Abstract: To provide a hollow fiber type semipermeable membrane which achieves both water permeability and salt rejection ability at high level, so as to conduct, with small membrane area, a water treatment utilizing concentration difference from liquid mixture of high concentration and high osmotic pressure. A hollow fiber type semipermeable membrane comprising cellulose acetate, characterized in that, between an aqueous solution of 25° C. having sodium chloride concentration of 35,000 mg/L and freshwater of 25° C. having sodium chloride concentration of 0 g/L at 0 MPa, the permeation flow rate flown from inner side to the outer side of the hollow fiber type semipermeable membrane is 60 to 180 L/m2/day, the outer diameter of the hollow fiber type semipermeable membrane is 100 to 350 ?m, the inner diameter thereof is 50 to 250 ?m and the hollow ratio thereof is 24 to 51%.

Abstract: A hollow fiber type semipermeable membrane which achieves both water permeability and selectivity in high level and performs efficient treatment using small membrane area utilizing the concentration difference from high concentration liquid having high osmotic pressure. The hollow fiber type semipermeable membrane is characterized in that, when an aqueous solution of 25° C. having NaCl concentration of 35 g/L and pressure of 1.0 MPa is flown into an outer side of the hollow fiber type semipermeable membrane having length of about 70 cm while freshwater of 25° C. having NaCl concentration of 0 g/L is flown into an inner side of one open end of the hollow fiber type semipermeable membrane and discharged from another open end at 10 kPa or less, the permeation flow rate is 30 to 70 L/m2/day. An inner diameter thereof is 50 to 200 ?m; and the hollow ratio thereof is 24 to 42%.

Abstract: Disclosed is a substrate for mounting light emitting element with a high positional accuracy and a method of fixing the substrate. A substrate for mounting light emitting element defines a first recess and a second recess in first side in a plan view. The first recess is defined by two corner portions and a straight portion which connects the two corner portions, and the second recess further includes at least two straight portions each narrowing toward the inner end portion.

Abstract: A light emitting device includes a substrate; a first metal film formed on the substrate; a plurality of light emitting elements arranged in a line, each comprising a second metal film on a lower face thereof, each having a quadrilateral outline; and a die bond placed between the first metal film and the second metal films to fix the second metal film on the first metal film. The substrate includes low wettability areas having wettability to the die bond lower than the first metal film. Each of the low wettability areas is disposed between two of the light emitting elements, and each of four sides of the quadrilateral outline is adjacent to the low wettability area different from the low wettability areas adjacent to one of the other three sides.

Abstract: To provide a hollow fiber type semipermeable membrane which achieves both water permeability and salt rejection ability at high level, so as to conduct, with small membrane area, a water treatment utilizing concentration difference from liquid mixture of high concentration and high osmotic pressure. A hollow fiber type semipermeable membrane comprising cellulose acetate, characterized in that, between an aqueous solution of 25° C. having sodium chloride concentration of 35,000 mg/L and freshwater of 25° C. having sodium chloride concentration of 0 g/L at 0 MPa, the permeation flow rate flown from inner side to the outer side of the hollow fiber type semipermeable membrane is 60 to 180 L/m2/day, the outer diameter of the hollow fiber type semipermeable membrane is 100 to 350 ?m, the inner diameter thereof is 50 to 250 ?m and the hollow ratio thereof is 24 to 51%.

Abstract: A light emitting device includes a substrate; a first metal film formed on the substrate; a plurality of light emitting elements arranged in a line, each comprising a second metal film on a lower face thereof, each having a quadrilateral outline; and a die bond placed between the first metal film and the second metal films to fix the second metal film on the first metal film. The substrate includes low wettability areas having wettability to the die bond lower than the first metal film. Each of the low wettability areas is disposed between two of the light emitting elements, and each of four sides of the quadrilateral outline is adjacent to the low wettability area different from the low wettability areas adjacent to one of the other three sides.

