JP2002174772A - Inverted microscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inverted microscope with which effective image recorders can be efficiently combined and monitor observation without requiring eyepieces and image recording can be easily carried out. SOLUTION: The front side of a microscope body has an image output port for forming the image of an observation sample on the outside surface facing an observer downward of a body tube with which the eyepiece is fitted. Either one of at least two kinds of image pick-up units is selectively attachably and detachably constituted at the image output port.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inverted microscope for magnifying and observing an observation sample placed on a stage with an objective lens immediately below the stage, and more particularly to an inverted metal microscope for observing the structure of a metal material. It is.

[0002]

2. Description of the Related Art Conventionally, in an inverted microscope of this type, when recording the observation result of the structure of a metal material as an observation sample, a photograph is taken using a large-sized camera such as Polaroid (registered trademark) or a 35 mm camera. Therefore, a photographing device such as a large-size camera or a 35 mm camera is often provided inside the inverted microscope.

FIG. 16 shows a schematic configuration of an inverted microscope disclosed in Japanese Patent Application Laid-Open No. 63-138314.
In the drawing, 101 is a microscope main body, 102 is a stage 103
An observation sample placed thereon, 104 is a light source device such as a halogen lamp, 105 is a light emitting tube for guiding a light beam from the light source device 104, and 106 is a plurality of light sources held by a revolver 107 and arranged in an optical path alternatively. An objective lens 108, a half mirror for deflecting a light beam from the light projecting tube toward the objective lens 106, an imaging lens 109 for forming an enlarged image of the observation sample 102 together with the objective lens 106, 110 a and 11
0b is two mirrors that deflect horizontally the light rays emitted from the imaging lens 109 forms a primary image I ₁ of the observation sample 102 by these configurations.

[0004] Reference numeral 111 denotes a revolver 107 on which a plurality of objective lenses 106 are held, which is driven up and down to change the relative distance between the observation sample 102 on the stage 103 and the objective lens 106 to focus on the observation sample 102. Focusing handle for alignment. Also, the primary image I
_At the position ₁ , a scale 112 for measuring a partial size of the observation sample can be inserted.

[0005] Such a primary image I ₁ is relayed by a relay optical system 113, and reflected vertically upward by two mirrors 114 a and 114 b which can be integrally inserted into and removed from the optical path. Are selectively guided to two light beams of the transmitted light. Of these, the luminous flux reflected vertically upwards is
An image is formed as a _secondary image I ₂ , and a second relay optical system 1 is further formed.
After being relayed by 15, the light enters the eyepiece 117 attached to the lens barrel 116, reaches the eyes of the observer, and is observed. On the other hand, the transmitted light to the front is
8 and 119 are guided to the film surfaces of the large-format camera 120 and the 35-mm camera 121, respectively.

In this case, the photographing lens 118 is a photographing lens for the large-size camera 120, and the photographing lens 119 is 35.
In the photographing lens for the mm camera 121, the large-sized camera photographing lens 118, the reflection mirror 122 and the 35 mm camera photographing lens 119 are alternatively arranged in the optical path, and the large-sized photographing lens 118 is arranged on the front surface of the microscope main body 101. Plate camera 1
An image of an observation sample is selectively formed on each film surface of the 20 and 35 mm camera 121. Then, the position of the secondary image I _2, these large plate camera 12
A photo frame 123 indicating a range to be photographed by the 0 and 35 mm camera 121 can be inserted.

On the other hand, in addition to the above-described photography, there is also a case where an observation image of a sample is photographed by a television camera. A television camera 126 is attached via 125 (with a camera mount) to shoot.
Alternatively, light emitted from the imaging lens 109 is introduced into a side port 124 provided on a side surface of the microscope main body 101, and the light is transmitted through a shooting lens 125 for a television camera.
It is also possible to shoot with a television camera 126 having an image sensor such as a CD.

In recent years, with the advance of electronic image technology, it has become possible to easily handle high-definition digital images, and an optical microscope is often combined with a digital camera. When such a digital camera is combined with the above-mentioned inverted microscope, the digital camera 127 is connected to the trinocular port 116a of the lens barrel 116 via the TV camera taking lens 125.
Or the digital camera 127 is attached to the side port 124 via the same television camera taking lens 125.

In the inverted microscope configured as described above, in order to observe a target sample, first, the revolver 107 is rotated to select the low-magnification objective lens 106a, and the focusing handle 111 is rotated. Focus on the observation sample. Next, the revolver 107 is rotated to switch to the high-magnification objective lens 106b, and when the focus is out of focus, the focusing handle 111 is slightly rotated to accurately focus. When changing the observation position, the XY handle of the stage 103 is operated to move the position of the observation sample 102 and bring the desired observation position into the field of view of the objective lens 106b.

[0010] When taking a picture from this state,
The picture frame 123 indicating the range to be photographed by the large-sized camera 120 or 35mm camera 121 is inserted into the position of the secondary image I _2, after confirming the range visible on captured large-sized film or 35mm film again, perform exposure operation By doing so, a photograph is taken.

On the other hand, in such an inverted microscope, apart from recording an image using a camera or the like, a large-format camera 120 is used.
There is also a case where a ground glass (a so-called screen device) is placed at the position, and a greatly enlarged image of the sample is observed.

In this case, the observer firstly operates the large-size camera 12.
Then, a screen device (not shown) equipped with ground glass is attached.

When the image of the sample is actually observed with the screen device, the shutter is set to the manual operation mode and always opened to display the sample image on the screen because the large-size camera 120 is originally at the mounting position. can do. To display clearer images,
Some screens have a hood on the outer periphery of the screen to block external light.

In recent years, there has been a demand in the market to replace observation work by looking through the eyepiece with observation work by a monitor device such as an LCD.

In an observation operation using an eyepiece, since it is necessary to take the same posture in a long operation, the observer is inevitably tired. In addition, because observation by multiple people is not possible, a device called a discussion device that enables observation of eyepieces by multiple people is added, or a dedicated TV camera and monitor are provided only for multi-person observation There are many.

In response to a request for observation by such a monitor device, for example, a television camera 126 is connected to a trinocular port 116a of a lens barrel 116 via a photographing lens 125 for television camera (with a camera mount) as shown in FIG. Alternatively, a digital camera 127 is attached to take a picture. Alternatively, a side port 124 provided on a side surface of the microscope main body 101
Then, a television camera 126 or a digital camera 127 is attached via the same television camera photographing lens 125 for photographing. In the case of the television camera 126, the output signal from the television camera 126 is processed by the camera control unit 128 and output to the external monitor 129, so that the image of the sample can be observed on the external monitor 129. In the case of the digital camera 127, the digital camera 127
A personal computer (hereinafter, referred to as a PC) 130 captures an output signal from the PC 130, and an image of the sample can be observed on a monitor 131 connected to the PC 130.

[0017]

[SUMMARY OF THE INVENTION However, when photographing an enlarged image of the observation specimen by a television camera 126 and digital camera 127, when taken with the side port 124, the scale such 112 that is inserted in the position of the primary image I ₁ Cannot be projected.

Therefore, in order to avoid such a problem,
There is also a method in which a television camera 126 or a digital camera 127 is attached to the trinocular port 116a of the lens barrel 116 via a television camera photographing lens 125 for photographing. In this case, the television camera 126 or the digital camera 127 Therefore, when the observer directly checks the sample with the naked eye, it is necessary to shift the posture in the lateral direction, which undesirably causes fatigue of the observer.

In addition, if a photograph is not taken with a large-size camera or a 35 mm camera in the first place, the microscope body has extra functions for the observer,
A large-sized camera, a 35-mm camera, and the like are not only wasteful but also have a disadvantage of increasing costs.

Further, when observing the image of the sample with the screen device, it is necessary to remove the large-size camera, and it is very troublesome to perform an operation such as taking a picture with the large-size camera while observing on the screen. turn into. Also, if a hood is used to obtain a clearer image, it is good for observation alone, but not many people can observe it.
Also, in the case of a screen device, the device becomes a magnifying optical system for projecting to the actual size to be observed, and requires a very large space (actually, the same optical system as a large-format camera is used). There is also a problem of becoming.

