According to an article in Electronics Weekly, a UK-based sister publication to Design News, the European Commission has published a decision to exempt the use of cadmium in certain color-converting LED screens from a ban under the RoHS Directive.
Decision 2010/122/EU of February, 25 finds that, technically, no suitable alternative has been found. This will be exemption 39 for use in solid state illumination or display systems and will run until 1 July 2014.
The applicant for the exemption was 3M, and the exemption is for a new type of LED that is not yet on the market other than in sample quantities. Potential future applications will include lighting (white LEDs), projectors (beamers) including small handheld devices and possibly even mobile phones. The exemption has been published in the “Official Journal” of the Commission and is therefore in effect now.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.