Cree LED Revolution Blog

Cree and LED lighting are starting a revolution

High Definition screens at American Airlines Center put HD in every seat

Friday, March 26th, 2010

I’ve been known to jump up and down or wave my scarf at hockey games in hopes of being projected on the big screen in between plays. But if I ever attend a Dallas Stars game, I’d probably check my hair and makeup before I attempted to attract the cameras.

That’s because the American Airlines Center now features high definition screens, which means Dallas Stars and Dallas Mavericks fans can now experience HD in every seat. And let’s face it, few people would enjoy being projected in HD in front of a stadium full of people with Alfalfa hair! But how awesome would it be to follow game highlights in HD (especially if your seats are in the nosebleed section).

I know we focus closely on the LED lighting revolution – helping the world ditch its addiction to incandescent and fluorescent bulbs. But our LEDs are also used in some other neat applications, and when I hear about uses such as these massive HD screens, I have to share them!

Here are some pictures:

American2

AmericanLED

So how many Cree LEDs are used to light the 25 individual screens at the American Airlines Center? 13 million. Pretty incredible, huh?

Live Blogging Vice President Joe Biden’s visit to Cree in Durham, NC

Thursday, March 18th, 2010

We will begin event coverage at approximately noon EST today! Vice President Biden will speak at our manufacturing plant to discuss middle class issues, including creating good manufacturing jobs and building the clean energy economy.

In case you don’t know, Cree is an LED chip and LED lighting manufacturer in Durham, NC. Our company mission is to obsolete energy-wasting light bulbs, including incandescent and fluorescent bulbs. You can learn more at CreeLEDRevolution.com or follow @Cree on Twitter.

North Carolina’s first green McDonald’s uses LED Lights (and cotton, bamboo, recycled glass and more)

Tuesday, January 5th, 2010

Take a quick look at one McDonald’s in Cary, NC, and you might not guess that it’s different than every other McDonald’s in North Carolina. But step inside and you’ll see why this McDonald’s in the Saltbox Village shopping center is making history.

The restaurant is the first green McDonald’s in the state, on track to receive its LEED certification from the U.S. Green Building Council later this month. (Take a look at the 25+ year-old McDonald’s v. the new one. Approximately 99 percent of the debris generated by the demolition process was diverted from landfills by either being reused or recycled).

CaryMcDonaldsOldNewCaryMcdonalds

I recently visited the restaurant to chat with franchise owner Ric Richards about why he chose LED lights to light up 97 percent of the store. Turns out the LED lights in his store consume 78 percent less electricity compared to a standard lighting package at other McDonald’s restaurants.

The restaurant was designed to take advantage of natural light and uses a fully automated, intelligent lighting-control system that combines light from Cree LED lighting and daylighting from Solatube skylights. There’s even a photo sensor to maintain the proper light levels on work surfaces. So, if it’s rainy and overcast outside, the LED light levels are increased to compensate. And since the system is automated, it’s not up to an employee to notice the changing light levels and fool around with the switches. How cool is that?!

Of course, there are many other neat steps taken to use green technologies, and there’s even a touchscreen video kiosk at the front of the store that shows off some of technologies. Here’s a video featuring some of the neat building materials used in construction and my interview with Ric about the energy-efficient LED lights:

Stay tuned, we’ll be updating you soon on the official LEED certification of Ric’s franchise.

Cree won a 2009 ECN Tech Award

Monday, December 21st, 2009

Last month I told you Cree’s XLamp® XP-G was a finalist in ECN Magazine’s 2009 Reader’s Choice Tech Awards. Well, the votes are in and we won the award in the Optoelectronics and Displays category!

We’re thrilled to be recognized for making a brighter and more efficient LED. And it’s even better knowing that we were selected by readers and our fans to win the award.

But don’t worry, we’re not just going to tuck this award on the cyber-shelf and stare at it. Our Research and Development teams are working hard now to push lumen output and efficacy even further. We’ve already come a long way since 1989.

Cree commercialized the blue LED 20 years ago

Thursday, December 17th, 2009

What were you doing in 1989? Maybe you were rocking out to “Don’t Worry, Be Happy,” the Grammy-award winning hit of the year. Perhaps you were killing time playing Tetris on the newly-released Nintendo Game Boy.

At Cree, our founders were busy commercializing the blue LED in 1989. Cree was the first company to truly commercialize the then state-of-the-art technology, explains co-founder John Edmond.

I recently brought my video camera and tripod over to John’s office to talk about what things were like at Cree 20 years ago and why the commercialization of the blue LED was so significant in 1989. (Here’s a hint: You couldn’t make white LED light without blue LEDs).

