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Laser System Paints Information on the Road Ahead

Cheaper green semiconductor lasers could bring a novel display technology to market.

Head-up displays
, which project visual data onto the windshield and the driver's view of the road, are debuting in a growing number of car models. But more vibrant, compact, and efficient displays being developed by Microvision
, a company based in Redmond, Washington, could help the technology become much more common. Japan's Pioneer Corporation
plans to release its first head-up display product based on Microvision's novel display technology this year. Major carmakers in Detroit are also planning to integrate the technology into their vehicles by 2016, says Lance Evans, a director of business development at the company. Microvision's image projector
relies on semiconductor lasers and a microscopic mirror. The company's head-up display is already in some concept cars but has so far been too costly for commercial models, says Evans. Now, falling prices of green lasers—a significant cost component of the display—should make the technology competitive with conventional displays, he says. Most existing head-up displays generate images using LCDs. Light-emitting diodes produce light and liquid crystal arrays act as shutters, controlling whether or not light reaches each pixel. This approach drains power, and the images often aren't bright enough to be visible in daylight. Newer displays use either liquid crystal devices or hundreds of tiny mirrors to reflect light onto each pixel. While more energy efficient, these displays are still not very bright. Microvision's system uses a set of three lasers—red, green and blue—and a single, millimeter-wide silicon mirror that tilts on two axes. The lasers put out light at different intensities, and the three colors are mixed to produce the final pixel color. As the lasers shine light on the mirror, it rapidly scans horizontally and vertically, painting the image onto the windshield one pixel at a time. This happens so fast that the image looks static. Evans says that the lasers' pure, saturated colors result in more vivid images with a higher contrast ratio, so they are visible in daylight. Illuminating one pixel at a time also saves energy. And the use of a single mirror rather than an array makes the device smaller, simpler, and cheaper. The final cost of Microvision's product will hinge on the price tag of advanced green lasers. Materials for true green lasers have traditionally been difficult to engineer, so most green lasers contain semiconductors that emit infrared light, which is converted to green using complicated optics. In the past few years, though, half a dozen key players, such as Nichia
,Osram Opto Semiconductors
, and Soraa
, have developed cheaper pure-green lasers. They're slowly scaling up production, which should lower costs. Evans expects that costs should fall to a tenth of current levels by the end of this year. "Green lasers alone are $200 each now," he says. "Car companies are looking at the whole display to be that much." Microvision's laser-scanning display technology beats its competitors in terms of image quality, says Krishna Jayaraman, an analyst at Frost & Sullivan
. While other companies are also developing laser-based head-up displays, Microvision was the first to propose the approach and has a technology lead. Chris Chinnock, president of the display market research firm Insight Media
, points out that mobile connectivity is on the rise, and drivers need more and more information to be displayed in the least distracting way possible. That means the head-up display market for cars could be on the cusp of significant growth.
GE's New EV Charging Stations Are Not Ugly

Stylish charging stations are one small step toward getting consumers to accept EVs.

GE's Wattstation electric-vehicle charging station went on sale this week. The most notable thing about it is its appearance. Unlike many other charging stations on the market now, this one isn't ugly. It looks like the sort of thing you might want to plug a $40,000 electric car into.
How to Make a Broken Heart Mend Itself

A few small molecules that control gene expression can repair the scar tissue in a mouse?s damaged heart. The technique could translate into human therapy for heart attack patients and others.
The Indoor Positioning System Era

You are here. Almost.

GPS rules your life. At least, it rules mine. Without the GPS on my iPhone, I don?t know what I?d do. I have dim prehistoric memories of something called a ?map,? and a hazy image of a gas station attendant pointing off into the distance.
Mathematics of Eternity Prove The Universe Must Have Had A Beginning -- Part II

Heavyweight cosmologists are battling it out over whether the universe had a beginning. And despite appearances, they may actually agree
New App Watches Your Every Move

The creators of Placeme think "persistent tracking" will have all sorts of positive uses—from keeping tabs on your exercise habits to keeping watch over loved ones.

Once in a while, you might feel like you're being watched. Lately, I know I am, thanks to a smart-phone app that stealthily tracks my every move, no check-ins required, with greater accuracy than common geolocation tools.
The Intersection of Information and Energy Technologies

Why I think computational power will solve the world's energy problems in this century.

