leds
Latest
Bridgelux silicon LED could mean bright future for solid state lighting
While Democrats and Republicans squabble over the future of the incandescent light bulb, a Livermore-based company has produced an LED that they claim could lead to brighter, more affordable solid state lighting. By growing gallium nitride on low-cost silicon wafers, as opposed to the typical sapphire and silicon carbide substrates, the company has achieved an output of 135lm/W (lumens per watt) with a color correlated temperature of 4730K-- brighter than any affordable LED lighting solution we've ever seen. Of course, this isn't the first time efficacy of this level has been achieved, and we've yet to see a practical application, but if Bridgelux's numbers are right, this could mean a 75 percent cut in LED production costs. The company expects the technology to make its way to real world lights in the next two to three years -- perhaps by then the furor over pigtail light bulbs will have settled a bit. Enlightening PR after the break.
Let there be light! Keyport Slide gets a LED insert
Okay, so maybe it's just the natural evolution of things, but it seems as if the purveyors of the Keyport Slide have finally given owners of the $80 key vault a LED-tipped insert so they can more easily unlock poorly lit keyholes everywhere. For those wishing to obtain such convenient luminescence, its up for preorder on the company's website for $9.99 (for the LED only of course), and if all goes well, it'll ship on March 18th. Ten bucks is steep for a couple of measly LEDs, but it sure beats the flashlight-in-mouth method (on a number of fronts).
Inhabitat's Week in Green: of space elevators, floating cities and solar sheltered drinking machines
Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. This week Inhabitat showcased several incredible examples of futuristic architecture, starting with an epic floating ark that houses a self-sustaining city at sea. We also saw a plan to harness carbon nanotubes to create the world's first space elevator, and we brought you an ingenious solar-powered shelter that harvests and purifies rainwater for drinking. In other news, Asia revved up the world of eco transportation as South Korea unveiled the world's first commercial electric bus, and Beijing launched a plan to cut eliminate gridlock by cutting vehicle registration by 2/3. We also checked in on the electric Bluebird supercar, which is gearing up to break the UK land speed record next year, and we took an in-depth look at the year's best electric vehicles. Finally, welcome to 2011! As the final countdown rang out we took a look at Times Square's dazzling 2011 eco ball, which is studded with 32,256 LEDs. We also looked back on Inhabitat's top green energy, transportation, and tech stories of 2010, and we rounded up the year's best green products and wearable technology concepts that stand to change the way we get dressed for the day. And if you're running errands this week to return any unwanted holiday gifts, check out Amazon's new preemptive return tool - it could save you a trip next year.
LVX System launches visible light communication in the US, finally
Ever wonder what happened to LEDs as a WiFi alternative? Well, wonder no more, because visible light communication is here -- in the municipal offices of St. Cloud Minnesota, at least. Starting tomorrow, LVX System, a Minnesota start-up, is installing the first of a series of LED fixtures that will use flashing lights to connect office workers to the internet, while saving big on the electric bill. The fixtures also function as regular overhead lights, using 36 watts of energy where 100 watts were once necessary. The setup consists of clusters of LEDs that switch on and off thousands of times per second at intervals undetectable to the human eye. The flashes emit binary code data -- off equals zero and on equals one -- that is received by special patented modems. Lights on these modems then transmit data back to the fixtures, and voila, you've got internet. According to LVX, light-powered networks are far less crowded and far more secure than their predecessors. Unfortunately, LVX's current incarnation transmits data at about 3Mbps -- a mere pittance compared to standard WiFi or Ethernet. Then again, 3Mbps is certainly fast enough for a city employee to perform really important tasks like keeping track of their favorite gadget blog, so we'll take it. [Thanks, Andrew]
DIY LED place cards are necessary -- if your wedding must be nerdy and work intensive
Weddings are stressful, but if you out your mind to it, they can really reflect who you are as a couple. That's what the above DIY LED place cards could do, should you choose to follow the instructions and make some for your special day... or whatever. Using acrylic sheeting, binder clips, lithium batteries and LEDs, a Dremel tool and a little gumption and you'll have special, super nerdy place cards whipped up in no time. As long as you're sure this project won't be a relationship-ender, hit up the source link to get in on the fun yourself.
