IP Library › Granted Patent US 7,026,661
Granted Patent B2
US 7,026,661 · App. 10/677,229 · Granted Apr 11, 2006

Light emitting device and manufacturing method thereof

Assignee: Citizen Electronics Co., Ltd.
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Quick Facts
Patent No.
US 7,026,661
App. No.
10/677,229
Granted
Apr 11, 2006
Kind
B2
Abstract

A light emitting device has a substrate, an LED mounted on the substrate. A first transparent layer seals the LED, and a second transparent layer is provided around the first transparent layer. Particles of fluorescent material are included in the second transparent layer. A reflector layer is formed on outside walls except an upper side.

Claims (9)

1. A light emitting device comprising:

a substrate having a flat upper surface;

an LED mounted on the upper surface of the substrate;

a first transparent layer mounted on the substrate for sealing the LED;

a second transparent layer having an underside surface coextensive with the upper surface of the substrate and mounted on the upper surface of the substrate so as to surround the first transparent layer;

fluorescent material being included in the second transparent layer;

particles of coloring agent included in the second transparent layer; and

a reflector layer formed on peripheral outside walls of the second transparent layer except an upper side thereof.

2. The light emitting device according to claim 1 wherein the second transparent layer has an inverted trapezoid shape in section.

Priority Claims (1)
JP 2001-176355 · Jun 11, 2001 · national
Continuity (2)
Division 1016455700 · Jun 10, 2002
Related Publication 20040069993A1 · Apr 15, 2004