Abstract: The present disclosure aims to provide a photosensitive resin composition that can improve the surface roughness of a fluororesin suitable for use as a partition wall material. The present disclosure relates to a photosensitive resin composition containing: a fluororesin having a fluorine atom content of 20 to 60 mass %; a fluorine-containing surface modifier including a fluorine compound having a weight average molecular weight (Mw) of 1,000 to 15,000; a base resin; a solvent; and a photopolymerization initiator.

Abstract: Provided is a liquid-repellent agent which enables the production of partition walls that are less susceptible to reduction in liquid repellency even when subjected to oxygen plasma treatment or UV-ozone treatment. A liquid-repellent agent (A) of the present invention contains a polymer containing: a polymerization unit (a1) derived from a hydrocarbon having an alkyl group in which at least one hydrogen atom is replaced with a fluorine atom and which may contain an ether-oxygen atom; and one or two or more types of polymerization units (a2) other than the polymerization unit (a1), wherein the number of ethylenically unsaturated double bonds in the polymerization units (a1) and (a2) is 3 or greater.

Abstract: The present disclosure aims to provide a novel surface modifier that can be introduced into a photosensitive resin composition to improve the surface roughness of a fluororesin suitable for use as a partition wall material. The present disclosure relates to a surface modifier containing a fluororesin (A) having a structure represented by the following formula (1): wherein each Ra independently represents a C1-C6 linear, C3-C6 branched, or C3-C6 cyclic alkyl group or a fluorine atom, and any number of hydrogen atoms in the alkyl group are replaced with fluorine atoms.

Abstract: A falling film evaporator includes a heat transfer tube bundle with a heat medium channeled to an interior, a tank with a refrigerant inflow port having the heat transfer tube bundle disposed in the tank, a liquid refrigerant sprinkling part arranged to drop liquid refrigerant onto the heat transfer tube bundle, a vapor outlet tube extending from an upper part of the tank, a cover having a portion positioned in a location inside the tank and higher than the liquid refrigerant sprinkling part, and an impeding member provided between the liquid refrigerant sprinkling part and the cover at a different position than the vapor outlet tube along the longitudinal direction of the heat transfer tubes. The impeding part impedes the flow of refrigerant that flows between the liquid refrigerant sprinkling part and the cover and flows in the longitudinal direction of the heat transfer tubes.

Abstract: A falling film evaporator includes a heat transfer tube group with heat transfer tubes extending longitudinally, a tank having a refrigerant flow inlet, a liquid refrigerant distribution part, a vapor outlet pipe extending out from a lateral or upper position of the tank other than a top of the tank as viewed along a longitudinal direction of the tank, and an isolation member covering a place below a lowest portion of a connection portion of the tank and the vapor outlet pipe as viewed along an axial direction of the heat transfer tubes. Liquid refrigerant supplied through the refrigerant flow inlet falls downwardly onto the heat transfer tube group. The isolation member extends between the vapor outlet pipe and the liquid refrigerant distribution part to allow refrigerant to pass through an upper portion. A longitudinal direction of the isolation member is the same as the heat transfer tubes.

Abstract: A falling film evaporator includes a heat transfer tube bundle with a heat medium channeled to an interior, a tank with a refrigerant inflow port having the-heat transfer tube bundle disposed in the tank, a liquid refrigerant sprinkling part arranged to drop liquid refrigerant onto the heat transfer tube bundle, a vapor outlet tube extending from an upper part of the tank, a cover having a portion positioned in a location inside the tank and higher than the liquid refrigerant sprinkling part, and an impeding member provided between the liquid refrigerant sprinkling part and the cover at a different position than the vapor outlet tube along the longitudinal direction of the heat transfer tubes. The impeding part impedes the flow of refrigerant that flows between the liquid refrigerant sprinkling part and the cover and flows in the longitudinal direction of the heat transfer tubes.

Abstract: An optical transmitter and an optical transmission method includes a plurality of light-emitting elements, a plurality of light-receiving elements for monitoring optical outputs from the light-emitting elements, a linear operation circuit for calculating optical output monitor signals by removing crosstalk parts from a plurality of photoelectric conversion currents outputted from the light-receiving elements, and a drive circuit for driving individually currents to apply to the light-emitting elements based on the optical output monitor signals.

Abstract: An optical transmitting and receiving apparatus 1 has a transmitting circuit unit 20 including a light emitting element 2 and a driving circuit 3 which drives the light emitting element 2, a receiving circuit unit 30 including a light receiving element 5 and amplification circuit 6 which amplifies a signal received from the light receiving element 5, a judging unit 8 which judges an abnormality or failure of either or both of the transmitting circuit unit 20 and the receiving circuit unit 30 based on a measured data value provided from the transmitting circuit unit 20 and/or the receiving circuit unit 30, and a measured value storing unit 9 which stores the measure data value in the case that the judging unit 8 judges the abnormality or failure occurs in the transmitting circuit unit 20 and/or the receiving circuit unit 30.

