JPH05127087A - Microscope system - Google Patents

Abstract

PURPOSE:To clarify the location of an image with high magnifying power while keeping the resolution close to the one displayed by the low magnifying power even when displayed in higher magnifying power. CONSTITUTION:The microscope system is composed of a first optical system 12 observing an image with the wide field of view through an objective optical system, a first photoelectric conversion element 15 converting the image formed by the first optical system into the first electrical picture signal, a second optical system 13 observing the image with the narrower field of vision in the image with the wide field of vision through the objective optical system, a second photoelectric conversion element 16 converting the image formed by the second optical system into the second electrical picture signal, a picture processing means 21 generating a picture processing signal from signals of each photoelectric conversion element, a first display 24 displaying the image observed by the first optical system according to picture processing signals, and a second display 25 displaying the image observed in the second optical system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microscope system capable of simultaneously observing a wide and narrow visual field.

[0002]

2. Description of the Related Art FIG. 6 is an external view showing an example of a conventional microscope system. A wide-field image of the microscope 61 is captured by a single camera 63 via an optical system 62, and C
After being image-processed by the CU (camera control unit) 64, it was taken into the frame memory 65 and displayed on the monitor 66.

In the conventional microscope system, when displaying a wide-field image, all the images captured in the frame memory 65 are displayed on the monitor 66, and when displaying a narrow-field image at a high magnification, the frame memory 65 is displayed. A part was extracted from the image taken in to be enlarged and displayed on the monitor 66.

[0004]

However, in the conventional technique as described above, since a wide-field image is first captured at a low magnification, when enlarged, the pixels become rough and the resolution deteriorates. There was a problem that it did.

Further, it has not been possible to simultaneously observe which part of the wide-field image is the narrow-field image.

The present invention has been made in view of the above conventional problems, and maintains a resolution close to that at the time of displaying at a low magnification even when displaying at a high magnification, and the position of an image at a high magnification. The objective is to provide a microscope system in which

[0007]

A first solution to a microscope system according to the present invention is to provide an objective optical system facing an object to be observed and an image of a wide field of view passing through the objective optical system.
A first optical system that forms an image at a magnification of, and a first photoelectric conversion element that converts the image formed by the first optical system into an electrical first image signal and outputs the image signal. , An arbitrary narrow-field image in the wide-field image that has passed through the objective optical system,
A second optical system that forms an image at a second magnification that is higher than the first magnification, and an image formed by the second optical system is converted into an electric second image signal. A second photoelectric conversion element for outputting the image signal, an image processing means for electrically processing both of the image signals to output an image processing signal, and a display for displaying according to the image processing signal Means for displaying the image formed by the first optical system, and a second screen for displaying the image formed by the second optical system. And a screen.

A second solving means is movable so as to move on an image forming surface which is a surface orthogonal to the optical axis of the second optical system and which is an image forming surface of the second optical system. A moving stage operating means for operating the movement of the moving stage; the second photoelectric conversion element is provided on the moving stage, and a second photoelectric conversion element is provided in accordance with an operation of the moving stage operating means. The photoelectric conversion element is moved on the image plane.

A third solving means is a scaling operation means for performing a scaling operation of the second magnification, and the second magnification of the second optical system according to the operation of the scaling operation means. And a variable power optical system for varying the power.

A fourth solving means is a designation signal for generating a designation signal indicating which part of the image formed by the first optical system the position of the image formed by the second optical system is. The display means is configured to display the second screen position and range in the first screen in response to the designation signal.

A fifth solving means is a surface which is provided with the second photoelectric conversion element and which is a surface orthogonal to the optical axis of the second optical system and on which the second optical system forms an image. It has a movable stage movable on a certain image plane and a movable stage operating means for operating the movement of the movable stage, and the second photoelectric conversion element is operated in accordance with the operation of the movable stage operating means. The configuration is such that it moves on the image plane and the position indicated by the designation signal also moves in accordance with the movement of the second photoelectric conversion element.

A sixth solving means is a magnification changing operation means for changing the magnification of the second magnification, and a changing magnification optical system for changing the magnification of the second magnification according to the operation of the magnification changing operation means. Has and
The range indicated by the designation signal is also changed according to the operation of the scaling operation means.

[0013]

According to the present invention, since the high-magnification image and the low-magnification image are observed independently, the pixels of the high-magnification image do not become rough and a high-resolution image can be obtained. The magnification of the second optical system for narrow field can be changed. Further, the position and range of the narrow-field image can be displayed in the wide-field image.

[0014]

The present invention will be described in detail below with reference to the drawings and the like. 1 to 5 are views showing an embodiment of a microscope system according to the present invention, FIG. 1 is an external view showing a microscope, FIG. 2 is an external view showing the entire system, and FIG. 3 is a moving stage. The perspective view shown in Fig. 4 is CCU.
FIG. 5 is a block diagram showing the above, and FIG.

The microscope 11 includes a wide-field optical system 12 for forming a wide-field image and a narrow-field optical system 13 for forming a narrow-field image.
The image of the objective lens 19 is divided by the half prism 17 (FIG. 2) and is guided to the wide-field optical system 12 and the narrow-field optical system 13 in addition to the eyepiece lens 18.

The wide-field optical system 12 is directly mounted with a low-magnification wide-field observation device 15. A high-magnification narrow-field observation device 16 is attached to the narrow-field optical system 13 via an enlargement relay optical system 14. A photoelectric conversion element such as a CCD camera can be used for each of the observation devices 15 and 16. The magnifying relay optical system 14 is for magnifying an image to an arbitrary magnification. This magnification may be fixed or variable, but in this embodiment, the magnification is 2 to 5
A double electric zoom type is used. The magnifying relay lens 14 can be moved to an arbitrary position on the plane orthogonal to the optical axis by the moving stage 30.

