KR20170052052A - Experiment device of reflecting telescope - Google Patents

Abstract

Disclosed is a device to test a reflecting telescope. According to an embodiment of the present invention, the device to test the reflecting telescope comprises: a base plate; a primary mirror unit detachably coupled to one side of the base plate, and supporting a primary mirror of the reflecting telescope; and a secondary mirror unit detachably coupled to the other side of the base plate, and supporting a secondary diameter of the reflecting telescope. At least one of the primary mirror unit and the secondary mirror unit is coupled to the base plate to be able to slide, and includes a position fixing member to fixate a position of the primary mirror unit or the secondary mirror unit sliding a predetermined distance on the base plate. The at least one of the primary mirror unit and the secondary mirror unit coupled to the base plate capable of sliding may include a fine focus adjusting unit which adjusts the focus by finely sliding the primary mirror or the secondary mirror even after a position of the primary mirror unit or the secondary mirror unit is fixated by the position fixing member.

Description

{EXPERIMENT DEVICE OF REFLECTING TELESCOPE}

The present invention relates to an experimental apparatus for a refracting telescope, and more particularly, to a refracting telescope such as Newtonian, Cassegrain, and Gregorian telescope, which can adjust the distance between the main and sub- It is possible to move the sub-diameter more precisely and to measure the moving distance of the sub-diameter.

Generally, an optical system is composed of an optical element such as a lens and a mirror, and an optical mechanical part fixing the optical element. The large optical system refers to a large aperture optical system for precise image acquisition. In such a large optical system, it includes two or more optical elements for reducing the length of the lens barrel and correcting the optical aberration. Most telescopes consist of a main mirror and a sub mirror.

Referring to FIG. 1, a Newton-type reflector is a reflective telescope that is formed by reflecting light reflected from a main mirror at a side surface of a sub-mirror. The light is reflected by a plane mirror or a prism on the sub- (See Fig. 1 (a)).

The Cassegrain telescope is made by inserting a small hole in the central part of the main mirror and reflecting the light collected by the main mirror from a slightly front side of the focal point to a sub convex convex mirror and observing the light coming out of the small hole of the main mirror behind the main mirror 1 (b)).

In addition, the Gregorian telescope is used to observe the diffuse light behind the main focal spot and to observe the back of the main focal spot (Fig. 1 (c)).

Although various reflective telescopes are produced according to the types and positions of the sub-magnets as described above, the main and sub-magnets are fixed inside the barrel, which makes it difficult for the students to directly assemble and align the components or to understand the internal structure of the reflective telescope.

The present invention provides a reflex telescope experiment apparatus which can easily and efficiently assemble a reflex telescope while simultaneously testing the optical principle of the refracting telescope.

An object of the present invention is to provide a reflection telescope experimental apparatus capable of forming various reflective telescopes while assembling various optical elements in one optical mechanical part.

SUMMARY OF THE INVENTION The present invention is directed to a reflective telescope experimental apparatus capable of selectively assembling a Newtonian reflective telescope, Cassegrain reflective telescope, or Gregorian reflective telescope.

An object of the present invention is to provide a reflex telescope experimental apparatus capable of quantitatively analyzing a change in an image appearing near a focal plane by precisely moving a sub-mirror with a fine focus adjusting unit.

An apparatus for testing a telescope according to an embodiment of the present invention includes: a base plate; A main mirror unit detachably coupled to one side of the base plate and supporting a main mirror of the reflective telescope; And a sub-mirror unit detachably coupled to the other side of the base plate, the sub-mirror unit supporting a minor diameter of the reflective telescope; Wherein at least one of the main mirror unit and the sub-mirror unit is slidably coupled to the base plate and includes a position fixing member for position fixing after being slid by a predetermined distance from the base plate, At least one of the main scanning unit or the sub-scanning unit that is slidably engaged may finely slide the main mirror or the sub mirror to adjust the focus even after being fixed to the base plate by the position fixing member.