Inhabitat's Week in Green: of mirror cubes and urban icebergs
Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. With summer in full swing, this week Inhabitat watched the mercury rise as the world's largest thermostat burst forth with an array of 72,000 building-mounted LEDs. We also kept things cool with a remarkable plan to transform frozen construction sites into event-hosting urban icebergs. And if you haven't made plans for a summer vacation yet, might we recommend this stunning Swedish "Treehotel" housed within a silvery mirror cube in the sky? Heartening news rang forth from the renewable energy sector this week as a UN-backed study reported that the building of new renewable energy plants has officially overtaken fossil fuel plants in Europe and the US. We also took a look at two brand new types of power plants -- the world's first hydrogen-driven power plant in Italy and the first hybrid coal-solar power plant in Colorado. The past week also saw several remarkable advances in clean tech, starting with MIT's latest innovation, a new type of high-tech fiber that can transmit sound, light, and generate electricity. We also paid homage to one of our all-time favorite sources of (surprisingly green) home entertainment - the Roku Box.
Chinese scientists demonstrate 2Mbps internet connection over LED
LED data transmission used to be all the rage -- we fondly remember beaming Palm Pilot contacts via IrDA. Then we got omni-directional Bluetooth and building-penetrating WiFi, and put all that caveman stuff behind us. But now, scientists the world over are looking to bring back line-of-sight networking, and the latest demonstration has Chinese researchers streaming video to a laptop with naught but ceiling-mounted blue LEDs. The Chinese Academy of Sciences claims to have realized a 2Mbit per second internet connection that transmits data simply by modulating the flicker of the little diodes, and imperceptibly enough to have them serve as room lighting as well. Like Boston University before them, the Chinese scholars see short-range LED networks controlling smart appliances. It's not quite the gigabit speed you'd get from laser diodes, but this way you'll get more mileage out of those expensive new bulbs, eh?
The Home Depot takes LED lighting mainstream with $20 bulbs
Slowly but surely, LED light bulbs have been getting brighter and more efficient, but price has always been a major factor staying their adoption. Back in 2007, a single 308 lumen bulb cost $65, and the more things changed, the more they've stayed the same. Now, out of the blue, The Home Depot has stepped forward with a cost-effective alternative. For $20, the new EcoSmart LED bulb promises a 429 lumen, 40W equivalent with a 50,000 hour expected lifetime, making it cheaper and nearly as powerful as the 450 lumen, $40-50 design industry heavyweight GE unveiled last month. Best of all, it's already available for purchase (though backordered) at our source link. Honestly, we're starting to wonder what the catch is. PR after the break.
Inhabitat's Week in Green: salad spinners, diapers, and solutions to the Deepwater catastrophe
The Week in Green is a new item from our friends at Inhabitat, recapping the week's most interesting green developments and clean tech news for us. This week renewable energy received a giant jolt forward as Google unveiled plans to invest $40 million in North Dakota wind farms. Solar power is also having a moment in the sun as MIT unveiled the world's first solar cells printed on paper - we can't wait to see a post-it version that we can stick to our walls! Meanwhile a team of Swiss researchers are harnessing rays of light for an entirely different purpose -- they've figured out a way to create rain clouds by shooting laser beams into the sky. With the Deepwater Horizon oil spill still saturating the sea weeks after the leak sprung, we also looked at an array of innovative solutions for cleaning up the catastrophe. The first step to stemming the spill's damage is predicting its spread, which is why scientists are harnessing advanced virtual reality models to aid in cleanup efforts. We also took a look at the BP's first massive oil containment dome, which the company plans to lower 5,000 feet below the sea to plug up the leak. This week we also looked at several ingenious inventions that find incredible new uses for everyday items. Two students at Rice University have transformed a simple salad spinner into a centrifuge that can save lives by diagnosing diseases, and a Japanese company called Super Faith has invented a machine that can transform used adult diapers into an energy source. Finally, we were dazzled by two high-tech garments that harness LEDs to light up the night. Katy Perry recently took to the red carpet wearing a shimmering gown studded with thousands of blinking rainbow lights, and we were impressed by this LED-laden coat that keeps bicyclists safe when they hit the streets at night.
