Plural leds mounted within a central cutout of a surrounding circular reflective electrode

A light emitting device comprising:

• a first patterned electrode and a plurality of second patterned electrodes, the first and second patterned electrodes being made of a metal film and provided on an obverse surface of a wiring board;
• LED chips each mounted on a respective one of the second patterned electrodes;
• metal wires each electrically connecting a respective one of the LED chips and the first patterned electrode;
• and a lens member made of a transparent synthetic resin and provided on the obverse surface of the wiring board for packaging the LED chips and the metal wires;
• wherein the first patterned electrode is circular and has a central cutout, the second patterned electrodes are arranged in the cutout while being equally spaced from each other along a circumference of a circle which is generally concentric with the circle of the first patterned electrode, and wherein the metal wires electrically connecting the LED chips mounted on the second patterned electrodes to the first patterned electrode extend radially outward.

A method of making a light emitting device, comprising the steps of:

• forming, on a wiring board, a first patterned electrode of a metal film into a circular configuration while forming a cutout at a center of the first patterned electrode;
• forming a second patterned electrode of a metal film in the cutout;
• mounting an LED chip on the second patterned electrode;
• electrically connecting the LED chip and the first patterned electrode to each other via a metal wire;
• and forming a lens member by dropping transparent synthetic resin in a liquid state onto the first patterned electrode so that the transparent synthetic resin bulges to cover the LED chip and the metal wire and then hardening the synthetic resin.