Dual lamp fixture with integral control

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 16/02 (2006.01) B60Q 1/26 (2006.01) B60Q 1/52 (2006.01)

Patent

CA 2250392

A dual lamp fixture (10) having an integral power supply and control circuit. The dual lamp fixture (10) utilizes stroboscopic and incandescent lamps (20, 22) mounted near the focus of a parabolic reflector (16) which may be actuated alternately, individually or simultaneously. Multiple lamps may be connected in parallel to a DC power bus (100) and a differential line, twisted-pair communication bus (42) to achieve a variety of controlled flashing patterns. Each lamp (20, 22) will perform its given tasks when an appropriate command signal is placed on the communication bus. To take full advantage of this distributed control and the advantages in bus-wiring topology, the power supply (100) is located in close proximity to its controller (43) and light fixture (10).

L'invention concerne un appareil d'éclairage à double lampe (10) munie d'un circuit intégré d'alimentation en énergie et de commande. L'appareil d'éclairage à double lampe (10) utilise des lampes stroboscopiques et des lampes à incandescence (20, 22) montées à proximité du foyer d'un réflecteur parabolique (16) qui peut être mis sous tension alternativement, séparément ou simultanément. Plusieurs lampes peuvent être connectées en parallèle à un bus d'alimentation (100) à courant continu et à un bus de communication (42) à paires torsadées et à ligne différentielle pour obtenir une variété de motifs clignotants selon l'ordre reçu. Chaque lampe (20, 22) se met en fonction lorsqu'un ordre approprié est lancé via le bus de communication. Pour tirer parti au mieux de cette commande distribuée et des avantages d'une topologie de connexion par bus, la source d'énergie (100) est située très près de sa commande (43) et de l'appareil d'éclairage (10).

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