In addition, a plurality of main-unit coupling holes are formed on one side of the base plate so that the protrusions of the main-shaft unit are coupled in an interference fit manner, and a minor-diameter unit guide hole through which the screw projections of the sub- Diameter unit is slidably coupled along the minor diameter unit guide hole and the screw projection is provided with a tightening nut for fixing the position of the minor diameter unit.

Further, the projecting portion of the main mirror unit may be formed of a magnet, and the main mirror unit coupling hole may be formed of iron.

The sub-mirror unit may include a slide member having the screw projection on the bottom surface thereof and slidably engaged with the base plate, and a sub-mirror support slidably coupled to the slide member and coupled with the sub- The microfocus adjuster includes a sleeve fixed to the slide member, an operating portion rotatably coupled to the sleeve and linearly moving on the sleeve when the sleeve is rotated at a predetermined angle with respect to the sleeve, And the other end is coupled to the operating portion. When the operating portion is rotated and moved along the sleeve, the spindle moves in a direction in which the operating portion moves.

The main mirror may be a concave mirror, and the minor mirror may be a flat mirror, a convex mirror, or a concave mirror that is a sloped surface, and the main mirror and the sub mirror may be detachably coupled to the main mirror unit and the sub mirror unit .

A tripod for adjusting the height and angle of the base plate may be coupled to the lower portion of the base plate.

According to the present invention, an optical mechanical part such as a base plate, a main mirror unit, and a sub-mirror unit can be easily assembled to constitute a telescope optical system.

It is also possible to attach a reflector on a sloped surface to one sphere unit to form a Newtonian reflective telescope or to attach a convex or concave mirror to such a sphere unit to create a Cassegrain or Gregorian reflective telescope, The optical principle can be easily understood because the optical differences can be compared while the parts are left as they are and only the bumpers are replaced.

In addition, it is possible to freely adjust the distance between the main and the sub-lens by the sliding method, and it is possible to set the reflective telescope having various focal lengths. In the case of the Cassegrain type and the Gregorian type, the combined focal length is changed while changing the curvature of the sub- In other words, it is possible to easily construct various telescopes with various focal lengths while replacing Pukyong.

Further, the sub-focal unit is provided with the microfocus adjuster, so that the sub-lens can be precisely moved, and the distance at which the sub-lens moves can be measured.

In addition, it is possible to quantitatively analyze the change in the image appearing near the focal plane by precisely moving the sub-diameter by providing a fine focus control unit such as a micrometer. In addition, the Hartmann test can be performed by mounting the Hartmann mask on the surface of the main mirror. Can be analyzed.

In addition, there is an advantage that a main scanning unit can be commonly used for a Newtonian reflective telescope, a Cassegrain reflective telescope, and a Gregorian reflective telescope.

Further, a tripod may be provided to adjust the angle of the base plate to which the sub-mirror unit and the main mirror unit are coupled.

FIG. 1 (a) is a view schematically showing the principle of a Newton-type reflective telescope according to an embodiment of the present invention.
1 (b) is a view schematically showing the principle of a Cassegrain-type reflective telescope according to an embodiment of the present invention.
1 (c) is a view schematically showing the principle of a Gregorian reflection telescope according to an embodiment of the present invention.
FIG. 2 (a) is a view showing a planar mirror coupled to a sub-mirror unit of the experimental telescope experiment apparatus according to an embodiment of the present invention.
FIG. 2 (b) is a view showing a convex mirror coupled to a sub-mirror unit of the experimental telescope experiment apparatus according to an embodiment of the present invention.
FIG. 2 (c) is a view showing a concave mirror coupled to a sub-mirror unit of the experimental telescope experiment apparatus according to an embodiment of the present invention.
FIG. 3 is an enlarged view of a sub-mirror unit in a reflection telescope experimental apparatus according to an embodiment of the present invention.
FIG. 4 is a view showing an eyepiece coupled to a sub-mirror unit of a reflection telescope experimental apparatus according to an embodiment of the present invention.
5 is a bottom view of a base plate of a reflection telescope experiment apparatus according to an embodiment of the present invention.
FIG. 6 is an enlarged view of a microfocus adjuster of a sub-mirror unit in a reflection telescope experiment apparatus according to an embodiment of the present invention.
FIG. 7 is a view showing a form in which a tripod is coupled to a reflection telescope experimental apparatus according to an embodiment of the present invention.
FIG. 8 is an enlarged view of a part of a tripod coupled to an apparatus for testing a telescope according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to such embodiments, and the spirit of the present invention may be proposed differently by adding, modifying and deleting constituent elements constituting the embodiment, .