Two talks at the TED conference this year formed, back to back, a sort of debate about the future of our planet. First, Paul Gilding gave a talk entitled "The Earth Is Full,"
about how we are using up all Earth's resources, with possibly devastating consequences. Next, X Prize creator Peter Diamandis gave a presentation entitled "Abundance
," about how we will invent innovative ways to solve the challenges that loom before us.

How Do You Know An Autonomous Vehicle Has Seen You?

MIT's Media Lab demonstrates a system that lets driverless vehicles communicate with pedestrians.

The Media Lab seems to have solved a problem that we don't yet have.

Researchers are using Google Adwords to test the persuasive power of different messages.

The Web has fundamentally changed the business of advertising in just a few years. So it stands to reason that the process of creating ads is bound to change too.

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Exhibition Stands - Exhibition Stands
...eneration organization that is responsible for regenerating the city centre of Newcastle and, as part of my job I have to work on the exhibition stands in the exhibitions that we hold regularly to inform the general public about what we are doing. Although working on the exhibition stands is only a small part of the job I do as a whole, it is the most exhausting aspect of my working life. Standing on exhibition stands can be a very boring activity, particularly if not many people are visiting your stand. Sometimes you can stand there for a couple of hours without talking to a single soul. Thankfully, however, there are a lot of other aspects of my job that I find much more exciting. I am generally involved in all of the marketing for the organization and so I get the chance to design advertisements and organise and oversee functions and receptions. This is the pa...
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Restaurant Tills - Restaurant Tills
...find that the higher the quality the restaurant you visit the less likely you are to be able to view the Restaurant tills. Obviously, if you are in a high street burger chain then the Restaurant tills are one of the most obvious features in the room with a plethora of people to take your money. This is because they want you to leave the place as quickly as possible so they can make money of as many people as possible throughout the day. As you move more upmarket the Restaurant tills become less and less visible. A mid class restaurant will probably have one till but it will be reasonably unobtrusive and, usually, a waitress will come to serve you, present you with a bill and then come back with your change when the money has been put through the till. In a very high class restaurant you would never see a till at all. Everything in these places is about attention to detail. From ...
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Celestron Telescope - Celestron Telescope
... sells, amongst other things, the celestron telescope . The celestron telescope is one of its biggest sellers because it is very powerful and easy to use. My husband is fond of the celestron telescope himself and brought one home to show me how it worked. I feel that it is a really positive thing that he likes his work and believes in the products he sells as I feel it would be absolutely soul destroying to have to sell something you did not like or know how to use yourself. My husband`s company really recognise his dedication and he has recently been promoted to the north west regional manager. Obviously we were delighted at this promotion, even though it means that he will have to do a lot more travelling than he does at present. My husband does not mind this. He likes driving and, above all, he loves meeting people so the position sounds abs...
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...mote access unit can connect corporate networks across the internet and it can prove to be very effective at helping companies unite all of their key workers. The modern and efficient technologies used in a vpnvpn london, allows data to be transferred in a safe and secure manner so any important details won`t be lost. vpn london saves you time and money...
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Epos Tills - Epos Tills
...uperstore the other day to get some cheap clothes for myself and my family to take on our annual summer holidays. There are some amazing bargains to be had in shops like this and it really is worth the horrendous queues you face at the dressing rooms and epos tills. I did my usual trick of piling up the clothes so that I could barely see through the pile I was taking to the dressing room to try on. As usual, I tried each item on, flung it on the floor after trying them on and then forgot which items I was going to purchase. Eventually, I decided what I was going to keep and what I was going to leave and made my way to the queue at the epos tills. It was even worse than usual. Despite having lots and lots of people on the epos tills there were that many people waiting that it was quite disheartening to have to wait in the queue. Another thing was that ...
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...rotected inside its case the Industrial Ethernet Switch from Korenix is ideal in dusty or dirty scenarios. Information won`t be interrupted at all when this type of switch is in action and you can imagine that the services provided by the switch in such harsh conditions have to be 100% accurate all of the time. The Industrial Ethernet Switch can work with superior software that can provide essential information for workers in the mine. They`ll need to know when the mine can be accessed and when they can carry out their duties. If you need an Industrial Ethernet Switch that will perform well in harsh conditions then Korenix could be the company that you will need to contact in the future....
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