JP2003215463A - Microscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stereomicroscope which can arrange the position of an eye point to a lowest possible position where workability is good regardless of whether there are additional devices, such as an observation device for an assistant and a recorder or not. <P>SOLUTION: The variable power stereomicroscope having a mirror body section provided with an objective lens 4, a variable power optical system 5 disposed behind the objective lens 4, an observation optical system having an image formation lens 6 and an eyepiece 8 is furnished with first optical axis deflecting means 17 for bending an optical axis 16 of the incident light entering the inside of the body section from an area to be examined at an angle of 90°, and second optical axis deflecting means 19, 21 and 23 for deflecting the optical axis bent by the first means 17 again to the same axis as the optical axis 16 of the above incident light while bending the optical axis a plurality of times at an angle of 90°, in which the above optical system 5 is arranged on the optical axis 18 bent from the optical axis 16 of the incident light by the first or second means 17, 19, 21 and 23. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an objective lens,
A variable power optical system provided behind the objective lens and an imaging lens
Having an eyepiece and an observation optical system having an eyepiece
The present invention relates to a zoomable microscope having a section. 2. Description of the Related Art Stereo microscopes are used for medical purposes such as surgery and inspection.
It is widely used for research and industrial use,
This has helped improve its precision and safety. This
The stereo microscope works on the test site at the same time as observation.
Is used for the purpose of
The distance between the lower surface of the microscope
In addition, the position of the eye where the examiner looks through the eyepiece (hereinafter, referred to as
It is called an eye point. ) To the part to be examined
It is desirable that the distance is easy to work without stretching
You. In addition, when observing the test site with the naked eye,
It is preferable that the mirror is small so that the body is not in the way.
New [0003] Also, by observing very fine parts such as nerves,
If you want to observe the whole lesion widely,
Magnification convenient for observation differs depending on usage conditions.
A normal stereo microscope has a variable power optical system. FIG. 16 shows an example of such a stereomicroscope.
FIG. As shown in FIG.
A mirror section 1; an arm section 2 for holding the microscope section 1;
And a gantry 3 supporting the arm 2. microscope
The unit 1 has an optical system as shown in FIG.
You. This optical system aforesaid the light flux from the test site E.
It has an objective lens 4 for converting the light beam into a light beam. Objective lens
Behind 4 is a pair of afocal transformations.
Double zoom lenses 5, 5 ', imaging lenses 6, 6', erect lens
Rhythm 7, 7 'and eyepieces 8, 8' are sequentially arranged
A stereoscopic observation optical system comprising
The examiner's eye O stands the test site E by the stereoscopic observation optical system of
A Galilean optical system that allows for visual observation is configured. What
Oh, afocal zooming zoom lens 5, imaging lens
6. The erect prism 7, the eyepiece 8 are all light beams for one eye only.
Optical systems 5 ', 6', 7 ', 8' of the other eye
5, 6, 7, 8 because they are on the paper
Not shown. Hereinafter, only the optical system for one eye will be described.
You. The luminous flux from the part E to be inspected is
Parallel light that has been made into a local light beam and passed through the objective lens 4
The bundle is imaged through the afocal zoom lens 5.
Lens 6 forms an image on the front focal plane 8f of the eyepiece 8.
The erecting prism 7
Observed by eye O. [0006] In such an observation optical system, a record of the operation is stored.
The recording device 9 is usually inserted for the purpose of
You. That is, the zooming lens 5 and the imaging lens 6
The light beam splitting means 10 is disposed between the light beam splitting means 10 and the light beam splitting means 10.
Imaging lens 11 and mirror 1 in the luminous flux split by
2. An imaging surface 13 is provided, and a mirror 1 is
2, an image of the test site E is formed on the imaging surface 13
You. [0007] By the way, by using the light beam splitting means,
The assistant observes and works with the assistant's observation device.
FIG. 1 of Japanese Patent Publication No. 55-7565 discloses
It is shown. In this configuration, one of the left and right
The assistant is three-dimensional because only one light beam is split and used.
It is not possible to visually observe the test site. [0008] However, do assistants also work?
It is preferable to be able to observe three-dimensionally from the viewpoint.
Must match the actual test site. That
For example, Japanese Patent Application Laid-Open No. 60-91321 discloses a stereoscopic view of an assistant.
An enabling stereo microscope is disclosed. [0009] FIG.
Shows the optical layout of a stereo microscope that enables stereoscopic vision of the hand.
You. The same optical system as that shown in FIG.
The same reference numerals are given and the description is omitted. 14 is a beam splitting hand
The light beam splitting means 14 is a pair of right and left variable magnification lenses.