When the television camera 126 is used for observation, it is necessary to combine the camera control unit 128 and the external monitor 129, which is not preferable because a large desk-mounted space other than the microscope main body 101 is required. The external monitor 129 is usually placed beside the microscope. However, when viewing the external monitor 129 while performing an operation for microscopic observation, the observer needs to move his / her line of sight each time, which is also a work efficiency. And may increase the fatigue of the observer.

Similarly, when the digital camera 127 is used, it is necessary to combine the PC 130 and the monitor 131, which is not preferable because a large desk-mounted space is required. The same applies to an increase in fatigue of the observer and a decrease in work efficiency due to the monitor 131 being placed beside the microscope main body 101.

When observation is performed on an external monitor or a monitor combined with a PC, there are many cases where the magnification of the displayed observation image cannot be grasped. In particular, when observing and recording a metal structure, photographing of a large plate or 35 mm or the like or observation using a screen is often performed, and it is often a problem that the magnification of the observed image cannot be immediately grasped on the spot.

The present invention has been made in view of the above circumstances, and enables an effective combination of an effective image recording apparatus and an inverted type that can easily perform monitor observation and image recording that does not require an eyepiece. It is intended to provide a microscope.

[0025]

The inverted microscope according to the present invention is configured as follows.

(1) An image output port for forming an image of an observation sample on the outer surface facing the viewer below the lens barrel on which the eyepiece is mounted is provided on the front side of the microscope main body. Means that any one of at least two types of imaging devices is selectively detachably attachable.

(2) In (1), the at least two types of imaging devices are a photographing device for exposing and photographing an image of the observation sample on a film surface, and an image of the observation sample captured by an image sensor. And a digital camera device capable of capturing an image of the observation sample and storing the image data as a still image in a recording medium.

(3) In (2), the image formed at the image output port is an image reflected once by a reflecting member in an optical path from an observation sample to the image output port, and The image formed on the film surface is
Since the photographing device has a reflecting member that causes an odd number of reflections in an optical path from the image output port to the film surface, an image reflected by the reflecting member an even number of times in the optical path from the observation sample to the film surface That.

(4) An imaging optical system including an objective lens disposed below an observation sample mounted on a stage of a microscope main body, and an imaging light beam obtained by the imaging optical system is transmitted to the objective lens. An optical element that forms an image of the observation sample at a position deflected to the observer side with respect to the optical axis; an imaging unit that captures an image of the observation sample; and an image recording unit that records an image signal captured by the imaging unit And a display unit mounted on a front surface of the microscope body facing the observer and displaying an image captured by the imaging unit.

(5) In (4), an optical path splitting means for splitting an optical path of an image of the observation sample formed by the imaging optical system, and a light beam from the observation sample on one of the optical paths split by the optical path splitting means. A relay optical system to guide the light to the eyepiece,
An imaging optical system set to a predetermined reduction magnification for guiding a light beam from the observation sample in the other optical path divided by the optical path dividing means to the imaging means.

(6) In (4) or (5), the display means can change a display angle.

(7) In (1) or (2), the image of the observation sample is formed at a position protruding by a predetermined distance from the image output port, and the photographing device and the television camera are provided at the image output port. And, when attaching any of the digital camera device, from among a plurality of photographing lens units having different photographing magnifications, the photographing device, the photographing lens unit corresponding to any of the television camera or the digital camera device, 3. The inverted microscope according to claim 1, wherein the microscope is detachably combined with an end portion of the image output port.

(8) In (7), a plurality of photographing lens units having different photographing magnifications respectively corresponding to the photographing device, the digital camera device, and the television camera are provided. Any one of the plurality of photographing lens units is combined according to the type of camera device or the type of the television camera.

(9) In (5) or (6), the magnification of the image of the observation sample displayed on the display means is made equal to the magnification of the image of the observation sample observed by the eyepiece. Setting a reduction magnification of the imaging optical system;

(10) In (5) or (6), when displaying the image picked up by the image pickup means on the display means, a signal processing section having an electronic zoom function for enlarging the image at an arbitrary magnification is provided. The reduction magnification (β) of the imaging optical system is set so that the range of the image captured by the imaging means is substantially equal to the range observed by the eyepiece (the diagonal length of the imaging device is K, the number of fields of the eyepiece) Let FN be β ≒ K /
FN) and then changing the magnification of the electronic zoom so that the magnification of the image of the observation sample displayed on the display means is equal to the magnification of the image of the observation sample observed by the eyepiece. Was made possible.

(11) In (10), means for storing a plurality of magnifications of the image of the observation sample displayed on the display means changed by the electronic zoom function, and an image of the observation sample image displayed on the display means. Means for setting the magnification to an arbitrary magnification.

As a result, according to the present invention, a photographing device such as a large version camera or a 35 mm camera, a television camera,
A favorite image recording device such as a digital camera can be efficiently combined according to the requirements of the microscope user.

Further, according to the present invention, the film surface of the large-size camera and the 35 mm camera can be minimized while minimizing the loss of the light amount and the deterioration of the image quality due to the reflection of the image forming light beam in the microscope main body (mirror body). Can be made into a front image (an image in the same direction as when the surface of the sample is observed as it is), so that an enlarged image of a tissue such as a metal can be faithfully recorded.

Further, according to the present invention, since the image of the sample can be observed with the monitor mounted on the front surface of the microscope main body, the observation of the microscope can be performed with less fatigue and high working efficiency. Further, since there is no need to newly install a PC or an external monitor, there is an advantage that a desktop installation space can be reduced.

Furthermore, according to the present invention, it is possible to realize both an observation optical system for observing with an eyepiece and a low-magnification imaging optical system suitable for the size of the image sensor with a simple configuration. It is possible to cope with a user who needs observation with an eyepiece.

Further, according to the present invention, the display angle can be set to an optimum visibility even for a plurality of observers having different physiques, thereby improving the visibility and reducing the fatigue of the observer. Having.

Further, according to the present invention, a photographing lens having an appropriate magnification can be easily combined according to an image recording apparatus, and the photographing lens is separated from a photographing apparatus or a digital camera apparatus into a mirror body. Since it is mounted, even a large-sized photographing device or digital camera device can be stably mounted on the mirror body with higher rigidity, and as a result, good image recording without image blurring can be realized. .

Further, according to the present invention, it is possible to record images at various photographing magnifications in accordance with a user's request, regardless of the type of image recording device such as a photographing device, a digital camera device, and a television camera. Become.

Further, according to the present invention, the observer can always observe the observation magnification with the eyepiece lens equal to the magnification of the image displayed on the display means, and can perform the observation work without feeling uncomfortable.

Further, according to the present invention, the range of the image picked up by the image pickup means can be taken into the maximum range that is substantially equal to the range of observation by the eyepiece, and the electronic range can be selected according to the observer's preference. By enlarging and displaying the image on the display means using the zoom, it is possible to observe at the same magnification as the eyepiece.

Further, according to the present invention, it is possible to easily observe at any electronic zoom magnification stored using the display means.

[0047]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a diagram showing a schematic configuration of an inverted microscope to which the first embodiment of the present invention is applied. FIG. 2 is a configuration diagram in a case where a photographing apparatus capable of mounting a large-size camera and a 35 mm camera is combined with the inverted microscope of FIG. FIG. 3 is a configuration diagram in a case where a digital camera device capable of observing a moving image with a display device such as an LCD built in the inverted microscope of FIG. 1 is combined. FIG.
FIG. 2 is a configuration diagram when a television camera is combined with the inverted microscope in FIG. 1.

In FIG. 1, a stage 3 is disposed above a microscope main body (hereinafter, referred to as a “mirror body”) 1. The observation sample 2 is placed on the stage 3. The luminous flux from the light source device 4 such as a halogen lamp is
The light is guided to the mirror body 1 via the mirror 1 and is reflected by the half mirror 8 to irradiate the observation sample 2 via the objective lens 6 (objective lenses 6a and 6b). In this case, the objective lens 6
A plurality of revolvers 7 are held and alternatively arranged in the optical path. Light from the observation sample 2 that has passed through the objective lens 6, here reflected light, passes through the half mirror 8 and forms an imaging lens 9.
And is deflected in the horizontal direction by the reflection mirror 10 to form a primary image I ₁ of the observation sample 2.

