Mercury vapor releasing getter tape useful in the manufacture of

Details Mercury vapor releasing getter tape useful in the manufacture of Mercury vapor releasing getter tape useful in the manufacture of

1989-07-05

1991-02-05

Wieder, Kenneth

Electric lamp and discharge devices

With frangible capsule containing getter, gas or vapor...

313556, 313558, 313562, 313565, H01J 710, H01J 718, H01J 720

Patent

active

049908286

ABSTRACT:
There is provided a metallic tape supporting a mercury vapor releasing material, preferably Ti.sub.3 Hg, admixed with a non-evaporable getter metal, preferably an alloy of 84% Zr--15% Al, contained within a continuous series of depressions within the tape. The depressions form a successive series of pairs of depressions preferably each having an oval shape. Each pair of oval shaped depressions is separated by a distance greater than the distance separating the individual oval shapes. The tape can then be cut between each pair of depressions to form a small strip containing two depressions. Such a small strip can then be folded through an angle of approximately 180.degree. about an axis, in the plane of the tape midway between the depressions, perpendicular to the tape length. This folded strip can then be welded to a support and used as a cold cathode electrode in a miniature fluorescent lamp. The cathode can be heated during a manufacturing process to release mercury and subsequently act as a cold cathode and getter device.

REFERENCES:
patent: 4107565 (1978-08-01), Isojima et al.

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