And splits both of the pair of light beams passing through the lenses 5, 5 '. 1
5 is a semi-transmissive semi-reflection that transmits half of the light beam and reflects half of the light beam
Plane. 6a and 6a 'are arranged in the observer's observation optical path.
A pair of imaging lenses, 6b and 6b 'are assistant's observation light.
It is a pair of imaging lenses arranged in the road. Also, 7a,
7a 'and 8a, 8a' are respectively arranged in the observer's observation optical path.
A pair of erect prisms and a pair of eyepieces,
7b, 7b 'and 8b, 8b' are arranged in the assistant's observation optical path.
A pair of erect prisms and a pair of eyepieces. What
Also, in this case, as in FIG.
Lens 5, imaging lenses 6a and 6b, erect prisms 7a and 7
b, the eyepieces 8a and 8b are all optical systems for only one eye.
And the optical systems 5 ', 6a', 6b ', 7a', 7
b ', 8a', 8b 'are 5, 6a, 6b, 7a, 7b,
8a and 8b are arranged at positions overlapping the paper surface.
Therefore, it is not shown. Here, an afocal zoom lens
The light beams passing through 5, 5 'are transmitted through the light beam splitting means 14 in a semi-transmissive half.
It is divided in two directions by the reflection surface 15 and divided
One of the light beams is directed to the imaging lenses 6a and 6a ',
Are incident on 6b and 6b '. Therefore, examiner O and assistant
Both hands A can observe a stereoscopic image. SUMMARY OF THE INVENTION Generally, a variable power lens
Is composed of two or more groups of lenses, and
Zooming can be performed by changing the distance
Therefore, the length in the optical axis direction is usually
Pretty big. Therefore, the entity of the configuration as described above
In a microscope, the variable power lens is aligned with the optical axis from the test site.
Because they are coaxial, the optical axis direction of the variable power lens
The eye point has become higher depending on the length of
You. Also, in order to install the light beam splitting means 10 in the optical path,
Assuming that the distance required in the optical path is D, the recording device 9 and the assistant
Even without an observation device, a higher eye point
D rises, and the examiner performs work on the test site E
You will not be able to take a comfortable posture. Therefore,
Eye point can be set when there is no such additional device
And if additional equipment is provided, add
Avoid high eyepoints with devices
It is desirable. [0012] Also, Japanese Patent Application Laid-Open No. 60-91321 describes.
In the case of a configuration that allows stereoscopic observation of the assistant on board
Also, secure the distance from the bottom of the mirror to the test site
And the beam splitting means arranged below the objective lens.
-The eye point is increased by the
There is a problem that the posture becomes difficult. Further, the light beam splitting means 14 described above is used.
Also in the case of the configuration described above, the light beam splitting means 14 is installed in the optical path.
The eye point is increased by the space,
The problem is that the workability of
come. The present invention has been made by focusing on the above circumstances.
The purpose is to use an assistant observation device or
Whether or not an additional device such as a recording device is
The position can be located as low as possible with good workability.
It is to provide a microscope which can be cut. Means and Actions for Solving the Problems The above objects are solved.
In order to achieve this, the invention of claim 1 is intended to observe a test site.
Eyepiece optical system, and a mirror body provided with the eyepiece optical system
And a support arm for supporting the mirror, and incident on the mirror
Transmitting light from the test site to the eyepiece optical system
A transmission optical system, and the inside of the support arm is connected to the inside of the mirror body.
And at least a part of the transmission optical system is formed
And a transmission optical system arrangement portion to be disposed.
Microscope. Embodiments of the present invention will be described below with reference to the drawings.
I will tell. In each drawing, the same components as those in FIG.
Are given the same reference numerals and their detailed description is omitted.
You. FIG. 1 shows a stereoscopic microscope according to a first embodiment of the present invention.
1 shows an optical system of a microscope. This optical system is shown in FIG.
As shown, it is arranged in the microscope unit 1. Variable magnification len
The optical members such as the zoom lens and the imaging lens
Only the optical system is shown.
Is omitted, but the same Galilean optical system as in FIG. 17 is used.
Has become. In the figure, reference numeral 16 denotes an observation optical axis from a test site E;
Reference numeral 17 denotes a transflective half for bending the observation optical axis 16 by 90 °.
An optical axis deflecting unit (first optical axis deflecting unit) including a reflecting member;
18 is an observation after being bent by the optical axis deflecting unit 17
This is the optical axis, and the objective lens 4 and the variable power lens 5
It is arranged on the optical axis 18. Then, the optical axis deflecting unit 17
Behind the optical axis deflecting unit 17 as described below.
