JP2010102344A - Magnification observation device and magnification observation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnification observation device which precludes the possibility of a change in an observation point when a strut is inclined, irrespective of the height of an object, and is easily handled. <P>SOLUTION: The magnification observation device includes a laying part 21 for laying an observation object W, and a camera attaching part 11 for attaching a camera C, and the camera attaching part 11 is attached to the strut 10 to be movable vertically coarsely and to be adjustable finely. The strut 10 is provided rotatably around a horizontal axial line H, an inclined angle with respect to a vertical line is freely adjusted thereby, and the laying part 21 is provided to be movable vertically coarsely and to be adjustable finely. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a magnification observation apparatus to which a microscope camera for magnification observation such as a so-called microscope is attached.

  This type of camera is sometimes used by being fixed to a stand device in order to prevent camera shake during zoom observation and improve workability. Such a stand device can freely set the shooting angle of the camera with respect to the subject as shown in FIG. That is, when the camera C is rotated around the rotation center O in a state where the rotation center O of the camera C is aligned with the surface of the object W indicated by the two-dot chain line in FIG. The object W can be observed from another angle.

  However, in the conventional general stand device, since the rotation center O of the camera C is fixed, when the surface level of the object W is not on the rotation center O as shown by the broken line, The observation point P1 and the observation point P2 from obliquely above are misaligned. Therefore, it is necessary to adjust and change the angle of the camera C.

  Therefore, a stand apparatus shown in FIG. 13 has been proposed. In FIG. 13, the column 100 to which the camera C is attached can move the position of the rotation center O up and down. Therefore, by setting the rotation center O of the support column 100 on the surface of the object W, it is possible to match the observation point directly above and the observation point from obliquely above.

  However, in this prior art, when observing objects with different heights, the entire support column 100 must be moved up and down so that the center of rotation O matches the surface level of the object. In addition, since the rotation center O of the support column 100 moves up and down, that is, the rotation center O is not a fixed point, the exact position of the rotation center O cannot be known. Therefore, it is not easy to match the rotation center O of the support column 100 with the surface of the object W. Therefore, it is inevitable that the observation point slightly changes when the column 100 is tilted.

  In addition, in order to match the position of the object point in focus of the camera C with the rotation center O, it is necessary to repeat the operation of vertically or tilting the support column 100 while observing the enlarged image, so that the handling is complicated. Become.

  Therefore, an object of the present invention is to provide a magnifying observation apparatus that is easy to handle without fear of changing the observation point when the column is tilted regardless of the height of the object.

  In order to achieve the above object, a first aspect of the present invention is a camera mounting portion for mounting a camera, a rotating column on which the camera mounting portion is mounted so as to be movable in the vertical direction, and a rotation that rotates about a horizontal axis. A fixed column that supports the rotating column attached to the rotating member among the rotating mechanism having a member and a supporting member that supports the rotating member, with the center of rotation being a fixed point via the supporting member; , Means for maintaining the stationary state of the rotating support column inclined with respect to the vertical line, a base on which the fixed support column is erected, and an object to be observed, which is provided below the camera mounting portion The height of the surface of the object placed on the mounting part and on the base and below the mounting part, and placed on the mounting part is the center of rotation of the rotating column. Adjust the height of the mounting part to match the height In the middle of rotating the rotating column around the horizontal axis passing through the center of rotation as a fixed point, and rotating in contact with a contact portion provided in the rotating mechanism It is provided to move between a rotation restricting position that restricts the rotation of the support column at a predetermined inclination angle, and a rotation allowable position that allows further rotation of the rotating support column beyond the predetermined inclination angle. An inclination stopper biased so as to return from the rotation permission position to the rotation restriction position, and moving the inclination stopper from the rotation restriction position to the rotation permission position. When the restriction by is released, the rotating strut further rotates beyond the predetermined inclination angle.

