JPH07227342A - Light display device - Google Patents

Abstract

PURPOSE:To provide a light display device which enables the changing of a pattern generated by light in a high variety and the recognizing thereof clearly at a long distance. CONSTITUTION:This light display device 1 houses a light source 3, a polygon 4 to make light from the light source 3 reflect or incident light disperse by bending it and a motor 5 for rotating the polygon 4 in a box 2. A transmitting member is mounted on one surface 6 of the box body 2 on the extension of the light source 3 and the polygon 4 to transmit light from the polygon 4. As the polygon 4 rotates, the light scattered changes in high variety. Such light passes through the transmitting member of the box body 2 to create a pattern of light in high variety on the surface of a housing body. When the light source is a laser, directive sharp light is generated thereby enabling the identifying of the pattern thereof accurately even at a long distance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical display device that can be used as an advertising light, a decoration, or the like.

[0002]

2. Description of the Related Art Conventionally, there has been known an advertisement lamp in which a light source is arranged at the center of a transparent cylindrical case and a conical reflector or the like is rotated around the light source. Such a conventional advertising lamp operates so as to block the light from the light source at a predetermined cycle by rotating the conical reflector.
I was able to get the attention of the viewer.

[0003]

[Problems to be solved] However, in the above advertising lamp, the movement and pattern of the light produced by the light source and the reflector are monotonous, and the viewer is tired of it. Further, there is a problem that the light of the advertising lamp has a low directivity and cannot be clearly recognized from a distance.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an optical display device in which a pattern produced by light can be varied in a variety of ways and can be clearly recognized from a distance.

[0005]

In order to solve the above problems, in the optical display device according to the first invention, a light source,
A light disperser that disperses the light from the light source, a rotating unit that rotates the light disperser, and a container that houses the rotating unit, the light disperser, and the light source are provided, and a part of the container is provided. It was constructed by attaching a transparent member. In this case, the light dispersion may be a polyhedron made of a transparent material. Further, it is desirable that the light source is a laser.

In order to solve the above-mentioned problems, in the optical display device according to the second invention, a light source, a light dispersion for dispersing the light of the light source, and a light source rotation for rotating the light source around the light dispersion. And a container for accommodating the light source rotating unit, the light dispersion member, and the light source, and a transparent member is attached to a part of the container. In this case, the light dispersion may be a polyhedron made of a transparent material. Further, it is desirable that the light source is a laser.

[0007]

In the optical display device according to the first aspect of the present invention, the light from the light source is reflected by the light disperser or refracted internally, so that the light in the predetermined direction is scattered from the light disperser.
Since the light disperser is rotating, the scattered light is highly variable. Such light is transmitted through a part of the transparent member of the container to create a varied light pattern on the surface of the container. If the light source is a laser, the light has sharp directivity, and the pattern can be accurately identified even from a distance.

In the optical display device according to the second aspect of the invention, the light from the light source is reflected by the light dispersion body or refracted inside. In this case, since the light source is rotating, light in all directions is scattered from the light dispersion body, and the scattered light is rich in variation. Such light is transmitted through the transparent member provided in the container to create a varied light pattern on the surface of the container. If the light source is a laser, the light has sharp directivity, and the pattern can be accurately identified even from a distance.

[0009]

1 is a perspective sectional view of an essential part of an optical display device 1 according to an embodiment of the first invention. In the optical display device 1 according to this embodiment, a light source 3 and a polyhedron 4 as a light dispersion body for reflecting light from the light source 3 and refracting and dispersing incident light are provided in a box body 2 as a container. And a motor 5 as a rotating means for rotating the polyhedron 4, and transmits the light from the polyhedron 4 to one surface 6 of the box body 2 on an extension line of the light source 3 and the polyhedron 4. A transparent member is attached.

