Video camera having viewfinder and a power saving function featu

Details Video camera having viewfinder and a power saving function featu Video camera having viewfinder and a power saving function featu

1991-06-25

1994-05-17

Razavi, Michael T.

Television

Camera, system and detail

Remote control

348333, 348372, 348220, H04N 530

Patent

active

053133056

ABSTRACT:
In a video camera having an image sensor for converting an object image into a video signal, a viewfinder for visualizing the object image and a power source, waste of electric energy is prevented by controlling the supply of power to the viewfinder by detecting the access or non-access of the eye of a photographer to the viewfinder. Waste of electric energy is further prevented by controlling the power supply to the image sensor by detecting the state of the access of the eye to the viewfinder. In a case where the video camera is provided with a recorder for recording the video signal on a recording medium, waste of the recording medium is prevented by detecting the access or non-access of the eye to the viewfinder and by inhibiting a recording action of the recorder according to the result of detection, so that unintended meaningless shooting can be prevented.

REFERENCES:
patent: 4740828 (1988-04-01), Kinoshita
patent: 4899231 (1990-02-01), Maeda et al.
patent: 4945424 (1990-07-01), Hiroki et al.
patent: 5122880 (1992-06-01), Nagano

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