JPH0132992B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotary display device that reproduces and displays images such as letters, numbers, figures, etc. using a flashing light emitting device.

Purpose, Structure, and Function of the Invention The human eye has an afterimage phenomenon, and various devices that apply this phenomenon have been put into practical use.The present invention utilizes this afterimage phenomenon to create a display device with a new sensation. The present invention provides a rotary display device that can be realized.

That is, the present invention arranges a plurality of light emitters on the surface of a rotating body around a spindle in a direction substantially perpendicular to the direction of movement, and blinks these light emitters according to the rotation angle of the rotating body. A control circuit is provided to reproduce and display an image in space by selectively blinking the light emitting device in accordance with the rotation of the rotating body. Selective blinking of the light emitters is performed while corresponding to the image elements obtained by dividing the light emitters into long and thin sections corresponding to the arrangement of the light emitters, and the image elements sequentially drawn by the moving light emitters become afterimages. The remaining image to be displayed as a whole is configured to be reproduced and displayed in space.

Therefore, according to the present invention, when a person's line of sight is fixed in one direction and the row of light emitters blinks and moves within the field of view at that time, the image is reproduced and visible. It is possible to obtain unique display effects not found in other display devices.

Embodiment Hereinafter, the present invention will be specifically explained with reference to an illustrated embodiment.

Figure 1 shows an example of the appearance of the device, in which a plurality of light emitters 2 are mounted on the outer peripheral end surface of a rectangular rotating body 1.
are arranged in a straight line at equal intervals, and the rotating body 1
is attached to a base 4 so as to be rotatable by a support shaft 3 in the same direction as the row of light emitters 2. A control circuit (not shown) is provided within the base 4 or at another appropriate location, and this control circuit causes the light emitter 2 to blink in accordance with the rotation of the rotating body 1.

FIG. 2 shows a case where the image 5 to be displayed is the letter A, and as shown in FIG.
Divide into b~5k. These image elements 5a, 5b
When ~5k is further divided horizontally into six elements each, a part of image 5 is placed in the bottom element of image element 5a, and a part of image 5 is placed in the second element from the bottom of image element 5b. 5
For example, in the image element 5e, the second and fourth elements from the top include a part of the image 5, respectively. ○ in the element that contains part of this statue 5
When represented by the mark 6, it becomes as shown in FIG. 2b, and the light emitter 2 blinks in accordance with this FIG. 2b.

In other words, Fig. 3 shows the blinking situation when the rotating body 1 rotates by a certain angle θ. Corresponding to Fig. 2, the angle θ is divided into 11 equal parts, and when it is at the initial position Pa, the lowest light emission Light up only vessel 2 and move to the next position
When reaching position Pb, only the second light emitter 2 from the bottom is made to emit light, and for example, when coming to the center position Pf, the topmost light emitter 2 and the fourth light emitter 2 from the top are caused to emit light respectively, as shown in Fig. 2. The light emitters 2 are made to emit light sequentially in correspondence with the circle marks 6 in b. Therefore, the rotating body 1
When has finished rotating by the angle θ, each position Pa,
The afterimage 7 of the light emitter 2 emitted by Pb,...,Pk is the second
It remains in the same shape as the circle mark 6 in Figure b, and the letter A, that is, the image 5, is reproduced in space.

The above is an explanation of the case where 6 light emitters 2 are used and the image 5 is divided into 11 parts. Of course, it is possible to improve the accuracy of the display, and it is also possible to display complex figures.

Furthermore, if the light emitters 2 are provided at both ends of the rotating body 1 and the lights are blinked in the same pattern at the same position, the number of times of light emission per rotation of the rotating body 1 can be doubled and the amount of light can be increased. The shape of the rotating body 1 is not limited to the rectangular plate shape shown in the figure; for example, it may be cylindrical as shown in FIG. It is also possible to arrange a group of light emitters radially on a plate-like surface. Note that the blinking pattern is not limited to a fixed one, but can also be changed, and a moving image can also be displayed. Further, the effect of the present invention can be achieved if the light emitter is in a direction other than parallel to the moving direction of the rotating body in which the light emitter is disposed.

Effects of the Invention As described above, the present invention reproduces and displays an image using the afterimage when a row of light emitters blinks and moves within a person's visual field, and it is possible to obtain a unique display effect. It is possible.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the appearance of one embodiment of the present invention, Fig. 2 a and b are explanatory diagrams of the image division state, Fig. 3 is an explanatory diagram of the image reproduction state, and Fig. 4 is an illustration of the other FIG. 2 is a perspective view showing the appearance of the example. 1...Rotating body, 2...Light emitter, 3...Spindle, 5...Image,
5a, 5b to 5k...image element, 7...afterimage.

Claims (1)

[Claims] 1. A plurality of light emitters are linearly arranged at intervals on the outer peripheral end surface of a rotating body that rotates around a support shaft in a direction substantially perpendicular to the direction of movement, and
A control circuit is provided to blink each of the plurality of light emitters according to the rotation angle of the outer peripheral end face of the rotary body, and the image to be displayed is divided into elongated sections corresponding to the arrangement of the light emitters. The plurality of light emitters are selectively blinked in accordance with the rotation angle of the outer peripheral end face of the rotating body while corresponding to the rotational movement of the light emitters, and the array includes afterimages of image elements sequentially emitted by the light emitters blinking while rotating. 1. A rotating display device characterized in that an image to be displayed in space is reproduced and displayed by