JP3050014U - Connection mechanism between magnifying optical machine and camera holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect a camera lens close to an eyepiece of a magnifying optical machine while connecting a magnifying optical machine to a camera while a light-blocking sleeve is fitted in a lens barrel eyepiece of the magnifying optical machine. A sleeve is externally slidably fitted to an eyepiece tube portion of the magnifying optical machine. The camera holder has a cylindrical body integrally fitted on the sleeve of the eyepiece barrel on the front surface of the lens hole of the frame, and a positioning notch is formed at the leading edge of the cylindrical body. In the magnifying optical machine, a positioning projection is integrally formed with a positioning notch of a cylindrical portion of the camera holder fitted to the sleeve. The sleeve is slid toward the body casing side of the optical machine so that the positioning protrusion of the optical machine and the positioning cutout of the camera holder engage with each other, and the barrel of the camera holder is fitted to the sleeve of the eyepiece barrel of the optical machine. .

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a coupling mechanism for detachably attaching a camera holder for holding a camera to an eyepiece section of a magnifying optical machine such as a binocular or a magnifying glass.

[0002]

[Technical background of the invention]

 When a magnified image obtained by a magnifying optical machine such as a binocular or a magnifying glass is photographed by a camera, it is necessary to connect a camera holder to a lens barrel eyepiece of the magnifying optical machine.

[0003] On the other hand, a flexible light-blocking sleeve such as rubber must be externally fitted to the eyepiece of the magnifying optical machine to block light from between the eyepiece and the eyes when looking into the lens. is there.

[0004]

[Problems to be solved by the invention]

 However, when a camera is connected to the eyepiece of the magnifying optical machine, if the eyepiece of the magnifying optical machine and the lens of the camera are not close to each other, the field of view of the picture will be diminished. When connecting, the sleeve must be removed. Removing and attaching such a sleeve is not only troublesome in itself, but also may cause the removed sleeve to be lost.

Further, conventionally, since the lens barrel eyepiece cylinder of the magnifying optical machine and the coupling cylinder of the camera holder are fitted to each other inside and outside the cylinder, the coupled camera holder is easily tilted and the camera can be positioned in the normal position. It is difficult to hold the device in a position (for example, a horizontal position).

Accordingly, a first object of the present invention is to connect a magnifying optical machine to a camera, and to connect a camera lens to the magnifying optical machine with a light-blocking sleeve fitted in a lens-barrel eyepiece section of the magnifying optical machine. An object of the present invention is to provide a mechanism that can be connected in close proximity to a vehicle.

A second object of the present invention is to provide the above-mentioned connecting mechanism in which a camera holder is always connected to a magnifying optical machine in a correct position and a correct posture.

In order to achieve the first object, the present invention provides a sleeve which is slidably fitted to an eyepiece portion of a lens barrel of a magnifying optical machine such as a telescope or a magnifying glass; A camera holder having a cylindrical body integrally fitted on the sleeve of the eyepiece barrel on the front surface of the lens hole of the frame to be formed, and an axial positioning notch formed at a distal end edge of the cylindrical body; And a positioning projection formed integrally with the lens barrel frame or main body casing of the optical machine and engaging with a positioning notch of the cylindrical portion of the camera holder externally fitted to the sleeve.

In order to achieve the second object, the present invention provides a sleeve which is slidably fitted to an eyepiece part of a lens barrel of a magnifying optical machine such as a telescope or a magnifying glass; A camera holder having a cylindrical body integrally fitted on the sleeve of the eyepiece barrel on the front surface of the lens hole of the frame to be formed, and an axial positioning notch formed at a distal end edge of the cylindrical body; A positioning projection formed integrally with the lens barrel frame or main body casing of the optical machine and engaging with a positioning cut of the cylindrical portion of the camera holder externally fitted to the sleeve; The positioning projection of the machine is engaged only in the horizontal position of the camera holder.

[0010]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The figure illustrates a binocular telescope as an example of the magnifying optical machine, and shows an embodiment in which a camera holder holding a photographing camera is connected to one of the eyepieces of the telescope.

As shown in FIGS. 1 and 2, a binocular telescope (hereinafter, referred to as binoculars) 1 has a pair of left and right lens barrels 3 in a main body casing 2, and an eyepiece of each lens barrel 3. The portion 4 is disposed so as to protrude toward the near side of the main body casing 2. The eyepiece 4 of the lens barrel 3 is provided with a light-blocking sleeve 6 protruding forward to block light from between the eyepiece 5 and the eyes.

On the other hand, the camera holder 7 is formed by integrally forming a cylindrical body 9 on the front surface of a frame 8 for holding a photographing camera, and the cylindrical body 9 is connected to the eyepiece 4 of the binoculars 1. Then, a camera (not shown) held in the storage section 10 of the frame 8 is attached to the binoculars 1. In the present invention, the cylindrical body 9 of the camera holder 7 is externally fitted via the sleeve 6 while the light-shielding sleeve 6 is fitted to the eyepiece 4 of the lens barrel 3, and the camera is attached to the eyepiece 5 of the binoculars 1. This allows the lenses 11 to be closely connected.

For this purpose, a light-shielding sleeve 6 is slidably fitted to the eyepiece tube portion 4 of the lens barrel 3, and the sleeve 6 is moved from the projecting position in FIG. 1 to the retracted position in FIG. Is displaced to a position aligned with the end of the eyepiece tube section 4. In the embodiment shown in the figure, as the sliding means of the light-shielding sleeve 6, the outer peripheral wall of the eyepiece tube part 4 and the inner peripheral wall of the sleeve 6 are screw-engaged. It moves forward and backward along the cylindrical portion 4.