At the position of the primary image I ₁ , scales 12 for measuring the partial size of the observation sample 2 are used.
Can be inserted.

Further, the primary image I ₁ is transmitted to the zoom optical system 1
3, when the mirror 14 is inserted into the optical path by the mirror 14 that can be inserted into and removed from the optical path, the reflected light goes vertically upward, and when the mirror 14 is retracted from the optical path, it goes forward. It is selectively guided to passing light and two light beams. The reflected light reflected vertically upward forms an image as a secondary image I2, and after being relayed by the relay optical system 15, enters the eyepiece 17 attached to the lens barrel 16,
It reaches the observer's eyes and is observed by the observer. On the other hand, the light passing forward forms a secondary image I2 'at a position protruding by a predetermined distance from a front port 18 provided below the front surface of the mirror body 1. An image recording device described later is detachable from the front port 18.

FIG. 1 further shows a split prism 51 for splitting a light beam in a horizontal direction (vertical direction on the paper) immediately below the imaging lens 9 and a light beam split by the split prism 51 is photographed by a television camera or the like. Port 2 and the revolver 7 holding a plurality of objective lenses 6 are driven up and down to change the relative distance between the observation sample 2 and the objective lens 6 on the stage 3 so that the observation sample 2 A focusing handle 11 for focusing is shown.

Next, a configuration in a case where the inverted microscope described in FIG. 1 is combined with a photographing device to which a large-size camera and a 35 mm camera can be mounted will be described with reference to FIG. FIG.
In FIG. 7, the same parts as those in FIG.

In this case, the mirror 1 and the stage 3, the light source device 4, the light emitting tube 5, the objective lens 6, the lens barrel 16, the eyepiece 17 and the like attached to the mirror 1 are exactly the same as those in FIG. Therefore, the description is omitted.

In the configuration shown in FIG. 2, a photographing device 19 having a shape covering the entire front surface of the mirror body 1 is attached to the front port 18. On the front of the photographing device 19,
4 inches x 5 inches or 3.1 / 4 inches x
A large-size camera 20 capable of taking large-size photographs of dimensions such as 4 inch is mounted on a side of the photographing device 19, but a 35-mm camera (not shown) capable of taking a 35-mm photograph (not shown) is attached. ing.

Further, two types of photographing lenses 22 and 23 are provided inside the photographing device 19 so as to be insertable into and removable from the optical path from the front port 18. The photographing lens 22 is a photographing lens for the large-format camera 20, and the photographing lens 23
Is a taking lens for a 35 mm camera. The large-format camera taking lens 22 and the reflecting mirror 24, and the 35 mm camera taking lens 23 and the reflecting mirror 25 are integrally formed. Photographing lens 22 and reflection mirror 24
And the taking lens 23 and the reflecting mirror 25 are alternatively arranged in the optical path, so that the film surfaces of the large-format camera 20 and the 35 mm camera 21 arranged on the front and side surfaces of the photographing device 19 respectively. An image of the observation sample is selectively formed. The light beam reflected by the reflecting mirror 24 via the photographing lens 22 is further reflected by two reflecting mirrors 2.
After being reflected by 6, 27, it reaches the large-size camera 20. Therefore, the large-size camera 2 is installed in the photographing device 19.
The light beam going to 0 is reflected three times in total and forms an image. The light beam reflected by the reflection mirror 25 via the photographing lens 23 reaches the 35 mm camera 21 as it is. Therefore, the light beam traveling toward the 35 mm camera 21 in the photographing device 19 is reflected once and forms an image.

It is to be noted that a photo frame 28 indicating a range to be photographed by the large-size camera 20 and the 35 mm camera 21 can be inserted into the position of the secondary image I2.

Next, a description will be given of an operation of actually taking a photograph with an inverted microscope in which such a photographing device 19 is combined.

First, the mirror 14 in the mirror body 1 is inserted into the optical path so that the observation sample can be observed with the eyepiece. Thereafter, the revolver 7 is rotated so that the low-magnification objective lens 6a
Is selected, and the focusing handle 11 is rotated to focus on the observation sample 2. Next, the revolver 7 is rotated to switch to the high-magnification objective lens 6b, and when the focus is out of focus, the focusing handle 11 is slightly rotated to accurately focus. When changing the observation position, the XY handle (not shown) of the stage 3 is operated to move the position of the observation sample 2 and move the desired observation position into the field of view of the objective lens 6b.

Next, a photo frame 28 indicating a range to be photographed by the large-size camera 20 or the 35 mm camera 21 is set to two.
Insert at the position of the next image I2, and use a large film or 35m
Check the area that appears on the m-film. In the case where the reflected area is good, the mirror 14 in the mirror body 1 is retracted from the optical path, the passing light is supplied to the photographing device 19, and the photographing operation is performed by the photographing device 19 so that the photographing is performed. Complete.

Next, a configuration in which the inverted microscope described in FIG. 1 is combined with a digital camera device capable of observing a moving image on a display device such as a built-in LCD will be described with reference to FIG. 3, the same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description will be omitted.

In this case, the mirror 1 and the stage 3, the light source device 4, the light emitting tube 5, the objective lens 6, the lens barrel 16, the eyepiece 17 and the like attached to the mirror 1 are exactly the same as those in FIG. Therefore, the description is omitted.

In the configuration shown in FIG. 3, the digital camera device 2 having a shape covering the entire front surface of the mirror body 1 is connected to the front port 18.
9 is attached. This digital camera device 29
A display device 3 such as an LCD as a display means
0 is buried. An operation unit 31 for sending various instructions to the digital camera device 29 itself is provided below the front surface.

Further, inside the digital camera device 29, a photographing lens 32 for reducing and forming an image of a light beam entering from the front port 18 of the mirror body 1, and a light image formed by the photographing lens 32 are converted into a video signal. CCD for output as
33 are built in. CCD connected to CCD33
The signal processing unit 34 that processes the output from the image processing unit 33 includes an internal memory as a recording medium, an image recording unit 35 to which an MO (magneto-optical disk), a smart media, or the like can be attached, and the above-described L
It is connected to a display device 30 such as a CD and an operation unit 31, respectively.

Next, such a digital camera device 29
The operation when actually observing and recording in an inverted microscope combining the above will be described.

First, the mirror 14 in the mirror body 1 is retracted from the optical path, and the passing light is supplied to the digital camera device 29. By operating the operation unit 31, a preview mode (moving image observation mode) is set, and an image is displayed on the display device 30 such as an LCD. By rotating the revolver 7, the low-magnification objective lens 6a
Is selected, and the focusing handle 11 is rotated to focus on the image displayed on the display device 30 such as an LCD. Next, the revolver 7 is rotated to switch to the high-magnification objective lens 6b, and when the focus is out of focus, the focusing handle 11 is slightly rotated to accurately focus. When changing the observation position, the XY handle of the stage 3 (not shown)
Is operated to move the position of the observation sample 2 in the X and Y directions to move the desired observation position into the field of view of the objective lens 6b.

Next, when an image is to be recorded on a recording medium such as an MO or a smart media, the mode is switched from the preview mode to the recording mode by operating the operation unit 31. As a result, an image recording instruction is issued to the signal processing unit 34 by the shooting operation of the operation unit 31, and the signal processing unit 34
The image data accumulated in the step is recorded by the image recording unit 35,
Complete the operation. When the image recording operation is completed, the mode is automatically switched to the preview mode, and the current image is displayed in real time on the display device 30 such as an LCD.

Next, FIG. 4 shows a configuration in which a television camera and a monitor are combined with the inverted microscope described in FIG.
This will be described with reference to FIG. 4, the same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description will be omitted.

In this case, the mirror 1 and the stage 3, the light source device 4, the light emitting tube 5, the objective lens 6, the lens barrel 16, the eyepiece 17 and the like attached to the mirror 1 are exactly the same as those in FIG. Therefore, the description is omitted.

