Abstract:
PROBLEM TO BE SOLVED: To provide particles for image display that can stably hold surface electric charges and make an image display state stable, power fluid for image display, and an image display device. SOLUTION: Particle groups having electric characteristics of a semiconductor, preferably, particle groups having electric characteristics of a hole transporting semiconductor or electron transporting semiconductor are used as the particles for image display used for the image display device which has the particle groups 3W and 3B charged between opposed substrates 1 and 2 at least one of which is transparent and displays an image by applying an electric field to the particle groups to move particles. Further, the powder fluid is formed by using the particle groups. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a dry picture display device which has fast response speed and a simple structure, inexpensive, excellent in stability, and further drastically suppresses of agglomerating and as a result lowers the driving voltage. SOLUTION: The picture display device is equipped with a picture display plate which encloses two kinds of particles 5, 6 in mutually different colors and electrostatic characteristics between a transparent substrate 1 and a counter substrate 2 and which displays a picture by imparting electric fields to the particles from two kinds of electrodes 3, 4 with mutually different electric potentials so as to move the particles. A part of a surface of each of the particles to be used is constituted of a substance having electrostatic characteristics different from the rest of the surface. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a ring-like illuminator which stably emits ring-like light at even brightness. SOLUTION: One circumferential side 9 is provided with a light reflecting surface 2 which reflects the incident light from a point-like light source 8, while the other circumferential side 11 is provided with a light emitting surface 3 which emits a ring-like light. At least one point of the one circumferential side 9 where no light reflecting surface 2 is provided comprises a light incident part 4 which takes in the light from the point-like light source 8. A light deflecting means 5 reflects at least a part of advancing light which is taken in from the light incident part 4 in at least one direction among two directions falling on an extension direction 10 of the light emitting surface 3. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide an untinged optical transmission tube having good transparency and suitable for use in a field of decoration such as in a display. SOLUTION: In the optical transmission tube consisting of a transparent hollow tubular cladding material and a transparent core material having a higher refractive index than the cladding material, a polymer of a monomer using a peroxide having no aromatic ring in its molecule as a polymerization initiator is used as the core material. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a high-performance linear light emitter capable of radiating light from the side circumferential surface, without losses and optimizing the angular distribution of circumferential direction outgoing light. SOLUTION: This linear light emitter comprises a light incident part at least at one end and a translucent bar-like body, having a light reflection groove for reflecting the incident light from the light incident part on the circumferential side surface laid along the axial direction. In this light emitter, angle θformed by the axis orthogonal to the axial direction of the linear light emitter and the light incident face in the light reflection groove satisfies 30
Abstract:
PROBLEM TO BE SOLVED: To prevent a core material and a sealing plug from peeling off by securely adhering and fixing the core material and sealing plug and to keep an optical transmitting function high over a long period in an optical transmission tube constituted by filling the uncured core material in a tubular clad, sealing both end opening parts of the clad with sealing plugs and then, curing the core material. SOLUTION: This optical transmission tube 10 formed by charging an uncured core material 1 in a tubular clad 1 and after inserting sealing plugs 5 into both end opening parts of the clad 1, curing the core material 1 is provided with an engagement part comprising a recessed or a projection part for stopping the sealing plug 5 and the cured core material 1 from leaving each other on the end surface 5A of the sealing plug 5 on the side of the core material 11.
