Igniting device for a high-pressure discharge lamp capable of ba

Details Igniting device for a high-pressure discharge lamp capable of ba Igniting device for a high-pressure discharge lamp capable of ba

1988-02-19

1990-02-06

Yusko, Donald J.

Electric lamp and discharge devices: systems

With load device temperature modifier

Electric heater for the load device

315115, 315117, 315 82, 307 10LS, H01K 162, H01J 1734

Patent

active

048990850

ABSTRACT:
In an operating apparatus of a high-pressure discharge lamp of the invention, power is supplied to a heater provided in a high-pressure discharge lamp from a battery. The battery is charged by a charger which is driven by a power section. The power section is started by an ON operation of a switch which is turned on/off synchronously with the operation of a control switch. The control switch allows power supply from the battery to the heater when it is turned on. Therefore, always while power is supplied to the heater, the battery is being charged by the charger so that the voltage of the battery will not be lowered.

REFERENCES:
patent: 1676793 (1924-02-01), Mailey
patent: 1788909 (1925-07-01), Buttolph
patent: 2329584 (1941-01-01), Bourne
patent: 4057750 (1977-08-01), Elms et al.
patent: 4101807 (1978-07-01), Hill
patent: 4417180 (1983-11-01), Chamran et al.
patent: 4459513 (1984-07-01), Frey et al.
patent: 4645974 (1987-02-01), Asai

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