EP 0052124 A1 19820526 - LIGHT SENSITIVE SWITCH FOR A CAR.
Title (en)
LIGHT SENSITIVE SWITCH FOR A CAR.
Title (de)
LICHTEMPFINDLICHES SCHALTGERÄT FÜR FAHRZEUGE.
Title (fr)
COMMUTATEUR POUR VOITURE, SENSIBLE A LA LUMIERE.
Publication
Application
Priority
CH 387080 A 19800519
Abstract (en)
[origin: WO8103307A1] The switch is controlled by a photo sensitive device (20) which senses through a diffuser (21) light coming from the inside of the car. When the intensity exceeds a threshold adjustable by a trimmer, the photo sensitive device switches, through an operational of amplifier (30) and two transistors (32, 33), a relay (35) with two working contacts to supply two lighting circuits (11, 12) of the vehicle. A capacitor connected between the mass and the base of one of the transistors (32) delays the opening and the closing of that transistor and at the same time the switching on and the switching off of the lighting circuit. This delay takes two different values, the most important one being for the switching off.
Abstract (fr)
Le commutateur est commande par un dispositif photosensible (20) qui capte a travers un diffuseur (21) de la lumiere provenant de l'interieur de la voiture. Lorsque l'intensite depasse un seuil reglable par un trimmer, le dispositif photosensible commute, a travers un amplificateur operationnel (30) et deux transistors (32, 33), un relai (35) avec deux contacts de travail pour alimenter deux circuits d'eclairage (11, 12) du vehicule. Un condensateur branche entre la masse et la base d'un des transistors (32) retarde l'ouverture et la fermeture de ce transistor et en meme temps l'enclenchement et le declenchement du circuit d'eclairage. Ce retard prend deux valeurs distinctes, celle pour le declenchement etant la plus importante.
IPC 1-7
IPC 8 full level
B60Q 1/14 (2006.01)
CPC (source: EP)
B60Q 1/1423 (2013.01); B60Q 2300/052 (2013.01); B60Q 2300/314 (2013.01)
Designated contracting state (EPC)
DE FR GB NL SE
DOCDB simple family (publication)
WO 8103307 A1 19811126; CH 628296 A5 19820226; EP 0052124 A1 19820526
DOCDB simple family (application)
CH 8100058 W 19810519; CH 387080 A 19800519; EP 81901316 A 19810519