  In order to observe an object with the magnifying observation apparatus according to the present invention, first, the position of the camera is set so that the position of the object point on which the camera is focused is the center of rotation of the column. At this time, since the rotation center of the support column is a fixed point, by moving the mounting unit so as to be the same height as the position of the rotation center, by magnifying the mounting surface of the mounting unit from the camera, The focus level can be easily adjusted to the center of rotation. More specifically, in the magnifying observation apparatus according to the present invention, the height of the mounting portion can be adjusted so that the height of the mounting surface of the mounting portion is the same as the height of the rotation center as a fixed point. Displayed on the display unit in a state where the height of the mounting unit is adjusted so that the height of the mounting surface is the same as the height of the rotation center as a fixed point A position adjusting mechanism capable of adjusting the position of the camera mounting portion in the direction along the rotation column is provided so that the enlarged image on the mounting surface is in focus. Next, after the object is placed on the placement part, the position of the camera mounting part adjusted by the position adjustment mechanism is adjusted so that the enlarged image of the observation point on the object to be observed displayed on the display part is in focus. Without changing, the placement unit is roughly moved up and down and finely adjusted by the height adjustment mechanism so that the surface of the object is in focus. When observing the object from obliquely above, the support column to which the camera is attached is rotated. At this time, the rotation center of the support column coincides with the object point that is in focus, so there is no possibility that the observation point will shift.

  In this specification, the camera mounting portion and the mounting portion are “provided so as to be able to coarsely and finely adjust in the vertical direction” means that the mechanism for moving the camera mounting portion and the mounting portion up and down is used. It means that two types are provided.

  As described above, according to the present invention, since the center of rotation of the support column is a fixed point and coincides with the object point that is in focus, there is no possibility that the observation point will shift.

It is a side view which shows one Embodiment of the stand apparatus used for the magnification observation apparatus of this invention. It is the same front view. It is a front view of the stand apparatus shown in the state which moved the detector to the measurement position. It is a front view, such as a camera and a stage, showing a method for observing objects with different heights. It is a side view which shows the other usage method of this stand apparatus. It is a side view which shows the other usage method of this stand apparatus. It is a front view which shows the modification of this stand apparatus. It is a front view, such as a support | pillar for showing the other example of a rotation mechanism. It is the side view and front view which show a rotation mechanism. It is sectional drawing which shows a rotation mechanism. It is a disassembled perspective view which shows a rotation mechanism. It is the front view of the target object and camera which show the conventional general observation method. It is a front view of the stand apparatus which shows another prior art example.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
In the stand device, the first fixed column 30 and the second fixed column 20 are erected on the common base 4. A rotating column 10 is attached to the upper end portion of the first fixed column 30 via a rotating mechanism 3. A camera mounting portion 11 is attached to the rotating support column 10, while a stage (mounting unit) 29 for mounting the object W is attached to the second fixed support column 20.
The stage 29 is, for example, an XY stage, and is fixed to the stage mounting portion (support portion) 21 with a set screw 28. In addition, an enlarged image of the object W captured by the camera C is displayed on a display such as a liquid crystal monitor, for example.

The rotation mechanism 3 enables the rotation column 10 to rotate about a horizontal axis H. The rotating mechanism 3 shown in FIG. 1 has a rotating shaft (rotating member) 32 fitted to a cylindrical bearing (rotating member) 31 to allow the rotating shaft 32 to rotate, and a set screw. The attachment knob (means for maintaining the stationary state) 33 passes through the cylindrical bearing 31, thereby preventing the rotation shaft 32 from rotating. That is, the rotation support column 10 is provided so that the inclination angle A with respect to the vertical line V can be freely adjusted, as indicated by a two-dot chain line in FIG.
The camera mounting portion 11 and the stage 29 are attached to the rotating support post 10 and the second fixed support 20 in FIG. 1 through a pair of coarse adjustment mechanisms 5A and 5B and fine adjustment mechanisms 6A and 6B, respectively. It has been. That is, both the camera mounting portion 11 and the stage 29 can be coarsely and finely adjusted (finely adjusted) with respect to the support columns 10 and 20 in the vertical direction.
The coarse movement mechanisms 5A and 5B include, for example, sliders 12 and 22 slidable on the pillars 10 and 20, and coarse movement knobs 13 having set screws for fixing the sliders 12 and 22 to the pillars 10 and 20. 23. On the other hand, the fine adjustment mechanisms 6A and 6B are provided with mounting portions 11 and 21 slidably up and down on the sliders 12 and 22, and racks (not shown) provided on the mounting portions 11 and 21 and the sliders 12 and 22, respectively. And a fine adjustment knob (operation knob) 14 and 24 for rotating the pinion.

