Camera having a lens barrier which is opened only during photogr

Details Camera having a lens barrier which is opened only during photogr Camera having a lens barrier which is opened only during photogr

1991-10-21

1993-12-28

Gellner, Michael L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

354266, 358906, 358909, 360 351, G03B 908, H04N 5225, H04N 578

Patent

active

052744108

ABSTRACT:
An imaging apparatus of an electronic camera according to the present invention has a lens barrier arranged on an object side of a photographing lens; an imaging device capable of changing electric charge storage time; a lens barrier state-detecting means for outputting a signal indicating an opening state of the lens barrier after detecting the opening state of the lens barrier; a release switch for starting a photographing operation; an imaging device control means for starting electric charge storage of the device when the signal of the opening state of the lens barrier is outputted from the detecting means and for outputting a charge termination signal when the charge is terminated; and a lens barrier opening and closing driving means for driving the lens barrier to open on the basis of a turning-on signal of the release switch and for driving the lens barrier to close on the basis of the charge termination signal outputted from the control means. In this apparatus, by driving the driving means, the lens barrier is opened only during a photographing period, while the lens barrier is closed during a non-photographing period to prevent the device from being exposed to strong outside light.

REFERENCES:
patent: 4057830 (1977-11-01), Adcock
"Camera Test of Canon Autoboy Tele 6 Date", of Photographic Industries, vol. 46, No. 469, pp. 74-79, published May, 1988, by Shashinkogyo Shuppansha.
Article entitled "Konica KC-300", of Photographic Industries, vol. 47, No. 478, published Feb. 1, 1989, by Shashinkogyo Shuppansha, pp. 38, 39 and 48-52.

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