Abstract: A light emitting device includes: a substrate; a first metal film formed on the substrate; quadrilateral light emitting elements arranged in a line at an interval d1, with second metal films on lower faces, and a die bond fixes the first and second metal films together. A diagonal of the respective quadrilateral outlines of the light emitting elements is aligned with the line. One of a distance DL from a light emitting element on one end among the light emitting elements arranged in the line to an end of the substrate, and a distance DR from a light emitting element on the other end among the light emitting elements arranged in the line to an end of the substrate is equal to or shorter than the interval d1.

Abstract: Disclosed is a substrate for mounting light emitting element with a high positional accuracy and a method of fixing the substrate. A substrate for mounting light emitting element defines a first recess and a second recess in first side in a plan view. The first recess is defined by two corner portions and a straight portion which connects the two corner portions, and the second recess further includes at least two straight portions each narrowing toward the inner end portion.

Abstract: A hollow fiber type semipermeable membrane which achieves both water permeability and selectivity in high level and performs efficient treatment using small membrane area utilizing the concentration difference from high concentration liquid having high osmotic pressure. The hollow fiber type semipermeable membrane is characterized in that, when an aqueous solution of 25° C. having NaCl concentration of 35 g/L and pressure of 1.0 MPa is flown into an outer side of the hollow fiber type semipermeable membrane having length of about 70 cm while freshwater of 25° C. having NaCl concentration of 0 g/L is flown into an inner side of one open end of the hollow fiber type semipermeable membrane and discharged from another open end at 10 kPa or less, the permeation flow rate is 30 to 70 L/m2/day. An inner diameter thereof is 50 to 200 ?m; and the hollow ratio thereof is 24 to 42%.

Abstract: A hollow fiber type reverse osmosis membrane including cellulose acetate, characterized in that the filtration rate and the salt rejection rate when an aqueous solution having sodium chloride concentration of 1,500 mg/L is filtered from outer side to inner side of the hollow fiber type reverse osmosis membrane at 25° C. and 1.5 MPa pressure are 180 to 350 L/m2/day and 90.0 to 99.0%, respectively and the outer diameter, the inner diameter and the hollow rate of the hollow fiber type reverse osmosis membrane are 100 to 280 ?m, 50 to 200 ?m and 24 to 42%, respectively. The hollow fiber type reverse osmosis membrane preferably has a dense layer near the outer surface, and thickness of the dense layer is 0.1 to 7 ?m.

Abstract: A light emitting device includes: a substrate; a first metal film formed on the substrate; quadrilateral light emitting elements arranged in a line at an interval d1, with second metal films on lower faces, and a die bond fixes the first and second metal films together. A diagonal of the respective quadrilateral outlines of the light emitting elements is aligned with the line. One of a distance DL from a light emitting element on one end among the light emitting elements arranged in the line to an end of the substrate, and a distance DR from a light emitting element on the other end among the light emitting elements arranged in the line to an end of the substrate is equal to or shorter than the interval d1.

Abstract: A hollow fiber type reverse osmosis membrane including cellulose acetate, characterized in that the filtration rate and the salt rejection rate when an aqueous solution having sodium chloride concentration of 1,500 mg/L is filtered from outer side to inner side of the hollow fiber type reverse osmosis membrane at 25° C. and 1.5 MPa pressure are 180 to 350 L/m2/day and 90.0 to 99.0%, respectively and the outer diameter, the inner diameter and the hollow rate of the hollow fiber type reverse osmosis membrane are 100 to 280 ?m, 50 to 200 ?m and 24 to 42%, respectively. The hollow fiber type reverse osmosis membrane preferably has a dense layer near the outer surface, and thickness of the dense layer is 0.1 to 7 ?m.

Abstract: To provide a method for manufacturing a module having a selectively permeable membrane wherein the surface of the selectively permeable membrane thereof can be washed with good efficiency and further contaminants having been exfoliated from the surface of the membrane by a washing operation can be discharged from the inside of a housing with good efficiency; and the above module having a selectively permeable membrane. A module wherein a selectively permeable membrane is held in a housing and both ends of the above selectively permeable membrane are fixed, the both ends of the above selectively permeable membrane are fixed to an upper holder and an under holder connected by at least one washing tube, and then, the membrane is held in the housing; and a module having a selectively permeable membrane manufactured by the above manufacturing method.

