Abstract: The invention relates to an illuminant mixture for a discharge lamp (1) with a first and at least one second illuminant composition, said first illuminant composition having an emission spectrum in the green to yellow spectral range and having a first illuminant compound, devoid of Tb and designed to absorb the UV radiation emitted by an Hg source. The invention also relates to a discharge lamp (1) with a discharge vessel (2) and an illuminant layer (12) applied thereto, said layer containing the illuminant mixture according to the invention.

Abstract: The invention relates to a lighting device to be installed in and/or behind a panel (3), in particular ceiling and/or wall cladding, comprising at least one fitted lamp (1, 1a, 1b) having at least one housing (4) which ends approximately flush with the panel (3), at least one light exit surface (10) and at least one LED module (10), the LED module (5) comprising at least one light-emitting diode (LED) (6). At least one ventilation opening (11, 12) is arranged between the light exit surface (10) and the housing (4) and means (13) are provided for generating an air flow through the ventilation opening (11, 12).

Abstract: The invention relates to a light source, especially a fluorescent lamp, comprising at least one bulb, a silicon rubber which is resistant to high temperatures being arranged on the bulb. Said silicon rubber is provided with at least one pigment influencing the colour appearance and light saturation in order to generate a saturated colour appearance.

Abstract: Disclosed is a discharge lamp, in particular a high pressure discharge lamp, with at least one discharge vessel and at least one ignition assisting element, preferably an ignition assisting wire or an electrically conducting coating of the discharge vessel, which element can be electrically connected to a power feed to the discharge lamp and which extends at least in some sections along the discharge vessel, wherein a device is provided for interrupting the electrical connection between at least one partial section of the ignition assisting element and the power feed in the operating state of the discharge lamp. Additionally disclosed are an ignition assisting device and a method for operating a discharge lamp of this kind.

Abstract: The invention relates to a mercury source for a low-pressure discharge lamp comprising an amalgam body which is arranged on a front surface of a wire or enclosed in a perforated structure. The amalgam body or the perforated structure is provided with a protective coating with a getter effect. The invention enables a simple production process to be implemented with low costs in terms of materials.