Abstract:
PROBLEM TO BE SOLVED: To provide an inexpensive light transmission tube which emits light having high luminance while having directivity from its lateral peripheral surface, maintains an excellent light transmission characteristic in spite of adhesion of stains, etc., and has excellent mass productivity and which is capable of releasing high-luminance light toward all bearings. SOLUTION: This light transmission tube 1 has a tubular clad 3 and a core 2 composed of a material having the refractive index higher than the refractive index of this clad material, is formed with belt-like reflection layers 4 extending in the longitudinal direction thereof between the tubular clad 3 and the core 2 to a spiral shape and is constituted to reflect and scatter the light passing the core 2 by these reflection layers 4 and to release the light spirally from the outer peripheral surface of the tubular clad 3 on the side opposite to the side formed with the reflection layers. The light transmission tube is produced by using a multicolor extruder, introducing the core material, the clad material and the reflection materials contg. while pigments or scattering materials into the respective mouthpiece parts of the extruder and respectively simultaneously extruding the core material to a columnar shape, the reflection materials to belt forms on the outer peripheral surface of the columnar core material and the clad material to a tubular form covering the core material and the reflection materials, then taking off the extrude while twisting the extrudate.
Abstract:
PROBLEM TO BE SOLVED: (J) To improve the sealing workability and adhesion to electronic devices by providing a heat- and/or light-curable adhesive layer composed primarily of a copolymer of ethylene, vinyl acetate and maleic acid (anhydride) on one or both sides of a substrate film having a specific light transmittance and refractive index. SOLUTION: To 100 pts.wt. of a copolymer comprising ethylene, 10-50 wt.% of vinyl acetate and 0.01-10 wt.% of maleic acid (anhydride), are blended 0.1-10 pts.wt. of an organic peroxide having a decomposition temperature of 50 deg.C or above at a half-life of 10 hours, 0.1-10 pts.wt. of a photosensitizer, 0.01-5 pts.wt. of a silane coupling agent, 0.1-50 pts.wt. of a (meth)acryloxy-containing compound and/or allyl-containing compound, and 1-200 pts.wt. of a hydrocarbon resin, so that a heat- and/or light-curable adhesive is obtained. The adhesive is applied on one or both sides of a substrate film having a light transmittance of 50% or more and a refractive index of 1.8 or less and cured to form an adhesive layer.
Abstract:
PROBLEM TO BE SOLVED: (J) To improve the sealing workability and adhesion to electronic devices by providing a heat- and/or light-curable adhesive layer composed primarily of an ethylene-vinyl acetate copolymer on one or both sides of a substrate film having a specific light transmittance and refractive index. SOLUTION: To 100 pts.wt. of an ethylene-vinyl acetate copolymer containing 10-50 wt.% of vinyl acetate, are blended 0.1-10 pts.wt. of a photosensitizer, 0.1-10 pts.wt. of an organic peroxide having a decomposition temperature of 50 deg.C or above at a half-life of 10 hours, 0.01-5 pts.wt. of a silane coupling agent, 0.1-50 pts.wt. of a (meth)acryloyl-containing compound and/or allyl-containing compound, and 1-200 pts.wt. of a hydrocarbon resin, so that a heat- and/or light-curable adhesive is obtained. The adhesive is applied on one or both sides of a substrate film having a light transmittance of 50% or more, a refractive index of 1.8 or less, a Young's modulus of 1 kg/cm or more and a thickness of 1-1,000 μm and cured to form an adhesive layer, on the surface of which unevenness with an average roughness of 50 μm are formed.
Abstract:
PROBLEM TO BE SOLVED: To freely extend the illumination length by producing an optical transmission cable from a bendable outer coating skin and a core material, which is a soft and transparent resin core and with which the inside of the coating skin is filled, enabling the optical transmission cable to emit light rays from the side face, and installing a freely rotatable joint mechanism between a light source and the base end part of the optical transmission cable. SOLUTION: A rotation holder 31 is attached to the outside of the base end part 3A of an optical transmission cable 3 and the winding holder 31 is held in a freely rotatable manner through a bearing 42A on the rotation center axis of the winding drum 2. The winding holder 31 is set on the opposite to the tip end face of an optical guide part 15 fixed in a joint 16 at an extremely narrow distance to compose a joint mechanism. Moreover, an illumination part 32 is installed in the tip end part 3A of the optical transmission cable 3. Moreover, the optical transmission cable 3 is so composed as to emit light out of not only the tip end part but also the outer circumferential face of the side in the whole length.