JP5087423B2 - Observation device - Google Patents

Description

  The present invention relates to an observation apparatus and a control technique for the observation apparatus. For example, the present invention relates to a technique that is effective when applied to an observation apparatus that magnifies and displays a specimen at a variable magnification.

  In recent years, an observation apparatus such as a microscope has been driven by a motorized drive unit and the operation burden on an observer has been remarkably reduced. Especially in the field where there are many observers with little knowledge about observation devices, it is becoming important not to use what observation method and how to obtain the image that you want to observe, but how to obtain it easily. .

  In addition, as described above, in the case of an observation apparatus where it is important to easily obtain an image to be observed, the focal position is adjusted while looking at the eyepiece part of the observation optical system with the naked eye like a conventional observation apparatus. Rather than observing the image, the observation image is displayed on an external monitor or display, etc., making it possible to observe by many observers, reduce observer fatigue, and easily save the observation screen. Is required.

  In addition, the objects to be observed are diversified, and the observation magnification is also required to have a wide dynamic range from low magnification (2.5 × or less) to high magnification (150 × or more), and includes a plurality of objective lenses as optical elements. By using a fixed magnification lens unit and a continuously variable zoom lens unit having a zoom lens as an optical element, even a beginner can easily observe in a wide magnification range from low magnification to high magnification.

As such an observation apparatus, for example, a technique disclosed in Patent Document 1 is known. That is, in Patent Document 1, the focus position in the observation field of view is changed even when the observation magnification is changed by controlling the software so that the moving speed of the stage and the focus is changed according to the magnification of the fixed magnification lens unit. An observation device is disclosed that moves at the same speed.
JP 2006-313311 A

  However, in the observation apparatus shown in Patent Document 1, since the switching of the fixed magnification lens unit and the magnification change of the zoom lens unit are independent, the observation magnification is sequentially changed from low to high or high to low. When observing while changing, there is a technical problem that there is room for improvement in operability because it is necessary for the observer to change the magnification of the fixed magnification lens unit and change the magnification of the zoom lens unit. It was.

  For example, if the fixed magnification lens unit is not switched after changing the magnification of the zoom lens unit, the observation image becomes too large or too small after the fixed magnification lens unit is switched, making it difficult to see. Therefore, in order not to deteriorate the visibility of the observation image, it is necessary to appropriately change the magnification of the zoom lens unit in advance in consideration of the magnification after switching the fixed magnification lens unit. Such adjustment depends on the intuition of the observer, and it also causes a reduction in the work efficiency of the observer. Therefore, improvement in operability is desired.

  An object of the present invention is an observation device with good operability that realizes a desired overall magnification without being aware of the magnification of each optical element on the premise of an observation device provided with a plurality of optical elements capable of changing the magnification. Is to provide.

In order to solve the above problems, the present invention is configured as follows.
One aspect of the observation apparatus of the present invention is an optical system that obtains an optical image of a sample via the first optical element and the second optical element;
First optical element switching means for discretely changing the magnification of the first optical element;
Zoom drive means for changing the magnification of the second optical element at smaller intervals than the first optical element;
Operation means for inputting the overall magnification;
The total magnification composed of a combination of the magnification of the first optical element and the magnification of the second optical element is added to the total magnification input from the operation means by interlocking the first optical element switching means and the zoom driving means. Control means for controlling to match ,
Display means for displaying an image of an optical image obtained through the first optical element and the second optical element,
The operation means includes a scroll bar as a means for continuously instructing the change of the overall magnification, wherein each value of the overall magnification is assigned on the scale and moves along the scale, and the first optical An observation magnification range realizable by the element switching means and the zoom driving means is displayed on the display means,
The control means prioritizes the change of the magnification of the second optical element over the change of the magnification of the first optical element when controlling the first optical element switching means and the zoom driving means in conjunction with each other. Then, control is performed so that a total magnification composed of a combination of the magnification of the first optical element and the magnification of the second optical element matches the total magnification input from the operation unit.
Configure as follows.

  Further, it further comprises detection means for detecting discrete switching of the magnification of the first optical element, and the control means, when the switching of the magnification of the first optical element is performed discretely, the zoom driving means. In conjunction with each other so that the overall magnification of the combination of the magnification of the first optical element and the magnification of the second optical element is changed together so that the overall magnification of the second optical element does not change before and after the switching. You may comprise as follows.

  Further, the control means has a plurality of control methods for making the total magnification input from the operation means match or substantially match the total magnification formed by a combination of the magnification of the first optical element and the magnification of the second optical element. In such a case, the control method may be configured such that the control method with a shorter magnification change required time is taken.

  Further, it is preferable that the control unit is configured to perform control such that the change of the total magnification from the operation unit and the display of the optical image of the total magnification after the change are performed in real time.

  In addition, when the switching of the magnification of the first optical element is performed discretely, the control means interlocks the zoom driving means, and before and after the switching, the magnification of the first optical element and the second optical element It may be configured to perform control to change both magnifications of the second optical element so that the total magnification composed of a combination with the above-mentioned magnification is increased or decreased.

  Further, when the discrete switching of the magnification of the first optical element is performed manually, the control means interlocks the zoom driving means, and the magnification of the first optical element and the magnification of the second optical element It is also possible to perform control to change both the magnifications of the second optical element so that the total magnification composed of the above combinations does not change before and after the switching.

  The first optical element is a plurality of objective lenses, the second optical element is a zoom lens, the first optical element switching means is a revolver driving means for switching from the first objective lens to the second objective lens, and The zoom driving means may be configured to be zoom magnification driving means for driving the zoom lens to change the zoom magnification.

  Further, the control means may be configured to take a control method that preferentially selects a higher resolution as the objective lens.

  According to the present invention, an observation apparatus with good operability that realizes a desired overall magnification without being aware of the magnification of each optical element on the premise of an observation apparatus provided with a plurality of optical elements capable of changing the magnification. Can be provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
FIG. 1 is a conceptual diagram illustrating an example of a configuration of an observation apparatus according to an embodiment of the present invention, and FIG. 2 is a conceptual diagram illustrating an example of a configuration of a control system of the observation apparatus according to the present embodiment. .

As illustrated in FIG. 1, the observation apparatus K <b> 1 of the first embodiment includes a microscope 1, a drive control unit 2, a coaxial incident light source 120, and a control terminal 3.
The microscope 1 is provided with a stage 110 on which a sample 109 is placed and a revolver 105 facing the stage 110. The revolver 105 holds a plurality of objective lenses 108 as first optical elements having different magnifications on the mounter 107, and switches the plurality of objective lenses 108, that is, a revolver motor that rotates the mounter 107 for discretely changing the magnifications. 106 and a revolver sensor group 117. Furthermore, the microscope 1 has a focusing unit (not shown) for focusing the sample. The focusing unit may be a mechanism that moves the stage 110 in the optical axis direction of the objective lens 108, or the microscope 1 is separated into an observation head and a gantry that holds the stage 110, and the observation head is separated from the gantry. Thus, a mechanism for moving the objective lens 108 in the optical axis direction may be used.

  In the case of the microscope 1 of the present embodiment, as the objective lens 108, for example, a 1 × low magnification objective lens 108 a and a 10 × high magnification objective lens 108 b are attached to the revolver 105. In the following description, the low magnification objective lens 108a and the high magnification objective lens 108b are collectively referred to as the objective lens 108 as necessary.

  The revolver sensor group 117 is a revolver connection sensor (not shown) that detects that the revolver 105 is connected, and a revolver sensor (not shown) that identifies which objective lens 108 is currently on the optical axis of the zoom optical system 103. And a movement completion sensor (not shown) for detecting that the objective lens 108 has been inserted into the optical axis.

  The zoom optical system 103 includes a plurality of zoom lenses 104 as second optical elements that realize observation from a low magnification to a high magnification, and a zoom lens motor 116 that drives the zoom lens 104.

  The switching time of the objective lens 108 is almost constant (several seconds), and the time required for moving the zoom lens 104 varies depending on the moving distance. The range of the observation magnification by the two objective lenses 108 and the zoom optical system 103 will be described later.