Bend multiple times at 90 ° angle
A second optical axis which is again coaxial with the observation optical axis 16
A plurality of optical axis deflecting units 19, 21 and 23 as deflecting means
Are located. That is, the reference numeral 19 designates the observation optical axis 18 as 90 ° paper.
An optical axis deflecting unit for bending the optical axis upward, 20 is the optical axis deflecting unit.
Observation optical axis after being bent by the deflecting unit 19, 21
Is bending the observation optical axis 20 by 90 ° and is parallel to the observation optical axis 18
An optical axis deflecting unit composed of a transflective member for
You. Numeral 22 indicates that the observation optical axis 20 is folded by the optical axis deflecting unit 21.
It is an observation optical axis after being bent. 23 is the observation optical axis 2
2 with 90 ° paper so as to be coaxial with the observation optical axis 16 again.
An optical axis deflecting section for bending the optical axis above the surface;
Observation light made coaxial with the observation optical axis 16 by the deflection unit 23
Axis. An imaging lens is provided behind the optical axis deflecting unit 23.
6, erect prism 7, eyepiece 8 are provided respectively
ing. Reference numeral 25 denotes light arranged on the observation optical axis 22.
This is a bundle division unit. 26 is provided by the light beam splitting unit 25
This is the optical axis after being reflected and travels in the direction perpendicular to the paper.
It is. This optical axis 26 will be described later in FIG.
To enter the imaging lens 11 of the recording device 9
You. Reference numeral 27 denotes a field of view arranged on the extension of the optical axis 22.
28 is a display panel, 29 is this display panel 2
To make the light beam emitted from 8 into an afocal light beam
-It is a lens. IL is an illumination light source, as described above.
Behind the optical axis deflecting unit 17 made of a semi-transmissive semi-reflective member
Further, it is arranged on an extension of the observation optical axis 16. Next, the flow of the luminous flux in the optical system having the above configuration
Will be described. The light beam from the test site E is deflected by the optical axis.
Passes through the objective lens 4 after being refracted by the part 17
Into an afocal luminous flux
After entering the lens 5, it is transformed again as an afocal light beam.
The light is emitted from the magnification lens 5. This light beam is transmitted to the optical axis deflecting unit 1
After being further bent at 9 and 21, the light beam splitting section 25
Is divided into two. Divided into two parts by the light beam splitting unit 25
The other light beam is transmitted to the imaging surface 1 of the recording device 9 (see FIG. 17).
3 on the other hand, while the luminous flux is further
After being refracted by the imaging lens 6,
Thus, the image is erected by the erecting prism 7. And
Therefore, the test site E is brought to the examiner O by the eyepiece 8.
To be observed. On the other hand, the light beam emitted from the display panel 28 is
It becomes an afocal light beam through the ray lens 29,
An optical axis deflecting unit 21 made of a transflective member
After overlapping with the observation optical axis 22 as
Is divided into two parts on the imaging surface 13 of the recording device 9 and the examiner's eye O
And various kinds of information are projected. Also,
The illumination light emitted from the bright light source IL is the semi-transmissive half described above.
The observation light is transmitted through an optical axis deflecting unit 17 composed of a reflecting member.
The test site E is illuminated from a direction coaxial with the axis 16. As described above, the stereoscopic microscope of this embodiment
The mirror is connected directly to the variator lens 5 connecting the test site E and the examiner's eye O.
It is located on the optical axis almost perpendicular to the line,
The eye point can be adjusted regardless of the length of the double lens 5 in the optical axis direction.
There is a great operational advantage that it is lower. Also, TV
The light beam splitting unit 25 for taking the light beam into a recording device or the like is also
The point where the point is not raised, that is, the observation optical axis 16
Are arranged on the observation optical axis 22 at a right angle to
Therefore, even if an additional device such as a TV recording device is
It has the advantage that the point does not increase. further,
In recent years, various types of information have been viewed with a microscope to improve the efficiency of surgery, etc.
Has been attempted to be displayed within
All the in-view display devices 27 without raising the eye point and
It can be easily installed without lowering workability.
Become. In this embodiment, the objective lens 4 is observed.
It is arranged on the optical axis 18 and the imaging lens 6 is placed on the observation optical axis 24.
The objective lens 4 is arranged on the observation optical axis 16,
Further, even when the imaging lens 6 is arranged on the observation optical axis 22,
There is no bearing on lowering the eye point. FIGS. 2 and 3 show a second embodiment of the present invention.
An entity that allows the assistant to perform stereoscopic observation
It is a microscope. FIG. 2 shows the optical system of the present invention in the same direction as FIG.
