JPH06348404A - Method and device for inputting data - Google Patents

Abstract

PURPOSE:To make it unnecessary to grasp an input device or the like and to attain the contactless input of data to the device. CONSTITUTION:A picture 5 on a display screen 2 displaying an input item is projected to a required space as a real image 10 by a picture projecting means 1, an object such as a finger inserted into the space to which the real image 10 is projected is detected by an object position detecting means 21 and data are inputted to the input device based upon the positional information of the object and the positional information of the input item in the projection screen. In addition, an operator can confirm the execution of data input by blowing off an air jet to the inserted finger.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data input method and device for inputting data necessary for operating the device such as a control command for designating operation items of the device when operating the device.

[0002]

2. Description of the Related Art Conventionally, when a device such as an electronically controlled device is operated in a predetermined manner, when a data such as a control command is input to the device, a control panel having a large number of switches for designating input items is provided. Input device is used. Here, in general, the input device may be capable of controlling a plurality of electronic devices at the same time, and has a multi-functional structure capable of controlling a plurality of functions even when controlling a single electronic device. There is.

In the input device having such a control panel, when the number of electronic devices to be controlled and the number of control functions are increased, the panel surface becomes complicated and the operation becomes complicated.
Therefore, the control panel surface of the input device is grouped into a control part of a single device and a control part having the same control function, and is displayed on a TV screen or a monitor screen of a computer. This grouping is partially displayed. Among the screens, there is one in which the operator actively selects the required control part.

As described above, on the TV screen or the monitor screen, as a means for actively selecting the input items of the screen displayed therein, that is, for indicating a specific portion by the intention of the operator, the front part of the screen is displayed. Touch panel provided,
Conventionally commonly used man-machine interfaces such as a pointing device such as a photo pen and a mouse are used.

If a hardware control panel is a control panel using the above-mentioned substantive switches and a display, a control panel for performing a selection operation on a screen displayed on a monitor or the like, which will be described later, is provided. What is used can be a software control panel.

[0006]

By the way, in the above-mentioned conventional software type control panel, in the case of using a light pen, a mouse, etc., the operator grasps these pointing devices. However, it is necessary to operate this to perform an input operation, and there is a problem that such an object cannot be used for a device in a usage mode in which it is difficult to grip. Further, when data is input, it is necessary to bring a finger or the like into contact with the pointing device, and there is a problem that the pointing device is soiled or the soiled finger is brought into contact with the soiled pointing device.

Further, in the case of using the touch panel, it is not necessary to hold the pointing device, but it is necessary to bring fingers or the like into contact with the touch panel.
Similarly, there is a problem that the touch panel surface is soiled or fingers and the like are soiled. Therefore, it is an object of the present invention to provide a data input method and a device that do not need to grip an input device or the like and can input data to the device in a non-contact manner.

[0008]

The first means for solving the above problems in the present invention is, in a data input method for inputting data to a device, an image display means for displaying an image representing a predetermined input matter. Displayed on the screen, the projected screen is projected as a real image in the space, the position of the inserted object is detected by the object position detecting means in the space where the screen is projected, and the object position detecting means detects the position. The input data is generated based on the position information of the object and the position information of the figure on the projected display screen.

The second means of the present invention is, in the data inputting method for inputting data to a device, displaying an image representing a predetermined input matter on the screen of the image display means and requiring the displayed screen. In the space where the screen is projected, the position of the inserted object is detected by the object position detecting means in the space where the screen is projected, and the position information of the object detected by the object position detecting means and the projected display That is, the input data is generated based on the position information of the figure on the screen, and the signal indicating that the position of the object is detected is output based on the detection of the object.

The third means of the present invention, as shown in FIG. 1, displays an image 5 representing a predetermined input item to the device 40 on the display screen 2 in a data input device for inputting data to the device. The image display means 3 and the image projection means 1 for projecting the image 5 displayed on the display screen 2 in the space as a real image 10, and the object inserted in the space in which the real image 10 is projected are detected by the sensor 17. Then, the object position detecting means 20 for detecting the position of the object, the position information of the object detected by the object position detecting means 20, and the position information 8 of the input matter on the projected display screen are input to the device. And an input data generating means 4 for generating input data of an item to be provided.

