JPH04157417A - Fine controlling device for telescope - Google Patents

Abstract

PURPOSE:To finely move a telescope cylinder continuously and in a broad range in both vertical and horizontal directions by providing a horizontal gear mechanism, which finely rotates around a vertical shaft relatively, and a vertical gear mechanism, which finely rotates a horizontal shaft leaving it connected to the vertical gear mechanism. CONSTITUTION:When a rotary base 3 is rotated in the state that a vertical shaft 6 is rotatable, a telescope cylinder 1 is roughly moved crosswise, on the other hand, since the rotary base 3 is finely rotated due to a horizontal gear mechanism 10 in the state that the rotation of the vertical shaft 6 is locked, the telescope cylinder 1 is finely moved crosswise. In this fine movement, since the horizontal mechanism 10 rotates the rotary base 3 around the vertical shaft in the whole periphery, the continuous and broad range crosswise fine movement is possible. Since when a bearer 2 is rotated together with a horizontal shaft 9, the telescope cylinder is roughly moved in the vertical direction, and when a perpendicular gear mechanism 30 and the horizontal shaft 9 are connected to each other, the horizontal shaft 9 is finely rotated, the vertical fine movement of the telescope cylinder 1 is performed and in the same way, the telescope cylinder 1 can continuously and finely be moved crosswise in a broad range. This constitution makes it possible to move the telescope cylinder finely in both vertical and horizontal directions in a simple composition.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a device for rotating the lens barrel of a telescope in the vertical and horizontal directions, and is capable of continuously performing fine movements in these directions over a wide range. This paper relates to a telescope lens barrel fine movement device.

[Conventional technology]

FIG. 3 shows a conventional device for slightly moving the lens barrel of a telescope in the vertical direction.

A telescope lens barrel 100 is supported on a pedestal 101, and the pedestal 10
1 is attached to a rotating base 102 so as to be rotatable in the vertical direction. The rotation base 102 is rotatably attached to a support member (not shown) such as a tripod, and the rotation of the base 102 changes the field of view of the lens barrel 100 in the left-right direction.

A fine movement device 110 is attached to the rotating base 102 and the lens barrel 100.
However, the hooks are passed diagonally.

The fine movement device 110 includes a vibrator III which is rotatably supported on the rotary base 102 at the lower end, and a vibrator 111 at the lower end.
The rod 112 is inserted into the lens barrel 100 and reaches the upper part of the lens barrel 100. Lot 112 has a threaded part 113 in the middle part.
This threaded portion 113 is connected to a dial 114 attached to the vibrator 111. Also, lot 1
The upper part of 12 is the slide guide 1 provided in the lens barrel 100.
A screw 116 is attached to the slide guide 115, and the slide guide of the rod 112 is locked by tightening the screw 16.

In such a device, vertical movement of the lens barrel 100 is achieved by loosening the screw 116 and rotating the lens barrel 100 in the vertical direction with the rod 112 freely sliding with respect to the slide guide 115. It is possible. Then, by tightening the screw 116 and locking the slide of the rod 112, by rotating the dial +14, the rod 112 moves slightly forward and backward with respect to the vibrator 111, so that slight movement in the vertical direction can be performed.

FIG. 4 shows a conventional device for slightly moving the lens barrel 100 in the left-right direction. The lower part of the pedestal 101 that supports the lens barrel 100 is pivotally supported by a support arm 120, and a fine movement case 121 is attached to this support arm 120. In addition, the support arm 12
The lower part of 0 is a cylindrical shaft part 120a, and the shaft part 1
20a is rotatably inserted into the rotary cylinder 122.

Furthermore, the lower part of the shaft portion 120a and the rotary cylinder 122 is connected to the base 12.
It is rotatably inserted and supported within 3.

Inside the fine movement case 121 is a press plate 12 from a rotary cylinder 122.
4 is inserted, and a pressing rod 125 and a threaded rod 126 are provided to sandwich this pressing plate 124. The pressing rod 125 is urged by a spring 127 so as to come into contact with the pressing plate 124 . On the other hand, the threaded rod 126 is screwed into the fine movement case 121, and its tip is in contact with the pressing plate 124. This rod 1
26 is moved forward and backward within the fine movement case +21 by rotating the handle 128, and this movement causes the support arm 120 to be slightly rotated in the horizontal direction.

