2010年9月23日星期四

LED Technology and Products Design Seminar

The seminar entitled “Cutting Edge LED Technology and Products Design” was organized by Hong Kong Science and Technology Parks (HKSTP) and supported by Hong Kong Productivity Council (HKPC) and Hong Kong Solid State Lighting Industry Consortium (HKSSLIC) on 17 September 2010.

The first speaker was Mr. Percy Lam (Vice President, APT Electronics Ltd.) and his topic named “High Brightness LED Chip and Module Lighting Source Technology for Solid State Lighting”. APT Electronics Ltd. (广州南沙区成立晶科电子(广州)有限公司) established their LED production line in Guangzhou since 2006.

A LED device was shown as follow.




The second speaker was Mr. David Ng (Design Manager of IC Design Group, ASTRI) and his topic was “LED Driver Technology”.


Mr. Ng introduced the LED Driver Design and their AC-DC Controller for LED Lighting.


LED Driver Advantages were discussed below:
1) Total Components count is just a few
2) Save Spaces, can adapt to size limited LED lighting
3) Isolated solution, provides safety solution

The final speaker was Mr. Sun Tam (Director of R&D Dept., Optiled Lighting International Ltd.) and his topic entitled “Essences of Quality LED Lighting Products and the Applications”


Mr. Tam compared the traditional lighting and LED lighting. It was found LED lighting was more efficiency and more focus light effect.


Then the features of LED lamps were described. It included LED light source, Heat Sink, Power Supply Unit, Diffuser and Casing.


LED light source


Heat Sink


Power Supply Unit


Diffuser


Casing


Mr. Tam mentioned the product quality and safety below:
1) Workmanship, QC process (Robustness)
2) Thermal Management (LED life)
3) Circuitry (Safety and Reliability)
4) Certification and Specification (Safety and Function Guarantee)
5) Production (Life Tests)

Mr. Tam remarked “In Hong Kong Law it is permissible for the product manufacturer to self declare compliance with safety requirements. Justification is to be produced only when required by EMSD.” Therefore, responsible manufacturers would only state CE or any other safety compliance after having their products formally tested by a recognized laboratory.
Finally, some applications of LEDs were shown.

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