In the configuration shown in FIG. 4, a television adapter 36 having a built-in photographic lens is attached to the front port 18. Then, a television camera 37 having a built-in photographing element such as a CCD is attached to the television adapter 36. Output signals from the television camera 37 are processed by the camera control unit 38 and output to the external monitor 39. External monitor 39
Can be recorded by a known video printer (not shown) or the like, and the description of the operation is omitted here.

As described above, in the inverted microscope according to the first embodiment, the microscope main body does not have an image recording device built in, and a predetermined port is provided from the front port 18 provided below the front surface of the mirror body 1. Observation sample 2
Is formed. And the front port 18
A photographing device 19 to which a large-size camera and a 35 mm camera can be attached; a digital camera device 29 capable of observing moving images on a display device such as a built-in LCD;
These three image recording apparatuses are selectively detachably attachable. Therefore, it is possible to construct a system that meets the wishes of the observer. Further, since a dedicated photographing lens is provided in each image recording apparatus, it is possible to realize an optimum magnification for each medium such as a large plate film, a 35 mm film, a CCD, and the like. Here, the optimum magnification is defined as, for example, a magnification that realizes a wide photographing (photographing) range substantially equal to the observation field of view by the eyepiece.

Further, a secondary image of the observation sample was input to the image recording apparatus, and a zoom optical system was provided between the primary image and the secondary image of the observation sample. Therefore, there is an advantage that a scale for measuring a partial size of an observation sample can be imprinted on all the image recording devices attached to the front port. Further, there is an advantage that an image scaled by the zoom optical system can be projected.

Further, the light from the observation sample is reflected once by the reflection mirror 10 in the mirror body 1,
Within 9, the image is reflected three times to the large-size camera, and once reflected by the 35 mm camera, so that an image is reflected even number of times in total. Therefore, a photograph of a face image can be taken. In addition, the mirror 1 until it reaches the eyepiece 17
Since the number of reflections in the interior is configured to be as small as possible,
Good observation without deteriorating the brightness and image quality of the observed image is possible. That is, the image formed on the film surface of the large-format camera and the 35 mm camera is displayed as an image while minimizing the loss of the light amount and the deterioration of the image quality due to the reflection of the image forming light beam in the microscope body (mirror body). (An image in the same direction as when the surface of the sample is observed as it is), it is possible to faithfully record an enlarged image of a tissue such as a metal.

When these image recording devices are mounted on the front port 18 and another TV camera or digital camera is to be further mounted, the side port 5
2 can be mounted via the TV adapter 36, so that the expandability of the system is high.

Note that the L built in the digital camera device
Other display devices such as CDs are plasma displays and CRs.
T may be used, and the television camera does not have a CDD but may have another element such as a CMD element.

(Second Embodiment) FIG. 5 is a diagram showing a schematic configuration of an inverted microscope according to a second embodiment of the present invention.

In FIG. 5, a stage 203 is disposed above a microscope main body (hereinafter, referred to as a mirror) 201, and an observation sample 202 is mounted on the stage 203. A light beam from the light source device 204 such as a halogen lamp is guided to the mirror 201 via the light emitting tube 205. The light beam is reflected by the half mirror 208 and is reflected by the objective lens 2.
The observation sample 202 is radiated through the reference numeral 06. in this case,
A plurality of objective lenses 206 are held by the revolver 207 and are alternatively arranged in the optical path. Then, the observation sample 202
The reflected light transmitted through the half mirror 208 is transmitted through the half mirror 208, and together with the objective lens 206 by the imaging lens 209, the observation sample 2.
02 is formed. Further, the reflected light is reflected by the mirror 2
10, the image I of the observation sample 202 is formed by reducing the image of the observation sample 202 by the imaging lens 209 by the taking lens 250.

In this case, a display device 230 such as an LCD is embedded as a display means on the front surface of the mirror 201.
An operation unit 231 for sending various instructions is provided below the front surface. The imaging lens 25 is located at the position of the image I of the observation sample.
C for outputting the light focused by 0 as a video signal
A CD 233 is built-in. The CCD 233 has a CC
A signal processing unit 234 that processes the output from D233 is connected. The signal processing unit 234 includes an image recording unit 235 to which a built-in memory or an MO (magneto-optical disk), a smart media, or the like can be attached as an image recording unit, or the above-described LCD
And the operation unit 231 are connected.

Here, FIG. 5 shows a split prism 251 that splits a light beam in the horizontal direction (vertical direction on the paper) immediately below the imaging lens 209, and a light beam split by the split prism 251 is photographed by a television camera or the like. Side port 252
And a revolver 2 holding a plurality of objective lenses 206
07 is driven up and down, and the observation sample 2 on the stage 203 is
A focusing handle 211 for focusing on the observation sample 202 by changing the relative distance between the objective lens 206 and the objective lens 206 is shown.

The operation of the inverted microscope configured as described above for observation and recording will be described below.

First, an image is displayed on the display device 230 such as an LCD by setting the preview mode (moving image observation mode) by operating the operation unit 231. The revolver 207 is rotated to select the low-magnification objective lens 206a, and the focusing handle 211 is rotated to focus on the image displayed on the display device 230 such as an LCD. Next, Revolver 2
07 is switched to the high-magnification objective lens 206b, and when the focus is out of focus, the focusing handle 211 is slightly rotated to accurately focus. When changing the observation position, the XY handle of the stage 203 (not shown)
Is operated to move the position of the observation sample 202 in the X and Y directions, and move the desired observation position into the field of view of the objective lens 206b.

Next, when an image is to be recorded on a recording medium such as an MO or a smart media, the mode is switched from the preview mode to the recording mode by operating the operation unit 231. Then, the signal processing unit 234 is operated by a shooting operation of the operation unit 231.
Is given, and the image data stored in the CCD 233 is recorded in the image recording unit 235, and the operation is completed. When the image recording operation is completed, the mode is automatically switched to the preview mode. Display device 2 such as LCD
30 displays the current image in real time.

Therefore, according to the present embodiment, an observation optical system for observation with an eyepiece is not required.
An inverted microscope capable of observation and image recording on a monitor such as a CD can be realized with a simple configuration.

(Third Embodiment) In FIG. 6, a stage 303 is disposed above a microscope main body (hereinafter, referred to as a mirror) 301. An observation sample 302 is mounted on a stage 303. A light beam from the light source device 304 such as a halogen lamp is guided to the mirror body 301 via the light emitting tube 305. Thereafter, the luminous flux passes through the half mirror 30.
8 reflected through the objective lens 306
02. In this case, a plurality of objective lenses 306 are held by the revolver 307 and are alternatively arranged in the optical path. Then, the reflected light from the observation sample 302 transmits through the half mirror 308, and an enlarged image of the observation sample 302 is formed together with the objective lens 306 by the imaging lens 309. Further, the reflected light is deflected in the horizontal direction by the mirror 310 to form a primary image I1 of the observation sample 302.

At the position of the primary image I 1, scales 312 for measuring a partial size of the observation sample 302 can be inserted.

Further, the primary image I 1 is transmitted to the zoom optical system 3.
When the mirror 314 is inserted into the optical path by the mirror 314 of the optical path dividing means that can be inserted into and removed from the optical path via the optical path 13, the light reflected vertically upward and the mirror 314 is retracted from the optical path. In this case, the light is selectively guided to two luminous fluxes of the light passing forward. The light flux reflected vertically upward forms an image as a secondary image I2, and furthermore, a relay optical system 31.
After being relayed by 5, the light enters the eyepiece 317 attached to the lens barrel 316, reaches the observer's eyes, and is observed. On the other hand, the light passing forward is reduced by the photographing lens 332 constituting the photographing optical system and forms an image on the CCD 333.

FIG. 6 shows a split prism for splitting a light beam in a horizontal direction (vertical direction on the paper) immediately below the imaging lens 309, and a light source for shooting the light beam split by the split prism 351 with a television camera or the like. The side port 352 and the revolver 307 holding a plurality of objective lenses 306 are driven up and down to change the relative distance between the observation sample 302 and the objective lens 306 on the stage 303 to focus on the observation sample 302. Focusing handle 3
11 is shown.