The fourth means of the present invention, as shown in FIG. 1, displays an image 5 representing a predetermined input item to the device 40 on the display screen 2 in a data input device for inputting data to the device. The image display means 3 for displaying, the image projection means 1 for projecting the image 5 displayed on the display screen 2 into a space as a real image 10, and the sensor 17 for an object inserted into the space where the real image 10 is projected. Object position detecting means 20 for detecting the position of the object by detecting with
Input data generating means 4 for generating input data of items to be input to the device based on the position information of the object detected by and the position information 8 of the input matter on the projected display screen.
And a confirmation signal generating means 21 for outputting a signal indicating that the position of the object is detected based on the detection of the position of the object from the signal output device 22.

Further, as a fifth means of the present invention, as shown in FIG. 1, in the data input device for inputting data to the device, the object designated by the data designating unit is detected by the sensor 17.
Object position detecting means 20 for detecting the position of the object by detecting with
An input data generating means 4 for generating input data to be input to the device based on the position information of the object detected by the object position detecting means 20 and the position information 8 of the figure in the projected display screen; Based on the detection of the position of the object, the signal output unit 22 outputs a signal indicating that the position of the object is detected.
And the confirmation signal generating means 21 for outputting from.

As shown in FIG. 1, the sixth means of the present invention is the same as the third to fifth means, wherein the sensor 17 for detecting the object is reflected by the laser light generating means 18 and the object. Light detection means 19 for detecting laser light
That is, the object position detection means 20 detects the position of the object based on the output of the light detection means 19.

Further, as a seventh means of the present invention, as shown in FIG. 1, in the fourth to sixth means, the signal output device 22 is directed toward an object inserted in the space where the real image is projected. The confirmation signal generating means 21 is a plurality of air blowing means for sending air by means of a driving unit that selectively drives the air blowing means. Furthermore, the eighth means of the present invention is as shown in FIG.
As shown in FIG. 5, in the third, fourth, fifth and sixth means, the image projection means 1 has a semi-transparent mirror 16 which is provided so as to be inclined with respect to the display screen 2 and is inclined with respect to the semi-transparent mirror. It is configured by one or two retroreflective plates 13 and 14 provided as above.

[0015]

According to the first means of the present invention, when inputting data to the apparatus, an image representing a predetermined input item is displayed on the screen of the image display means, and the displayed screen is projected as a real image in space. Then, in the space where the screen is projected, the position of an object such as a finger inserted for data input designation is detected by the object position detecting means, and the position information of the object detected by the object position detecting means and the projection The input data is generated based on the positional information of the figure in the displayed display screen. Therefore, it is possible to input data to the device without contacting the input device without having to have the device simply by inserting an object such as a finger into the image displayed in the space.

Further, according to the second means of the present invention, in the data input method for inputting data to a device, an image representing a predetermined input item is displayed on the screen of the image display means,
The displayed screen is projected as a real image in a required space, and the position of an object such as a finger inserted for data input designation is detected by the object position means in the space where the screen is projected to detect the object. The input data is generated based on the position information of the object detected by the means and the position information of the figure on the projected display screen, and a signal indicating that the position of the object has been detected is detected based on the detection of the object. Output. Therefore, it is possible to input data to the device without touching the input device without inserting a device by simply inserting an object such as a finger into the image displayed in the space. Since a signal indicating that the position has been detected is given, it is possible to obtain information that data has been input to the input device.

According to the third means of the present invention, the image display means displays an image showing predetermined input data to the device on the display screen, and the image projection means displays the image displayed on the display screen in the space. Project it as a real image. Then, the object position detecting means detects the position of the object by detecting an object such as a finger inserted for data input with a sensor in the space where the real image is projected, and the input data generating means, The input data to be input to the device is generated based on the position information of the object detected by the object position detection means and the position information of the figure on the projected display screen. Therefore, it is possible to input data to the device without contacting the input device without having to have the device simply by inserting an object such as a finger into the image displayed in the space.

According to the fourth means of the present invention, in addition to the operation of the third means, the confirmation signal generating means detects that the position of the object is detected based on the detection of the position of the object. Is output from the signal output device. Therefore, it is possible to input data to the device without touching the input device without inserting a device by simply inserting an object such as a finger into the image displayed in the space. Since a signal indicating that the position has been detected is given, it is possible to obtain information that data has been input to the input device.

According to the fifth means of the present invention, in the data input device for inputting data to the equipment, the object position detecting means detects the object designated by the data designating section by the sensor and detects the position of the object. The input data generating means detects the position information of the object detected by the object position detecting means and the position information of the figure in the projected display screen, and generates input data to be input to the device. The confirmation signal generating means outputs a signal indicating that the position of the object has been detected from the signal output device based on the detection of the position of the object. Therefore, in addition to being able to input data to the device without contacting the input device, an object for data input is given a signal indicating that the position of the object has been detected. Can be obtained.

