摘要:
A thermoelectric conversion module having a large capacity and a curved surface is manufactured by immersing a honeycomb structural body having a number of through holes, openings of every other through holes being closed by clogging members, into a semiconductor material melt of one conductivity type to suck the semiconductor material melt into through holes whose openings are not closed, cooling the thus sucked semiconductor material melt to form semiconductor elements of one conductivity type, immersing again the honeycomb structural body after removing said clogging members into a semiconductor material melt of the other conductivity type to suck the semiconductor material melt into the through holes, cooling the thus sucked semiconductor material melt to form semiconductor elements of the other conductivity type, cutting the honeycomb structural body into a plurality of thermoelectric conversion module main bodies, and providing metal electrodes of both surfaces of a thermoelectric conversion module main body such that alternate semiconductor elements of one and the other conductivity types are connected in series.
摘要:
A thermoelectric conversion module having a large capacity and a curved surface which can be secured to a corresponding curved surface of a base member is manufactured by inserting N type and P type semiconductor strips into through holes formed in a honeycomb structural body, filling spaces between walls defining the through holes and the semiconductor strips with an electrically insulating filler members made of an easily deformable material such as polyimide resin and silicone resin, cutting the honeycomb structural body into a plurality of thermoelectric conversion module main bodies each having a desired surface configuration, and providing metal electrodes on both surfaces of a thermoelectric conversion module main body such that alternate N type and P type semiconductor elements are connected in cascade.
摘要:
A thermoelectric conversion module having a large capacity and a curved surface is manufactured by immersing a honeycomb structural body having a number of through holes, openings of every other through holes being closed by clogging members, into a semiconductor material melt of one conductivity type to suck the semiconductor material melt into through holes whose openings are not closed, cooling the thus sucked semiconductor material melt to form semiconductor elements of one conductivity type, immersing again the honeycomb structural body after removing the clogging members into a semiconductor material melt of the other conductivity type to suck the semiconductor material melt into the through holes, cooling the thus sucked semiconductor material melt to form semiconductor elements of the other conductivity type, cutting the honeycomb structural body into a plurality of thermoelectric conversion module main bodies, and providing metal electrodes of both surfaces of a thermoelectric conversion module main body such that alternate semiconductor elements of one and the other conductivity types are connected in series.
摘要:
An optical information recording and/or reproducing apparatus for recording and/or reproducing information with a light beam in or from a card information recording medium provided with a plurality of linear tracks, includes a card holder on which the medium is mounted, an optical head for projecting the light beam toward the medium, and a card holder moving mechanism for moving the card holder in a transverse direction to the tracks. An optical head moving mechanism translates the optical head in a direction along the tracks, and a holding mechanism provided below the card holder, holds the medium on the card holder.
摘要:
A compact, low-cost combined transmitting/receiving optical communications module, which is suitable for use in a TCM system and which is capable of normal operation over a particularly wide temperature range in optical communications equipment, is provided. The optical transmitting/receiving section for this purpose has a laser diode which outputs a transmitted optical signal, a combined monitor/receiving photodiode which not only monitors the optical output signal from the laser diode during a transmitting period, but also receives the input optical signal from the transmission path during the receiving period, and an optical mixer/divider which performs transmitting/receiving mixing and dividing between the transmission path, the laser diode, and the photodiode. A drive section has a transmitting/receiving switching circuit which performs time-division transmitting/receiving switching and a threshold control circuit which performs successive control of the bias current of the laser diode so that the optical noise output monitored by the photodiode is maximized.
摘要:
A bundle of permselective hollow fibers is disclosed, containing a plurality of filaments having a fineness of from 0.05 to 20 denier at a filament-to-hollow fiber ratio of from 2 to 3000. The filaments intermingle with the hollow fibers substantially lengthwise over the length of the hollow fibers, and substantially all of the filaments each engage with at least one of the hollow fibers, thereby placing the hollow fibers into an inseparable bundle. The bundle has not only a high packing ratio of hollow fibers, but also an effective arrangement for efficiently exerting a high performance of each hollow fiber. The bundle can be constructed into a fluid separator, which is useful for dialysis, ultrafiltration, osmosis, reverse osmosis, pressure separation of gas mixtures and the like.
摘要:
A patterned structure including a plurality of patterned sheet members which have respective configurations and which are partially superposed on each other and which cooperate with each other to define a plurality of voids. At least one of the sheet members includes a thin-walled portion whose thickness is smaller than a thickness of the other portion. The thin-walled portion is formed by etching the appropriate sheet member or members. The thin-walled portion of one sheet member engages the corresponding thin-walled portion or the other portion of the other sheet member or members.
摘要:
A printing head for thermally printing on a recording medium by using an electrically resistive layer provided on a film or ribbon or on the medium. The head includes a thermal head having a substrate, and a plurality of recording electrodes disposed on the substrate. Each electrode has an electrical contact portion for electrically contacting the resistive layer of the film, ribbon or medium. The contact portions of the two electrodes cooperate to energize the resistive layer, so that the energized portion of the resistive layer generates Joule heat which either transfers ink material of an ink layer onto the ordinary recording medium, or which produces color on the surface of the thermosensible recording medium. The substrate of the head is made of a material having a low wear resistance, and the electrical contact portion of each electrode has a thickness of at least one micron and is made of an electrically conductive material for resisting oxidation deterioration thereof. The conductive material is selected from the group consisting of: a metal silicide; at least one metal selected from the group consisting of chromium, titanium, tantalum, zirconium, hafnium and niobium; at least one alloy or metal compound which contains at least one of the metals indicated above.
摘要:
A printing apparatus for printing on a recording medium by using an ink film which has an electrically resistive layer and a thermally fusible and transferable ink layer. The apparatus includes a thermal head which has a substrate, and a plurality of recording electrodes disposed on the substrate. Each electrode has an electrical contact portion for contacting the resistive layer of the ink film. The contact portions of pairs of electrodes cooperate to energize the electrically resistive layer of the ink film, so that the energized portion of the resistive layer generates Joule heat for heating the corresponding portion of the ink layer, thereby softening ink material and transferring the softened ink material onto the recording medium. The substrate of the thermal head is made of a material having a low wear resistance, and the electrical contact portion of each electrode of the thermal head consists essentially of an electrically conductive material selected from the group consisting of: a metal silicide; at least one metal selected from the group consisting of chromium, titanium, tantalum, zirconium, hafnium and niobium; at least one alloy which contains at least one of the metals indicated above; and at least one metal compound which contains at least one of the metals.
摘要:
A thermal transfer type printing device, for instance, a character printer having a thermal head for use in printer, copier, facsimile device, etc. and ink medium such as ink ribbon, ink sheet or the like. One of a plurality of ink sheets is selectively used and a print control is performed in accordance with a sort of the ink sheet. The printing device comprises a thermal head, ink sheets, installment means capable of selecting one of ink sheets and selectively installing the same on the printing device, a heat energy source, and switching means for changing heat energy which drives the thermal head depending on the sort of ink sheet to be selected.