ISO 20351:2017

Fine ceramics (advanced ceramics, advanced technical ceramics) — Absolute measurement of internal quantum efficiency of phosphors for white light emitting diodes using an integrating sphere

Publication date: Sep 8, 2017

General information

Current stage: 90.92 Effective date: Aug 10, 2023

Originator: ISO

Owner: ISO/TC 206

Type: International Standard

ICS: 81.060.30

Languages: English

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Status: Published

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Scope

ISO 20351:2017 specifies a method of absolute measurement (using an integrating sphere) of internal quantum efficiency of phosphor powders which are excited by UV or blue light and emit visible light, and which are used for white light-emitting diodes (LEDs).
ISO 20351:2017 can be adopted for the measurement of phosphors used in non-white LEDs, for example, green, orange, pink or purple LEDs.

Life cycle

NOW

PUBLISHED
ISO 20351:2017
90.92 Standard to be revised
Aug 10, 2023

REVISED BY

IN_DEVELOPMENT
ISO/PRF 20351

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