FIG. 2 (a) is a view illustrating a planar mirror coupled to a sub-mirror unit of the experimental telescope experiment apparatus according to an embodiment of the present invention. FIG. 2 (b) FIG. 2C is a view showing a concave mirror coupled to a sub-mirror unit of the reflection telescope experimental apparatus according to an embodiment of the present invention. FIG. FIG. 3 is an enlarged view of a sub-mirror unit in a reflective telescope experimental apparatus according to an embodiment of the present invention. FIG. 4 is a cross- FIG. 5 is a bottom view of a base plate of an apparatus for testing a telescope according to an embodiment of the present invention, and FIG. 6 is a view illustrating an apparatus for testing a telescope according to an exemplary embodiment of the present invention. Undecanoic a view showing enlarged parts of the fine focus adjustment of the sub-mirror unit.

2 through 6, the apparatus 1 for testing a telescope according to an exemplary embodiment of the present invention may include a base plate 10, a main mirror unit 20, and a sub-mirror unit 30.

The base plate 10 can be made in a relatively thin plate shape. The base plate 10 may serve to support the main mirror unit 20 to which the main mirror 21 is coupled and the sub-mirror unit 30 to which the sub mirror 31 is coupled.

A plurality of main unit coupling holes 11 to which the main unit 20 can be coupled may be formed on the base plate 10 and a sub-unit unit guide hole 12 for allowing the sub- .

The main unit coupling holes 11 may be formed as small circular holes as holes formed in the plate, and a plurality of holes may be formed in the base plate 10. As shown in FIG. 2, the main unit coupling holes 11 may be formed by collecting a plurality of main shaft unit coupling holes (one set of first main shaft unit coupling holes) at one side of the base plate 10, A plurality of unit coupling holes 11 may be formed (a set of second main coupling unit coupling holes). For example, the first main mirror unit coupling hole set and the second main mirror unit coupling hole assembly may be formed by arranging the main mirror unit coupling holes 11 in a cross shape as shown in FIG.

A projection 21 is formed on the bottom surface of the main mirror unit 20 and a main mirror 21 is coupled to the main mirror support 22 and supported by the main mirror support 22 . The protrusion formed on the bottom surface of the main mirror unit 20 may be formed in a columnar shape and may be formed to have a size corresponding to the main mirror unit coupling hole 11, Lt; / RTI >

The main mirror unit 20 can be detached from the base plate 10 by the pulling force of the user and the user can separate the projection from the main mirror unit engaging hole 11, Can be inserted into the coupling hole (11) in an interference fit manner and can be coupled to the base plate (10).

The protruding portion of the main mirror unit 20 may be formed of a magnet and the main mirror unit engaging hole 11 is formed of iron having good magnetism so that the main mirror unit 20 is easily engaged with the main mirror unit engaging hole 11 Can be done.

The main mirror 21 can be detachably coupled to the main mirror support 22 by means of the assembly bolts 220. However, the manner in which the main mirror 21 is detachably coupled to the main support portion 22 is not limited to the manner in which the main bolt 21 is coupled by the assembly bolts 220.

