APPLE CO-FOUNDER Steve Jobs once said, "I have great respect Afor incremental improvement... but I've always been attracted to the more revolutionary changes." His outlook lends to the reason why over 90 million people own an iPhone. To change an industry takes vision, fortitude and execution. It takes knowing what technology is currently in place and building on it to provide a better solution. Change for the better relies on a series of improvements to ultimately trigger revolutionary over haul. And such a movement has occurred in the sign industry.
苹果联合创始人Steve Jobs曾经说过：“我非常尊重进步，同样具有革命性的变化会更吸引我。”Steve Jobs解释为什么超过9000万人拥有iPhone说：“因为这是是一个行业有远见、毅力和执行力的改变，包括了解当前的技术，并在其基础上构建，以提供更好的解决方案，所以发生了实质性的变革，让苹果发展的更好。”现在，标识行业也在发生着这样的变化。
Before the LED took over as the most popular option to light a sign, there were bulbs and florescent options. Wher sign makers-as well as members of other industries-real ized the efficiency of LEDs (along with their small size anc long life), they began including them in many more projects.
According to Leslie Donels, Sales Manager at GOQ LED America, "Lower prices, higher quality and better viewing angles" all contribute to the reason for the rise of LEDs in sign projects. On top of that, LEDs have sparked change in other areas of the industry.
根据GoQ LED美国公司销售经理Leslie Donels的说法，“更低的价格、更高的质量和更好的视角”都有助于LED在标识项目中的增长。除此之外，LED还引发了该行业其他领域的变化。
Let's take a look at some specific advancements that have been made in LED technology, and how sign makers have modernized lighted signage through the years.
Today Versus Yesterday
It's been documented that LEDs have surpassed other lighting methods in signage as the preferred choice. However even over the last five years, there have been frequent improvements to LEDs.
“LEDs have continued to improve in efficiency over the past five years," tells Gray Lankford, Distribution Sales Representative, GENLED Brands. "We've also seen colon binning yields tighten, allowing the cost to decrease as more of the visibly acceptable product yield can be utilized."
Haitz's Law has dictated that costs will continue to fall as LED quality increases (See Page 19). This is the number one ceason why LEDs are trusted and used more frequently today than ever before.
"Efficacy has increased to a point where LEDs can beat pretty much any other normal lighting technology in terms of lumens per watt," says Mike Bluhm, Director of Global Product Solutions at SloanLED. "This results in lower energy costs, and fixture costs decrease since you need fewer LEDs for the same number of lumens. You can also reduce the heatsink size since you're gen erating less heat. Quality of light has steadily improved to where LEDs can rival or outperform most other light sources."
To add, "less modules are required to light a larger area and less work (is needed) for installation," explains Donels. This meaa that sign shops can also save money on labor costs while customers reap the benefits of a high-performance sign.
Blunm reinforces this concept by sharing that, "The increased efficacy in combination with lenses allow the user to install less product. Less product means less labor cost, thus easier to use."
“As efficiencies have increased, fixtures and modules with lower power and greater lumen output have been designed," Lankford says. "Therefore, we can have fewer fixtures or modules used in lighting our signs."
In the past, sign makers were cautious about, not only how many LEDS were used, but also where they were placed. Hot spots and shadows caused problems with uniform illumination and made the sign appear less than professional. Today, high-performance LEDs can make up for poor placement "Due to the proliferation of using optics in signage LED prod ucts, the exact placement of the product is not as critical as it once was," explains Bluhm. "Shadows and light separation from sharpa corners in signs have been dramatically reduced by these optics which move the light sideways versus straight up.
This "less is more" benefit presents a true cost savings without sacrificing quality.
One of the biggest transformations in LEDs has been the ability to move the light in a way that improves quality, as Bluhm mentioned. It is one mprovement that has added value to the entire sign.
"With greater lumens in smaller packages, we are tasked to develop lenses that can maximize each module's utility by spreading the light wider, continuing to minimize the number of modules required to light a sign," Lankford says. "The most difficult area for this is in channel letters where we must still account of the bends and turns, limiting the effectiveness of lens technology."
In the past, sign makers typically adhered to building a channel letter with a five- to six-inch depth. LED advancements have allowed sign mak ers to create even thinner letters.
在过去，标识制作商通常坚持用5到6英寸深的凹槽字母。<span style="color: rgb(0, 0, 0); font-family: 宋体; font-size: 11pt; mso-spacerun: "yes"; mso