KR200306700Y1 - The sliding structure of a microscope for adjusting the focus - Google Patents

Abstract

The present invention relates to a sliding structure of the focusing device for adjusting the lens focus in the microscope, and more particularly, to a structure for adjusting the lens focus by moving the material stage up and down finely and uniformly in the form of rolling friction of the ball.

In the microscope of the present invention, the sliding structure for adjusting the lens focus includes a main body 3 in which the objective lens 2 is accommodated, and a combination 4 in surface contact with the main body 3, and the main body 3 up and down. Move to adjust the focus of the objective lens 2 with respect to the test object. In addition, grooves 29 are formed on one side of the main body 3 and one surface of the coupling body 4 so that at least one ball 25 rotates in the vertical direction, and the grooves 29 have a ball friction cloud. The main body 3 is moved up and down with respect to the assembly 4 while doing so.

Description

The sliding structure of a microscope for adjusting the focus

The present invention relates to a sliding structure of the focusing device for adjusting the lens focus in the microscope, and more particularly, to a sliding structure for adjusting the lens focus by moving the material stage up and down finely and uniformly in the form of rolling friction of the ball.

1A and 1B are front and side views, respectively, of a microscope for moving an objective lens up and down to adjust the lens focus according to the prior art.

As shown in FIGS. 1A and 1B, the microscope is an experimental apparatus used for research and learning purposes in the scientific field, and an object that cannot be directly observed by the human eye is placed on the stage 9, and the eyepiece ( 1) and the objective lens 2 to enlarge the object.

In this microscope, the support shaft 5 and the stage 9 on which the test object is placed are fixed to the upper surface of the pedestal 6, respectively. In addition, the microscope enlarges the test object of the stage 9 using the eyepiece 1 and the objective lens 2, and in the case of converting the magnification, the support shaft 5 after replacing the objective lens 2 In order to move the coupling (4) coupled to the shanghai movable up and down with respect to) to fix the position of the assembly (4) with a fixing knob (7). When the lens focus of the test object is not matched, the main body 3 in which the objective lens 2 is accommodated is finely moved up and down in the surface contact form with respect to the assembly 4. Description of the sliding structure in such a microscope is described in Korean Utility Model Registration No. 213321.

Hereinafter, the sliding structure in the microscope according to the prior art disclosed in the Utility Model Registration No. 213321 will be described.

FIG. 2 is a perspective view illustrating a combination in surface contact with a main body in which an objective lens is accommodated in the microscope shown in FIG. 1, and FIG. 3 illustrates a sliding structure in a microscope by cutting the inside of the main body and the combination shown in FIG. It is a cross section.

As shown in Figs. 1A to 3, in the sliding structure of the prior art, the main body 3 is engaged up and down with the assembly 4 in a surface contact form. A dovetail 10 having a trapezoidal cross section protrudes in the vertical direction on one surface of the main body 3, and a dovetail groove is formed on one surface of the assembly 4 to engage the dovetail 10. In addition, the rack gear 12 is integrally fixed to the dovetail 10, and the pinion gear 13 meshing with the rack gear 12 is installed inside the assembly 4. That is, when adjusting the lens focus, the focus knob 8 which is integrally rotated with the pinion gear 13 is turned to finely linearly move the rack gear 12 meshing with the pinion gear 13 up and down. Then, the objective lens 2 accommodated in the main body 3 also moves up and down similarly to the rack gear 12, and the lens focus is adjusted.

In the sliding structure for adjusting the lens focus in the microscope as described above, the dovetail 10 and the dovetail grooves are respectively processed to a small tolerance so that the objective lens 2 can easily move up and down without shaking, and between the dovetail 10 and the dovetail grooves. Lubricants (eg grease) should be applied evenly. However, in order to process the dovetail 10 and the dovetail groove with minute tolerances, lapping should be performed in a process of assembling the body 3 and the assembly 4, which is performed using a wrap material and oil. The surface where the dovetail 10 and the dovetail groove contact each other should be polished by a highly skilled worker. Therefore, in the prior art, it is not easy to perform the assembly work of the microscope due to the lapping operation, the manufacturing cost of the microscope is increased due to the labor cost required for the lapping operation.

The present invention is provided to solve the problems of the prior art as described above, while the main body accommodated in the objective lens is easily moved up and down in the form of rolling friction of the ball with respect to the assembly, but the high degree of lapping in the assembling process of the microscope The object is to provide a sliding structure for adjusting the lens focus in a microscope that does not require manual processing.

1A and 1B are front and side views, respectively, of a microscope for moving an objective lens up and down to adjust the lens focus according to the prior art;

FIG. 2 is a perspective view illustrating a combination in surface contact with a main body in which an objective lens is accommodated in the microscope shown in FIG. 1;

3 is a cross-sectional view showing a sliding structure in a microscope by cutting the inside of the main body and the assembly shown in FIG.

Figure 4 is a perspective view showing a sliding structure in the microscope for moving the objective lens up and down in the form of rolling friction of the ball to adjust the lens focus according to an embodiment of the present invention,

FIG. 5 is a cross-sectional view of the inside of the body and the assembly cut in the sliding structure shown in FIG.

