JP2000276121A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a subject of a complicated shape with a sharp image in real time by providing a display means for displaying a synthetic image and a partial display means for displaying the subject nearly at the present time in a displaying range smaller than the synthetic image. SOLUTION: A microscope 1 photographs a subject 2 by means of a video camera 7 at its height to obtain image data based on a real image. A computer 9 fully focuses within the area of the partial display part of a monitor 5 to make a stereoscopic synthetic image to synthesize this stereoscopic image and a stereoscopic image formed before. Then, at the time of displaying the synthetic image of the subject 2 on the partial display part of the monitor 5, the computer 9 is not required to full-focus the whole displaying area from the beginning but required to full-focus only the area of a narrow and small partial display part again. Thus, the number of the times of full focusing is reduced and the subject of a complicated shape can be displayed with a sharp image in real time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying an image of a subject on a display means.

[0002]

2. Description of the Related Art In recent years, integration in electronic parts and the like (hereinafter simply referred to as parts) has been advanced, and a microscope is used when handling fine parts with pins as operating tools. The microscope has a photographing means for photographing a part as a subject arranged on a predetermined table, a moving means for moving the photographing means closer or farther to focus on the part, and an image photographed by the photographing means. Is displayed on the display. The operator can visually recognize the shape of the component by operating the microscope and referring to the display means.

However, some parts have different depths (hereinafter, height as an example). When a part having such a shape is photographed by the photographing means, there is a problem that a part of the part can be focused, but the whole part cannot be focused. For this reason, in a conventional microscope, a component is photographed using an all-focus (pan-focus) method. With the all-focus method, the photographing means is photographed while moving the photographing means by a very small distance with respect to the part by the moving means, and a part of the image focused in each depth direction of the part, for example, at each height, is synthesized. This is a method of displaying a composite image. When such a composite image is displayed on the display means, the image is focused on the entire part,
There was a feature that the operator could easily visually recognize the surface shape of the component.

[0004]

However, when a composite image of a component is displayed by such a full-focus method in a conventional microscope, a process of generating the composite image takes time, and the image of the component at the current time is not displayed. Do not show. That is, the composite image displayed on the display means is different from the actual image in which the operator is working on the component. Therefore, the operator cannot work while referring to such a composite image at the present time, and has to search for parts by hand. Such components have been miniaturized in recent years, and it is difficult for workers to work by groping. Therefore, conventionally, an operator cannot operate a component while referring to a clear image of such a component in real time.

Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a display device capable of displaying a subject having a complicated shape in a clear image in real time.

[0006]

According to the first aspect of the present invention, there is provided a photographing means for photographing a subject having a partially different depth, and a photographing means for focusing the photographing means. A moving unit for moving the unit in the depth direction with respect to the subject, and a focusing unit out of a real image of the subject photographed by shifting the photographing unit by a small distance in the depth direction by the moving unit. Image obtaining means having a synthesizing means for generating a synthesized image by synthesizing portions which are present, display means for displaying the synthesized image, and display of the synthesized image in a display range smaller than the synthesized image of the display means And partial display means for displaying the subject at a substantially current time in a display range smaller than the composite image. By that the display device is achieved.

According to the first aspect of the present invention, a display device includes an image acquisition unit, a display unit, and a partial display unit. The image acquisition unit has a photographing unit, a moving unit, and a combining unit. The photographing means photographs a subject having a partially different depth. At this time, the photographing means is moved by the moving means in the depth direction with respect to the subject in order to focus on the subject. The synthesizing unit synthesizes the focused portions of the actual image of the subject photographed by shifting the photographing unit by a small distance in the depth direction by the moving unit. In this way, the image acquisition unit generates the composite image and displays the composite image on the display unit. On the display means, a partial display means is displayed so as to overlap the composite image in a display range smaller than the composite image. The partial display means displays the subject at the present time in the display range smaller than the composite image by the processing of the image acquisition means. Since the partial display means has a smaller display range than the display means, it does not require time for processing by the image acquisition means and can quickly display a composite image of the subject.

