Traditional testing systems for white light LEDs involve irradiating the phosphor with the LED for a long period. But the effects of aging on the LED itself can skew phosphor measurement. CSA Group developed our total fluorescence efficiency test specifically for the characterization of phosphor lens materials – completely independent of an LED. It’s the only testing protocol of its kind. With this unique dual-integrating sphere system, we test opaque, semi-transparent, or transparent sample LED phosphor materials for:

• Spectral reflectivity
• Spectral transmissivity
• Spectral absorbance
• Spectral fluorescence (forward, backward)
• Donaldson radiance factor (reflected, transmitted)
• Optical throughput (normalized)

High-Irradiance Stress Testing is useful to manufacturers of SSL lighting components, including plastic lensing, phosphors, automotive, adhesives, and reflectors. CSA Group’s protocol utilizes our Elevated Temperature Irradiance Chamber (ETIC) to evaluate the deterioration of plastic samples and phosphors exposed to blue light irradiance and elevated temperatures. You can also request alternate wavelengths for custom test conditions. We stress the samples to a maximum common irradiance across the chamber of approximately 150,000 W/m2 and can set the test at 100-hour increments.

We offer an array of testing and measurement services to ensure your LED products are of the highest quality and ready for market entry in the most efficient time frame possible.

• Photometric and Lumen Maintenance Testing – LM 79 and LM 80 Luminaire Testing
• LED Horticultural Lamp Testing
• CEC Title 24 Joint Appendix 8 (JA8)
• Eye Safety (ANSI/IESNA RP-27)
• Unified Glare Rating
• Flat Panel Display Testing
• High-Irradiance Stress Testing
• ETΦ LED Characterization (Electrical-Thermal-Optical)
• Angular Distribution Characterization