  As shown in FIG. 2, the detector 7 is provided in this embodiment. The detector 7 detects the level of the surface of the stage 29 as will be described later, and the measurement position P3 facing the surface of the stage 29 as indicated by a two-dot chain line and the stage 29 as indicated by a solid line. It is possible to move horizontally to the retracted position P4 retracted outward. The detector 7 comprises, for example, a proximity switch, measures the distance to the surface of the aluminum stage 29, and when the measurement distance is within a predetermined range, that is, the surface level of the stage 29 is the horizontal axis in FIG. When it substantially matches the H level, a lamp (not shown) is turned on.

Next, how to use the stand apparatus will be described.
First, the camera C is fixed to the mounting portion 11 in a state where the object W in FIG. 1 is not placed on the stage 29. On the other hand, as indicated by a two-dot chain line in FIG. 2, the detector 7 is moved to the measurement position P3. Next, the stage 29 is raised using the coarse movement mechanism 5B and the fine adjustment mechanism 6B (by rotating the fine adjustment knob 24 and the like), and eventually the stage 29 approaches the detector 7 as shown in FIG. When detected, the surface level of the stage 29 coincides with the horizontal axis H (FIG. 1). In this state, while observing the monitor, the coarse adjustment mechanism 5A (FIG. 1) and the fine adjustment mechanism 6A are operated (by rotating the fine adjustment knob 14 and the like) to bring the camera C into focus on the surface level of the stage 29. , The in-focus object point F exists on the horizontal axis H (FIG. 1). In other words, the in-focus object point F and the rotation center O coincide.

  Thereafter, while placing the object W on the stage 29 and observing the monitor, the surface level of the stage 29 and the object W is lowered using the coarse movement mechanism 5B and the fine adjustment mechanism 6B, as shown in FIG. Then, the surface level of the object W is matched with the in-focus position F. Thereby, the magnification observation of the target object W is attained.

  When it is desired to observe the object W obliquely from above, the knob 33 with a set screw is loosened, the support column 10 is rotated around the horizontal axis H, and the inclination of the support column 10 is indicated by a two-dot chain line in FIG. The angle A is set to a predetermined angle. At this time, since the rotation center O of the support column 10 coincides with the point F on the surface of the object W, the observation point does not change even if the observation angle is changed.

  On the other hand, when the height of the object W changes when viewing another object W, the stage shown by the solid line in FIG. 4 is operated by operating the coarse adjustment mechanism 5B and the fine adjustment mechanism 6B while looking at the monitor. 29 is moved up and down as indicated by a two-dot chain line, and the surface of the object W is focused. At this time, since it is not necessary to change the height or angle of the camera C at all, even if the height of the object W changes, it is possible to focus by a simple operation of moving the stage 29 up and down. Therefore, handling is easy.

Next, another method of using the stand apparatus will be described with reference to FIGS.
In addition to the stage 29 in FIG. 1, the stage mounting portion 21 includes a transmission illumination device 40 in FIG. 5 and a side illumination device 41 in FIG. It can be attached up and down.
That is, in this embodiment, since the stage 29 of FIG. 1 is attached to the second fixed support 20 via the stage attachment portion 21, observation can be performed using various illuminations.

  However, in the present invention, it is not always necessary to provide the second fixed column 20, and an adjustment function in the height direction may be added to the stage 29 itself. Further, the stage 29 may be attached to the first fixed column 30.

FIG. 7 shows a modification.
In this modification, a positioning means 7A is provided instead of the detector 7 of FIG. The positioning means 7A is horizontally movable to the measurement position P3 and the retracted position P4, and has a contact surface 7a set at the same level as the horizontal axis H (FIG. 1). Therefore, by bringing the stage 29 into contact with the contact surface 7a, the surface level of the stage 29 can be made substantially coincident with the height of the rotation center O (horizontal axis H).

  In the present invention, the detector 7 and the positioning means 7A need not directly detect the surface of the stage 29 or directly contact the surface of the stage 29, but can detect or position the height of the stage 29. It is only necessary that the surface level of the stage 29 can be matched with the level of the rotation center O. Further, the detector 7 and the positioning means 7A are not necessarily provided separately from the base 4, and may be attached to the fixed column 20 or 30, for example. Further, in the present invention, the detector 7 and the positioning means 7A are not necessarily required. For example, a stand having the same height as the horizontal axis H is placed on the base 4, and the surface of the stand is used as a dummy. You may focus.