The invention according to claim 2 is characterized in that the actual image of the subject is displayed on the partial display means.

According to the second aspect of the present invention, a clear synthesized image can be displayed around the subject, but it is not necessary to generate a synthesized image by the image acquisition means in order to display the subject. A real-time image can be displayed.

The invention according to a third aspect is characterized in that the partial display means displays a partial composite image generated by the image acquisition means from the real image of the subject.

According to the third aspect of the present invention, since the combined image to be combined by the image acquisition means may be a small area, the combined image can be displayed at a high speed.

According to a fourth aspect of the present invention, the object is arranged, and a table is provided which operates when the position of the display range of the partial display means on the display means is changed.

According to the configuration of the fourth aspect, when the position of the display range of the partial display means in the display means is changed, the table on which the subject is arranged operates in accordance with the movement.

According to a fifth aspect of the present invention, there is provided a microscope for viewing a minute portion of the electronic component as the subject.

[0015]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention,
Although various technically preferable limits are given, the scope of the present invention is not limited to these modes unless otherwise specified in the following description.

In the following description, "all focus" means that a focused image of a subject having a shape having a partially different depth is continuously photographed by a small distance in the depth direction using a microscope or the like. Then, only the in-focus portions are extracted, and they are combined to generate a three-dimensional composite image of the entire subject (hereinafter, also referred to as a “three-dimensional composite image”) and observe the three-dimensional composite image. Refers to the method. Therefore, the stereoscopic composite image of the subject generated by the full focus becomes a clear image. “All focus” is also called pan focus (PAN Focus). In the following description, the above-described “image of a focused portion of the subject” is referred to as a “focus area”. The “focus value” is, for example, a spatial frequency obtained by quantifying the degree of focus in the focus area, and it is assumed that the larger the numerical value is, the more focused the image is.

FIG. 1 is a plan view showing a configuration example of a microscope according to a first embodiment of the present invention. FIG. 2 is a plan view showing a state when the photographing device 8 of FIG. 1 is viewed from the front,
FIG. 3 is a side view showing a state when the photographing device 8 of FIG. 2 is viewed from the side. The microscope 1 (display device) is, for example, an optical microscope or an electron microscope. As shown in FIG. 1, the microscope 1 includes a monitor 5 (display unit), a computer 9 (image acquisition unit), and a photographing device 8 (image acquisition unit).
The monitor 5 is connected to the computer 9 by a monitor cable 23. The monitor 5 is for displaying an image photographed by the photographing device 8, and is, for example, a CRT (Cathode Ray Tube) or a liquid crystal display. The monitor 5 may be in a form integrated with the photographing device 8 as shown in FIG. 5, for example.

The computer 9 includes, for example, the computer 9 via the monitor cable 23 and the video camera 7 of the photographing device 8 via the camera cable 21 as described above.
The motor control cable 22 is connected to the video camera moving unit 7a (moving means, image acquiring means) of the photographing device 8. The computer 9 preferably includes a keyboard 9a as character input means and a mouse 9b as a pointing device. Computer 9
It controls the connected monitor 5 and photographing device 8.
The camera cable 21 is a signal line for transmitting an image captured by the video camera 7 to the computer 9. The motor control cable 22 is, for example, RS-
232C cable, which is a signal line for transmitting a control command from the computer 9 regarding the operation of the video camera moving unit 7a and the stage moving unit 3a.

The photographing device 8 has a camera base 4, a video camera 7 (photographing means), a stage 3 (table), and a video camera moving section 7a (moving means). Camera stand 4
For example, a fixed part in the photographing device 8. The video camera 7 is for photographing the subject 2 placed on the stage 3. The subject 2 is, for example, an object having a partially different depth in the Z direction.

The video camera 7 is provided, for example, above the camera table 4 of the subject 2 placed on the stage 3 in the Z direction. The video camera 7 is moved in the Z direction with respect to the camera base 4 by a video camera moving unit 7a having a predetermined motor, for example. Thereby, the video camera 7
The subject 2 can be focused. The video camera 7 and the video moving unit 7a are respectively controlled by predetermined software installed in the computer 9, for example.