  In the microscope 1 of the first embodiment, the illumination light 120a for illuminating the sample 109 is incident on the microscope 1 from the coaxial incident light source 120 via the fiber 115. The illumination light 120 a propagated by the fiber 115 is converted into parallel light through the illumination optical system 114 and guided to the half mirror 102. The illumination light 120a reflected 90 degrees by the half mirror 102 passes through the objective lens 108 and is illuminated on the sample 109. The observation light 120 b reflected by the sample 109 passes through the objective lens 108 and the zoom optical system 103, and forms an optical image of the sample 109 on the camera 111 by the imaging lens 113.

By displaying the image of the sample 109 obtained by the camera 111 on the monitor 4 via the control terminal 3, the observer can observe the image of the sample 109 via the monitor 4.
The microscope 1 is connected to a revolver 105 that is an electric unit and a drive control unit 2 that controls the zoom optical system 103 via a microscope cable 118, and the drive control unit 2 is connected via a drive control unit cable 130. It is controlled by a control terminal 3 such as a personal computer.

  The control terminal 3 controls the drive control unit 2 with dedicated software (a control program 36 described later), further controls the camera 111 via the camera cable 121, and controls the monitor 4 via the monitor cable 122. Yes.

FIG. 2 shows an example of an electrical connection relationship among the microscope 1, the drive control unit 2, the control terminal 3, and the monitor 4 that constitute the observation device K <b> 1 of the first embodiment.
The drive control unit 2 includes a CPU 201, a ROM 202, a RAM 203, a zoom lens I / F unit 204a, a revolver I / F unit 204b, and a control terminal I / F unit 204c that are connected to each other via a bus line 205. .

  The CPU 201 is composed of, for example, a microprocessor or the like, and executes operations of the revolver motor 106 and the zoom lens motor 116 of the microscope 1 as described below under the control of the control terminal 3 by executing a control program 202a stored in the ROM 202. Control.

  The ROM 202 constituted by a nonvolatile read-only memory or the like stores the above-described control program 202a executed by the CPU 201, control data 202b stored permanently (fixed), and the like.

  Here, the control data 202b stored in the ROM 202 in this embodiment includes the type (magnification) of the objective lens 108 used as an example, the minimum / maximum zoom magnification value of the zoom optical system 103, and the zoom by the drive control unit 2. These are zoom magnification resolution (magnification step size) that can be realized by driving the lens motor 116.

A RAM 203 constituted by a memory such as an SRAM stores data such as operation data when the control program 202a stored in the ROM 202 is executed.
The zoom lens I / F unit 204 a provides a connection interface between the drive control unit 2 and the zoom lens motor 116 of the microscope 1.

The revolver I / F unit 204b provides a connection interface between the drive control unit 2, the revolver motor 106, and the revolver sensor group 117.
The control terminal I / F unit 204 c provides a connection interface between the drive control unit 2 and the control terminal 3.

  The zoom lens I / F unit 204a includes a driver 116a that drives the zoom lens motor 116 in a specified direction and drive amount based on a drive instruction from the CPU 201, and a current position counter 116b that holds the current position of the zoom lens motor 116. I have.

  The revolver I / F unit 204b includes a driver 106a that drives the revolver motor 106 in a designated direction and drive amount based on a drive instruction from the CPU 201, a current position counter 106b that holds the current position of the revolver motor 106, and a revolver sensor. A sensor register 117 a that holds the state of the group 117 is provided.

  The CPU 201 (control program 202a) of the drive control unit 2 receives a control command from the control terminal 3 to each electric unit of the microscope 1 via the control terminal I / F unit 204c, and receives the zoom lens I / F unit. After instructing 204a and the revolver I / F unit 204b, the current position counters of the zoom lens motor 116 and the revolver motor 106 are similarly passed through the zoom lens I / F unit 204a and the revolver I / F unit 204b within a predetermined time. 116b and the current position counter 106b (sensor register 117a) are checked, and when these states change, it is normally terminated, and when the state does not change, it is determined that there is an abnormality in the revolver motor 106 or the zoom lens motor 116, etc. To the control terminal 3.

The control terminal I / F unit 204 c serves to relay an instruction from the control terminal 3 as a control signal to each unit of the drive control unit 2 via the bus line 205.
On the other hand, the control terminal 3 according to the first embodiment includes a CPU 31, a ROM 32, a RAM 33, a camera I / F unit 34a, a drive control unit I / F unit 34b, and a monitor I / F that are connected to each other via a bus line 35. The unit 34c, the monitor 4, and an operation interface such as a keyboard and a mouse (not shown) are provided.

The CPU 31 executes a control program 36 stored in the ROM 32 to execute a control operation of the microscope 1 (drive control unit 2) as described later.
The ROM 32 is composed of, for example, a non-volatile memory, and stores a control program 36 and fixed data executed by the CPU 31.

The RAM 33 provides a working storage area when the control program 36 is executed. In the case of the first embodiment, it is used as a storage area for later-described control data 37 (variables).
The camera I / F unit 34 a provides a connection interface between the camera 111 and the control terminal 3 via the camera cable 121.

The drive control unit I / F unit 34 b provides a connection interface between the drive control unit 2 and the control terminal 3 via the drive control unit cable 130.
The monitor I / F unit 34 c provides a connection interface between the control terminal 3 and the monitor 4 via the monitor cable 122.

  As described above, the control terminal 36 is installed with the control program 36 as software that is operated by the observer, processes the instruction input from the observer via the operation interface, and controls the control terminal I / F unit 204c. Then, a control command 130a is transmitted to each drive unit such as the revolver motor 106 and zoom lens motor 116 of the microscope 1 to the drive control unit 2.

  Further, the CPU 31 of the control terminal 3 executes a control program 36 to transmit a camera image information such as a frame rate and the like, a transfer start / stop instruction of the captured image 121b to the camera 111 via the camera I / F unit 34a, The received image 121b is received, and further, the display instruction is given to the monitor 4 of the captured image 121b via the monitor I / F unit 34c.

  The control terminal 3 controls the camera 111 such as transfer start / stop instruction of the captured image 121b to the camera 111, transmission of camera setting information such as a frame rate, reception of the captured image 121b, and the like via the camera cable 121 from the control terminal 3. This is performed by a camera control command signal 121a transmitted to the camera 111.

The monitor I / F unit 34 c performs an operation of displaying the captured image 121 b received via the camera I / F unit 34 a on the monitor 4.
(Configuration example of stored information in the drive control unit 2 and the control terminal 3)
The CPU 201 acquires the position information of the respective motors from the zoom lens I / F unit 204a and the revolver I / F unit 204b and stores them in the RAM 203, thereby holding the current positions of the zoom optical system 103 and the revolver 105. doing.

Next, variables (control data 37) stored in the RAM 33 of the control terminal 3 will be described.
As illustrated in FIG. 3, in the case of the present embodiment, the control data 37 stored in the RAM 33 includes obsr_mag1 (current observation magnification value), zoom_mag1 (current zoom lens magnification value), revo_mag1 (in the current optical path). Objective lens magnification value), obsr_mag2 (changed observation magnification value) (changed observation magnification instruction value), zoom_mag2 (changed zoom lens magnification value), revo_mag2 (changed objective lens magnification value) ), Dm_up (change coefficient when the observation magnification is increased), dm_down (change coefficient when the observation magnification is decreased).

  That is, from the current position of the zoom optical system 103 and the revolver 105, zoom_mag1 stores the current zoom lens magnification value, and revo_mag1 stores the magnification value of the objective lens currently in the optical path. Here, the zoom lens magnification value is a numerical value at a magnification resolution (step size) on the system. For example, a numerical value in increments of 1 × is stored if the resolution is 1 ×, and a numerical value in increments of 0.5 × is stored if the resolution is 0.5 ×.

(Observation magnification) = (objective lens magnification) × (zoom lens magnification) (1)
The observation magnification (total magnification), the zoom lens magnification, and the objective lens magnification have the relationship of the expression (1), and the current observation magnification value is stored in obsr_mag1.

  In obsr_mag2, zoom_mag2, and revo-mag2, the observation magnification instruction value when the observer operates the magnification adjustment scroll unit 302 or the objective lens selection unit 304 to change the observation magnification, the zoom lens magnification value at that time, the objective Stores the lens magnification value.

