HID Lamp emission material

Details HID Lamp emission material HID Lamp emission material

1978-12-12

1980-07-01

Demeo, Palmer C.

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For plural electrodes of discharge device

313211, 313346R, H01J 114, H01J 61073

Patent

active

042108403

ABSTRACT:
An improved composite emission material for use in the electrodes of high intensity (HID) lamps comprising a reacted mixture of barium zirconate and strontium zirconate wherein the ratio of barium to strontium is from between 9:1 to 1:1 and is preferably 4:1. The improved emission material has a lower vapor pressure, higher melting point and a reduced processing time as compared to prior art emission materials.

REFERENCES:
patent: 2687489 (1954-08-01), Anderson, Jr. et al.
patent: 2806970 (1957-09-01), Meister et al.
patent: 3249788 (1966-05-01), Wainio et al.
patent: 3523915 (1970-08-01), Anthony et al.
patent: 3708710 (1973-01-01), Smyser et al.
patent: 4052634 (1977-10-01), De Kok
patent: 4123685 (1978-10-01), Bhalla
patent: 4152619 (1979-05-01), Bhalla

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