Abstract:
The disclosed erasing apparatus is capable of erasing a signal recorded on a magnetic recording medium from individual recording tracks one by one over an erasing width wider than the width of each recording track. A magnetic head receives an erasing signal from a generating circuit that generates an erasing signal including a sustained oscillation of low frequency outside of the frequency band of a recorded or reproduced signal and a subsequent attenuating oscillation of a frequency higher than the frequency of the sustained oscillation.
Abstract:
An interchangeable lens assembly for a camera is formed with a bayonet coupling affixed to the lens barrel with both being rotatable relative to an adapter shell. Upon attachment of the lens assembly to a camera housing, a detent pin is retracted from a fitted hole found in a radial flange of the adapter shell and the lens barrel is thereby rendered rotatable together with the bayonet coupling with reference to both the adapter shell and the camera housing while the adapter shell is held stationary relative to the camera housing during mounting and dismounting of the lens assembly.
Abstract:
An interchangeable lens assembly for a camera including a lens barrel having a diaphragm mechanism mounted therewith, a bayonet coupling mechanism fixed on the lens barrel and adapted to be brought into engagement with a complementary coupling mechanism on the camera for releasably mounting the lens assembly in operative position on the camera, an adapter shell mounted on the lens barrel in rotative relationship relative thereto for establishing predetermined relative positioning between the interchangeable lens assembly and the camera, and a retainer mechanism adapted to be interposed between the adapter shell and the camera for retaining the adapter shell in fixed rotative position relative to the camera during mounting and dismounting of the interchangeable lens assembly. The lens assembly also includes a diaphragm presetting mechanism for transmitting signals representative of a diaphragm aperture between the lens assembly and the camera. Since coupling and decoupling of the lens assembly is performed by rotating the lens barrel relative to the camera housing, while the adapter shell remains stationary, the diaphragm presetting mechanism is provided with a device for assuring that an arm extending between the camera and the lens assembly is located in a predetermined angular position relative to a slot in the stationary adapter shell before and after the unit is attached to and detached from the camera housing despite the fact that the range of rotative tightening movement of the tube may be larger or smaller than that of movement of the arm. Thus the operator is able to detach the unit with the position of the diaphragm ring left unchanged.
Abstract:
A diaphragm linkage device for interchangeable lenses wherein more than three column-shaped guide members with a groove consisting of plastic material with a small friction coefficient are provided around the optical axis of the barrel for the interchangeable lens. A diaphragm linkage ring is adapted in the grooves in such a manner that by means of the guide members the diaphragm linkage ring is carried in the direction of thrust and in the radial direction.
Abstract:
In a lens structure having a movable portion, a pair of movable lenses and holder frames therefor are slidably fitted together within a guide cylinder, and a stationary cylindrical light shield is provided to cover the surface of the guide cylinder along which the lens holder frames are slidable. The frames each have a pair of radial connecting spokes extending through slots in the light shield, to connect the support of the movable lenses to the sliding member guided by the guide cylinder, so that the light shield extends to beyond the rearmost position of the forward movable lens and undesired reflection at the sliding surfaces of the movable lens frame and of the guide cylinder is prevented.
Abstract:
An RFID tag has an IC chip and an antenna connected to the IC chip, the RFID tag including: a spacer that has elasticity; a first locking section that is formed around the IC chip; a second locking section that is arranged in a position apart from the first locking section across the spacer, is displaced toward the first locking section and locked on the first locking section by pressing force with which the spacer is pressed, and applies reactive force against the pressing force around the IC chip via the first locking section when the pressing force is removed; and a destruction section that destroys the IC chip or the antenna with the reactive force from the second locking section.
Abstract:
An RFID tag includes: a tag main body having a communication antenna, a circuit chip electrically connected to the antenna to perform wireless communication via the antenna, and a tabular sealing member in which the antenna and the circuit chip are enclosed; a print layer formed on a first surface of the tag main body by printing; and a protective film that covers the print layer. The print layer is formed only in a central area of the first surface surrounded by a marginal area of the first surface extending along the outer edge of the first surface. The protective film includes a covering portion that covers the print layer and an adhering portion that lies off the print layer while surrounding the outer edge of the print layer and adheres to the first surface.
Abstract:
The RFID tag includes: a main unit consisting of a base, a communication antenna that is wired on the base, a circuit chip that is electrically connected to the antenna and performs radio communication via the antenna, a chip reinforcing member covering the periphery of the circuit chip, an underside reinforcing member that is disposed at a position that sandwiches the base with respect to the chip reinforcing member, and a rubber cover member that covers these components; and protective layers that sandwich the main unit from the front and rear sides and have greater slipperiness than the slipperiness between the main unit and a contactant.
Abstract:
A method of manufacturing RFID tags. A base sheet member is formed by fixedly attaching unit base substrates to a belt-like first sheet member at predetermined space intervals. Each unit base substrate is formed with an antenna pattern and has a non-contact communication-type IC chip mounted thereon. An upper-layer sheet member is formed by arranging reinforcing members between elastic, belt-like second and third sheet members, and is laminated on a surface of the first sheet member toward the unit base substrates such that each IC chip and each reinforcing member overlap each other in plan view. Regions each containing one unit base substrate are sequentially cut out from a laminate of the upper-layer sheet member and the base sheet member, thereby making RFID units.
Abstract:
A non-contact storage medium fixing structure includes a non-contact storage medium that has a memory unit which stores predetermined information of an object to be controlled, a pair of wire connection guide members respectively provided at at least two positions on a body of the non-contact storage medium, and a wire connection member that fixes the non-contact storage medium at a predetermined position of the object to be controlled, by way of the pair of wire connection guide members.