At least a part of the main mirror 21 can be formed in a concave parabolic shape, and can collect light. In the present invention, the main mirror 21 of the Newton-type reflective telescope (see FIG. 2 (a)) and the Cassegrain-type reflective telescope (see FIG. 2 (b)) can be provided as a concave mirror formed into a parabolic- In the case of a telescope, a hole through which the light reflected by the sub-mirror 31b can penetrate may be formed in the main mirror 21. The drilled hole can also be used in the Newtonian formula. Further, the main mirror 21 of the Gregorian reflection telescope (see Fig. 2 (c)) may be provided with a parabolic concave mirror, and the minor lens 31c may be provided with a concave mirror.

The sub-unit guide hole 12 may be formed long in a direction in which the base plate 10 extends.

A screw projection (not shown) coupled to the bottom surface of the sub-mirror unit 30 can be inserted into the sub-unit guide hole 12, and a tightening nut 121 can be coupled to the screw projection. The sub-mirror unit 30 can be fixed to the base plate 10 when the tightening nut 121 is tightened to the screw projection. When the sub-screw tightening nut 121 is loosened to the screw projection, .

Therefore, the user can slide the sub-mirror unit 30 by unscrewing the tightening nut 121 coupled to the screw projection inserted into the sub-mirror unit guide hole 12 to move the sub-mirror unit 30, And the position of the sub-mirror unit 30 can be fixed by tightening the tightening nut 121 at a desired position. The tightening nut 121 can fix the position of the sub-mirror unit 30 at a position desired by the user, and thus can be referred to as a position fixing member.

In the present embodiment, the sub-mirror unit 30 is slid and the main mirror unit 20 is inserted into the main mirror unit coupling hole 11 in an interference fit manner. However, the present invention is not limited to this, (Not shown).

The minor diameter 31 may be removably coupled to the minor diameter support 32 and the minor diameter 31 may be removably coupled to the minor diameter support 32 by a minor diameter tightening bolt 321. The sub-mirror 31 may be provided as at least one of a planar mirror or a convex mirror having a quadrature.

For example, when the sub-mirror 31a is provided as a flat mirror with a quadrangle reflecting at 45 degrees (see Fig. 2 (a)), it can be used as an experimental apparatus for a Newton-type reflective telescope. At this time, the sub-mirror 31a can be coupled to the sub-mirror support 32, and the reflected light from the main mirror 21 is reflected again to extract an image, and observing with the eyepiece 34 or removing the lens, So that it can be located.

In addition, it can be used as an experiment device of the Cassegrain-type reflection telescope when the sub-mirror 31b is mounted as a convex mirror instead of a quadrature plane mirror that reflects the 45 ° angle. When the concave mirror is used, it can be used as an experiment device of the Gregorian reflection telescope have. That is, the user who performs the experiment can be used as an experimental apparatus of the Newton-type reflex telescope, Cassegrain-type reflex telescope, and Gregorian reflex telescope. The user who performs the experiment can use the base plate 10, the main mirror unit 20, The optical principle of the reflective telescope can be easily understood by using an optical mechanical part as it is and by carrying out an experiment to compare the optical difference between two telescopes by replacing only the subsidiaries 31a, 31b and 31c.

The sub-mirror unit (30) may be provided with a slide member (35) slidably coupled to the base plate (10). The slide member 35 may be formed in a wide plate shape having a rectangular shape. The screw protrusion can be formed on the bottom surface of the slide member 35, and the screw protrusion can penetrate the minor-diameter unit guide hole 12.

The screw protrusion may be provided with a tightening nut 121 which allows the slide member 35 to slide along the minor diameter unit guide hole 12 or to fix the slide member 35 at a desired position.

The slide member 35 can be moved along the sub-unit guide hole 12 in the state where the tightening nut 121 is disengaged. When the sub-unit 30 comes to a desired position, They can be fixed together. It is possible to freely adjust and fix the distance between the main mirror 21 and the sub mirror 31 by using the slide member 35 on the base plate 10 so that the main mirror 21 having various focal lengths can be used.