According to the sixth means of the present invention, in addition to the functions of the third to fifth means, the laser light from the laser light generating means which is a sensor for detecting an object is reflected by the selected object, The object position detecting means detects the position of the object based on the signal detected by the light detecting means for detecting the laser light. Therefore, the position of the object can be accurately detected with a simple device.

According to the seventh means of the present invention, in addition to the fourth to sixth means, a plurality of blower means, which are signal output devices, are selectively driven by the confirmation signal generating means to produce a real image. Since the wind is sent toward the object inserted in the projected space, if the object pointed for data input is a finger, etc., the data is input to the input device by feeling the wind with the finger. Can get the information that

According to the eighth means of the present invention, the third,
In addition to the actions of the fourth, fifth and sixth means, in the image projection means, a part of the light emitted from the screen is transmitted (or reflected) through the semi-transparent mirror and reflected by the retroreflection plate, and the retroreflection plate. When taking a light path similar to the light path incident on, the semi-transparent mirror reflects (or transmits) a part of the light and collects at the conjugate point of the semi-transparent mirror to form a real image, which appears to float in the air. appear. Therefore, according to this means, the image projection means can be configured with a relatively simple device.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a data input method and device according to the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing a data input device to which the data input method according to the present invention is applied.

In this embodiment, the input device is an input device that can be used for general purposes. In FIG.
1 is an image projecting means, 2 is an image display device which is a display screen, and C
It is composed of an RT, a liquid crystal display device, and the like. 3 is an image display device 2
An image display circuit as an image display unit for displaying the required image 5 on the display. In this embodiment, the image display 2
The image display circuit 3 and the image display circuit 3 form a monitor unit of a main control unit (CPU) 41 controlled by a microcomputer.

The CPU 41 has an operation panel pattern memory 9 for storing patterns of input items of a plurality of operation panels.
In accordance with each operation panel pattern, the operation unit coordinate memory 6 that stores the position information 8 of the input items of the plurality of operation units in each pattern, and the function information of the plurality of operation units in each pattern are stored. The operating function memory 7 is provided. Also,
The operation panel pattern memory 9 is provided with an operation panel selection pattern as an initial screen.
A plurality of operation panels can be selectively displayed by selecting desired operation panel display data.

For example, when an input device of an audio device is taken as an example, the operation panel surfaces of various electronic devices such as a radio, a tape recorder, and a CD player are individually operated as a switch array and an array pattern of indicators. It is stored in the panel pattern memory 9 and any one of them is selected from the initial display screen. The panel pattern of the operation panel displayed on the image display 2 under the control of the CPU 41 is projected as a real image 10 in a required space by the image display means 1.

Then, the image projecting means 1 is shown in FIGS.
As shown in FIG. 1, the retroreflective sheet 1 which is a pair of retroreflective plates in which the retroreflective surfaces 11 and 12 are orthogonal to each other and one end is abutted against
3 and 14, and a semi-transparent mirror 16 in which the semi-reflective surfaces intersect at an angle of 45 degrees in the orthogonal portion of the retroreflective surfaces 11 and 12.
Here, the semi-transparent mirror 16 is made of transparent plate glass having a smooth surface.

Retroreflective surface 1 of retroreflective sheets 13 and 14
1, 12 are the retroreflective surfaces 11, 12 as shown in FIG.
Angle of incidence (right angle in Fig. 4, θ ₁ , θ ₂ )
Of the light ray is reflected toward the optical path on which the light ray is incident.
Therefore, the light from the point P gathers at the point P again. As such a retroreflective sheet, Scotchlite (registered trademark) 7610 or 7615 manufactured by 3M can be used.

Then, as shown in FIG. 5, when the object M (or N) is arranged by combining the retroreflective sheets 13 and 14 and the semi-transparent mirror 15, the light emitted from one point P of the object M (N) becomes half. When passing through the transparent mirror 15 and reflected by the retroreflective surface 11 and returning along the same optical path as that incident on the retroreflective surface 11, half of the light is reflected by the semitransparent mirror 15 and gathers at the conjugate point of the semitransparent mirror. , Real image P ′. Also,
The light emitted from the object and reflected by the semi-transparent mirror 15 also enters the other retroreflective surface 12, travels the same optical path as the incident light path, half of this light passes through the semi-transparent mirror 15, and Convergence points with respect to the semi-transparent mirror, (the same points as the points of the real image described above), and a real image P ′ is obtained.

