Abstract:
The arc tube of a high intensity arc discharge lamp is horizontally operated and has a longitudinal stripe of heat reflecting coating along the lower surface of the arc tube in order to improve lamp efficiency.
Abstract:
The invention relates to a lamp having a light source (10) and a sub-assembly comprising a protective sleeve (1) and two frame members, wherein the two frame members (2, 3) are each supporting the sleeve. Each frame member may comprise a clamping spring, which serves as a connection between the frame member and the sleeve. The invention also relates particularly to a lamp with an outer vessel (45), which is a parabolic aluminized reflector, and a light source, which is a ceramic discharge metal halide burner.
Abstract:
A fluorescent lamp 1 is constructed in which more than two lead wires (5), (6), (11) and (12) are connected to respective electrodes (3) and (4) of both end portions of a glass tube (2), the glass tube (2) having a uniform diameter of less than 6.5 mm. Also, when the fluorescent lamp 1 is manufactured, an electrode assembly in which two glass beads are fixed to more than two lead wires extended from the electrodes, mercury amalgam being welded to the lead wires is used, the electrode assembly is temporarily fastened by welding the inside glass bead to the glass tube, mercury is evaporated by heating the mercury amalgam and the inside of the glass tube is sealed by welding the outside glass bead to the glass tube.
Abstract:
A light source device includes: a light source lamp having a light-emitting tube with a discharge space and a pair of electrodes disposed in the discharge space of the light-emitting tube; a reflector extending in a substantially concave shape in section, the reflector reflecting a light beam irradiated from the light source lamp; and a sub-reflection mirror having a reflection surface that is disposed to face a reflection surface of the reflector, the sub-reflection mirror reflecting a part of the light beam irradiated from the light source lamp toward the discharge space. The light-emitting tube has a light-emitting section having the discharge space therein and sealing sections provided on both sides of the light-emitting section. The sub-reflection mirror is formed in a shape of a bowl that covers the light-emitting section of the light-emitting tube, the sub-reflection mirror having an opening for mounting the sub-reflection mirror to the light-emitting tube by allowing one of the sealing sections of the light-emitting tube to be inserted thereinto. A heat insulating member is provided to at least a part of the light-emitting section and the other one of the sealing sections of the light-emitting tube.
Abstract:
An arc discharge metal halide lamp for use in selected lighting fixtures having a discharge chamber with light permeable ceramic walls of a selected shape about a discharge region of a selected volume. A pair of electrodes are supported in the discharge region separated from one another by a separation length. The separation length is in a ratio to the effective inner diameter that is greater than four. Ionizable materials are provided in the discharge region comprising a quantity of mercury in a ratio to the discharge region volume that is less than 4 mg/cm3, a noble gas, praseodymium halide, and sodium halide.
Abstract translation:一种用于所选照明器具的电弧放电金属卤化物灯,其具有放电室,所述放电室具有围绕选定体积的放电区域的选定形状的透光陶瓷壁。 一对电极在分离长度分离的放电区域中被支撑。 分离长度与大于4的有效内径成比例。 可放电材料设置在放电区域中,该放电区域包括与放电区域体积小于4mg / cm 3,稀有气体,卤化镨和卤化钠的量的汞。