Abstract: An image vibration correcting device has a vibration correcting optical system so movable as to vary an optical axis of a phototaking optical system in order to correct an image vibration resulting from vibration, a drive force generating unit including a magnetic member and a coil, for generating an electromagnetic force for driving the vibration correcting optical system, a substrate bearing a pattern for transmitting an electrical signal, and a support member composed of a conductive elastic material, supporting the vibration correcting optical system and electrically connecting the pattern on the substrate with the coil in the drive force generating unit.

Abstract: A slight motion detecting device includes a angular velocity sensor, a low pass filter, a high pass filter, an amplifier, and a CPU. The CPU differentiates an output from the angular velocity sensor so as to obtain an angular acceleration, and determines that a peak of the acceleration is obtained at the time at which the sign of the acceleration is changed, and further, calculates a zero level detection value of the angular velocity, from the peak, thereby the output of the angular velocity sensor is corrected in accordance with the zero level detection value.

Abstract: 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.

Abstract: A shake preventing apparatus in a camera, comprises a shake detecting device for detecting an amount of shake upon small motion of the camera, a shake correcting device for correction-driving a photo taking optical system in a direction to keep an image on a plane of a film unshaken, based on the amount of shake detected by the shake detecting device, a shake correction limit determining device for determining a shake correction limit amount which is a limit for the shake correcting device to correct the shake, and a shutter controlling device for controlling a shutter to close when the amount of shake detected by the shake detecting device exceeds the shake correction limit amount determined.

Abstract: An image-shake correcting photographic apparatus comprises a photographic optical system, an image-shake correcting device comprised of an element which is a constituent of the photographic optical system, a condition output device for detecting a condition of the photographic optical system upon photography and generating an output related to the condition detected, a shake detecting device for detecting shakes of the photographic apparatus and generating an output related to the shakes detected, and a drive control device for drive-controlling the image-shake correcting device, based on the output of the condition output device and the output of the shake detecting device.

Abstract: An apparatus such as a camera, etc. incorporates at least first and second ultrasonic wave actuators driven at predetermined frequencies for driving the apparatus. The first and second ultrasonic wave actuators are drive-controlled at different frequencies by first and second actuator drive portions controlled by an apparatus control portion. The first and second ultrasonic wave actuators are constructed to satisfy a relationship such as .vertline.f1-f2.vertline.>4000, where f1 (Hz) is the drive frequency of the first ultrasonic wave actuator, and f2 (Hz) is the drive frequency of the second ultrasonic wave actuator. Prevented thus are drawbacks caused when simultaneously driving the plurality of ultrasonic wave actuators for driving the apparatus, i.e., a resonance in an apparatus structural body and a resultant "beat" phenomenon.

Abstract: A blurring motion detection device and method to determine an improved blurring motion zero reference value. The device includes a storage unit to store averaged blurring motion data based on an average of successive blurring motion data, with new blurring motion data being more recent in time than old blurring motion data. A selection unit filters out anomalous blurring motion data by selecting the blurring motion data within a deviation range from an average of the stored blurring motion data. The deviation range may include a first deviation range for the old blurring data which is set to be smaller than a second deviation range for the new blurring motion data. The deviation range may also be defined by a decision function which gradually widens the deviation range for the new blurring motion data. A calculation unit calculates the blurring motion zero reference value based on the blurring motion data within the deviation range.

Abstract: 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.

Abstract: An apparatus for inspecting a blur correction function of a blur correction camera, which comprises an optical axis changing unit for changing the optical axis of a photographing optical system so as to correct a blur generated by a vibration, a displacement detecting unit for detecting a displacement of the photographing optical system by the optical axis changing unit, a maximum/minimum displacement detecting unit for detecting maximum and minimum values of an output value from the displacement detecting unit, and an angular velocity detecting unit for detecting an angular velocity caused by the vibration, includes: an information exchange unit for exchanging information with the blur correction camera, a vibration applying unit for applying a sinusoidal vibration having a predetermined angular amplitude in a detection direction of the angular velocity of the angular velocity detecting unit of the blur correction camera, a reading unit for reading an output value from the maximum/minimum displacement detect