For example, an operation screen 300 as a GUI (graphical user interface) illustrated in FIG. 4 will be described later. When the observation magnification is changed from 50 × to 100 × by the magnification adjustment scroll unit 302, obsr_mag2 is 100 and revo_mag2 is 10, zoom_mag2 is 10 from the equation (1). Further, when the objective lens is switched by the objective lens selection unit 304, rev_mag2 is 1, zoom_mag2 is 5, and obsr_mag2 is 5 from the equation (1).
(Configuration example of GUI (graphical user interface))
FIG. 4 shows an operation screen 300 that is an example of a GUI displayed on the monitor 4 that is a display device of the control terminal 3.

  As illustrated in FIG. 4, the operation screen 300 includes a camera image display unit 301, a magnification adjustment scroll unit 302, a magnification display unit 303 that indicates the current zoom magnification and observation magnification, and an objective lens selection unit 304.

The camera image display unit 301 is an area where a captured image 121b as an optical image received from the camera 111 is displayed.
The magnification adjustment scroll unit 302 includes a magnification scale 302a and a scroll bar 302b that moves along the magnification scale 302a. For example, when the scroll bar 302b is dragged along the magnification scale 302a by the mouse pointer 305 from the observer, the magnification value of the magnification scale 302a specified at the position of the scroll bar 302b is input as the observation magnification. The

  The objective lens selection unit 304 receives an operation of switching the objective lens 108 to either the low magnification objective lens 108a or the high magnification objective lens 108b when the observer clicks with the mouse pointer 305.

The operation screen 300 (monitor 4) may be configured by a touch panel, and the magnification adjustment scroll unit 302 and the magnification display unit 303 may be operated by a touch operation by an observer instead of the mouse pointer 305.
(Explanation of observation magnification range)
FIG. 5 is a conceptual diagram showing an example of the observation magnification range in the microscope 1 of the present embodiment. In the description of the present embodiment, the numerical values of the objective lens 108 and the zoom lens magnification range of the zoom optical system 103 in the following observation magnification ranges W1 to W3 are described using the numerical values illustrated in FIG. To do.

  As illustrated in FIG. 5, in the microscope 1 of the present embodiment, the observation magnification range can take the following three states depending on the magnification of the objective lens 108 to be used and the zoom magnification range of the zoom optical system 103. .

W1: When the observation magnification becomes discontinuous (example: objective lens magnification is 1 × and 20 ×, zoom magnification range is 1 to 10 ×, in increments of 1 ×)
W2: When observation magnification is continuous (example: objective lens magnification is 1 × and 10 ×, zoom magnification range is 1 to 10 ×, in increments of 1 ×)
W3: When observation magnifications overlap (example: objective lens magnification is 1 × and 5 ×, zoom magnification range is 1-10 ×, 1 × increments)
[Action]
The operation of the observation apparatus K1 of the present embodiment configured as described above will be described with reference to the flowchart of FIG.

  The processing illustrated in the flowchart of FIG. 6 is roughly divided into an “object lens non-switching processing section (only zoom lens magnification is changed)” and an “objective lens switching processing section”. The process illustrated in FIG. 6 is performed by a CPU 31 (microcomputer) that executes a control program 36 stored in the ROM 32 in the control terminal 3.

  First, the control terminal 3 is turned on (step S100), and the initialization operation of each motorized portion of the microscope 1 and the activation of software such as the control program 36 (that is, the CPU 31 starts executing the control program 36) are performed.

  When the control program 36 is activated, the control terminal 3 issues an instruction to acquire the current position of the zoom optical system 103 to the drive control unit 2, acquires the current position response of the zoom optical system 103 from the drive control unit 2, and then the control terminal 3. The current zoom magnification value is stored in zoom_mag1 of the RAM 33.

  Similarly, with respect to the revolver 105, an instruction to obtain which objective lens 108 is on the optical axis is issued to the drive control unit 2, and a response from the drive control unit 2 is obtained. The current objective lens magnification value is stored in revo_mag1 of the RAM 33.

  Thereafter, the control terminal 3 transmits an image transfer start instruction to the camera 111, acquires a camera image signal, and starts display on the camera image display unit 301 on the operation screen 300 of the monitor 4.

  Further, the current observation magnification value is stored in obsr_mag1 from zoom_mag1 and revo_mag1, and the current information (objective lens type (magnification), zoom lens magnification, observation magnification) is stored in the magnification display unit 303 on the operation screen 300 (GUI). indicate. These processes are initial processes performed after observation start (power ON) (step S101).

  In the control program 36 on the control terminal 3, the position of the scroll bar 302b of the magnification adjustment scroll unit 302 is moved, or an instruction with the mouse pointer 305 at an arbitrary observation magnification position on the magnification scale 302a, or the objective lens with the mouse pointer 305. When there is an instruction to change the observation magnification by operating the selection unit 304 (step S102), it is determined whether the objective lens is switched or the zoom lens is moved (step S103).

  If the change instruction is an operation input of the magnification adjustment scroll unit 302, the process proceeds to an “object lens non-switching processing unit”.

  When the “objective lens non-switching processing unit” is entered in response to the operation input of the magnification adjustment scroll unit 302 on the operation screen 300, the magnification adjustment scroll unit 302 stores obsr_mag 2 in the control data 37 stored in the RAM 33 in the control terminal 3. The indicated value is stored. The current objective lens magnification value is stored in rev_mag2, and a numerical value obtained by dividing obsr_mag2 by rev_mag2 is stored in zoom_mag2 as a zoom magnification value to be moved.

  The control terminal 3 issues a zoom lens drive instruction to the drive control unit 2 so as to move to the position zoom_mag2 (step S104), and updates the display of the operation screen 300 (GUI) such as the magnification adjustment scroll unit 302 and the magnification display unit 303. After updating the current value data of the control data 37 such as zoom_mag1, revo_mag1, obsr_mag1, etc. (step S105), it waits again for an observation magnification change instruction (step S102).

  On the other hand, when an operation input of the objective lens selection unit 304 is received on the operation screen 300, when the “objective lens switching processing unit” is entered, the zoom optical system 103 is currently displayed in revo_mag 2 of the RAM 33 in the control terminal 3. The objective lens magnification value of the objective lens 108 not entering the optical path is stored. In zoom_mag2, the current zoom lens magnification value is stored as it is, and from zoom_mag2 and revo_mag2, the observation magnification value after switching the objective lens is stored in obsr_mag2.

  Here, it is determined whether the observation magnification value after switching the objective lens is larger than the current observation magnification value (obsr_mag2> obsr_mag1) (step S107). If the observation magnification value after switching is larger, “switching process A” is performed. ", The process proceeds to" switching process B ".

  “Switching process A” is a process when the observation magnification increases. Upon entering this process, it is determined whether the current observation magnification can be realized with the objective lens magnification value after switching (step S201).

  If the value obtained by dividing the current observation magnification value (obsr_mag1) by the objective lens magnification value (revo_mag2) after switching is equal to or greater than the minimum zoom magnification, the same or nearly the same observation magnification can be realized even if the objective lens 108 is switched. It can be judged that it is in a state.

For example, when the observation magnification range of the microscope 1 is the observation magnification range W3 according to FIG. 5 and the objective lens 108 is switched from the observation magnification of 10 ×,
obsr_mag1 / revo_mag2 (= 10/5) ≧ 1 (minimum zoom magnification) (2)
Thus, even if the objective lens 108 is switched, if the zoom lens magnification is set to 2 ×, the observation magnification does not change.

  If obsr_mag1 is 6 to 9, the calculation result of equation (2) is 1.2 to 1.8 and the calculation result is true. However, since the zoom lens 104 is in 1 × increments, it is rounded off by rounding off later. Processing is performed. In the observation magnification range W2, there is an observation magnification that is true at one location, and in the observation magnification range W1, no observation magnification is true.

  When the calculation result of the expression (2) is “true”, a value obtained by rounding off the previous calculation result (for example, 2 if 1.8) is stored in zoom_mag2 (step S202), and zoom lens movement and objective are obtained from zoom_mag2 and revo_mag2. The observation magnification after lens switching is stored in obsr_mag2. The control terminal 3 issues a zoom lens drive instruction to the drive control unit 2 so as to move to the position zoom_mag2 (step S203), and issues an instruction to switch the objective lens to revo_mag2 to the drive control unit 2 (step S204).

