Abstract:
The invention relates to an operating device of at least one Hg low pressure discharge lamp (12) comprising a first (14a) and a second electrode coil (14b), a device (24) for providing a parameter that is correlated with the Hg vapor pressure in the Hg low pressure discharge lamp (12), a microcontroller (38) that is designed to provide a signal for operating the at least one Hg low pressure discharge lamp (12), wherein the signal is characterized by at least one lamp operating parameter that depends on the parameter correlated with the Hg vapor pressure, wherein the device (24) for providing a parameter correlated with the Hg vapor pressure in the at least one Hg low pressure discharge lamp (12) comprises at least one device for detecting emission spectra (18a, 20, 26, 28, 30) of at least pre-determinable spectral ranges, wherein the device for detecting emission spectra (18a, 20, 26, 28, 30) comprises at least one light pick-up device (18a) disposed in the beam path of the at least one Hg low pressure discharge lamp (12). The invention further relates to a corresponding method.
Abstract:
A method for producing an optoelectronic component (1) is specified. This involves providing a housing basic body (11). A luminescence diode chip (2) and an uncovered part of the outer area of at least one first electrical conductor (3, 4) are arranged on the housing basic body (11). The luminescence diode chip (2) is suitable for emitting an electromagnetic primary radiation. Using electrophoresis, a luminescence conversion material (82) is applied to at least the uncovered part of the outer area of the first electrical conductor (3) and to uncovered electrically conductive outer areas of the luminescence diode chip (2). The luminescence conversion material (82) contains at least one phosphor suitable for at least partly converting the primary radiation into a secondary radiation. An optoelectronic component (1) is additionally specified. Electrically insulating outer areas of the optoelectronic component (1) which are contained in a depression (5) are substantially free of the luminescence conversion material (82).
Abstract:
A luminophore consisting of the BAM system as a host lattice, having the stoichiometry MxEu1-xMg1-y+dMnyAl10+2fO17+d+3f, is provided, wherein 0.2@x@0.48; 0@y@0.3; 0@d@0.1; -0.1@f@1.0.
Abstract:
A conversion LED is provided. The conversion LED may include a primary light source which emits in the short-wave radiation range below 420 nm, and a luminophore placed in front of it consisting of the BAM system as a host lattice for at least partial conversion of the light source's radiation into longer-wave radiation, wherein the BAM luminophore is applied as a thin layer having a thickness of at most 50 μm directly on the surface of the light source, the BAM luminophore having the general stoichiometry (M1−r Mgr)O*k(Al2O3), where r=0.4 to 0.6 and M=EAeEu1−e, with EA=Ba, Sr, Ca, and e=0.52 to 0.8, and k=1.5 to 4.5.
Abstract:
The invention relates to an illuminant compound for a discharge lamp (1), said compound having an emission spectrum in the green spectral range and being designed to absorb the radiation emitted in the visible spectral range by an Hg source and to convert said visible radiation of the Hg source into the emission spectrum of the illuminant compound. The invention also relates to a discharge lamp comprising an illuminant compound of this type.
Abstract:
The electrical lighting unit in the form of a ceiling mounted unit [4] uses red, green, and red, RGB, tubes filled with Xenon gas. These are located between a lower reflector [2] and an upper reflector [1]. The tubes fit into end plates having sockets and starter circuits and provides a facility for various colours.