Next, another example of the rotation mechanism 3 will be described with reference to FIGS.
In FIG. 8, a fixed horizontal shaft (a member that allows rotation) 50 is fixed to the upper end portion of the first fixed column 30. On the other hand, the lower end portion of the rotating column 10 is fixed to a rotating bracket (rotating member) 60. The rotating bracket 60 is fitted into the fixed horizontal shaft 50 as shown in FIGS. 9 and 10 and has a structure capable of rotating around the fixed horizontal shaft 50.

  A vertical stopper 61 is fitted in the rotating bracket 60. The vertical stopper 61 prevents the rotation support column 10 from rotating from a substantially vertical posture by fitting the tip of the vertical stopper 61 into the stopper hole 51 of the fixed horizontal shaft 50. As shown in FIG. 11, the vertical stopper 61 is provided with a pin 61 a, and by setting the rotation position of the vertical stopper 61, the tip of the vertical stopper 61 is prevented from entering the stopper hole 51. 61 can be released.

  The fixed horizontal shaft 50 is provided with a rotation angle restricting groove (positioning device) 52. A rotation angle restriction pin (positioning device) 62 is always fitted in the rotation angle restriction groove 52 as shown in FIG. As shown in FIG. 10C, the rotation angle restricting groove 52 is formed from the vertical line V to a range of a position rotated by 90 ° to the left and a position rotated by 60 ° to the right. Accordingly, as shown in FIG. 10B, the rotary bracket 60 can be rotated up to 90 ° to the left and 60 ° to the right with respect to the fixed horizontal shaft 50. That is, the rotation support column 10 is provided so as to be rotatable to a substantially horizontal posture, and in the horizontal posture, the rotation angle restriction pin 62 of FIG. 10C is brought into contact with the end of the rotation angle restriction groove 52. It can be positioned.

As shown in FIG. 11, an arc-shaped protrusion 53 is provided on the fixed horizontal shaft 50. On the other hand, the inclination stopper 63 is attached to the rotating bracket 60 of FIG. The inclined stopper 63 is formed with an arc hole 63a through which the arc-shaped protrusion 53 can pass. The tilt stopper 63 can be selectively fixed to the rotation restricting position Pa shown in FIG. 10A and the allowable rotation position Pb shown in FIG. 10B by a fastening tool such as a bolt 63b shown in FIG. ing. That is, at the rotation restricting position Pa in FIG. 10A, when the rotary bracket 60 is rotated counterclockwise (counterclockwise), the tilt stopper 63 contacts the arcuate protrusion 53 after the rotary bracket 60 has rotated 60 °. Touching, it can no longer rotate. On the other hand, at the rotation permissible position Pb in FIG. 10B, the arc-shaped protrusion 53 can pass through the arc hole 63a, and when the rotating bracket 60 is rotated to the right (clockwise), the rotating bracket 60 rotates to the horizontal, and the rotation angle restricting pin 62 in FIG. 10C contacts the rotation angle restricting groove 52 and cannot be rotated any more.
That is, the inclination stopper 63 prevents the rotation support column 10 from rotating from the vertical posture to the non-stop horizontal posture at the rotation restricting position Pa in FIG. Therefore, it is possible to prevent the leading end portion of the expensive camera C from accidentally colliding with the stage 29 and being damaged.

  Further, as shown in FIG. 11, the fixed horizontal shaft 50 is formed with a large number of positioning holes (means for maintaining a stationary state) 54 at a pitch of 15 °. A spring pin (means for maintaining a stationary state) 64 is engaged with and disengaged from the positioning hole 54, so that the rotating column 10 of FIG. 9B can be easily stationary at a pitch of 15 °, for example. Therefore, the camera C can be easily stopped at an arbitrary angle, and as a result, the operability is improved.

  As shown in FIGS. 9A and 9B, the rotary bracket 60 is provided with a slit portion 69. The rotary bracket 60 is provided with a pair of divided portions 68 and 68 above and below the slit portion 69. The pair of split portions 68 and 68 are fastened by a load setting bolt 65 and clamp the fixed horizontal shaft 50. The clamping force of the fixed horizontal shaft 50 is determined by the reaction force of the compression coil spring 66 provided around the load setting bolt 65, that is, the screwing amount of the load setting bolt 65. In this way, the rotary load mechanism 67 including the load setting bolt 65 and the compression coil spring 66 applies pressure to the sliding contact surface 55 that is in sliding contact with the rotating support column 10 so that the inclined rotating support column 10 is moved. Prevents rotation under its own weight. Accordingly, the operability is improved because there is no possibility that the camera C will fall down carelessly.

