JPS5910846Y2 - television camera equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a viewfinder for a portable television camera.

Portable television cameras are generally desired to be small, lightweight, and have excellent operability and mobility.

However, conventional portable television cameras do not have sufficient mobility as expected.

In particular, when a cameraman shoots while holding his eyebrows, the field of view of the cameraman is very narrow, and the right side of the viewfinder eyepiece, that is, half of the field of view, is blocked by the TV camera body and is limited to the field of view of only the other eye (left eye). Filming was carried out under limited and adverse conditions.

In addition, as TV camera bodies become smaller and lighter, the center of gravity of TV camera equipment tends to be located in front of the TV camera, that is, on the camera lens side, due to the influence of the camera lens and coil assembly, and the viewfinder is attached directly to the TV camera body. As a result, the center of gravity of the TV camera equipment and the position of the shoulder rest of the TV camera are unbalanced in relation to the body shape of the cameraman at the time of shooting, and when the TV camera is placed on the waste, an excessive load is applied. It rests on the arm, and the positioning of the eyepiece and shoulder rest are not ergonomically considered, which limits the operation and mobility of the portable television camera.

The purpose of the present invention is to provide a television camera device that eliminates the above-mentioned conventional drawbacks, expands the cameraman's field of view during shooting, and is balanced in terms of operation and camera holding. .

The center of gravity of a portable TV camera is generally
Unless there is a battery or an intentional weight balancer on the back side of the television camera body, it is usually located in front of the television camera body, that is, on the lens side, due to the influence of the lens, viewfinder, etc.

Therefore, by separating the viewfinder from the television camera body and protruding forward from at least the front surface of the television camera body via a mounting member such as a handle, the position of the center of gravity of the television camera body and the position of the shoulder rest become equal. Telephone on the cameraman's shoulder. The weight of the camera is balanced, making it easier to obtain a sense of stability when shooting.

In addition, if the cameraman's eyes are placed at a certain distance from the eyepiece of the viewfinder, allowing him to observe the monitor screen and accurately grasp the left and right subjects, the field of view will be wider. This will further improve responsiveness.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view, and numeral 1 indicates a television camera body in which an image pickup tube, an optical system, electrical components, etc. are built-in.

Here, of course, the center line in the direction in which the lens is attached, that is, in the longitudinal direction of the television camera body, is referred to as the vertical axis.

Reference numeral 2 denotes a lens barrel section, which has a built-in plane mirror 13 and is capable of converting the monitor image plane by 90 degrees, and has an integral structure in which an eyepiece lens 14 and an eyepiece section 3 are attached to the lens barrel section 2.

4 is a monitor cathode ray tube, 5 is a camera lens, 6 is a handle, 8 and 12 are mounting screws, and 11 is a viewfinder main body in which the monitor cathode ray tube 4 and its auxiliary electrical parts are built-in.

FIG. 2 is a side view, and the same symbols as in FIG. 1 represent the same elements, so their explanation will be omitted.

9 is a mounting screw, and 10 is a camera lens mounting surface.

First, the mounting position of the viewfinder main body 11 will be explained.

The viewfinder body 11 is at the same height as the upper surface of the television camera body 1 (the surface on which the handle 6 is attached), or at a height above that surface, and the front surface of the television camera body 1 (the camera lens mounting surface 10). ) so that it is mounted integrally with the handle 6 using the mounting screw 12.

In this arrangement, the weight and center of gravity of the camera body 1 with the camera lens 5 attached, the weight and position of the viewfinder with the lens barrel 2 attached, and the center of gravity of the TV camera device, that is, the shoulder rest position of the TV camera, and the eyepiece. Part 3
A weight balance must be established that takes into account the relationship between

The viewfinder main body 11 is installed so that the monitor image plane of the built-in monitor cathode ray tube 4 is perpendicular to the vertical axis of the television camera main body 1. A monitor image can be observed from the eyepiece unit 3 through the eyepiece lens 14 by polarizing the image plane 4 by 90 degrees.

Therefore, the eyepiece 3 is aligned in the same direction as the vertical axis of the television camera body 1.

By configuring as described above, the eyepiece section 3 can be positioned in front of the lens mounting surface 10 of the television camera body 1 and at the same level as or above the upper surface of the body of the television camera body 1. can.

Therefore, by fixing the television camera body 1 on the cameraman's shoulder, the monitor image can be observed from the eyepiece 3 at positions A and B as shown in FIG.

In particular, by observing at position B, the right side of the photographic field of view can be widely seen along with the monitor image, and a wide field of view including the subject can be accurately grasped.

As explained above, according to the present invention, the eyepiece part of the viewfinder is configured to protrude forward from the camera lens mounting surface and to be higher than the top surface of the TV camera body, so that the camera can be placed on the cameraman's shoulder. By equalizing the weight and opening up the right field of vision,
It is possible to provide a portable television camera that improves immediate response during shooting and allows a cameraman to fully demonstrate his functions.

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of the present invention, and Figure 1 is a plan view of the main assembly, 1: TV camera body, 2: Lens barrel, 3: Eyepiece, 4: Cathode ray tube for monitor, 5 :Camera lens, 6
: Handle, 8, 12: Mounting screw, 11: Viewfinder body, 13: Plane mirror, 14: Eyepiece. FIG. 2 is a side view, and the same symbols as in FIG. 1 represent the same elements, so a description thereof will be omitted. 9: Mounting screw, 10: Camera lens mounting surface.

Claims (1)

[Scope of utility model registration request] A viewfinder body having a built-in monitor cathode ray tube is mounted in front of the lens mounting surface of the television camera body and at a position equal to or higher than the top surface of the television camera body in a direction perpendicular to the vertical axis of the television camera body, and further In order to position the eyepiece in a direction perpendicular to the viewfinder body, a lens barrel with a built-in plane mirror is installed between the viewfinder body and the eyepiece, and the viewfinder and eyepiece are connected to the TV camera body. A television camera device characterized by being located at the same level as or higher than the top surface and in front of the lens mounting surface.