The same is true for all points of the image of the object M (N), the object M (N) being projected as a real image M '(N') at a conjugate position with respect to the semi-transparent mirror 15. Here, the real image M (N) is visually observed as the same image from any direction and appears to be floating in space. In addition, in the present embodiment, a plurality of sensors 17 for detecting an object such as a hand, a fingertip, or an indicator stick existing in the space are provided facing the space where the real image 10 is projected.

The sensor 17 comprises a semiconductor laser element 18 as a laser light generating means and a photodiode 19 as a light detecting means. Photodiode 19
Detects the reflected light from the object of the laser light generated by the respective semiconductor laser elements 18 and sends the detection signal to the object position detecting means 20 to detect the object position detecting means 20.
Then, the spatial position of the object is detected depending on which photodiode the detection signal is combined with. For example, as shown in FIG. 3, when four input items are arranged in a rectangular shape on the operation panel surface, four sensors are provided, and each sensor has an optical path indicated by a chain line in FIG. 2 sensors at the place where each input item is displayed
The optical paths of the two sensors are provided so as to intersect with each other, and the respective positions are detected.

Further, in the present embodiment, in the space in which the real image 10 is projected, the selection confirmation is transmitted to the fingertip or the like inserted for performing the selection instruction operation for the input items on the operation panel displayed in the space. The confirmation signal generating means 21 sends the signal to perform. In the present embodiment, the confirmation signal generating means 21 directly acts on the tactile sensation of the hand, fingertip, or the like performing the selection instruction operation, so that it generates an air jet having a strong directivity, and a plurality of nozzles 22 serving as a signal output device. And a compressor as a source of the air jet from the nozzle 22, or a compressed air tank and a solenoid valve for controlling the air.

Here, each nozzle 22 is adapted to send an air jet corresponding to the input item 23 on the operation panel displayed by the real image 10. In order to input data to the device using the data input device according to this embodiment, the input items 23 displayed on the real image 10 floating in the space are displayed.
You can insert your finger into the display area of. Then, the sensor 17 detects the finger, the object position detection means 20 detects the position, and the CPU 41 refers to the operation unit coordinate memory 6 and the operation state memory 7 to output the data necessary for the device. At the same time, the confirmation signal generating means 21 blows an air jet from the nozzle 22 onto the finger at the location of the input item. This allows the operator to recognize that the desired data has been input to the device.

Therefore, according to the present embodiment, since the input items to be operated when inputting data are displayed floating in the air, the design is sophisticated, which attracts the interest of the viewer and improves the merchandise. In addition to changing the design of input items, increasing / decreasing / changing the number of devices to be operated, and changing the input items of devices to be operated, you can change the items displayed by simply changing the memory contents. It can be changed and dealt with easily.

In this example, the screen is provided perpendicularly to the semi-transparent mirror, but as shown in FIG. 6, the screen may be provided at any angle φ with respect to the semi-transparent mirror. The real image will appear in the conjugate space. Therefore, the real image also has the same inclination angle φ with respect to the semi-transparent mirror. Further, in this embodiment, the two retroreflective plates are provided so as to be perpendicular to each other and at 45 degrees with respect to the semi-transparent mirror. However, as shown in FIG. 7, both retroreflective plates are optional. Even if it is provided at the angles ψ ₁ and ψ ₂ , the real image is formed at the conjugate position with respect to the semi-transparent mirror of the image.

Further, in this example, two retroreflective plates are provided as one set, which is shown in FIGS. 8 and 9.
As shown in FIG. 5, if there is a retroreflective plate on either one, a real image is formed, and it can be arbitrarily selected depending on the arrangement position of the device of the input device, the design, or the arrangement of other devices. At this time, as described above, the real image 1
The projection position of 0 is determined only by the positional relationship between the semi-transparent mirror 16 and the image 5, and does not depend on the mounting angle of the retroreflector.

Next, the second data input device according to the present invention will be described.
An example will be described. 10 and 11 show a switch box of an audio system, which is a data input device according to the present embodiment. In this embodiment, the data input device is arranged in one housing as a switch box. In this embodiment, the real image 10 is displayed on one inclined surface of the housing, and the real image is displayed corresponding to four input items, and the sensor 17 and the nozzle 22 are provided at respective positions.
And are to be provided. As a display device, a thin liquid crystal display device or other display device is arranged at a position conjugate with the anti-reflective mirror 16 at a desired real image display position, and the two retroreflective plates 13 and 14 are replaced by the semi-transparent mirrors. The other control circuits are the same as those in the first embodiment except that they are sandwiched and provided with a predetermined angle.
Detailed description thereof will be omitted.

