Ad: Manage updates with the Download App
ie8 fix

leds

Toshiba, Bridgelux bet on silicon to slash LED lighting prices

Toshiba and Bridgelux think they're worked out the key ingredient to making LED lighting mainstream: silicon.

The two companies today announced a partnership to manufacture LED light sources using much of the equipment typically used in semiconductor fabs. They intend have a commercial-scale facility operating next year, according to Bridgelux CEO Bill Watkins. As part of the deal, Toshiba has invested an undisclosed amount in Livermore, Calif.-based Bridgelux.

LED light sources, which are used in everything from TVs and consumer light bulbs, are typically made with a semiconductor -- gallium nitride -- on a layer of sapphire. Bridgelux … Read more

Liquid-cooled LED bulbs ready for summer

Switch Lighting's LED bulbs have similar technical specs to its competitors, but the startup is counting on clever design and good looks to stand out in a crowded field.

The company plans to make its first three general-purpose light bulbs available this summer to lighting distributors and today is expected to introduce a three-way bulb and a 240-volt bulb for markets outside the U.S.

Its first bulbs are replacements for 40-watt, 60-watt, and 75-watt incandescent lamps. Costing between $40 and $50, they are primarily aimed at commercial customers. Switch Lighting is also working on a less expensive consumer-oriented … Read more

LED lights seek to uncrown 100-watt bulb

General Electric today introduced a 100-watt equivalent LED bulb which is the clearest example yet of how high-tech lighting has become.

The company's Energy Smart LED bulb consumes 27 watts to give off the same amount of light as a 100-watt incandescent lamp. It will be released in the first half of next year. The price has not yet been set.

GE's announcement, made at the Light Fair industry conference in Las Vegas, shows how lighting manufacturers have finally cracked one of the toughest challenges in LED lighting -- making lamps able to give off a lot of … Read more

100,000 'firefly' LED bulbs float through Tokyo

For centuries, the people of Tokyo have been flocking to the Sumida River to see fireworks displays. This past weekend, though, they got a spectacle of a different sort as thousands of electric "fireflies" wafted downstream.

The Tokyo Hotaru Festival 2012 is a modern twist on the age-old Japanese love of watching fireflies along waterways. Some 100,000 blue LED light bulbs floated down the Sumida in imitation of the insects, long celebrated in haiku and other verse.

Measuring just over 3 inches across, the LED bulbs were charged with solar-generated electricity and later reclaimed in nets downstream. … Read more

Flashing LED guitar neck channels your inner rock star

I'm looking at my guitar sitting on a stand in the corner of the room. It just looks so plain. If only it had screaming LED lights blazing along the neck and lighting up as I shred my way through a folksy murder ballad.

My imaginary light show could soon become reality with NeckFX, a Kickstarter project that aims to turn regular guitar necks into finger-triggered light shows.… Read more

Why do plasma TVs look washed out in the store?

CNET Reader Rob asks:

I've been reading your articles on HDTV and find them very informative so, here's something I need cleared up. You mentioned how plasma TVs can control the brightness of individual pixels, made me think they should have a superior picture to LCD -- so I went looking at plasmas. I noticed that they seem to have a "washed out" look, an overall dimmer picture than LCD. Everywhere I go this seems to be the case. What's up with that? Thanks.

A common question, and a huge issue with plasmas, but not how you might think.… Read more

Philips LED replaces 100-watt incandescent

Philips this fall will release an LED bulb as bright as a 100-watt incandescent lamp, filling out its existing LED line.

The company will add to its EnduraLED line with a lamp that gives off almost 1,700 lumens, or about the amount of light as a 100-watt incandescent, and consumes 23 watts. The product will be available this fall. Philips did not disclose the price but it is expected to be in the $40 to $50 range.

This latest EnduraLED has a color temperature is a warm yellow at 2,700 Kelvin, is dimmable, and has a color rendering … Read more

When HD isn't HD

Not all HD is the same. For that matter, just because you have an HDTV, that doesn't mean you're actually watching high-definition video. A variety of factors could be conspiring to create an image that's not nearly as good as what your TV is capable of.

Make sure you're getting the most from your TV with this guide.… Read more

Monitor disk activity with Free HDD LED

The hard-drive activity LED on your computer's front panel flashes when your HDD is active. It blinks reassuringly when you think your system has frozen up -- or it did, when computer cases still had HDD LEDs. Fewer and fewer PCs display HDD LEDs, though most motherboards still support them. No need for hardware mods with Free HDD LED. This portable freeware monitors your HDDs, including SSDs, and displays disk activity in a desktop widget and system tray icon. It monitors SATA and IDE internal drives as well as USB drives, which means it's compatible with most drives, … Read more