ISO 23946:2020

Current Revision
Fine ceramics (advanced ceramics, advanced technical ceramics) - Test methods for optical properties of ceramic phosphors for white light-emitting diodes using a gonio-spectrofluorometer

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ISO 23946:2020

Fine ceramics (advanced ceramics, advanced technical ceramics) - Test methods for optical properties of ceramic phosphors for white light-emitting diodes using a gonio-spectrofluorometer

PUBLISH DATE 2020
ISO 23946:2020

This document specifies a method for use of a gonio-spectrofluorometer to measure:

  • internal quantum efficiency,
  • external quantum efficiency,
  • absorptance,
  • luminescent radiance factor, and
  • relative fluorescence spectrum

of ceramic phosphor powders which are used in white light-emitting diodes (LEDs) and emit visible light when excited by UV or blue light.

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