Next, how to use the rotation mechanism 3 will be described.
First, when used in the vertical posture shown by the solid line in FIG. 8, the lower end of the vertical stopper 61 in FIG. 9 is fitted in the stopper hole 51. Thereby, the vertical stopper 61 fits into the stopper hole 51, and the vertical posture of the rotating column 10, that is, the camera C can be maintained.

  On the other hand, when the camera C is used in an inclined posture, the vertical stopper 61 of FIG. 9 is pulled upward as indicated by a two-dot chain line to remove the lower end of the vertical stopper 61 from the stopper hole 51, and the rotating support column 10 of FIG. Rotate left and right.

  Further, when used in the horizontal posture of FIG. 8, after the stage 29 is first lowered, the arc-shaped protrusion 53 can pass through the arc hole 63a of the tilt stopper 63 as shown in FIG. 10B. Then, the camera C in FIG. 8 is rotated horizontally. In this horizontal posture, the side surface of the article placed on the stage 29 can be enlarged and observed with the camera C, which is suitable for observing an article that easily rolls, such as a cylindrical shape.

  As described above, according to the present invention, since the level of the object itself (mounting unit) can be adjusted up and down separately from the camera, the position of the object in focus of the camera is set to the rotation center of the camera. In addition, by rotating the camera around the center of rotation, the observation points from directly above and obliquely from above can be made coincident, and when observing objects of different heights, the placement unit is moved up and down. On the other hand, when changing the observation angle, the observation can be performed with a simple operation of simply tilting the support column, and therefore, the conventional complicated operation is not required.

  In addition, if a column other than the column to which the camera is mounted is provided and the mounting part can be attached to the column, observation using various types of illumination is possible by attaching a lighting device instead of the mounting part It becomes.

  In addition, if a detector for detecting the surface level of the mounting part and a positioning means for adjusting the surface level of the mounting part to the height of the rotation center, the position of the object in focus of the camera is rotated. Since it can be easily matched with the center, the operability is further improved.

  Further, by rotating the camera to a horizontal posture, it is possible to easily observe the outer peripheral surface of a poorly seated article such as a cylindrical shape.

  Furthermore, according to the present invention, it is possible to prevent an expensive camera from inadvertently rotating to a horizontal posture in a non-stop manner, and thus it is possible to prevent damage to the camera due to the camera colliding with the placement unit.

  In addition, if a preload is applied to the rotating sliding contact surface when the camera rotates, the operability is improved because there is no possibility that the camera will inadvertently fall down due to its own weight or the like. If the vertical posture of the camera can be held in a stable state, operability is good.

10: Rotating support 11: Camera mounting part 20: Second fixed support (another support)
21: Stage mounting portion 29: Stage 40, 41: Illumination device 52, 62: Positioning device 55: Sliding contact surface 61: Vertical stopper 63: Tilt stopper 67: Rotation load mechanism 7: Detector 7A: Positioning means C: Camera H : Horizontal axis W: Object

Claims (8)