FIG. 3 shows an assistant in the optical system of the present invention.
Only the optical path for use is shown. Note that the first embodiment and
Similarly, only the optical system for one eye is shown. In FIG. 2, reference numeral 30 denotes a transflective member.
Beam splitting unit, which is located on the observation optical axis 18 and which has an objective lens.
4 and a variable power lens 5. 31 is luminous flux
After the optical axis 18 is bent by 90 ° by the splitting section 30
In FIG. 3, reference numeral 32 denotes a bent optical axis 31.
This is the optical axis deflecting unit. 33 is an optical axis deflecting unit 32
This is the optical axis after the optical axis 31 has been bent. Also, the optical axis
Behind the deflecting section 32, the imaging lenses 34 and 34 '
Mechanisms 35, 35 'and eyepieces 36, 36' are sequentially arranged.
Are lined up. Incidentally, reference numeral 37 denotes a window arranged on the optical axis 31.
-This is a prism that rotates the observation image and actually observes it.
It works to match the direction of the observation image with the direction. Also, the drive
The prism 37 is connected to a pair of left and right imaging lenses 34 and 34 '.
It has a size that allows both of the pair of incident left and right light beams to pass
ing. According to the above configuration, the light beam from the test site E
Passes through the objective lens 4 and becomes an afocal light beam.
The light beam reflected by the light beam splitting unit 30 is shown in FIG.
Guided by the assistant's observation optical system and passed through the drive prism 37
Then, after being bent by the optical axis deflecting unit 32, a pair of left and right
The light enters the imaging lenses 34 and 34 ',
The image is erected by 5, 35 '. Accordingly
Then, the part E to be examined is brought to the assistant A with the eyepieces 36 and 36 '.
Observed in three dimensions. On the other hand, the light transmitted through the light beam splitting unit 30
The light beam enters the variable power lens 5 and is similar to that of the first embodiment.
Following the optical path, it reaches the eyepiece 8. As described above, according to the present embodiment, stereoscopic observation is performed.
Despite having an optical system for assistants that can
Practically excellent effect that the eye point of the eye does not increase
Play a fruit. FIG. 4 shows a third embodiment of the present invention.
As in the second embodiment, the assistant can perform stereoscopic observation.
Operating microscope. The configuration of the present embodiment is similar to that of the first embodiment.
In the example configuration, an optical axis deflection comprising a transflective member is used.
Behind the part 21, the same observation optical system as that of the examiner O is used for assistants.
It has been added. That is, a pair of members behind the optical axis deflecting unit 23
Imaging lenses 3a, 3a ', a pair of erect prisms 4a,
4a 'and a pair of eyepieces 5a, 5a' are sequentially arranged.
In addition, a pair of imaging lenses are provided behind the optical axis deflecting unit 21.
Lenses 3b, 3b ', a pair of erect prisms 4a, 4a',
A pair of eyepieces 5a and 5a 'are sequentially arranged.
However, the figure shows only the optical system of one eye, and the optical system of the other eye.
Science 3a ', 3b', 4a ', 4b', 5a ', 5b'
Is omitted. According to this configuration, the examiner O can use the imaging lens 3
The images formed by a and 3a 'are converted into eyepieces 5a and 5a.
a ′ enables stereoscopic observation.
The images formed by the lenses 3b and 3b 'are
Stereoscopic observation can be performed by the lenses 5b and 5b '.
The assistant A also three-dimensionally examines the test site E similarly to the examiner O.
Despite being able to observe, examiner O's eye point is high
And the eye point of assistant A is also the examiner
Very operable because it can be as high as that of O
Become. FIGS. 5 to 10 show a fourth embodiment of the present invention.
It is shown. Conventionally, the microscope unit 1 was moved or tilted.
Test using an arm with a function that can be tilted
While the part was moved, this embodiment uses a microscope
This can be done by the optical configuration of part 1.
It is. That is, the variable power optical system 38 of this embodiment is
Corresponds to the left and right eyes of examiner O as in the first to third embodiments
It is not composed of a pair of right and left
Changes in the stereomicroscope described in the back of Hei 4-156412
It consists of one lens system like a double optical system. In FIG. 5, the optical axis deflecting unit 39 is the same as that in FIG.
It is arranged at the same position as the optical axis deflection unit 17 and
It is possible to incline with the intersection B of the observation optical axis 18 and the observation optical axis 18 as a fixed point.
Has become. As shown in FIG. 8 and FIG.
9 is a rotation axis at which the extension of the center line intersects at right angles at the intersection B
It is supported by 40,41. 42 is a rotation
It is integral with the shaft 40 and rotatably supports the rotating shaft 41.
