摘要:
When trichloroisocyanuric acid is produced by a process which comprises supplying unreacted chlorine from a second reaction zone to a cooled mixture of cyanuric acid and an aqueous alkali solution in a first reaction zone to form a partially chlorinated alkali salt of cyanuric acid, and introducing the reaction product of the first reaction zone and chlorine into the second reaction zone to complete the chlorination of the reaction product from the first reaction zone, the supply of the chlorine into the second reaction zone is so controlled as to ensure that the mixture in the first reaction zone be maintained at a temperature of 5.degree. C. to 20.degree. C. The second reaction zone is advantageously defined by a vertically disposed loop-shaped reactor.
摘要:
A method of producing a semiconductor device such as a semiconductor laser having a controllably disordered superlattice. The superlattice is grown epitaxially and in the same epitaxial growth process a heavily selenium doped semiconductor layer is also grown in a known spatial relationship to the superlattice. The doped layer is patterned as by etching and then the device is annealed to diffuse selenium impurities from the doped layer. The time and temperature of annealing are controlled such that the impurities diffuse into and thereby disorder regions of the superlattice layer, leaving a nondisordered region which can serve as a resonator in a laser.
摘要:
A method of diffusing Zn into AlGaInP using Al.sub.x G.sub.1-x As (0.ltoreq.x.ltoreq.1) as a diffusion stopping at a position of predetermined depth from the surface of the AlGaInP, or using Al.sub.x Ga.sub.1-x As (0.ltoreq.x.ltoreq.1) as a diffusion mask which is disposed on the surface of the AlGaInP.
摘要翻译:使用AlxG1-xAs(0≤x≤1)将Zn扩散到AlGaInP中的方法作为在距离AlGaInP的表面的预定深度的位置处的扩散停止,或者使用Al x Ga 1-x As(0≤x≤1) = 1)作为扩散掩模,其设置在AlGaInP的表面上。
摘要:
In a mounting structure of an acoustic component for mounting the acoustic component to a casing of an electronic equipment, the acoustic component is fitted in a cylindrical hole of a spacer that is formed of a resilient material. The spacer is fitted in a cylindrical hole of a mounting part which fits in or forms part of a casing of the electronic equipment. The spacer and the mounting part have a sound path aperture for allowing the passage of sound into and out of the casing. The mounting part is provided with a sound path groove along its outer surface for communicating with the sound path aperture of the mounting part. Because of the sound path groove, an accidental placement of an obstacle, such as a finger, cannot block the passage of the sound into or out of the sound path aperture.
摘要:
A semiconductor laser includes a semiconductor substrate of first conductivity type having a ridge extending in a direction substantially parallel to the direction of the light guide only in the neighborhood of the resonator end surface; a lower cladding layer of first conductivity type, an active layer, and an upper cladding layer of second conductivity type produced one after the other on the substrate in the above-mentioned order in such a manner that the portion of the active layer above the ridge is thinner than the portion of the active layer that is inside the laser resonator removed from the resonator and surface.
摘要:
A control system for a hydraulic vehicle having a pair of bidirectional travel motors driven by respective pumps via respective travel valves, and implement actuators, including a swing motor, driven by the pumps via two parallel connections of pilot-operated implement valves. For making possible the straight travel of the vehicle, either forwardly or rearwardly, while any of the implement actuators is being driven by either pump, a straight travel valve is provided for the on-off control of communication between the forward travel ports, and between the rearward travel ports, of the two travel motors. Normally held closed under spring pressure, the straight travel valve is pilot opened by a series connection of two straight travel control valves, which delivers pilot control fluid to the straight travel valve when the travel valves are both hand operated to set the two travel motors into rotation in the same direction. The straight travel control valves receive the pilot control fluid from implement control valves provided for the pilot actuation of the implement valves. Thus the two travel motors when set into rotation in the same direction are driven by the combined power fluid from the two pumps if then any of the implement control valves is being operated for activating the corresponding implement actuator or actuators.
摘要:
A device for providing a line of illumination in an optical reader, comprises an internally reflecting body having an elliptical reflecting surface joined to a part-cylindrical reflecting surface. A light source is disposed on one focal line of the elliptical surface, and a plate-like light guide has its light-receiving end disposed on the other focal line of the elliptical surface. One of the two focal lines of the elliptical surface is also the center of curvature of the part-cylindrical surface. The internal reflection and re-reflection of the light in the light guide ensures that the line of light emerging from the exit end of the light guide will be of uniform intensity throughout its length.
摘要:
The present invention provides a method for manufacturing a liquid crystal device having no wrinkles and distortion between a hard coat layer and a base material film, and no peeling of the hard coat layer. This method stacks a sealing layer having an ultraviolet curable adhesive; a front plate composed of a glass or an acrylic resin; an adhesive layer; and a base material film, which has a resin layer containing an adhesion improving agent, and a hard coat layer on the film surface. The resin layer contains 0.005-0.5 parts of the per 100 parts of a binder resin. The adhesive improving agent has an absorption maximum peak at a wavelength of 260-400 nm at the time of curing the sealing layer by applying ultraviolet rays from the hard coat layer side.
摘要:
A cellulosic resin film which is wide and, despite this, is extremely reduced in breakage during a stretching step; a process for producing the film; and an antireflection film, a polarizer, and a liquid-crystal display each comprising or employing the film. The process for cellulosic resin film production comprises casting a liquid cellulosic resin on a support to form a web, peeling the web from the support, subsequently drying the web in a first edge gripping step (105) while gripping both edges, temporarily eliminating the edge gripping, and then stretching both edges in the width direction in a second edge gripping step (109). The process is characterized in that the first edge gripping step is followed by a heat treatment step in which both edge parts of the web relieved from the edge gripping are heated with heating rolls (107 and 108).