KR200231018Y1 - binocular - Google Patents

Abstract

The focus control lever of the binoculars and the try correcting lever are arranged on the same axis, and the objective lens is moved to adjust the diopter angle, thereby simplifying the structure of the eyepiece portion having insufficient space and simplifying the structure. Further, the axial spacing of the left and right optical systems can be narrowed, which leads to an advantage of miniaturization.

Description

Binoculars {binocular}

The present invention relates to a binoculars, and more particularly, to a focus adjustment knob for adjusting a focus of a binoculars and a try correcting knob for correcting a deviation of a try.

In general, a binoculars are a mechanism for obtaining an enlarged image of a subject by having a pair of objective lenses and a pair of eyepieces for observing a subject at a distant place. A pair of objective lenses and eyepieces are provided on the left and right eyes of the user And are mounted on the left and right lens barrels to face each other. When the center axes of the eyepiece and the objective lens do not coincide with each other, a prism is disposed between the eyepiece lens and the objective lens.

Accordingly, the image of the object at a long distance passes through the objective lens, the optical axis is switched by the prism, and is incident on the eyepiece lens so that the user can observe the image of the enlarged object.

Such a binocular structure is disclosed in U.S. Patent No. 5,822,115. In the technique disclosed in the above-mentioned U.S. Patent No. 5,822,115, the objective lens is adjusted to adjust the focus according to the object, and one side of the left and right objective lenses is moved for trial correction, but the focus adjustment knob and the trial correction knob are not coaxial And is diagonally offset from the axis of the focus control lever.

The binoculars described above have a limitation in narrowing the interval between the axes of the left and right optical systems, which makes it difficult to miniaturize the binoculars.

The object of the present invention is to reduce the axial spacing of the left and right optical systems of the binoculars to achieve miniaturization and to simplify the structure and improve the assemblability.

In order to achieve the above object,

A left and right body that forms an appearance;

Right and left eyepieces respectively coupled to the left and right bodies;

Left and right objective lenses respectively coupled to the lens barrel disposed inside the left and right bodies;

Right and left eyepiece prisms coupled between the left and right ocular lenses and the left and right objective lenses;

Focusing means disposed at an intermediate portion between the left and right objective lenses and including a knob for moving the left and right objective lenses in the optical axis direction to adjust a focus;

Correcting means for correcting an attempted deviation by moving the left and right objective lenses relative to each other in the optical axis direction, the focus adjusting means being disposed on the same axis as the knob provided in the focus adjusting means,

To provide a binocular.

FIG. 1 is a perspective view showing an outline of a binoculars for explaining an embodiment according to the present invention,

FIG. 2 is an exploded perspective view of a binocular according to an embodiment of the present invention,

FIG. 3 is an exploded perspective view of the binoculars in explaining the main part of the present invention,

4 is a cross-sectional view of a main part for explaining an operating state according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an exploded perspective view of a binocular according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the binocular according to an embodiment of the present invention. Respectively. In the inside of the above-described bodies 1 and 3, lens barrels 4 and 6 are disposed. Objective lenses 5 and 7 are coupled to the front left and right sides of the lens barrels 4 and 6, And eyepieces 9 and 11 are coupled to the rear sides of the lens units 1 and 3. A focus adjustment knob assembly 13 is rotatably coupled to the eyepieces 9 and 11 at the center of the bodies 1 and 3. A focus adjustment knob assembly 13 is provided at the center of the objective lenses 5 and 7, Is disposed so as to be coaxial with the focus adjustment knob assembly 13 described above.

Between the objective lenses 5 and 7 and the eyepieces 9 and 11, the prism prism assemblies 17 and 19 are coupled to the bodies 1 and 3, respectively. Since the central axes of the objective lenses 5 and 7 and the eyepiece lenses 9 and 11 do not coincide with each other, the images of the eyepiece lenses 9 and 11, which enter through the objective lenses 7 and 9, And the like. Particularly, the above-described objective lenses 5 and 7 are movably coupled in the optical axis direction.

3 is an exploded perspective view for explaining in detail the focal adjustment means for adjusting the focus of the subject and the structure of the trial correction means for correcting the trial deviation.

First, the focus adjustment means is rotatably coupled to the body 1, 3 with a focus adjustment knob assembly 13. The focus adjustment knob assembly 13 includes a focus adjustment knob 13a and an extension portion 13b formed in the center of the focus adjustment knob 13a in the direction of the optical axis. The extended portion 13b is screwed to the barrel supporting shaft 21. The barrel supporting shaft 21 is provided with a threaded portion on the outer periphery of the extended portion 13b. The barrel support shaft 21 is disposed in the direction of the optical axis, and a groove is formed in the center of the barrel support shaft 21 in the longitudinal direction, and a thread is formed on the inner circumferential surface of the groove. And is fixedly coupled to the left objective lens 5 (refer to Fig. 3) on the outer circumferential surface of the barrel support shaft 21. [ The right objective lens 7 (refer to FIG. 3) is connected to the trial correction connector 23, and the trial correction connector 23 is screwed to the barrel support shaft 21. [ Therefore, the left and right objective lenses 5 and 7 are moved in the optical axis direction by the rotation of the focus adjusting lever 13a.

