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ISO 20351:2024-ed.2.0
Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for optical properties of ceramic phosphors for white light-emitting diodes using an integrating sphere
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STANDARD published on 16.10.2024
The information about the standard:
Designation standards: ISO 20351:2024-ed.2.0
Publication date standards: 16.10.2024
SKU: NS-1203770
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 20351:2024-ed.2.0 :
Description / Abstract: This document specifies test methods for the use of 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. This document 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.
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