Claims
- 1. A lighting device adapted to be powered by a source of electrical power supplied to an electrical socket, the lighting device comprising:
- (a) a mounting base for mating engagement with the socket, said mounting base having a first electrical terminal and a second electrical terminal;
- (b) a light transmissible hollow bulb mounted on said mounting base, said mounting base and said bulb cooperating to form an enclosure; and
- (c) a lighting circuit positioned within said enclosure and electrically connected between said first and second electrical terminals, said lighting circuit comprising a first plurality of series connected light emitting diodes connected in parallel with a second plurality of series connected light emitting diodes;
- (d) wherein all of said light emitting diodes in said first plurality of series connected light emitting diodes are electrically connected in opposite polarity of all of said light emitting diodes in said second plurality of series connected light emitting diodes;
- (e) wherein said light emitting diodes are mounted on at least one side of a printed circuit board; and
- (f) wherein said light emitting diodes are die-on type light emitting diodes.
- 2. A lighting device according to claim 1, wherein said lighting circuit includes circuit means electrically connected in series with said first and second plurality of series connected light emitting diodes, said circuit means limiting current flow and surge currents through said light emitting diodes.
- 3. A lighting device according to claim 2, wherein said circuit means includes a capacitor, electrically connected in series with said first and second plurality of series connected light emitting diodes, to limit current flow through said light emitting diodes.
- 4. A lighting device according to claim 3, wherein said circuit means includes a resistor, electrically connected in series with said capacitor, said resistor limiting surge currents through said light emitting diodes.
- 5. A lighting device according to claim 2, wherein said lighting circuit includes a surge suppression device electrically connected between said first electrical terminal and said second electrical terminal in parallel with said first and second plurality of series connected light emitting diodes and said circuit means, said surge suppression device protecting said light emitting diodes against transient voltage spikes in the source of electrical power.
- 6. A lighting device according to claim 5, wherein said surge suppression device is a TRANSZORB.
- 7. A lighting circuit according to claim 5, wherein said circuit means and said surge suppression device are positioned adjacent to said mounting base.
- 8. A lighting device according to claim 2, wherein said circuit means are mounted adjacent to said mounting base.
Parent Case Info
This is a continuation-in-part application of application Ser. No. 08/281,414 filed on Jul. 27, 1994, now U.S. Pat. No. 5,526,236, and a continuation-in-part application of application Ser. No. 08/160,583, filed on Dec. 1, 1993, now U.S. Pat. No. 5,410,453.
US Referenced Citations (15)
Foreign Referenced Citations (1)
Number |
Date |
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4321823 |
Jan 1995 |
DEX |
Non-Patent Literature Citations (4)
Entry |
Product brochure for Merlin Exit Retrofit Kit, Lithonia Lighting Emergency Lighting Systems, One Lithonia Way, Decatur, GA, 30035, Dated Nov. 1994. |
Advertisement for Exit Sign Retrofit Kit, New Equipment Digest, 1100 Superior Avenue, Cleveland, OH, Mar., 1995. |
Product brochure for Watt-Man.TM. Led Exit Retrofit Lamp, Standard Enterprises Inc., 12958 Harbor Drive, Suite 100, Lake Ridge, VA 22192 .COPYRGT.1995. |
Product brochure for Watt-Man.TM. Led Exit Retrofit Lamp, Printed in USA. |
Related Publications (1)
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Date |
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160583 |
Dec 1993 |
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Continuation in Parts (1)
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Number |
Date |
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281414 |
Jul 1994 |
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