FIG. 6 is an exploded perspective view illustrating components used for rolling friction of a ball in the sliding structure shown in FIG. 5;

Figure 7a is a side view showing a microscope for moving the stage in the form of rolling friction of the ball to adjust the lens focus according to another embodiment of the present invention,

FIG. 7B is a cross-sectional view illustrating a ball slide part for cutting a portion of the microscope shown in FIG. 7A to move a stage of the stage.

♠ Explanation of symbols on the main parts of the drawing ♠

1 eyepiece 2 objective lens

3: main body 4: combined body

10: dovetail 12, 22: rack gear

21: first support 25: ball

26: ball holding plate 27: guide rail

Sliding structure for adjusting the lens focus in the microscope of the present invention for achieving the object as described above is a surface contact with the movable base, such as the main body or the stage is fixed, and the movable member such as the main body or the holder And a combination to adjust the focus of the objective lens with respect to the test subject while the shank and move member moves up and down. In addition, a groove is formed on one side of the shank member or one surface of the assembly contacting the one side so that at least one ball rotates in the vertical direction, and the shank member is connected to the assembly while the ball is cloud-frictiond. Is moved up and down.

In addition, one side surface of the pair of second and third supports fixed to the assembly are in contact with both side surfaces of the first support fixed to the shank moving member, the groove is both sides of the first support The surface and the one side of the pair of second and third supports are preferably formed along the longitudinal direction, respectively.

In addition, the guide rail in contact with the ball is more preferably installed inside the groove.

In addition, a ball holding plate is inserted between the both side surfaces of the first support and one side of the pair of second and third supports without fixing, and the ball holding plate is smaller than the length of the first support. And it is more preferable that one or more holes are formed in a line along the longitudinal direction so that each of the one or more balls can be fitted and rotated.

In addition, the ball receiving plate is more preferably limited to the vertical movement by the locking projection protruding in the lateral direction at both ends of the first support or both ends of the pair of second and third support.

In addition, it is more preferable that the pressure adjusting plate is coupled to the third support, and the pressure adjusting plate is installed to penetrate the screw so as to contact the third support.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the sliding structure for adjusting the lens focus in the microscope according to the present invention will be described in detail.

Figure 4 is a perspective view showing a sliding structure in the microscope for moving the objective lens up and down in the form of rolling friction of the ball to adjust the lens focus according to an embodiment of the present invention, Figure 5 is a sliding structure shown in FIG. In Figure 6 is a cross-sectional view showing the inside of the main body and the combination cut, Figure 6 is an exploded perspective view showing the components used for the friction of the ball in the sliding structure shown in FIG.

1, 4 to 6, the sliding structure for adjusting the lens focus in the microscope of the present invention is a plurality of balls (up and down) arranged in the vertical direction between the contact surface of the body 3 and the assembly 4 ( 25) are installed. In addition, in the sliding structure, when the main body 3 in which the objective lens 2 is accommodated is moved in a rack and peer manner to adjust the lens focus, a plurality of balls 25 are moved with respect to the main body 3 and the assembly 4. While performing cloud friction, the main body 3 easily moves up and down.

The sliding structure includes a main body 3 in which the objective lens 2 is accommodated, and a first support 21 is attached to one side of the main body 3. The rack gear 22 is fixed to the first support 21, and grooves 29 used as the rolling friction path of the ball 25 are formed on both side surfaces of the first support 21 along the longitudinal direction, respectively. Is formed. And, at both ends of the first support 21 in which the groove 29 is formed, the locking projections 28 are formed to protrude more than the groove 29 in the lateral direction of the first support 21, the groove 29 ), Two guide rails 27 made of long steel rods are respectively installed so that the ball 25 can easily perform frictional friction.

The sliding structure includes a combination 4 provided with a focus knob 8 for moving the main body 3 up and down, and one side of the combination 4 is in contact with both side surfaces of the first support 21. The pair of second and third supports 24a and 24b are coupled. Then, an external force is applied to the third support 24b, and this external force is applied by the pressure regulating plate 30 coupled to one side of the third support 24b. That is, the pressure adjusting plate 30 is installed so that the screw is in contact with the third support 24b, the third support 24b is to be able to move finely left and right by tightening or loosening the screw. In addition, the pair of second and third support members 24a and 24b are formed with grooves and locking jaws, respectively, similarly to the first support member 21, and guide rails 27 are respectively provided.

The ball 25 is inserted into the ball receiving plate 26 between the surfaces where the first support 21 and the second and third support members 24a and 24b respectively contact each other. The ball receiving plate 26 has a smaller shape than the first, second, and third support members 21, 24a, and 24b, and a plurality of holes are arranged in the ball 25 so as to freely rotate. In addition, the ball receiving plate 26 is located between the first support 21 and the second and third support (24a, 24b) in an unfixed state, but the locking step 28 so as not to escape from the first support (21) In that movement is limited.

Below will be described in detail the operating relationship for the sliding structure for adjusting the lens focus in the microscope configured as described above.

