摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A wireless tag system does not require any anti-collision process or, if an anti-collision process is required, can reduce the number of tags that need to participate in the anti-collision process to make the anti-collision process proceeds fast. The wireless tag system comprises a plurality of wireless slave tags which have respective unique IDs, a plurality of wireless master tags arranged for the slave tags and storing the unique IDs of the slave tags and a wireless tag access control device which accesses the master tags to acquire the unique IDs of the slave tags from the master tags and subsequently accessing the slave tags by using the acquired unique IDs of the slave tags.
摘要:
There is provided an electronic transaction apparatus (e.g., an electronic money terminal) for processing a transaction engaged in by parties facing each other during which one party (a customer) confirms transaction information entered by the other party (a waiter), the direction in which the transaction information is displayed on a display unit of the apparatus is automatically reversed. As a result, the screen display can be directed towards the party (the customer) who must confirm transaction information without the electronic transaction apparatus being physically reversed.
摘要:
A disk-cartridge-type adapter is shaped like a disk cartridge. The adapter has an insertion detector and a rotation detector. Power supply to a controller of the adapter is enabled when the adapter is inserted into a disk cartridge drive. Power supply to other parts of the adapter is enabled when a motor of the disk cartridge drive starts to rotate. This arrangement reduces the power consumption of the adapter.
摘要:
An electronic transaction apparatus (e.g., an electronic money terminal) for processing a transaction engaged in by parties facing each other during which one party (a customer) confirms transaction information entered by the other party (a waiter), the direction in which the transaction information is displayed on a display unit of the apparatus is automatically reversed. As a result, the screen display can be directed towards the party (the customer) who must confirm transaction information without the electronic transaction apparatus being physically reversed.
摘要:
A card unit processing apparatus can conduct various processes on a card unit so as to realize multi-functioning. The card unit processing apparatus is attached a card unit with a storage unit thereto to conduct processes on the card unit, which has a communicating unit, a display unit, a control unit, a power source, a first key pressed when a processing function to be performed on the card unit is selected, a second key pressed when detailed data relating to the function selected by pressing the first key is selected, and a third key pressed when the data selected by pressing the first key and the second key is determined, wherein the control unit conducts controlling operations according to presses of the first key, the second key and the third key. This invention is applied when a card unit such as an IC card, an optical card, a radio card or the like is used as a portable medium for electronic money, for example.
摘要:
A process for preparing a magnetic recording medium by coating a magnetic coating material on a non-magnetic support and then drying the above magnetic coating material, which comprises imparting a magnetic field to said magnetic coating material with a magnet which rotates with the rotational surface at an angle of 5.degree. to 30.degree. relative to the surface of said support prior to drying of said magnetic coating material on said support.