摘要:
An optical demultiplex circuit includes an optical circulator, a chirped fiber grating, and a fiber Bragg grating. The optical circulator has a first port for receiving an optical signal, a second port for outputting the optical signal input to the first port, and a third port for outputting the optical signal input to the second port. The chirped fiber grating selectively reflects optical signals output from the second port and outputs them to the second port. The chirped fiber grating has a wide reflection wavelength band and side lobes. The fiber Bragg grating is inserted between the second port and the chirped fiber grating and reflects, of the optical signals output from the second port, only optical signals in a narrow wavelength band corresponding to the side lobes of the chirped fiber grating.
摘要:
A sheet feeder providing accurate separation of an uppermost sheet from remaining sheets of a sheet stack stored in a hopper regardless of a size and rigidity of the sheets. The sheet feeder includes a sheet feed roller positioned in confrontation with the hopper for feeding the sheet in a sheet feeding direction. A wall of a frame confronts an outlet end portion of the hopper. The wall is provided with a slanted surface sloping toward the sheet feeding direction, and a stop member protrudable from or retractable into the slanted surface. A recessed portion is open to the slanted surface, and the stop member can be assembled to the recessed portion from an upper open side of the recessed portion. A pair of opposing side walls providing therebetween an upper open space are provided. A rotation shaft of the sheet feed roller can be assembled to the pair of side walls from the upper open space.
摘要:
A canned motor has a rotor having a rotor core and a rotor can covering an outer circumferential surface of the rotor core, and a stator disposed around the rotor with a gap left therebetween for rotating the rotor, the stator having a stator core and a stator can covering an inner circumferential surface of the stator core. The stator core has a plurality of slots defined therein at circumferentially spaced regular intervals and having respective open ends opening at the inner circumferential surface of the stator core, and a plurality of windings disposed in the slots, respectively. The slots include respective winding chambers with the windings housed therein, respective constricted throats disposed radially inwardly of the winding chambers, and respective stiffener chambers spaced radially inwardly from the constricted throats. A plurality of stiffeners are housed in the stiffener chambers, respectively.
摘要:
In an ink jet type print recording apparatus, when a purge gear is driven and a purge pump arrives at its origin position, an origin mark of a pump cam gear presses a cam receiver of a first actuator so that a movement transmitting portion of the first actuator presses a movement receiving portion of a second actuator. With this operation, a shutter of the second actuator is moved out of a common sensor and the common sensor is switched on. Furthermore, when a print sheet is supplied to a platen roller, a sheet detector of the second actuator is pressed by the print sheet, whereby the shutter is moved out of the common sensor and the common sensor is switched on. Various operations are performed on the basis of signals from the common sensor.
摘要:
An aqueous coating composition comprising a polyisocyanate compound and a fluorine-containing copolymer having hydroxyl groups, wherein the fluorine-containing copolymer having hydroxyl groups is a copolymer comprising 20-80 mol % of polymer units derived from a fluoroolefin and 0.1-25 mol % of polymer units derived from a monomer having a hydrophilic site, said polyisocyante compound and said fluorine-containing copolymer both being dispersed in water.
摘要:
An afocal zooming optical system includes a plurality of lens groups or components, in which some of the lens groups movable along the optical axis for zooming are included in the dioptry adjusting lens groups movable for dioptry adjustment, with others of the lens groups movable for zooming being excluded from said dioptry adjusting lens groups.
摘要:
The invention provides a printer where a continuous paper/cut paper changeover lever for changing over a continuous paper print mode and a cut paper print mode can be smoothly tuned so as to reduce a load on a drive mechanism and improve durability. A platen gear and a continuous paper/cut paper changeover lever at an end of a platen shaft, the platen gear is fitted to the outer periphery of the end of the platen shaft and fastened thereto by a pin. The continuous paper/cut paper changeover lever is fitted onto the outer peripheral portion of an extension portion of the platen gear. Engagement pawls of the continuous paper/cut paper changeover lever engage an engagement projection formed on a boss portion of the platen gear to be engageably held in a turnable manner relative to the boss portion of the platen gear.
摘要:
To prevent concurrent mounting of two tractor units on an upstream side and a downstream side of a platen of a printer, a rocker member is pivotally mounted by a pivot pin on a side plate of a chassis to which the tractor unit is attachable. The rocker member has an upper end portion disposed close to an upper lock pin of a downstream side mounting portion. The lower end portion of the rocker member is disposed close to a lower lock pin of an upstream side mounting portion. When the tractor unit is locked with the lower lock pin, the lower end portion of the rocker member is firmly locked in position against rotation, so that the upper end portion of the rocker member is no longer separable from the upper rock pin, and hence, is able to prevent another tractor unit from moving into that portion.
摘要:
A zooming monocular or zooming binoculars having an objective optical system and an eyepiece optical system, which includes at least one variable power lens group driven in the optical axis in the eyepiece optical system, a movable field stop which is provided to define the field of view, so as to move in the optical axis direction independently of the variable power lens group, and driving means for moving the movable field stop in association with the movement of the movable variable power lens group in the optical axis direction, along a track different from a track of the movable power lens group.
摘要:
The present invention provides a method of producing vinegar of stable quality with no musty odor by applying alcoholic fermentation to cereal not undergoing heat denaturation while controlling the amount of soluble nitrogen in alcohol MOROMI by adding an enzyme preparation composed of glucoamylase and yeast, subjecting it to solid/liquid separation and then conducting acetic acid fermentation directly the separated solution containing alcohol as the starting material.