Abstract: An optical device usable as a headlight of a motor vehicle has an optical system in the form of a lens and/or a light source which is surrounded by a housing and which is covered by a translucent, in particular transparent, cover which is connected to the housing. To increase the functionality of the optical device, a PTC heating assembly is configured to heat a space between the housing and the cover. The PTC heating assembly includes at least one PTC element and strip conductors that are connected electrically to the PTC element.

Abstract: A lighting device for a vehicle, having a housing, at least one light module for producing a light function, a supporting frame that is arranged in the housing so as to be pivotable. The at least one light module is mounted in the supporting frame such that it is pivoted upon a pivoting of the supporting frame. An adjuster is designed to pivot the supporting frame about a vertical axis. The adjuster being connected to the supporting frame in a first engagement region and in a second engagement region that is arranged horizontally on the opposite side of the supporting frame. The adjuster moving the supporting frame in a first horizontal direction in the first engagement region and to simultaneously move it in a second horizontal direction, which is opposite to the first direction, in the second engagement region.

Abstract: A fan system includes a fan mount having a main body with at least two bayonet guides, and a fan having at least two bayonet elements configured to be coupled to the bayonet guides to form a bayonet joint. Each of the bayonet guides include a bayonet arm fastened to and extending spaced apart from the main body. The fan is coupled to the fan mount by moving towards the main body in an axial direction, then rotating it such that the bayonet elements engage the bayonet guides, with each of the bayonet arms securing a corresponding bayonet element against the main body. The fan system is used in a vehicle headlight.

Abstract: A portable radio terminal apparatus for transmitting and receiving signals in different frequency ranges which has an apparatus for switching the radio terminal apparatus over into a respective frequency range, an antenna and a first antenna matching circuit arrangement for matching the radio terminal apparatus to a first frequency range. The antenna arrangement includes only one antenna whereby at least a second antenna matching circuit arrangement is provided which, given a switching over of the radio terminal apparatus from the first frequency range into a second frequency range, can be connected to the first antenna matching circuit arrangement.

Abstract: An antenna device is provided that is particularly suitable for mobile radio telephone device. The antenna device has a first helix antenna, a helix antenna connectible to the first helix antenna as well as an extensible rod antenna. In the extended condition of the rod antenna, a connector element connects only the rod antenna to the first helix antenna. In the retracted condition of the rod antenna, the connector element connects only the second helix antenna to the first helix antenna. An antenna device having a low space requirement is thus created. It is simultaneously assured that, regardless of the retracted or extended condition of the rod antenna, an antenna device that is matched to the optimum transmission/reception power is always formed by a combination of two antennas.