JP5398308B2 - Elevator display device - Google Patents

Description

  The present invention relates to an elevator display device for performing various displays in a hall and a car.

  As a conventional elevator display device, a light-emitting body is provided in an indicator lamp box having an opening on one side surface in an elevator car or a wall surface of a landing, and characters and symbols representing information to be displayed on the opening side are provided. There has been proposed a device in which an attached illuminating body is provided, and information is displayed in the elevator car or on the landing by irradiating the illuminating body from the back with the light of the light emitting body (see, for example, Patent Document 1).

  On the other hand, as an optical element that forms a three-dimensional image of the image reflected in the mirror in the air, a light-bending surface that has a function of forming a real image to a plane-symmetrical position by transmitting light while bending it, and toward the light-bending surface The light emitted from the projection is transmitted through the beam bending surface, and the image of the projection is arranged on the observation side opposite to the mirror surface across the beam bending surface. A reflective surface-symmetric imaging element that forms an image at a position reflected by a virtual mirror that is moved to a plane-symmetrical position with respect to the light-bending surface of the mirror surface by reflecting on the mirror surface and further passing through the light-bending surface is known. (See, for example, Patent Document 2).

JP 2004-182468 A JP 2008-158114 A

  In an elevator display device such as that described in Patent Document 1, the illuminating body is projected from the face plate, characters or symbols are engraved on the back surface of the illuminating body, and a large number of thin lines are drawn. While trying to improve visibility, it is trying to reduce the thickness of the display device by using a cold cathode fluorescent lamp as a light emitter.

  However, since characters and symbols are engraved on the back surface of the illuminator in order to give a three-dimensional effect, the manufacture is difficult and the cost is increased. Further, since the thickness cannot be made sufficiently small, the recent demand for thinning cannot always be satisfied.

  Accordingly, an object of the present invention is to provide an elevator display device that has a simple structure, is thin, is inexpensive, and can display stereoscopic images with good visibility.

The elevator display device according to the present invention has an opening, a frame box attached to a wall surface with the opening facing an elevator cab or landing , and a sign pattern that is provided facing the opening and is to be displayed. A display panel, a light emitter that emits light to the display board, and a reflective type that is provided between the display board and the opening and reflects the light from the display board to form a mirror image of the display board An elevator display device comprising a plane-symmetric imaging element.

  According to the elevator display device of the present invention, a three-dimensional display with a simple structure, a thin thickness, a low price, and good visibility can be achieved.

It is a schematic sectional drawing which shows one Embodiment of the elevator display apparatus of this invention. It is a schematic plan view which shows the display board of the elevator display apparatus of FIG. It is a schematic plan view which shows the reflection type plane-symmetric image formation element used for the elevator display apparatus of FIG. FIG. 4 is an enlarged perspective view of a portion surrounded by a circle A in FIG. 3.

  Embodiments of the present invention will be described below.

Embodiment 1 FIG.
FIG. 1 is a schematic sectional view showing an embodiment of the elevator display device of the present invention, FIG. 2 is a schematic plan view showing a display plate of the elevator display device of FIG. 1, and FIG. 3 is an elevator display device of FIG. FIG. 4 is a schematic plan view showing a reflection-type plane-symmetric imaging element used in FIG. 4, and FIG. 4 is an enlarged perspective view of a portion surrounded by a circle A in FIG.

The elevator display device is attached to a wall opening 2 formed in an elevator cab or landing wall 1 and has a frame box 4 having an opening 3 arranged facing the cab or landing , and the frame box 4 And a display board 6 having a marker pattern 5 including characters, symbols and figures to be displayed, and a light emitter 7 provided in the frame box 4 for irradiating the display board 6 with light. A reflective plane-symmetric imaging element 9 provided between the display plate 6 and the opening 3 in the frame box 4 and reflecting the light from the display plate 6 to form a mirror image 8 of the display plate 6. Yes.

  The frame box 4 has the opening 3 fitted in the wall opening 2, and is attached to the back surface of the wall 1 with a screw 11 by a flange 10, and a light emitter 7 is attached to the inside of the bottom portion. A mounting tab 12 is provided in the frame box 4 at a portion close to the opening 3, and a light shielding cover 13 is attached to the lower surface of the mounting tab 12 in FIG. 1. 6 is attached. A reflection-type plane-symmetric imaging element 9 and a transparent plate 14 are placed on the upper surface of the mounting tab 12 in FIG. 1, and a face plate 15 that covers the opening 3 is provided. From the back surface of the face plate 15, bolts 16 penetrating the transparent plate 14, the reflection type plane-symmetric imaging element 9, the mounting tab 12 and the light shielding cover 13 are extended and fastened by nuts 17. As described above, not only the display plate 6, the light emitter 7, and the reflection-type plane-symmetric imaging element 9, but also the light shielding cover 13, the transparent plate 14, and the face plate 15 are all supported by the frame box 4. It is attached to the wall 1 of the hall by a flange 10 and a screw 11.

  As shown in FIG. 2, the display board 6 is a light transmissive type in which a sign pattern 5 which is a pattern including characters, symbols and figures such as arrows is drawn on a transparent or translucent board member. The light emitted from the light-emitting body 7 provided is transmitted through the light, and through the reflective surface-symmetric imaging element 9, the display plate 6, that is, the mirror image 8 of the marker pattern 5 on the display plate 6, passes from the hall wall 1. It is formed at a distant position.