  When it is received from the drive control unit 2 that the switching of the objective lens 108 and the movement of the zoom lens 104 have been completed (step S210), the display of the operation screen 300 (GUI) is updated and the current value data such as the control data 37 is updated. (Step S212) is performed, and an instruction to change the observation magnification is awaited again (Step S102).

  When the calculation result of the expression (2) is “false”, the minimum zoom magnification value is stored in zoom_mag2 (step S205), and from zoom_mag2 and revo_mag2, the observation magnification after zoom lens movement and objective lens switching is stored in obsr_mag2. The The control terminal 3 issues a zoom lens drive instruction to the drive control unit 2 so as to move to the position zoom_mag2 (step S206), and further issues an objective lens switching instruction to revo_mag2 to the drive control unit 2 (step S208).

  Thereafter, when the control terminal 3 receives from the drive control unit 2 that the switching of the objective lens 108 and the movement of the zoom lens 104 have been completed (step S210), the control terminal 3 updates the display of the operation screen 300 (GUI) and the control data 37. Is updated (step S212), and an instruction to change the observation magnification is awaited again (step S102).

  Next, the “switching process B” will be described. “Switching process B” is a process when the observation magnification decreases. Upon entering the process, as in “switching process A”, it is determined whether the current observation magnification can be realized with the objective lens magnification value after switching (step S213).

  If the value obtained by dividing the current observation magnification value (obsr_mag1) by the objective lens magnification value (revo_mag2) after switching is less than or equal to the maximum zoom magnification, the same or nearly the same observation magnification can be realized even if the objective lens 108 is switched. Is in a state.

For example, when the observation magnification range of the microscope 1 is the observation magnification range W3 illustrated in FIG. 5 and the objective lens 108 is switched from the observation magnification of 5 ×,
obsr_mag1 / revo_mag2 (= 5/1) ≦ 10 (maximum zoom magnification) (3)
Thus, even if the objective lens 108 is switched, if the zoom lens magnification is set to 5 ×, the observation magnification does not change. In this example, all the calculation results of equation (3) are divisible, but depending on the magnification of the objective lens 108, the numerical value may be less than the resolution of the zoom optical system 103. In this case, similarly to the “switching process A”, a process of rounding off by rounding off or the like is performed later. In the observation magnification range W2, there is an observation magnification that is true at one location, and in the observation magnification range W1, no observation magnification is true.

  When the calculation result of the expression (3) is “true”, a value obtained by rounding off the previous calculation result is stored in zoom_mag2 (step S214). From zoom_mag2 and revo_mag2, an observation magnification value after zoom lens movement and objective lens switching is obtained. Stored in obsr_mag2. The control terminal 3 issues a zoom lens drive instruction to the drive control unit 2 so as to move to the position zoom_mag2 (step S215), and issues an objective lens switching instruction to revo_mag2 to the drive control unit 2 (step S216).

  When it is received from the drive control unit 2 that the switching of the objective lens 108 and the movement of the zoom lens 104 has been completed (step S210), the display of the operation screen 300 (GUI) is updated and the current value data of the control data 37 is updated (step S210). S212) is performed, and an instruction to change the observation magnification is awaited again (step S102).

  When the calculation result of the expression (3) is “false”, the maximum zoom magnification value is stored in zoom_mag2 (step S217), and the zoom magnification and the observation magnification after switching the objective lens are stored in obsr_mag2 from zoom_mag2 and revo_mag2. The As in the case of “true”, the control terminal 3 issues a zoom lens drive instruction to the drive control unit 2 so as to move to the position zoom_mag2 (step S218), and issues an instruction to switch the objective lens to revo_mag2 in the drive control unit 2. (Step S219).

When it is received from the drive control unit 2 that the switching of the objective lens 108 and the movement of the zoom lens 104 has been completed (step S210), the display of the operation screen 300 (GUI) is updated and the current value data of the control data 37 is updated (step S210). S212) is performed, and an instruction to change the observation magnification is awaited again (step S102).
[effect]
In the case of the first embodiment, since the control program 36 of the control terminal 3 controls the switching of the objective lens 108 and the change of the zoom magnification of the zoom optical system 103 in conjunction with each other, the observer can change the observation magnification. Sometimes, it is not necessary to perform complicated operations such as manually adjusting the zoom magnification of the zoom optical system 103, and the operability of the observer in the observation apparatus K1 can be improved.

  In addition, since the zoom optical system 103 is moved so that the magnification difference before and after the change of the observation magnification by the operation of the operation screen 300 is reduced, the observation magnification does not suddenly change greatly even when the objective lens 108 is switched. Therefore, the observation efficiency of the observer can be increased.

  In addition, since the observer who uses the observation apparatus K1 does not require specialized knowledge for operating the observation apparatus K1, the observer's understanding and recognition of the image is accelerated, and thus the highly versatile observation apparatus K1. Can provide.

In the present embodiment, an electric revolver that is operated by a revolver motor 106 is used as the revolver 105. However, since switching of the objective lens 108 may be detected by a sensor or the like, it can be easily applied to a manual revolver. Is possible.
(Modification of Embodiment 1)
FIG. 7 is a flowchart showing a modification of the above-described first embodiment.

This modification exemplifies a case where the magnification is controlled so as to be different by a predetermined ratio before and after the change in the observation magnification by switching the objective lens.
[Constitution]
Since the configuration of this modification is the same as that of the first embodiment described above, description thereof is omitted. Note that the processing in the flowchart of FIG. 7 below is realized by the CPU 31 executing the control program 36 installed in the control terminal 3.
[Action]
The operation of this modification will be described with reference to the flowchart of FIG.

  In the present modification, in the flowchart (FIG. 6) of the above-described first embodiment, the operations leading to “switching processing A” and “switching processing B” in the “object switching processing unit” and a part of the operations are performed. Since only the different operations are performed, the operations other than the different operations are denoted by the same reference numerals as those in the first embodiment, and description thereof is omitted.

  In the control program 36 on the control terminal 3, if the observation magnification change instruction is an operation input of the objective lens selection unit 304 (step S 103), the revo_mag 2 of the RAM 33 in the control terminal 3 currently contains the zoom optical system 103. The objective lens magnification value of the objective lens 108 that is not in the optical path is stored. In zoom_mag2, the current zoom lens magnification value is stored as it is, and from zoom_mag2 and revo_mag2, the observation magnification value after switching the objective lens is stored in obsr_mag2.

  Here, it is determined whether the observation magnification value after switching the objective lens is larger than the current observation magnification value (obsr_mag2> obsr_mag1) (step S107). If the observation magnification value after switching is larger, (4) As shown in the equation, a value obtained by multiplying the current observation magnification value (obsr_mag1) by the coefficient dm_up as the observation magnification value to be changed is updated and stored as the current observation magnification value (step S220), and the process proceeds to “switching process A”. (Step S221).

obsr_mag1 = obsr_mag1 × dm_up (4)
When the observation magnification value decreases after switching, a value obtained by multiplying the current observation magnification value by the coefficient dm_down is updated and stored as the current observation magnification value as the observation magnification value to be changed (step S222). (Step S223).

obsr_mag1 = obsr_mag1 × dm_down (5)
The coefficients dm_up and dm_down are set as control data 37. For example, when the current observation magnification value is 10 ×, the coefficient dm_up is 1.2, and dm_down is 0.8, Expressions (4) and (5) Accordingly, the current observation magnification value of the magnification display unit 303 of the operation screen 300 is updated to 12 × and 8 ×, and the process proceeds to “switching process A” and “switching process B”, respectively. The operation after the shift is the same as that in the first embodiment.
[effect]
According to the modification of the first embodiment, in addition to the effects of the first embodiment, the camera image display unit 301 on the operation screen 300 is watched when the observation magnification is changed by switching the objective lens. For a large number of observers, there is an image change (magnification change) at a predetermined ratio on the observation image before and after the change, so that the observer can surely recognize that the observation magnification has been changed. Efficiency and operability of the observation apparatus K1 can be further improved.

In this modification, when the observation magnification is changed by switching the objective lens, it is set to x1.2 at the time of enlargement and x0.8 at the time of reduction. It can also be easily applied to be able to set.
(Embodiment 2)
FIG. 8 is an explanatory diagram showing a configuration example of an operation screen (GUI) in an observation apparatus according to another embodiment of the present invention, and FIG. 9 is a flowchart showing an example of the operation thereof.