The reduction magnification β of the photographing lens 332 described above.
Is set as follows: In this case, a range equal to the range of the observation sample observed by the eyepiece 317 (the size on the image plane is called the number of fields) can be photographed. Assuming that the number of fields of view is FN and the diagonal length K of the image sensor, β
≒ K / FN is set.

On the front surface of the mirror body 301, a display device 330 such as an LCD is embedded. An operation unit 331 for sending various instructions is provided below the front surface. In addition, CCD3
A signal processing unit 334 connected to the CCD 33 for processing the output from the CCD 333 has a built-in memory or an MO (magneto-optical disk).
And an image recording unit 335 to which a media or a smart media can be mounted, a display device 330 such as an LCD described above, and an operation unit 331.

The operation of observation and recording in the inverted microscope thus configured is exactly the same as that of the inverted microscope described with reference to FIG. 5, and a description thereof will be omitted.

Therefore, with such a configuration, the LCD
Along with the observation with the monitor, the same range as the display range on the monitor can be observed with the eyepiece. Therefore, it is possible to provide an inverted microscope that is optimal for an observer who needs not only observation with a monitor but also observation with an eyepiece.

In the second and third embodiments described above, the orientation of the display surfaces of the display devices 230 and 301 such as LCDs mounted on the front surfaces of the mirrors 201 and 301 are
If it can be changed according to the physique and preference of the observer facing the mirrors 201 and 301, an observation posture with less fatigue can be taken.

FIGS. 7A and 7B are diagrams showing an example in which a display device 230 such as an LCD used in the second embodiment is configured to be vertically swingable. FIG. 7 is an enlarged cross-sectional view of only the portion of the front surface of the mirror body 201 to which the display device 230 such as an LCD is attached. In FIG. 7, a concave portion 201a provided on the front surface of the mirror body 201 has:
The support shaft 402 is provided in a horizontal direction (a direction perpendicular to the paper surface). The upper portion of a holding frame 401 holding a display device 230 such as an LCD is fitted to the support shaft 402,
The display device 230 is supported so as to be able to swing vertically. The fitting between the holding frame 401 and the support shaft 402 is set so as to generate an appropriate frictional force that balances the downward force due to the mass of the display device 230 such as an LCD including the holding frame 401. Therefore, the observer can freely adjust the vertical angle of the display surface of the display device 230 such as an LCD with the holding frame 401.

FIGS. 8A and 8B are diagrams showing an example in which a display device 230 such as an LCD is configured to be able to swing vertically and horizontally. 8 (a) and 8 (b)
FIG. 4 is an enlarged cross-sectional view of only a portion of the front surface of the mirror body 201 to which a display device 230 such as an LCD is attached. FIG.
, A concave portion 201a provided on the front surface of the mirror body 201
Then, a spherical concave portion 201b is further formed. LCD
Are held in the holding frame 403.
Further, a spherical component 405 fixed to the back surface of the holding frame 403 via a shaft 404 is fitted into the spherical concave portion 201b. The fitting between the spherical component 405 and the concave portion 201b is set so as to generate an appropriate frictional force that balances the downward force due to the mass of the display device 230 such as an LCD including the holding frame 403 as in FIG. ing. Therefore,
The observer holds the holding frame 403 and displays the display device 2 such as an LCD.
The vertical angle of the display surface of the display 30 can be freely adjusted.

Although not shown in FIGS. 7 and 8,
The cable from the signal processing unit 234 between the display device 230 such as an LCD and the mirror 201 is set to an appropriate length such that a load is not applied by the angle adjustment of the display surface as described above.

In the second embodiment, the size of the image displayed on the display device 230 such as an LCD can be changed by operating the operation unit 231, that is, so-called electronic zoom can be performed. Thus, the observer can freely change the observation magnification by operating the operation unit 231 on the front surface of the mirror body 201 without performing the switching operation of the objective lens 206 by rotating the revolver 207.

In this manner, the angle of the display surface of a monitor such as an LCD can be freely changed, so that an inverted microscope which can take an observation posture with less fatigue according to the physique and preference of the observer is provided. it can.

In the above description, the display device 230 such as an LCD used in the second embodiment has been described, but the display device 330 such as an LCD used in the third embodiment is described.
As a matter of course, the configuration shown in FIGS. 7 and 8 can be applied to

FIGS. 9 to 12 show the configuration of an inverted microscope according to a fourth embodiment of the present invention.

In the fourth embodiment, the entire structure of the inverted microscope is the same as that of the first embodiment, but a photographing apparatus to which a large-size camera and a 35 mm camera can be mounted, a display such as a built-in LCD, etc. A method of mounting a photographic lens combined when selectively mounting three image recording devices, a digital camera device and a television camera, capable of observing moving images with the device, and mounting the photographic device and the digital camera device on a mirror body The difference is that the method is detailed.

9 to 12, the first of FIGS.
The same components as those of the embodiment are denoted by the same reference numerals and described. FIG. 9 shows a mirror 1 and a concave fitting portion 1 provided on the front surface of the mirror 1 for positioning the photographing device 19.
and a guide member 501 fixed to the lower end of the concave fitting portion 1a for positioning the photographing device 19 or the digital camera device 29 in cooperation with the concave fitting portion 1a.
And a mount member 502 fixed to the front surface of the mirror body 1 and holding a photographic lens unit described later. (Here, in a narrow sense, the front port 18 in FIG.
In the broad sense, the front port 18 in FIG. 1 = the mounting member 502 + the concave fitting portion 1a + the guide member 501, that is, the mounting member 502 can be said to be one component of the front port 18. 9 shows a fixing screw 503 for fixing the photographing device 19 fitted in the concave fitting portion 1a, and the mounting member 502.
A fixing screw 504 for fixing a photographing lens, which will be described later, which is fitted to the lens body, and a mirror frame 500 which holds the mirror 14 and is held at a predetermined position of the mirror body 1 so as to be insertable into and removable from the optical path are shown. I have.

FIG. 10 shows a photographing device capable of mounting a large-size camera and a 35 mm camera, a digital camera device capable of observing a moving image with a display device such as a built-in LCD, and a photographing device corresponding to three image recording devices. The lens is shown.

FIG. 10A shows a photographing lens unit corresponding to the photographing device 19. FIG. 10B is a diagram illustrating a photographing lens unit corresponding to the digital camera device 29. FIG. 10C is a diagram illustrating a photographing lens unit corresponding to the television camera 37. FIG.
(D) is a figure which shows the imaging lens unit corresponding to a television camera different from the television camera 37.

A photographing lens unit corresponding to the photographing device 19 in FIG. 10A and a photographing lens unit corresponding to the digital camera device 29 in FIG. Is provided. Then, the screws on the outer periphery of the lens frames 505 and 506 are screwed into the screw portions 502 a of the mount member 502, so that the lens frames 505 and 506 are mounted on the mount member 5.
02 is attached.

A photographing lens unit corresponding to the television camera 37 in FIG. 10C and a photographing lens unit corresponding to a television camera different from 37 in FIG. 10D are both provided on the outer periphery of each of the lens frames 507 and 508. Is provided with a V-groove. Then, these lens frames 507 and 508 are inserted into the fitting portion 502 b of the mount member 502, and are fixed to the mount member 502 by tightening the fixing screws 504. Also, at one end of the lens frames 507 and 508,
Camera mounting screw portions 507a and 508a such as a C mount for fixing the television camera are provided.

Lens frames 505, 506, 507, 508
Inside, lens groups 509 and 51 having different magnifications respectively.
0, 511 and 512 are fixed. Lens group 509
When a photograph is taken by combining the photographing device 19, the magnifying optical system is, for example, about 3 times so that the optimum magnifying power is finally obtained on the film surface. The lens groups 510, 511, and 512 have an appropriate reduction magnification depending on the size of the imaging device such as the CCD of the digital camera device 29 or the television camera 37 to be combined. The third mentioned above
If the magnification β of the lens group of the photographing lens is set as β ≒ K / FN, where FN is the field number of the eyepiece and K is the diagonal length of the photographing element, as in the embodiment of FIG. It is possible to take an image of a range that is almost the same as that observed with the camera.