It is a connecting part. Also, the rotating shaft 40 has a rotating shaft 40.
Rotation angle of motor 43 and rotation shaft 40 for rotating
Detecting means 44 for detecting the degree (for example, an encoder
―) Is attached. On the other hand, the rotation shaft 41
Motor 45 for rotating transfer shaft 41 and rotation shaft 41
Detecting means 46 (for example, an engine
Coder) is attached. In FIG. 5, reference numeral 47 denotes a drive prism.
By rotating about the observation optical axis 22, the observation image is rotated.
An image rotator is configured to turn over. FIG.
Reference numeral 48 denotes a microscope unit, inside of which is shown in FIG.
Optical system is arranged. 49 is, for example,
No. 21887 discloses a mirror moving device.
While holding the microscope section 48,
It can be moved in any direction in the horizontal plane. In this configuration, the rotating shaft 41 is connected to the rotating shaft 41 shown in FIGS.
Rotate when perpendicular to the paper as shown in
The shaft 41 is rotated by driving the motor 45 to
The optical axis deflecting section 39 disposed in front of the lens 4 is shown at 39 '.
When it is tilted, the test site E is changed to E '(see FIG.
6). Although not shown, the rotation axis 40 is the optical axis.
When the motor 43 is coaxial, the motor 43
If the rotation shaft 40 is rotated, the test site E is perpendicular to the paper surface.
Move straight. Furthermore, the two rotating shafts 40 and 41
If you combine them in any rotation direction and rotation angle,
The field can be moved freely. Also, the rotating shaft 40
Of the observation image caused by the rotation of the
Adjust the actual observation direction by rotating 2
be able to. Further, according to this configuration, the observation visual field is moved.
Not only the viewing angle but also the viewing angle
You can also. FIG. 10 shows that this is realized electrically.
FIG. 2 is an example of an electric block diagram. 50 is the detection described above.
Means for moving the lens body 4 based on the detection values of the means 44 and 46 '.
9 is a calculating unit for calculating the moving direction and the moving amount of No. 9. 51 is
According to the calculation result of the calculation means 50, the lens body moving device 49
Is a control circuit for controlling 52 is controlled by the control circuit 51.
Is a drive circuit of the lens-body moving device 49 that is controlled in a controlled manner.
Further, the moving amount and the moving direction calculated by the calculating means 50.
Is obtained from the rotation angles of the rotating shafts 40 and 41
And the test site caused by the inclination of the optical axis deflecting unit 39
E is equal to the moving amount (L) of E, and the moving direction is the opposite direction.
You. A motor 4 for rotating the rotating shafts 40 and 41
3 and 45 are based on signals from an external switch (not shown).
It is electrically driven. Therefore, the test site E is fixed.
The angle at which the observation is performed while the subject is being watched changes (FIG. 7). Usually, the arm for holding the microscope section is
It is necessary to change the part to be examined when the part is wide
In some cases, reposition or tilt the microscope section
It is configured to be able to. But, of course,
The more functions, the more complicated the arm configuration
The entire device becomes larger. In addition to the operating microscope, the operating room
There are various devices such as beds and anesthesia devices.
Therefore, the indoor space tends to be narrow, and the surgical microscope
Becoming larger means that even smaller working spaces
It is narrowed, which is not preferable for surgical operation.
No. Also, move the arm by hand to move the microscope.
The operator has to interrupt the operation
Therefore, it is preferable that the arm can be moved by electric power. However, these requirements are explained above.
This embodiment is sufficiently satisfied. Conventionally, subject
To make the arm part complicated and large to change the position
However, in this embodiment, the external switch
By simply tilting the optical axis deflecting unit 39 by operating the switch,
The test site can be changed. In addition, the observation optical axis 18
When the optical axis deflecting unit 39 is turned about
Easy correction by turning the prism 47
Can be. Further, in combination with the mirror moving device 49
Therefore, the observation angle can be easily changed with the test site fixed.
Is more convenient for performing surgery.
You. FIG. 11 shows a fifth embodiment of the present invention.
It is. In the first to fourth embodiments, the
Observation optical axis is refracted four times before it reaches the erect prism.
In contrast, the present embodiment is configured to be bent six times.
Things. That is, 53 indicates that the observation optical axis 20 is deflected by the optical axis.
The observation optical axis after being deflected by the unit 21;
4 makes the observation optical axis 53 parallel to the observation optical axis 20 again
An optical axis deflecting unit for refracting the light downward in the drawing. 5
5 is the view after being refracted by the optical axis deflecting unit 54.
