摘要:
A blur correction camera system includes a blur correction lens driven based upon the vibration detection signal detected by an angular velocity sensor, that corrects an image blur, a point-image function computing unit that computes a point spread function, and an image restoration computing unit that corrects an image blur by executing image restoration through image processing on a captured image by using the point spread function. The image blur that cannot be completely corrected by the blur correction lens is further corrected through image restoration so as to obtain a high quality image.
摘要:
(Meth)acrylic polymers having alkenyl or curable silyl groups at the chain ends in high functionality ratios are prepared by a process which comprises (i) preparing a (meth)acrylic polymer having halogen atoms at the chain ends, using an organohalogenated compound or a halosulfonyl compound as an initiator and a metal complex catalyst wherein the central metal atom is selected from the group consisting of the elements of Groups 8, 9, 10 and 11 of the periodic table; and (ii) transforming the halogen atom into an alkenyl group- or a curable silyl group-containing substituent. The obtained (meth)acrylic polymers form homogeneous curing materials.
摘要:
A tread rubber is made of a rubber composition containing 100 pbw of a diene rubber, 30 to 100 pbw of a reinforcing filler including at least 10 pbw of silica, and 1 to 20 pbw of microcapsules each encapsulating a heat-expandable substance. A sulfur-containing silane coupling agent is mixed in the rubber composition in an amount of 3 to 15 wt. % based on the weight of the silica. A shell material of each microcapsule is made of a thermoplastic resin which essentially contains a nitrile monomer. A vapor pressure of the heat-expandable substance is 1.4 to 3.0 MPa at 150° C. An average diameter of the microcapsules is 20 to 30 μm before vulcanization of the rubber composition. An average diameter of the microcapsules expanded due to the vulcanization is 40 to 80 μm. The tread rubber has a proportion of a cell-occupying area of 5 to 30%.
摘要:
Heat-expandable microspheres include a shell of thermoplastic resin and a blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin, have a maximum expanding ratio not lower than 50 times, and are thermally expanded into hollow particulates having a repeated-compression durability not lower than 75 percent. The method of producing the heat-expandable microspheres includes the steps of dispersing an oily mixture containing a polymerizable component and the blowing agent in an aqueous dispersing medium containing a specific water-soluble compound and polymerizing the polymerizable component contained in the oily mixture.
摘要:
A blur correction camera system includes a blur correction lens driven based upon the vibration detection signal detected by an angular velocity sensor, that corrects an image blur, a point-image function computing unit that computes a point spread function, and an image restoration computing unit that corrects an image blur by executing image restoration through image processing on a captured image by using the point spread function. The image blur that cannot be completely corrected by the blur correction lens is further corrected through image restoration so as to obtain a high quality image.
摘要:
A method that heat-expandable microspheres includes the use of a shell of thermoplastic resin and a non-fluorine blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin. The method includes a step of dispersing an oily mixture containing a polymerizable component, the blowing agent, and a polymerization initiator containing a peroxydicarbonate in an aqueous dispersing medium to polymerize the polymerizable component contained in the oily mixture. The resultant heat-expandable microspheres have a shell which is less apt to become thinner than its theoretical value, contain minimum amount of resin particle inside their shell, and have excellent heat-expanding performance.
摘要:
A rubber composition for a tire containing (i) 100 parts by weight of a diene-based rubber and (ii) 0.5 to 25 parts by weight of a heat-expandable microcapsule including a shell, and a substance capable of vaporizing or expanding under heating to thereby generate a gas and a nonpolar oil, both encapsulated in the shell,wherein the shell is made of a thermoplastic resin obtained by polymerization of a nitrile-based monomer (I), a monomer (II) having an unsaturated double bond and a carboxyl group in the molecule thereof, an optional monomer (III) having two or more polymerizable double bonds, and an optional copolymerizable monomer (IV) for adjusting the expansion properties.
摘要:
A positioning device comprising a moving portion provided with a pair of magnets arranged respectively along with a first axis and a second axis, a fixed portion provided to face to the moving portion, and a voice coil motor (VCM) for relatively driving the moving portion and the fixed portion by an electromagnetic action between a coil and a drive magnet provided to each of the moving portion and the fixed portion: wherein one of the magnets is arranged so as to reduce a rotation moment generated by an electromagnetic connection between the other magnet and the voice coil motor.
摘要:
The present invention provides a thermoplastic microcapsule which is softened by heat, has a good thermoexpandability, and can provide a MICROBALLOON which shows a high heat resistance after thermoexpanded; such a thermoexpandable microcapsule is composed of a shell and an expanding agent therein, in which said shell is made from a copolymer essentially consisting of a polymerizable monomer having two or more polymerizable double bonds and a monomer which can produce a homopolymer having a high glass transition temperature, and said expanding agent is vaporizable at a temperature lower than the softening temperature of the copolymer.
摘要:
A method that heat-expandable microspheres includes the use of a shell of thermoplastic resin and a non-fluorine blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin. The method includes, a step of dispersing an oily mixture containing a polymerizable component, the blowing agent, and a polymerization initiator containing a peroxydicarbonate in an aqueous dispersing medium to polymerize the polymerizable component contained in the oily mixture. The resultant heat-expandable microsphres have a shell which is less apt to become thinner than its theoretical value, contain minimum amount of resin particle inside their shell, and have excellent heat-expanding performance.