Abstract:
Disclosed is a plasma light source automated luminaire (12) employing a plasma microwave powered plasma light source (32) where the microwave generator (40) and its power supply (43) are separated; either both within the head of the luminaire (12), or the power supply (43) outside the head.
Abstract:
A gas discharge lamp, photoionization sensor employing the gas discharge lamp, and method of manufacture. The lamp (10) includes a housing (20) containing a working gas sealed within the housing, an ultra-violet transparent window (30) through a first longitudinal end of the housing, and a longitudinally extending strip of getter (40) within the housing. The method of manufacture includes the steps of (i) obtaining a glass tube, (ii) constricting the tube intermediate the longitudinal ends to divide the bore into first and second chambers in fluid communication with one another through a passageway in the constriction, (iii) attaching an ultraviolet transparent window over the open end of the first chamber, (iv) inserting a strip of getter into the first chamber through the passageway in the constriction, (v) purging the first chamber with a noble gas, and (vi) heating the tube at the constriction to detach the first chamber from the second chamber and seal the constricted end of the first chamber.
Abstract:
The invention relates to a device (1) for irradiating surfaces, having a radiating element, wherein the radiating element has at least one tunnel-like passage (3) and a means (8, 11) which is designed to allow a process gas to flow through the at least one tunnel-like passage (3). A separate gas supply device can thereby be omitted. The device can optionally also have a socket (8) of the radiating element having at least one gas opening (12) for supplying and/or discharging process gas.
Abstract:
A lamp has microwave resonant body (11) of transparent quartz. The body has a central bore (16), having a sealed plasma enclosing bulb (17) inserted in it. The bulb is of quartz also and has an external diameter which is a close fit in the bore. The bulb itself is of drawn quartz tube (18) and as such has a smooth internal bore (19). End caps (20) are fused to the tube and encapsulate a charge of a material excitable to form a light emitting plasma in the bulb when microwaves are fed into the body via an antenna (7) in a bore (21) in the body. The body is sized to establish resonance within the Faraday cage in the body (11), bulb (17) and fill containing void (22) within the bulb. There is negligible gap between the bulb and body, whereby they can be regarded as one for resonance purposes. The bulb is fixed in the body by welds (23).
Abstract:
A light source is powered by a magnetron (1) and has a quartz crucible (2) having a plasma void (8) with an excitable fill, from which light radiates in use. Two aluminium attachment blocks (3,4) are attached together and the block (3) is attached to a casing (5) of the magnetron (1) by screws - not shown. The quartz crucible is attached to the block (4) by a Faraday cage (6), in the form of a perforate metal enclosure secured at its rim (7) to the block (4). An output formation (11) of the magnetron has a conductive, copper cap (12) fitted in electrical contact with it. The cap is extended by a copper rod (14). The rod extends through the blocks (3,4) into a bore (15) in the crucible (2) for coupling microwaves from the magnetron into the crucible. An airspace (16) is provided around the cap (12) in the block (3). From the cap, the rod extends with negligible air gap in an alumina ceramic tube (17) through the airspace and a boss (18) of the block (4) located in an aperture in an end wall of the block (3).
Abstract:
A light source device provided with a light emission tube (1) in which a light emitting element is enclosed and at least one laser oscillator part (2) for radiating a laser beam towards said light emission tube, for focusing a beam within a light emission tube with a large solid angle and for preventing that the beam with a high energy density impinges upon the wall of the light emission tube, the light emission tube has a tube wall, part of which is made to function as a focusing means (32), or the light emission tube has a focusing means at the inner surface thereof.
Abstract:
The present invention relates to a light fixture comprising an electrodeless plasma source, said electrodeless plasma source comprises a resonator and a light bulb, said light bulb is operating inside a cavity of a TIR where the TIR lens comprises a metal grid covering at least a part of said TIR lens, the metal grid grounding electromagnetic radiation generated by said electrodeless plasma source. In another embodiment, the light fixture comprises blowing means sending an air stream into the cavity. A further embodiment also comprises at least one LED, which ELPS bulb and the LED are controlled by a control system, which control system performs dimmer control of at least the ELPS and the LED.
Abstract:
The invention relates to a method for producing a dielectric barrier discharge lamp, which is characterized in that during a filling step, before the discharge space is closed, a part (3) of the discharge vessel is held up by way of a support element (15) that is subsequently at least partially softened in order to lower the upheld part (3), said support element (15) being disposed outside the discharge space.