Abstract:
Disclosed is a phosphor suitable for use in a cathode-ray tube, a fluorescent lamp, a radiation intensifying screen, which comprises transparent spherical particles having an average particle size of 0.5 to 20 .mu.m and a ratio of the major diameter to the minor meter of individual particles in the range of 1.0 to 1.5, and ultrafine particles having a diameter of 0.2 .mu.m less in an amount of 5 wt % or less.
Abstract:
A cold-cathode discharge display device which includes a fluorescent tube and electrodes containing R.sub.2 O.sub.3-z, where R is an atom or an atom group of rare earth elements, O is oxygen, and z is 0.0 to 1.0, to perform field emission of electrons and emission of secondary electrons. The electrodes are generated with an electron emitting film containing rare earth elements.
Abstract translation:一种冷阴极放电显示装置,包括荧光管和含有R 2 O 3 -z的电极,其中R是稀土元素的原子或原子团,O为氧,z为0.0至1.0,以进行电子的场发射 和二次电子的发射。 电极由含有稀土元素的电子发射膜产生。
Abstract:
A device for manufacturing a spiral fluorescent tube is disclosed. The device includes a rod aerially supported in a first predetermined direction; a first clamp supporting a straight fluorescent tube in a second direction which is at right angles to the first predetermined direction; heating device for heating a part of the straight fluorescent tube, which is not facing the rod, to a glass softening temperature; two second clamps disposed in a direction parallel to the rod for clamping ends of the straight fluorescent tube; and device for winding the straight fluorescent tube around the rod by rotating the two second clamps in opposite directions to each other around an axis of the rod while shifting the two second clamps away from each other in a direction parallel to the first predetermined direction.
Abstract:
The invention relates to a compact fluorescent light bulb in the form of a reflector lamp. The discharge vessel (3) of the light bulb according to the invention preferably comprises a plurality of U-shaped glass tubes (30, 31), which are located in the same plane at right angles to the reflector axis. As a result, on the one hand a short structural length is attained, which is only insignificantly greater than that of a commercially available general-purpose incandescent bulb, and on the other, the reflector lamp of the invention, when used in ceilings or chandeliers, has a horizontal lighting intensity that is increased by the factor of 4 over a conventional compact fluorescent light bulb.
Abstract:
A fluorescent lamp comprises a glass tube, an electrode at each end of the tube, each of the electrodes including a pair of lead wires extending through each sealed end of the tube and joined to a coil, and a capsule containing metal hydride disposed in the tube and having a decomposition temperature higher than temperatures within the tube during normal operation of the lamp.
Abstract:
An illumination system for weathering and fading resistance test instruments is provided with a pulse-driven xenon gas discharge lamp with an elongated discharge bulb that has an electrode spacing in the range from 10 to 50 cm; by adjusting the duty factor of the lamp current by means of an electronic control unit, a predetermined ratio between ultraviolet and infrared radiation is achieved; for the sake of light density, the lamp bulb is bent in a U.
Abstract:
A three way lamp having two gas discharge light tubes mounted on the same housing having three terminals arranged thereon as provided on a three-way incandescent lamp.
Abstract:
A flat fluorescent lamp having transparent electrodes, transparent glass plates spaced vertically apart and confronting each other, transparent conductive films forming electrodes provided on the outer surface or the inner surface of the glass plates, fluorescent paint layers provided fixedly on the inner side of the glass plates, or on the glass plates via the transparent conductive films by coating the fluorescent paint on the inner surfaces of the glass plates or conductive films, glass frames spaced horizontally close to both ends of the transparent glass plates or the transparent conductive films and fixedly mounted on the glass plates or transparent conductive films, a space surounded by the glass plates or the transparent conductive films and the glass frames for sealing gas, generally an inert gas therein, and lead-in wires clamping one end of the glass plates and the transparent conductive films.
Abstract:
In an arc discharge device, a thin film bridges the gap(s) between adjacent electrodes, thereby enabling the arc discharge to be initiated and sustained by a low voltage D.C. supply. Application of the invention to both light source (e.g., laser) and material working (e.g., metal deposition) embodiments is described. One of the light source embodiments utilizes a cathode electrode which includes a pool of liquid Hg to generate a Hg ion plasma.