Viewfinder for video camera

Abstract

To improve convenience and comfort.SOLUTION: According to the present invention, the tension adjustment mechanism is attached to the movable portion of the viewfinder, the HDMI or SDI video can be input, and the input is switched by the input signal switch or the video is switched based on the signal of the return switch. An LED light is attached to the bottom part, and the LED light is adjusted by an appropriate switch.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a viewfinder for a video camera used in a video camera device. [Background technology]

[0002] When shooting with a video camera, the cameraman uses the text and LED lamps displayed on the viewfinder image display or its periphery to understand the necessary information, such as the shooting status, VTR mode, remaining battery and recording media capacity, etc. The cameraman adjusts the position and movable parts of the viewfinder as needed to find a style that is easy to use. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-27294 Summary of the Invention [Problem to be solved by the invention]

[0004] Viewfinders generally have a fixed torque for angle adjustment, and if the internal rotating shaft becomes loose, it may no longer be possible to fix it. Furthermore, the internal structure of the viewfinder itself is specialized depending on the manufacturer, and is not universal. Today, with the use of HDMI and SDI video signals, there is an urgent need to adapt.

[0005] Based on the above circumstances, the present invention has been filed in order to improve convenience and comfort. [Means for solving the problem]

[0006] According to the present invention, the following inventions are provided. [1] A viewfinder for a video camera, comprising a viewfinder body and an eyepiece, and a tension adjustment mechanism that moves the movable part of the eyepiece up and down. [2] The viewfinder for a video camera according to [1], which has an input panel that allows changing the input panel for the viewfinder video input signal. [3] A viewfinder for a video camera as described in [1] or [2], further comprising an LCD monitor, capable of inputting two or more systems of viewfinder video input signals, and capable of separately displaying different video signals on the video display section of the eyepiece. [4] A viewfinder for a video camera according to any one of [1] to [3], which can input two or more systems of viewfinder video input signals and has the function of switching the image displayed on the video display unit of the eyepiece. [5] A viewfinder for a video camera according to any one of [1] to [4], which has a bottom LED light at the bottom of the viewfinder body and a selector switch that turns on the light on the viewfinder in conjunction with or independent of the TALLY signal. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view of a viewfinder for a video camera according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a front view of a viewfinder for the video camera of FIG. [Figure 3] FIG. 2 is a right side view of the viewfinder for the video camera of FIG. 1. [Figure 4] FIG. 2 is a plan view of a viewfinder for the video camera of FIG. 1. [Figure 5] FIG. 2 is a rear view of the viewfinder for the video camera of FIG. 1. [Figure 6] FIG. 2 is a bottom view of the viewfinder for the video camera of FIG. 1. [Figure 7] 2 is a perspective view of the viewfinder for the video camera of FIG. 1 as seen from another angle. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] A video camera viewfinder according to a first embodiment of the present invention will be described below with reference to FIGS.

[0009] The viewfinder for a video camera of this embodiment comprises a viewfinder body A and an eyepiece body B. The eyepiece body B is equipped with a focus adjustment ring C, a lens D, and an eyepiece cover E. The user typically places their eye close to the eyepiece cover E and checks the image magnified by the lens D. When in use, the angle of the eyepiece B is adjusted, and depending on the application, the user may lower the eyepiece B toward the user by approximately 135° from vertical using the metal adjustment bracket Bc. At the joint between the viewfinder body A and the eyepiece B, the viewfinder A has a rotation axis Ad, and the eyepiece B has a rotating base Bb. A tension adjustment screw Ba is attached to the rotating base Bb, and the tension for angle adjustment is adjusted by tightening the tension adjustment screw Ba. In this way, a tension adjustment mechanism is realized that moves the movable part of the eyepiece B up and down. Description of Claim 1

[0010] The viewfinder body A has a switch panel Aa, which has a PEAKING switch Aa1, CONTRANST switch Aa2, BRIGHT switch Aa3, MARKER switch Aa4, ZEBRA switch Aa5, TALLY switch Aa6, input selector switch Aa7, and MENU switch Aa8. The input selector switch Aa7 switches between input standards such as HDMI and SDI, and displays the image on the image display unit of the eyepiece B. In this way, the switch panel Aa functions as an input panel that can change the viewfinder image input signal input. Description of Claim 2

[0011] The viewfinder main body A has a connector panel Ac, which has an HDMI connector Ac1, a lens return connector Ac2, a BNC connector Ac3, and a service connector Ac4. Two or more viewfinder video input signals can be input through these connectors. In addition, different video signals such as video return signals can be displayed separately on the video display section of the video eyepiece through the HDMI connector Ac1, lens return connector Ac2, and BNC connector Ac3. Description of Claim 3

[0012] A camera lens is connected to the lens return connector Ac2, and a return switching signal sent from the camera lens is received from the lens return connector Ac2, and the image displayed on the image display unit of the eyepiece B is switched. Description of Claim 4

[0013] The bottom LED light Ae is located on the bottom of the viewfinder body and is controlled by the LED switch Ae1. The LED switch Ae1 has the following functions: the bottom LED light Ae lights up only when a tally signal is received, the bottom LED light Ae lights up only when no tally signal is received, the bottom LED light Ae lights up regardless of whether the tally signal is on or off, or the bottom LED light Ae does not light up. Description of Claim 5 [Explanation of symbols]

[0014] A Viewfinder body Aa switch panel Aa1 PEAKING switch Aa2 CONTRANST switch Aa3 BRIGHT switch Aa4 MARKER switch Aa5 ZEBRA Switch Aa6 TALLY switch Aa7 Input selector switch Aa8 MENU switch Ab TALLY display area AC Connector Panel Ac1 HDMI Connector Ac2 Lens Return Connector Ac3 BNC Connector Ac4 Service Connector Ad Rotation axis Ae Bottom LED Light Ae1 LED Switch B Eyepiece body Ba tension adjustment screw Bb turntable Bc angle adjustment bracket C Focus adjustment ring D Lens E Eyepiece cover F cable

Claims

1. This viewfinder for a video camera is provided with a viewfinder body and an eyepiece, and has a tension adjustment mechanism for moving a movable part of the eyepiece up and down.

2. 2. A viewfinder for a video camera according to claim 1, A viewfinder for a video camera has an input panel that can change the input panel for the viewfinder video input signal.

3. 2. The viewfinder for a video camera according to claim 1, further comprising a liquid crystal monitor, A viewfinder for a video camera that can input two or more video signals into the viewfinder and has the function of being able to display different video signals separately on the video display unit of the eyepiece.

4. 2. A viewfinder for a video camera according to claim 1, wherein two or more systems of viewfinder video input signals can be input, and the viewfinder has a function of switching the video displayed on the video display unit of the eyepiece.

5. A viewfinder for a video camera according to any one of claims 1 to 4, which has a bottom LED light at the bottom of the viewfinder body and a selector switch that turns on a light at hand in conjunction with or not in conjunction with a TALLY signal.

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