Abstract:
A short arc lamp is optimized for improved thermal performance characteristics. The short arc lamp includes a ceramic body having a concave reflective surface formed in an upper end thereof, a base adapted to receive the base end of the ceramic body in abutting relation, and a window frame assembly positioned in abutting concentric relation with the upper end of the ceramic body. In particular, the ceramic body is formed from beryllia (beryllium oxide) which has superior thermal transfer characteristics. The lamp is further provided with a specialized coating which help keep infra-red (IR) light energy from escaping from the lamp. In one instance, the coating is an IR reflective coating placed on the window of the lamp to reflect IR light energy back into the lamp where it can be conducted outwardly through the beryllium oxide body and base. In another instance, the reflector surface of the beryllium oxide body is provided with a dichroic coating which reflects visible light, while allowing IR energy to pass through. Accordingly, the IR energy passes through to the ceramic body and is transferred outwardly through the base.
Abstract:
The invention relates to a high-pressure discharge lamp provided with a discharge vessel. The discharge vessel is enveloped with clearance by an outer bulb having a cap. According to the invention, the outer bulb is translucent and substantially tubular in shape.
Abstract:
A high pressure mercury lamp includes a luminous bulb in which at least mercury is enclosed inside the bulb, and a pair of sealing portions that retain airtightness of the luminous bulb. The amount of the enclosed mercury is 230 mg/cm3 or more based on the volume of the luminous bulb, and heat-retaining means for retaining beat in the luminous bulb is provided. Thus, the present invention can suppress blackening of high pressure mercury lamps having a very high operating pressure.
Abstract translation:高压汞灯包括:灯泡内至少封入汞的发光管,以及保持发光管气密性的一对密封部。 封闭汞的量基于发光管的体积为230mg / cm 3以上,并且提供用于保持发光管中的节拍的保温装置。 因此,本发明可以抑制具有非常高的工作压力的高压汞灯的黑化。
Abstract:
An emission mix slurry for coating fluorescent lamp electrodes is provided having a suspension medium of polyethylene glycol 200, and a mixture of calcium-, strontium-, and barium carbonate powder as suspended solids. In another embodiment, the suspension medium is primarily water. The slurry is formulated such that upon activation, the carbonates are oxidized to their corresponding oxides to form the emission mix oxide coating while the polyethylene glycol suspension medium is cleanly oxidized evolving substantially only CO2 and H2O vapor. A method for preparing the emission mix slurry is also provided.
Abstract:
A red automotive incandescent lamp having a sealed lamp envelope formed from an amber glass, a pair of filaments located within the lamp envelope, and a red pigmented coating applied to an external surface of the envelope. The amber glass provides initial filtering of the shorter wavelengths of visible light, so that the red pigment has to filter out less light and therefore can be made less opaque. As a result, the lamp produces the desired red colored light at a total light output that meets applicable SAE and ECE requirements for automotive lamps.
Abstract:
A mercury-containing material, a method for producing the same and a fluorescent lamp using the same that can enclose a minimal amount of mercury in a glass bulb precisely, prevent flaws in a fluorescent coating while suppressing a noise during a lamp transportation, and prevent deterioration in appearance are provided. A surface of liquid mercury is coated with a continuous film made of metal oxide or metal complex oxide by dipping the mercury in a metal alkoxide solution and then heating the mercury on which the metal alkoxide solution adheres. Accordingly, the minimal amount of the mercury can be enclosed in the fluorescent lamp precisely, thus achieving friendliness to the environment. It also is possible to prevent flaws in the fluorescent coating while suppressing a noise during the lamp transportation and further to prevent deterioration in appearance.
Abstract:
An electric lamp which is provided with an electric light source in a light-transmitting bulb provided with a coating comprising an inorganic colored pigment selected from the group formed by oxide nitride pigments of the general formula A1-xAnullxBO2nullxN1nullx, wherein AnullMg, Ca, Sr, Ba, Zn, AnullLn, Bi, Al, Fe, BnullV, Nb, Ta, Mo, W and BnullnullTi, Zr, Hf, Sn, Ge, Si, Nb, Ta and 0
Abstract:
A fluorescent lamp with compensation for ineffective luminance thereof, including a lamp tube; and a fluorescent layer incompletely coated on an inner surface of the lamp tube to define a first light-transmitting section at a middle portion of the lamp tube and a second light-transmitting section at two ends of the lamp tube, wherein the second light-transmitting section has an area larger than that of the light-transmitting section.
Abstract:
A method for applying a coating (23) to a part of a surface of a lamp (20). The aim is to provide a simple manner of applying exact coatings to parts of surfaces with complicated designs. To this end, the lamp is vacuum-coated. The parts of the surface of the lamp (20) that are not to be coated are covered by a mask (3) and at least one coat is applied to the non-covered parts of the surface. The mask (3) is located at a predetermined distance (d) from the part of the surface of the lamp (20) and the mask (3) is oriented in relation to an illumination element (2) or a base (21) of the lamp (20). The invention also relates to a coated lamp that is produced according to a method of this type.
Abstract:
A short arc type mercury lamp in which a cathode and an anode are disposed opposite one another inside an arc tube, at least a noble gas and mercury are filled into the arc tube, cathode contains thorium oxide, a cone-shaped part that continues on from a cathode body is formed on the cathode, and a protruding part that continues on from the cone-shaped part is formed, wherein the number of grain boundaries on a straight line that passes through the approximate center of an arbitrary section in the radial direction of the protruding part is at least 0.5 per mm but not more than 100 per mm.