JPH11287765A - Display device for target of continuous length - Google Patents

Abstract

PROBLEM TO BE SOLVED: To expand and display a target of continuous length with a large ratio between long and short sides on one screen. SOLUTION: An optical system 14 for split display is arranged between a target 12 of continuous length and a TV camera 13. The optical system 14 for split display is composed of a first reflection mirror 14a for reflecting beams La from a first section 12 of the target 12 of continuos length and a second reflection mirror 14b for reflecting beams Lb from a second section 12b of the target 12 of continuous length. Both the reflection mirrors 14a and 14b are arranged side by side in the direction of the short side of the target 12 of continuous length. An imaginary image from both the reflection mirrors 14a and 14b is captured as an image by the TV camera 13 and is displayed on a display screen 16a of a monitor 16. Sections 12a and 12b are displayed while being aligned in the direction of the short side of the target 12 of continuous length. Therefore, even if it is enlarged by two times, the entire region of the target 12 of continuous length can be displayed on one screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long object display device for displaying a long object on a display screen, and in particular, to expanding the entire area of the long object on one screen. The present invention relates to a long object display device capable of performing the following.

[0002]

2. Description of the Related Art Generally, when a long object having a large ratio of long and short sides is displayed on a display screen of a monitor, the display screen 1 of the monitor has a constant aspect ratio as shown in FIG. Therefore, when trying to display the entire area of the long object 2 on one screen, the image of the long object 2 becomes small, and it is not possible to inspect a flaw or the like on the surface of the long object 2. There is a problem.

Therefore, conventionally, for example, FIGS. 5 (a) and 5 (b)
As shown in the figure, the long object 2 is divided into two areas 2 in the long side direction.
a, 2b, and each area 2a, 2b is enlarged and displayed twice by switching the display screen 1.

[0004]

In the conventional method for displaying a long object, the long object 2 is displayed twice as large, so that a flaw or the like on the surface of the long object 2 can be easily removed. Although it has the advantage that it can be inspected, the number of display screens 1 is substantially doubled, so that the inspection operation must be performed twice, which makes the inspection operation difficult. .

[0005] In addition, depending on the length of the long object 2,
In some cases, double magnification display is not enough.
Although it is necessary to display the image twice or more times, as the magnification is increased, the number of times of switching the screen is increased, and the inspection time is correspondingly increased.

The present invention has been made in view of such a situation. Even when a long object is enlarged and displayed, the entire area of the long object can be displayed on one screen, and the surface inspection can be performed. It is an object of the present invention to provide a long object display device capable of greatly improving workability such as the above.

Another object of the present invention is to provide a long object display device which can simplify the configuration of the divided display optical system and can reduce the size of the optical system.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for capturing a long object having a large ratio of long and short sides as an image with an image sensor, and displaying the captured image on a display screen of a monitor. In the long object display device to display in, a split display optical system is disposed between the long object and the image sensor, and the long object is arranged in the long side direction in the split display optical system. It is characterized in that it has a function of dividing into a plurality of areas and displaying the respective areas in the short side direction of the long object. Then, by the function of the split display optical system, each area of the long object is displayed side by side in the short side direction, and even when enlarged and displayed on the display screen of the monitor, the image of each area is displayed. It can be displayed on one screen. For this reason, screen switching is not required, and workability such as surface inspection can be greatly improved.

According to the present invention, the divided display optical system includes a plurality of reflecting mirrors arranged in the short side direction of the long object in the same number as the number of sections to be divided. It is characterized in that the inclination angles with respect to the scale object are different from each other. Thus, each section divided into a plurality of long objects in the long side direction is reflected as a virtual image by each of the reflection mirrors arranged in parallel in the short side direction of the long object, and this is imaged by the image sensor. As a result, it is possible to display an image of each area on one screen. Therefore, the configuration of the divided display optical system can be simplified, and the number of sections can be easily increased by increasing the number of reflection mirrors.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIGS. 1 and 2 show a long object display device according to an embodiment of the present invention. The display device 11 is a TV for imaging a long object 12 having a large ratio of long and short sides. A camera 13 is provided, and a split display optical system 14 is disposed between the TV camera 13 and the long object 12. The TV camera 13 includes the split display optical system 1.
4, the long object 12 can be captured as an image. The image captured by the TV camera 13 is sent to the monitor 16 via the control device 15 as an image signal, and is displayed on the display screen 16a.

As shown in FIGS. 1 and 2, the split display optical system 14 reflects a light beam La from a first area 12a formed by bisecting a long object 12 in a long side direction. A first reflecting mirror 14a, and a second reflecting mirror 14b that reflects a light beam Lb from the second section 12b of the long object 12.
And the two reflection mirrors 14a, 14b
Are arranged side by side in the short side direction of the long object 12 and have different inclination angles with respect to the long object 12. Then, the virtual images from these two reflection mirrors 14a and 14b are
By taking an image with the TV camera 13, the monitor 16
As shown in FIG. 3, the sections 12a and 12b of the long object 12 are arranged and displayed in the short side direction of the long object 12 on the display screen 16b.