A camera mounting section for mounting the camera;
A display unit for displaying an enlarged image of the object imaged by the camera;
A rotating support post to which the camera mounting portion is attached;
A fixed support that supports the rotating support so as to be rotatable around a horizontal axis so that the center of rotation is a fixed point;
A base on which the fixed column is erected;
A mounting unit that is provided below the camera mounting unit and mounts an object to be observed;
The mounting surface is provided on the base and provided below the mounting portion, and the mounting surface of the mounting portion has the same height as the rotation center as a fixed point. Height adjustment mechanism that can adjust the height of the part,
The height adjustment mechanism is displayed on the display unit in a state where the height of the placement unit is adjusted so that the height of the placement surface is the same as the height of the rotation center as a fixed point. A position adjusting mechanism capable of adjusting the position of the camera mounting portion in the direction along the rotating column so that the magnified image of the mounting surface is in focus,
When the object to be observed is placed on the placement surface of the placement unit, the position adjustment mechanism is configured so that the enlarged image of the observation point on the object to be observed displayed on the display unit is in focus. The magnifying observation apparatus, wherein the mounting portion is moved downward by the height adjusting mechanism in a state where the adjusted position of the camera mounting portion is not changed. The position adjustment mechanism includes a first operation unit for adjusting a position of the camera mounting unit in the direction along the rotating column while observing an enlarged image of the object displayed on the display unit. And having
The height adjustment mechanism includes a second operation unit for adjusting the height of the placement unit while a user observes an enlarged image of the object displayed on the display unit. The magnification observation apparatus according to claim 1. The fixed column has a rotation mechanism that rotatably supports the rotation column,
The said rotation mechanism is equipped with the said rotation support | pillar, and is provided with the rotation member which rotates around a horizontal axis line, and the support member which supports the said rotation member, Either of Claim 1 or 2 characterized by the above-mentioned. The magnified observation device described. In the middle of rotating the rotating column around the horizontal axis passing through the center of rotation as a fixed point, an inclination stopper is provided for restricting rotation of the rotating column at a predetermined inclination angle,
The magnification observation apparatus according to claim 3, wherein when the restriction by the tilt stopper is released, the rotating support column further rotates beyond the predetermined tilt angle. The tilt stopper is in contact with a contact portion provided in the rotation mechanism, and a rotation restricting position for restricting the rotation of the rotation support column by a predetermined inclination angle, and exceeding the predetermined inclination angle. It is provided to move between a rotation allowable position that allows further rotation of the rotation column,
The magnification observation apparatus according to claim 4, wherein the restriction by the inclination stopper is released by moving the inclination stopper from the rotation restriction position to the rotation permission position.   The magnification observation apparatus according to claim 5, wherein the tilt stopper is biased so as to return from the rotation allowable position to the rotation restriction position. A camera mounting section for mounting a camera, a display section for displaying an enlarged image of an object imaged by the camera, a rotating support column to which the camera mounting section is mounted, and a center of rotation of the rotating support column. A fixed column that is pivotably supported around a horizontal axis, a base on which the fixed column is erected, a mounting unit that is provided below the camera mounting unit and mounts an object to be observed, and The mounting portion provided on the base and provided below the mounting portion, and the mounting surface of the mounting portion has the same height as the rotation center as a fixed point. A height adjusting mechanism capable of adjusting the height of the mounting portion, and the height adjusting mechanism allows the height of the mounting portion to be the same as the height of the rotation center as a fixed point. In the adjusted state, the above-mentioned display surface displayed on the display unit is enlarged. As in focus of the image, a said camera mounting unit wherein the adjustable positioning mechanism in the direction of position along the pivot post, enlarged observation method of magnifying observation apparatus using comprising the,
When the object to be observed is placed on the placement surface of the placement unit, the position adjustment mechanism is configured so that the enlarged image of the observation point on the object to be observed displayed on the display unit is in focus. In the state where the adjusted position of the camera mounting portion is not changed, after the mounting portion is moved downward by the height adjusting mechanism, the rotating column is rotated around the horizontal axis line, and an object is obtained. Magnification observation method to observe. A camera mounting section for mounting a camera, a display section for displaying an enlarged image of an object imaged by the camera, a rotating support column to which the camera mounting section is mounted, and a center of rotation of the rotating support column. A fixed column that is pivotably supported around a horizontal axis, a base on which the fixed column is erected, a mounting unit that is provided below the camera mounting unit and mounts an object to be observed, and A height adjustment mechanism provided on the base and provided below the mounting unit, and capable of adjusting the height of the mounting unit, and a position of the camera mounting unit in a direction along the rotating column A magnification adjustment method using a magnification observation device comprising:
The height of the placement unit is adjusted by the height adjustment mechanism so that the height of the placement surface of the placement unit is the same as the height of the rotation center as a fixed point,
The position of the camera mounting portion in the direction along the rotating column is adjusted by the position adjustment mechanism so that the enlarged image of the placement surface displayed on the display portion is in focus.
The object to be observed is placed on the placement surface of the placement unit,
The height adjustment mechanism without changing the position of the camera mounting portion adjusted by the position adjustment mechanism so that the magnified image of the observation point on the object to be observed displayed on the display unit is in focus. A method of magnifying and observing an object by moving the mounting portion downward by rotating the rotating column around the horizontal axis.

Images