摘要:
An electromagnetic shutter control device for controlling opening and closing operation of the shutter of a compact folding camera includes a bobbin having a magnetic winding therearound, a stationary permanent magnet over which the bobbin fits for magnetically actuated movement in a longitudinal direction, and guide elements for constraining movement of the bobbin in the longitudinal direction only. The permanent magnet acts to maintain the bobbin in a normal position at the terminal end of its movement coinciding with the closed position of the shutter. Energization of the magnetic winding actuates the bobbin in order to thereby actuate the shutter to the open position. The bobbin and the permanent magnet are particularly formed with a rectangular configuration so that the electromagnetic control device may be shaped to enhance and facilitate the compactness of a camera with which it is utilized.
摘要:
In the disclosed circuit, an electromagnetically driven shutter is opened and closed by an electromagnetic drive device. A detector senses the current through or the voltage across an exciting member of the electromagnetic drive. A drive circuit is controlled by a comparator which compares the output of a constant voltage source with the output of the detector. The drive circuit is regulated so that when the shutter is opened and closed, the current is maintained at predetermined values so as to always keep the shutter characteristics constant.
摘要:
In the drive system disclosed, a first power source supplies a driving current to drive a moving member of an electromagnetic shutter driving device in one direction or in the reverse direction a second power source device consisting of a DC booster circuit, a capacitor, etc.; a photo-to-electric converter circuit discerns the brightness level of an object to be photographed and controls the outputs of the first and second power source devices to shift between these two outputs. An automatic change-over supplies the output of the second power source to the electromagnetic shutter driving device when the level of the output of the photo-to-electric converter circuit is equal to or above a predetermined level and supplies the output of the first power source to the electromagnetic shutter driving device when the output level of the photo-to-electric converter circuit is lower than the predetermined level.
摘要:
To separate a module as a description of a service from another that gains access to sensors and actuators used in the module. The present invention provides cooperated filtering with realtime and non-realtime system including a realtime system to which sensors and actuators are coupled and a non-realtime system coupled to a network, wherein processes to determine operations by the non-realtime system or the realtime system are performed by each of input processing units that process input information from the sensors coupled to the realtime system, service processing units that determine operations of the actuators on the basis of data initialized by the non-realtime system, and output processing units that prepare data used for operating the actuators.
摘要:
A system and program for a proxy server that forwards an access request from a client to a data server and forwards response data from the data server to the client. The proxy server includes a means for storing a first address location and an encoding format of the response data. The proxy server also includes a means for receiving a subsequent access request from the client, which includes a second address location encoded by the encoding format. A means is present in the proxy server for comparing the second address location to the first address location to determine if the second address location is related to the first address location. The proxy server also includes a means for decoding the second address location based on the encoding format in response to a determination that the second address location is related to the first address location.
摘要:
In a method for manufacturing an electron tube including a front substrate and a back substrate, a wiring and an electrode are formed on the front substrate and/or the back substrate. A component is mounted on the front substrate and/or the back substrate. A ring-less getter is mounted on at least one of the front substrate, the back substrate and the component. A vessel is assembled and sealed so that the front substrate faces the back substrate. A light is irradiated on the ring-less getter from outside of the sealed vessel, thereby activating the ring-less getter.
摘要:
A network system including a management device with both a status managing unit for collecting status information on a terminal status and a terminal instructing unit for transmitting a shift start message to the terminal to make transfer data to the server on the basis of the status information collected by the status managing unit. The terminal includes a determining unit for determining data transfer in response to the shift start message, a data transferring unit for transferring the data to the server when the determining unit determines the data transfer, a storage device control unit for erasing the data from a storage device after completion of data transfer, and a thin client shifting unit for causing the terminal to function as a thin client after erasure of data.
摘要:
In a network system, which has a first computer belonging to a first network, a second computer belonging to a second network, and a first router and a second router belonging to a third network, wherein the first computer and the second computer are connected through a logical path built between the first router and the second router, wherein the first, second and third network are connected to one another, wherein the first and second network and the third network are independently operated; the first router stores as its first address an address used by the first network but not used by the first computer, or an address used by the second network but not used by the second computer and, based on the first address, sends a first packet and receives a second packet corresponding to the first packet.
摘要:
An electron tube includes at least one metal film formed on a base, at least one linear member provided above the base, and at least one additional member for connecting said at least one linear member to said at least one metal film. The at least one linear member is connected to the at least one metal film by welding the at least one additional member to the at least one metal film.
摘要:
An electron device such as a fluorescent display tube is provided, wherein a simple ring-less getter can be simply fixed and arranged with a large degree of freedom. The ring-less getter, G11 to G13, is securely fixed to the inner surface of the glass anode substrate 111, using laser beams. The laser beam is irradiated onto the ring-less getter, G11 to G13, from outside the anode substrate 111. Thus, the laser beam passes through the anode substrate 111, thus heating and melting the ring-less getter, G11 to G13. The corresponding inner surface of the anode substrate 111 is melted trough the heating. In cooling, the portion where the ring-less getter, G11 to G13, and the anode substrate 111 are in a molten state is solidified, so that the ring-less getter, G11 to G13, is bonded to the anode substrate 111. The ring-less getter, G11 to G13, is shaped arbitrarily through press-working a getter material.