Operating device and method for operating at least one hg low pressure discharge lamp
A technology for low-pressure discharge lamps and instruments, which is applied in the direction of electric light sources, electrical components, lighting devices, etc., and can solve the problem that reliable or accurate lamp operating parameters cannot be predetermined, Hg-vapor pressure cannot be accurately determined, and reliable operation of lamps cannot be guaranteed. and other problems, to achieve the effect of short response time and low cost
Inactive Publication Date: 2011-11-09
OSRAM GMBH
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Problems solved by technology
Without knowledge of the location of the cold spot, the Hg-vapor pressure cannot be accurately determined, and thus reliable or accurate lamp operating parameters cannot be predetermined
Reliable operation of the lamp is thus not guaranteed
Method used
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[0035] figure 1 The Hg-emission spectra at 436, 764, 365 and 546 nm are shown based on the curves of the correlation between the Hg-emission spectrum at 405 nm and the temperature at the cold spot of the Hg-low-pressure discharge lamp. As clearly identifiable, a clear change occurs over the temperature range, so that in turn the temperature of the Hg-low-pressure discharge lamp and thus the Hg-vapor pressure can be deduced from certain values of the relationship of the two emission lines. The relationship of the emission intensity at 436 nm to the intensity of the Hg line at 405 nm is obviously particularly suitable.
[0036] figure 2 A schematic diagram of the structure of an operating device 10 according to the invention is shown. For example, a Hg low-pressure discharge lamp 12 is shown, in which a first electrode 14 a and a second electrode 14 b can be identified, which are arranged opposite each other in the bulb 16 . The inlet opening of the first optical waveguide...
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The present invention relates to an operating device for operating at least one Hg low pressure discharge lamp (12) comprising a first (14a) and a second electrode coil (14b), an input for connecting a supply voltage, an output for connecting the at least one Hg low pressure discharge lamp (12), 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 coupled to the device (24) for providing the parameter correlated with the Hg vapor pressure and to the output of the operating device, said microcontroller being adapted to provide at the output 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 for operating the at least one Hg low pressure discharge lamp.
Description
technical field [0001] The invention relates to an operating device for operating at least one Hg-low-pressure discharge lamp comprising a first and a second electrode coil, which has: an input for connection to a power supply; an output for connection to at least one Hg-low-pressure discharge lamp terminal; means for supplying a quantity related to the Hg-vapor pressure in the Hg-low-pressure discharge lamp; a microcontroller connected to the means for providing a quantity related to the Hg-vapour pressure and with the output of the operating instrument The terminals are connected and are designed to provide a signal at the output for operating at least one Hg-low-pressure discharge lamp, wherein the signal is characterized by at least one lamp operating parameter that depends on a Hg-vapor pressure-dependent variable. The invention also relates to a corresponding method for operating at least one Hg low-pressure discharge lamp. Background technique [0002] It is known fr...
Claims
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IPC IPC(8): H05B41/36
CPCH05B41/36
Inventor 阿明·康拉德罗格·亨特马丁·萨考拉尔夫·霍克
Owner OSRAM GMBH