light

In Umea, Sweden, the forecast for Thursday is partly cloudy with a 10 percent chance of precipitation and a high of 25 degrees Fahrenheit. As I write this in dark and damp Portland, Ore., Umea doesn't sound so bad.

But the city, located some 400 miles north of the already northern Swedish capital Stockholm, is for most of the day this time of year cloaked in darkness, with the sun rising at almost 9 a.m. and setting just after 2 p.m.

So the local energy company Umea Energi has begun installing phototherapy lamps in 30 bus shelters … Read more

If you want to steal Sparse bicycle lights, you're pretty much going to have to steal the whole bike. The Sparse headlight is called the Spacer Light, so named because it sits beneath the handlebar stem. It features a 3-watt white LED and can be set to on, off, or blink.

The 1-watt Sparse taillight slips onto the seat post. As with the Spacer Light, you would have to start removing parts of the bike in order to steal it. Both lights are made from die-cast aluminum to stand up to the elements and the jostling of biking.… Read more

If you aren't completely sick of the "Gangnam Style" phenomenon, there's a new video entry vying for your affection. This one features a light show that would draw attention and eyeballs even if you plunked it down in the heart of Las Vegas.

The ambitious choreographed LED display comes to us from a Christmas light-obsessed guy named John Storms in Texas. Last year, Storms built a display that danced to the Angry Birds theme.… Read more

Photos taken with Lytro's light field camera (aka living pictures) were already more interactive than a regular snapshot, letting you endlessly refocus the images by clicking on different parts of them. An upcoming software update takes the interactivity up a notch, letting you change the perspective of your shots, too.

The free Lytro Desktop software update, which rolls out December 4, adds this Perspective Shift feature, enabling Lytro users to slightly change the point of view of a living picture by clicking and dragging it in any direction.

For example, click and hold on the picture at the top … Read more

Sometimes, it's nice to just sit back and enjoy yourself as a mind-bending light show and distorted ambient music collide in the name of digital expression.

Throughout October, Belgian artist Romain Tardy displayed a mesmerizing art installation titled "Pagan" on an exterior wall of the Museum of National Antiquities in Toulouse, France.

The light show -- somehow inspired by a bacchanalian head from the third century -- consists of stars, lines, and abstract figures breaking apart and merging back together. Musician Squeaky Lobster provided the eerily calming music for the event, ensuring a total transformation of the senses for most observers. … Read more

Take a walk through the labs of Bridgelux (PDF) in Livermore, Calif., and you see a lot of LED lighting modules being made on a more affordable platform: disused factories that used to make silicon chips. But while you'll see lots of lights, you'll hear mostly about connectivity. Bridgelux CEO Bill Watkins envisions a new array of smart, connected sensors, cameras, and other devices integrated with LED lighting over our heads.

The challenge is formidable: Most lighting consumers, large and small, think of lighting as a cost to be contained, not an opportunity to be maximized. So job … Read more

Amazon's Kindle Paperwhite and the Barnes & Noble Simple Touch with GlowLight duke it out in this Prizefight slobber-knocker.

The Kindle brings its all-new Paperwhite technology to the table and Amazon's massive ecosystem. How will it match up against the Nook Simple Touch with GlowLight, which was the first true backlit e-reader with touch and physical controls?

These two e-readers continue to innovate and bring the best the e-reader market has to offer. So which e-reader is your Prizefight king of the ring?

Cast your vote!

For those wondering why Apple did not include an ambient light sensor in its latest iPod Touch, a purported e-mail exchange between a top executive and a customer -- ahem -- shines some light on the subject.

Apple news site iDownloadBlog posts what it says is a back and forth between Apple Marketing Chief Phil Schiller and a customer talking about the lack of a sensor in Apple's recently released fifth-generation iPod model.

According to Schiller's message, which remains unconfirmed, the device is "just too thin" to fit one:

The ambient light sensor does just what … Read more

Some people will go to great lengths to foil red light cameras. They may use darkened license plate covers, questionable spray-on photo blockers, or strategically placed layers of mud. All those methods are low tech, but there's a higher-tech option on the way.

The noPhoto is a microprocessor-controlled smart license plate. A sensor detects the flash from a red light camera or a consumer camera. It triggers a pair of flashes on the sides of the plate. Those flashes make the plate too bright for the camera to capture.

Besides combating red light cameras, the noPhoto may also find a niche in Hollywood by protecting the license plate numbers of celebrities with paparazzi on their tails. It would also save people who post pictures of their rides online from endless sessions of Photoshop license plate scrubbing.… Read more