摘要:
A light emitting element is mounted on the surface of a board. The light emitting element emits light. The light passes through a translucent optical member. The light enters the translucent optical member through a incident surface. The lines of protrusions make the incident surface jagged. The jagged surface resulting from the protrusions enables diffusion of the light entering through the incident surface. The light spreads along the surface of the board. Simultaneously, the emitted light is partly reflected on the incident surface. The reflected light is reflected on a reflecting surface placed behind the light emitting element. The reflected light then enters the translucent optical member. The translucent optical member is thus allowed to illuminate over a wide range with a sufficient brightness. An impressive illumination can be realized.
摘要:
The present invention provides a perfluoroelastomer seal material in which adhesive strength, contamination, corrosion and color change of a contacted surface with a seal material are improved, and an amount of an uncrosslinked polymer component is at most 1% by weight, measured under specific conditions, and a process for preparing the same. The present invention relates to a perfluoroelastomer seal material, wherein a rate of weight decrease is at most 1% by weight when the seal material is immersed into perfluoro(tri-n-butyl) amine at 60° C. for 70 hours and is dried at 90° C. for 5 hours, 125° C. for 5 hours and 200° C. for 10 hours after taken out of the emersion. And, the present invention also relates to a process for preparing a perfluoroelastomer seal material comprising a step of treating with a solvent having at least 50% of a swelling rate based on said molded article, when said molded article is immersed at 60° C. for 70 hours.
摘要:
A liquid crystal composition having a nematic phase that includes two components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1) to (1-3), and the second component is at least one compound selected from the group of compounds represented by formula (2): wherein R1 is alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R2 and R3 are each independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine; ring A, ring B and ring C are each independently 1,4-cyclohexylene, 1,4-phenylene or 2-fluoro-1,4-phenylene, 2,5-difluoro-1,4-phenylene; Z1 and Z2 are each independently a single bond, ethylene, carbonyloxy or difluoromethyleneoxy, provided that at least one of Z1 and Z2 is difluoromethyleneoxy; Z3 and Z4 are each independently a single bond, ethylene or carbonyloxy; X1, X2, X3, X4, X5, X6, X7 and X8 are each independently hydrogen or fluorine; Y1 is fluorine, chlorine or trifluoromethoxy; and m is 0, 1 or 2.
摘要:
A method for manufacturing a magnetic recording medium with high reliability is provided, which can form a thin magnetic layer having a dry film thickness of, for example, 60 nm or less while the occurrence of defects on the surface is suppressed. In this method, a magnetic paint having a solid concentration NV (mass %) of 3≦NV≦8 is applied to a non-magnetic underlayer formed over a non-magnetic support to a wet film thickness Tw in a range of ≦2300 (nm).
摘要:
There are provided a printed circuit board design instruction support method between a circuit design and a printed circuit board design, a printed circuit board design instruction support device between a circuit design and a printed circuit board design, a Web system, a program, an a computer-readable recording medium which improve the work efficiency of the printed circuit board designing and the quality of the printed circuit board design. By selecting a circuit part to which the design rule is applied, a circuit program and a portion-to-be-checked on the printed circuit board are simultaneously displayed by cooperation between the circuit design system and the printed circuit board design system, thereby reducing the time and labor required for check.
摘要:
It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiO2 as a main component, a layer containing Al2O3 as a main component, and a plate crystal layer formed from plate crystals containing Al2O3 as a main component, wherein the surface of the plate crystal layer has a shape of irregularities, and an optical system using the same.
摘要:
Provided is a method of producing an optical film which has an excellent strength and a low refractive index, and can be used for an optical antireflective film. The production method includes preparing a coating liquid including a capsule having a shell of a halogenated compound of an element of Group 2 by forming an emulsion of one of an aqueous solution including a compound containing an element of Group 2 and an aqueous solution including a compound containing a halogen, and an organic solvent, applying the coating liquid on a substrate, and heating the coating liquid, thereby forming an optical film containing a hollow particle having the shell of a halogenated compound of an element of Group 2.
摘要:
A submersible aerator has an impeller which includes blades having partition walls which separate liquid passages and air passages and which is accommodated within a guide casing for rotation between a lower surface of an intermediate plate having an air suction opening and an upper surface of a suction cover having a liquid suction opening. The liquid passages and the air passages meet through communication portions at radially outer ends of rear-side blade partition walls. Intermediate blades are provided at radially outer ends of the liquid passages. A conical space is defined between the blade lower end surfaces and the suction cover upper surface such that the space, which is wide at a portion adjacent to the liquid suction opening, becomes narrower toward a radially outward region including guide vane tongues. A plurality of support legs and a plurality of straining projections are integrally formed on the lower surface of a peripheral portion of a bottom wall of the guide casing. Sloping surfaces are provided on the top wall upper surface between air-liquid discharge passages such that the sloping surfaces are inclined downward and increase in width in the radially outward direction.
摘要:
A biometrics authentication system that performs individual authentication in use of biometrics information facilitates authentication operation and reduces authentication errors. A storage unit stores therein the shape of the body part of the user, of which is captured at the time of registration of biometrics data, and a display unit displays the body part shape from the time of registration when authenticating the user for directly identifying the state of image capture of the body part at the time of registration and for guiding into a state of image capture of the body part similar to the state at the time of registration. The body part can be guided effectively such that the circumstances of body part image capture at the time of authentication and at the time of registration are in agreement, for improved verification efficiency.
摘要:
The invention provides a five-ring liquid crystal compound having a CF2O bonding group as a new compound having a general physical properties necessary for compounds, stability to heat, light and so forth, a wide temperature range of liquid crystal phases, a high clearing point, a good compatibility with other compounds, a large dielectric anisotropy and refractive index anisotropy, and an especially high clearing point and an especially large refractive index anisotropy, and provides a liquid crystal composition and a liquid crystal display device.