Want more 'longevity' LED? You must understand the leds - corrosion protection knowledge China lighting network

Avoid LED by corrosion is one of the most important aspects of the reliability of LED. This paper analyzed the cause of LED by corrosion, and gives a method to avoid the corrosion of main - avoid LED to harmful substances, and effective to limit the concentration level of harmful substances and environmental temperature. Asked how to avoid the LED by corrosion? Key words LED, corrosion, product performance, the reliability of LED optoelectronic products, is used to estimate the LED one of the important specifications of product life. Different conditions, even in the most general LED products can continue to operate. But once LED by corrosion, LED by the surrounding environment to produce chemical reaction, it will make the performance of LED products. In order to avoid the LED from corrosion, and the better method is to avoid LED to harmful substances. Even if only a small amount of harmful substances will lead to corrosion of LED. Even LED only contact with the corrosive gas in the process of machining, such as machine in the production line, also may produce adverse effect. In these cases, can usually before the actual system, set up to observe whether LED component is damaged. Especially should be avoided by sulfur ( 硫) Pollution. Here are some examples that may contain corrosive substance ( Especially hydrogen sulfide (h2s) Including the o-ring ( o形环) Washer organic rubber foam gasket sealing rubber vulcanized elastomer containing sulfur cushion if unable to completely avoid @ some harmful substances, is has higher corrosion resistance of leds should be used. But, please remember - limit the effect of corrosion, depending on the concentration of harmful substances. Even chose a more durable LED, you should try to reduce the LED material exposure. Usually, such as heat, humidity and light can accelerate the corrosion process. However, the main influence factors and levels of concentration and temperature, harmful substances will limit both is important way to protect the LED. YanZhiXiang

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