FIG. 11 is a view showing the shape of the mounting portion of the photographing device 19 or the digital camera device 29. FIG. 11 shows a main body 513 of the photographing device 19 or the digital camera device 29, a mounting member 514 fixed to the main body 513, and a dustproof glass 515 fixed to an opening of the main body 513. I have. A lower end portion of the mounting member 514 has a slope portion 514 corresponding to the guide member 501.
a. At one of the upper ends of the mounting member 514,
When the fixing screw 503 is tightened, the fixing screw 503 comes into contact with the slanted surface portion 514 so that a force is applied so as to press the mounting member 514 toward the mirror body 1.
b is formed. The width of the mounting member 514 is
It is equal to the width dimension of the concave fitting portion 1a of the mirror body 1.

FIG. 12A is a view showing a state in which the photographing lens and the photographing device 19 shown in FIG. FIG. 12B shows the mirror body 1
11C is a diagram showing a state in which the photographing lens and the television camera 37 of FIG.

In FIG. 12A, the photographing device 19
Is fixed to the mirror body 1 as follows. A lens frame 505 of the photographing lens unit shown in FIG. 10A is screwed and fixed to a mount member 502 fixed to the front surface of the mirror body 1. Thereafter, the width direction of the mounting member 514 is fitted into the concave fitting portion 1a of the mirror body 1 so that the slope portion 514a at the lower end of the mounting member 514 of the photographing device 19 is placed on the guide member 501. Then, the fixing screw 503 is tightened.

As described above, in the present embodiment, when mounting a large device such as the photographing device 19 or the digital camera device 29, the device is mounted on the mounting member 502.
Not directly fixed to. Mounting lens 50
2, the photographing device 19 and the digital camera device 29 are attached to the front surface of the mirror body 1.
Therefore, a highly accurate and stable combination becomes possible.

In FIG. 12B, the television camera 37
Is fixed to the mirror body 1 as follows. The camera mounting screw portion 507a of the lens frame 507 of the photographing lens unit in FIG. 10C is screwed and fixed to the mount portion 37a of the television camera 37. Next, the lens frame 507 of the photographing lens unit shown in FIG. 10C to which the television camera 37 is attached is inserted into the fitting portion 502b of the mount member 502.
Then, after adjusting the vertical and horizontal directions of the television camera 37, the fixing screw 504 is tightened. As a result, FIG.
The television camera 37 via the photographing lens unit (c)
Is fixed to the mirror 1.

When the photographing lens unit shown in FIG. 10D is attached, it can be attached similarly to the photographing lens unit shown in FIG. 10C.

It should be noted that the television camera 3 is attached to the photographing lens corresponding to the photographing device 19 and the digital camera device 29.
As described above, the method of fixing the photographing lens corresponding to No. 7 to the mount member 502 is changed.
In order to be able to adjust the vertical and horizontal directions.

As described above, in the present embodiment, when the photographing device 19 and the digital camera device 29 and the television camera 37 are attached to the front port, the photographing lens is attached by a different method.
A dedicated structure for attaching the digital camera 9 and the digital camera device 29 to the mirror body is prepared. Therefore, even a large-sized photographing device or digital camera device can be stably attached to the mirror body with higher rigidity.

In the case of the photographing device 19 and the digital camera device 29, the photographing lens is separate from the photographing device 19 and the digital camera device 29 and is attached to the mirror 1. Therefore, it is possible to record images at various photographing magnifications in response to the request of the observer. Specifically, in the case of this embodiment, FIGS. 10A and 10B correspond to the photographing device 19 and the digital camera device 29.
The photographing lens shown in FIG. On the other hand, it is of course possible to provide, for example, two or more types of photographing lenses having different magnifications in correspondence with the cases of the photographing device 19 and the digital camera device 29, respectively.

Next, an inverted microscope according to a fifth embodiment of the present invention will be described.

The fifth embodiment has the same configuration as that of the third embodiment described with reference to FIG. 6, and illustration and description thereof are omitted. The fifth embodiment is characterized in setting the magnification of the photographing lens 332 when photographing with the CCD 333.
That is, in the present embodiment, the display device 330 such as an LCD is used.
The magnification of the image displayed by is configured to be equal to the observation magnification by the eyepiece 317.

The magnification of the taking lens 332 is β ', the CCD 3
When the diagonal length of 33 is K, the diagonal length of the display device 330 such as an LCD is L, and the magnification of the eyepiece 317 is M, M = β ′ · L / K (β ′ = M · K / L) By selecting each parameter so as to satisfy the following relationship, the observer always obtains the observation magnification with the eyepiece 317 and the LC.
Observation with the same magnification as that of the image displayed on the display device 330 such as D can be performed, and the observation operation can be performed without any discomfort.

FIG. 13 shows a typical CCD 333 when the magnification of the eyepiece 317 is the standard 10 ×.
A table summarizing the magnification of the photographing lens 332 for observing at the same magnification of the eyepiece 317 on the display device 330 such as an LCD when the size of the display device 330 such as an LCD is combined with the size of the display device 330 such as an LCD.

Next, an inverted microscope according to a sixth embodiment of the present invention will be described.

Since the sixth embodiment has the same configuration as the third embodiment described with reference to FIG. 6, illustration and description are omitted.

In the present embodiment, the taking lens 33
The magnification β of 2 is set so as to satisfy β 設定 K / FN, where FN is the field number of the eyepiece 317 and K is the diagonal length of the imaging element 333 such as a CCD, as in the third embodiment. ing.

As shown in FIG. 15 (a front view of the operation unit), the operation unit 331 has a display device 330 such as an LCD.
Of electronic zoom magnification to change display magnification
And switch 60 for inputting DOWN, respectively.
1, 602 and a display unit 603 for displaying the electronic zoom magnification
MEMORY switches 604a to 604c for storing the set current electronic zoom magnification, and EXPOS for recording the displayed image in the image recording unit 336.
An E switch 605 and the like are arranged.

The signal processing section 334 for processing the output from the CCD 333 has a memory for temporarily storing the image data from the CCD 333. Signal processing unit 334
When an electronic zoom magnification is input and set from the operation unit 331, a part is cut out from the image data temporarily stored in the memory in accordance with the electronic zoom magnification, and the cut out range is displayed on a display device 330 such as an LCD. To be displayed. If the electronic zoom magnification is 0.5, the vertical and horizontal portions near the center are respectively cut out from the image data temporarily stored in the memory in a range of 1/2 of the original data, and the data is reduced to L.
The information is displayed on a display device 330 such as a CD. Thus, an image with an electronic zoom magnification of 2 is obtained.

The electronic zoom magnification can be stored by, for example, holding down any of the MEMORY switches 604a to 604c for a predetermined time or more while the electronic zoom magnification to be stored is set. By pressing any of the MEMORY switches 604a to 604c for a short time,
The stored electronic zoom magnification can be called and displayed on the display device 330 such as an LCD at the electronic zoom magnification. Since the process of cutting out (thinning out) a part from the image data temporarily stored in the memory is known,
Here, it is omitted.

In this embodiment, when a 2/3 inch size CCD is employed as the CCD 333 as shown in FIG. 14, the photographing lens 332 is used to obtain the same photographing area as the observation range with the field of view FN = 26.5. As the magnification β of
Set to 0.42 times. A display device 330 such as an LCD
Assume that a 6-inch monitor is incorporated.

Next, when the electronic zoom magnification is set to 1.7 times by the switch 601 for instructing the electronic zoom magnification UP, the display magnification on the display device 330 such as an LCD is 0.42 × 1.7 °. 0.72, which is exactly equal to the magnification of the photographing lens for obtaining the same display magnification (10 ×) with the eyepiece 317 in FIG.

