Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Radiant energy control of an electric discharge device in...
Patent
1994-01-28
1995-10-03
Lee, Benny
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Radiant energy control of an electric discharge device in...
315159, 315151, 315157, 250239, 250214AL, 25022711, H05B 3700, G02B 600
Patent
active
054554888
ABSTRACT:
Miniature light-activated lamp control apparatus and the like, including a thin disk-shaped switching unit positionable within a light bulb socket and a thin light conductor having one end attached thereto, the light conductor being extendable through the gap between the electrically conductive inner wall of the socket and the electrically conductive outer surface of the bulb base disposed in the socket, and terminating at the opposite end in a lens for gathering ambient or other light. The switching unit has a first contact on one side for engagement with the socket center terminal, and a second contact on an opposing side for engagement with the center terminal of a light bulb. The unit includes a thin circuit board having control circuitry mounted thereon, such circuitry being positioned to occupy available space between the conical bulb base and the circuit board. Also mounted on the circuit board and in light communication with the light conductor is a photodetector electrically coupled to the control circuitry. The control circuitry receives operating power from the lamp through the first contact and is responsive to light communicated through the light conductor to turn the power to the second contact OFF and ON. The circuitry also has provision for gradually applying the power to the bulb (slow start) to extend bulb life, and has a hysteresis response to the incoming light intensity so as to eliminate turn-ON and turn-OFF flicker.
REFERENCES:
patent: 2123470 (1938-07-01), Lamb
patent: 3093744 (1963-06-01), Tabet
patent: 3421013 (1969-01-01), Angelari
patent: 3621269 (1971-11-01), Misencik
patent: 3900763 (1975-08-01), Turner
patent: 4023035 (1977-05-01), Rodriguez
patent: 4568826 (1986-02-01), Pitel et al.
patent: 4588926 (1986-05-01), Pezzolo
patent: 4907139 (1990-03-01), Quiogue
patent: 4988921 (1991-01-01), Ratner et al.
patent: 5235252 (1993-08-01), Blake
patent: 5272418 (1993-12-01), Howe et al.
Barton David M.
Buckley Edward M.
Hamrick Claude A. S.
Paul Christopher S.
Rhoades David P.
CMC Technologies, Inc.
Hamrick Claude A. S.
Kinkead Arnold
Lee Benny
LandOfFree
Miniature light-activated lamp control apparatus and the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Miniature light-activated lamp control apparatus and the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Miniature light-activated lamp control apparatus and the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1079421