Photometry Of White Light Emitting Diode For General Lighting - Part 3: Measurement Methods For Lumen Maintenance
Japanese Standards Association
1 Scope
2 Normative references
3 Terms and definitions
4 Sample
5 Lifetime lighting test
6 Lumen maintenance factor test
7 Uncertainty of measurement
8 Report of test results
Annex A (normative) - Measuring method of temperature
of LED
Annex B (informative) - Estimation (extrapolation) methods
of lumen maintenance factor
Bibliography
Defines the measurement methods for the lumen maintenance factor and the chromaticity change of a white light emitting diode (LED) for general lighting.
| Document Type | Standard |
| Status | Current |
| Publisher | Japanese Standards Association |
