JPH03217925A - On-display screen information input device using hologram display - Google Patents

Abstract

PURPOSE:To use a displayed aerial object as part of an information input device and to realize input with degree of freedom higher than ever on a stereographic screen by using a stereographic image of hologram and a position detection sensor. CONSTITUTION:The on-display screen information input device 1 is provided with the hologram 2 which reproduces the stereographic image, and a prescribed number of two-dimensional position detection sensors 3 consisting of a diode array 4 which emits information and an infrared ray rightward and a phototransistor array 5 are provided at the device. By employing such arrangement, a three-dimensional position detection sensor 6 which detects the three- dimensional position of the tip of a finger 8 can be comprised. Also, it is provided with an illuminator 7, and the stereographic image can be reproduced in depth 1 by irradiating the hologram 2. When a user extends the finger 8 so as to bring into contact with the aerial object, the information is inputted to a computer, and the position of an inputted finger tip is judged.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an input device for inputting information by selecting a specific position on a display screen with a finger, for example. The present invention relates to a device for inputting information on a display. This device is useful, for example, as an interactive input device in multimedia presentation systems and educational systems.

[Conventional technology]

Conventional information input devices on a display screen input information according to the displayed image by touching the CRT display surface or a transparent panel placed in front of it with a finger without looking at the menu screen displayed on the CRT. was.

The input principle in this case is to detect the position of the touching finger,
This is to input the location information.

By the way, holograms are known as a medium that can faithfully reproduce three-dimensional images. With holograms, it is also possible to change the image depending on the viewing position or add simple movement to the image using techniques such as multiple exposure and multi-blend holograms.

[Problem to be solved by the invention]

However, in conventional touch panel input devices, images are displayed using a CRT, so only flat images can be displayed, and it is not possible to bring the finger closer to the menu screen or input with the finger within a screen with depth. . In this case, the input device itself is not attractive to users. In addition, there are cases where you cannot input on a 3D screen.
It was not possible to perform input with a higher degree of freedom.

In addition, apart from touch panel input devices, some technologies for displaying 3D images on monitors have been put to practical use, but they are expensive, require the viewer to use special glasses, etc. It was unsuitable for observation over a relatively short period of time.

Furthermore, conventional hologram exhibitions were basically passive media for viewing, and in some ways they were just rare. Holograms have been used in educational applications as a substitute for models, but because it is not possible to actually touch the object, it is difficult to appeal to the viewer's sense of participation.

Therefore, an object of the present invention is to provide an on-screen information input device using a hologram display that positions holograms as a spatial information input device and integrates and utilizes the excellent stereoscopic image reproducibility of holograms in an interactive system. That's true.

[Means to solve the problem]

The on-screen information input device using a hologram display of the present invention includes a hologram that displays a three-dimensional image (menu) and some kind of position detection sensor that is installed in front of the hologram and detects the position of an inserted input means such as a finger. The configuration includes a hologram and an illumination device that illuminates the hologram in order to reproduce a three-dimensional image. In addition, multiple 3D images can be recorded multiplexed on the hologram without changing the reference angle, and a different 3D image (menu) can be played back by changing the illumination direction based on information from the position detection sensor. Additionally, a lighting device can also be constructed.

Any existing means can be used as a position detection sensor that detects the position of a finger or the like.

These are illustrated below.

First, as a non-contact type, there is an infrared shielding type CRT-mounted touch sensor in which an infrared LED and a light-receiving element are attached to a CRT monitor of a computer. By connecting this touch sensor to a computer, it becomes possible to determine coordinates in both the horizontal and vertical directions.

As other non-contact position detection sensors, various non-contact sensors such as a reflected light type, a light shielding type, and an ultrasonic type can be used.

Next, as a contact type touch sensor, a sheet type touch sensor such as a resistive film 2 can be used by attaching it to the hologram surface or a transparent plate in front of the hologram.

[Effect]

When you extend your finger or other object to touch the imaginary three-dimensional object displayed on the hologram, a position detection sensor detects its position, inputs that information to a control device such as a computer, and triggers the next action. becomes. In addition, this trigger causes the control device to switch the illumination direction of the hologram, and the stereoscopic display image of the hologram changes.

By using a sensor that can detect coordinates and a control device, it is also possible to perform different actions depending on the position where a finger or the like is inserted.

〔Example〕

Next, an embodiment of an on-screen information input device using a hologram display according to the present invention will be described with reference to the drawings.

As shown in FIG. 1, this on-screen information input device 1 has a rainbow type hologram 2 for reproducing a three-dimensional image within a depth 1, and in front of the hologram 2, in the depth direction, as shown in FIG. As shown in a perspective view, a two-dimensional position detection sensor 3 is composed of a light emitting diode 4 array that emits infrared light upward and to the right, and a phototransistor 5 array disposed at a position facing the light emitting diodes 4.
The required number of layers (only about two layers are shown in FIGS. 1 and 3 to simplify the drawings) are spaced apart from each other. As shown in FIG. 2, each two-dimensional position detection sensor 3 has an optical path from a light emitting diode 4 to a phototransistor 5 arranged in a matrix.
Since the finger 8 inserted into this matrix blocks the vertical and horizontal optical paths passing through that position, this blocking position is detected two-dimensionally by the signal obtained from the array of transistors 5. It is. By arranging such two-dimensional position detecting sensors 3 in a layered manner within the depth l where the stereoscopic image in front of the hologram 2 is reproduced, a three-dimensional position detecting sensor 6 that detects the three-dimensional position of the tip of the finger 8 is created.
can be configured. The on-screen information input device 1 also includes an illumination device 7 for reproducing a stereoscopic image from the hologram 2. Therefore, the hologram 2 is irradiated with reproduction light from the illumination device 7 to reproduce a three-dimensional image within the depth l. This image may be a menu screen or a three-dimensional object as shown in the figure.

