Apparatus and method for coating a light source to provide a modified output spectrum
OwnerBee Yin Janet Chua, Boon Chun Tan +1inventors
InventorsBee Yin Janet Chua, Boon Chun Tan, Chan Meng Leong
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Abstract
The present invention provides a method and apparatus for coating a light source to provide a modified output spectrum. Liquid adhesive is applied to the light source to form an adhesive layer. Luminescent material is fluidized and at least a portion of the adhesive layer immersed in the fluidized luminescent material to form a coated light source. The luminescent material can be a mixture of a phosphor compound and a fluidization enhancement substance, such as fumed silica.
Claims25
A method for coating a light source, the method comprising:
- applying liquid adhesive to the light source to form an adhesive layer;
- fluidizing luminescent material;
- and
- immersing at least a portion of the adhesive layer in the fluidized luminescent material.
A method for making a lighting device, the method comprising:
- providing a light emitting device;
- spraying liquid adhesive on the light emitting device to form an adhesive layer;
- fluidizing a mixture of a phosphor compound and fumed silica;
- and
- immersing at least a portion of the adhesive layer in the fluidized mixture of the phosphor compound and the fumed silica.
An apparatus for coating a light source, the apparatus comprising:
- means for applying liquid adhesive to the light source to form an adhesive layer;
- and
- means for fluidizing luminescent material, the luminescent material fluidizing means adapted to receive at least a portion of the adhesive layer.
Dependencies are inferred from the claim text.