First, the test subject to be observed is placed on the stage 9 of the microscope, and the objective lens 2 of magnification to be enlarged is mounted on the main body 3. Then, the objective lens 2 is moved to the up and down direction of the support shaft 5 so as to be spaced apart from the object stage 9 by a suitable distance, and then fixed by the fixing knob 7.

When the lens is focused on the test object, the focus knob 8 is rotated to move the main body 3 containing the objective lens 2 up and down. That is, the focus knob 8 is integrally coupled to the pinion gear 23, and the pinion gear 23 meshes with the rack gear 22. Then, the rotation of the pinion gear 23 is converted into a straight line in the up and down direction in the rack gear 22, and the main body 3 moving integrally with the rack gear 22 is moved up and down.

In addition, in the sliding structure in the microscope, the balls 25 are provided between the surfaces of the first support 21 and the second and third support members 24a and 24b that are in contact with each other in order to move the main body 3 up and down more easily. Rotate while rubbing the clouds along the guide rails (27). In addition, the main body 3 is blocked by the locking jaw 28 of the ball receiving plate 26 that moves in accordance with the rotation of the ball 25, the maximum movement of the main body 3 up and down. In addition, when adjusting the degree of contact of the ball 25 to the guide rail 27, tighten or loosen the screw of the pressure control plate (30).

The sliding structure in the microscope as described above may be implemented through other embodiments to adjust the lens focus.

Figure 7a is a side view showing a microscope for moving the stage in the form of cloud friction of the ball to adjust the lens focus according to another embodiment of the present invention, Figure 7b is a portion of the microscope shown in Figure 7a to move the stage It is sectional drawing which shows the ball slide part to make.

As shown in FIGS. 7A and 7B, in the sliding structure of the microscope according to another embodiment, the objective lens 42 is fixed, and the lens focusing lens 43 while supporting the material stage 49 moves up and down. This is adjusted. In the sliding structure, the ball slide part is installed between the fixing base 43 and the body 44 of the microscope.

That is, when the lens focus is to be adjusted, the focus knob 48 attached to the body 44 is rotated left and right. Then, the pinion gear 53 interlocked with the focus knob 48 rotates, and the rack gear 52 meshed with the pinion gear 53 linearly moves up and down. In addition, since the rack gear 52 is attached to the support 51 which is integrally fixed to the fixed base 43, the rich stage 49 is moved up and down in accordance with the movement of the rack gear 52. At this time, a ball slide part is installed between the support 51 and the body 44 in contact with each other so that the fixing stand 43 easily moves up and down. The ball slide part is composed of a plurality of balls 55 rotating along a groove formed along the longitudinal direction of the support 51, and a ball receiving plate for arranging the balls 55 in a row. Therefore, in sliding under the microscope, the plurality of balls 55 are frictionally rubbed against the support 51 and the body 44 so that the fixing stand 43 is easily moved up and down.

As described in detail above, the sliding structure for adjusting the lens focus in the microscope of the present invention, while the body is easily moved up and down by rotating the ball while rolling the friction along the contact surface of the main body and the combined body, such as lapping work Since no technology is required, the productivity of the assembly process is improved.

The technical idea of the sliding structure for adjusting the lens focus in the microscope of the present invention has been described above with the accompanying drawings, but this is only illustrative of the best embodiment of the present invention and not intended to limit the present invention. In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (6)

A main body or a fixed stage to which the object stage is accommodated, and a coupling body making surface contact with the moving member such as the main body or the holding member, wherein the moving member moves up and down, In the structure of the microscope for adjusting the focus, A groove is formed on one side of the shank member or one surface of the assembly contacting the one side so that at least one ball rotates in an up and down direction, and the shank member is vertically moved with respect to the assembly while the ball is cloud-frictiond. Sliding structure for adjusting the lens focus in the microscope, characterized in that moved to. The method of claim 1, One side surface of the pair of second and third supports fixed to the assembly is in contact with both side surfaces of the first support fixed to the shank moving member, and the groove is formed on both side surfaces of the first support. Sliding structure for adjusting the lens focus in the microscope, characterized in that formed in the longitudinal direction on each side of the pair of second and third support. The method of claim 2, The guide rail in contact with the ball is sliding structure for adjusting the lens focus in the microscope, characterized in that installed in the groove. The method of claim 3, wherein Between the both side surfaces of the first support and one side of the pair of second and third supports, a ball receiving plate is inserted without fixing, and the ball receiving plate is smaller than the length of the first support and Sliding structure for adjusting the lens focus in the microscope, characterized in that one or more holes are formed in a line along the longitudinal direction so that one or more balls can be inserted and rotated respectively. The method of claim 4, wherein The ball receiving plate is a lens in the microscope, characterized in that the vertical movement is limited by the locking projection protruding in the lateral direction from both ends of the first support or both ends of the pair of second and third support, respectively. Sliding structure to adjust the focus. The method of claim 5, The pressure control plate is coupled to the third support, the sliding structure for adjusting the lens focus in the microscope, characterized in that the screw is penetrated to be in contact with the third support.