Sign & Digital Graphics

August '18

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S I G N & D I G I T A L G R A P H I C S • August 2018 • 17 blue LEDs can appear blurry to a person's eye," Eppert says. Along with the face, it's important to keep the lighting aspect in mind as well. "For the standard, front-lit letter, the most common variables that will deter- mine the LED to be used for illumination are the width of the stroke of the letter, the depth of the letter, and the face mate- rial of the letter," says Principal LED's VP of Sales, Daryl Foreman. "The height of the letter, while one of the variables, is not as much of a determining factor as the other factors." For the most part, "Front-lit chan- nel letters, or face-lit channel letters, typically have acrylic faces with trim- cap material and large letters can be fabricated with aluminum retainers," explains Travis Popp, co-founder of Ally Wholesale Signs. "These could also be a trim-less style without any type retainer. Face-lit letters have an aluminum return (.040-.063) and an aluminum or alumi- num composite letter back. These are typically LED-illuminated, but histori- cally these were neon-illuminated." Channel letters come in several different types, from back-lit to front-lit to open-face. (Image courtesy of Outdoor Dimensions) It's important to have a clear design in order to deliver a successful project to the customer. (Image courtesy of US Sign & Fabrication)

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