摘要:
A fluorescent display device of the plane grid type capable of reducing accumulation of charges on an insulating layer, to thereby prevent an electron shading phenomenon and permit electrons emitted from a filament toward anode electrodes to be uniformly spread in a plane-like manner on both sides of the filament. A first substrate is formed thereon with stripe-like thin-film anode electrodes and stripe-like thin-film grids in a matrix-like manner through a thin-film insulating layer. The insulating layer and grids are formed with openings. Phosphors are deposited on portions of the anode electrodes exposed through the openings. The grids are formed into a height equal to or smaller than that of the phosphors. A second substrate is formed thereon with back electrodes for controlling emission of electrons from filaments. Control voltages applied to the back electrodes have a potential gradient given thereto so that a potential difference occurs between a position near the filaments and a position apart therefrom.
摘要:
The invention is a bottle-shaped can manufacturing method of shaping a neck portion, a shoulder portion and a body portion integrally. The method comprises: a step of shaping a covered metallic sheet, as prepared by forming thermoplastic resin covering films on the two surfaces of a metallic sheet and by applying a lubricant to the thermoplastic resin covering films, into a cup shape by punching out the metallic sheet; a step of shaping the shaped cup into a bottomed cylindrical can reduced in diameter and thinned at its body portion; a step of shaping the bottom side of the bottomed cylindrical can into a shoulder portion and an unopened neck portion; a step of removing the lubricant at least from the outer surface of the can which is not opened at its neck portion but opened at the lower end of its body portion; a step of applying a printed design to the outer surface of the body portion cleared of the lubricant; and a step of shaping a cut end portion, as opened by cutting the leading end portion of the unopened neck portion, into a curled portion and shaping a threaded portion below the curled portion. Therefore, a protective covering film can be formed in a homogeneous state on the metallic surface of the can. On the other hand, a decorative print can be satisfactorily applied to the outer surface of the body portion of the can. For handling the can at the printing step, moreover, there can be converted a transfer apparatus by the vacuum or compressed air injection mechanism which has been employed in the prior art.
摘要:
In a paper web feed unit of a rotary press, a paper web taken out of a paper roll is longitudinally cut into first and second cut paper webs, which are fed out toward the downstream side by a driven roller of a feed-out mechanism, and only the first cut paper web is passed through an angle bar section for transferring the traveling path of the first cut paper web. The paper web feed unit is equipped with a paper web traveling tension controller which comprises a dancer roller mechanism for independently applying a predetermined pushing pressure to each of the first cut paper web passing through the angle bar section and the second cut paper web not passing through the angle bar section, a detector for detecting the positions of dancer rollers moved in a synchronized manner, and a controller for receiving a detection signal output from the detector and for outputting a control signal to a motor for the driven roller in order to control the rotational frequency of the driven roller to thereby maintain each of the dancer rollers at a constant position.
摘要:
A camera or an apparatus adapted to use a film cartridge, or a unit applicable to the camera or the apparatus, includes a first member arranged to move the film cartridge at least for one of loading and unloading the film cartridge on or from the camera or the apparatus, and a second member arranged to prevent the first member from acting detrimentally at least on transportation of a film contained in the film cartridge.
摘要:
A camera adapted to use an image record image medium cartridge having a cover for allowing an image recording medium to exit from or withdraw into the cartridge, the camera including a cartridge chamber cover for allowing at least one of loading and unloading of the cartridge relative to the camera, and a moving device for performing at least one of closing the cartridge chamber cover while moving a predetermined interval and opening the cover of the cartridge after moving the predetermined interval, and closing the cover of the cartridge while moving a predetermined interval and opening the cartridge chamber cover after moving the predetermined interval.
摘要:
In a vari-focal camera which has a photo-taking optical system including a main lens system and an auxiliary lens system and is arranged to be shiftable between at least two different focal lengths by moving the photo-taking optical system back and forth on a photo-taking optical axis in such a way as to cause the auxiliary lens system to move onto and out of the optical axis, a guide bar is arranged to allow a lens barrel unit which includes the photo-taking optical system, a shutter and a photo-taking lens focusing device to straightly move. The guide bar is fittingly engaged with a member secured to a camera body. The camera is further provided with an adjusting member for focusing the photo-taking optical system in each of preset positions in which the photo-taking lens has the different focal lengths.
摘要:
A motorized camera having a gear train between an electric reversible motor and a film rewind fork with a mechanism for transferring the driving torque from an intermediate gear of the train to move a member having function other than film transportation as the gear is out of mesh with the next one, wherein a mechanism is provided between the last gear of the train and the rewind fork so that only when the last gear has rotated by a prescribed angular distance, the fork starts to engage the supply spool of the film cartridge to rewind the film.
摘要:
Disclosed is an automatic focusing camera capable of measuring a wide range of distances by setting a plurality of focus targets in the photographic picture plane, so designed that when the photographic picture angle changes due to changes in the focal length of the photographic lens the distance is measured by focus targets whose numbers corresponds to the photographic picture angles, to avoid mismeasurement of the distance.
摘要:
An electromagnetic drive device is described for use in a camera to electromagnetically drive the diaphragm or shutter blades. A conductive coil pattern is positioned on the opposite sides of a rotor for the shutter drive. The shutter blades, which are driven by the rotor, are made of a synthetic resin. In order to connect the rotor to the shutter blades, electrically conductive drive pins are used to electrically couple the coil pattern on one side of the above-described rotor to the pattern on the opposite rotor side. The axle of the drive pin, moreover, is fixed in a penetration hole in the rotor.