Reference numeral 56 denotes an observation optical axis.
Optical axis deflected to bend and make it parallel to the observation optical axis 18
It is a direction part. 57 is an optical axis deflecting unit 56 for the observation optical axis 55
Is an observation optical axis bent by the above. 58 is observation light
The axis 57 is refracted so as to overlap the extension of the observation optical axis 16.
Axis deflecting unit for 59 is an optical axis deflecting unit 58
Is the observation optical axis refracted by the
It is made into an image forming light beam and the erecting prism 7 erects the image.
Is performed. Then, the erecting prism 7
Thereafter, the image is observed by the examiner O through the eyepiece 8. Also,
In this embodiment, the variable power lens 5 is arranged on the observation optical axis 20.
I have. According to the configuration of the present embodiment, the light from the test site E is
The bundle is folded backward as viewed from the examiner O by the optical axis deflecting unit 17.
After being bent, the afocal luminous flux is
It is. Thereafter, this light beam is further transmitted to the optical axis deflecting unit 19.
Afocal magnification after being folded upward
After passing through the zoom lens 5, the optical axis deflecting unit 21 allows the examiner
It is bent to the O side. Luminous flux bent to the examiner O side
Is further bent downward by the optical axis deflecting section 54
After that, the optical axis deflecting unit 56 again folds it toward the examiner O.
The optical axis deflecting unit 58 bends the object E
It becomes coaxial with the light beam. As described above, according to the present embodiment,
When viewed from the examiner O, the length in the depth direction (indicated by F in the figure) is
Obstacles behind the microscope (eg forceps)
Etc.) when the table on which the
Become. Also, which of the optical axis deflecting units 21 and 54 is transflective
Recording device can be attached even if it is formed with a projection member
Therefore, there is an advantage that the degree of freedom in design is increased.
In addition, increasing the number of reflections increases design freedom
Needless to say. FIGS. 12 and 13 show a sixth embodiment of the present invention.
It is shown. As mentioned above, usually a surgical microscope
Is, as shown in FIG. 16, the microscope unit 1 and the microscope unit 1
Arm 2 movably supported, and arm 2 supported
It is composed of a gantry 3 and an observation optical system in this embodiment.
A part of the system is arranged in the arm 2. That is, the optical system shown in FIG.
13 except for the display device 9 in the visual field.
The academic system is the same as the configuration in FIG. In the figure, 6
Reference numerals 0 and 61 denote the outer shapes of the microscope section, respectively, and 62 and 63.
Indicates the outer shape of the arm. In FIG.
Mirror unit 60 and arm unit 62 are connected on observation optical axes 18 and 22
Have been. In FIG. 13, the microscope unit 61 and
The arm 63 is connected on the observation optical axes 18 and 57
I have. According to this configuration, all of the optical systems are connected to the microscope.
Instead of being built in the parts 60 and 61,
A part of the optical system is replaced with the conventional arm units 62 and 63.
This means that it was placed inside. Therefore, the optical axis deflection unit
Tilts the variable power optical system with respect to the optical axis from the test site
Microscope part caused by sliding or translation
Can be prevented from becoming large. FIGS. 14 and 15 show a seventh embodiment of the present invention.
It is shown. In FIG. 14, 64 is observed by the examiner.
In FIG. 15, reference numeral 65 denotes a patient's throat.
An optical axis deflecting unit 66 deflects the observation optical axis 67 by 90 °.
Reference numeral 68 denotes an optical axis deflected by the optical axis deflector 66.
You. Reference numerals 69 and 70 denote incident light beams on the optical axis 68, respectively.
An objective lens and an optical axis deflecting unit that make a focal light beam,
Both are arranged in the housing 71. Also, 72
Is an optical axis deflected by the optical axis deflector 70. Here, the housing 71 is provided with an integrated knob.
It is rotated about the optical axis 72 by the only part 73. Optical axis deviation
The direction parts 74 and 75 deflect the optical axis 72 by 90 °, and
Make it parallel to 8. The optical axis deflecting unit 74 has an odd number,
The direction part 75 has an even number of reflection surfaces. Furthermore, optical axis deviation
The facing parts 74 and 75 are both arranged in a housing 76.
Of the knob 77 integrated with the housing 76 (in the figure)
Indicated by J. ) And arranged on the optical axis 72.
You. Reference numeral 78 denotes the optical axis 6 by the optical axis deflecting unit 74 or 75.
8 is an optical axis made parallel to 8. 5 is arranged on the optical axis 78
A variable power lens 79 deflects the optical axis 78 by 90 °.
An optical axis deflecting unit that coincides with the extension of the optical axis 67.
