Traffic signalling apparatus for self-illuminating displays
AssigneeSiemens Aktiengesellschaft
InventorsUlrich Hahn, Manfred Fillinger, Georg Meng, Stefan Beringer, Richard Wurzenberger
Life of this patent
Estimating the term…
Abstract
A traffic signalling apparatus wherein LEDs are employed to present various displays and the LEDs are secured with their sidewalls in a tubular holding device such that a good heat discharge from the LEDs to the holding device is guaranteed. The holding device is securely fixated in a front plate of the signalling apparatus, preferably detachably. An optical imaging device is additionally provided in order to achieve an emission characteristic which is optimized for traffic participants.
Claims8
A traffic signalling apparatus for self-illuminating displays, comprising:
- a plurality of LEDs from which the self-illuminating displays are at least partially composed;
- a front plate on a front of the apparatus, the front plate including a plurality of boreholes;
- a plurality of separate tubular holding devices formed of a material have a thermal conductivity which is on an order of magnitude of a thermal conductivity of a metal, each holding device respectively secured in one of the plurality of boreholes, each holding device further having one of the LEDs respectively arranged and fixed therein wherein lateral surfaces of the respective LED are surrounded by the holding device such that light emitted by each LED exits through a first aperture of the holding device and the LED is electrically connected through a second aperture of the holding device;
- and
- a control device which actuates the LEDs and to which the LEDs are electrically connected.
Dependencies are inferred from the claim text.