The subpixel unit 30 may be provided with a microfocus adjuster 33 for adjusting the focus of the subpixel 31 and magnified and observed the light reflected by the main mirror 21 and the submirror 31 The eyepiece 34 or the DSLR camera from which the lens is removed may be detachably provided.

The sub-diameter support portion 32 supporting the sub-diameter 31 can be slidably provided on the slide member 35.

First, the slide member 35 moves on the base plate 10 to adjust the distance from the main mirror unit 20, and then moves the sub-mirror support 32 using the fine focus adjustment unit 33, The focus of the image observed with the lens 34 can be finely adjusted.

In general, the focus of the Newton-type refracting telescope is adjusted by moving the eyepiece lens 34 back and forth after securing the minor diameter 31a, and the foci of the Cassegrain-type reflection telescope and the Gregorian-type telescope are moved back and forth in the subscope 31a, (34) can be adjusted while moving back and forth. However, in the present invention, both the Newtonian, Cassegrain, and Gregorian telescopes can be easily adjusted while moving the sub-mirror 31 back and forth. In other words, it is possible to adjust the focus of the Newtonian reflective telescope, the Cassegrain reflective telescope, and the Gregorian reflective telescope using one focusing device, so that the whole device can be simplified and the learning effect can be enhanced.

For example, the microfocus adjuster 33 may be provided with a micrometer. In this case, the fine focus adjusting unit 33 may include an operating unit 331, a sleeve 332, and a spindle 333. [

The operating portion 331 is formed in a cylindrical shape in which a hollow space is formed and is a portion that the user can rotate by hand, and is a portion operated by the user for fine focus adjustment.

The sleeve 332 is formed in a cylindrical shape and can be fixed to the sub-mirror unit 30. More specifically, the sleeve 332 can be fixed to the slide member 35 of the sub-mirror unit 30 or to the part associated with the slide member 35. A portion of the sleeve 332 is inserted into the operating portion 331 and can be linearly moved on the sleeve 332 at a constant rate when the operating portion 331 is screwed with the operating portion 331 and rotated at a predetermined angle. In other words, the operating portion 331 can be rotatably coupled to the sleeve 332.

One end of the spindle 333 may be connected to the operating portion 331 and the other end may be connected to the auxiliary supporting portion 32. The spindle 333 can be disposed through the sleeve 332 and the spindle 333 can move in the direction in which the operating portion 331 moves when the operating portion 331 moves along the sleeve 332 while being rotated .

 The manipulation part 331 and the sleeve 332 can be provided with scales so that the rotation angle of the manipulation part 331 and the movement distance of the manipulation part 331 can be measured and the length through which the sub- And the auxiliary supporting portion 32 can be moved while the experimenter confirms with the naked eye.

The fine focus adjusting portion 33 may serve to finely adjust the focus of the sub-mirror 31 after the sub-mirror unit 30 is slid on the base plate 10 and fixed at an arbitrary position. More specifically, focus adjustment can be finely adjusted to a linear stage that is adjusted by the micrometer after fixing the sub-mirror unit 30 to the base plate 10. When the scale of the micrometer is read, the phase change appearing before and after the focal plane can be quantitatively analyzed. If the Hartmann mask is mounted on the surface of the main mirror 21, the optical aberration appearing on the telescope can be analyzed through the Hartmann test.

It is preferable that the fine focus adjusting section 33 is adjusted in a state in which the sub-mirror unit 30 is fixed on the base plate 10 without adjusting the sub-mirror unit 30 in a moving state. This fine focus adjuster 33 can be applied to both Newton-type reflective telescopes, Cassegrain-type reflective telescopes, and Gregorian-type reflective telescopes.