Also in this embodiment, since the input items to be operated when inputting the data are displayed floating in the air, the design becomes sophisticated, which attracts the attention of the viewer and improves the commercial property. In addition to changing the design of input items, increasing / decreasing / changing the number of devices to be operated, and changing the input items of devices to be operated, you can change the items to be displayed simply by changing the memory contents. Can be easily dealt with.

Next, the third embodiment of the data input device according to the present invention
An example will be described. This embodiment is installed in an automobile. As shown in FIG. 12, the data input device according to the present embodiment is provided between a driver's seat 30 and a passenger seat 31 in an automobile, and the configuration of the device is the same as that of the first embodiment.

In the present embodiment, the space in which the real image 10 is projected is provided at a place where the driver can reach by extending his left hand in a normal driving posture. Therefore, the driver can insert electronic devices such as a radio, a CD player, a television, and a navigation system into a desired input item without changing the driving posture and without using a dedicated tool. It can be operated easily.

At this time, if the fingertip is inserted into the proper spatial position of the input matter 23 displayed by the real image 10, the sensor 17
And the object position detecting means 20 detects the position of the fingertip,
U41 confirms the operation, operates the confirmation signal generating means 21, and sends an air jet toward the fingertip from the nozzle 22 corresponding to the selected input item 23. The fingertip can confirm that the operation has been confirmed by receiving the air jet.

Therefore, in this embodiment, the data necessary for operating the device can be surely input in a situation where it is difficult to grip the operating device such as during driving. Also, when changing the equipment to be operated, it is possible to deal with the change of data such as the operation panel pattern without changing the input device.
Further, the display design can be easily changed.
The data input device according to the present invention is a laser knife,
It can be used as an input device for equipment such as ultrasonic diagnostic equipment and other medical equipment, hospital doors, and elevators.

When the device is used in such a device, the input part of the device is not directly touched. Therefore, when it is necessary to operate the device during medical treatment, surgery, etc., the operator's fingertip or the device should be dirty. It is effective in preventing pollution, etc. Furthermore, the data input device according to the present invention can be used as an input device for a cooking device such as a range, an industrial device, a nuclear power device, and other devices. In such a case, the device can be operated with a dirty finger. However, since the device is not contaminated, it is possible to save time and labor for operating the device and to improve workability.

In each of the above examples, a display screen and an image projection device using a retroreflective plate have been described as an example. However, other optical means can be used if a real image can be created.
For example, a hologram or the like may be used. Further, in each of the above examples, the sensor is not limited to the combination of the laser light generating means and the light detecting means used in the above respective embodiments, and the array of the laser light generating means and the array of the light detecting means are opposed to each other. A sensor that detects an object in combination may be used, or a sensor that uses ultrasonic waves may be used.

[0045]

As described above, according to the present invention,
In a data input method and apparatus, an image representing an input item is displayed on a screen of an image display means, the displayed screen is projected as a real image in a space, and data input designation in the space where the screen is projected is designated. Therefore, the position of the inserted object such as a finger is detected by the object position detection means, and input based on the position information of the object detected by the object position detection means and the position information of the figure in the projected display screen. Since data is generated, the input items to be operated are displayed floating in the air, which makes it sophisticated in design,
In addition to attracting the attention of the viewer and improving the marketability, it is not necessary to grip the input device when inputting the data necessary for operating the device to the equipment, and the data can be input without contacting the input device. As a result, the input device and the fingers used for input can be prevented from becoming dirty.

When the display design of input items is changed, the number of devices to be operated is increased, decreased, or changed, and the input items of devices to be operated are changed, only the contents of the memory are changed to display the items to be displayed. It is said that the input image of the input device can be changed as needed, and the degree of freedom in the design of the input image surface is increased, so that the design of the input device can be integrated and beautiful. Produce an effect.

Further, according to the fifth means of the present invention, since the signal for detecting the position of the object is given to the object for data input, it is possible to obtain the information that the data has been input to the input device. It can be applied to an input device regardless of contact or non-contact, and the reliability of data input operation can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing the principle of the present invention.

FIG. 2 is a block diagram showing an embodiment of a data input device according to the present invention.

FIG. 3 is a perspective view showing a main part of the data input device shown in FIG.