The box body 2 is entirely made of an acrylic plate, and a milky-color acrylic plate as a transparent member is attached to one surface 6 corresponding to the front surface so that the light from the polyhedron 4 can be reflected. It allows light to pass through and creates a pattern of light on its surface. The material of the transparent member may be an acrylic plate or another synthetic resin, for example, a milk-colored plastic plate or a milk-colored glass plate. Further, the color is not limited to milky color, but may be transparent synthetic resin or glass with matt finish, and has transparency such that the dispersion of light produced by the polyhedron 4 can be displayed on the outer surface of the box 2. Just do it. Although the box 2 is used as the container in this embodiment, the container may have any shape,
For example, it may be of a substantially cylindrical shape. Further, the permeable member may be provided at any portion, for example, all the parts except the bottom surface of the container may be the permeable member, or the entire container may be the permeable member. This is because, in the optical display device according to the present invention, light is scattered by the light disperser, and it is possible to create a varied light pattern in a wide range.

The light source 3 is attached to a substantially L-shaped arm 3a with its light emission port facing the polyhedron 4. The light source 3 is preferably a laser, especially a semiconductor laser.
This is because laser light has good coherence, can reduce the spread of the beam, and is light with a sharp directivity. When a semiconductor laser is used, advantages such as small size and low driving power can be utilized. A lens 3b (not shown) capable of adjusting the beam diameter of the laser light is attached to the light emission port. When the beam diameter is substantially the same as the diameter of the polyhedron 4, the entire pattern is clearly displayed. In the optical display device 1 according to this embodiment, the beam diameter is adjusted in advance by the lens 3b. Therefore, a clear pattern can always be projected. The emission color of the laser can be selected by changing the element. In addition, the direction of light can be sequentially rotated (for example, by rotating the light source itself, and linear movement is also possible).
The projection position on the can be changed. This laser 3
It is also possible to project a plurality of lights onto the polyhedron 4 by using a plurality of. The light source 3 is not limited to a laser, and for example, a light bulb may be used as the light source and the beam diameter may be narrowed by a slit.

The polyhedron 4 is mainly made of a transparent material (for example,
It is made of glass, plastic, crystal, etc.) and is not limited to be transparent, but may be a colored material. In this embodiment, the polyhedron has a spherical shape, but it may be a prism having a triangular prism shape or any other polyhedron capable of sufficiently dispersing light in various directions as the polyhedron in the present invention. In addition, the light disperser disperses light. Here, "dispersion" is broader than the optical meaning and means that light is reflected or incident light is internally refracted and scattered. is doing.
The light dispersion is not limited to a polyhedron, but may be a sphere, a cylinder, a gourd or a cone, or the polyhedron 4 may be incorporated in the sphere.

The motor 5 is connected to a power source 7,
The polyhedron 4 is supported on the rotating shaft 51 and is rotated. The motor 5 is attached to the bar 5a fixed to the tip of the arm 3a via a screw or the like. As the power source, a commercial power source may be used after being decompressed, or a battery may be used. The polyhedron 4 on the rotating shaft 51 is supported so that it can be arbitrarily replaced with another polyhedron. Further, the rotation speed of the motor 5 can be adjusted.

In FIG. 1, reference numeral 8 is a switch for the power source, and reference numeral 9 is a switch for a fluorescent lamp (not shown) mounted inside the box 2. In this embodiment, the light source 3, the polyhedron 4 and the motor 5 are housed in the box body 2.
May be attached to the outside of the box body 2, or the power source 7 may be attached to the outside.

FIG. 2 illustrates how the light from the light source 3 is dispersed in the rotating polyhedron 4. This Figure 2
In, the polyhedron 4 is rotating in the counterclockwise direction as shown by the arrow, and when the optical path indicated by the solid line is the optical path at the time of starting rotation, the optical path indicated by the dotted line and the optical path indicated by the alternate long and short dash line according to the rotation Such changes occur periodically for each surface of the polyhedron 4. As shown in FIG. 2, there are a large number of light beams emitted from the inside of the polyhedron 4 and their directions. This FIG. 2 is merely two-dimensionally illustrated, and originally the light dispersed in three dimensions is emitted from the polyhedron 4 to the outside at individual angles, and the light reflected on the transmissive member can be seen three-dimensionally. .

Next, an embodiment according to the second invention is shown in FIG. In this embodiment, the light source 3 itself is configured to rotate around the polyhedron 4. For example, in FIG.
The light source 3 may be attached to the turntable 30 as shown in FIG. 3, and the turntable 30 may be rotated via a belt 31 and a pulley fixed to the rotation shaft of the motor 32. Even with such a configuration, light from the polyhedron 4 can be transmitted through the transparent member, and a moving pattern rich in variety can be created on the surface of the transparent member. Therefore, the viewer can be given a fresh impression and the viewer's attention can be obtained. In addition, also in the embodiment according to the second invention,
The motor 32 may be attached to the outside of the container, or the power source may be attached to the outside.

