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Control and regulation devices for gas discharge lamps for motor vehicle headlights

A technology for gas discharge lamps and adjustment devices, applied in lighting devices, electric light sources, electrical components, etc., can solve problems such as changes in luminous efficiency, poor efficiency, acceleration, etc., and achieve the effect of weakening the effect of light fluctuations

Inactive Publication Date: 2015-11-25
AUTOMOTIVE LIGHTING REUTLINGEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, cold or cool gas discharge lamps have poorer efficiency and thus emit less light at the same electrical power than gas discharge lamps which have reached their operating temperature
In addition, due to mechanical acceleration, as occurs when the headlights vibrate or vibrate when driving on poor roads, due to arc deflection, arc prolongation or due to the cooling of the arc when it hits the glass bulb, it can cause Luminous Efficiency Change

Method used

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  • Control and regulation devices for gas discharge lamps for motor vehicle headlights
  • Control and regulation devices for gas discharge lamps for motor vehicle headlights

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0042] in particular, figure 1 A lighting device 100 in the form of a motor vehicle headlight is shown. The lighting device 100 comprises a housing 101, which is preferably made of plastic. In the light exit direction 102 , the housing 101 has a light exit opening 103 which is closed by a light-transmissive cover 104 .

[0043] Arranged inside the housing 101 is a light module 105 which has a light source in the form of a gas discharge lamp 106 and a reflector 107 . The gas discharge lamp 106 has a glass bulb 108 filled with a gas which allows a stably burning arc to be ignited and maintained. The composition of the gas fill of the glass bulb 108 varies from manufacturer to manufacturer.

[0044] The gas discharge lamp 106 preferably forms an integral unit together with the control and / or regulating device 109 . The control and / or regulation device 109 internally comprises a DC / DC transformer 110, a control device 111 with a microprocessor and storage means and not in fig...

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Abstract

The present invention relates to an open-loop and / or closed-loop control device (109) for a gas discharge lamp (106) of a motor vehicle headlamp, wherein the open-loop and / or closed-loop control device (109) has a housing and control electronics which are arranged in the interior of the housing and are configured to adjust at least one operating variable of the gas discharge lamp (106). The open-loop and / or closed-loop control device (109) has a light sensor (113) which is arranged in the interior of the housing, and said open-loop and / or closed-loop control device (109) is configured to allow light generated by the gas discharge lamp (106) to be incident on the light sensor (113) and to adjust to a setpoint value a signal of the light sensor (113) which results from the incidence of light as an actual value by adapting the supply of electrical power to the gas discharge lamp (106) in a closed-loop control circuit (200).

Description

technical field [0001] The invention relates to a control and / or regulation device and a method for a gas discharge lamp of a motor vehicle headlight. Such control and / or regulating devices and such methods are respectively known per se. Background technique [0002] The known control and / or regulating device has a housing and control electronics arranged in the housing, the control electronics serving to regulate at least one operating parameter of the gas discharge lamp. Known methods set an operating parameter for adjusting the gas discharge lamps of such motor vehicle headlights. [0003] Motor vehicle headlights are arranged in the front region of the motor vehicle and serve to illuminate the road ahead of the motor vehicle. Gas discharge lamps are used here as light sources, the light of which is distributed by the headlights in the form of a desired light distribution, for example a dipped beam distribution or a high beam distribution, into the area in front of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B41/288
CPCH05B41/288
Inventor 鲁迪格·劳本施泰因克里斯蒂安·约翰
Owner AUTOMOTIVE LIGHTING REUTLINGEN GMBH
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