摘要:
A method of making an electrodeless incandescent bulb comprises the steps of: providing a bulb tube of quartz glass, closing one end of the bulb tube, forming a neck having a bore less than the internal diameter of the bulb tube, inserting a pellet of excitable material into the bulb tube through the adjacent neck, evacuating the bulb tube through the neck and sealing the bulb.
摘要:
A metal halide lamp comprising a discharge vessel (3) enclosing a discharge space (11 ) of volume V(cm3) and containing an ionizable gas filling comprising Hg in a quantity of mass m(g) and at least a metal halide, wherein in said discharge space (11) two electrodes (4, 5) are arranged whose tips (4b, 5b) have a mutual interspacing EA so as to define a discharge path between them, the discharge space (11 ) having a length L(mm) measured along the discharge path and a largest diameter D(mm) square thereto, wherein the ratio X=LVD satisfies the relation 0.7
摘要:
A high-pressure mercury lamp includes an arc tube, and a pair of electrodes is provided in a discharge space of the arc tube. In the discharge space, mercury and xenon gas are sealed. The amount of mercury per unit volume that is to be sealed in the discharge space is within a range of 0.12 mg/mm 3 to 0.35 mg/mm 3 . A pressure of the xenon gas in the discharge space is within a range of 2.0×10 5 Pa to 2.0×10 6 Pa.
摘要:
The present invention provides a lutetium oxide sinter to which yttrium is added in an amount of 100 mass ppm to 7000 mass ppm, whose average particle size is from 0.7 to 20 µm, and with which there is no precipitation of a hetero phase containing yttrium at the grain boundary.
摘要:
The invention concerns a barrier discharge lamp wherein an ultraviolet radiation flux (1) is emitted by a working gas confined between two coaxial silica tubes (TI and TO) connected at both ends. Said gas is subjected therefor to electrical pulses supplied by a generator (3) and applied between an inner electrode (El) and an outer electrode (EO) including a conductive window (F). The cooling is provided by a driven air flow, in particular in the tube (TI), by a fan (4). Its efficacy is enhanced by a radiator (EV) associated with the electrode (EI). It is further enhanced by a convective working gas flow. Said flow is provided not only around the tube (TI) in the vicinity of the electrodes, but in an axial plane as well with channels on either side of said tube at both ends thereof spaced apart from at least one of the electrodes. The invention is applicable to industrial processes and medical treatments using ultraviolet radiation with very small spectral width. It is particularly advantageous for treating psoriasis and vitiligo.
摘要:
A high-pressure discharge lamp (1) comprising at least one burner (2) having a discharge space, and comprising two electrodes extending in said discharge space, a gas filling in the discharge space containing at least an inert gas and a suitable metal halide mixture, and comprising an outer bulb (3) which is attached to the burner (2) and the basic material of which is doped with an absorbing material, the high-pressure discharge lamp (1) comprising at least one interference filter (6) which reflects predominantly in the wavelength range of 400 to 550 nm, and which is arranged directly on at least a part of the outer surface of the outer bulb (3), and the outer bulb (3) being doped with a material that is absorbing for wavelengths
摘要:
A ceramic discharge vessel for a lamp includes a hollow body, two capillaries that extend from a same side of the body, and a strengthening web between and joining the two capillaries to each other.
摘要:
An electron emission device (102) with improved electron emission efficiency and an electron emission type backlight unit with a new structure using the electron emission device in which an electric field between an anode electrode (80) and a cathode electrode (120) is effectively blocked, and electrons are emitted continuously and stably by a low gate voltage, thereby improving light-emitting uniformity and efficiency. Also provided is a flat display apparatus employing the electron emission type backlight unit (100) having the electron emission device. The electron emission device includes a base substrate (110); a cathode electrode formed on the base substrate having a cross-section whose height is greater than its width; a gate electrode (140) that is formed on the base substrate and alternately separated from the cathode electrode and has a cross-section whose height is greater than its width; and an electron emission layer (150) disposed on a surface of the cathode electrode toward the gate electrode.
摘要:
An electron emission device (100) having improved electron emission efficiency and an electron emission type backlight unit including the electron emission device in which an electric field between an anode electrode (80) and a cathode electrode (120) is effectively blocked, and electrons are emitted continuously and stably by a low gate voltage, thereby improving light-emitting uniformity and light-emitting efficiency. Also provided is a flat display apparatus employing the electron emission type backlight unit having the electron emission device. The electron emission device includes a base substrate (110); an insulating layer (130) disposed on a surface of the base substrate; a cathode electrode formed on the insulating layer; a gate electrode (140) that is formed on the base substrate, separated from the cathode electrode, and higher than the cathode electrode; and an electron emission layer (150) that is electrically connected to the cathode electrode and disposed to face the gate electrode (140).
摘要:
An illuminating glass that is capable of shielding of ultraviolet radiation lying on the large wavelength side, for example, 313 nm, and exhibits high transparency. The illuminating glass is characterized by containing, by mass, 50-78% SiO 2 , 11-25% B 2 O 3 , 0-10% Al 2 O 3 , 3-20% Li 2 O + Na 2 O + K 2 O, 0-10% MgO, 0-10% CaO, 0-20% SrO, 0-20% BaO, 0-15% ZnO, 2.6-9% TiO 2 and 0.001-5% AS 2 O 3 + Sb 2 O 3 .
摘要翻译:能够屏蔽位于大波长侧的紫外线照射例如313nm的照明玻璃,显示高透明性。 该照明玻璃的特征在于,以质量计含有50-78%的SiO 2,11-25%的B 2 O 3,0-10%的Al 2 O 3,3-20%的Li 2 O + Na 2 O + K 2 O,0-10%MgO,0-10%CaO,0-20%SrO,0-20%BaO,0-15%ZnO,2.6-9%TiO 2和0.001-5%AS 2 O 3 + Sb 2 O 3。