The stage 3 is, for example, a flat member on which the subject 2 is arranged. The stage 3 is operated in a planar direction by a first moving unit and a second moving unit (not shown) which are controlled by the computer 9 via the motor control cable 22 shown in FIG. The first moving means and the second moving means are respectively built in the camera base 4. The first moving means of the stage 3 moves the stage 3 in the X direction of FIG. Stage 3
The second moving means moves the stage 3 in the Y direction which is perpendicular to the X direction with respect to the camera base 4, for example. That is, the stage 3 moves in a plane direction including the X direction and the Y direction. Therefore, the subject 2 placed on the stage 3 is moved in the plane direction according to the operation of the stage 3.

The stage 3 has a display area 5a of the monitor 5.
When the display position of the partial display unit 29 in is moved, the display position may be moved in the plane direction following the movement.

The video camera moving section 7a has, for example, a stepping motor. The video camera moving section 7a is for moving the video camera 7 in the Z direction by a predetermined distance via the motor control cable 22, for example, under the control of the computer 9.

FIG. 4 is a block diagram showing an example of an electrical internal configuration of the computer 9 of FIG. Computer 9
Is, for example, an A / D converter 20, a CPU (Central)
Processing Unit 17, input memory 10, focus value calculator 34, focus image memory 11, old focus image memory 12, comparator 13, synthesizer 14, all focus image memory 15, selector 18, video output unit 16, and motor Control 19 is provided.

The A / D converter 20 includes a camera cable 21
Connected to the photographing device 8, the input memory 10 and the focus image memory 11. A / D converter 2
0 converts image data, which is, for example, analog data, taken by the photographing device 8 into digital data.

As shown in FIG. 4, the CPU 17 includes, for example, the input memory 10, the focus image memory 11, the old focus image memory 12, the comparator 13, and the all-focus image memory 1.
5, connected to the motor control 19 and the video output unit 16. The CPU 17 is, for example, a central processing unit that controls these.

The input memory 10 is storage means for storing image data from the A / D converter 20. The focus value calculator 34 calculates a focus value for each pixel of the image data from the A / D converter 20. That is, the focus value calculation unit 34 calculates the focus value for each pixel in the image data currently stored in the input memory 10. Focus image memory 1
Reference numeral 1 denotes storage means for storing a focus value calculated for each pixel by the focus value calculation unit 34 with respect to image data in the input memory 10. The old focus image memory 12 is a storage unit for storing the maximum focus value of the same pixel for the image data of the input memory 10.

The comparator 13 includes a focus image memory 11
Is compared with the maximum focus value stored in the old focus image memory 12. The comparator 13 determines that the focus value stored in the focus image memory 11 is
When it is determined that the value is smaller than the maximum focus value stored in the old focus image memory 12, the maximum focus value stored in the old focus image memory 12 is left as it is. On the other hand, the comparator 13
Determines that the focus value stored in the focus image memory 11 is larger than the maximum focus value stored in the old focus image memory 12, The focus value is updated to the focus value stored in the image memory 11. Then, the comparator 13 controls the combining unit 14 based on the comparison result.

Under the control of the comparator 13, the synthesizing section 14 converts the image data having a large focus value for each pixel from the image data of the input memory 10 into the all-focus image memory 1
5 for storage. Therefore, the image data having the maximum focus value is stored in the all-focus image memory 15 for each pixel.

The selector 18 selects image data based on the actual image stored in the input memory 10 or image data generated by the all-focus method stored in the all-focus image memory 15 and sends the selected data to the video output unit 16. It is for output. The video output unit 16 is a storage unit for temporarily storing the image data from the selection unit 18. The motor control 19 is for controlling the operation of the video camera moving unit 7a and the stage moving unit 3a in FIG.

The operation of the microscope 1 will be described with reference to FIGS.
FIG. 5 is a front view showing a state of operating the microscope 1 from the front, and FIG. 6 is a side view showing the state of the microscope 1 of FIG. The operator 37 is an operator who uses a sharp work tool 6 while enlarging a subject 2 having a fine shape in a factory line or a research facility by using the microscope 1 as shown in FIG.