FIG. 4 is a diagram illustrating the principle of the image projection means of the data input device shown in FIG.

5 is a diagram illustrating the principle of the image projection means of the data input device shown in FIG.

6 is a diagram illustrating the principle of the image projection means of the data input device shown in FIG.

FIG. 7 is a diagram illustrating the principle of the image projection means of the data input device shown in FIG.

FIG. 8 is a main part perspective view showing another example of the image projection means of the data input device according to the present invention.

FIG. 9 is a main part perspective view showing another example of the image projection means of the data input device according to the present invention.

FIG. 10 is a perspective view showing another embodiment of the data input device according to the present invention.

11 is a sectional view taken along line XI-XI in FIG. 10 showing the structure of the data input device shown in FIG.

FIG. 12 is a perspective view showing an example in which the data input device according to the present invention is applied to a data input device of an automobile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 image projection means 2 display screen 3 image display means 4 input data generation means 5 image 6 figure position information 10 real image 13,14 retroreflector 16 semi-transparent mirror 17 sensor 18 laser light generation means 19 light detection means 20 object position detection means 21 Confirmation signal generating means 22 Signal output device 40 Equipment

Claims (8)

[Claims] 1. A data input method for inputting data to a device, wherein an image representing predetermined input items is displayed on a screen of an image display means, and the displayed screen is projected as a real image in a space, and the screen is displayed. In the projected space, the position of the inserted object is detected by the object position detection means, and based on the position information of the object detected by the object position detection means and the position information of the figure on the projected display screen. How to enter data to generate the input data. 2. A data input method for inputting data to a device, wherein an image representing a predetermined input item is displayed on a screen of an image display means, and the displayed screen is projected as a real image in a required space, In the space where the screen is projected, the position of the inserted object is detected by the object position detection means, and the position information of the object detected by the object position detection means and the position information of the figure in the projected display screen are recorded. A data input method in which input data is generated based on the detected data, and a signal indicating that the position of the object is detected is output based on the detection of the object. 3. A data input device for inputting data to a device, and image display means (3) for displaying an image (5) showing predetermined input items to the device (40) on a display screen (2), An image projection means (1) for projecting the image (5) displayed on the display screen (2) into a space as a real image (10), and an object inserted into the space where the real image (10) is projected. Object position detecting means (20) for detecting the position of the object by detecting with a sensor (17), position information of the object detected by the object position detecting means (20), and position of input matter on the projected display screen Information (8)
And an input data generating means (4) for generating input data of an item to be input to the device based on the above. 4. A data input device for inputting data to a device, comprising image display means (3) for displaying an image (5) showing predetermined input items to the device (40) on a display screen (2). An image projection means (1) for projecting the image (5) displayed on the display screen (2) into a space as a real image (10), and an object inserted into the space where the real image (10) is projected. Object position detecting means (20) for detecting the position of the object by detecting with a sensor (17), position information of the object detected by the object position detecting means (20), and position of input matter on the projected display screen Information (8)
Input data generating means (4) for generating input data of an item to be input to the device based on the above, and a signal output device for outputting a signal indicating that the position of the object is detected based on the detection of the position of the object. A data input device comprising a confirmation signal generating means (21) for outputting from (22). 5. A data input device for inputting data to a device, wherein an object position detecting means (20) for detecting an object specified by a data specifying section by a sensor (17) and detecting the position of the object.
And input data generating means for generating input data to be input to the device based on the position information of the object detected by the object detecting means (20) and the position information (8) of the figure in the projected display screen. A data input device comprising (4) and a confirmation signal generating means (21) for outputting a signal indicating that the position of the object has been detected based on the detection of the position of the object from a signal output device (22). 6. The sensor (17) for detecting the object comprises:
The object position detecting means (20) includes a laser light generating means (18) and a light detecting means (19) for detecting the laser light reflected by the object, and the object position detecting means (20) detects the position of the object based on the output of the light detecting means (19). The data input device according to any one of claims 3 to 5, which detects an error. 7. The signal output device (22) is a plurality of air blowing means for sending air toward an object inserted in a space where a real image is projected, and the confirmation signal generating means (21) is the air blowing means. 7. The data input device according to claim 4, further comprising a drive unit that selectively drives the means. 8. The image projecting means (1) comprises a semi-transparent mirror (16) provided obliquely to the display screen (2), and one or two retroreflective mirrors provided obliquely to the semi-transparent mirror. Board (1
3, 14) and the data input device according to any one of claims 3, 4, 5, and 6.