LED lamp

Details LED lamp LED lamp

2005-01-11

2005-01-11

Wong, Don (Department: 2821)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C315S169100, C313S499000

Reexamination Certificate

active

06841931

ABSTRACT:
In an LED lamp, a Zener diode is mounted on a copper plate, and a GaN-based light-emitting element is mounted on the Zener diode with an electrode of the element being oriented facedown. Two Zener diodes close to the center of the LED lamp are mounted on a common copper plate, thereby interconnecting the two light-emitting elements in series. Consequently, a Zener diode is connected to the respective two Zener diodes by means of a wire serving as a conductive member. Four light-emitting elements are connected in series, so that four light-emitting elements are connected in series, thus completing a circuit configuration. In this way, use of the Zener diodes for interconnection purpose enables a reduction in the number of minimum required wires. It is better to connect the wire to the upper surfaces of the Zener diodes, thereby obviating a necessity for a redundant wire space and enabling miniaturization of the LED lamp.

REFERENCES:
patent: 3875473 (1975-04-01), Lebailly
patent: 6121637 (2000-09-01), Isokawa et al.
patent: 6445011 (2002-09-01), Hirano et al.
patent: 6519394 (2003-02-01), Kondo et al.
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German Office Action dated Feb. 12, 2003 with English Translation.

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