In the figure, 129 is a lock screw that connects and releases the base 23 and the rotary cylinder 122. In this device, when the lock screw 129 is loosened, the rotating cylinder 122 and the support rod 1 are connected to each other.
20 and rotates integrally with the base 123,
Coarse movement of the lens barrel 100 in the left and right direction can be performed.

On the other hand, when the lock screw 129 is tightened, the rotating cylinder 122
or fixed to the base 123, and in this state the handle 128
By rotating the threaded rod 126, the threaded rod 126 moves forward and backward, so that the support arm 120 can be slightly rotated relative to the rotating barrel 122, thereby allowing the lens barrel 100 to be slightly moved in the left-right direction.

[Invention or problem to be solved]

The conventional devices shown in FIGS. 3 and 4 both have a limited range of fine movement. That is, the vertical fine movement range of the conventional device shown in FIG. 3 is determined by the length of the threaded portion 113 of the rod 112, and the horizontal fine movement range of the conventional device shown in FIG. As determined by

In addition, with conventional devices, it is not possible to make fine movements in either the vertical or horizontal directions, and in order to make fine movements in both the vertical and horizontal directions, it is necessary to combine the structure shown in Figure 3 with the structure shown in Figure 4. This has the disadvantage that not only is it complicated, but also the operability is poor.

The present invention has been made with these circumstances in mind, and it is possible to perform fine movements of the lens barrel in the vertical and horizontal directions, and also to perform fine movements in these directions continuously over a wide range. The purpose is to provide a telescope chain micro-motion device.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a vertical shaft attached to a support member so as to be rotatable and lockable; a rotating base attached to the support member so as to be rotatable integrally with and relative to the vertical axis; a horizontal gear mechanism that connects the rotary base to the rotary base and relatively slightly rotates the rotary base around the vertical axis while the vertical axis is rotationally locked; a horizontal shaft rotatably attached to the rotary base; and a telescope lens barrel. A pedestal that supports the horizontal shaft and rotates integrally with the horizontal shaft, and a vertical gear mechanism that can be connected to and disconnected from the horizontal shaft and that slightly rotates the horizontal shaft while connected to the horizontal shaft. It is characterized by the fact that it is equipped with

[Effect]

In the above configuration, when the rotating base is rotated while the vertical axis is rotatable, coarse movement of the lens barrel in the left and right direction is performed.
When the rotation of the vertical axis is locked, the rotation base is slightly rotated by the horizontal gear mechanism, so that the lens barrel is slightly moved in the left and right direction. In this fine movement, the horizontal gear mechanism rotates the rotation base around the vertical axis over its entire circumference, so that fine movement in the left and right direction can be continuously performed over a wide range.

Furthermore, when the pedestal is rotated together with the horizontal axis, the lens barrel is roughly moved in the vertical direction. When the vertical gear mechanism and the horizontal shaft are connected, the horizontal shaft rotates slightly, thereby causing the lens barrel to move slightly in the vertical direction. In this fine movement, the vertical gear mechanism rotates the horizontal axis over almost the entire circumference, so that fine movement in the vertical direction can be continuously performed over a wide range.

〔Example〕

Hereinafter, the present invention will be specifically explained with reference to illustrative examples.

FIG. 1 is a sectional view of a main part of an embodiment of the present invention, and FIG. 2 is a side view of the whole. In these figures, the lens barrel l of the telescope is supported on a pedestal 2, and the pedestal 2 is attached to a rotating base 3, and the rotating base 3 is further attached to the head 5 of a tripod 4, which serves as a supporting member. . in this case,
The pedestal 2 changes the field of view of the lens barrel 1 in the vertical direction by its rotation, and the rotating base 3 changes the field of view of the lens barrel 1 in the lateral direction by its rotation.