In the microscope 1, for example, a monitor 5 is provided integrally on an upper part of the photographing device 8. As described above, since the monitor 5 is provided integrally on the upper part of the photographing device 8, the operator 37 can easily see the display area 5a (display means) in which the subject 2 is displayed and work while working. Also, it is easy to visually recognize the shape of the subject 2.

FIG. 7 is a flowchart showing an example of a procedure in which the microscope 1 of FIG. 1 displays a stereoscopic composite image of the subject 2 on the display area 5a of the monitor 5, and FIG. 8 is a flowchart of the entire focus step ST40 of FIG. It is a flowchart which shows an example of a detailed procedure. In the drawings used in this description (for example, FIGS. 9 to 12 and FIGS. 14 to 19), it is assumed that a portion outlined by a dotted line is not a focus area.

Acquisition of All Focus Images The operator 37 in FIG. 6 places, for example, a desired subject 2 on the stage 3 of the microscope. The operator 37 operates the mouse 9b of the computer 9 in FIG.
In FIG. 5A, an all-focus image of the subject 2 is displayed as shown in FIG. 5 (step ST40). This all focus image is
It is generated according to the flowchart of FIG.

The operator 37 in FIG. 6 adjusts the position of the stage 3 so that the subject 2 is displayed on the display area 5a of the monitor 5 in FIG. The video camera moving section 7a moves the video camera 7 in the Z direction under the control of the computer 9, and moves the video camera 7 to a first position in shooting by the video camera 7, for example, a position farthest from the subject 2 (step ST41). Complete (step ST42). The computer 9 photographs the subject 2 with the video camera 7 (step ST43).

The subject 2 has a shape partially having a depth in the Z direction in FIG. 6 as described above. For this reason,
The image of the subject 2 is captured on the monitor 5 as shown in FIG.
For example, only the area 27 of the display area 5a is a focused real image. The image data of the real image is, for example, analog data, is converted into digital data via the A / D converter 20 in FIG. 4, and is stored in the input memory 10 (step ST43). The image data is composed of, for example, a plurality of pixels, and the computer 9 obtains pixels for each predetermined unit length of the image data.

The computer 9 determines whether or not it is the last pixel of the image data (step ST44). When the computer 9 determines that it is not the last pixel of the image data, it performs the following processing.

The computer 9 calculates a focus value for each pixel from the image data stored in the input memory 10 by the focus value calculation unit 34 in FIG. 4 (step S).
T45). The computer 9 uses the comparator 13 to compare the focus value of each pixel of the image data of the old focus image memory 12 with the focus value of each pixel of the image data of the focus image memory 11 (step ST46). As a result of the comparison by the comparator 13, if the focus value at each pixel of the image data of the focus image memory 11 is smaller than the focus value at each pixel of the image data of the old focus image memory 12, the computer 9 proceeds to step ST44. Return to processing.

On the other hand, as a result of the comparison by the comparator 13, the focus value of each pixel of the image data of the focus image memory 11 in FIG.
If the image data is larger than the focus value of each pixel of the image data, the computer 9 transfers the image data of the input memory 10 to the entire focus memory 15 via the synthesizing unit 14 by control based on the focus value of the focus image memory 11. It is stored (step ST47). Therefore,
The all-focus image memory 15 stores synthesized image data obtained by synthesizing the pixels having the highest focus value for each pixel. When the comparison and accumulation are performed for all the pixels of the image data in the same manner, the computer 9 stores the composite image data of the all-focus image memory 15 in the video output unit 16 (step ST48) and steps ST44.
Return to

Here, the "focus value for each pixel of the image data" is the position information in the depth direction Z, that is, the height from the subject 2 to the video camera 7 when the image is in the focus area. is there. In the following description, height is illustrated as an example of this position information. Therefore, when the microscope 1 acquires a composite image in which the same area is fully focused again, or as described later, the partial display unit 29
In order to display the subject 2 in a short time, the video camera 7 is moved by a small distance from the beginning without performing full focusing, and only by focusing all around this height can quickly and clearly obtain a composite image of the subject 2. .