When the user extends his finger 8 to touch the imaginary three-dimensional object displayed on the hologram 2, the three-dimensional position detection sensor 6 detects the position, and the information is input to a control device such as a computer, and the three-dimensional object is displayed on the hologram 2. It is determined to which part (position) of the image the finger 7 has been moved. The position signal thus input becomes a trigger signal for performing some next operation. Furthermore, the control device can be configured to switch the illumination direction of the hologram 2 and change the stereoscopic display image of the hologram based on this trigger signal. FIG. 4 shows an embodiment of the presentation system configured in this manner.

In FIG. 4, the information input device 1 is equipped with two illumination devices 71 and 72 for reproducing the rainbow hologram 2, and the hologram 2 is multiple-exposed with two three-dimensional images. The lighting devices 71, 72 and the hologram 2 are positioned so that when one lighting device 71 is turned on, one image is played back, and when the other lighting device 72 is turned on, another image is played back. A relationship is set. Three-dimensional position detection sensor 6 of information input device 1
The position signal from the controller is connected to be input to the control personal computer 10. The control personal computer 10 is the Teruta device 7
A light switching machine 1l that lights up either 1 or 72,
It is connected to control the video disc playback device 12. A video monitor 13 is connected to the video disc playback device l2. In such a system, one of the lighting devices 71, 72 is always on and only one image can be seen. When the user tries to touch the 3D image, the 3D image placed in front of the hologram 2
The dimensional position detection sensor 6 reacts, and the coordinates of the position touched by the hand are input to the personal computer 10. Based on the information, first, the light switching device 11 is operated under the personal computer control, the reproduction device 7172 of the hologram 2 is switched, and the other image of the hologram 2 is displayed. Next, the three-dimensional position detection sensor 6 detects the position of the finger inserted without looking at the other image, and based on the input coordinates, information related to the hologram 2 image is played back on a computer-controlled video disc. Images in the device 12 are retrieved and displayed on the video monitor 13.

In addition, in each of the above embodiments, it is assumed that the three-dimensional position detection sensor 6 that three-dimensionally detects the position of the finger 8 is used, but it is not necessarily necessary to use the three-dimensional position detection sensor 6, and two A dimensional position sensor may be sufficient in some cases. Furthermore, the position detection sensor is not limited to the infrared shielding type sensor as described above, but various non-contact type sensors such as a reflected light type, a light shielding type, and an ultrasonic type can be used. Furthermore, a sheet-type touch sensor such as a resistive film type can be used by attaching it to the hologram surface or to a transparent plate in front of the hologram.

〔Effect of the invention〕

The present invention utilizes a imaginary object displayed in space as if it were part of an information input device by using a hologram stereoscopic image and a position detection sensor.
The input device itself becomes attractive to the user, and since input can be performed on a three-dimensional screen, input can be performed with a higher degree of freedom.

[Brief explanation of drawings]

FIG. 1 is a perspective view (a) and a sectional view To of an information input device on a display screen using a hologram display according to an embodiment of the present invention.
), Fig. 2 is a diagram for explaining the structure and operation of an infrared shielding type two-dimensional position detection sensor, and Fig. 3 shows a three-dimensional position detection sensor constructed by combining the two-dimensional position detection sensors shown in Fig. 2. FIG. 4 is a perspective view for explaining this, and is a system configuration diagram of a presentation system using the on-screen information input device of the present invention. 1... Information input device on the display screen by Honhatsu Hu, 2...
・Rainbow type hologram, 3... Two-dimensional position detection sensor, 4... Light emitting diode, 5... Phototransistor, 6... Three-dimensional position detection sensor, 7
, 71, 72...Lighting device, Death...Finger, 10...Control computer, 11...Light switching machine, 12...
・Video disc playback device, 13...Video monitor Applicant: Dai Nippon Printing Co., Ltd.

Claims (1)

[Claims] (1) A hologram capable of displaying a three-dimensional image, a position detection sensor installed in front of the hologram for detecting the position of an input means such as a finger inserted, and a position detection sensor for reproducing an image from the hologram. 1. An information input device on a display screen using a hologram display, characterized in that an illumination device is provided. (2) The hologram is a multiplex recording of a plurality of images with different angles of reproduction light, and the illumination device is configured to select one of the reproduction lights with different angles. 2. The on-screen information input device using a hologram display according to claim 1. (3) The on-screen information input device using a hologram display according to claim 2, characterized in that the angle of reproduction light from the illumination device is changed based on information from the position detection sensor. (4) The information input device on a display screen using a hologram display according to any one of claims 1 to 3, wherein a sensor capable of three-dimensional position detection is used as the position detection sensor. (5) The on-screen information input device using a hologram display according to any one of claims 1 to 4, wherein a non-contact type sensor is used as the position detection sensor. (6) The on-screen information input device using a hologram display according to any one of claims 1 to 4, wherein a contact type sensor is used as the position detection sensor.