The second embodiment exemplifies an observation apparatus that allows the observer to perform observation without being aware of switching of the objective lens 108.
[Constitution]
Where the configuration of the observation apparatus of the second embodiment is different from the observation apparatus K1 of the second embodiment, an operation screen (GUI) on which an observer inputs an instruction to change the observation magnification and a control function of the control program 36 Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

As illustrated in FIG. 8, in the observation device K <b> 1 of the second embodiment, the operation screen 310 is displayed on the monitor 4 of the control terminal 3.
As shown in the figure, the GUI operation screen 310 includes a camera image display unit 311, a magnification adjustment scroll unit 312, a magnification display unit 313 that indicates a zoom magnification and an observation magnification, and a mouse pointer 305.

The magnification adjustment scroll unit 312 includes a magnification scale 312a and a scroll bar 312b moved along the magnification scale 312a.
The observer can instruct the control terminal 3 to change the observation magnification by operating the scroll bar 312b with the mouse pointer 305.

Note that the operation screen 310 (monitor 4) may be configured with a touch panel, similar to the operation screen 300 described above.
[Action]
The operation of the observation apparatus K1 of the present embodiment will be described along the flowchart of FIG. The operation illustrated in the flowchart of FIG. 9 is realized by the CPU 31 executing the control program 36 installed in the control terminal 3.

  Here, the process from when the control terminal 3 is turned on until the observation magnification change instruction is awaited (steps S100 → S101 → S102) is the same as in the first embodiment, and is the same as in the first embodiment. Reference numerals are assigned and description is omitted.

  The CPU 31 that executes the control program 36 on the control terminal 3 stores an instruction value in obsr_mag2 of the RAM 33 in the control terminal 3 when there is an instruction to change the observation magnification in the magnification adjustment scroll unit 312 (step S102).

Next, it is determined whether or not the instruction value (obsr_mag2) can be realized by the objective lens 108 currently in the optical path (step S301).
This determination is made as shown in the equation (6) based on whether or not the value obtained by dividing obsr_mag2 by revo_mag1 is within the zoom magnification range and is divisible by the resolution of the zoom lens.

Minimum zoom magnification ≦ (obsr_mag2 / revo_mag1) ≦ maximum zoom magnification
and
{(Obsr_mag2 / revo_mag1) / zoom lens resolution} is divisible (6)
When the calculation result is “true”, it is not necessary to switch the objective lens 108. Therefore, the processing proceeds to the “object lens non-switching processing unit”, and when the calculation result is “false”, it is necessary to switch the objective lens 108. Therefore, the process proceeds to the “objective lens switching processing unit”.

  When the “object lens non-switching processing unit” is entered, the current objective lens magnification value is stored in revo_mag2 of the RAM 33 in the control terminal 3, and the zoom magnification value to be moved is stored in zoom_mag2 from obsr_mag2 and revo_mag2. The control terminal 3 issues a zoom lens drive instruction by zoom_mag2 to the drive control unit 2 (step S304), updates the display of the operation screen 310 (GUI) (step S305), and then waits for an observation magnification change instruction again. (Step S102).

  Next, when the “objective lens switching processing unit” is entered, the objective lens magnification value after switching is stored in revo_mag2 of the RAM 33 in the control terminal 3, and the zoom magnification value to be moved is zoom_mag2 from obsr_mag2 and revo_mag2. Stored in

Subsequently, the control terminal 3 determines whether or not the current zoom lens magnification value and the zoom lens magnification value at the observation magnification instruction value to be changed are the same value (step S307).
(Obsr_mag2 / revo_mag2) = (obsr_mag1 / revo_mag1) (7)
This determination is made using equation (7). This confirms whether or not the zoom lens 104 needs to be moved. For example, if the current observation magnification value is 20 × and the instruction value is 2 × in the observation magnification range W2, the zoom lens magnification value is Both are 2 × and the calculation result is “true”. Of course, if the zoom lens magnification value is the same, there is no need to move the zoom lens 104, and the instruction value can be realized only by switching the objective lens. Based on the determination of equation (7), the branch to the “true” side shifts to “switching process C”, and the branch to the “false” side shifts to “switching process D”.

  Upon entering the “switching process C”, the control terminal 3 issues an objective lens switching instruction to rev_mag2 to the drive control unit 2 (step S310), and then receives from the drive control unit 2 that the objective lens switching has been completed. Then, the display of the operation screen 310 (GUI) is updated and the current value data is updated (step S315), and an instruction to change the observation magnification is awaited again (step S102).

Next, the “switching process D” will be described. Upon entering the process, the control terminal 3 issues a zoom lens driving instruction with zoom_mag2 to the drive control unit 2 (step S317), and further issues an objective lens switching instruction to revo_mag2 to the drive control unit 2 (step S319). When the fact that the switching of the objective lens and the movement of the zoom lens has been completed is received from the drive control unit 2 (step S321), the display of the operation screen 310 (GUI) is updated (step S315), and an instruction to change the observation magnification is again given. (Step S102).
[effect]
In the case of the second embodiment, in addition to the effects of the first embodiment described above, the observer does not need to be aware of the switching of the objective lens 108 and can concentrate on the observation. The observation efficiency of the person can be further increased.

In addition, since the operation screen 310 as the operation unit is only the magnification adjustment scroll unit 312 as the instruction unit for changing the observation magnification, the specialized knowledge necessary for the operation of the observer's observation apparatus K1 is further reduced. Therefore, a more versatile observation device K1 that anyone can observe can be provided.
(Modification 1 of Embodiment 2)
FIG. 10 is a flowchart showing a first modification of the second embodiment.

In the first modification, when an observation magnification that can be realized by either the low-magnification side objective lens or the high-magnification side objective lens is instructed, observation at higher resolution (on the higher magnification side having a larger NA (numerical aperture)) is performed. An example in which control is performed so that the objective lens can be selected) will be described.
[Constitution]
Since the configuration of the first modification is the same as that of the above-described second embodiment, a duplicate description is omitted.
[Action]
The operation of the observation apparatus K1 in this modification will be described along the flowchart of FIG. The operation of the flowchart illustrated in FIG. 10 is realized by the CPU 31 executing the control program 36 in the control terminal 3.

  In the present modification, the operations leading to the “object lens switching non-processing unit” and the “objective lens switching processing unit” are different in the flowchart (FIG. 9) of the second embodiment described above. Description of the operation of is omitted. Similarly, the description from the time the control terminal 3 is turned on until the input of the observation magnification change instruction (steps S100 → S101 → S102) is also omitted.

  When the CPU 31 that executes the control program 36 on the control terminal 3 is instructed to change the observation magnification in the magnification adjustment scroll unit 312 (step S102), the CPU 31 stores the instruction value in obsr_mag2 of the RAM 33 in the control terminal 3 and stores it in revo_mag2. Stores the magnification value of the objective lens that is not currently in the optical path.

Next, it is determined whether or not the instruction value (obsr_mag2) can be realized by the objective lens 108 currently in the optical path (step S401).
The determination is performed by the expression (6), as in the second embodiment.

If the calculation result is “false”, the objective lens 108 needs to be switched, and the process proceeds to the “objective lens switching processing unit” (step S405).
When the calculation result is “true”, it is determined whether or not the instruction value (obsr_mag2) can be realized by the objective lens 108 that is not currently in the optical path of the zoom optical system 103 (step S402).

The determination is performed based on whether the value obtained by dividing obsr_mag2 by revo_mag2 is within the zoom magnification range and the value is divisible by the resolution of the zoom lens, as shown in equation (8).
Minimum zoom magnification ≦ (obsr_mag2 / revo_mag2) ≦ maximum zoom magnification
and
{(Obsr_mag2 / revo_mag2) / zoom lens resolution} is divisible (8)
When the calculation result is “false”, it is not necessary to switch the objective lens, and the process proceeds to the “object lens non-switching processing unit” (step S404).

When the calculation result is “true”, the instruction value can be realized by both the low-magnification objective lens 108a and the high-magnification objective lens 108b. Next, it is determined whether or not the objective lens 108 currently in the optical path is the high-magnification objective lens 108b (step S403). If the objective lens 108b is the high-magnification objective lens 108b, the “objective lens non-switching processing unit” is entered (step S404). In the case of the low-magnification objective lens 108a, the process proceeds to the “objective lens switching processing unit” (step S405).
[effect]
In the case of this modified example 1, in addition to the effect of the above-described second embodiment, when changing the observation magnification, the sample 109 can always be observed in a high resolution state as much as possible. Since it is possible to concentrate, the observation efficiency of the observer can be further increased.