If the optical display device according to the above embodiment is used as an advertising lamp, it is possible to provide a novel advertising lamp which can attract the attention of the viewer. Further, as shown in FIG. 4, the optical display device according to the above embodiment can be used for the signboard 10. In this signboard 10, the light source 3, the polyhedron 4, and a motor 5 for rotating the polyhedron 4 are mounted inside, and the character portions “CS” 11 and 12 on one surface of the signboard 10 are used as a transparent member. In this case, one surface of the signboard 10 may be made a transparent member, and a mask as shown in FIG. 5 may be attached to the inside of the signboard behind the transparent member. Also in this case, only the character portion of the light rays from the polyhedron 4 is transmitted to the outside, and a moving pattern rich in variety can be created in the character portion. Therefore, the viewer can be given a fresh impression and the viewer's attention can be obtained. The optical display device according to the present invention can also be used as a decoration, and in this case, it may be combined with an audio device or the like. For example, the operation of the optical display device is interlocked with ON / OFF of an audio device, and frequency detection means for detecting the frequency of sound is provided, and the rotation speed of the motor 5 is controlled according to the detection result. Alternatively, the colored light may be controlled. In addition, the optical display device may be interlocked with ON / OFF of a temperature sensor that detects the temperature.

Further, the optical display device according to this embodiment can be applied to a visual acuity test device by utilizing the property that the directivity of the laser is sharp. For example, whether or not the change in the pattern of the light transmitting member can be accurately recognized can be used as a criterion for the visual acuity test.

[0019]

In the optical display device according to the first aspect of the present invention, the light of the light source is reflected by the light dispersion body or internally refracted, and the light in the predetermined direction is scattered from the light dispersion body. Since the light disperser is rotating, the scattered light is highly variable. Such light is transmitted through the light transmitting member to create a variety of light patterns on the surface of the container.

Further, in the optical display device according to the second aspect of the present invention, the light from the light source is reflected by the light dispersion body or refracted inside, and since the light source is rotated by the light source rotating means, it can be rotated in all directions. Light is scattered from the light dispersion. The scattered light is rich in variation, and passes through a part of the light transmitting member to create a varied pattern of light on the surface of the container. Therefore, both the first invention and the second invention can provide a novel optical display device capable of attracting the attention of the viewer. If the light source is a laser, the light has sharp directivity, and an optical display device capable of accurately identifying the pattern even from a distance can be provided.

[0021]

[Brief description of drawings]

FIG. 1 is an optical display device 1 according to an embodiment of the present invention.
FIG.

FIG. 2 is an optical display device 1 according to an embodiment of the present invention.
Explanatory diagram showing scattering of light due to rotation by a polyhedron constituting the.

FIG. 3 is a perspective view showing a configuration example of a light source rotation unit that constitutes the optical display device according to the present invention.

FIG. 4 is a perspective view of a signboard when the optical display device according to the present invention is applied to the signboard.

5 is a perspective view of a mask used for the signboard shown in FIG.

[Explanation of symbols]

 1 Display Device 2 Housing 3 Light Source 4 Polyhedron 5 Rotating Means 6 Transparent Member

Claims (6)

[Claims] 1. A light source, a light disperser that disperses the light of the light source, a rotating unit that rotates the light disperser, and a container that houses the rotating unit, the light disperser, and the light source. An optical display device, wherein a part of the container is a transparent member. 2. The optical display device according to claim 1, wherein the light dispersion body is a polyhedron made of a transparent material. 3. The optical display device of claim 1, wherein the light source is a laser. 4. A light source, a light disperser that disperses the light of the light source, a light source rotating unit that rotates the light source about the light disperser, a light source rotating unit, the light disperser, and the light source. An optical display device comprising: a housing for housing, wherein a part of the housing is a transmissive member. 5. The optical display device according to claim 4, wherein the light dispersion body is a polyhedron made of a transparent material. 6. The optical display device according to claim 4, wherein the light source is a laser.