Abstract: A print head for a wire dot-matrix printer includes an element base, and a plurality of print elements engaged with and supported by the element base. Each of the print elements includes a print wire, an actuator moving the print wire, and a base supporting the actuator, the base of each of the print elements having an engagement hole. An engagement member is inserted into the engagement hole of the base of each of the print elements and is engaged with the base of each of the print elements.

Abstract: A printing head provided in a wire-dot printer includes a plurality of first wire pins arranged in accordance with a predetermined rule, ends of the first wire pins facing a printing plane, a first driving mechanism for reciprocating the first wire pins in directions approximately perpendicular to the printing plane, a plurality of second wire pins longer than the first wire pins, ends of the second wire pins facing the printing plane, and a second driving mechanism for reciprocating the second wire pins in the same directions as the first wire pins, wherein the first and second driving mechanisms are arranged along a direction approximately perpendicular to the printing plane under a condition in which the first driving mechanism is positioned nearer the printing plane than the second driving mechanism.

Abstract: A lens barrel according to the invention comprises a fixed tube fixedly mounted on a camera body, a drive tube fitted with respect to the fixed tube, a data projector fixedly mounted on the camera body for radiating a projecting luminous flux toward a film surface from respective outer peripheries of the fixed tube and the drive tube, to project photographing information, a through bore formed through a portion of the fixed tube through which the projecting luminous flux of the data projecting means passes, and a cut-out provided in a portion of the drive tube which is overlapped with the through bore in the fixed tube upon photographing. Upon non-photographing, a portion of the drive tube having no cut-out shields the through bore in the fixed tube.

Abstract: A lens barrel drive unit for a camera, in which the present invention is implemented, comprises a lens barrel that is a moving object having a female screw, a drive screw that includes a male screw which engages with the female screw and that moves the lens barrel back and forth with the rotation of the male screw, a drive source for rotating the drive screw, a signal generator for generating a pulse signal according to the rotation of the drive source or drive screw, a first memory that stores a difference between a theoretical lead and an actual lead of the drive screw as a correction coefficient, a second memory that stores the theoretical number of pulses associated with a quantity of rotation of the drive screw which is required to drive the lens barrel to a given position corresponding to a subject distance, and a computing unit that uses the correction coefficient and the theoretical number of pulses to compute the actual number of pulses required for extending the lens barrel.

Abstract: A mode selecting and displaying control apparatus for a camera according to the invention sets a plurality of marks representing set modes in a display state on an LCD panel and sets marks representing other modes in a non-display state while a first switch for setting modes of the camera, e.g., operation modes and flash modes, in a changeable state, is in a non-operated state. By operating a second switch for changing the modes one by one while the first switch is in an operated state, the plurality of marks in a display state are sequentially caused to flicker in accordance with a mode to be set, while marks representing other modes are set in a display state, thereby performing a mode changing operation.

Abstract: An encoder device of the present invention comprises:a motor for driving a photographing lens,a pulse generator operated by a drive force transmitted from the motor to the photographing lens, and generating a coarse pulse signal and a fine pulse signal corresponding to rotation of the motor,counters for counting the coarse pulse signal and the fine pulse signal, respectively,a reset device for resetting the number of the coarse pulse signals counted by the counters when the photographing lens reaches a predetermined position,a motor drive/controller for controlling start and stop of drive of the motor, anda detector for determing a value related to the driven position of the photographing lens upon halting of the driving of the motor based on the number of the coarse pulse signals counted from the predetermined position for resetting and the number of the fine pulse signals counted after a final one of the coarse pulse signals has been output.

Abstract: In a strobe controlling apparatus, there are provided respective information outputs for outputting respectively the guide number information GV, film sensitivity information SV and object distance information DV, a judged diaphragm value is determined by the operation of GV+SV-DV from their outputs, the above-mentioned diaphragm value is compared with a predetermined value memorized in advance, in case the above-mentioned diaphragm value is smaller, the diaphragm will be controlled and, in case the above-mentioned diaphragm value is larger, the flash amount will be controlled so that, particularly, at the time of strobe photographing, the short distance exposure may be prevented from being over-exposed and a proper exposure is made possible.

Abstract: A piezoelectric actuator device adapted for use in a printing machine and comprising a piezoelectric assembly and a movement magnifying mechanism for magnifying the movement of the piezoelectric assembly and for transferring the magnified movement to the printing wire. The movement magnifying mechanism includes a rigid member, a first spring connecting the second end of the piezoelectric assembly to the rigid member, and a second spring connecting the rigid member to the support base. A vibration absorbing means preferably comprising silicone rubber resin is inserted between the first and second springs to damp the vibration of the movement magnifying mechanism.

