摘要:
A vibration reduction apparatus includes a vibration detector for detecting movement; and an image blur reduction mechanism including a vibration reduction optical system for preventing an image from blurring, and a drive mechanism for driving the vibration reduction optical system. The drive mechanism is controlled to drive the vibration reduction optical system in response to a detection signal from the vibration detector. The vibration detector is integrally mounted as a part of a mechanism unit including the vibration reduction mechanism.
摘要:
A camera, equipped with a viewfinder having an optical axis different from the optical axis of the photographic lens system, has a parallax compensation apparatus for compensating for the parallax between the viewfinder and the photographic lens system. The parallax compensation apparatus includes a distance measuring device which measures an object's distance from the camera and an optical axis moving device which moves the optical axis of the photographic lens system according to the parallax, which is based on the results received from the distance measuring device, thereby matching the photographic image plane with the viewfinder field. In addition, the optical axis moving device moves the optical axis of the photographic lens system to compensate for hand trembling or other motion of the camera during shooting.
摘要:
An image-shake correcting camera including an image shake correcting device for correcting image shakes caused by camera shakes and a photographic mode setting device for setting an operation condition of camera in photography, in which the image shake correcting device changes a correction property, based on the operation condition set by the photographic mode setting device.
摘要:
A blur prevention device is equipped with first and second drive units which can move a blur prevention lens in a plane orthogonal to an optical axis of a main optical system. First and second transfer units transfer the amount of movement of the drive units to the blur prevention lens and first and second transfer receiving units receive the amount of movement in the respective directions from the respective transfer units. Each of the transfer receiving units can move relative to the one transfer unit other than the respective transfer unit. The blur prevention device has a specified direction for one of the transfer units and allows a degree of freedom outside the movement in the specified direction to the other transfer unit. Restriction gears, which are part of the drive units, restrict the amount of movement of the blur prevention lens in the plane orthogonal to the optical axis. And, by integrating a lens shutter or aperture with the blur prevention device, the blur prevention lens may be easily positioned in a central position of its drive range.
摘要:
A camera having an optical system which is shiftable to compensate for vibrations affecting the camera, a shift mechanism which shifts the optical system along an axis, and an urging mechanism. The urging mechanism provides an urging force along the axis to urge the optical system and to assist the shift mechanism in shifting the optical system. The urging force of the urging mechanism is approximately 1.5 to 5 times the weight of the optical system. Moreover, a feed screw mechanism includes a male portion and a female portion which cooperate, via a helical groove, to shift the optical system. The feed screw mechanism has an angle of friction and the helical groove has a lead angle that is smaller than the angle of friction.
摘要:
An electric shutter for camera is operable selectively with manual control mode in which the shutter time is set manually or with automatic exposure control mode in which a proper shutter time is set automatically. The preciseness of shutter time is improved by using one and single control cam in manual control mode as well as in automatic control mode.
摘要:
In a light-intercepting device in a camera including a plurality of flat light-intercepting vanes disposed on a light-intercepting plane crossing an optical path, the light-intercepting vanes comprise a substrate formed of titanium or a titanium alloy, and a hardened layer of titanium compound formed on the surface of the substrate.
摘要:
In a device, an angular velocity detector detects the angular velocity of a camera body and produces a signal conforming thereto. Whether the camera is performing pan shot is discriminated on the basis of the produced signal. Preferably, the discrimination is effected on the basis of a signal from which the high frequency component of the signal has been eliminated. Also, in one mode, the device sets an appropriate shutter speed when it is detected that the mode is pan shot.
摘要:
This specification discloses an image movement correcting device for a photographing apparatus for appropriately judging a variation in the amount of image movement correction by the difference in the position of the center of rotation, and effecting accurate image movement correction. Any angular fluctuation of the optical axis of the photographing apparatus is detected by angular displacement detecting means, and when on the basis of the angular fluctuation, image movement correction on a photographing image field is effected by image movement correcting means, the amount of image movement correction by the image movement correcting means is varied in conformity with the position of the center of rotation discriminated by rotation center position discriminating means for discriminating the position of the center of rotation of the angular fluctuation during the photographing by the photographing apparatus.
摘要:
An anti-shake camera includes a camera shake correction lens for correcting image blurring caused by a camera shake, a camera shake correction lens position detection device for detecting the moving position of the camera shake correction lens, and an indication device for indicating a shaking direction of the camera so as to decrease the moving amount of the camera shake correction lens from a neutral position.