The trial correction means includes a trial correction knob assembly 15 rotatably coupled to the bodies 1 and 3. The trial correction knob assembly 15 includes a trial correction knob 15a and a trial correction knob 15a And a spline extension 15b extending from the center axis of the spline extension 15b. And the spline extension 15b is engaged with the above-described trial correction connector 23. [ The trial correction connector 23 is formed with grooves through which the spline extending portion 15a can be inserted in the longitudinal direction at its central portion, and threads are formed on the outer circumferential surface so as to be screwed to the barrel supporting shaft 21. [ A feed groove 23a is formed on the outer periphery of the trial correction connector 23 so as to be slidably engaged with the objective lens barrel feed joint 7a connected to the barrel 6 of the right objective lens 7. Therefore, the objective lens barrel transfer connecting portion 7a is slidably engaged with the feed groove 23a.

Focus adjustment and trial correction of the binoculars thus constructed will be described in detail with reference to FIG.

First, when the user of the binoculars rotates the focus adjustment knob 13a in the direction of the arrow, the binoculars are rotatably fixedly coupled to the bodies 1 and 3 so that they are rotated in place. The extension portion 13b is rotated in accordance with the rotation of the focus adjustment knob 13a and the barrel support shaft 21 screwed with the extension portion 13b is rotated in accordance with the rotation of the extension portion 13b, Direction. As the barrel supporting shaft 21 is fed, the left objective lens 5 connected to the barrel supporting shaft 21 is also moved in the optical axis direction. In addition, since the trial correction connector 23 is screwed with the lens barrel supporting shaft 21 and moves together in the optical axis direction, the right objective lens 7 connected to the trial correction connector 23 is also moved in the optical axis direction. At this time, the left and right objective lenses 5 and 7 are conveyed by the same distance according to the degree of conveyance of the barrel support shaft 21,

The trial correction is performed by rotating the trial correction lever 15a. When the trial correction lever 15a is rotated, the spline extending portion 15b is rotated, and the trial correction connector 23 is rotated and moved in the optical axis direction. At this time, the trial correction connector 23 makes a relative movement with respect to the barrel support shaft 21. [ Therefore, while the objective lens barrel feeder connecting portion 7a is moved while the trial correction connector 23 moves, and the left objective lens 7 connected thereto is moved relative to the right objective lens 5, adjustment of the attempt is made.

Therefore, in the present invention, the focal adjustment knob 13a and the trial correction knob 15a are disposed on the same axis to enable the focal adjustment and trial correction.

The present invention can simplify the structure of the eyepiece portion where the space is short by correcting the attempt deviation by moving the objective lens, and simplify the structure by arranging the focus control lever and the try correcting lever on the coaxial axis. Further, the axial spacing of the left and right optical systems can be narrowed, which leads to an advantage of miniaturization.

Claims (3)

A left and right body that forms an appearance; Right and left eyepieces respectively coupled to the left and right bodies; Left and right objective lenses respectively coupled to the lens barrel disposed inside the left and right bodies; Right and left eyepiece prisms coupled between the left and right ocular lenses and the left and right objective lenses; Focusing means disposed at an intermediate portion between the left and right objective lenses and including a knob for moving the left and right objective lenses in the optical axis direction to adjust a focus; Correcting means for correcting an attempted deviation by moving the left and right objective lenses relative to each other in the optical axis direction, the focus adjusting means being disposed on the same axis as the knob provided in the focus adjusting means; The binoculars include. 2. The apparatus according to claim 1, A focusing knob rotatably coupled to the left and right bodies, and a focusing knob assembly extending in a direction of an optical axis at a central portion of the focusing knob and having an extension formed on the outer periphery thereof; A barrel support shaft threadably engaged with the extension of the focusing knob assembly so as to be movable in an optical axis direction and connected to the left and right objective lenses; . 2. The apparatus of claim 1, wherein the trial correction means A trial correction knob rotatably coupled to the left and right bodies and a spline extension knob extending in a direction of an optical axis at a center of the trial correction knob; A trial correction connector coupled to a spline extension of the trial correction knob and rotated by the spline extension, coupled to a left or right objective lens on one side, and threaded on an outer periphery thereof and screwed to the lens barrel support shaft; .