Another optical wireless experiment shows us that LEDs will beam your future downloads
Beaming data with light is hardly a new thing, but lately we've seen a number of attempts at making it rather more usable and, more interesting, rather more speedy. We're starting to get the feeling that those maybe/maybe not dangerous microwave-based systems have had their days numbered. The latest to beam bits with blinkenlights is a team at the Fraunhofer Institute for Telecommunications in Germany, which will be showing its stuff at the always happenin' Optical Fiber Communication Conference and Exposition in two weeks. The team was able to use a commercial LED and get an impressive 230Mb/s transfer rate, which doesn't compare to the gigabit Penn State managed or 500mb/s Siemens pulled off, but those were done using rather more specialized hardware (like the Siemens rig pictured above). It's interesting stuff, and we're looking forward to see the commercial applications for this tech, but we do have one nagging question: what if you want to surf in the dark?
Cold Feet wedding bouquet responds to your nerves on the big day
When geeks get married, there's always room for some nerdy insanity. This new take on the bouquet comes to us via just that route -- a couple of geeks getting hitched decided to DIY themselves an LED bouquet which responds to changes in Galvanic skin response (GSR). So, when the LEDs are blue, the person holding the flowers is essentially calm, whereas white LEDs indicate excitement. Now, the bouquet cannot actually tell us if the excitement stems from being overjoyed or horrified to find out that your intended owns a fully realized and accurate Quark costume, but at least it'll give you some clues to start with. Regardless, this awesome contraption is also capable of recording heartbeat rates for both bride and groom and makes use of a 1GB SD card to store the data, and other features like infrared proximity sensors to record how many times a day the bride and groom are near each other. Check out the video of the bouquet after the break. [Photo credit: Jonas Eriksson]
HexoLight brings light shows to your videogame concerts
If there's one thing we're missing when we're jamming "Cool for Cats" on Rock Band, it's a Squeeze-worthy display of lights. That's all about to change, with the introduction of Rock Gear's HexoLight LED-lighting system, a flashing display of lights to the beat of your tunes. If transforming your living room (or bedroom, or dorm room) into a place that even Jools Holland would be proud to step into is high on your list of priorities, the HexoLight -- which boasts an audio sensor to sync up to the beat and is compatible with nearly any stereo source -- is probably something you're going to want to check out. HexoLight is available today for prices starting at $30. Full press release is after the break.
Panasonic's new EVERLED light bulbs to light up your life for 19 years
Long-lasting light bulb technology is nothing new -- people have been trying to up the lifespan these bad boys for some time. Long-lived light bulbs are generally uber-expensive, too, but we like to keep our eyes on such things. Panasonic's just unveiled the EVERLED, a line of bulbs set to be launched in Japan at the end of October. Lighter and more efficient than other LEDs on the market, these babies use 85 lumens per watt for a 40W bulb. Though the bulbs are not going to be cheap -- about $40 -- the company claims they'll have a lifespan of 19 years, bringing the overall costs down considerably. Still, we'd have to see them last that long to believe it. [Via Inhabitat]
Creative to unveil World of Warcraft headset at BlizzCon
Creative Labs posted a World of Warcraft-related teaser yesterday, and today WoW.com is proud to deliver an exclusive reveal: they're promoting a brand new product called the Sound Blaster World of Warcraft headset. This will be a state of the art gaming headset available in both wired and wireless versions, complete with all of Creative's high end gaming audio technology, including THX TruStudio PC Surround, which they say is the "most advanced 'virtual' 3D surround" on the market today. Creative's CMSS is already recognized by many as the best virtual surround sound in gaming, and THX TruStudio PC is supposed to sound even better. The headset also features Creative's VoiceFX technology (so you can disguise your voice with a few different effects), and they say the wireless version of the headset will feature an uncompressed signal that sounds terrific as well.The headset itself is designed in coordination with Blizzard, and the ear cups (which are complete over-ear) actually feature lighted glyphs, available in Horde or Alliance flavors at launch (with other designs released eventually), and illuminated by programmable RGB LEDs. They have their own software interface, so you'll be able to choose from 16 million colors. Price isn't set just yet, but we'd expect it'll be in line with other high-end headsets, from $100 to $150 depending on what options you go with.The headset releases in November, but Creative also sent us the pre-prototype render at right, and they've updated their teaser with a picture of the Alliance glyph. Creative tells us they'll have the headset on display at BlizzCon, so if you're there this weekend, stop by their booth and check it out. And be sure to stay tuned to WoW.com -- we're working on a way to give you the chance to win one of these for yourself. BlizzCon 2009 is coming up on August 21st and 22nd! We've got all the latest news and information. At BlizzCon you can play the latest games, meet your guildmates, and ask the developers your questions. Plus, there's some great looking costumes.