Therefore, the experimental apparatus (1) of the Newtonian reflective telescope, Cassegrain reflective telescope, and Gregorian reflective telescope according to the present invention divides the optical mechanical parts into a base plate 10, a main mirror unit 20, and a sub- It is an advantage that an experimenter can easily construct a telescope optical system as if assembling a LEGO. For example, when each unit is coupled, it can be easily assembled and fixed using a coupling hole 11 having a concave-convex shape formed on the base plate 10 and a magnet.

FIG. 7 is a view showing a configuration in which a tripod is coupled to an experimental apparatus for a telescope according to an embodiment of the present invention, and FIG. 8 is a view showing a part of a tripod coupled to the apparatus for testing a telescope according to an embodiment of the present invention. Fig.

Referring to FIGS. 7 and 8, a tripod 40 may be coupled to a lower part of the reflection telescope experimental apparatus 1 according to an embodiment of the present invention.

The tripod 40 is coupled to the lower portion of the base plate 10 to adjust the height and angle of the base plate 10. The tripod 40 may be a tripod that can be equipped with a known camera or a smartphone.

The tripod 40 may be provided with a first handle 41 capable of adjusting the angle of the base plate 10. For example, when the handle 41 is pulled downward, a portion of the base plate 10 on which the sub-mirror unit 30 is mounted can be inclined upward. On the contrary, if the handle 41 is pulled upward, The mounted base plate 10 portion can be inclined upward.

The tripod 40 may be provided with a second handle 42 capable of tilting the base plate 10 in the left and right direction and engaged with the second handle 42 to transmit the rotational force of the second handle 42 And a rotatable member 43 rotatable in the left and right direction may be provided. For example, the end of the second handle 42 and the rotary member 43, which engages with the second handle 42, may be provided with a gear device. More specifically, the gear device may be provided with a threaded gear.

The screw gear formed at the end of the second handle 42 will be referred to as a first screw gear 421 and the rotational member 43 will be described as being the same as the second screw gear 43 as shown in FIG.

For example, when the second handle 42 is rotated to the right, the first screw gear 421 can also be rotated to the right. At this time, the second screw gear 43 engaged with the first screw gear 421 can be rotated to the upper side of the first screw gear 421, so that the base plate 10 can be rotated in the one- It can be tilted. Conversely, when the second handle 42 is rotated in the leftward direction, the first screw gear 421 can also be rotated in the leftward direction. At this time, the second screw gear 43 engaged with the first screw gear 421 can be rotated in the direction of the first screw gear 421, so that the base plate 10 is tilted in the other direction by a predetermined angle .

Therefore, there is an advantage that the base plate 10 can be rotated in four directions within a predetermined angle range by using the first handle 41 and the second handle 42.

Experimental apparatus 1 of the telescope according to the present embodiment is characterized in that the combined focal length is changed while changing the curvature of the sub-mirror 31 by coupling to the sub-mirror unit 30 while changing the sub- Can be confirmed.

In the experimental apparatus (1) of the reflective telescope according to the present embodiment, the light collected by the main mirror 21 is reflected by a convex mirror having a smaller diameter from the front side of the focal point, and the light exiting the main mirror 21 is reflected by the eyepiece lens 34 ). ≪ / RTI > In the case of the Newton-type refracting telescope, the eyepiece 34 was detachably coupled to the sub-mirror unit 30 to observe the light reflected from the minor diameter 31. However, in the case of the Cassegrain-type reflecting telescope and the Gregorian-type reflecting telescope The eyepiece lens can be positioned behind the main mirror unit 20. [

Hereinafter, the operation of the reflection telescope experimental apparatus according to one embodiment of the present invention will be described.

First, the user can engage the base plate 10 with the tripod 40. In the case of carrying out an experiment on a Newtonian reflective telescope, a sub-mirror 31, which is a plane mirror, can be coupled to the sub-mirror unit 30. In the case of carrying out an experiment on a Cassegrain-type reflective telescope, The sub-mirror 31 ', which is a convex mirror, can be coupled. Therefore, there is an advantage in that one device can be used to conduct experiments on Newtonian reflective telescopes, Cassegrain reflective telescopes, and Gregorian reflective telescopes.