Abstract: An apparatus 1 with a flash memory according to the present invention comprises a flash memory 11 having at least three memory pages 2a, 2b and 2c. Each of the pages 2a, 2b and 2c has a sufficient storage capacity to store an amount of data twice or more that of true data to be written. When the current page is the page 2a (i.e., existing data Dp is stored in the page 2a) and the next page is the page 2b, new data Df is written to the next page 2b and thereafter the data Dp stored in the current page 2a is erased.

Abstract: An optical transmitting and receiving apparatus 1 has a transmitting circuit unit 20 including a light emitting element 2 and a driving circuit 3 which drives the light emitting element 2, a receiving circuit unit 30 including a light receiving element 5 and amplification circuit 6 which amplifies a signal received from the light receiving element 5, a judging unit 8 which judges an abnormality or failure of either or both of the transmitting circuit unit 20 and the receiving circuit unit 30 based on a measured data value provided from the transmitting circuit unit 20 and/or the receiving circuit unit 30, and a measured value storing unit 9 which stores the measure data value in the case that the judging unit 8 judges the abnormality or failure occurs in the transmitting circuit unit 20 and/or the receiving circuit unit 30.

Abstract: A control method for a laser diode is conducted such that optical output and OMA (optical modulation amplitude) or extinction ratio of the laser diode are controlled while modulating the optical output of the laser diode by applying a bias current and a modulation current to the laser diode. The method has: a first step of measuring the optical output of the laser diode; a second step of measuring a slope efficiency or a corresponding value of the slope efficiency while conducting APC (automatic power control) to adjust the bias current such that the optical output coincides with a predetermined value; and a third step of adjusting the modulation current by AAC (automatic amplitude control) according to the slope efficiency or the corresponding value of the slope efficiency such that the OMA or extinction ratio coincides with a predetermined value.

Abstract: A laser control apparatus and control method thereof includes multiple laser elements, a photodetector for monitoring optical outputs of the laser elements, a modulation. circuit for modulating with respect to each laser element based on data, a first drive source for applying a bias current to each laser element, a second drive source for generating a modulation current in the modulation circuit, and a controller for controlling the first drive source and the second drive source to couple an amount of a variation of a drive current as a test current to the bias current and the modulation current and for controlling the bias current according to an amount of variation of the optical output which occurs by coupling of the test current and an amount of the bias current.

Abstract: An optical transmitter and an optical transmission method includes a plurality of light-emitting elements, a plurality of light-receiving elements for monitoring optical outputs from the light-emitting elements, a linear operation circuit for calculating optical output monitor signals by removing crosstalk parts from a plurality of photoelectric conversion currents outputted from the light-receiving elements, and a drive circuit for driving individually currents to apply to the light-emitting elements based on the optical output monitor signals.

Abstract: A laser control apparatus and control method thereof includes multiple laser elements, a photodetector for monitoring optical outputs of the laser elements, a modulation. circuit for modulating with respect to each laser element based on data, a first drive source for applying a bias current to each laser element, a second drive source for generating a modulation current in the modulation circuit, and a controller for controlling the first drive source and the second drive source to couple an amount of a variation of a drive current as a test current to the bias current and the modulation current and for con-trolling the bias current according to an amount of variation of the optical output which occurs by coupling of the test current and an amount of the bias current.

Abstract: A control method for a laser diode is conducted such that optical output and OMA (optical modulation amplitude) or extinction ratio of the laser diode are controlled while modulating the optical output of the laser diode by applying a bias current and a modulation current to the laser diode. The method has: a first step of measuring the optical output of the laser diode; a second step of measuring a slope efficiency or a corresponding value of the slope efficiency while conducting APC (automatic power control) to adjust the bias current such that the optical output coincides with a predetermined value; and a third step of adjusting the modulation current by AAC (automatic amplitude control) according to the slope efficiency or the corresponding value of the slope efficiency such that the OMA or extinction ratio coincides with a predetermined value.

Abstract: A package with a locking mechanism provided with a package main body to be inserted into and removed from a cage and locked fastenably and releasably with the cage, a locking-dislocking mechanism for locking and dislocking the package main body with the cage, and an operation lever for the locking-dislocking mechanism wherein the locking-dislocking mechanism is attached to the package main body, the operation lever has a plurality of members to be pivoted detachably on the package main body, and any one of the members to be pivoted which is selected arbitrarily therefrom is pivoted on the package main body so as to rotate the operation lever.