A rotating base 3 that changes the field of view in the left-right direction is attached to a head 5 of a tripod 4 so as to rotate within a range of 360 degrees in a horizontal plane.
As shown in the figure, a vertical shaft 6 is provided. The vertical shaft 6 is inserted into the head 5 so as to rotate, and is connected to the rotating base 3.
The threaded part at the upper end passes through the center part of the rotating base 3, and a nut 7 is screwed into the through end to rotate integrally with the rotating base 3 or the vertical shaft 6 and rotate the vertical axis. It is designed to rotate relatively around 6.

These rotations are caused by the rotation base 3 by the horizontal gear mechanism 10.
This is done by connecting the vertical shaft 6 and the like. The horizontal gear mechanism 10 includes a circular gear 11 formed by partially extending the upper part of the vertical shaft 6 in the circumferential direction, and a worm gear 12 that meshes with the circular gear 11. The shaft is supported by a bracket 13 that hangs down from the rotation base 3.

This horizontal gear mechanism IO simply connects the rotation base 3 and the vertical shaft 6 when the vertical shaft 6 is rotatable, and since the rotation base 3 rotates integrally with the vertical shaft 6, the lens barrel 10
Coarse movement in the left and right direction is possible. On the other hand, vertical axis 6
In the rotation locked state, the horizontal gear mechanism 10 acts to slightly rotate the rotation base 3 around the vertical axis 6, thereby causing the lens barrel l to be slightly moved in the left and right direction.

Such fine rotation of the rotating base 3 can be achieved by rotating the worm gear 12.
This worm gear 1
In order to rotate the worm gear 2, the gear shaft of the worm gear 12 is pulled out of the rotating base 3, and a handle 14 is attached to the pulled-out end (see FIG. 2).

Further, the rotation of the vertical shaft 6 is locked by connecting the vertical shaft 6 with the head 5 of the tripod, and in order to perform this connection, the head 5 has a lock screw 8 whose tip abuts on the vertical shaft 6. or installed.

A pedestal 2 that changes the field of view in the vertical direction is attached to such a rotating base 3. The rotating base 3 has a central portion extending upward to form an arm portion 3a, and a horizontal shaft 9 is rotatably mounted on the arm portion 3a.

The pedestal 2 is inserted through the horizontal shaft 9, and the pedestal 2 and the horizontal shaft 9 are connected by screwing the set screw 21 between the pedestal 2 and the horizontal shaft 9, and the pedestal 2 is connected to the horizontal shaft 9. Rotates integrally with 9. The horizontal shaft 9 passes through the left end portion of the arm portion 3a of the rotating base 3, and a vertical gear mechanism 30 is provided at the penetrating portion.

The vertical gear mechanism 30 includes a sleeve 31 inserted through the horizontal shaft 90, a circular gear 32 formed by partially extending the sleeve 31 in the circumferential direction of the horizontal shaft 9, and the circular gear 32. The worm gear 33 meshes with the worm gear 33.

The worm gear 33 is rotatably supported by a bracket 22 attached to the side surface of the arm portion 3a of the rotating base 3, and its gear shaft is connected to the gear shaft of the worm gear 12 of the horizontal gear mechanism 10 on the rotating base 3 side. It extends in the same direction, and a handle 34 is attached to the end of this extension.

This vertical gear mechanism 30 can be connected to and released from the horizontal shaft 9, and when the ohmic gear 33 rotates while connected to the horizontal shaft 9, the horizontal shaft 9 slightly rotates, so that the pedestal 2 The lens barrel 1 is rotated slightly in the vertical direction. On the other hand, when the horizontal shaft 9 is disconnected from the horizontal shaft 9, the horizontal shaft 9 rotates freely, so the lens barrel 1 can be roughly moved in the vertical direction via the pedestal 2. In order to connect and release the connection between the horizontal shaft 9 and the vertical gear mechanism 30, the sleeve 31 has a tip screw 35 which abuts against the horizontal shaft 9 and is screwed into the sleeve 31.

Next, the operation of the above embodiment will be explained.

