摘要:
A camera using films each having a development processing solution in a solution accommodating bag includes rollers feeding photographed film outside of the camera or into an accommodating chamber, a piezoelectric press member held between an electrode and an elastic member also serving as an electrode presses photographed film and spreads development processing solution in the solution bag over an entire exposing portion. A piezoelectric member vibrated by AC voltages applied to the electrode and elastic member reduces a frictional force of the film caused by the press member. The processing solution is heated by vibrating the press member to generate heat. A camera using films each having a development processing solution accommodated in a solution bag includes a follower roller disposed on the upper side of the film, an ultrasonic motor composed of a vibrator on the lower side of the film, a temperature sensor detecting temperature of the ultrasonic motor, a peripheral temperature measuring circuit for detecting a peripheral temperature and a control circuit controlling drive of the ultrasonic motor based on the results detected by the temperature sensor and the peripheral temperature measuring circuit. The ultrasonic motor also serves as a film feed unit for feeding photographed film outside of the camera or into an accommodating chamber, a press unit for pressing photographed film and spreading development processing solution in the solution bag over an entire exposing portion and a heating unit for heating development processing solution before spreading.
摘要:
An electronic imaging apparatus includes an imaging optical system which forms an optical image of an object. A photoelectric conversion element converts the optical image into an electric signal. The optical element is arranged between the imaging optical system and the photoelectric conversion element. An excitation unit vibrates the optical element at a set frequency, and vibrates the optical element at least in an imaging operation of the photoelectric conversion element.
摘要:
A camera is provided which includes a dust-proofing member that has a substantially circular or polygonal plate-shape, and that includes a transparent portion at an area having at least a predetermined length in a radial direction from the center thereof, the transparent portion being opposed to the front of the optical device at a predetermined interval. A member for vibration is annularly arranged at a peripheral portion of the dust-proofing member, and applies vibrations to the dust-proofing member. And a sealing structure is arranged to constitute a space portion that is substantially sealed at a portion formed by opposing the image pick-up device and the dust-proofing member by sealing the space portion at peripheral portions of the image pick-up device and the dust-proofing member.
摘要:
A vibration wave motor includes a housing, a rotor, a bearing member, a vibrator serving as an actuator and having a support shaft and a driving element, and a leaf spring having a pressing protrusion. The vibrator is slidably disposed in an opening of the housing along a rotation axis direction of the rotor, and a support shaft of the vibrator is rotatable. The vibrator is held while being urged by the leaf spring and being in contact with the rotor. The vibrator is excited to generate supersonic vibration so that the rotor is rotated. Since the vibrator is movably supported by the housing in the rotation axis direction and the vibrator is urged by the leaf spring and is in contact with a friction contact surface of the rotor, the vibrator is evenly in contact with the rotor in a direction perpendicular to the friction contact surface so as to provide superior driving conditions of the vibration wave motor.
摘要:
A vibration wave motor includes a housing, a rotor, a bearing member, a bending-vibration driving transducer having a support shaft and two driving elements and serving as an actuator, and a leaf spring having a pressing protrusion. The transducer is slidable in an opening of the housing along a rotation axis direction of the rotor, and a support shaft of the transducer is rotatably supported and inserted. The transducer is held while being urged by the leaf spring and being in contact with the rotor. Since the transducer is urged by the pressing protrusion of the leaf spring, the leaf spring is in complete contact with the transducer without edge contact so that the two driving elements are evenly in contact with the rotor in a direction perpendicular to the frictional contact surface, thus providing driving conditions of superior conversion efficiency.
摘要:
A camera according to this invention comprises a photographing optical system which forms an optical image of an object, a photoelectric conversion element which converts the optical image into an electric signal, an optical element arranged between the photographing optical system and the photoelectric conversion element, and vibration means which vibrates the optical element first at one of at least two frequencies and then at the other frequency, the frequencies being close to resonance frequencies.
摘要:
A camera is provided that includes a dust-proofing member which has a transparent portion through which a visible light component is transmitted among beams incident from a photographing lens and which absorbs an infrared component, opposed to the front of an image pick-up device at a predetermined interval. A member for vibration is arranged at a peripheral portion of the dust-proofing member, and applies vibrations to the dust-proofing member. And a sealing structure portion is arranged at a portion formed by opposing the image pick-up device and the dust-proofing member, for sealing a space portion that is substantially sealed at peripheral portions of the image pick-up device and the dust-proofing member.
摘要:
A camera is provided that includes a dust-proofing member which has a transparent portion through which a visible light component is transmitted among beams incident from a photographing lens and which absorbs an infrared component, opposed to the front of an image pick-up device at a predetermined interval. A member for vibration is arranged at a peripheral portion of the dust-proofing member, and applies vibrations to the dust-proofing member. And a sealing structure portion is arranged at a portion formed by opposing the image pick-up device and the dust-proofing member, for sealing a space portion that is substantially sealed at peripheral portions of the image pick-up device and the dust-proofing member.
摘要:
An optical apparatus having dust-off function comprises a dust-off filter located in the vicinity of an optical electronic device such as an image-pickup element, an image display element, or the like. An optical apparatus includes a mechanism that controls vibrating operation so that the frequency of vibration waves generated in the filter changes with the passage of time. An optical apparatus includes first vibrator for successive vibration with frequencies, a circuit monitoring the state of vibration of the optical element during vibrating operation of the first vibrator, thereby detecting the resonance frequency of the element, and second vibrator for vibration with the detected resonance frequency or a frequency approximate to it. An optical apparatus includes monitor for monitoring the state of vibration of the filter and a circuit for detecting abnormal states in accordance with output signals from the electrode.
摘要:
A vibration wave motor includes a housing, a rotor, a bearing member, a vibrator serving as an actuator and having a support shaft and a driving element, and a leaf spring having a pressing protrusion. The vibrator is slidably disposed in an opening of the housing along a rotation axis direction of the rotor, and a support shaft of the vibrator is rotatable. The vibrator is held while being urged by the leaf spring and being in contact with the rotor. The vibrator is excited to generate supersonic vibration so that the rotor is rotated. Since the vibrator is movably supported by the housing in the rotation axis direction and the vibrator is urged by the leaf spring and is in contact with a friction contact surface of the rotor, the vibrator is evenly in contact with the rotor in a direction perpendicular to the friction contact surface so as to provide superior driving conditions of the vibration wave motor.