摘要:
An actuator comprises: an electro-mechanical conversion element; a driving frictional member that is mounted onto one side in an extension/contraction direction of the electro-mechanical conversion element; a driven member that is frictionally engaged with the driving frictional member; a fixed frame; an elastic supporting member that is mounted onto the other side in the extension/contraction direction of the electro-mechanical conversion element and displaceably supports the other side of the electromechanical conversion element with respect to the fixed frame; and a pressing member that presses the elastic supporting member in the extension/contraction direction to maintain the elastic supporting member in an elastically deformed state.
摘要:
An actuator which drives a lens frame in an optical axis direction is constructed by piezoelectric elements, driving members, and a pressing spring. The piezoelectric elements are placed at opposite sides with a driven plate therebetween, and the driving members are fixed to the respective piezoelectric elements. The driving members are pressed against the driven plate from both sides by the pressing spring.
摘要:
A safety-lock mechanism for a camera includes a lock member that is rotatable between first and second lock positions for locking a lid open-close mechanism in a latching position where a lid of a cartridge chamber of the camera is latched closed; and an unlock position for allowing the lid open-close mechanism to unlatch the lid of the cartridge chamber. The lock member cooperates with a film transport mechanism such that the lock member moves from the unlock position to the first lock position as the film transport mechanism starts winding the photo filmstrip, and moves from the first lock position to the second lock position as the film transport mechanism starts rewinding the photo filmstrip. The lock member is urged by a spring to move to the unlock position.
摘要:
A laser oscillator system has prolonged service lives of optical components thereof by preventing dust and the like from being produced from heat exchanger, the heat exchanger being reduced in size, and further, generates a higher laser beam output. The laser oscillator system uses a plate type heat exchanger as a cooling unit. The plate type heat exchanger can be made free of dust and the like, during a process of manufacturing it. Hence, it is possible to prevent inclusion of dust and the like from the heat exchanger into a laser oscillator and, thereby, markedly prolong the service lives of optical component parts. Further, the plate type heat exchanger is reduced in size and weight, which makes it possible to simplify a laser gas-circulating system. Further, influence of presence thereof, such as vibrations transmitted therefrom and the like, adversely affecting an electric discharge tube and the like, is reduced. Hence, it is possible to provide the plate type heat exchanger close to a laser gas outlet of the electric discharge tube and the like, which in turn makes it possible to increase a flow rate of laser gas by virtue of reduced frictional resistance the laser gas encounters, leading to an increased laser beam output.
摘要:
A cover assembly for a camera having a metallic front cover. The metallic front cover is provided with an upheaval portion. An end surface of the upheaval portion is manufactured as a plane surface. A plastic inner frame is provided with a projection having a step. After the metallic front cover is attached to the inner frame, an ornamental member is pushed toward the metallic front cover such that engaging claws of the ornamental member are adjusted to recesses formed on the projection. The engaging claw is guided by the recess and engages with the step of the projection. A lower surface of the ornamental member abuts closely on the end surface of the upheaval portion. The metallic front cover is fixed by being caught between the ornamental member and the inner frame.
摘要:
A laser oscillator device applies a high-frequency voltage to a plurality of discharge regions through a dielectric for producing a high-frequency discharge for laser pumping. Various interferences in the laser oscillator device are prevented to allow the device to produce a stable output. The laser oscillator device includes DC power supplies (DC12a, DC13a, DC13c, DC13d) and high-frequency power supplies (RF12b, RF13b, RF14b, RF15b) which are integrally coupled to prevent electromagnetic interference through cables for allowing stable laser oscillation and also to prevent various other interferences.
摘要:
An actuator which drives a lens frame in an optical axis direction is constructed by piezoelectric elements, driving members, and a pressing spring. The piezoelectric elements are placed at opposite sides with a driven plate therebetween, and the driving members are fixed to the respective piezoelectric elements. The driving members are pressed against the driven plate from both sides by the pressing spring.
摘要:
A driving apparatus comprises: an electro-mechanical conversion element; a driving member, provided on one end side of the electro-mechanical conversion element, that moves in response to extension and contraction of the electro-mechanical conversion element; and a driven member frictionally engaged with the driving member, so as to cause the driven member to travel along the driving member, wherein the electro-mechanical conversion element and the driving member are connected to each other by an adhesive; and wherein a treatment for intensifying adhesive force is applied to an adhesive surface, which is to be attached to the adhesive, on at least one of the electro-mechanical conversion element and the driving member.
摘要:
A driving mechanism comprises: (i) an actuator comprising: an electro-mechanical conversion element; a driving member which is connected to one end of the electro-mechanical conversion element and moves according to elongation or contraction of the electro-mechanical conversion element; and a weight member provided on the other end of the electro-mechanical conversion element; (ii) a driven member frictionally engaged with the driving member; and (iii) a driving circuit that drives the actuator, wherein the actuator allows the driven member to move along the driving member, and the driving circuit drives the electro-mechanical conversion element at a driving frequency f which gives f≧21/2·f0 when resonance frequency of a 1-freedom system is f0 in which the electro-mechanical conversion element and the driving member are designated as a mass and the weight member is designated as a spring, and driving frequency of the electro-mechanical conversion element is f.
摘要:
A driving apparatus comprises: an electromechanical conversion element that expands or contracts along an expanding and contracting direction; a driving member attached to one end of the electromechanical conversion element in the expanding and contracting direction; a driven body frictionally engaged with the driving member; and a printed circuit board that transmits an electrical signal for driving the electromechanical conversion element, wherein the electromechanical conversion element is mounted on a surface of the printed circuit board such that the expanding and contracting direction becomes substantially parallel to the surface of the printed circuit board, and the electromechanical conversion element is electrically connected to the printed circuit board.