Abstract: An apparatus for inspecting a blur correction function of a blur correction camera, which comprises an optical axis changing unit for changing the optical axis of a photographing optical system so as to correct a blur generated by a vibration, a displacement detecting unit for detecting a displacement of the photographing optical system by the optical axis changing unit, a maximum/minimum displacement detecting unit for detecting maximum and minimum values of an output value from the displacement detecting unit, and an angular velocity detecting unit for detecting an angular velocity caused by the vibration, includes: an information exchange unit for exchanging information with the blur correction camera, a vibration applying unit for applying a sinusoidal vibration having a predetermined angular amplitude in a detection direction of the angular velocity of the angular velocity detecting unit of the blur correction camera, a reading unit for reading an output value from the maximum/minimum displacement detect

Abstract: With a simple structure, a reliable driving control is obtained for a corrective optical system for correcting an image deviation resulting from unsteady motions caused by a manual holding of an apparatus.A corrective optical system for correcting an image deviation is movably supported in a plane perpendicular to the optical axis. There are provided a drive for driving this system and a movable member operated by this drive to provide a corrective motion accompanying a rotational component when it is driven. There are also provided a detector fixed to this movable member for detecting its angle variations with respect to the inertial system as well as means for controlling the operation of the drive. The shifting amount D' of the corrective optical system for correcting an image deviation d (=f.multidot..theta.) at a variation angle .theta. of the optical axis of the optical system having a focal length f is D'=D/A (where A=a proportional coefficient and D=an image shifting amount).

Abstract: An image blur suppression device suitable for a camera which compensates for low frequency camera motion without increasing the length of the camera in the optical axis direction and without posing limitation on the design of the camera. The image blur suppression device compensates for image blur by damping vibrations of a camera body to a compensation optical system using the inertia of a balance member. An oscillation mechanism unit is equipped with a first rotation member, one end of which is supported by the camera body so that it can rotate freely and the other end of which is fitted with the compensation optical system. A second rotation member is supported by the camera body so that it can rotate freely. The second rotation member has one end fitted to the first rotation member and the balance member attached to the other end.

Abstract: A camera having an image deflection prevention function and which shortens the time from depression of a release button to the commencement of an exposure action while sufficiently maintaining an image deflection correction stroke during the exposure. After a full-depression operation of the release button, a camera CPU determines a drive position and drive direction of a blurring correction optical system based on an output from a correction optical system position sensor. When the drive direction of the blurring correction optical system is toward the center of its drive range, an exposure action is commenced. When the drive direction is away from the center of the drive range, an exposure action is inhibited.

Abstract: A vibration preventing device comprises a vibration preventing optical system movable for the prevention of vibration, a vibration preventing mechanism portion, a holding member for fixedly holding the vibration preventing optical system, and a frame member for mounting the holding member on the vibration preventing mechanism portion. The frame member and the holding member are separably coupled together.

Abstract: 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.

Abstract: 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.

Abstract: In a light metering device, first luminance information is calculated from the output of a first photoelectric converter which photoelectrically converts the light beam from a first area of the object field. After a predetermined time from the photoelectric conversion, second luminance information is calculated from the output of a second photoelectric converter which photoelectrically converts the light beam from a second area, having an overlapping area with the first area. A first overlapping area luminance, in the overlapping area of the first photoelectric converter, and a second overlapping area luminance, in the overlapping area of the second photoelectric converter are determined, and the light values in the first and second areas are calculated from the first and second luminance information and the first and second overlapping area luminance.

Abstract: 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.

Abstract: A camera shake alarming apparatus comprises a storage portion for storing specification information of a camera; a subject distance detecting portion for detecting a subject distance for photographing a subject; a calculating portion for calculating an allowable camera shake quantity on the basis of a shutter speed set in the camera when photographing the subject, the camera specification information stored in the storage portion and the subject distance detected by the subject distance detecting portion; a camera shake detecting portion for detecting a camera shake quantity of the camera; a comparing portion for comparing the allowable camera shake quantity calculated by the calculating portion with the camera shake quantity detected by the camera shake detecting portion; and an alarming portion for giving an alarm for the camera shake according to a compared result of the comparison portion.

Abstract: An exposure control device in a camera comprises a focus detection device for calculating a plurality of defocus amounts corresponding to a plurality of focus detection areas, a weight producing device for producing a plurality of weights corresponding to the plurality of focus detection areas on the basis of the plurality of defocus amounts, a light metering device for light-metering a plurality of light metering areas at least partly overlapping with the plurality of focus detection areas and producing a plurality of light metering outputs, and an exposure amount calculating device for calculating a proper exposure amount on the basis of the plurality of weights and the plurality of light metering outputs.