  In addition, the observer does not need to be aware of the resolution performance of the objective lens 108, and the technical knowledge required for the observer for the operation of the observation apparatus K1 can be further reduced. A more versatile observation device K1 that can be observed can be provided.

In the first modification, the high-magnification side high-magnification objective lens 108b having a large NA is selected. On the contrary, the low-magnification side low-magnification objective lens 108a (having a deep focal depth) is selected. Of course, it is also possible to do so. In this case, there is an advantage that an image having a deep focal depth can be obtained.
(Modification 2 of Embodiment 2)
FIG. 11 is a flowchart showing an example of the operation of the second modification of the second embodiment of the present invention.

In this modified example, an observation apparatus K1 that operates so that the switching time is shortened when an observation magnification that can be realized by either the low magnification side objective lens or the high magnification side objective lens is designated.
[Constitution]
Since the configuration of the second modification is basically the same as that of the second embodiment, only different parts will be described.

In this case, the control data 202b of the ROM 202 in the drive control unit 2 stores required time data required to move from the minimum zoom magnification value and the maximum zoom magnification value to each zoom lens magnification value. 3 can calculate the time required to move the zoom lens 104 to a certain magnification value from the required time data and the current zoom lens magnification value.
[Action]
The operation of the second modification will be described with reference to the flowchart of FIG.

  In the second modification, as in the first modification, in the flowchart (FIG. 9) of the second embodiment, only the operations leading to the “object lens switching non-processing unit” and the “objective lens switching processing unit” are different. Therefore, description of operations other than those operations is omitted. Similarly, the description from the time the control terminal 3 is turned on until the input of the observation magnification change instruction (steps S100 → S101 → S102) is also omitted.

  When the CPU 31 that executes the control program 36 installed in the control terminal 3 has an instruction to change the observation magnification in the magnification adjustment scroll unit 312 (step S102), the CPU 31 stores the instruction value in obsr_mag2 of the RAM 33 in the control terminal 3, Revo_mag2 stores the magnification value of the objective lens that is not currently in the optical path.

Next, it is determined whether or not the instruction value (obsr_mag2) can be realized by the objective lens 108 currently in the optical path of the zoom optical system 103 (step S501).
The determination is performed by the expression (6), as in the second embodiment.

When the calculation result is “false”, the objective lens 108 needs to be switched, and the process proceeds to the “objective lens switching processing unit” (step S504).
If the calculation result is “true”, it is determined whether or not the instruction value (obsr_mag2) can be realized by the objective lens 108 that is not currently in the optical path of the zoom optical system 103 (step S502).

This is also performed by equation (8), as in the first modification.
When the calculation result is “false”, it is not necessary to switch the objective lens 108 and the process proceeds to the “object lens non-switching processing unit” (step S505).

  When the calculation result is “true”, the instruction value can be realized by both the low-magnification objective lens 108a and the high-magnification objective lens 108b. Next, the switching time when the indicated value is realized in each of the objective lens 108 that is currently in the optical path and the objective lens 108 that is not in the optical path is set as the switching time T1 and the switching time T2, respectively, by the equation (9). The sizes are compared (step S503).

Switching time T1> Switching time T2 (9)
Switching time T1: Moving time of zoom lens 104 Switching time T2: Switching time of objective lens 108 + moving time of zoom lens 104 When the switching time T1 is larger, the processing shifts to “objective lens switching processing section” (step S504) When the switching time T1 is shorter, the process proceeds to the “object lens non-switching processing unit” (step S505).
[effect]
In the case of this modified example 2, in addition to the effect of the above-described second embodiment, when changing the observation magnification, it can always be the shortest change required time, and the waiting time of the observer is shortened. Since it can concentrate on observation more, an observer's observation efficiency can further be raised.

In addition, the observer does not need to be aware of the time required for changing the magnification, and can further reduce the specialized knowledge required for the observer to operate the observation apparatus K1, so that anyone can observe. A more versatile observation device K1 can be provided.
(Embodiment 3)
FIG. 12 is an explanatory view showing a configuration example of an operation screen (GUI) in an observation apparatus which is still another embodiment of the present invention, and FIG. 13 is a flowchart showing an example of the operation thereof.

The third embodiment exemplifies an observation apparatus that operates so as to perform real-time observation that is immediately linked to an observer's observation magnification change instruction input.
[Constitution]
Since the configuration of the observation device K1 of the third embodiment is basically the same as that of the second embodiment, only different parts will be described.

The difference from the above-described second embodiment is an operation screen (GUI) portion where the observer inputs an instruction to change the observation magnification.
That is, as illustrated in FIG. 12, the operation screen 410 (GUI) displayed on the monitor 4 that is the display device of the control terminal 3 in the observation device K1 of the second embodiment is the camera image display unit 411, the zoom magnification. And a magnification display portion 412 indicating the magnification of the objective lens and the observation magnification, a magnification adjustment scroll portion 413, and a mouse pointer 305.

  The magnification adjustment scroll unit 413 includes a scale 413a and a scroll bar 413b. For example, when the observer drags with the mouse pointer 305 and moves the scroll bar 413b along the scale 413a, the observation magnification is continuously changed. A change instruction is issued. Alternatively, by specifying (clicking) an arbitrary position of the scale 413a with the mouse pointer 305, an arbitrary observation magnification value can also be specified discretely.

In this case, the scale 413a of the magnification adjustment scroll unit 413 is logarithmic (logarithmic scale), and the observation magnification range that can be realized with the two objective lenses 108 and the zoom magnification range is surrounded by the frame lines 413c and 413d. It is displayed with emphasis.
[Action]
The operation of the observation apparatus K1 according to the third embodiment will be described along the flowchart of FIG. The operation of the flowchart illustrated in FIG. 13 is realized by the CPU 31 executing the control program 36 installed in the control terminal 3.

  As in the previous embodiments, first, the control terminal 3 is powered on (step S100), and the initialization operation of various electric parts and the activation of the control program 36 are performed. When the control program 36 is activated and execution is started, the control terminal 3 issues an instruction to acquire the current position of the zoom optical system 103 to the drive control unit 2, and sends a current position response of the zoom optical system 103 from the drive control unit 2. After the acquisition, the current zoom magnification value is stored in zoom_mag1 of the control data 37 stored in the RAM 33 in the control terminal 3.

  Similarly, with respect to the revolver 105, the drive control unit 2 is instructed to acquire which objective lens 108, the low magnification objective lens 108a or the high magnification objective lens 108b, is on the optical axis of the zoom optical system 103. After obtaining the response from the drive control unit 2, the current objective lens magnification value is stored in rev_mag 1 of the control data 37 stored in the RAM 33 in the control terminal 3.

  Thereafter, the control terminal 3 transmits an image transfer start instruction to the camera 111, acquires a camera image signal, and starts display on the monitor 4. Further, the current observation magnification value is stored in obsr_mag1 from zoom_mag1 and revo_mag1, and current information (objective lens type (magnification), zoom lens magnification, observation magnification) is stored in the magnification display unit 412 on the operation screen 410 (GUI). Is displayed.

  At this time, the observation magnification range that can be realized by the objective lens magnification and the zoom magnification range currently in the optical path of the zoom optical system 103 is emphasized by surrounding the scale 413a with the frame line 413c, the frame line 413d, and the like. Is displayed. These are initial processes performed after observation start (power ON) (step S601).

  The control terminal 3 constantly monitors the position of the scroll bar 413b of the magnification adjustment scroll unit 413 on the operation screen 410 (GUI), and whether the instruction to change the observation magnification is due to the movement of the scroll bar 413b or otherwise (scale) It is determined whether an arbitrary observation magnification position on 413a is specified by the mouse pointer 305 or not (step S602).

  If the observation magnification change instruction is not the movement of the scroll bar 413b (in the case of a discrete instruction), the instruction value is stored in obsr_mag2 of the control data 37 in the RAM 33 in the control terminal 3, and then the normal observation magnification is obtained. Perform the change operation. Since this operation is the same as that of the above-described second embodiment (“objective lens switching absence processing unit”, “objective lens switching presence processing unit”), description thereof is omitted.