Abstract: To provide a method for manufacturing a module having a selectively permeable membrane wherein the surface of the selectively permeable membrane thereof can be washed with good efficiency and further contaminants having been exfoliated from the surface of the membrane by a washing operation can be discharged from the inside of a housing with good efficiency; and the above module having a selectively permeable membrane. A method for manufacturing a module having a selectively permeable membrane, characterized in that in the manufacture of a module wherein a selectively permeable membrane is held in a housing and both ends of the above selectively permeable membrane are fixed, the both ends of the above selectively permeable membrane are fixed to an upper holder and an under holder connected by at least one washing tube, and then, the membrane is held in the housing; and a module having a selectively permeable membrane manufactured by the above manufacturing method.

Abstract: A wavelength tunable light source equipment provided with an external resonator light source having a wavelength selection structure inside it and lasing by a wavelength selected by this and a light path changer introducing at least part of the light emitted from the external resonator light source and including a spontaneous emitted light ingredient to the wavelength selection structure so that a wavelength of the light emitted from the external resonator light source and a wavelength selected by the wavelength selection structure become synchronized. Of the light emitted from the external resonator light source, the light introduced to the wavelength selection structure through the light path changer and emitted from it is made the output light.

Abstract: A wavelength tunable light source equipment provided with an external resonator light source having a wavelength selection structure inside it and lasing by a wavelength selected by this and a light path changer introducing at least part of the light emitted from the external resonator light source and including a spontaneous emitted light ingredient to the wavelength selection structure so that a wavelength of the light emitted from the external resonator light source and a wavelength selected by the wavelength selection structure become synchronized. Of the light emitted from the external resonator light source, the light introduced to the wavelength selection structure through the light path changer and emitted from it is made the output light.

Abstract: The present invention relates to an electro-optic probe, which includes the following components: a laser diode for emitting a modulating laser light according to control signals generated in a main body of the electro-optic sampling oscilloscope; a first lens for converting the modulating laser light to a parallel beam; a second lens for focusing the parallel beam; an opto-electronic element having a reflection film at a reflection-end; an isolator device disposed between the first lens and the second lens for transmitting the modulating laser light and separating a reflected beam produced at the reflection film into signal beams; and photo-diodes for converting optical energies of the signal beams separated by the isolator device into respective electrical signals; wherein, the signal beams to enter the photo-diodes are directed to propagate towards the laser diode, and the photo-diodes are disposed in a longitudinal direction of a probe casing.

Abstract: An electro-optic sampling probe is provided, capable of irradiating a plurality of excitation light beams on a plurality of light receiving portions mounted on an IC wafer which is an object for measurement.

Abstract: An electro-optic sampling probe is provided, capable of irradiating a plurality of excitation light beams on a plurality of light receiving portions mounted on an IC wafer which is an object for measurement. The electro-optic sampling probe comprises a plurality of excitation optical system modules which commonly uses an objective lens for condensing the excitation light beams on the IC wafer and a detachable portion for attaching and detaching the excitation optical system module, a second probe body for covering the optical path of a light beam emitted from the excitation optical system module is provided at the rear side of the IC wafer, and at least one of the plurality of excitation optical system modules have an optical axis which differs from those of other modules; thereby at least two excitation light beams can be irradiated on the light receiving portions on the IC wafer surface.

Abstract: In order to maintain accuracy of measurement, a temperature-insensitive electro-optic probe has a laser diode provided to emit a laser beam based on a control signal of an oscilloscope body, a collimator lens provided to convert the laser beam into a parallel beam; an electro-optic element having on an end face thereof a reflective coating, with the optical characteristics which are changed by propagating an electrical field via a metal pin provided at the end face on the reflective coating side, an isolator provided between the collimator lens and the electro-optic element, and adapted to transmit the laser beam emitted from the laser diode, in order to separate a light reflected by the reflective coating from the laser beam, a photodiode provided to convert the reflected light separated by the isolator into an electrical signal, a temperature detection section arranged to be in contact with optical components consisting the isolator, and to detect the temperature of the optical components and output the res