Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
IES LM 80 2020

IES LM 80 2020

$27.08

IES LM-80-20 Approved Method: Measuring Luminous Flux and Color Maintenance of LED Packages, Arrays, and Modules

Published By Publication Date Number of Pages
IES 2020 41
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This Approved Method provides the methods for measurement of luminous flux and color maintenance for LED packages, arrays, and modules. It covers luminous, radiant, or photon flux maintenance and color maintenance, including changes in chromaticity coordinates, peak wavelength, or centroid wavelength versus time. The maintenance characteristics are measured under controlled conditions that allow direct comparison of results obtained at different laboratories. This Approved Method does not provide guidance or make any recommendations regarding predictive estimations or extrapolation for the maintenance characteristics beyond the duration of the actual measurements.

PDF Catalog

PDF Pages PDF Title
1 Cover
4 Copyright
6 IES Testing Procedures Committee.
7 CONTENTS
11 1.0 Introduction and Scope
1.1 Introduction
1.2 Scope
2.0 Normative References
2.1 ANSI/IES RP-16-17
2.2 ASTM Standard E230/E23M-112
3.0 Definitions
3.1 air temperature (TA
3.2 case temperature (Ts
3.3 centroid wavelength (.c
3.4 device under test (DUT
12 3.5 dominant wavelength (.d
3.6 drive level
3.7 DUT failure
3.8 luminous flux maintenance
3.9 maintenance test
3.10 measurement interval
3.11 peak wavelength (.p
3.12 photon flux (..c
3.13 photon flux maintenance
3.14 radiant flux (..e
3.15 radiant flux maintenance
4.0 Physical and Environmental Conditions
4.1 General
4.2 Humidity
13 4.3 Air Temperature
4.4 Air Movement
4.5 Temperature Measurement Equipment or System
5.0 Electrical Conditions
5.1 DUT Drivers
5.2 Drive Level Value
5.3 DC Constant Current Drive
5.3.1 Circuit Arrangement
5.3.2 Current Regulation
5.4 Pulse Width Modulated (PWM) Current Drive
5.4.1 Circuit Arrangement
5.4.2 Current Regulation
14 5.5 DC Constant Voltage Drive
5.5.1 Circuit Arrangement
5.5.2 DC Voltage Regulation
5.6 AC Regulated Voltage Drive
5.6.1 Circuit Arrangement
5.6.2 AC Regulation
6.0 Photometric and Electrical Measurement Procedures
6.1 DUT Photometric and Electrical Measurements
6.2 DUT Measurement Temperature Condition
15 6.3 DUT Measurement Drive Level
7.0 Maintenance Test Procedures
7.1 Seasoning or Aging
7.2 DUT Tracking
7.3 Timekeeping
7.4 DUT Case Temperatures
7.5 Maintenance Test Duration and Measurement Interval
16 7.6 Recording DUT Failures
8.0 Test Report
9.0 Additional Reading
17 Annex A – DUT Sample Selection (Informative
Annex B – Monitoring of Case Temperatures (Normative
19 Informative References

Related products

IES LM 80 2020
$27.08