Therefore, depending on the preference of the observer, the CCD
When it is desired to make the range of the image photographed by 333 almost equal to the observation range by the eyepiece 317, the image data photographed by the CCD 333 by the photographing lens is displayed on the display device 330 such as an LCD without using the electronic zoom. What is necessary is just to display a full screen as it is. On the other hand, a display device 33 such as an LCD
If you want to observe at the same magnification as the eyepiece 317 at 0,
What is necessary is just to enlarge and display using electronic zoom. Also, since a plurality of (up to three in this case) magnifications of the electronic zoom can be stored, it is possible to observe at an arbitrary magnification on the display device 330 such as an LCD. Although not shown, when an image temporarily stored in the signal processing unit 334 is printed by a printer so that a printer can be directly connected to the inverted microscope, or an image stored in the image recording unit 335 is printed. When printing with an external printer via a recording medium such as a smart media, the electronic zoom magnification can be set empirically by using a function capable of storing a plurality of the electronic zoom magnifications according to the printer and output paper to be used. By doing so, it is possible to easily realize, for example, matching the magnification of the printed image with the observation magnification (here, 10 ×) with the eyepiece 317 on the output paper of the external printer.

As described above, the inverted microscope according to the present invention is configured as follows.

(1) An image output port for forming an image of an observation sample on the outer surface facing the observer below the lens barrel on which the eyepiece is mounted is provided on the front side of the microscope main body. Is characterized in that one of at least two types of photographing devices is selectively detachably attached. Further, the at least two types of photographing devices are a photographing device for exposing and photographing the image of the observation sample on a film surface, a television camera for photographing the image of the observation sample with a photographing element and outputting the image data, and the observation sample. And a digital camera device capable of photographing the image and storing the image data as a still image in a recording medium. It can be efficiently combined with a favorite image recording device such as a photographing device such as a large plate camera or a 35 mm camera, a television camera, a digital camera, or the like according to the requirements of a microscope observer.

(2) In (1), the image formed at the image output port is an image reflected once by a reflecting member in an optical path from an observation sample to the image output port, and The image formed on the film surface is
Since the photographing device has a reflecting member that causes an odd number of reflections in an optical path from the image output port to the film surface, an image reflected by the reflecting member an even number of times in the optical path from the observation sample to the film surface It is characterized by being. The image formed on the film surface of the large-format camera and the 35-mm camera is displayed as an image (sample) while minimizing the loss of light amount and the deterioration of image quality due to the reflection of the image forming light beam in the microscope body (mirror body). (An image in the same direction as when the surface is observed as it is), it is possible to faithfully record an enlarged image of a tissue such as a metal.

(3) An imaging optical system including an objective lens disposed below the observation sample mounted on the stage of the microscope main body, and an image forming light beam obtained by the imaging optical system is transmitted to the objective lens. An optical element that forms an image of the observation sample at a position deflected to the observer side with respect to the optical axis; an imaging unit that captures an image of the observation sample; and an image recording unit that records an image signal captured by the imaging unit And a display unit mounted on a front surface of the microscope body facing the observer and displaying an image captured by the imaging unit. By providing a display device such as an LCD for displaying an image captured by the image sensor on the front surface of the microscope main body, monitor observation with less fatigue can be realized and image recording can be easily performed. In addition, since an observation optical system for observation with an eyepiece is not required, an inverted microscope capable of observation and image recording with a monitor such as an LCD can be realized with a simple configuration.

(4) In (3), an optical path splitting means for splitting an image forming light beam obtained by the image forming optical system, and an eyepiece lens for splitting the light beam from the observation sample in one of the optical paths split by the light path splitting means. A relay optical system, and an imaging optical system set to a predetermined reduction magnification for guiding a light beam from the observation sample in the other optical path split by the optical path splitting means to the imaging means,
Is further provided. Both an observation optical system for performing observation with an eyepiece and a low-magnification imaging optical system suitable for the size of the image sensor can be realized with a simple configuration.
Since the same range as the display range on the monitor can be observed with the eyepiece, it is possible to provide an inverted microscope that is most suitable for an observer who needs not only observation with the monitor but also observation with the eyepiece.

(5) In the constitution (3) or (4), the display means has a variable display angle.
Since the angle of the display surface of a monitor such as an LCD can be freely changed, it is possible to provide an inverted microscope capable of taking an observation posture with less fatigue according to the physique and preference of the observer.

(6) In (1), the image of the observation sample is formed at a position protruding a predetermined distance from the image output port, and the photographing device, the television camera, and the digital camera are connected to the image output port. When attaching any of the devices, the photographing device, the photographing lens unit corresponding to any of the television camera or the digital camera device from among a plurality of photographing lens units having different photographing magnifications, and the image output port end face. It is characterized in that it is detachably combined with the unit. A large-sized photographic device can be easily combined with a photographic lens with an appropriate magnification according to the image recording device, and the photographic lens is attached to the mirror body separately from the photographic device or digital camera device. Also, even a digital camera device can be stably attached to the mirror body with higher rigidity, and as a result, it is possible to realize good image recording without image blurring or the like.

(7) In (6), a plurality of photographing lens units having different photographing magnifications respectively corresponding to the photographing device, the digital camera device, and the television camera are provided. According to a feature of the present invention, one of the plurality of photographing lens units is combined depending on the type of camera device or the type of the television camera. Regardless of the type of image recording device such as a photographing device, a digital camera device, and a television camera, it is possible to record images at various photographing magnifications in response to a request from an observer.

(8) In (4) or (5), the magnification of the image of the observation sample displayed on the display means is made equal to the magnification of the image of the observation sample observed by the eyepiece. A reduction magnification of the imaging optical system is set. The observer can always observe with the same magnification as the observation magnification with the eyepiece lens and the magnification of the image displayed on the display means, and can perform the observation work without any discomfort.

(9) In (4) or (5), when displaying the image picked up by the image pickup means on the display means, a signal processing section having an electronic zoom function for enlarging at an arbitrary magnification is provided. Provided, reduction magnification (β) of the imaging optical system
Is substantially equal to the range of the image picked up by the image pickup means and the range observed by the eyepiece (β ≒ K / FN, where K is the diagonal length of the image sensor and FN is the number of fields of view of the eyepiece).
Then, by changing the magnification of the electronic zoom, it is possible to make the magnification of the image of the observation sample displayed on the display means equal to the magnification of the image of the observation sample observed by the eyepiece. Is characterized by the following. The range of the image picked up by the image pickup means is enlarged and displayed on the display means using electronic zoom according to the preference of the observer while realizing the capture of the maximum range that is substantially equal to the observation range with the eyepiece. This allows observation with the same magnification as the eyepiece.

(10) In (9), means for storing a plurality of magnifications of an image of the observation sample displayed on the display means changed by the electronic zoom function, and an image of the observation sample image displayed on the display means. Means for setting the magnification to an arbitrary magnification. Observation can be easily performed at an arbitrary electronic zoom magnification stored using the display means.

Further, according to each of the above-mentioned inverted microscopes, it becomes possible to imprint a micro-scale or the like and to record an image scaled by zooming in all of the image recording devices, which makes it extremely difficult to operate. It is convenient.

Further, by providing a display device such as an LCD for displaying an image picked up by the image pickup device on the front surface of the microscope main body, monitor observation with less fatigue can be realized and image recording can be easily performed.

[0142]

As described above, according to the inverted microscope according to the present invention, a photographing device such as a large-size camera or a 35 mm camera, a television camera, a digital camera, and a desired image recording according to the requirements of the user of the microscope. The devices can be efficiently combined.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a schematic configuration in a case where the photographing device according to the first embodiment is combined;

FIG. 3 is a diagram illustrating a schematic configuration when the digital camera device according to the first embodiment is combined;

FIG. 4 is a diagram illustrating a schematic configuration when the television camera according to the first embodiment is combined;

FIG. 5 is a diagram showing a schematic configuration of a second embodiment of the present invention.

FIG. 6 is a diagram showing a schematic configuration of a third embodiment of the present invention.

FIG. 7 is a diagram showing a schematic configuration of a modification of the second embodiment of the present invention.

