Abstract: There are provided a lens that is molded with high accuracy and a method of molding the lens. The lens has an optical axis and includes a pair of optical functional surfaces on front and rear surfaces thereof. The lens includes an optical functional portion that includes the pair of optical functional surfaces, an edge portion that is provided at an outer periphery of the optical functional portion, and a connecting portion that is provided between the optical functional portion and the edge portion, connects the optical functional portion with the edge portion, and is thinner than the edge portion in a direction of the optical axis.

Abstract: The invention provides a lens forming apparatus that can suppress generation of burrs even if gaps between outer walls of an upper die and a lower die and an inner wall of a trunk die is made wide. A lens forming apparatus 11 according to the present invention includes a trunk die 12 having a through-hole 17 therein; first and second dies 13 and 14 that are fitted into the through-hole 17 from both ends thereof, respectively, and have pressing surfaces 20 and 30 for sandwiching and pressing a forming material 24; and induction-heating coils 15 and 16 that heat the first and second dies 13 and 14 to a temperature equal to or higher than a glass transition point, in a state where the trunk die 12 is not heated and the temperature thereof is set to a temperature equal to or lower than the glass transition point.

Abstract: Disclosed is a method of manufacturing an optical element capable of increasing surface accuracy of an optical surface of an optical element with a plastic lens portion. A cavity which is formed when a pair of molds are closed has a compression molding space and an annular injection molding space, and the method includes a compression molding step of casting a compression molding material into the compression molding space of the molds and an injection molding step of injecting an injection molding material into the injection molding space in a state where the molds are closed and forming an injection molded portion at the outer circumferential edge of the compression molded compression molding material. In the injection molding step, before the compression molding material reaches a temperature lower than the glass transition temperature, the injection of the injection molding material starts.

Abstract: In a composite molded lens, a press-formed lens body is integral with an injection-molded lens frame. The lens body has a lens portion and a flange portion surrounding the lens portion. Eight projections are radially formed on a top surface of the flange portion. The height of the projection increases toward an outer peripheral edge side of the flange portion. A recess is formed on an outer peripheral edge face of the flange portion and located at a position on a line extending from the projection. The recess increases torsional resilience of a joint surface between the lens body and the lens frame and strengthens bonding force there between.

Abstract: There are provided a lens that is molded with high accuracy and a method of molding the lens. The lens has an optical axis and includes a pair of optical functional surfaces on front and rear surfaces thereof. The lens includes an optical functional portion that includes the pair of optical functional surfaces, an edge portion that is provided at an outer periphery of the optical functional portion, and a connecting portion that is provided between the optical functional portion and the edge portion, connects the optical functional portion with the edge portion, and is thinner than the edge portion in a direction of the optical axis.

Abstract: The invention provides a fiber reinforced resin composition comprising a melt-kneaded product (A) prepared by melt-kneading a first resin (A1) and a second resin (A2) that has a reactive functional group as well as a third resin (B) and a fibrous filler (C), wherein, with respect to the contents of the components, the first resin (A1), the second resin with a reactive functional group (A2), and the third resin (B) account for 0.1 to 75 wt %, 0.1 to 15 wt %, and 10 to 99.8 wt %, respectively, to form a resin composition while said fibrous filler (C) accounts for 0.1 to 300 parts by weight per 100 parts by weight of said resin composition, said first resin (A1) and said third resin (B) forming a matrix resin, said second resin (A2) being dispersed as particles in said matrix resin, and said particles having a number average particle diameter of 10 to 1,000 nm.

Abstract: Provided is a tire defect detection method capable of accurately detecting a thinly extending convex defect of a tire surface. Prior to the start of Step S1, two-dimensional images including a slit light image are successively obtained in advance. In Step S1, a slit light image is extracted from data of a plurality of shot two-dimensional images. In Step S2, an eccentricity component which is deviation resulting from eccentricity is eliminated from the extracted slit light image. In Step S3, a feature quantity is calculated based on the light image from which the eccentricity component is eliminated, and in Step S4, a thinly extending convex defect is detected based on the calculated feature quantity.

Abstract: The present invention provides a prepreg comprising the following constituent elements (A), (B) and (C), the constituent element (A) being arranged on one surface or both surfaces of a layer containing the constituent elements (B) and (C), and not less than 90 area % of the constituent element (A) existing in the region from the surface of the prepreg to a position up to 20% of the average thickness of said prepreg: (A) epoxy particles having a tan ? at 10° C. of not less than 0.15 and having a three-dimensional cross-linked structure; (B) a first epoxy resin composition; and (C) reinforcing fibers. The present invention provides a prepreg suitable for formation of a fiber reinforced composite material having an excellent stiffness, strength, and damping performance.

Abstract: An epoxy resin composition containing an epoxy resin [A1], epoxy resin [B1], epoxy resin [C1] and curing agent [D] wherein [A1] is a bisphenol-type epoxy resin with a softening point of 90° C. or more, [B1] is a tri- or higher functional amine-type epoxy resin, [C1] is a bisphenol F-type epoxy resin with a number average molecular weight of 450 or less, and the epoxy resins [A1] to [C1] satisfy the following contents per 100 parts by mass of total epoxy resin content: [A1] 20 to 50 parts by mass, [B1] 30 to 50 parts by mass and [C1] 10 to 40 parts. The present invention provides low-viscosity epoxy resin compositions that are excellent in impregnating reinforcing fibers and capable of producing cured resins with excellent modulus and toughness, as well as prepregs and fiber-reinforced composite materials based on those epoxy resin compositions.

