摘要:
In a camera with vibration correcting function, by varying the optical axis of the phototaking lens according to the vibration of the camera, there are provided a main control device for controlling the phototaking exposure process of the camera and a vibration correcting control device for controlling the vibration correcting operation of the camera, in which the vibration correcting control device has at least a stopped state without function and a function state, and the main control device is electrically connected with the vibration correcting control device and is adapted to control the same. The power consumption in the vibration correcting control device is reduced by switching the stopped state and the function state of the vibration correcting control device, by the control signal from the main control device.
摘要:
A camera with a vibration correction function prevents a battery from unnecessarily exhausting due to a failure of a vibration corrective lens driving system and provides accurate vibration-resistant control. A vibration corrective lens is subjected either to a centering drive operation to drive an optical axis to a center position of the photographing system or to a resetting drive operation to drive the optical axis to the initial position. When an abnormal drive operation is detected, the centering or resetting operation ceases to supply electric power to the angular velocity detecting circuit, the motor drive circuit, and the lens displacement detecting circuit.
摘要:
A vibration preventing camera includes a vibration amount detecting unit for detecting the amount of vibration, a vibration correcting unit for correcting vibration, a light measuring unit for measuring the light value at a subject, and a control unit for controlling the vibration correcting unit in consonance with a detection signal that is obtained by the light measuring unit and the vibration detecting unit, and for activating the vibration detecting unit after the length of exposure is determined by the light value at the subject that is obtained by the light measuring unit. More preferably, a vibration preventing camera further includes a self-timer unit, and when the self-timer unit is set for an exposure, the vibration detecting unit is activated after the timing count down for the self-timer unit begins.
摘要:
This camera capable of image blur reduction includes a command device which outputs a photography command in response to a operation for photography, a photographic device which performs photography, and a control device which, in order to reduce blurring of a photographic image, actuates the photographic device after a predetermined time period has elapsed from the time point that the photography command was output.
摘要:
A vibration detection device includes a detecting device for detecting a vibration, and an output from the amplifying device obtained when outputting a detection signal on the basis of the detection result, an amplifying device for amplifying the detection signal, an initializing device for initializing the output from the amplifying device, and an adjusting device for adjusting the output from the amplifying device so that an output from the amplifying device obtained when the amplifying device is initialized, and an output from the amplifying device obtained when the amplifying device is not initialized and the detecting device generates no signal have substantially the same values.
摘要:
A camera is provided which has a vibration detection unit that detects vibration, a photographic focal length detection unit which detects the focal length of the photographic optical system, and a distance-measurement unit that measures the distance to the object being photographed. The vibration compensation device employs drive motors as a vibration compensation unit. The drive motors have a start up time which is at least as fast as the acceleration of a vibration having roughly a sine wave shape with a frequency of 10 Hz and a maximum velocity of 7.5 mm/sec. Such a motor is able to reach the maximum velocity of the vibration in under 25 ms. Additionally, a correct compensating coefficient calculation unit is provided which, from the output of the photographic focal length detection unit and the output of the distance-measurement unit, calculates a correct compensation coefficient for determining how much to change the optical axis of the photographic optical system relative to the output of the vibration detection unit. The vibration compensation device compensates for vibrations by driving the motor to change the optical axis of the photographic optical system of the camera in response to the compensation coefficient and the output of the vibration detection unit.
摘要:
A lens driving system for a camera with an anti-vibration function has a vibration correcting lens drivable in a direction in which blurring of an image on an image surface due to a camera shake is prevented from occurring, vibration correcting lens driving means for driving the vibration correcting lens, a photointerrupter detecting a relative position and speed of the vibration correcting lens, and a disk being connected to the correcting lens driving means and having a plurality of slits determined in accordance with the width of a slit of a light receiving section of the photointerrupter and the resolution of detection of shift of the vibration correcting lens in order to turn on and off the photointerrupter repeatedly.
摘要:
A camera with vibration correcting function is provided with a plurality of vibration detecting devices for detecting the vibration of the camera, a plurality of vibration correcting devices for effecting vibration correction control in conformity with the respective outputs of the vibration detecting devices, and an abnormality detecting device for detecting the abnormality of the output of the vibration detecting devices, and only the vibration correcting device corresponding to the vibration detecting device having the output for which abnormality has been detected by the abnormality detecting device is inhibited from effecting the vibration correction control.
摘要:
A camera with a vibration correction function provided with a continuous shot mode for carrying out continuous photographing, has a vibration detecting device for detecting vibration of the camer, a vibration correcting device for correcting the vibration of the camera at the time of photographing based on a signal from the vibration detecting device, a film feeding device for feeding a photographic film loaded in the camera, a film end detecting device for detecting an end of the photographic film, and a control device for stopping the operation of the vibration detecting device and making the film feeding device start rewinding the photographic film when receiving a film end detection signal from the film end detecting device during photographing under the continuous shot mode.
摘要:
A photographic device has a vibration compensation system with reduced power consumption. The photographic device includes a vibration compensation system with a vibration detection device to detect vibration caused by, for example, a photographer's hand tremor, a vibration compensation device to cause the optical axis of a photographic optical system to change to compensate for the detected vibration, and a control unit to perform processes including vibration compensation control to control the vibration compensation device based on the output of the vibration detection device. The control unit has a low electric current consumption mode which causes its processes to stop to restrain the consumption of electric current, and a normal operation mode during which processes are performed. The photographic device includes a mode changeover device to change the control unit from the normal operation mode to the low electric current consumption mode when a photographic operation has ended. The mode changeover device may also change the control unit from the low electric current consumption mode to the normal operation mode when photographic preparation operations commence. The photographic device also includes an exposure device to perform an exposure on an image forming plane of a photographic optical system, and the control unit operates in a high-speed mode when both exposure control and vibration compensation control are performed at the same time, and in a low-speed mode when exposure control and vibration compensation control are not performed simultaneously.