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Method and apparatus for manufacturing a light-emitting device including correction of an application amount of a fluorescent resin based on a fluorescent particle concentration

  • US 9,241,388 B2
  • Filed: 05/11/2012
  • Issued: 01/19/2016
  • Est. Priority Date: 06/29/2011
  • Status: Active Grant
First Claim
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1. An apparatus for manufacturing a light-emitting device by applying, onto a light-emitting source, a fluorescent resin which includes fluorescent particles and is stored in and discharged from an applicator, the apparatus comprising:

  • a controller programmed to control an application amount of the fluorescent resin that is discharged from the applicator;

    a fluorescent particle measurer configured to measure a first concentration that is a number concentration of the fluorescent particles included in the fluorescent resin discharged from the applicator by counting the fluorescent particles included in the fluorescent resin discharged from the applicator;

    a storage in which reference data is stored beforehand, the reference data indicating a relationship between a number concentration of the fluorescent particles and an application amount of the fluorescent resin that enables the light-emitting device to have constant chromaticity; and

    a corrector which determines, based on the first concentration and the reference data, a corrected application amount of the fluorescent resin to be applied onto the light-emitting source and notifies the controller of the corrected application amount.

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