Thus, when the camera holder 7 is connected to the lens barrel 3 of the binoculars 1, as shown in FIG. 2, the light-shielding sleeve 6 is rotated backward and its protruding end is aligned with the tip of the eyepiece tube 4. Then, the cylindrical body 9 of the camera holder 7 is fitted to the outside of the sleeve 6. In this way, the camera holder 11 is held in the housing 10 of the camera holder 7 with the sleeve 6 attached to the lens barrel eyepiece 4, and the camera holder 11 approaches the eyepiece 5 of the binoculars 1. 7 is connected to the eyepiece 4 of the binoculars 1.

Since the eyepiece tube portion 4 of the binoculars 1 and the tube portion 9 of the camera holder 7 are fitted inside and outside with a cylindrical body, when the camera holder 7 is fitted into the binoculars 1 fixed in position with a tripod or the like, contact is made. The angle of the camera holder 7 with respect to the binoculars 1 may change due to the impact of the camera or the center of gravity of the camera.

In order to solve this problem, in the present invention, a notch 12 for positioning in the axial direction is formed at the distal end edge of the cylindrical portion 9 of the camera holder 7, and the binoculars 1 are provided with the camera holder 7. A projection 13 for positioning is formed at a position opposed to the notch 12, and when the barrel 9 of the camera holder 7 is fitted to the eyepiece barrel 4 of the binoculars 1, the projection 13 of the binoculars 1 and the camera holder 7 The notch 12 is engaged to lock the rotation of the camera holder 7.

The cuts 12 and the projections 13 may be located anywhere as long as the camera holder 7 is held at a correct position (correct posture).

In the binocular telescope 1 of the embodiment shown in the drawings, racks 14 and 14 integrated with the pair of barrels 3 and 3 are pinion 15 so that the distance between the pair of barrels 3 and 3 can be adjusted according to the eye width. By operating the rotary knob 16 of the pinion 15, the pair of lens barrels 3, 3 approach and separate from each other along the guide 17 while maintaining the parallelism. In a binocular telescope having such a sliding eye width adjusting mechanism, the positioning projection 13 is formed integrally with the frame of the lens barrel 3 as shown in the figure. In this case, a notch 17 is formed in the main body casing 2 of the binoculars 1 so as not to hinder the lateral movement of the projection 13.

On the other hand, in the case of fixed binoculars in which the pair of lens barrels 3 do not approach or separate from each other, the positioning projections 13 may be formed integrally with the main body casing 2 of the binoculars 1.

In the embodiment shown in the drawings, binoculars are exemplified as the magnifying optical machine, but the present invention can be applied to a single-lens telescope and other magnifying glasses in common.

[0021]

[Effect] In the present invention, since the sleeve is slidably fitted to the eyepiece of the lens barrel, it can be used as a conventional light-shielding sleeve, and the camera holder can be connected while the sleeve is held at the retracted position. There is no need to attach or remove the sleeve when connecting. Therefore, the connecting operation is simplified and there is no risk of losing the sleeve.

Further, since the camera holder is always connected to the correct posture by the engagement between the positioning notch and the projection, there is no possibility that the image of the photograph is inclined.

[Brief description of the drawings]

FIG. 1 is an exploded cross-sectional view of a magnifying optical machine and a camera holder according to the present invention.

FIG. 2 is a cross-sectional view of the connection between the magnifying optical machine and the camera holder according to the present invention.

FIG. 3 is a front view of the magnifying optical machine according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Binocular telescope 2 ... Main body casing 3 ... Lens tube 4 ... Eyepiece tube part 5 ... Eyepiece lens 6 ... Light shielding sleeve 7 ... Camera holder 8 ... Frame body 9 ... Cylindrical body part 10 ... Storage part 11 ... Camera lens 12 ... Cut 13 ... Projection 14 ... Rack 15 ... Pinion 16 ... Rotary knob 17 ... Guide

[Procedure amendment]

[Submission date] February 5, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

Claims (2)

[Utility model registration claims] 1. A sleeve slidably fitted to an eyepiece portion of a lens barrel of a magnifying optical machine such as a telescope or a magnifying glass; and a front surface of a lens hole of a frame body for mounting a camera body. A camera holder integrally having a cylindrical portion fitted to the sleeve and having an axial positioning notch formed at a distal end edge of the cylindrical portion; and being integrally formed with a lens barrel frame or a main body casing of the magnifying optical machine. A positioning projection which engages with a positioning notch in a cylindrical portion of the camera holder externally fitted to the sleeve;
Coupling mechanism for magnifying optical machine and camera holder characterized by having A sleeve which is slidably fitted to an eyepiece portion of a lens barrel of a magnifying optical machine such as a telescope or a magnifier; and a sleeve of the eyepiece portion provided on a front surface of a lens hole of a frame for mounting a camera body. A camera holder integrally having a cylindrical portion fitted to the sleeve and having an axial positioning notch formed at a distal end edge of the cylindrical portion; and being integrally formed with a lens barrel frame or a main body casing of the magnifying optical machine. A positioning projection which engages with a positioning notch in a cylindrical portion of the camera holder externally fitted to the sleeve;
And a coupling mechanism between the magnifying optical machine and the camera holder, wherein the positioning notch of the camera holder and the positioning protrusion of the magnifying optical machine are engaged only at the horizontal position of the camera holder.