You. Reference numeral 80 denotes an optical axis deflected by the optical axis deflector 79.
You. Further, behind the optical axis deflecting unit 75, the imaging lens 6, the positive
A standing prism 7 and an eyepiece 8 are sequentially arranged. In the configuration of this embodiment, the portion to be inspected is the optical axis 67.
In the first state above, as shown in FIG.
Position 69 between the optical axis deflecting section 66 and the optical axis deflecting section 70.
The housing 71 is arranged so as to be placed. Also, the optical axis
On the housing 72, an optical axis deflecting unit 74 is provided.
6 is arranged. According to this, observation from the patient's eye 64
The light beam is deflected by 90 ° by the optical axis deflector 66 and
Incident on the lens 69 and emitted as an afocal light beam
Thereafter, the light is deflected upward by 90 ° on the paper by the optical axis deflector 70.
Further, the objective lens 6 is
After being parallel to the optical axis 68 of the lens 9, the light enters the variable power lens 5.
You. The light beam that has passed through the variable power lens 5 is transmitted to the optical axis deflecting unit 79.
After being incident on the imaging lens 6 after being coaxial with the optical axis 67,
The erecting prism erects the image. Accordingly
The examiner O views the patient's eye 64 with the eyepiece 8.
Can be guessed. As shown in FIG. 15, the portion to be inspected is the optical axis 68.
In the case of the second state above, the knob 73 is turned 180 degrees.
Then, the objective lens 69 shifts the optical axis with respect to the optical axis deflecting unit 70.
The housing 71 is arranged to be disposed on the opposite side to the facing portion 66.
I do. In addition, the knob 77 is also turned by 180 ° so that it is on the optical axis 72.
The housing 76 is arranged so that the optical axis deflecting unit 75 is
Place. According to this, the observation optical axis from the patient's throat 65
Is converted into an afocal light beam by the objective lens 69.
After that, the light is deflected upward by 90 ° by the optical axis deflector 70.
And reflected twice by the optical axis deflecting unit 75.
Then, the variable magnification lens becomes parallel to the optical axis 68 of the objective lens 69.
Incident on the nozzle 5. Therefore, the examiner O sets the eyepiece 8
Thus, the patient's throat 65 can be observed. In addition,
By changing the arrangement of the housing 76, the optical axis deflecting member 74 and the optical axis
Changing the position with respect to the deflecting member 75 is the same as that in FIG.
Number of reflections of observation optical system and reflection of observation optical system in FIG.
This is to obtain a correct observation image by making the number of times equal. By the way, depending on the difference between departments such as ophthalmology and otolaryngology.
Therefore, the position of the patient during the operation is different. The patient ’s position
If they are different, the angle of the observation optical axis of the surgical microscope will necessarily be different.
It is becoming. Therefore, there are usually multiple surgical
Arm for holding the microscope or holding the microscope
When performing surgery in other departments by providing a rotating part on the
I use it at an angle. But multiple surgical microscopes
It is not economically preferable to prepare
When using an arm with
Not only is it bulky and large,
Performing cumbersome operations such as changing the angle of the microscopic section
I have to spend time setting up
It is the current situation. However, in this embodiment, the operation microscope
According to this, two knobs 73 and 77 provided in the microscope unit are provided.
By simply turning, you can easily tilt the observation optical axis by 90 °.
You can use different settings without spending time
Can be adapted to different departments. As described above, the stereoscopic microscope of the present invention
The mirror is controlled by a plurality of optical axis deflecting means.
The optical axis after bending a plurality of times from
So that it is substantially coaxial with the optical axis, and
By being placed on a different axis from the optical axis from the inspection site,
The eye point is increased by the space of the variable power optical system
Things can be kept to a minimum. Of course, this place
In this case, sufficient working space is secured. Further, a distributor for distributing a light beam to a recording device or the like.
The step must not be extended over the optical axis from
And can be arranged on the deflected optical axis.