Twenty-two years after helping found the company, John still works on improving LED technology. He’s Cree’s director of advanced optoelectronics. But don’t let the title scare you away, John does an excellent job of describing the blue LED advancement in easy-to-understand terms.

The video includes a peek at an actual blue LED from the time period compared to one today. It’s truly amazing how much has changed in 20 years.

Sacramento guitar shop owner wins five Cree LED lights with photo submission

Tuesday, December 1st, 2009

It’s hard to be inspired under bad lighting. Seriously, if you’ve ever worked in a place with dim, greenish or too bright lights, you probably know what I’m talking about.

But each month Cree tries to change that for one lucky person by giving away some of our beautiful LED lights in our monthly photo contest. The November winner is Dave Lynch, a Sacramento, Calif. business owner who has been putting with fluorescent lighting for over a decade.

He sent us this photo, where you can see one of his fluorescent tubes burned out above his head and wrote: “I’ve got these horrid fluorescent lights overhead, been here 13 years, and they’re making me old! What can I do??? Help!!!!”

guitar winner dave

Anyone who uses four exclamation points is probably at their wit’s end. Dave’s entry earned him five Cree LED lights. He chose our LRP-38 lamps. His new LED lights won’t reverse the aging he says his horrid fluorescent lights caused (sorry, Dave), but they will help him save energy while also making the colors in his store pop.

I e-mailed Dave to tell him he won and included some links about our lights. He quickly wrote me back, using even more exclamation points! Looks like he did his research (and has a future in marketing if he gets bored with his guitar shop), because here’s what he wrote me:

“The lamps, the LRP-38’s would give us a huge head start in creating the basis for a beautiful energy efficient and attractively lit shop lighting system worthy of the 21st century.”

I can’t argue with that. In fact, consider this:

  • The Cree LRP-38 lamps he won are designed to last 50,000 hours, which means they could last 17 years if he keeps the lights on 8 hours a day, 7 days a week! Can you imagine not changing a light bulb for 17 years?
  • Each LRP-38 uses 12 Watts of energy, but provides the equivalent light of a 50 to 90 Watt halogen bulb. So his new lights will also consume significantly less energy than traditional lighting!

  • His new lights will provide beautiful, warm light and make the colors in the merchandise pop. Here’s why (be patient, I’m going to get a little geeky on you, but this is truly interesting and information you can later wow your friends with):

The ability to make colors look true – that is to have a tomato look like a tomato – is called color rendering. The color rendering index (CRI) characterizes light sources in view of their ability to produce “natural light” and can be between 0 and 100. A higher CRI means that colors are rendered more naturally and the light is perceived as more pleasant. The CRI of fluorescent tubes is often around 72, but the Cree LED light that Dave is receiving has a CRI of 92! His guitars can look stellar under his new true light.

After he found out he won, Dave e-mailed me some additional photos showing the icky lighting in his shop. Take a look:

guitar shop

I have to say it’s pretty exciting to give away LED lighting to someone who is so enthusiastic about it. You have a chance to win each month. Just submit a photo showing off bad lighting in your home or office.

Here’s why you should vote for Cree’s XLamp® XP-G in the 2009 ECN Tech Awards

Thursday, November 19th, 2009

Cree’s XLamp XP-G is a finalist for the 2009 ECN Tech Awards (click here to vote)! Fellow LED geeks can read the specs on the XLamp XP-G and understand why it’s receiving recognition.

If you don’t know much about LEDs, you probably don’t know why this is such an amazing creation.  But I want everyone to be as excited as we are about the XP-G, so I’m going to explain why in simple terms.

Here’s the deal: There are two particularly important things we measure about LEDs. One is how much light an LED puts out, which is measured in lumens. The other is how much energy it consumes when it puts out that light, which is called efficacy (not to be confused with the similarly-spelled efficiency). Efficacy is measured in lumens per watt or LPW.

So now that you’re armed with that knowledge, consider this:

Cree’s XLamp XP-G is currently the brightest and most efficient LED available in the industry. Here’s why: It can produce up to 367 lumens when driven at 1 Amp, at a typical efficacy of 111 lumens per watt. Now that, my dear blog readers, is very bright and efficient.

LEDonFinger

So why does all of that matter?

Well, when an LED becomes brighter and more efficient, it can potentially reduce the number of LEDs needed in an LED lighting fixture, as well as the size and the cost of the fixture. Each of these breakthroughs in LED technology means it’s becoming easier to join the LED Lighting Revolution. (Look at this photo of my co-worker holding an XP-G to get a feel for how small it is.)

So, this brings me back to the 2009 ECN Tech Awards. The Cree XLamp XP-G is a finalist in the Optoelectronics & Displays category. Now that you understand more about the product, we sure would appreciate your vote. Thanks!