On the other hand, when the computer 9 determines in step ST44 that it is the last pixel of the image data, it determines whether the video camera 7 is closest to the subject 2 and ends the movement (step ST49). Computer 9
Terminates all focus when it is determined that the movement is completed, and returns to step ST42 when it is determined that it is not completed.
The computer 9 sends the video camera moving unit 7a to the motor control 19 to capture the next image.
And the video camera 7 moves by a very small distance. The next captured image is, for example, an image as shown in FIG.
In this image, the area 28 is a focus area.

As described above, the computer 9 calculates the focus area for each image data at each height in the depth direction Z, and combines the focus areas of the image data of the real image as shown in FIG. Display area 5a for clear stereoscopic composite image
Can be displayed.

The partial display unit all focus image acquisition Next, the operator 37, for example by operating the mouse 9b of FIG. 1, in FIG partial display unit 29, such as 12 (partial display unit) display area 5a within the specify. The CPU 17 of the computer 9 shown in FIG.
9 are acquired (step ST50). The computer 9 acquires the focus value in the area of the partial display section 29 from the focus image memory 11, calculates an average or the like, and calculates the height in the depth direction Z (step ST51). The computer 9 controls the video camera moving section 7a via the motor control cable 22 as shown in FIG. 1, and moves the video camera 7 to this height in advance (step ST52).

The microscope 1 uses the video camera 7 to photograph the subject 2 at that height and obtains image data based on an actual image. The computer 9 focuses on the entire area within the area of the partial display section 29 as described above, and
"Intra-region image"). The computer 9 combines the three-dimensional composite image on the partial display unit 29 of FIG. 5 with the previously generated three-dimensional composite image (step ST5).
4). Then, as shown in FIG.
(Step ST55).

The microscope 1 determines whether or not to end the work as shown in FIG. 7 (step ST56), and if so, ends the processing. On the other hand, when not ending, the microscope 1 determines whether or not to move the display position of the partial display unit 29 for displaying the vicinity of the subject 2 in the display area 5a (step ST57). The microscope 1 displays the partial display unit 29 in the display area 5a of the monitor 5, for example, as shown in FIG.
When moving from the position as shown in FIG. 15 to the position as shown in FIG. 15, the process returns to step ST53, and when not moving the partial display portion 29 in the display area 5a for displaying the subject 2, the process returns to step ST50.

As described above, when displaying the composite image of the subject 2 on the partial display section 29 as shown in FIG. 12, the computer 9 does not need to focus the entire display area 5a from the beginning, and the small and small area is not necessary. Since it is only necessary to perform full focus again in the area of the partial display unit 29, the number of times of full focus is reduced, and the stereoscopic composite image of the subject can be displayed on the partial display unit 29 quickly.

When the display of the partial display section 29 in the display area 5a of the monitor 5 is changed from the display state shown in FIG. 14 to the reduced display state shown in FIG. As in the case of, the entire focus is performed on the area, and the stereoscopic composite image is displayed on the partial display section 5a.

As described above, the display range of the partial display section 29 is smaller than the display area 5a of the monitor 5 in FIG.
When the subject 2 is displayed on the partial display unit 29, all focus processing can be speeded up by the small difference in height of the subject 2 within the display range of the partial display unit 29.

According to the first embodiment of the present invention, the microscope 1
Can clearly display the subject 2 having a partially different height in the Z direction on the partial display section 29 of the display area 5a of the monitor 5 almost in real time. Therefore, the worker 37 can perform work using, for example, the work tool 6 while referring to a clear image of the subject 2 displayed on the microscope 1 almost in real time.