Low eye point regardless of the presence of additional devices such as recording devices
And operability is improved. In addition, within the field of view
Easy to combine display devices and low when combined
The eye point can be maintained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of an optical system of a stereomicroscope according to a first embodiment of the present invention. FIG. 2 is a configuration diagram on the examiner side of an optical system of a stereomicroscope according to a second embodiment of the present invention. FIG. 3 is a configuration diagram on the assistant side of an optical system of a stereomicroscope according to a second embodiment of the present invention. FIG. 4 is a configuration diagram of an optical system of a stereo microscope according to a third embodiment of the present invention. FIG. 5 is a configuration diagram of an optical system of a stereomicroscope according to a fourth embodiment of the present invention. FIG. 6 is a state diagram showing a microscope unit having the optical system of FIG. 5 and an arm unit holding the microscope unit, and showing a state in which the lens unit is not driven. 7 is a state diagram showing a microscope unit having the optical system of FIG. 5 and an arm unit for holding the microscope unit, and showing a state in which the lens unit is driven. FIG. FIG. 2 is a side view showing a configuration of a first optical axis deflecting unit and a driving unit that drives the first optical axis deflecting unit. FIG. 9 is a plan view of FIG. 8; FIG. 10 is a block diagram showing a control method for electrically driving a first optical axis deflecting unit of the optical system of FIG. 5; FIG. 11 is a configuration diagram of an optical system of a stereomicroscope according to a fifth embodiment of the present invention. FIG. 12 shows a sixth embodiment of the present invention, and is an arrangement diagram of an optical system when the optical system of FIG. 1 is applied. FIG. 13 shows the sixth embodiment of the present invention, and is an arrangement diagram of an optical system when the optical system of FIG. 11 is applied. FIG. 14 is a configuration diagram showing a first state of an optical system of a stereomicroscope according to a seventh embodiment of the present invention. FIG. 15 is a configuration diagram showing a second state of the optical system of the stereomicroscope according to the seventh embodiment of the present invention. FIG. 16 is an overall configuration diagram of a stereomicroscope. FIG. 17 is a configuration diagram of an optical system in a conventional stereomicroscope. FIG. 18 is another configuration diagram of an optical system in a conventional stereomicroscope. [Description of Signs] 1 ... microscope section (mirror body section), 4 ... objective lens, 5 ... magnifying lens, 6 ... imaging lens, 8 ... eyepiece lens, 16, 18,
20, 22, 24: observation optical axis, 17: optical axis deflecting unit (first
19, 21, 23... Optical axis deflecting section (second optical axis deflecting means).

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[Procedure amendment] [Submission date] March 19, 2003 (2003.3.1.1)
9) [Procedure amendment 1] [Document name to be amended] Description [Item name to be amended] 0011 [Correction method] Change [Content of amendment] Conventionally, optical members required for microscope observation are arranged.
There is only space inside the mirror body,
Depending on the arrangement of the optical members, the mirror body becomes large. [Procedure amendment 2] [Document name to be amended] Specification [Item name to be amended] 0012 [Amendment method] Deleted [Procedure amendment 3] [Document name to be amended] Specification [Item name to be amended] 0013 [Correction method] Deleted [Procedure amendment 4] [Document name to be amended] Description [Item name to be amended] 0014 [Correction method] Change [Contents of amendment] The object of the present invention is to increase the size of the microscope body.
It is Ah <br/> Ru to provide a microscope so that it is possible to prevent. [Procedure amendment 5] [Document name to be amended] Description [Item name to be amended] 0015 [Correction method] Change [Content of amendment] Means and action for solving the problem Microscope of the present invention
Includes an eyepiece optical system for observing the measurement site, the eyepiece optical system provided with a mirror member, a support arm for supporting said mirror body, the light from the measurement site to be incident on the mirror body A transmission optical system that transmits the eyepiece optical system, and a transmission optical system arrangement unit that is formed inside the support arm and communicates with the inside of the mirror body and at least a part of the transmission optical system is arranged,
That it has a. With this configuration, the test site incident on the mirror body
From the transmission arm located inside the support arm
Eyepiece optics via at least a portion of the selected transfer optics
And the operator examines the site to be examined. [Procedure amendment 6] [Document name to be amended] Specification [Item name to be amended] 0053 [Correction method] Change [Contents of amendment] As described above , the microscope of the present invention is
It is possible to prevent the mirror body from becoming large. [Procedure amendment 7] [Document name to be amended] Description [Item name to be amended] 0054 [Amendment method] Deleted

Continuation of front page    (72) Inventor Shinichi Nakamura             2-43-2, Hatagaya, Shibuya-ku, Tokyo Ori             Inside of Opus Optical Co., Ltd. (72) Inventor Takashi Fukaya             2-43-2, Hatagaya, Shibuya-ku, Tokyo Ori             Inside of Opus Optical Co., Ltd. F-term (reference) 2H052 AA13 AB17 AD04

Claims (1)

Claims: 1. An eyepiece optical system for observing a part to be examined, a mirror body provided with the eyepiece optical system, a support arm supporting the mirror body, A transmission optical system for transmitting incident light from the test site to the eyepiece optical system, and at least a part of the transmission optical system is formed inside the support arm so as to communicate with the inside of the mirror body. A transmission optical system arrangement part.