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SMTnet Express, June 18, 2015, Subscribers: 22,900, Members: Companies: 14,414, Users: 38,382

Technical Library

The Use of an Available Color Sensor for Burn-In of LED Products

Tom Melly Ph.D.; Feasa Enterprises Ltd.

In the recent past, the Light Emitting Diode (LED) was hailed as the new energy efficient light source that would never have to be replaced. There were claims of 50,000+ hrs lifetime for the humble LED. That story has changed over the last few years as the number and diversity of the LED based products has increased. This is not to say that the original evidence was incorrect, but the initial enthusiastic estimates from the labs did not match the ultimate test, customers. As a result of poor quality products affecting the overall opinion of LED based products, it is critical that manufacturers can be confident in the quality of their product. In current times we want to have products certified, checked and ensure that we have the best quality.

For the purposes of this paper we will look at one aspect of LED product, and this is the Lumen maintenance and estimated lifetime. The method described here does not seek to replace using high quality rating labs, but hopefully will allow the manufacturer to know with confidence that their prototype product, upon going to certification labs will be of a high enough quality that no expensive re-designs are required.

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Low & High Temperature Intrusive Reflow - Getting the Best Yields

Online Webinar | July 15 | ASKbobwillis.com

2015 PCB Cleaning Webinar Series

Online Webinar | ZESTRON

Technology Days 2015

Seminar/Course, Conference | June 17 - 18 | Nordson ASYMTEK

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SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies.

Membership Info | SMTA Certification | Bookstore

Next Event: SMTA Webtorial: PCB Surface Finishing Overview: Getting the Most Out of Your Surface Finish - June 12 - 19

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IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly.

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Next Event: ITI & IPC Conference on Emerging & Critical Environmental Product Requirements - June 12

Technical Editor - Davef (submit your technical articles)

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