Abstract:
PURPOSE: A fluorescent lamp and a manufacturing method thereof are provided to steadily attach a fluorescent material layer to a light emitting tube while having enough binding properties by forming the fluorescent material layer into a fluorescent substance particle and a silica particle. CONSTITUTION: A light emitting tube(2) is composed of quartz glass. A pair of external electrodes is included at the upper side and the lower side of the light emitting tube. A fluorescent material layer(5) is formed in the inner side of the light emitting tube. The fluorescent material layer radiates ultraviolet rays. The fluorescent material layer comprises a fluorescent substance particle and a silica particle(7). The average particle diameter of the silica particle is 10 to 100nm. The ratio of the silica particle included in the fluorescent material layer is 2 to 20wt%.
Abstract:
본 고안은 반도체 제조장치에서 사용되는 오존발생장치의 방전관 구조에 관한 것으로, 특히 방전관을 조립형으로 구성하여 제조와 설치가 용이하고 파손시 부분적인 수리가 가능하는 오존발생장치의 방전관에 관한 것이다. 본 고안의 오존 발생장치의 방전관을 이루는 구성수단은, 소정의 직경을 가지는 원통 형상의 제1 석영관과, 상기 제1 석영관의 직경보다 더 작은 직경을 가지되, 상기 제1 석영관 내부로 삽입되는 원통 형상의 제2 석영관과, 상기 제1 석영관과 제2 석영관을 고정하기 위하여 상기 석영관 일측에 삽입되도록 구비되되, 상기 제1 석영관과 제2 석영관 사이에 형성되는 간극으로 산소를 유입하는 산소유입플랜지와, 상기 제1 석영관과 제2 석영관을 고정하기 위하여 상기 석영관 타측에 삽입되도록 구비되되, 상기 제1 석영관과 제2 석영관 사이에 형성되는 간극에서 발생된 오존을 배출하는 오존배출플랜지를 포함하여 이루어진 것을 특징으로 한다.
Abstract:
Method of manufacturing grid electrodes wherein a grid sleeve is produced by depositing pyrolytic graphite on a polished mandril of glassy carbon and provided with apertures by means of the laser beam, then the finished grid is provided, by means of hot gas pyrolysis, with a second layer of highly oriented pyrolytic graphite, and thermally and/or mechanically after-treated at 3000.degree. to 3800.degree. K and 10-500 bar.
Abstract:
An impervious metal sheet is placed on top of a pair of flat grid blanks which are clamped together at their edges. An elastic sheet contacts the bottom grid blank, and a second impervious metal sheet is inserted between the two grid blanks if the grids have high percentage open areas. All of the blanks and sheets are dished simultaneously by forcing fluid to inflate the elastic sheet. The dished grids are also stress relieved simultaneously.
Abstract:
A vane grid is disclosed wherein a plurality of inwardly directed vanes are bonded at their roots to the sidewalls of an array of longitudinal slots in the inside wall of a grid ring. The grid is conveniently fabricated by machining a plurality of grid rings, stacking the grid rings, and broaching the array of slots in the inside walls of the stacked grid rings. The grid rings are then plated, the vane members assembled, and the assemblies are heated to melt the plating to form, when cooled, a bonded joint between the root portions of the vanes and the grid ring.
Abstract:
The effects of high field emission upon electrodes and screens in high vacuum tubes or switches is reduced by coating copper electrodes with a thin layer of titanium or zirconium. As a result of this, the allowable field strength is increased.