JP2002131697A - Stereo shadow making display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel display device which can make stereo shadow. SOLUTION: In this stereo shadow making type display device, reflection type Fresnel lenses 2 having a convex mirror function are arranged at at least two surfaces of a cabinet of a hexahedron shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic display device using a reflection type Fresnel lens.

[0002] A reflection type Fresnel lens in which metal is deposited on the lens surface of a Fresnel lens is well known.
Such a reflection type Fresnel lens is formed as a single lens or a configuration in which a plurality of lenses are arranged on a plane, and is used as a building interior material, a decoration material, and the like. However, in the conventional usage, the reflection type Fresnel lens is simply used in a planar manner such as by directly attaching the Fresnel lens to a wall surface.

[0003]

SUMMARY OF THE INVENTION The present invention has advanced from such a planar use of a reflective Fresnel lens to a three-dimensional use of a reflective Fresnel lens. The effect is obtained.

[0004]

According to the present invention, a reflection type Fresnel lens having a metal reflection film formed on a lens surface of a Fresnel lens having a convex mirror function is directed inside at least two surfaces of a hexahedral casing. A three-dimensional contrast-type display device in which at least one of the surfaces on which the reflection type Fresnel lens is not disposed is opened or transparent was constructed.

[0005] A more preferable stereoscopic imaging can be obtained by tilting the upper side of the reflection type Fresnel lens on the opposite back surface which is open or transparent so that the reflection type Fresnel lens is inclined at a maximum of about 15 ° with respect to the one surface. In the present invention, the reflection of the Fresnel lens having a convex mirror function on the two square surfaces of a housing having a substantially triangular prism shape obtained by cutting a hexahedron substantially in half in the axial direction and having an open slope is provided with a metal reflection film. All three-dimensional Fresnel lenses were arranged with the inside facing inward to form a stereoscopic display device.

[0006] A more preferable stereoscopic imaging can be obtained by inclining the reflection type Fresnel lens on one side backward by at most 15 ° with respect to the reflection type Fresnel lens on the other side. It is preferable to arrange the reflection type Fresnel lens so that the optical axis of the reflection type Fresnel lens is gathered at one point, in order to most effectively form a three-dimensional image.

It is effective that the reflection type Fresnel lens is of a red or yellow type. The color of the reflection type Fresnel lens on each wall surface may be the same color or a different color. When a decorative object is placed at a position corresponding to the inside of a stereoscopic image obtained by the stereoscopic display device of the present invention, the decorative object is perceived as if it were wrapped in the obtained stereoscopic image and contained therein. Therefore, a more prominent and unique display effect can be obtained.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings showing embodiments. Embodiment 1 FIG. 1 is a perspective view showing a stereoscopic display device of the present invention. Using a foamed styrene plate, a cubic case 1 having a side of 30 cm was made, and two surfaces, namely, the front surface A and the upper surface B were opened without any surface. On the remaining four surfaces, a reflective Fresnel lens 2 in which aluminum was deposited on the lens surface of a Fresnel lens having a lens diameter of 25 cm and a focal length of about 15 cm and having a convex mirror function was attached with the lens surface on the back side.

[0009] The three-dimensional contrast type display device is
As seen from the direction, as shown in FIG. 2, a three-dimensional image is formed as if a transparent spherical body Q exists in the housing. Although the position of the spherical body Q moves not only when viewed from the front directly in the front A direction but also in a direction shifted left and right and up and down from the front A direction, the spherical body Q moves.
Was formed and could be seen. Further, even when viewed from the upper surface B direction, the spherical body Q was formed and could be seen as when viewed from the front A direction.

Example 2 A cubic case 1 of 15 cm on a side using an ABS resin plate
Was formed, and the center was slightly shifted, cut in half in the axial direction, and a transparent acrylic resin plate was removably mounted on the slope. (Note that this transparent acrylic resin plate is not shown.) The back surface 3 and the bottom surface 4 have a lens diameter of 13 cm and a focal length of about 1
A reflection type Fresnel lens 2 in which aluminum was vapor-deposited on a lens surface of a Fresnel lens having a convex mirror function of 5 cm was attached with the lens surface on the back side. The back 3 is about 10 to the bottom 4
It was tilted back to 0 °. The optical axes of the reflection type Fresnel lenses were set to intersect.

No reflective Fresnel lens was provided on the left and right substantially triangular surfaces 5. A stalk of an artificial flower was stabbed near the intersection between the back and the bottom, so that the artificial flower was provided so as to be located substantially at the center of the housing. In this stereoscopic display device, when viewing the inside from a slope, a transparent spherical three-dimensional image can be seen from any direction in which the inside can be seen, and artificial flowers are wrapped in the spherical three-dimensional image. And an excellent display effect was obtained.

[0012]

The stereoscopic display device of the present invention can provide a novel display device, which has a very simple structure, and is capable of forming and viewing a transparent and luminous spherical three-dimensional image. This can be used to promote products, decorate show windows, etc.
An effect such as suction can be obtained, and if it is a decorative ornament in a room, it can also relieve or elevate the spirit, and can also provide an effective effect on mental health.

[Brief description of the drawings]

FIG. 1 is a perspective view of a stereoscopic display device of the present invention.

FIG. 2 is a perspective view showing a stereoscopic image created by the stereoscopic display device of the present invention.

FIG. 3 is a perspective view of a stereoscopic display device according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 housing 2 reflection type Fresnel lens 3 back surface 4 bottom surface 5 side surface 6 artificial flower a, b, c, d optical axis A front surface B top surface Q spherical imaging

Claims (5)

[Claims] 1. A Fresnel lens having a function of a convex mirror, wherein a reflective Fresnel lens having a metal reflective film formed on a lens surface is disposed on at least two surfaces of a hexahedral housing, with the inside thereof facing inward. A stereoscopic display device in which at least one of the non-arranged surfaces is open or transparent. 2. A reflection type Fresnel lens on the opposite back surface which is open or transparent and has a maximum angle of about 15 ° with respect to the one surface.
The stereoscopic display device according to claim 1, wherein the upper side is inclined backward so as to be inclined. 3. A reflection type in which a metal reflection film is formed on a lens surface of a Fresnel lens having a convex mirror function on two rectangular surfaces of a housing having a substantially triangular prism shape obtained by cutting a hexahedron substantially in half in an axial direction and having an open slope. A stereoscopic contrast display device in which all Fresnel lenses are arranged with the inside facing inward. 4. The stereoscopic display apparatus according to claim 3, wherein the reflection Fresnel lens on one surface is inclined backward by a maximum of about 15 ° with respect to the reflection Fresnel lens on the other surface. 5. The stereoscopic display apparatus according to claim 1, wherein the reflection type Fresnel lens is arranged so that an optical axis of the reflection type Fresnel lens is gathered at one point.