  The reflection-type plane-symmetric imaging element 9 is a plate-like member in which a large number of minute through holes 21 whose inner surfaces are reflecting mirror surfaces are provided on one surface of the substrate 20, and the through holes 21 have corners of a substantially square cross section. The optical element includes a two-surface corner reflector 24 that is formed of two micromirrors 22 and 23 that are columnar and whose inner wall is mirror-finished and orthogonal to each other.

  An example of the reflective surface-symmetric imaging element 9 that can be used for the purpose of the present invention is a known optical element described in Japanese Patent Application Laid-Open No. 2008-158114. In the example shown in FIGS. 3 and 4, the reflection-type plane-symmetric imaging element 9 has a substrate 20 having a thickness of, for example, 100 microns and a large number of minute through holes 21 whose inner surfaces are reflecting mirror surfaces. Is. The through holes 21 each have a square column shape with a square cross-section of, for example, 100 μm on one side, and are arranged in parallel with each other at, for example, 50 μm intervals. The inner wall of the through hole 21 is mirror-finished, and the two inner walls that are mirror-finished and perpendicular to each other become the micromirrors 22 and 23, and are arranged in a number of two-surface corner reflectors that face one direction. 24 is configured.

  By installing a display board 6 having a marker pattern 5 behind such a reflective plane-symmetric imaging element 9 and illuminating it with the light emitter 7, when the light emitted therefrom passes through the through-hole 21, the micromirror Since the mirror image 8 is formed by being reflected twice by 22 and 23, when the reflection-type plane-symmetric imaging element 9 is viewed from the front side, the rear display board 6, that is, the marker pattern 5 such as an arrow, is lifted up, and the three-dimensional effect is obtained. It can be put out, the visibility becomes high, the alertness can be improved, and the design is excellent. Therefore, it is possible to reduce the thickness of the display panel 6 that has conventionally been required to protrude in order to have a depth and to make it appear three-dimensionally, thereby reducing the thickness and reducing the material cost. Further, there is no need for the concave arrow mark engraved in order to give the back surface of the display board 6 a three-dimensional effect, and the working time and cost can be reduced.

  Such an elevator display device is particularly effective when used as an operation indicator, a call button, a direction floor indicator, and the like. When used as an operation indicator light mounted on the operation panel in the car, when a door is opened by a two-way elevator, or when a disaster such as a fire, power failure, or earthquake occurs It can be used for alerting purposes. In addition, the elevator display device is applied to the floor registration button mounted on the operation panel etc. in the car, and the floor registration is performed by pressing the button, and the registered button is lit until it reaches the floor. Can be maintained. Further, the elevator display device can be applied to an indicator that is installed in a car or a landing and provides information on the traveling direction of the car and the floor that is currently passing through.

  The elevator apparatus illustrated and described above is merely an example, and various modifications can be made, and the features of each specific example can be used altogether or selectively combined. For example, the display board 6 having the marker pattern 5 is a light-reflective display board that does not transmit light, and the light emitter 7 is disposed between the display board 6 and the reflective surface-symmetric imaging element 9. The mirror image 8 may be formed by reflected light from the display board 6.

  The present invention can be used as an elevator display device.

  1 Wall, 2 Wall Opening, 3 Opening, 4 Frame Box, 5 Marking Pattern, 6 Display Board, 7 Light Emitter, 8 Mirror Image, 9 Reflective Surface Symmetric Imaging Element, 10 Flange, 11 Screw, 12 Mounting Tab, 13 Light-shielding Cover, 14 Transparent plate, 15 Face plate, 16 Bolt, 17 Nut, 20 Substrate, 21 Through hole, 22, 23 Micro mirror, 24 Two-sided corner reflector.

Claims (6)

A frame box that has an opening, faces the opening to an elevator cab or landing , and is attached to a wall surface;
A display board provided facing the opening and having a sign pattern to be displayed;
A light emitter that emits light to the display plate;
An elevator display device comprising: a reflection-type plane-symmetric imaging element provided between the display plate and the opening and configured to reflect light from the display plate to form a mirror image of the display plate .   The elevator display device according to claim 1, wherein the frame box supports the display plate, the light emitter, and the reflection type plane-symmetric imaging element.   The elevator display device according to claim 1 or 2, wherein the display panel is a light transmission type display panel, and the mirror image is formed by the transmitted light of the display panel.   The elevator display device according to claim 1 or 2, wherein the display plate is a light reflection type display plate, and the mirror image is formed by reflected light of the display plate.   The reflection-type surface-symmetric imaging element is provided with a large number of minute through-holes having a reflecting mirror surface on the inside of the substrate, the through-holes having a prismatic shape with a substantially square cross section, and the inner wall being mirror-finished. The elevator display device according to any one of claims 1 to 4, further comprising a two-surface corner reflector configured by two micromirrors that are adjacent to each other and orthogonal to each other.   The elevator display device according to any one of claims 1 to 5, wherein the reflection-type plane-symmetric imaging element is covered with a transparent plate.

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