摘要:
Disclosed is a lighting system capable of preventing damage to an outer-tube resulting from an outer-tube discharge that often occurs at the end of useful life of a lamp. The lighting system includes: a metal halide lamp having an arc tube housed within an outer tube; and a lamp .lighting device for operating the metal halide lamp. The lamp lighting device includes: a power supply unit operable to supply an electric power to the metal halide lamp; a detecting unit operable to detect an electrical property of the metal halide lamp; a judging unit operable to judge, based on the detected electrical property, whether a currently occurring discharge is an outer-tube discharge; and an instructing unit operable to instruct the power supply unit to suspend or reduce the electric power supply to the metal halide lamp upon a judgment that the currently occurring discharge is an outer-tube discharge. The detection unit detects a lamp voltage. The judging unit judges that the currently occurring discharge is an outer-tube discharge if the detected lamp voltage differs from a lamp voltage under normal operation.
摘要:
An antireflection film comprising: a transparent plastic film substrate; a hard coat layer; and a low refractive layer, in this order, wherein the low refractive layer is formed by a curable composition comprising: (a) an inorganic fine particle; (b) at least one of a cationic polymerizable compound having a silyl group within the molecule; a hydrolysate of the compound; and a partial condensate of the compound; and (c) a photo-cationic polymerization initiator.
摘要:
A curable composition comprising:(A) a branched polyfluorodialkenyl compound represented by a general formula (1): CH2═CH—(X)a-Rf1-(X′)a—CH═CH2 (1) wherein, X and X′ are bivalent groups such as —CH2— and —CH2O—, a represents, independently, either 0 or 1, and Rf1 is a specific bivalent fluorine-containing group, (B) a branched polyfluoromonoalkenyl compound represented by a general formula (2): Rf2-(X′)a—CH═CH2 (2) wherein, X′ and a are as defined above, and Rf2 is a specific fluorine-containing group, (C) an organohydrogensiloxane compound with at least two hydrogen atoms bonded to silicon atoms, and (D) a platinum group metal catalyst; as well as a low bleeding gel type cured product obtained by curing such a composition, and an electrical or electronic component sealed or encapsulated using such a cured product. The gel type cured product displays very little bleeding of free oil constituents from the gel as a result of stress such as pressure fluctuation or heat history.
摘要:
For controlling a traffic on a network including a plurality of links, the apparatus includes a collecting unit that collects information on the traffic for each of the links periodically; an acquiring unit that acquires basic data collected from a link for a predetermined period; and a predicting unit that predicts a future traffic on the link based on the basic data. The start time of the predetermined period is the time when the latest control of the traffic was performed on the link or other link adjacent to the link.
摘要:
A curable composition contains (A) a fluorinated amide compound having at least one alkenyl radical, (B) a fluorinated organohydrogensiloxane, (C) a platinum group compound, (D) an organosiloxane having at least one hydrogen atom directly attached to a silicon atom, and at least one epoxy and/or trialkoxysilyl radical attached to a silicon atom through a carbon atom or a carbon atom and an oxygen atom, and (E) a carboxylic anhydride. The composition firmly bonds to a variety of substrates such as PPS and nylon while curing into a fluorinated elastomer.
摘要:
At least one partition wall is disposed in a hopper of a feeder for feeding electronic chip components. The at least one partition wall reduces the potential for damage to the components due to the reciprocating movement of a movable pipe disposed on the bottom of the hopper for agitating the electronic chip components. The reduced potential of degradation allows more electronic chip components to be accommodated in the hopper.
摘要:
Novel organosilicon compounds having a perfluoroalkyl or perfluoropolyether group and at least one ethynyl group are useful as an agent for controlling hydrosilylation reaction between a --SiH group-bearing compound and a --CH.dbd.CH.sub.2 group-bearing compound.
摘要:
A cassette storing electronic components, which is employed for supplying a plurality of electronic components to an apparatus for mounting electronic components, comprises a plurality of electronic components and a case having a storage space provided in its interior for storing the electronic components and a discharge port communicating with the storage space for discharging the electronic components. In this cassette storing electronic components, the case is provided with a plurality of plate type baffle walls for partially blocking the storage space. Consequently, movement of the electronic components in the case can be suppressed by the baffle walls even if the cassette is extremely moved in a state attached to a mounting machine. Thus, the electronic components as well as the case can be inhibited from reduction in quality, while the number of reusable times of the case can be increased.
摘要:
A novel organic silicon compound having at least one .tbd.SiH group in a molecule and a fluorinated organic group at either end is a useful crosslinking agent for various resins, especially fluorinated resins. An organopolysiloxane composition comprising (A) an organopolysiloxane having in a molecule at least two alkenyl groups and at least one fluorinated substituent, (B) an organohydrogenpolysiloxane having at least two .tbd.SiH groups in a molecule and a fluorinated organic group at either end, and (C) a platinum catalyst is readily curable to products having solvent and moisture resistance.
摘要:
Novel siloxane compounds are provided which have 1-5 hydrogen atoms each attached to a silicon atom (SiH group) and 1-5 epoxy or alkoxy - containing organic groups each attached to a silicon atom in a molecule. These siloxane compounds are useful tackifiers to conventional resins, have good affinity to fluorinated silicone resins and rubbers so that they impart adhesion to fluorinated silicone resins and rubbers, and contribute to solvent resistance and minimal moisture permeability.