摘要:
A ceramic envelope device for an HID lamp, wherein a translucent ceramic arc tube is closed at opposite end sections thereof by respective end caps which support respective discharge electrodes on their inner surfaces. At least one of the opposite end sections of the arc tube is sealed with a sealing layer, and each of the sealed end section of the tube includes a first axial portion having a first inside diameter, and a second axial portion having a second inside diameter smaller than the first inside diameter and disposed axially inwardly of the first axial portion. The first and second axial portions define an annular shoulder surface radially inwardly extending between the first and second inside diameters. The first axial portion preferably has a cylindrical wall thickness of 1.0-1.5 mm, and the annular shoulder surface preferably has a radial width of 0.2-0.8 mm. The sealing layer is interposed between the first axial portion of the arc tube and the corresponding end cap. The inner surface of the corresponding end cap includes a peripheral portion held in abutting contact with the annular shoulder surface. The first and second inside diameters are preferably formed by a stepped-diameter drill.
摘要:
A ceramic envelope device for a high-pressure metal-vapor discharge lamp, including a translucent ceramic tube, a pair of electrically conducting end caps closing opposite open ends of the ceramic tube, a pair of oppositely located discharge electrodes each of which is supported at one end thereof by an inner hole in the corresponding end cap, and a pair of power-supply lead members each of which is supported at one end thereof by an outer hole in the corresponding end cap. A space or radial gap is formed between at least a portion of an outer surface of the electrodes and lead members and their respective supporting holes. At least one of the electrodes and the lead members is formed from a twisted wire consisting of a plurality of metallic strands. The electric resistance of each end cap may fall within a range of 0.1-5 .OMEGA.. The end caps may be covered at their inner surface with an electrically insulating member which has a tubular protruding portion surrounding a part of the corresponding electrode which protrudes from a radially central portion of the inner surface of the corresponding end cap.
摘要:
A ceramic envelope device for a high-pressure metal-vapor discharge lamp, including a translucent ceramic arc tube, a pair of electrically conducting cermet end caps closing opposite open ends of the ceramic arc tube, and having opposite inner surfaces facing each other, the end caps having a pair of inner holes formed in the opposite inner surfaces of the end caps, respectively, and a pair of discharge electrodes each provided in the form of a rod, having first ends supported in the inner holes in the end caps, respectively, and second ends which protrude from the opposite inner surfaces toward each other in a longitudinally inward direction in the ceramic arc tube. To fix each electrode in the corresponding hole by shrinkage fit with reduced thermal stresses during sintering of the end caps, at least one strand is inserted in each of the inner holes in the end caps, such that there exists an axial space between outer surfaces of the discharge electrode and the at least one strand, and an inner surface of the corresponding inner hole. Each strand has a diameter and a length smaller than those of the rod of the electrode.
摘要:
A ceramic envelope device for use in a HID (high intensity discharge) lamp, which includes: (a) a translucent ceramic tube; (b) a pair of electrically conductive end caps which close longitudinally opposite ends of the ceramic tube; (c) a pair of oppositely located discharge electrodes each of which is supported at a first end thereof by a corresponding one of the end caps such that a second end of each electrode protrudes from an inner surface of the corresponding end cap in a longitudinally inward direction in the ceramic tube; (d) an electrical insulator provided for one or both of the pair of end caps; and (e) a sealing member disposed to maintain fluid-tightness between an engaging portion of the end cap for which the electrical insulator is provided, and the corresponding end of the ceramic tube. The electrical insulator includes a peripheral portion which covers a peripheral portion of the inner surface of the corresponding end cap, and the end of the ceramic tube sealed by the sealing member includes a contact portion which contacts the peripheral portion of the electrical insulator, to thereby isolate the sealing member from an inner space in which the second end of each discharge electrode extends.
摘要:
A multicolor liquid crystal display panel including a first and a second transparent substrate sheet of glass, a color filter layer which forms a multiplicity of picture elements and which is interposed between the first and second sheets of glass, an electrode layer having picture-element electrodes corresponding to the picture elements, and a liquid crystal layer whose transmittance of light is locally varied by application of an electric field thereto through the picture-element electrodes. At least one of the first and second sheets of glass is formed of transparent glass ceramics or crystallized glass having a major crystalline phase which consists of crystals of a Li.sub.2 O-Al.sub.2 O.sub.3 -SiO.sub.2 system.
摘要翻译:一种多色液晶显示面板,包括第一和第二透明基板玻璃,形成多个像素的滤色器层,并且介于第一和第二玻璃板之间的电极层,具有图像元素电极 对应于图像元素,以及通过施加电场而使透光率通过图像元素电极局部变化的液晶层。 第一和第二玻璃板中的至少一个由透明玻璃陶瓷或具有由Li 2 O-Al 2 O 3 -SiO 2体系的晶体构成的主晶相的结晶玻璃形成。
摘要:
An optical fiber-connecting reinforcing member including a resin sheet having excellent heat resistance and peelability, and at least one laminate arranged on a surface of the resin sheet. The laminate consists of a reinforcing base plate made of a ceramic and a hot melt film. The hot melt film is bonded to the resin sheet. A process for producing optical fiber-connecting reinforcing member is also disclosed. A resin sheet having excellent heat resistance and peelability is first placed on a lower holding plate with a guide, and setting a perforated plate onto the upper surface of the resin sheet. The perforated plate has longitudinal through holes bored therethrough at a specific interval. Hot melt films and reinforcing base plates are each preliminarily cut to a given size, and inserted into the longitudinal holes. An upper holding plate is placed on the perforated plate, and then hot pressing is effected.
摘要:
A reinforcement for reinforcing a joint at which two lengths of an optical-fiber cable consisting of at least one optical fiber are spliced by fusion welding, such that a spliced stripped part of each optical fiber and adjacent coated parts of the cable are secured to the reinforcement by an adhesive material. The reinforcement is formed of a transparent crystallized glass which has a major crystalline component consisting of Li.sub.2 O, Al.sub.2 O.sub.3 and SiO.sub.2 and which has a low coefficient of thermal expansion. The reinforcement has a contact surface which is roughened by machining and at which the reinforcement contacts the optical-fiber cable. A strengthened layer is formed by ion exchange, on an entire surface of the reinforcement, and an adhesive layer is formed on the rough contact surface, to secure the optical-fiber cable to the contact surface, upon heating of the adhesive layer, such that the adhesive material serves to smooth the rough contact surface, and thereby renders the rough contact surface transparent.