Abstract:
A carrier element, on which an Hg-containing material for application in a discharge lamp (1) is formed, has at least one depression (12, 20 to 23), in which the Hg-containing material (17) is arranged. A method for producing such a carrier element and to a discharge lamp with such a carrier element is also disclosed.
Abstract:
Compositions are disclosed comprising mercury, titanium, copper and one or more of tin, chromium and silicon, useful for the release of mercury in applications requiring the same, in particular in fluorescent lamps. A process for the preparation of these compositions is also disclosed.
Abstract:
Low-pressure mercury vapor discharge lamp has aa radiation-transmitting discharge vessel (10) enclosing, in a gastight manner, a discharge space (13) provided with a filling of mercury and a rare gas. The discharge vessel (10) has a discharge means (20a) for maintaining a discharge in the discharge space (13). Container (3) comprising mercury or an amalgam (4) is arranged in the discharge vessel (10). The container (3) is provided with an opening (24). The container (3) is manufactured from a glass with a transmission of less than 0.4 in the wavelength range from 0.8 to 1.5 μm. Preferably, the transmission of the glass is less than 0.25 in the wavelength range from 1.0 to 1.2 μm. Preferably, the glass comprises at least 2% by weight Fe2O3. Preferably, the container (3) is provided in an exhaust tube (9) in an end portion (12a) of the discharg vessel (10).
Abstract:
A UV lamp unit is provided and comprises a lamp in the form of a mercury low pressure amalgam lamp that is provided with at least one amalgam deposit. A cladding tube surrounds the lamp in such a way that an air gap is provided between the lamp and the cladding tube. An element is provided in one axial direction of the lamp, in the region of the at least one amalgam deposit, for influencing the temperature of the amalgam.
Abstract:
Disclosed is a system for inspecting an object. Such system comprises; a) an irradiation system for irradiating the object to be inspected, said irradiation system comprising a radiation source, b) an objective, imaging the irradiated object onto an image sensor, and c) an image sensor for transforming the radiation coming from the object to be inspected into a detectable signal. The radiation source comprises; A) at least one cathode, B) at least one anode, C) one or more plates, positioned in between said cathode(s) and said anode(s), and being electrically substantially insulated, wherein each plate comprises at least one hole, aligned in such a way that a continuous path is created between cathode and anode over which a discharge can extend.
Abstract:
A UV lamp unit includes a lamp in the form of a mercury low pressure amalgam lamp that is provided with at least one amalgam deposit. A cladding tube surrounds the lamp in such a way that an air gap is provided between the lamp and the cladding tube. An element is provided in one axial direction of the lamp, in the region of the at least one amalgam deposit, for influencing the temperature of the amalgam.
Abstract:
A device for retaining a mercury source in the discharge space of a low-pressure discharge lamp is disclosed. The mercury source retaining device comprises a holder, which has an inner space communicating with the discharge space and a receiver opening for receiving a mercury source. The retaining device further comprises resilient clamping means for clamping the holder in a tubular space segment of the discharge space and resilient retaining means at least partially blocking the receiver opening. The resilient retaining means are adapted for allowing a passage of the mercury source in a direction towards the inner space of the holder, but block the movement of the mercury source through the receiver opening in a direction out of the holder.
Abstract:
A compact self-ballasted fluorescent lamp (10) which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp (10) includes a cover (14), a lighting circuit (16), an arc tube (18), a base (12) and a globe (17) and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube (18) is comprised of a plurality of U-shaped bent bulbs (31) which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube (18) is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope (19) comprising the cover (14) and the globe (17) has a height ranging from 110 to 125 mm including the height of the base (12).
Abstract:
A compact self-ballasted fluorescent lamp (10) which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp (10) includes a cover (14), a lighting circuit (16), an arc tube (18), a base (12) and a globe (17) and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube (18) is comprised of a plurality of U-shaped bent bulbs (31) which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 20 to 300 mm long, the arc tube (18) is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope (19) comprising the cover. (14) and the globe (17) has a height ranging from 110 to 125 mm, including the height of the base (12).
Abstract:
A fluorescent lamp capable of fully securing a portion for containing a mercury amalgam pellet and reliably preventing the mercury amalgam pellet from moving toward the inside a discharge tube, and a method for manufacturing the fluorescent lamp. The fluorescent lamp includes a glass tube having a fluorescent substance layer on the inner surface, a sealed portion formed at an end of the glass tube, a slender glass tube having an inner space that is in communication with the inside of the glass tube and is not in communication with the outside of the glass tube, and a mercury amalgam pellet contained in the slender glass tube. The slender glass tube has a small-diameter part with an inner diameter smaller than the diameter of the mercury amalgam pellet and a large-diameter part with an inner diameter larger than the diameter of the mercury amalgam pellet. The slender glass tube is welded to the glass tube so that the small-diameter part is placed in the sealed portion and the large-diameter part is placed further away from the glass tube than the smaller-diameter part.