Abstract:
An optical system for generating broadband light via light-sustained plasma formation includes a chamber, an illumination source, a set of focusing optics, and a set of collection optics. The chamber is configured to contain a buffer material in a first phase and a plasma-forming material in a second phase. The illumination source generates continuous-wave pump illumination. The set of focusing optics focuses the continuous-wave pump illumination through the buffer material to an interface between the buffer material and the plasma-forming material in order to generate a plasma by excitation of at least the plasma-forming material. The set of collection optics receives broadband radiation emanated from the plasma.
Abstract:
A gas discharge lamp, photoionization sensor employing the gas discharge lamp, and method of manufacturing the lamp. The lamp includes a longitudinally extending strip of getter 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:
Provided is a microwave plasma discharge lamp apparatus which includes a rectangular waveguide having a rectangular shape one end of which is closed and the other end is open and receiving a microwave through an opening to put out linearly polarized microwaves; a discharge lamp; a resonator cavity, formed in a cylindrical shape, one end of which is open, which is disposed to surround the discharge lamp, and which is made of a conductive mesh, thereby allowing the passage of the light from the discharge lamp; and a phase shifter, which has a cross-shaped waveguide opened in a propagation direction of the linearly polarized microwaves, is disposed between the other end of the rectangular waveguide and one end of the resonator cavity, and receives the linearly polarized microwaves from the rectangular waveguide to generate elliptically polarized microwaves in the cylindrical resonator cavity. The elliptically polarized microwaves discharge the discharge lamp.
Abstract:
The user of plasma light technology and remote lighting control techniques may enable a single master controller to control a large number of lighting fixtures. Multiple lighting fixtures may be equipped with control applications. Each control application may control the radio frequency driver of a lighting fixture that drives the plasma bulbs of the lighting fixture to produce light output for growing plants. The master controlled may execute on one or more computing devices. The master controller may send input instructions to the control applications of the lighting fixtures via a network. The instructions may be implemented by the control applications to command the radio frequency drivers to regulate a spectral distribution and/or intensity of the light output of the lighting fixtures.
Abstract:
The invention relates to a lamp (1) comprising a light source (2) that can be excited by microwaves to provide illumination and a housing (4) surrounding the light source, said housing having at least one light exit opening (5). The light exit opening (5) has associated therewith a grille structure (6) or a labyrinth structure (7) acting as a microwave shield.
Abstract:
A fast starting induction RF fluorescent lamp capable of changing illumination level through a burst-mode dimming facility, comprising a dimming facility enabling the induction RF fluorescent lamp to dim in response to a control signal, and with structures within the bulb envelope that facilitate rapid luminous development during a turn-on phase.
Abstract:
A sulfur lamp having low microwave leakage includes a structure made of a plurality of electrically conductive strips. The lamp cage is formed from respective halves removably joined together and configured to be resonant at the microwave frequency generated by the magnetron, in a mode that induces wall currents parallel to the joints formed by joining the halves together.
Abstract:
A discharge lamp (20) for providing visible and/or infrared radiation comprising a stationary light transmitting bulb (21) filled with a composition that emits light when in plasma state, a radiofrequency source (41) having an output terminal (44) radiating a radiofrequency field for ionizing and heating the composition in the bulb to bring it in a plasma state (35), and a dielectric rod (22) aligned with the output terminal and positioned between the output terminal (44) and the bulb (21) acting as dielectric waveguide for the radiofrequency field.
Abstract:
An electrodeless discharge lamp suitable for the use in solar simulators, with an emission spectrum following, as much as possible, the AM1.5G standard. According to a preferred embodiment the lamp has a quartz bulb is filled with a composition comprising an inert gas, for example N2, He, Ne, Ar, Kr, Xe or a mixture thereof, and a first and a second active components, the first active component being an antimony or bismuth halide or a mixture of antimony halides; while the second component is SnI2 a mixture of halides of: In, Sn, Ag, Bi, Cu. Preferably, the halides are bromides or iodides or chlorides due to their favorable volatilities.
Abstract:
A plasma lighting system includes a magnetron configured to generate microwaves, a bulb filled with a main dose and an additive dose, wherein the main dose and the additive dose generate light under the influence of microwaves and have the maximum intensities of respective intrinsic wavelengths at different wavelengths, a waveguide configured to guide the microwaves generated by the magnetron to the bulb, a motor configured to rotate the bulb, a sensor configured to sense the intensity of light having a specific wavelength emitted from the bulb, and a controller connected to the motor, wherein the controller adjusts Revolutions Per Minute (RPM) of the bulb based on the intensity of light having the specific wavelength sensed by the sensor.