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US 2002/0171911 A1Published application
Method for adjusting the hue of the light emitted by a light-emitting diode
OwnerMamoru Maegawainventor
Life of this patent
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Abstract
In a light-emitting diode, a phosphor layer 6 containing a phosphor is laid on top of translucent sealing resin 8 having a light-emitting diode element 3 sealed in it, and then, by shaving the phosphor layer 6, the hue of the light emitted by the light-emitting diode is adjusted. This makes it possible to adjust the hue of the light emitted by individual light-emitting diodes to obtain a uniform hue. For quick and easy adjustment of the hue, the phosphor layer 6 is shaved preferably by laser beam machining.
Claims5
A method for adjusting a hue of light emitted by a light-emitting diode, comprising the steps of:
- laying a phosphor layer containing a phosphor on top of a translucent sealing resin having a light-emitting diode element sealed therein;
- and
- adjusting a hue of emitted light by shaving the phosphor layer.
Dependencies are inferred from the claim text.