Abstract:
A flashlight comprising a mercury vapour discharge lamp (12) as e.g. a HID Lamp (High Intensity Discharge Lamp) with adjustable light output is described. The extreme brightness and peak intensity of mercury vapour discharge lamps (12) is enabled for signalling in mobile lighting applications without reducing the lifetime of the 5 mercury vapour discharge lamps (12).
Abstract:
A flashlight comprising a high-pressure mercury vapor discharge lamp (1) (UHP lamp) is described. The miniaturized UHP lamp (1) enables flashlights with improved range due to the small electrode distance at high intensity in comparison to conventional HID lamps (mostly used in automotive lighting applications) as proposed by prior art. Additionally the application range is enlarged due to the smaller size of the high-end flashlight and the reduced requirements with respect to the driver circuitry.
Abstract:
A low-pressure gas discharge lamp provided with a gas discharge vesseL (1) containing a gas filling with a metal chelate complex (ML2) of a central metal ion and at least one bivalent or multivalent ligand and with a buffer gas, with internal or external electrodes (2), and with means for generating and maintaining a low-pressure gas discharge.