When the eyepiece lens 34 is coupled to the minor diameter support portion 32 of the sub-mirror unit 30 when the sub-mirror unit 31 in the form of a flat mirror is coupled to the sub- .

Alternatively, when the sub-mirror unit 30 is provided with the sub-mirrors 31a and 31b in the form of a convex mirror or a concave mirror for carrying out experiments on the Cassegrain-type reflective telescope and the Gregorian reflective telescope, the eyepiece lens 34 And can be positioned behind the main mirror unit 20.

The user can insert and engage the main scanning unit 20 at a desired position in the main scanning unit engaging hole 11 and move the sub-scanning unit 30 along the minor scanning unit guide hole 12, You can control the distance.

The user adjusts the sub-scopes 31 and 31 'by using the fine focus adjusting unit 33 while the sub-scaled unit 30 is fixed at an arbitrary position by adjusting the distance between the main scanning unit 20 and the sub- ) Can be adjusted.

In addition, the height and angle of the base plate 10 can be adjusted by using the tripod 40. The user can tilt the base plate 10 within a predetermined angle range in all directions from top to bottom and left to right using the first and second knobs 41 and 42 provided on the tripod 40. [

1: Reflective telescope experiment device
10: base plate 11: main mirror unit engaging hole
12: minor diameter unit guide hole 20: main mirror unit
21: main mirror 22: main mirror support
23: through hole 30: minor diameter unit
31, < / RTI >: minor diameter 32:
33: fine focus adjustment part 34: eyepiece lens
35: slide member 40: tripod
41: first handle 42: second handle
43: Rotation member 121: Fastening nut
220: Assembly bolt 321: Negative tightening bolt

Claims (6)

A base plate;
A main mirror unit detachably coupled to one side of the base plate and supporting a main mirror of the reflective telescope; And
A sub-mirror unit detachably coupled to the other side of the base plate and supporting a sub-diameter of the reflective telescope;
/ RTI >
At least one of the main scanning unit and the sub-scanning unit is slidably engaged with the base plate and includes a position fixing member for positioning after being slid by a predetermined distance from the base plate,
At least one of the main mirror unit or the sub-mirror unit slidably coupled to the base plate is configured to finely adjust the focus by sliding the main mirror or the sub mirror finely after being fixed to the base plate by the position fixing member, And a focus adjusting unit. The method according to claim 1,
A plurality of main-unit coupling holes are formed on one side of the base plate, the main-unit coupling holes being coupled with the projections of the main-
Diameter unit guide hole is formed on the other side of the base plate so that the screw projection of the sub-diameter unit passes through the guide hole, the sub-diameter unit is slidably engaged along the sub-guide unit guide hole, A reflex telescope test apparatus equipped with fastening nuts. 3. The method of claim 2,
Wherein the protruding portion of the main mirror unit is formed of a magnet, and the main mirror unit coupling hole is formed of iron. 3. The method of claim 2,
The sub-mirror unit includes a slide member having the screw projection on its bottom surface and slidably engaged with the base plate, and a sub-mirror support slidably coupled to the slide member and coupled with the sub-
Wherein the micro-
A sleeve fixed to the slide member,
An operating portion rotatably coupled to the sleeve and moving in a linear direction on the sleeve when the sleeve is rotated at a predetermined angle with respect to the sleeve;
And a spindle coupled to the pneumatic support part at one end and coupled to the manipulation part, the spindle moving in a direction in which the manipulation part moves when the manipulation part is rotated and moved along the sleeve. The method according to claim 1,
Wherein the main mirror is provided with a concave mirror and the minor mirror is provided as any one of a flat mirror, a convex mirror, and a concave mirror,
Wherein the main mirror and the sub mirror are detachably coupled to the main mirror unit and the sub mirror unit. The method according to claim 1,
And a tripod for adjusting a height and an angle of the base plate is coupled to the bottom of the base plate.

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