摘要:
The present invention provides a coated optical fiber in which a silica type optical fiber is coated with n layers (n being an integer of 2 or greater) of UV-curable resin, wherein the sum of respective contraction stress indices FI defined in the n layers of UV-curable resin by the following expression: FI [N]=(Young's modulus [MPa] of the UV-curable resin layer at −40° C.)×(cross-sectional area [mm2] of the UV-curable resin layer)×(effective linear expansion coefficient [10−6/° C.]/106)×(temperature difference 190[° C.]) is 3 [N] or less. The present invention can sufficiently prevent transmission characteristics from deteriorating in a low temperature environment.
摘要:
When a gain control circuit is its maximum gain, an offset adjusting circuit generates an offset adjusting voltage so that an offset voltage included in an output signal of this gain control circuit becomes a target voltage within a dynamic range of a digital correction unit, and a control circuit adjusts an offset by adding the offset adjusting voltage to a control signal from a processing circuit in an adding circuit. In this case, a residual offset voltage included in an output signal of this gain control circuit is corrected by a digital correction unit. All of the electrical offset in the analog circuitry are not cancelled, but the offset adjustment is carried out to a range correctable by the digital correction circuit.
摘要:
The present invention provides an ink-jet recording black ink containing at least water, a water-soluble organic solvent and a self-dispersible carbon black, and an ink-jet recording ink set and an ink-jet recording method using the ink-jet recording black ink. A volume mean diameter of dispersed particles contained in the black ink is in a range of 85 to 115 nm, and a volume of dispersed particles having a particle diameter of 0.5 to 1.0 μm contained in the black ink is in a range of 0.001 to 0.03% relative to a volume of the ink.
摘要:
In a method of treating a surface of a face panel for an image display including forming a film on the surface using coating materials, the film is formed of at least two layers including a first layer formed by a spray coating method and a second layer formed by a spin coating method to be superposed on the first layer. Thus, a face plate having antireflection/antistatic effects and providing high-resolution images can be obtained with high efficiency.
摘要:
A discharge port is formed in a bottom surface of ink tank. The ink tank is made to communicate with a waste ink tank by connecting the discharge port to the waste ink tank in a position lower than the discharge port, and a part of connection member is openable/closable by a valve. If the connection member is opened, ink is discharged from the discharge port of the ink tank to the waste ink tank. If impurities are deposited on the bottom surface of the ink tank, the impurities can be discharged with ink from the discharge port to the waste ink tank, thereby clogging in the nozzle head due to impurities can be reliably prevented.
摘要:
An image forming apparatus including a plurality of developing devices, a plurality of developing device assemblies, and a controller. At least one developing device is provided for each type of toner to form multi-color images. Each developing device assembly carries a plurality of developing devices. The controller switches the developing devices carried by one of the developing device assemblies, while the developing devices carried by another developing device assembly are operating.
摘要:
An image developing unit is provided which includes a toner cartridge and an image developing device. The image developing device includes a toner tank having a toner inlet capable of receiving a toner flowed out from a toner outlet of the toner cartridge and a toner supply route extending away from the toner inlet. A conveyor is provided for transporting away from the toner inlet the toner received by the toner supply route, and an image developing roller is set in the toner tank. The toner supply route has a plurality of toner supply ports arranged away from the toner inlet, and respective aperture areas of the toner supply ports gradually increase with distance from the toner inlet.
摘要:
A semiconductor substrate has a bulk region and a semiconductor region formed either on a buried insulating film or on a cavity region. The bulk region contains a plurality of memory cells, sense amplifiers and column selection gates, while the semiconductor region contains word line selection circuits and column selection circuits.
摘要:
A method for injection-molding a plastics propeller fan by using a fixed-side mold section and movable-side mold section, comprises the steps of providing a movable core at an area corresponding to a thicker portion of a blade section of the propeller fan; after a predetermined amount of plastics material has been injected into a blade space of a mold cavity defined by the fixed-side mold section, movable-side metal section and movable core and conforming to the propeller fan, pushing out the movable core into the mold cavity and, after this step, bringing the movable core back to a normal position conforming to a mold shape defining the blade space and forming a proper fan.
摘要:
A heat exchanger is constructed by tubes, corrugated fins and head pipes, which are assembled together. Herein, the tube is constructed by bending a flat plate whose surfaces are clad with brazing material to form a first wall and a second wall, which are arranged opposite to each other with a prescribed interval of distance therebetween to provide a refrigerant passage. Before bending, a number of swelling portions are formed to swell from an interior surface of the flat plate by press. By bending, the swelling portions are correspondingly paired in elevation between the first and second walls, so their top portions are brought into contact with each other to form columns each having a prescribed sectional shape corresponding to an elliptical shape or an elongated circular shape each defined by a short length and a long length. The columns are arranged to align long lengths thereof in a length direction of the tube corresponding to a refrigerant flow direction such that obliquely adjacent columns, which are arranged adjacent to each other obliquely with respect to the length direction of the tube, are arranged at different locations and are partly overlapped with each other with long lengths thereof in view of a width direction perpendicular to the length direction of the tube. The tubes, corrugated fins and head pipes are assembled together and are then placed into a heating furnace to heat for a prescribed time.