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US 2004/0069993 A1Published application
Light emitting device and manufacturing method thereof
AssigneeCitizen Electronics Co., Ltd.
InventorYoshio Murano
Life of this patent
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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.
Claims9
A light emitting device comprising:
- a substrate;
- an LED mounted on the substrate;
- a first transparent layer sealing the LED;
- a second transparent layer provided around the first transparent layer;
- fluorescent material being included in either of the first transparent layer and the second transparent layer;
- and
- a reflector layer formed on outside walls except an upper side.
4 more elements
A method for manufacturing a light emitting device, comprising the steps of:
- preparing a substrate aggregation having a plurality of substrate divisions;
- mounting an LED on the substrate division;
- forming a first transparent layer on the substrate aggregation;
- cutting off the first transparent layer at division lines surrounding the substrate division to form an individual first transparent layer;
- forming a second transparent layer on the individual first transparent layer;
- cutting off the second transparent layer at division lines surrounding the substrate division to form an individual second transparent layer;
- forming a reflector film on outside walls of the individual second transparent layer;
- and
- dividing the substrate division at division lines of the division.
6 more elements
Dependencies are inferred from the claim text.