[0050] In the microscope 1a according to the second embodiment the second embodiment, portions denoted by the same reference numerals and the microscope 1 of the first embodiment in FIGS. 1 to 12 and 14 to 16 is the same configuration Therefore, only different points will be described. In the microscope 1a, in the first embodiment, the three-dimensional composite image in which the entire display is focused is displayed on the partial display unit 29.
Is displayed. FIG. 13 shows a computer 9 provided in a microscope 1a according to a second embodiment of the present invention.
It is a block diagram which shows the example of a structure of a. In FIG. 13, the configuration of the computer 9a is slightly different from that of the computer 9 in FIG.
Indicates the unused portion. In FIG. 13, the A / D converter 20 in FIG. 4 is omitted to simplify the drawing.

In the microscope 1a, the image data input via the camera cable 21 is stored in the input memory 10. The image data in the input memory 10 is supplied to the selection unit 18a.
Is combined with previously acquired image data stored in the all-focus image memory 15 and stored in the video output unit 16. The composite image stored in the video output unit 16 is displayed on the display area 5 a including the partial display unit 29 of the monitor 5 under the control of the computer 9. That is, the “obtain all focus images of the partial display unit” process in the microscope 1 as the first embodiment of the present invention is not required.

A microscope 1a according to a second embodiment of the present invention.
In this case, the image displayed on the display area 5a of the monitor 5 is the actual image of the subject 2 and does not require a process that requires a certain amount of time, such as a process of “obtaining all the focus images of the partial display unit”. Can be displayed.

According to the second embodiment of the present invention, the microscope 1
Displays a subject 2 having a partially different height in the Z direction in real time in a display area 5a of the monitor 5 in FIG.
Can be clearly displayed on the partial display section 29. Therefore, the worker 37 can perform work using, for example, the work tool 6 while referring to the clear image of the subject 2 displayed on the microscope 1 in real time.

Application Examples FIGS. 17 and 18 show the display area 5 of the monitor 5 respectively.
It is a figure showing the picture displayed on a. FIG. 19 is a diagram showing an image displayed on the display area 5a of the monitor 5 by applying either the microscope 1 as the first embodiment of the present invention or the microscope 1a as the second embodiment. FIG.
In 19, the worker 37 uses the work tool 6 to place the part 32 as the subject 2 of the microscope 1 a, for example, into the reference part 3.
1 is performed at a predetermined position.
The reference part 31 is provided with a reference line 26 indicating the predetermined position. On the other hand, the part 32 is provided with a matching line 25 for aligning with the reference line 26 of the reference part 31.

In FIG. 17, the part 32 and the tip 6a of the work tool 6 are in the focus area, and the reference line 26 of the reference part 31 and the part 6b other than the tip of the work tool 6 are not in the focus area and are not focused. It is clear. On the other hand, in FIG. 18, a portion 6 b other than the reference line 26 of the reference part 31 and the tip of the work tool 6 is a focus area, and the focus of the part 32 and the tip 6 a of the work tool 6 is not in the focus area and is unclear. It has become.

In FIG. 19, a three-dimensional composite image which is completely focused from the focus areas of FIGS. 17 and 18 or a clear real image is displayed in the display area 5a of the monitor 5.
In FIG. 19, the reference line 26 of the reference part 31 and the reference line 26 of the part 32 and the work tool 6 are clearly displayed on the partial display unit 29, and the worker 37 uses the work tool 6 to The reference line 26 can be accurately aligned with the reference line 26 of the reference component 31 and arranged. For this reason, the worker 37 can perform the work efficiently regardless of which of the microscope 1 and the microscope 1a is used.

The present invention is not limited to the above embodiment. In addition, the above-described microscope 1 is an example of various display devices that display a subject, and can be applied to other display devices. It is needless to say that each processing unit shown in FIGS. 4 and 13 constituting the computer 9 may be constituted by any of hardware such as a circuit block and software (program) having the above-described functions. The program having the above functions is, for example, a flexible disk or a CD (Compac).
The information may be stored in an information storage medium such as t Disc (trade name) for each function. Further, as this information recording medium, the program is recorded on electronic devices such as computers scattered on a network, and is downloaded from the electronic device to an electronic device such as a user's computer via the network. May be included.

