摘要:
Three alternate fiber ribbon interconnections are described for optically interfacing two 4-channel optoelectronic transceiver modules, each module having separate, spaced apart transmitter and receiver diode arrays. In each instance the optical interconnection is made by either an 8 fiber or a 12 fiber ribbon and associated fiber end connectors.
摘要:
Optoelectronic transceiver modules having photoemitter and photodetector arrays spaced from each other are interfaced to a single optical fiber ribbon having evenly spaced optical fibers.
摘要:
The shaft and bush device includes a shaft, a bush having a slit in its axial direction and a pressing member which forces the bush inwardly to contact with the shaft so that the bush and shaft are pressed to each other without any clearance. The shaft and the bush may be a screw shaft and a nut engaging the screw shaft or a pin and a nut engaging the pin.A tilting steering apparatus has this shaft and bush device. Namely the device is used as a pivot pin connecting an upper bracket rotatably holding an upper steering shaft and main bracket fixed to a body of an automobile. The device is also used for an expansion-shrinking device which swings the upper bracket against the main bracket. The expansion-shrinking device has a screw shaft and nut which form the shaft and bush device.
摘要:
A fastening device for a tiltable steering shaft assembly of the type in which when shifted into a remote position upwardly from a pre-selected angular position, the steering wheel is automatically returned to the pre-selected angular position and locked at the same position only by depression of the steering wheel. The fastening device comprises a first manual lever arranged to release lock of the fastening device for permitting upward movement of the steering wheel to the remote position, and a second manual lever arranged to readjust the pre-selected angular position of the steering wheel in accordance with a user's physique, in which the first manual lever is cooperable with the second manual lever in operation of the latter to carry out readjustment of the pre-selected angular position of the steering wheel in a simple manner.
摘要:
A multi-cylinder engine comprising a carburetor housing forming therein at least two branch mixture passages. Each of the branch mixture passages is connected to a respective intake port. A throttle valve of the carburetor is provided for each cylinder. Each of the throttle valves is arranged in the respective branch mixture passage. A single common connecting passage and branch connecting passages which are connected to the common connecting passage are provided. Each of the branch connecting passages opens into the respective intake port in the vicinity of the rear face of the valve head of the corresponding intake valve. The common connecting passage is arranged adjacent to the exhaust port for heating the inner wall of the common connecting passage by the exhaust gas flowing in the exhaust port.
摘要:
An optical unit as used for an optical sensor, including a substrate, one or more optical elements fixedly supported by the substrate, and an protecting arrangement associated with the substrate and at least one of the optical elements, for protecting each associated optical element from thermal stresses exerted thereto due to a difference in thermal expansion coefficient between the substrate and the associated optical element. The protecting arrangement may consist of at least one intermediate body interposed between the substrate and the associated optical element. Each intermediate body has a thermal expansion coefficient close to that of the associated optical element. Alternatively, the protecting arrangement may consist of a constricted protecting portion such as protrusions or slots formed on one of the associated optical elements and the substrate, such that the protecting portion defines an adjoining interface between the optical element and the substrate, or is located adjacent to the adjoining interface.
摘要:
A multi-cylinder engine comprising a carburetor housing forming therein at least two branch intake passages. Each of the branch intake passages is connected to a respective intake port. A throttle valve of the carburetor is provided for each cylinder. Each of the throttle valves is arranged in the respective branch intake passage. A single common passage and branch connecting passages which are connected to the common passage are provided. Each of the branch connecting passages opens into the respective intake port in the vicinity of the rear face of the valve head of the corresponding intake valve.
摘要:
A multi-cylinder engine comprising a carburetor housing forming therein at least two branch mixture passages. Each of the branch mixture passages is connected to a respective intake port. A throttle valve of the carburetor is provided for each cylinder. Each of the throttle valves is arranged in the respective branch mixture passage and attached onto a common throttle shaft. A wedge shaped groove is formed on the bottom inner wall of each of the branch mixture passages, and the common throttle shaft is arranged in the wedge shaped groove for causing the mixture to flow only along the upper wall of the branch mixture passage. A single common connecting passage and branch connecting passages which are connected to the common connecting passage are provided. Each of the branch connecting passages opens into the respective intake port in the vicinity of the rear face of the valve head of the corresponding intake valve and is tangentially connected to the inner wall of the corresponding intake port, said wall extending circumferentially about the axis of the corresponding intake valve.
摘要:
Disclosed is a fiber coil reel 100 associated with an optical fiber 10 wound therearound to make a predetermined number of turns to be used for an optical fiber gyroscope comprising a fiber coil composed of the lengthy optical fiber 10 to make the predetermined number of turns, a coupler 22 for optically coupling an optical fiber 16 led from a light source to an optical fiber 20 to be led to a photodetector, and an optical IC chip arranged between the fiber coil and the coupler 22 and including a phase modulator and a polarizer mounted on an optical waveguide, wherein a space for winding the lengthy optical fiber 10 around the outer circumference is provided, and a through-hole 102 is provided at the central portion, through which a support shaft 74 of an assembling jig 70 is rotatably inserted. Accordingly, the optical fiber gyroscope can be assembled with ease, and it is possible to effectively reduce the production cost of the optical fiber gyroscope.
摘要:
An apparatus for displaying a three-dimensional image of a plurality of tomographic images by storing pictorial information of a tomographic image in an image convering element, forming interference fringes between a reading light beam which is transmitted through the image converting element and is modulated in accordance with the pictorial information stored therein and a reference light beam, and recording the interference fringes on a photographic plate. A three-dimensional image is reproduced by projecting the reference light beam onto the thus developed photographic plate. The image converting element is formed by a Pockels readout optical modulator. An intensity and position of a coherent light beam is modulated in accordance with the pictorial information of the tomographic image, and the thus modulated coherent reading light beam is made incident upon the Pockels readout optical modulator.