At this time, since the length of each of the sections 12a and 12b is １ ／ of the total length of the long object 12,
The image is enlarged by a factor of two by the zoom function of the TV camera 13, so that the image of the long object 12 that is enlarged by a factor of two is displayed on the display screen 16a on one screen. .

Next, the operation of the present embodiment will be described. Light rays La and Lb from each of the sections 12a and 12b formed by bisecting the long object 12 in the long side direction are reflected by the reflection mirrors 14a and 14b of the divided display optical system 14, and are reflected by the reflection mirrors 14a and 14b. The virtual images from the mirrors 14a and 14b are captured by the TV camera 13. The display screen 16a of the monitor 16 displays the sections 12a and 12b of the long object 12.
Are displayed at the same time in a state where they are arranged in the short side direction of the long object 12 and are enlarged twice.

Thus, the long object 12 is moved in the long side direction by two.
Even when the areas 12a and 12b formed equally are enlarged and displayed twice, they can be displayed on one screen without switching the screen of the display screen 16a. Therefore, flaws and the like on the surface of the long object 12 can be easily inspected.

In the above-described embodiment, the divided display optical system 14 is composed of two reflecting mirrors 14a and 14b, and each of the sections 12a and 12a formed by dividing the long object 12 into two equal parts. The case in which the object 12b is enlarged twice and displayed on one screen has been described. However, by increasing the number of reflecting mirrors, the long object 12 is divided into three or more equal parts and enlarged to three or more times. It can also be displayed on one screen.

In the above embodiment, the display screen 16a of the monitor 16 is divided into upper and lower parts, and
a, 12b are displayed. For example, when the number of divisions is increased, the display screen 16a is displayed.
May be displayed on the left and right of each area. This means that the direction of the TV camera 13 is 90 degrees around the axis.
It can be easily realized by rotating it by degrees.

[0017]

As described above, according to the present invention, a divided display optical system is arranged between a long object and an image sensor.
Since the split display optical system divides the long object into a plurality of sections in the long side direction, and has a function of displaying each area side by side in the short side direction of the long object, Even if the image is enlarged and displayed on the display screen of the monitor, the image of each area can be displayed on one screen. For this reason,
Screen switching is not required, and workability such as surface inspection can be greatly improved.

According to the present invention, the divided display optical system is constituted by a plurality of reflection mirrors arranged in the short side direction of the long object in the same number as the number of sections to be divided. Since the inclination angles with respect to the object are different from each other, each section divided into a plurality of sections in the long side direction of the long object is arranged in parallel in the short side direction of the long object. Is reflected as a virtual image, and the image is captured as an image by the image sensor, whereby an image of each area can be displayed on one screen. Therefore, the configuration of the divided display optical system can be simplified, and the number of sections can be easily increased by increasing the number of reflection mirrors.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a long object display device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of the long object and the divided display optical system in FIG. 1 as viewed from the right side.

FIG. 3 is an explanatory diagram showing a state of a long object that is enlarged and displayed on a display screen of a monitor.

FIGS. 5A and 5B are explanatory diagrams showing a conventional display method for displaying each area when a long object is bisected in the long side direction on two screens.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Display apparatus 12 Long object 12a 1st area 12b 2nd area 13 TV camera 14 Split display optical system 14a 1st reflection mirror 14b 2nd reflection mirror 15 Controller 16 Monitor 16a Display screen

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[Procedure amendment]

[Submission date] July 10, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a long object display device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of the long object and the divided display optical system in FIG. 1 as viewed from the right side.

FIG. 3 is an explanatory diagram showing a state of a long object that is enlarged and displayed on a display screen of a monitor.

FIG. 4 shows the entire area of a long object displayed on a monitor display screen.
It is an explanatory view showing the state where it was made.

FIGS. 5A and 5B are explanatory diagrams showing a conventional display method for displaying each area when a long object is bisected in the long side direction on two screens.

[Description of Signs] 11 Display device 12 Long object 12a First area 12b Second area 13 TV camera 14 Split display optical system 14a First reflection mirror 14b Second reflection mirror 15 Control device 16 Monitor 16a Display screen

Claims (2)

[Claims] 1. A long object having a large ratio of long and short sides,
Captured as an image by the image sensor, the captured image, in a long object display device to display on the display screen of the monitor, between the long object and the image sensor, a split display optical system, The split display optical system is characterized in that it has a function of dividing the long object into a plurality of areas in the long side direction and displaying each area side by side in the short side direction of the long object. Long object display device. 2. The divided display optical system includes a plurality of reflection mirrors arranged in the short side direction of the long object in the same number as the number of sections to be divided. 2. The long object display device according to claim 1, wherein the inclination angles with respect to are different from each other.