Abstract: In a centrifugal separator which has in the top panel of its case an opening communicating with a rotor chamber and a control panel disposed behind the opening, a lid for covering the opening has a cutaway made in its lower portion for receiving the control panel and the pivot of the lid is extended laterally to the rear of the control panel. The lid is spring biased toward its open position and is opened by depression of a foot pedal that is connected to a lid lock mechanism. The control panel includes an indicator of rotor rotational frequency and rotor chamber temperature, the indicator being supplied with electrical signals produced by sensors within the case of the centrifugal separator.

Abstract: A multimode camera comprises means for independently setting an aperture and a shutter speed to their optional values, means for selectively setting an AV-TV characteristic line in accordance with the aperture and shutter speed which have been set by the independently setting means, means for storing the AV-TV characteristic line which have been selected by the selectively setting means in accordance with a lens identification number of a lens barrel mounted on the camera, and means for unequivocally reading out the AV-TV characteristic line which have been stored in the storing means in accordance with the lens identification number of the lens barrel when a power source is turned on and/or the lens barrel is mounted on a camera body.

Abstract: A multimode camera comprises an independently settable aperture and shutter to set the aperture and shutter speed to preset, optional values. An AV-TV characteristic line is determined in accordance with the aperture and shutter speed which have been individually set by independent action. The AV-TV characteristic line is selected in accordance with a lens identification number of a lens barrel mounted on the camera. The AV-TV characteristic line which has been stored in a memory is unequivocally selected in accordance with the lens identification number associated with the lens barrel when a power source is turned on and/or the lens barrel is mounted on a camera body.

Abstract: A bucket, for use on a swing-type rotor in a centrifugal separator, shaped to receive specimen holders of several different configurations. The bucket has a pair of diametrically opposite side walls having central portions displaced radially outwardly as first and second arcuate wall portions extending around a central axis of the bucket and another pair of diametrically opposite side walls having upper portions displaced radially outwardly as inverted U-shaped bearings for allowing the bucket to be suspended on the rotor. The other side walls are spaced from each other by a distance equal to or greater than the diameter of the arcuate wall portions.

Abstract: A centrifugal separator capable of selectively mounting sedimentation tubes or capillary tubes on a rotor includes a container receptacle mounted in an outer box of the separator for receiving sedimentation tube containers. When the sedimentation tube containers are received in the container receptacle, their presence is detected to enable the rotor to rotate at a relatively high speed required when the capillary tubes mounted on the rotor.

Abstract: A light emitting element and a photo detector are disposed opposite each other in an outer housing of a centrifuge. When an angle rotor is mounted on a motor shaft, light emitted from the light emitting element is received by the photo detector without being intercepted by the angle rotor and, by the output of the photo detector, a permissible maximum revolving speed of the angle rotor is set high. When a swing rotor is mounted on the motor shaft, the light from the light emitting element is intercepted by the swing rotor, and hence is not received by the photo detector and, by the output of the photo detector, a permissible maximum revolving speed of the swing rotor is set low.

Abstract: A centrifuge is provided with a rotor having a plurality of spaced arms each of which has formed integrally therewith stepped portions projecting towards adjacent arms. Tube rack carrying test tubes are each placed between adjacent arms and a centrifugal force applied to the tube rack is received by abutment of engaging portions of the tube rack with the stepped portions of the arms. A cylindrical wind shield is fixed to the rotor in a manner to surround the rotor and the tube racks. The upper open end of the wind shield is almost closed by sectorial plate portions of the arms and one end face of each tube rack.

Abstract: A vibration-isolating apparatus for a centrifuge comprising a rotor mounted by means of at least one coil spring in a casing, wherein to dampen vibrations, a flexible belt is wound longitudinally on the coil spring around both ends thereof in a plurality of turns. The belt can be clamped to the ends of the coil spring.

Abstract: A method of moulding foamed synthetic resin pellets of polyolefine in a mould, wherein the synthetic resin pellets are prepared with volumne of closed cells being more than 65 % of the total volume of the total cells and having an inorganic gas in the cells at a pressure higher than 1.18 atmospheres, then filled in a mould which is not completely gas tight, and then heated to expand and tightly adhere to each other. The pressure in the mould can be lower than ordinary pressure or at a vacuum and the pressure of the resin can be at a pressure higher than ordinary pressure. The moulded product may be removed from the mould after cooling or during cooling when the inner temperature of the product is between its melting point and a temperature 50.degree.C below the melting point. The obtained product may be stored at a temperature of 30.degree. to 70.degree.C below the melting point.