Division 2 Activity Report - CIE Australia
Division 2 Activity Report - CIE Australia
Division 2 Activity Report - CIE Australia
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Attachment 6<br />
TC2-63 meeting report –June 3, 2009<br />
Optical Measurement of High-Power LEDs<br />
1. First meeting on June 1, 2009. 20 members, 42 attendees<br />
2. Thing discussed<br />
3. Introduction: method, - updates in the new LEDs & instruments.<br />
4. Status in the development of national and international standards<br />
5. IES, JEDEC JC-15, TAIWAN, CHINA, BELGIUM.<br />
6. 2012 TC timeline?<br />
7. Discussions<br />
1) Scope<br />
o measurement of all photometry, colorimetry, and radiometry quantities?<br />
o includes pulse method?<br />
o for extremely high-power LEDs or arrays (e.g. 100 W)<br />
o relationship to TC 2-64 (mainly in thermal and electrical measurement<br />
conditions)?<br />
o relationship to the <strong>CIE</strong>127-2007 (mainly in optical measurement in stable<br />
CW conditions)?<br />
o covers the LED arrays? relationship to the <strong>CIE</strong> committees TC2-50<br />
(Measurement of the optical properties of LED clusters and arrays)?<br />
o includes AC-driven LEDs or start a new committee?<br />
2) Preferred method for determining the Vf<br />
3) Defining ambient temperature conditions?<br />
4) Define an LED Tj for the measurement?<br />
5) Dealing with the aging of the LED Vf<br />
- 42 -
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