Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Patent
1988-06-29
1991-05-07
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Silicon controlled rectifier ignition
315200A, 362806, 362800, 362183, H05B 4136
Patent
active
050139720
ABSTRACT:
An eternal symbolic/religious memorial light having a flickering-candle appearance generated electronically by at least a pair of lamps and operated by a rechargeable battery charged/recharged by a solar cell unit, or by the solar cell unit itself. In an alternative embodiment, a light-dependent resistor (LDR) is incorporated to automatically adjust the current to the lamps in accordance with the background lighting conditions. Thus, the flickering appearance is made brighter during daylight when this is required in order to see the candle, and at nightfall, the brightness is diminished as the candle is more easily visible. In another alternative embodiment, the solar cells continuously run a user-programmed calendar/timer to turn on the lamp units only on specified memorial/anniversity days.
REFERENCES:
patent: 2916670 (1959-12-01), Pederson
patent: 3986144 (1976-10-01), Russo
patent: 4314198 (1982-02-01), Rogers
patent: 4384317 (1983-05-01), Stackpole
patent: 4626852 (1986-12-01), Dodge
Apel Israel
Malkieli Moshe
Langer Edward
LaRoche Eugene R.
Neyzari Ali
Samuel Kaner
Shipkovitz Samuel
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