Under publication
ISO 20351
Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for optical properties of ceramic phosphors for white light-emitting diodes using an integrating sphere
Reference number
ISO 20351
Edition 2
2024-10
Under publication
ISO 20351
86861
Under publication (Edition 2, 2024)
Final production steps (up to seven weeks).
Will replace ISO 20351:2017

Abstract

This document describes test methods using an integrating sphere to measure the optical properties of ceramic phosphor powders, which are used in white light-emitting diodes (LEDs) and emit visible light when excited by UV or blue light. It specifies an absolute method to measure internal quantum efficiency and a substitution method to measure external quantum efficiency and absorptance. The substitution method uses reference materials whose external quantum efficiency and absorptance have been obtained in accordance with ISO 23946.

General information

  •  : Under development
     : 2024-10
    : International Standard under publication [60.00]
  •  : 2
  • ISO/TC 206
    81.060.30 
  • RSS updates

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