  When the input of the change instruction is due to the movement of the scroll bar 413b, the control operation of the control terminal 3 shifts to the “real time observation processing unit”. Upon entering the “real-time observation processing unit”, the control terminal 3 restricts the movement of the scroll bar 413b on the operation screen 410 (GUI) so that only the magnification change corresponding to the movement time of the zoom lens 104 can be performed (step S1). S603).

This is a process for preventing the real-time property from being impaired because the movement time of the zoom lens 104 increases when the observation magnification is greatly changed.
The control terminal 3 stores the instruction value in obsr_mag2 of the control data 37 of the RAM 33 in the control terminal 3, the current objective lens magnification value in rev_mag2, and the numerical value obtained by dividing obsr_mag2 by revo_mag2 as the zoom magnification value to be moved. When stored in zoom_mag2, the zoom lens drive instruction is issued to the drive control unit 2 so as to move to the position of zoom_mag2 (step S604).

  Thereafter, the display of the operation screen 410 (GUI) such as the magnification display unit 412 or the magnification adjustment scroll unit 413 is updated, and the current value data of the control data 37 such as zoom_mag1, revo_mag1, obsr_mag1 is updated (step S605). These operations (steps S604 and S605) are looped until the movement of the scroll bar 413b is ended by determining whether the movement of the scroll bar 413b is continuing (step S606).

When the movement operation of the scroll bar 413b is finished, the movement restriction of the scroll bar 413b on the operation screen 410 (GUI) is released (step S607), and an instruction to change the observation magnification is again waited (step S602) (end of real-time observation). .
[effect]
In the case of the third embodiment, in addition to the effect of the second embodiment described above, since the real-time observation can be performed while changing the observation magnification in real time, the operability of the observation device K1 is improved. Since it is possible to concentrate more on observation, the observation efficiency of the observer can be further increased.

  In addition, if the movement of the zoom lens 104 takes time, the real-time property of changing the observation magnification is reduced. Therefore, in the third embodiment, the scroll bar 413b can be moved only in accordance with the movement time of the zoom lens 104. However, in the case of an operation input that greatly changes the zoom magnification, the real-time observation may be discontinued and control may be performed so as to perform normal zoom lens movement.

Further, in the real-time observation of the third embodiment, only the zoom lens 104 is moved, but the minimum zoom magnification value is reached when the maximum zoom magnification value is reached when the low magnification objective lens 108a is used or when the high magnification objective lens 108b is used. Of course, it is possible to perform control so as to switch the objective lens 108 in the case of reaching.
(Overall modification)
The present invention is not limited to the first, second, and third embodiments, and may be modified as follows.

  For example, in each of the above-described embodiments (Embodiment 1, Modification of Embodiment 1, Embodiment 2, Modification 1 and 2 of Embodiment 2), a fixed zoom optical system 103 is provided. Although the observation apparatus K1 is exemplified, the zoom optical system 103 can be easily applied even if it is replaceable.

  In each of the embodiments, the coaxial epi-illumination source 120, the illumination optical system 114, and the coaxial epi-illumination using the objective lens 108 have been described. However, other illumination such as transmission illumination, ring illumination, and tilt illumination is also used. It may be replaced, and the present invention can be applied even when a combination or a plurality of illumination optical systems are provided.

  In addition, the resolution (step size) of the zoom lens magnification is one type, but is not limited thereto, and for example, a plurality of resolutions may be provided so that each objective lens or a user can select.

Further, the objective lens 108 has two types of the low-magnification objective lens 108a and the high-magnification objective lens 108b, but it can be applied by considering the relationship before and after the switching even in the case of more than that.
Of course, other than those exemplified, such as the magnification of the objective lens 108, the magnification of the zoom optical system 103, and the resolution of the zoom optical system 103 may be used.

  Further, for example, the objective lens selection unit 304 of the operation screen 300 (GUI) of the first embodiment illustrated in FIG. 4 may be added to the operation screen 410 (GUI) of the third embodiment illustrated in FIG. Is possible.

  Furthermore, the logarithmic display of FIG. 12 is added to the configuration of the operation screen 300 (GUI) of the first embodiment illustrated in FIG. 4 and the configuration of the operation screen 310 (GUI) of the second embodiment illustrated in FIG. It is also possible to combine the embodiments, such as adding a scale 413a.

Furthermore, it is also possible to combine each embodiment and the modified example, arbitrarily select each operation flow as a control mode, or switch between them.
It should be noted that the operation and processing of the control unit in the present embodiment are not limited to these, and various changes can be easily achieved without departing from the spirit of the disclosure.

As described above, according to each embodiment of the present invention, the following effects can be obtained.
(1) Since the zoom lens is moved so that the difference in magnification before and after the observation magnification is changed, the observation magnification does not change suddenly even when the objective lens is switched. Accordingly, it is not necessary to perform a wasteful operation such as magnification adjustment in the observation after the magnification change, and the observation efficiency of the observer can be improved.

In addition, since the observer can quickly understand and recognize the image, it is possible to provide a highly versatile observation apparatus that suppresses the specialized knowledge required by the observer for the operation of the observation apparatus.
(2) In addition to the effect of (1) above, when the observation magnification is changed by switching the objective lens, the observation magnification is changed because there is an image change (magnification change) of a predetermined ratio on the observation image before and after the change. Can be reliably recognized by the observer, so that the observation efficiency of the observer can be further increased.

  (3) In addition to a part of the effect of (1), the observer does not need to be aware of switching of the objective lens and can concentrate on the observation, so that the observation efficiency of the observer can be further improved.

  In addition, since the operation unit is only an instruction unit for changing the observation magnification, it is possible to further reduce the specialized knowledge required for the observer, so a more versatile observation device that anyone can observe Can provide.

(4) In addition to the effect of (3) above, it is possible to always observe in a high-resolution state, and it is possible to concentrate more on observation, so that the observation efficiency of the observer can be further increased.
In addition, the observer does not need to be aware of the resolution and can further reduce the specialized knowledge required by the observer. Therefore, a more versatile observation apparatus that anyone can observe can be provided.

  (5) In addition to the effect of (3) above, the magnification change can always be realized in the shortest time required for the change, and the observer can concentrate more on the observation, further improving the observation efficiency of the observer. Can be increased.

  In addition, the observer does not need to be aware of the time required to change the magnification, and the specialized knowledge required by the observer can be further reduced, so a more versatile observation device that anyone can observe is provided. Can be provided.

  (6) In addition to the effect of (3) above, since real-time observation can be performed, the operability of the observation apparatus is improved and the user can concentrate more on observation, thereby further increasing the observation efficiency of the observer. Can do.

  That is, according to each embodiment, good operability for realizing a desired overall magnification without being aware of the magnification of each optical element on the premise of an observation apparatus provided with optical elements capable of changing the magnification at a plurality of locations. Can be provided.

