Substantially flat compact fluorescent lamp

Details Substantially flat compact fluorescent lamp Substantially flat compact fluorescent lamp

1994-08-17

1998-07-07

Patel, Ashok

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313577, 313610, 313634, 313635, H01J 1704, H01J 61067

Patent

active

057774315

ABSTRACT:
A substantially flat, gas filled, arc discharge fluorescent lamp having an internal path in which the arc travels, where the path is formed by vertical sections between a substantially flat top and bottom surface. The path length can be controlled along with the height of the lamp to provide a wide range of lumens per unit volume while improving lamp life at low cost. A reflective coating, formed adjacent to the phosphor coating within the path, directs light to where wanted, while obviating the need for a separate reflector in the lamp fixture. One application of the present inventive lamp is to replace incandescent lamps by virtue of being mechanically interchangeable by virtue of having the flexibility for accommodating a small ballast within the lamp assembly.

REFERENCES:
patent: 2405518 (1946-08-01), Polevitzky
patent: 2406146 (1946-08-01), Holmes
patent: 2501376 (1950-03-01), Breadner et al.
patent: 2555749 (1951-06-01), Krefft
patent: 3226590 (1965-12-01), Christy
patent: 3243630 (1966-03-01), Martyny
patent: 3247415 (1966-04-01), Martyny
patent: 3258630 (1966-06-01), Scott
patent: 3646383 (1972-02-01), Jones et al.
patent: 4839555 (1989-06-01), O'Mahoney
patent: 5041762 (1991-08-01), Hartai
patent: 5343116 (1994-08-01), Winsor

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