Draft International Standard
ISO/DIS 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/DIS 20351
Edition 2
© ISO 2024
Draft
International Standard
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Under development
This Draft International Standard is in the enquiry phase with ISO members.
Will replace ISO 20351:2017

ISO/DIS 20351

Format
Language
CHF 63
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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

  • Status
     : Under development

    You can help develop this draft international standard by contacting your national member

    Stage
    : DIS ballot initiated: 12 weeks [40.20]
  • Edition
     : 2
    Number of pages
     : 14
  • Technical Committee :
    ISO/TC 206
    ICS :
    81.060.30 
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Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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