摘要:
An optical switch of the present invention comprises an optical fiber arranging member in which tip ends of a plurality of first optical fibers are juxtaposed, a movable arm facing the optical fiber arranging member and fixing a tip end of a second optical fiber, and a drive mechanism For driving at least one of the optical fiber arranging member and the movable arm, for switching of optical connection, in an arrangement direction of the first optical fibers and in a direction perpendicular to the arrangement direction of the first optical fibers to optically couple the second optical fiber with the first optical fiber, wherein the optical fiber arranging member and the movable arm are encased in a sealing case and wherein an antireflection agent is filled in the sealing case.
摘要:
Color layers of a color filter obtained by exposing a transparent substrate to light from the back side followed by development may have a defect of layer unflatness produced due to unevenness caused by contamination with foreign matters. The defect can be repaired by eliminating the defective part of the color layers to produce a blank there, optionally filling the blank with a negative photosensitive composition containing a black colorant and returning the thus modified color filter to an appropriate step in the production line. The color filter repaired is used to fablicate multi-color display devices which are by no means inferior in display qualities to those fablicated using a color filter having no defect originally.
摘要:
In a phased-array antenna apparatus of this invention, one of the transmit/receive modules of each of radiators is set in a receiving operation state in accordance with a control signal from an arithmetic processing unit. An RF reference signal from an exciter is radiated in the air from a reference antenna and received by the transmit/receive modules in the receiving operation state. Thereafter, the signals are frequency-converted by the receiver, and element data are extracted from the signals by a beam forming section. The arithmetic processing unit detects the phase and amplitude data of the reception signals from the transmit/receive modules on the basis of the element data, and compares the detected data with the past phase and amplitude data of the transmit/receive modules, thereby calculating correction data and weight data for the transmit/receive modules.
摘要:
A color filter having an improved uniformity of color layer thickness is industrially advantageously, manufactured by an electrodeposition method using as a counter electrode a wire netting-form electrode.
摘要:
There is provided a radar apparatus wherein a local signal having a coherent sine wave is modulated to generate a composite signal of two signals modulated by different modulation functions. The composite signal is transmitted as a transmission signal, and a reception signal associated with the transmitted signal is separated into two signal components modulated by the different modulation functions. A difference between the two signal components is found, thereby removing a reflection signal from a static clutter and extracting a signal component which has been frequency-deviated by a moving target. Thus, the moving target is displayed. The transmission frequency can be quickly changed without losing the function of detecting the moving target.
摘要:
In a double bulb type halogen lamp, a sealed space between the inner surface of an outer bulb and the outer surface of the inner bulb in which a coiled filament is disposed is filled with a weak oxidation gas to avoid deoxidation of the optical interference film composed of metal oxide substances exposed to the sealed space.
摘要:
In a process for purifying an ester with little contamination by catalytic metal components in a high yield which comprises treating an esterification reaction mixture with a basic substance, said esterification reaction mixture being obtained by reacting an organic carboxylic acid or its anhydride with an alcohol in the presence of an organometallic compound as an esterification catalyst, and purifying the product in a manner known per se; the improvement wherein prior to said treatment with the basic substance, water is added to the esterification reaction mixture and the mixture is heated.
摘要:
An inductance element has a first core portion having a winding frame portion; a coil provided on the winding frame portion; a ring-shaped member having an insertion hole to dispose the first core portion therein; and a terminal member having an bonding arm to be fixed to the ring-shaped member via an adhesive member, and a mounting portion.
摘要:
A holder capable of protecting an optical connector ferrule from an external shock, or the like and executing a fusion-splice of a short optical fiber not to take out the optical connector ferrule from the holder is obtained.A holder for holding a connector plug equipped with an optical connector ferrule to which a short optical fiber is fitted and a plug frame for covering an outer periphery of the optical connector ferrule therein, wherein, when the short optical fiber together with the holder is fitted to a fusion splicing apparatus that fusion-splices the short optical fiber and other coated optical fiber, the short optical fiber extended from the plug frame is positioned in a fusion position.
摘要:
There is disclosed a speech processing device in which prediction taps for finding prediction values of the speech of high sound quality are extracted from the synthesized sound obtained on affording linear prediction coefficients and residual signals, generated from a preset code, to a speech synthesis filter, speech of high sound quality being higher in sound quality than the synthesized sound, and in which the prediction taps are used along with preset tap coefficients to perform preset predictive calculations to find the prediction values of the speech of high sound quality. The speech of high sound quality is higher in sound quality than the synthesized sound. The device includes a prediction tap extracting unit (45) for extracting, from the synthesized sound, the prediction taps used for predicting the speech of high sound quality, as target speech, the prediction values of which are to be found, and a class tap extraction unit (46) for extracting class taps, used for classifying the target speech to one of a plurality of classes, from the above code. The device also includes a classification unit (47) for finding the class of the target speech based on the class taps, acquisition unit for acquiring the tap coefficients associated with the class of the target speech from among the tap coefficients as found on learning from class to class, and a prediction unit (49) for finding the prediction values of the target speech using the prediction taps and the tap coefficients associated with the class of the target speech.