BS ISO 20351:2017
Superseded
View Superseded by
Fine ceramics (advanced ceramics, advanced technical ceramics). Absolute measurement of internal quantum efficiency of phosphors for white light emitting diodes using an integrating sphere
Hardcopy , PDF
English
09-19-2017
10-18-2024
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Measuring equipment
5 Calibration, checking and maintenance of measuring
equipment
6 Samples
7 Measurement methods
8 Calculations
9 Report
Bibliography
Describes 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).
| Committee |
RPI/13
|
| DevelopmentNote |
Supersedes 17/30337328 DC. (10/2017)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This document 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).
This document can be adopted for the measurement of phosphors used in non-white LEDs, for example, green, orange, pink or purple LEDs.
| Standards | Relationship |
| ISO 20351:2017 | Identical |
| IEC 62607-3-1:2014 | Nanomanufacturing - Key control characteristics - Part 3-1: Luminescent nanomaterials - Quantum efficiency |
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