The issue about LED brightness can be addressed through a combination of collimation (i.e. light rays are produced so that they run parallel to, rather than intersect, each other) and light filters. A brand-new LED design that incorporates these two elements is currently being tested in Taiwan and Mexico, according to The Optical Society. Alternatively, LED sign companies in Tulsa, OK, can tinker with their signs’ phosphor efficiency (which is directly related to brightness, although it mainly applies to white LEDs) and light extraction efficiency (which determines if the LED is more suitable for utility or cosmetic purposes). Through this, as well as their clients’ insights, sign companies can be counted on to produce attention-grabbing LED signs that can boost business in much the way online marketing does.
http://www.crownneonsigns.com/blog/14-info-article/60-work-closely-with-tulsa-sign-companies-to-get-your-led-signage-right
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