The images picked up by the observation devices 15 and 16 are
As shown in FIG. 2, the image is processed by the CCU 21 and displayed on the wide-field monitor TV 24 and the narrow-field monitor TV 25. The CCU 21 includes a zoom button 22 for changing the magnification of the magnifying relay optical system 14 and an X stage for the moving stage 30.
Joystick 23 for driving in Y direction
Is provided.

The moving stage 30, as shown in FIG.
An X-direction stage 32 is movably mounted on the rails of the base 31, and can be driven by an X-direction motor 33. The amount of movement of the X-direction stage 32 is detected by the X-direction encoder 34 provided in the X-direction motor 33. Further, the Y-direction stage 35 is movably mounted on the rails of the X-direction stage 32,
It can be driven by the Y-direction motor 36. The amount of movement of the Y-direction stage 35 is detected by the Y-direction encoder 37 provided in the Y-direction motor 36.

The position signals from the X-direction encoder 34 and the Y-direction encoder 37 and the zoom magnification signal of the zoom encoder 14a of the magnifying relay lens 14 are input to the CPU 21a in the CCU 21, as shown in FIG. The image synthesizing circuit 21b displays the range observed by the narrow-field observing device 16 on the wide-field monitor TV 24 by the rectangular frame 24a based on the signal stored in the memory in the CPU 21a. This frame 24a is a magnifying relay lens 4 controlled by the zoom button 22.
The size changes according to the zooming of.

In the CCU 21, as shown in FIG. 5, the coordinates (X, Y) of the stage position are detected from the X direction encoder 34 and the Y direction encoder 37 (S51), and the coordinates (x, y) of the frame position are obtained. Frame 24a on the screen until they match
Is moved (S52, S53). Next, the zoom magnification M from the zoom encoder 14a is detected (S54), and the size of the frame 24a is changed to m = 1 / M in association with the zoom magnification M (S55, S56).

[0021]

As described above, according to the present invention, an optically magnified image can be observed by the first optical system for wide field of view and the second optical system for narrow field of view independent of each other. Has the effect of not deteriorating.

Further, since the magnification of the second optical system for narrow field can be changed, the degree of freedom of observation is widened.

Further, since the position and range of the narrow-field image are displayed in the wide-field image, it is possible to immediately know where the narrow-field image is in the wide-field image.

[Brief description of drawings]

FIG. 1 is an external view showing a microscope of an embodiment of a microscope system according to the present invention.

FIG. 2 is an external view showing an entire embodiment of a microscope system according to the present invention.

FIG. 3 is a perspective view showing a moving stage of the microscope system according to the embodiment.

FIG. 4 is a block diagram showing a CCU of the microscope system according to the embodiment.

FIG. 5 is a flowchart illustrating the operation of the CCU of the microscope system according to the embodiment.

FIG. 6 is an external view showing an example of a conventional microscope system.

[Explanation of symbols]

 11 Microscope 12 Wide-field optical system 13 Narrow-field optical system 14 Enlarging relay optical system 15 Wide-field observation device (camera) 16 Narrow-field observation device (camera) 17 Half prism 18 Eyepiece 19 Objective lens 21 Camera control unit (CCU) 22 Zoom button 23 Joystick 24 Wide-view monitor TV 25 Narrow-view monitor TV 30 Moving stage

Claims (6)

[Claims] 1. An objective optical system that faces an object to be observed, a first optical system that forms an image of a wide field of view that has passed through the objective optical system at a first magnification, and the first optical system. The first photoelectric conversion element that converts the image formed by the method into an electrical first image signal and outputs the image signal, and an arbitrary narrow image in the wide-field image that has passed through the objective optical system. A second optical system that forms an image of the field of view at a second magnification that is higher than the first magnification, and an image that is formed by the second optical system and that is electrically second A second photoelectric conversion element for converting into an image signal and outputting the image signal; an image processing means for electrically processing both of the image signals to output an image processing signal; A first screen for displaying an image formed by the first optical system. , Microscope system, characterized in that a second screen for displaying the image formed by the second optical system. 2. A moving stage movable on an image forming surface which is a surface orthogonal to an optical axis of the second optical system and which is an image forming surface of the second optical system, and the moving stage. Moving stage operating means for operating the movement of the stage, the second photoelectric conversion element is provided on the moving stage, and the second photoelectric conversion element is provided in accordance with the operation of the moving stage operating means. The microscope system according to claim 1, wherein the microscope system moves relatively on the image plane. 3. A scaling operation unit that performs a scaling operation of the second magnification, and a scaling unit that scales the second magnification of the second optical system according to an operation of the scaling operation unit. The microscope system according to claim 1, further comprising a magnification optical system. 4. A designation signal generating means for generating a designation signal indicating which part of the image formed by the first optical system the position of the image formed by the second optical system is. The microscope system according to claim 1, wherein the display unit displays the second screen position and range in the first screen according to the designation signal. 5. An image forming surface provided with the second photoelectric conversion element, which is a surface orthogonal to an optical axis of the second optical system and which is an image forming surface of the second optical system. And a movable stage operating means for operating the movement of the movable stage, wherein the second photoelectric conversion element moves on the image plane in accordance with the operation of the movable stage operating means. 5. The microscope system according to claim 4, wherein the microscope system moves relatively, and the position indicated by the designation signal also moves according to the movement of the second photoelectric conversion element. 6. A zooming operation unit for zooming the second magnification, and a zooming optical system for zooming the second magnification according to an operation of the zooming operation unit, 6. The microscope system according to claim 4, wherein the range indicated by the designation signal also changes according to the operation of the scaling operation unit.