Mercury lamp for promoting plant growth

Details Mercury lamp for promoting plant growth Mercury lamp for promoting plant growth

1978-03-13

1980-07-01

Ansher, Harold

Electric lamp and discharge devices

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

For plural electrodes of discharge device

313346R, 427 66, 427 67, 427 77, 427111, 4271263, 428472, 428539, 428917, H01J 1708, H01J 114, H01J 130

Patent

active

042108390

ABSTRACT:
There is disclosed a mercury lamp which has been found to markedly increase plant growth. The electrodes in a conventional mercury lamp are coated with an "emission material" for extending lamp life and to facilitate starting. In accordance with the invention, the mineral scheelite is added to the emission material, and some additional changes are made in the other constituents.

REFERENCES:
patent: 1667471 (1928-04-01), Friedrich
patent: 2232780 (1941-02-01), Foulke
patent: 2312229 (1943-02-01), Anderson
patent: 2403033 (1946-07-01), Stutsman
patent: 2548514 (1951-04-01), Bramley
patent: 2724070 (1955-11-01), Heine et al.
patent: 2740914 (1956-04-01), Bowtell et al.
patent: 2757308 (1956-07-01), Katzberg
patent: 4136227 (1979-01-01), Saito et al.

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