Luminaire using incandescent lamp as luminous source

Details Luminaire using incandescent lamp as luminous source Luminaire using incandescent lamp as luminous source

1991-08-09

1994-08-30

Mis, David

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315219, 315291, 315307, H05B 3904

Patent

active

053431227

ABSTRACT:
Disclosed is a novel luminaire wherein a switching power supply circuitry is used to operate one or more incandescent lamps at a dc voltage exceeding their rating. The luminaire emits a flickerless light with a color temperature of about 2,900 K. or higher which is natural, closer to sunlight, superior in color rendering properties, gentle to the eyes, therefore very useful in illumination. The switching power supply circuitry exhibits a high power efficiency and capacity, and the output voltage is easily regulatable to a desired magnitude for lamp dimming.

REFERENCES:
patent: 4959755 (1990-09-01), Hochstein
patent: 5126636 (1992-06-01), Masaki
patent: 5214353 (1993-05-01), Nilssen

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