The operability of the observation apparatus for observing the sample by combining a plurality of optical systems and the work efficiency of the observer can be improved.
Needless to say, the present invention is not limited to the configuration exemplified in the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
(Appendix 1)
A plurality of first optical systems each having a fixed first magnification;
A second optical system having a variable second magnification;
A display unit for displaying an image of the sample observed at a total magnification composed of a product of the first magnification and the second magnification by a combination of the first optical system and the second optical system;
A control device for interlocking a change in the combination of the first and second optical systems and a change in the second magnification of the second optical system;
An observation apparatus comprising:
(Appendix 2)
In the observation apparatus according to attachment 1,
Furthermore, an operation unit for inputting an instruction of the overall magnification is included,
The control device may change at least one of a change in the combination of the first and second optical systems and a change in the second magnification of the second optical system in accordance with the total magnification input via the operation unit. An observation apparatus characterized by controlling the above.
(Appendix 3)
In the observation apparatus according to attachment 2,
The control device prioritizes a change in the second magnification of the second optical system over a change in the combination of the first and second optical systems, so that the total magnification input via the operation unit An observation apparatus characterized by realizing the above.
(Appendix 4)
In the observation apparatus according to attachment 2,
The control device changes the second magnification of the second optical system in conjunction with a change in the combination of the first and second optical systems, thereby obtaining the total magnification input via the operation unit. An observation apparatus characterized by realizing.
(Appendix 5)
In the observation apparatus according to attachment 2,
The operation unit includes an logarithmic scale that is displayed on an operation screen and indicates the overall magnification, and a slider that moves along the logarithmic scale.
(Appendix 6)
In the observation apparatus according to attachment 1,
And a detector for detecting a change in the combination of the first and second optical systems due to the switching of the first optical system,
The observation apparatus, wherein the control device changes the second magnification of the second optical system in conjunction with switching of the first optical system.
(Appendix 7)
In the observation apparatus according to attachment 6,
The observation apparatus, wherein the control device changes the second magnification of the second optical system in conjunction with switching of the first optical system so that the total magnification is maintained.
(Appendix 8)
In the observation apparatus according to attachment 6,
The observation apparatus, wherein the control device changes the second magnification of the second optical system in conjunction with switching of the first optical system so that the total magnification changes.
(Appendix 9)
In the observation apparatus according to attachment 6,
The observation device, wherein the control device changes the second magnification of the second optical system in conjunction with manual switching of the first optical system.
(Appendix 10)
In the observation apparatus according to attachment 6,
The control device outputs the current first and second magnifications of the first and second optical systems to the display unit in real time.
(Appendix 11)
In the observation apparatus according to any one of appendix 1 to appendix 9,
The first optical system is an objective lens, and the second optical system is a zoom lens;
A revolver for switching a plurality of the objective lenses;
A revolver drive mechanism for driving the revolver;
A zoom magnification control mechanism for controlling a zoom magnification as the second magnification of the zoom lens;
The observation apparatus characterized by further including.
(Appendix 12)
A plurality of first optical systems each having a fixed first magnification;
A second optical system having a variable second magnification;
A display unit for displaying an image of the sample observed at a total magnification composed of a product of the first magnification and the second magnification by a combination of the first optical system and the second optical system;
An operation unit for inputting the total magnification;
A control program for an observation device including:
Receiving an input of the total magnification via the operation unit;
Controlling at least one of a change in the combination of the first and second optical systems and a change in the second magnification of the second optical system according to the inputted overall magnification;
Is a control program for an observation apparatus.
(Appendix 13)
In the control program for the observation apparatus according to attachment 12,
A control program for an observation apparatus, further causing the computer to further execute a step of displaying, on the display unit, an operation screen that receives input of the total magnification as the operation unit.
(Appendix 14)
In the control program for the observation apparatus according to attachment 13,
The operation screen displays a logarithmic scale indicating the overall magnification and a slider moved along the logarithmic scale.
(Appendix 15)
A plurality of first optical systems each having a fixed first magnification;
A second optical system having a variable second magnification;
A display unit for displaying an image of the sample observed at a total magnification composed of a product of the first magnification and the second magnification by a combination of the first optical system and the second optical system;
A control program for an observation device including:
Detecting a change in the combination of the first and second optical systems due to switching of the first optical system;
Controlling the second magnification of the second optical system in conjunction with switching of the first optical system;
Is a control program for an observation apparatus.
(Appendix 16)
In the control program for the observation apparatus according to attachment 15,
The observation apparatus further causes the computer to execute a step of outputting a display area for displaying the first and second magnifications of the first and second optical systems in real time on the display unit. Control program.
(Appendix 17)
In the control program for the observation apparatus according to Supplementary Note 12 or Supplementary Note 15,
A control program for an observation apparatus, wherein the first optical system of the observation apparatus is an objective lens, and the second optical system is a zoom lens.

It is a conceptual diagram which shows an example of a structure of the observation apparatus which is one embodiment of this invention. It is a conceptual diagram which shows an example of a structure of the control system of the observation apparatus which is one embodiment of this invention. It is a conceptual diagram which shows an example of the control data used for control of the observation apparatus which is one embodiment of this invention. It is explanatory drawing which shows the structural example of the operation screen (GUI) of the observation apparatus which is one embodiment of this invention. It is a conceptual diagram which shows an example of the observation magnification range in the observation apparatus which is one embodiment of this invention. It is a flowchart which shows an example of an effect | action of the observation apparatus which is one embodiment of this invention. It is a flowchart which shows the modification of an effect | action of the observation apparatus which is one embodiment of this invention. It is explanatory drawing which shows the structural example of the operation screen (GUI) in the observation apparatus which is other embodiment of this invention. It is a flowchart which shows an example of an effect | action of the observation apparatus which is other embodiment of this invention. It is a flowchart which shows the modification of an effect | action of the observation apparatus which is other embodiment of this invention. It is a flowchart which shows the modification of an effect | action of the observation apparatus which is other embodiment of this invention. It is explanatory drawing which shows the structural example of the operation screen (GUI) in the observation apparatus which is further another embodiment of this invention. It is a flowchart which shows an example of an effect | action of the observation apparatus which is further another embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Microscope 2 Drive control part 3 Control terminal 4 Monitor 31 CPU
32 ROM
33 RAM
34a Camera I / F unit 34b Drive control unit I / F unit 34c Monitor I / F unit 35 Bus line 36 Control program 37 Control data 102 Half mirror 103 Zoom lens group 103 Zoom optical system 104 Zoom lens 105 Revolver 106 Revolver motor 106a Driver 106b Current position counter 107 Mounter 108 Objective lens 108a Low magnification objective lens 108b High magnification objective lens 109 Sample 110 Stage 111 Camera 113 Imaging lens 114 Illumination optical system 115 Fiber 116 Zoom lens motor 116a Driver 116b Current position counter 117 Revolver sensor group 117a Sensor Register 118 Microscope cable 120 Coaxial incident light source 120a Illumination light 120b Observation light 121 Camera cable 121a Camera control command signal 121 Photographic image 122 monitor cable 130 drive controller cable 130a control command 201 CPU
202 ROM
202a Control program 202b Control data 203 RAM
204a Zoom lens I / F unit 204b Revolver I / F unit 204c Control terminal I / F unit 205 Bus line 300 Operation screen 301 Camera image display unit 302 Magnification adjustment scroll unit 302a Magnification scale 302b Scroll bar 303 Magnification display unit 304 Objective lens selection Unit 305 mouse pointer 310 operation screen 311 camera image display unit 312 magnification adjustment scroll unit 312a magnification scale 312b scroll bar 313 magnification display unit 410 operation screen 411 camera image display unit 412 magnification display unit 413 magnification adjustment scroll unit 413a scale 413b scroll bar 413c Frame line 413d Frame line K1 observation device

Claims (4)

An optical system for obtaining an optical image of the sample via the first optical element and the second optical element;
First optical element switching means for discretely changing the magnification of the first optical element;
Zoom drive means for changing the magnification of the second optical element at smaller intervals than the first optical element;
Operation means for inputting the overall magnification;
The total magnification composed of a combination of the magnification of the first optical element and the magnification of the second optical element is added to the total magnification input from the operation means by interlocking the first optical element switching means and the zoom driving means. Control means for controlling to match ,
Display means for displaying an image of an optical image obtained through the first optical element and the second optical element,
The operation means includes a scroll bar as a means for continuously instructing the change of the overall magnification, wherein each value of the overall magnification is assigned on the scale and moves along the scale, and the first optical An observation magnification range realizable by the element switching means and the zoom driving means is displayed on the display means,
The control means prioritizes the change of the magnification of the second optical element over the change of the magnification of the first optical element when controlling the first optical element switching means and the zoom driving means in conjunction with each other. Then, control is performed so that a total magnification composed of a combination of the magnification of the first optical element and the magnification of the second optical element matches the total magnification input from the operation unit.
An observation apparatus characterized by that. The observation apparatus according to claim 1,
The first optical element includes a plurality of objective lenses,
The second optical element is a zoom lens;
The first optical element switching means is a revolver driving means for switching from the first objective lens to the second objective lens,
as well as,
The zoom driving means is a zoom magnification driving means for driving the zoom lens to change a zoom magnification,
An observation apparatus characterized by being. The observation apparatus according to claim 2 ,
The control means takes a control method of preferentially selecting a higher-resolution objective lens.
An observation apparatus characterized by that.   The observation apparatus according to claim 1,
  The scale which shows the said total magnification is a logarithm display, The observation apparatus characterized by the above-mentioned.