[0058]

As described above, according to the present invention,
It is possible to provide a display device capable of displaying a subject having a complicated shape with a clear image in real time.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration example of a microscope as a first embodiment of the present invention.

FIG. 2 is a plan view showing a state when the photographing apparatus of FIG. 1 is viewed from the front.

FIG. 3 is a side view showing the appearance of the photographing apparatus of FIG. 2 when viewed from the side.

FIG. 4 is an exemplary block diagram showing an example of an electrical internal configuration of the computer shown in FIG. 1;

FIG. 5 is a plan view showing how the microscope is operated from the front.

FIG. 6 is a side view showing the microscope of FIG. 5 and a state of an operator working with the microscope.

7 is a flowchart showing an example of a procedure in which the microscope in FIG. 1 displays a stereoscopic composite image of a subject in a display area of a monitor.

FIG. 8 is a flowchart illustrating an example of a detailed procedure of an all-focus step ST40 in FIG. 7;

FIG. 9 is a view showing an example of an image of a subject displayed in a display area of the monitor in FIG. 5;

FIG. 10 is a view showing an example of an image of a subject displayed in a display area of the monitor of FIG. 5;

11 is a diagram showing an example of an image in which a stereoscopic composite image is generated from a real image of the subject in each of FIGS. 9 and 10, and is displayed in the display area of the monitor in FIG.

FIG. 12 is a view showing an example of a screen on which a partial display area is displayed in the display area of FIG. 11;

FIG. 13 is a block diagram showing a configuration example of a computer provided in a microscope as a second embodiment of the present invention.

FIG. 14 is a view showing an example of a screen on which a partial display section is displayed in a display area of the monitor shown in FIG. 5;

FIG. 15 is a diagram showing an example of a screen in which the partial display unit of FIG. 14 has been moved within a display area.

FIG. 16 is a diagram showing an example of a screen in which the partial display unit of FIG. 14 is reduced in a display area.

FIG. 17 is a view showing an example of a screen in a display area of a microscope monitor.

FIG. 18 is a view showing an example of a screen in a display area of a monitor of a microscope.

FIG. 19 is a diagram showing an example of a screen in a display area of a monitor to which one of the microscope according to the first embodiment of the present invention and the microscope according to the second embodiment is applied.

[Explanation of symbols]

1 ... microscope (display device), 2 ... subject, 3 ...
・ Stage (table), 3a ・ ・ ・ Stage moving part (table), 4 ・ ・ ・ Camera base (fixed part), 5 ・ ・ ・
Monitor (display means), 5a ... display area, 6 ...
Work tool, 7: worker, 7: video camera (photographing means), 7a: video camera moving unit (moving means), 8: photographing device (image obtaining means) 9: computer (Image acquisition means), 18 ... selector, 37
··worker

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H052 AB04 AF13 AF14 AF23 AF25 5C054 AA01 CF01 CF07 EB05 FD02 GA04 GB01 HA01 5C082 AA27 BA20 CA55 CB01 CB06 DA87 MM05 MM09

Claims (5)

[Claims] 1. A photographing means for photographing a subject having a partially different depth, a moving means for moving the photographing means with respect to the subject in the depth direction to focus the photographing means, and An image acquisition unit that combines a focused portion of real images of the subject captured by shifting the photographing unit by a small distance in the depth direction by the moving unit to generate a combined image; Means, a display means for displaying the composite image, and a display area of the display means, which is displayed so as to overlap the display of the composite image in a display range smaller than the composite image, and is substantially displayed in a display range smaller than the composite image. A display device for displaying the subject at the present time. 2. The display device according to claim 1, wherein the actual image of the subject is displayed on the partial display means. 3. The display device according to claim 1, wherein the partial display unit displays a partial composite image generated from the real image of the subject by the image acquisition unit. 4. The display device according to claim 1, wherein the object is arranged, and a table that operates in accordance with the movement of the display area of the partial display means when the position of the display area is changed in the display means. 5. The display device according to claim 1, wherein the display device is a microscope for viewing a fine part of the electronic component as the subject.