FIG. 8 is a diagram showing a schematic configuration of a modification of the second embodiment.

FIG. 9 is a configuration diagram of an inverted microscope according to a fourth embodiment of the present invention.

FIG. 10 shows a photographing device that can be mounted with a large-size camera and a 35-mm camera, a digital camera device capable of observing a moving image with a display device such as a built-in LCD, and a photographing lens corresponding to three image recording devices such as a television camera. FIG.

FIG. 11 is a diagram showing a shape of a mounting portion of a photographing device or a digital camera device.

FIG. 12 is a view showing a state in which the photographing lens and the photographing device of FIG. 10A are attached to the front port of the mirror body, and the photographing lens and the television camera 37 of FIG.

FIG. 13 is a table summarizing magnifications of a photographing lens for observation at the same magnification (10 times) as a magnification of an eyepiece on a display device such as an LCD.

FIG. 14 is a diagram illustrating a fifth embodiment.

FIG. 15 is a diagram illustrating a sixth embodiment.

FIG. 16 is a diagram showing a schematic configuration of an example of a conventional inverted microscope.

FIG. 17 is a diagram showing a schematic configuration of another example of a conventional inverted microscope.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Microscope main body (mirror body) 1a ... Fitting part 2 ... Observation sample 3 ... Stage 4 ... Light source device 5 ... Projector tube 6 ... Objective lens 6a ... Objective lens 6b ... Objective lens 7 ... Revolver 8 ... Half mirror 9 ... Imaging lens 10 Reflective mirror 11 Focusing handle 12 Scales 13 Zoom optical system 14 Mirror 15 Relay optical system 16 Lens barrel 17 Eyepiece 18 Front port 19 Photographing device 20 Large version Camera 21 ... Camera 22, 23 ... Shooting lens 22 ... Large camera shooting lens 23 ... Camera shooting lens 24,25,26,27 ... Reflection mirror 28 ... Photo frame 29 ... Digital camera device 30 ... Display device 31 ... Operation Unit 32: Shooting lens 33: CCD 34: Signal processing unit 35: Image recording unit 36: TV adapter 37: TV camera 37a: Ma Client unit 38 Camera control unit 39 External monitor 51 Split prism 52 Side microscope 101 Microscope body 102 Observation sample 103 Stage 104 Light source device 106 Objective lens 106a Objective lens 106b Objective lens 107 Revolver 109 ... Imaging lens 111 ... Focusing handle 112 ... Scales 113 ... Relay optical system 114a, 114b ... Mirror 115 ... Second relay optical system 116 ... Barrel 116a ... Trinocular port 117 ... Ocular lens 118 ... Large camera Camera lens 119 Camera shooting lens 120 Large-size camera 121 Camera 122 Reflecting mirror 123 Photo frame 124 Side port 125 TV camera shooting lens 126 TV camera 127 Digital camera 128 Camera control unit G 129: External monitor 130: Personal computer 131: Monitor 201, 301: Mirror 201a: Depression 202: Observation sample 203: Stage 204: Light source device 205: Projection tube 206: Objective lens 206a: Objective lens 206b: Objective lens 207 .. Revolver 208 Half mirror 209 Imaging lens 210 Mirror 211 Focusing handle 230 Display devices 230 and 301 Display device 231 Operation unit 233 CCD 234 Signal processing unit 235 Image recording unit 250 Photographing lens 251 Split prism 252 Side port 301 Microscope body 301 Mirror 302 Observation sample 303 Stage 304 Light source device 305 Projector tube 306 Objective lens 307 Revolver 308 Half mirror 309 Imaging lens 31 ... Mirror 311. Focusing handle 312. Signal processing unit 335, 336 ... Image recording unit 351 ... Split prism 352 ... Side port 401 ... Holding frame 402 ... Support shaft 403 ... Holding frame 404 ... Shaft 405 ... Spherical component 500 ... Mirror frame 501 ... Guide member 502 ... Mounting member 502a ... Screw part 502b ... Fitting part 503,504 ... Fixing screw 505,506,507,508 ... Lens frame 507 ... Lens frame 507a, 508a ... Camera mounting screw part 509,510,511 ... Lens group 513 ... Body part 514 ... Attachment members 514a, 514b ... slope portions 515 Dust-proof glass 601, 602 ... switch 603 ... display unit 604a ... MEMORY switch 605 ... EXPOSE switch

Claims (11)

[Claims] An image output port for forming an image of an observation sample on an outer surface facing an observer below a lens barrel on which an eyepiece is mounted is provided on a front side of a microscope main body. An inverted microscope, wherein at least one of at least two types of imaging devices is selectively detachably attached. 2. The photographing apparatus according to claim 2, wherein the at least two types of imaging devices are configured to expose and photograph an image of the observation sample on a film surface, a television camera that captures an image of the observation sample with an image sensor, and outputs image data of the image. The inverted microscope according to claim 1, further comprising a digital camera device configured to capture an image of the observation sample and store the image data as a still image in a recording medium. 3. An image formed at the image output port,
An image reflected once by a reflecting member in an optical path from an observation sample to the image output port, and an image formed on a film surface of the photographing device is an image formed by the photographing device on the film surface from the image output port. 3. The inverted image according to claim 2, wherein a reflection member having an odd number of reflections in an optical path leading to the image is an even image reflected by the reflection member an even number of times in an optical path from the observation sample to the film surface. Type microscope. 4. An imaging optical system including an objective lens disposed below an observation sample mounted on a stage of a microscope main body, and an image forming light beam obtained by the imaging optical system is converted into light of the objective lens. An optical element that forms an image of the observation sample at a position deflected to the observer side from the axis; an imaging unit that captures an image of the observation sample; and an image recording unit that records an image signal captured by the imaging unit An inverted microscope mounted on a front surface of the microscope body facing the observer and displaying an image taken by the imaging means. 5. An optical path splitting means for splitting an image forming light beam obtained by the image forming optical system, and a relay optical system for guiding a light beam from an observation sample in one optical path split by the light path splitting means to an eyepiece. 5. The imaging optical system according to claim 4, further comprising: an imaging optical system set to a predetermined reduction magnification for guiding a light beam from the observation sample on the other optical path split by the optical path splitting means to the imaging means. Inverted microscope. 6. The inverted microscope according to claim 4, wherein said display means changes a display angle. 7. An image of the observation sample is formed at a position protruding from the image output port by a predetermined distance, and any one of the photographing device, the television camera, and the digital camera device is attached to the image output port. In this case, the photographing device, the photographing lens unit corresponding to any of the television camera and the digital camera device is detachably combined with the image output port end face portion from a plurality of photographing lens units having different photographing magnifications. The inverted microscope according to claim 1 or 2, wherein: 8. A plurality of photographing lens units having different photographing magnifications respectively corresponding to the photographing device, the digital camera device, and the television camera, wherein the photographing device, the digital camera device, and the television camera are provided. 8. The inverted microscope according to claim 7, wherein one of the plurality of photographing lens units is combined depending on the type of the lens. 9. The reduction magnification of the imaging optical system is set such that the magnification of the image of the observation sample displayed on the display means is equal to the magnification of the image of the observation sample observed by the eyepiece. The inverted microscope according to claim 5 or 6, wherein 10. A signal processing unit having an electronic zoom function for enlarging at an arbitrary magnification when displaying an image taken by said imaging means on said display means, wherein a reduction magnification of said imaging optical system ( β) is substantially equal to the range of the image picked up by the imaging means and the range observed by the eyepiece (β ≒ K / FN, where K is the diagonal length of the image sensor and FN is the number of fields of the eyepiece). Then, by changing the magnification of the electronic zoom, it is possible to make the magnification of the image of the observation sample displayed on the display unit equal to the magnification of the image of the observation sample observed by the eyepiece. The inverted microscope according to claim 5 or 6, wherein: 11. A means for storing a plurality of magnifications of an image of an observation sample displayed on the display means changed by the electronic zoom function, and a magnification of an image of the observation sample displayed on the display means being set to an arbitrary magnification. 11. The inverted microscope according to claim 10, further comprising a setting unit.