■ When the coarse and fine movement joint screws 35 in the vertical direction of the lens barrel are loosened to disconnect the vertical gear mechanism 30 and the horizontal shaft 9, the horizontal shaft 9 is free to rotate relative to the arm portion 3a of the rotation base 3. becomes. Therefore, the lens barrel 1 supported by the horizontal shaft 9 via the pedestal 2 can be roughly moved in the vertical direction.

On the other hand, when the joint screw 35 is tightened, the vertical gear mechanism 3
0 and the horizontal axis 9, coarse movement of the lens barrel 1 is stopped. In this state, when the handle 34 is rotated, the ohmic gear 33 rotates, the circular gear 32 rotates at a slow speed, and the horizontal shaft 9 rotates integrally. Therefore, the lens barrel l can be slightly moved in the vertical direction. Since this fine movement is performed by rotation of the circular gear 32 of the vertical gear mechanism 30, the horizontal shaft 9 can rotate over a wide range. For this reason, it is possible to perform continuous fine movements in the vertical direction over a wide range.

■ When the coarse and fine movement lock screws 8 in the horizontal direction of the lens barrel are loosened, the vertical shaft 6 is free to rotate relative to the three-sleeve head 5, and the horizontal gear mechanism 10 moves the vertical shaft 6 is connected to. The rotating base 3 can also be freely rotated relative to the head 5. Therefore, by rotating the rotating base 3 integrally with the vertical shaft 6, coarse movement of the lens barrel l in the left and right direction can be performed.

On the other hand, when the lock screw 8 is tightened, the rotation of the vertical shaft 6 is locked. When the handle 14 is rotated in this state, the worm gear 12 is rotated by the circular gear 1 whose rotation is locked.
1 at a slow speed, the rotating base 3 rotates slowly together with the worm gear 12. Therefore, the lens barrel 1 can be slightly moved in the left and right direction. This fine movement is performed by relative rotation of the rotating base 3 around the vertical shaft 6 formed with the circular gear 11, so that the rotating base 3 can rotate over a wide range. Therefore, it is possible to perform fine movements in the left and right directions continuously and over a wide range.

With the above configuration, it is possible to perform fine movements of the lens barrel j in both the vertical and horizontal directions, the operability of these fine movements is improved, and the structure is simple.

〔Effect of the invention〕

As explained above, in the present invention, when the rotation of the vertical axis is locked, the rotating base can be slightly rotated by the horizontal gear mechanism to perform slight horizontal movement of the lens barrel, and the rotating base rotates around the vertical axis. , the micro-tremors can be made continuously over a wide range. In addition, by connecting the horizontal shaft and the vertical gear mechanism, it is possible to make small vertical movements of the lens barrel, and since the horizontal shaft can rotate almost all the way around, it is possible to make these small movements continuously and over a wide range. can.

Furthermore, the present invention allows fine movement of the lens barrel in both vertical and horizontal directions with a simple configuration and with ease.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of the lens barrel fine movement device of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a side view of a conventional device that performs fine movement in the vertical direction, and Fig. 4 is a side view in the horizontal direction. FIG. 2 is a partially cutaway side view of a conventional device that performs micro-movement. l...Lens barrel 2...Base 3...Rotation base 4...Tripod 5...Tripod head (supporting member) 6...Vertical axis 9...Horizontal axis lO... Horizontal gear mechanism 20...Vertical gear mechanism

Claims (1)

[Claims] (1) a vertical shaft attached to a support member so as to be rotatable and lockable; a rotation base attached to the support member so as to rotate integrally with and relative to the vertical axis; and the vertical shaft and rotation base are connected; a horizontal gear mechanism that relatively slightly rotates a rotating base around the vertical axis while the vertical axis is locked in rotation; a horizontal shaft that is rotatably attached to the rotating base; and a horizontal gear mechanism that supports the lens barrel of the telescope and is integrated with the horizontal axis. A cradle that rotates,
A lens barrel fine movement device for a telescope, comprising a vertical gear mechanism that can be connected to and released from the horizontal shaft and finely rotates the horizontal shaft while connected to the horizontal shaft.