Abstract: There is provided a prepreg which contains components (A) to (C) as mentioned below, wherein the component (A) is arranged on one surface or both surfaces of a layer comprising the components (B) and (C): (A) a nonwoven fabric comprising a thermoplastic elastomer and/or a polyolefin each of which has a value of tan ? of 0.06 or more at 10° C. as measured in a viscoelasticity measurement and is incompatible with the component (B); (B) a first epoxy resin composition; and (C) a reinforcing fiber. There are also provided a fiber-reinforced composite material which has excellent rigidity, strength, and vibration-damping performance, a prepreg which can be used suitably for the production of the fiber-reinforced composite material, and a process for producing the prepreg.

Abstract: A micro fluid device includes a heating unit and a cooling unit, each with piping disposed within. The heating and cooling units are integrally coupled together, and fluid flows into the piping of respective units. A temperature control device includes a heat insulator which has a through hole equal in diameter to the piping disposed within the heating unit and cooling unit. The heat insulator is interposed between heating unit and the cooling unit. A positioning mechanism positions the heat insulator to bring the piping into communication with the through hole at the time of coupling the heating and cooling units.

Abstract: A weather information database stores weather information acquired from a weather information provider. A power generation unit selection unit selects a power generation unit with a high generating efficiency from a plurality of power generation units having different power generation schemes, in accordance with the current weather condition. A power generation electric energy database stores the power generation electric energy of a power generation unit, while an electric energy consumption database stores the electric energy consumption of a plurality of electrical appliances. A power transmission destination selection unit selects an electrical appliance whose electric energy consumption is lower than the generated energy from the plurality of electrical appliances, when the past generated energy in the current time zone is lower than the past total electric power consumption, and transmits electric power thereto.

Abstract: A prepreg containing components (A) to (C) defined below, wherein component (A) is placed on one surface or both surfaces of a layer comprising components (B) and (C), 90% or more by area of component (A) being present in a region(s) extending from the surface(s) of the resulting prepreg containing components (A) to (C) to a depth equal to 20% of the average thickness of the prepreg: (A) urethane particles having tan ? of 0.15 or more at 10° C. and having a three-dimensional cross-linked structure, (B) a first epoxy resin composition, and (C) reinforcing fiber. The present invention provides a fiber-reinforced composite material which excels in rigidity, strength, and vibration damping properties, and a prepreg which is suitably used for production thereof, and also provides methods for production thereof.

Abstract: It is an object of the present invention to improve drawbacks in conventional technology and provide a fiber-reinforced composite material having both an excellent static strength property and impact resistance, and an epoxy resin composition for obtaining the fiber-reinforced composite material. More particularly, it is the object of the present invention to provide the epoxy resin composition that gives a cured material having a high elastic modulus, a high heat resistance, a high plastic deformation capacity and a high toughness. The epoxy resin composition containing following [A] to [D], a prepreg obtained by impregnating a fiber substrate with the epoxy resin composition, a fiber-reinforced composite material obtained by curing the prepreg and a tubular body thereof.

Abstract: Provided is an element array in which an error in pitch among elements in the element array is absorbed surely in a step of laminating a plurality of element arrays so that each group of the elements arrayed in the laminating direction can be aligned with high accuracy. The element array has a plurality of elements arrayed one-dimensionally or two-dimensionally, and a flexible support formed out of a material richer in elasticity than a material forming the elements. The elements are coupled with one another through the support.

Abstract: The invention provides a fiber reinforced resin composition comprising a melt-kneaded product (A) prepared by melt-kneading a first resin (A1) and a second resin (A2) that has reactive functional group as well as a third resin (B) and a fibrous filler (C), wherein, with respect to the contents of the components, the first resin (A1), the second resin with a reactive functional group (A2), and the third resin (B) account for 0.1 to 75 wt %, 0.1 to 15 wt %, and 10 to 99.8 wt %, respectively, to form a resin composition while said fibrous filler (C) accounts for 0.1 to 300 parts by weight per 100 parts by weight of said resin composition, said first resin (A1) and said third resin (B) forming a matrix resin, said second resin (A2) being dispersed as particles in said matrix resin, and said particles having a number average particle diameter of 10 to 1,000 nm.

Abstract: A lens is formed from a heat resistant resin and includes a diaphragm integrally provided on a surface of the lens. The diaphragm is a coating layer formed as a result of a heat resistant, light blocking resin being applied over the surface.

Abstract: According to a blood plasma collection tool of the present invention, a phenomenon that blood cells in blood spontaneously precipitate due to an effect of gravitational force takes place in the very narrow microspace (separation part) having the very narrow depth in the direction of gravitational force of not greater than 1 mm, and the overflow channel functions as a dam against the separation part so that the blood plasma separated out as supernatant fluid can overflow beyond the overflow channel, whereby the blood cells separated out can be prevented from entering the collection part. Therefore, blood plasma can be collected by accurately and readily separating blood plasma and blood cells in a small amount of blood from each other in a short time, using a small tool having a simple structure.

Abstract: Disclosed is an organic electroluminescent device comprising a first electrode, a second electrode, at least one organic layer containing a luminescent layer and disposed between the first electrode and the second electrode, a transparent substrate and a prism structure disposed between the first electrode or the second electrode and the transparent substrate, wherein the prism structure is disposed such that the apexes of the prisms face the transparent substrate side and the coefficient of variation in the pitch of the apexes of the prisms is 1% or more.