摘要:
An antenna for wireless apparatus which is placed in the vicinity of a conductive object is disclosed. The antenna for wireless apparatus includes a GND plate, a conductive plate parallel to the GND plate, two antenna elements, and two raising conductive plates. Each of the antenna elements includes a short-circuit conductive body and a radiation plate placed at an edge of the short-circuit conductive body. The two antenna elements are placed substantially parallel to a side surface of the conductive object with a distance of a half wavelength of a radio wave to be transmitted and received. The two raising conductive plates are placed close to the two antenna elements respectively and raise the conductive plate from the GND plate to a predetermined height.
摘要:
An on-vehicle film antenna is constructed with a loop antenna and a monopole antenna and attached to a vehicle windshield. The loop antenna has a first element set in length to correspond to a first radio wave of a first frequency band. One end of the first element is connected to a power supply near a border section between a vehicle chassis and the vehicle windshield, and the other end of the first element is connected to the vehicle chassis. The monopole antenna has a second element set in length to correspond to a second radio wave of a second frequency band. One end of the second element is connected to the power supply near the border section in common with the one end of the first element, and the other end of the second element is disconnected from the vehicle chassis.
摘要:
An on-vehicle film antenna is constructed with a loop antenna and a monopole antenna and attached to a vehicle windshield. The loop antenna has a first element set in length to correspond to a first radio wave of a first frequency band. One end of the first element is connected to a power supply near a border section between a vehicle chassis and the vehicle windshield, and the other end of the first element is connected to the vehicle chassis. The monopole antenna has a second element set in length to correspond to a second radio wave of a second frequency band. One end of the second element is connected to the power supply near the border section in common with the one end of the first element, and the other end of the second element is disconnected from the vehicle chassis.
摘要:
An on-vehicle film antenna is constructed with a loop antenna and a monopole antenna and attached to a vehicle windshield. The loop antenna has a first element set in length to correspond to a first radio wave of a first frequency band. One end of the first element is connected to a power supply near a border section between a vehicle chassis and the vehicle windshield, and the other end of the first element is connected to the vehicle chassis. The monopole antenna has a second element set in length to correspond to a second radio wave of a second frequency band. One end of the second element is connected to the power supply near the border section in common with the one end of the first element, and the other end of the second element is disconnected from the vehicle chassis.
摘要:
A receiver includes a circuit board and a dielectric antenna. The circuit board has a receiving circuit on a first surface, and a ground pattern on a second surface. The circuit board is disposed close to a rear window of a vehicle so that the ground pattern faces a roof panel. The dielectric antenna extends from an edge of the circuit board toward and along the rear window. As a result, the roof panel capacitively couples with the ground pattern, so that the roof panel becomes imaginary ground. The dielectric antenna functions as a monopole antenna with the imaginary ground. It is not influenced with a metallic material of the vehicle.
摘要:
A red light fluorescent material is disclosed which contains simultaneously phosphorus and at least one alkaline earth metal selected from among magnesium, calcium, strontium, and barium, each in an amount in the range of from 10.sup.-6 to 10.sup.-3 mol per mol of a europium-activated rare earth oxide fluorescent material substantially represented by the general formula, (L.sub.1-x Eu.sub.x).sub.2 O.sub.3, (wherein L stands for at least one element selected from among rare earth elements and x for a numerical value in the range of 0.01.ltoreq.x.ltoreq.0.20). This red light fluorescent material possesses the nature of manifesting high initial luminescent brightness (efficiency) and entailing only slight decline of efficiency during the lighting of lamp. A fluorescent lamp has a fluorescent material layer formed as deposited on the inner wall surface of a glass tube and containing as at least a red luminescent component the fluorescent material mentioned above. This fluorescent lamp is capable of repressing the degradation of luminescent efficiency and luminescent chromaticity by aging.
摘要:
A paper feeding device comprising a tray storing case attachable to and removable from a device housing; a rotatable tray, provided in the tray storing case, which rotates copy paper to a longitudinal and lateral feed position; and a mechanism for lifting up a paper-feed end of a paper holding plate provided in the tray when paper is to be fed. The mechanism is composed of a guide member provided in the device housing; a lift-up guide provided on a side face located on a paper-feed end of the tray; a first rotary bar provided in the tray storing case and driven by the guide member when the tray is attached thereon; and a second rotary bar, a spring and a lift plate driven by the lift-up guide when the tray is in the paper-feed position. The first and second bars are driven simultaneously, thus lifting up the paper-feed end of the paper holding plate. Alternatively, the mechanism comprises at least three springs provided between the tray and the tray storing case; a guide rib provided in the tray storing case; and a pivot pin, a wire and a slide plate provided on the paper holding plate. The guide rib causes the slide plate to rotate and the wire pulls the pivot pin downwards. A simplified and miniaturized mechanism that lifts up and lowers the paper holding plate is thus achieved.
摘要:
A feeding device including a cassette removably mounted in the main body of a copying machine to which the feeding device is adapted, a pivotal paper holding plate which is disposed within the cassette and capable of being raised, a lift member for raising the pivotal paper holding plate to an inclined dispensing position, disposed under the pivotal paper holding plate so as to pivot on a vertical plane, a rotary lift-up member for allowing the lift member to pivot thereon, the lift member being secured to the rotary lift-up member, a driving device for transmitting a driving force to the rotary lift-up member, a coupling device interposed in the driving device, for effecting and suspending the transmission of the driving force for rotating the rotary lift-up member, wherein when the cassette is taken out from the main body, the lift member pivots downward due to its own weight, thereby releasing the pivotal paper holding plate from its raised condition. With such an arrangement, even if the cassette is taken out from the main body when the pivotal paper holding plate is in its raised condition, the paper feeding end of the pivotal paper holding plate can be prevented from touching with the paper feed mechanism disposed within the main body, thereby avoiding damage to the contacted parts.
摘要:
A feeding device in accordance with the present invention includes an arm mounted such that one edge thereof is rotatably supported and is capable of moving freely in the horizontal plane, a rotating section rotatably supported by the other edge of the arm and is capable of rotating freely in the horizontal plane to at least two paper feed positions, i.e. longitudinal and lateral feed positions, and a pivotal paper holding plate that is capable of rising. A rotating device is rotatably mounted in the vicinity of a corner of the rotating section and moves back and forth in a straight line in a direction orthogonal to the paper feed direction and permits the rotating section to rotate. A flexible joint is provided which is capable of pivoting in at least two directions and supports the pivotal paper holding plate at one point located in the corner formed by a non-feeding side of the rotating section when the rotating section is set in the longitudinal feed position and the non-feeding side of the rotating section when the rotating section is set in the lateral feed position, such that the pivotal paper holding plate uses the non-feeding side of the rotating sections as fulcrums when the pivotal paper plate pivots and rises.
摘要:
A paper feeding apparatus is provided with a paper feed roller supported rotatably by an image forming system body via a roller shaft, a paper feeding table which can be drawn freely in the axial direction of the roller shaft from a paper feed opening of the image forming machine body, a paper feeding hopper guided and supported by the paper feeding table so as to be movable freely to and from the paper feed roller horizontally, and in a direction orthogonal to the axial direction of the roller shaft, and an interlocking device which moves the paper feeding hopper freely to and from the paper feed roller in an interlocking motion with the drawing and restoring operation of the paper feeding table. Thereby, when the paper feeding table moves backward from the front, the paper feeding hopper is moved to the side of the paper feed roller along guide rails by the interlocking device. Then, the paper feed roller is rotated and the paper feeding hopper is received in a predetermined position without slacking of the paper.