts 6, 23 ...
Casing 7R, 7G, 7B Rotating arm Rn, Gn, B
n ··· Light emitting unit DRn, DGn, DBn ··· Light emitting element Sn
Scanning line Cn: color display unit M:
Scanning surface 9R, 9G, 9B Control device 10
Power supply device 10a ... primary coil 10b ...
Secondary coil CRn, CGn, CBn Control signal FRn, FGn, FBn Optical fiber 25out Light emitting end 25in
Light incident end 32 Magnetic coupling 34
Light source device LRn, LGn, LBn Light source 35 ...
Control device

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C080 AA01 BB05 CC03 DD03 EE01 EE25 FF09 GG02 JJ01 JJ04 JJ06 5C094 AA53 BA15 BA23 CA18 CA24 DA01 DA20 5C095 BA02 DA02 DA07 DA90 EE31 EE90

Claims (10)

[Claims] 1. A method according to claim 1, further comprising rotating a rotating luminous body (2, 22) having a required number of luminous portions (Rn, Gn, Bn) forming scanning lines (Sn) parallel to the rotation direction. By blinking the section (Rn, Gn, Bn) at a predetermined timing, any character, figure,
What is claimed is: 1. A rotary scanning type color display device for displaying a dot pattern representing a symbol or the like in color, comprising: a plurality of colors of light emitted in a predetermined phase along a rotation direction of said rotary luminous body (2, 22). (Rn, Gn,
Bn) is formed as a set and a color display section (Cn) is formed corresponding to each of the scanning lines (Sn), and each light emitting section (Rn, Rn, Rn) corresponds to a position and color of each dot of a preset dot pattern. Gn, Bn) is controlled by the control signal (CRn, CGn, CBn).
n, Gn, Bn).
R, 9G, 9B, 35). 2. The rotating light-emitting body (2, 22) includes a plurality of rotating arms (7R, 7G, 7B) on a rotating shaft (5, 24).
Are radially attached at equal intervals, and the light-emitting portions (Rn, Rn,
2. A rotary scanning type color display device according to claim 1, wherein (Gn, Bn) are arranged. 3. The rotating luminous body (2) is disposed in a spherical or cylindrical casing (6) having translucency, and each of the rotating arms (7R, 7G, 7B) is foldable from the middle thereof. The diameter of the rotating luminous body (2) formed when the rotating arms (7R, 7G, 7B) are folded is the diameter of the opening (6a) for putting the rotating luminous body (2) into and out of the casing (6). 3. The rotary scanning type color display device according to claim 2, wherein the device is selected to be smaller. 4. The rotating luminous body (2) comprises three rotating arms (7R, 7G, 7B) attached to a rotating shaft (5), and each rotating arm (7R, 7G, 7B) RG
4. The rotary scanning type color display device according to claim 2, wherein light emitting elements of three colors B (DRn, DGn, DBn) are arranged and arranged for each color. 5. The rotary scanning type color display device according to claim 2, wherein said control device (9R, 9G, 9B) is mounted on each rotary arm (7R, 7G, 7B). 6. The rotary scanning type according to claim 1, further comprising a power supply device (10) for supplying electric power to said rotary luminous body (2) in a non-contact manner by electromagnetic induction. Color display device. 7. Three rotating arms (7R, 7G, 7B) are attached to a rotating shaft (24) of the rotating luminous body (22),
For each of the rotating arms (7R, 7G, 7B), light emitting portions (Rn, Gn, Bn) of three colors of RGB are arranged for each color to form the color display portion (Cn). , The light emitting units (Rn, Gn, B
n) to guide the light to the optical fibers (FRn, FG)
n, FBn) are provided, and respective light incident ends (25
in) are arranged in a triple annular shape centered on the rotation axis (24) for each of the rotating arms (7R, 7G, 7B), and are arranged to face a light source device (34) for allowing light to enter from the outside. The light source device (34) includes the annular optical fiber (FR
n, FGn, and FBn), a triple annular light source unit (36R) in which a required number of RGB three-color light sources (LRn, LGn, and LBn) are conformally arranged by a required number for each color in opposition to the light incident end (25 in) of the row. ,
36G, 36B), and the control device (35) supplies light to each light emitting unit (Rn, Gn, Bn) that emits the dot according to the position and color of each dot of a preset dot pattern. Control signal (C) for blinking each light source (LRn, LGn, LBn)
Rn, CGn, CBn), and the light emitting units (Rn, Gn,
4. A rotary scanning type color display device according to claim 1, wherein the output is made according to the phase of Bn). 8. The optical fiber (FRn, FGn, FB)
A lens for adjusting the numerical aperture, the light incident direction or the light emitting direction is attached to one or both of the light incident end (25in) and the light emitting end (25out) of n), or the end face is processed. 8. A rotary scanning type color display device according to claim 7, wherein 9. The rotating luminous body (22) is accommodated in a casing (23) having translucency, and the rotation of a motor (30) disposed outside the casing (23) is controlled by the rotating luminous body (22). twenty two)
9. The rotary scanning type color display device according to claim 6, further comprising a magnetic coupling (32) for transmitting the rotation to the rotating shaft (24) in a non-contact manner. 10. The rotating luminous body (2, 22) is housed and arranged in a translucent opaque spherical or cylindrical casing (6, 23), and each of the light emitting units (Rn, Gn, Bn), by projecting light onto the inner surface of the casing (6, 23) to display a dot pattern representing an arbitrary character, figure, symbol or the like in color. 8 or 9
A rotary scanning type color display device as described in the above.