Preheating device of illuminating unit for vehicle

Details Preheating device of illuminating unit for vehicle Preheating device of illuminating unit for vehicle

1996-07-17

1999-03-09

Paschall, Mark H.

Electric heating

Heating devices

Combined with diverse-type art device

362 94, 315 84, B60L 102, F21V 3300, B60Q 700

Patent

active

058804315

ABSTRACT:
A preheating device for an illuminating unit comprises a cold cathode fluorescent tube, a heater for heating the cold cathode fluorescent tube at the time of low temperature and ensuring the brightness, a temperature sensor, a door-unlocking detector, and a CPU controlling the heater. When a driver of a vehicle unlocks a door of a vehicle with a key to get it in, the door-unlocking detector detects unlocking of the door and sends the detected signal to the CPU. The CPU starts electric supply to the heater to preheat the cold cathode fluorescent tube when a detected signal of the unlocking of the door is input by the door-unlocking detector and a cold temperature signal is input by the temperature sensor.

REFERENCES:
patent: 2953009 (1960-09-01), Sharpe
patent: 4123668 (1978-10-01), Pecota
patent: 4475067 (1984-10-01), Rowe
patent: 4872095 (1989-10-01), Dubak et al.
patent: 5047388 (1991-09-01), Alten
patent: 5079681 (1992-01-01), Baba et al.
patent: 5189340 (1993-02-01), Ikeda
patent: 5408162 (1995-04-01), Williams
patent: 5568018 (1996-10-01), Muzic
US Patent Application No. 08/552,575.

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