Camera system having power zoom lens
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorsMasahiro Kawasaki, Hiroyuki Takahashi, Yoshinari Tanimura
Life of this patent
Estimating the term…
Abstract
A camera including a power zoom lens having a zoom mechanism, which supports a zooming lens unit to move in the optical axis direction, and a shutter mechanism. The camera further includes a motor for driving the zoom mechanism, and a control device for actuating the motor for a predetermined period of time after a shutter has been opened and before the shutter is subsequently closed.
Claims25
A camera including a power zoom lens having a zoom mechanism, which supports a zooming lens unit to move in an optical axis direction, and a shutter mechanism, said camera further comprising:
- a motor for driving the zoom mechanism;
- and
- control means for actuating said motor when a predetermined period of time has passed after a shutter has been opened, and before the shutter is subsequently closed, wherein said control means actuates said motor for a second predetermined time period after which said control means deactuates said motor.
A camera including a power zoom lens having a zoom mechanism which supports a zooming lens unit to move in an optical axis direction and a camera body to which the zoom lens can be detachably mounted and which has a shutter mechanism, wherein;
- said power zoom lens comprises a motor for driving the zoom mechanism, and lens control means for controlling said motor, and wherein;
- said camera body comprises body control means for controlling said lens control means, said body control means controlling said lens control means to actuate said motor to commence zooming when a predetermined period of time has passed after said shutter mechanism has been opened, and before the shutter is subsequently closed, wherein said lens control means actuates said motor for a second predetermined time period and then deactuates said motor.
A camera including a power zoom lens having a zoom mechanism which supports a zooming lens unit to move in an optical axis direction, and an exposure mechanism, comprising:
- a motor for driving the zoom mechanism;
- and
- control means for actuating said motor when a predetermined period of time has passed since the actuation to open said exposure mechanism, and before the shutter is subsequently closed, wherein said control means actuates said motor until a second predetermined time period passes at which time said control means deactuates said motor.
A camera including a power zoom lens having a zoom mechanism, which supports a zooming lens unit to move in an optical axis direction, and a shutter mechanism, said camera further comprising:
- a motor for driving the zoom mechanism;
- means for detecting the passage of a predetermined period of time after an opening of a shutter;
- and
- means for actuating said motor in response to the detection of said passage of a predetermined period of time by said detecting means;
- wherein said actuating means actuates said motor for a second predetermined time period after which said control means deactuates said motor.
A camera including a power zoom lens having a zoom mechanism which supports a zooming lens unit to move in an optical axis direction and a camera body to which the zoom lens can be detachably mounted and which has a shutter mechanism, wherein;
- said power zoom lens comprises a motor for driving the zoom mechanism, and lens control means for controlling said motor, and wherein;
- said camera body comprises body control means for controlling said lens control means, said body control means having means for detecting the passage of a predetermined period of time after an opening of a shutter;
- and means for controlling said lens control means to actuate said motor to commence zooming in response to the detection of said passage of a predetermined period of time by said detecting means;
- wherein said lens control means actuates said motor for a second predetermined time period after which said lens control means deactuates said motor.
A camera including a power zoom lens having a zoom mechanism which supports a zooming lens unit to move in an optical axis direction and an exposure mechanism, comprising:
- a motor for driving the zoom mechanism;
- and
- control means for determining when said exposure mechanism is actuated to open and for detecting the passage of a predetermined period of time after the opening of said exposure mechanism;
- said control means further comprising means for actuating said motor in response to the detection of said passage of a predetermined period of time;
- wherein said control means actuates said motor for a second predetermined time period after which said control means deactuates said motor.
Dependencies are inferred from the claim text.