DIY ShiftBrite coffeetable a beautiful, headache-inducing conversation piece
Searching for the perfect coffeetable is a struggle we know well. DIYer macetech has sidestepped the whole "boring" furniture problem by installing 81 ShiftBrite LED modules into a 2x2 foot IKEA table which run a sine plasma into HSV/RGB conversion by way of an Arduino. Sure, it's probably not something your grandmother would want in her living room -- but your friends would undoubtedly be pretty jealous to see this thing hanging out in your place. Watch out for seizures, though. Video of the table in action after the break.[Via Make]
Color changing Luxeed U5 LED keyboard is a rave at your fingertips
Luxeed's got a fine history of making the keyboard a fantastical piece of wonder, and its newest offering is not exception. The U5 LED keyboard has pretty much everything one could ask for in a colorful peripheral -- programmable, patterned LEDs which are guaranteed to brighten up your day. It boasts support for Windows, Linux and Mac (previous versions were Windows only), so if it's ever made available outside of Korea, we can guarantee you we'll be getting one for every member of our dance posse. They're available for pre-order in Korea now for KRW 99,000 (about $77 USD). One more mountain-moving shot after the break. [Via Technabob]
Guitar Hero arduino note visualizer lights our fire
A crafty Guitar Hero DIY-er has built a little project with possibly startling implications. The includes ambient light sensors in front of the television which are triggered by the light of the notes on screen during Guitar Hero gameplay. The sensors trigger an Arduino to turn on LEDS on a nearby setup. In the video (which is after the break) you can see the entire thing in action -- which maker Joe says can eventually lead to a rig which plays the game for you. The horror![Via Make]
Kenwood SP0001 speakers sure to spice up your in-house raves
Kenwood's about to unleash some really crazy speakers upon the world... if you live in Japan anyway. The bad-looking dudes have 10-watt, 2 channel speakers with 6-centimeter woofers and 2.5-centimeter tweeters, which isn't exactly super powerful, granted -- but they are transparent. Oh, and they have some awesome LED effects, as well. We're not sure exactly when they'll be available, but they're going to run you ¥100,000 (about $1,000) when they are. Check another shot (with LEDs in full effect) after the break.
Tokyoflash's Heko watch: the perfect gift for fashionable cryptologists
We've always been a fan of watches with unconventional ways of telling time, and Tokyoflash's Heko is no exception. The top and bottom rows each have four LEDs aligned for their analogous analog positions -- 12:00, 3:00, 6:00, and 9:00 -- and two lights in between to indicate one-hour / 15-minute intervals, respectively. The four diodes in the middle are used when the minutes aren't a multiple of five. For example, in the picture above we've got (from left to right) 1:37, 1:43, and 10:13. More instructions are available on the product page. Made from solid stainless steel and weighing in at 140 grams, it's available for 9,800 yen ($109) and comes with white, blue or multi-colored LEDs. %Gallery-43722%
German scientists think LEDs are the new Botox
All of us here at Engadget are young, beautiful, and vigorous, but we understand that time is not always as kind to everyone else as it has been to us -- that's why we're giving you the heads up that German scientists claim that they can restore your youth in a whole new way. Researchers Andrei P. Sommer and Dan Zhu say that they were able to reduce wrinkles by subjecting a test subject's skin to regular ol' LED lights daily over a period of several months. It seems that at a certain intensity the light dives into skin tissue and alters the molecular structure of water that would otherwise immobilize elastin, a protein that keeps skin healthy and, y'know, elastic. The researchers believe the tech can be "converted to deep body rejuvenation programs," which we assume entails more than just taping our faces to our LED-backlit screens -- but we'll try it just in case.[Via The Earth Times]