Hasta La Gadget!

Citizen is releasing 2 models of photovoltaic atomic watches in its “ATTESA” line in a limited quantity. Only 1,500 watches will be available for each model.

Because it’s a photovoltaic atomic watch, battery changes are not needed on a regular basis. It receives time calibration signals from 4 points in the world (Japan, China, the U.S. and Europe). Titanium is used for its case and band, which resists rust and makes it light and kind to the skin.

BY0045-66F (Silver) – ¥157,500
BY0045-66E (Pink Gold) – ¥168,000

Wysips popped by our trailer at the show this year to celebrate the 90% transparency of its photovoltaic display overlay achievement with us — and therefore with you. Last time we had a chance to peek through Wysips’ solar cell the transparency was sitting at 70% which was way short of today’s level and manufacturer requirements if this thing is ever to see the light of day. The current setup will not generate enough power to negate the need for a charger, not even close but what it could do is power all your music playback, for example while your phone is exposed to the sun. Wysips’ goal for 2014 is to reach a power return of 10 mWc per cm² as of today the output is closer to 3, though seeing as most of the effort has been focused on reaching this production-ready transparency, they’ve hope this will be attainable. Sampling should begin in march this year with potential for a product in the marketplace in September this year.

Honestly, the demo sets available were pretty worn out looking, though the overlay spoke for itself in that it was still visible at extreme angles but barely when viewing straight on. Part of our demo was plugging an LED into the array that had been retrofit into an iPhone and seeing the LED light come on when the solar cell is exposed and go out when covered. Here’s hoping we get a proper working demo in the coming months though for the here and now, consider us guardedly impressed. A few pics comparing overlay versus no overlay are in the gallery below.

Filed under: Cellphones, Peripherals, Science

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Eking out more power from solar cells is an ongoing challenge for scientists, and now architect André Broessel has developed a spherical glass energy generator that’s said to improve efficiency by 35 percent. Acting as a lens, the rig’s large water-filled orb concentrates diffused daylight or moonlight onto a solar cell with the help of optical tracking to harvest electricity. In certain configurations, the apparatus can be used for solar thermal energy generation and even water heating. In addition to the oversized globe, Broessel has cooked up a mobile version of the contraption for domestic use and an array of much smaller ball lenses with dual-axis tracking that offers 40 percent efficiency. These devices aren’t the first venture into concentrated photovoltaics, but they are likely among the most visually impressive. If the Barcelona-based architect’s vision of the future comes true, you’ll be seeing these marbles incorporated into buildings and serving as standalone units. Hit the source links below for the picture spread of prototypes and renders.

Filed under: Alt

Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiency originally appeared on Engadget on Tue, 28 Aug 2012 09:22:00 EDT. Please see our terms for use of feeds.

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Transparent photovoltaics have yet to grace the face of your smartphone, but don’t give up hope — UCLA researchers are working on a new see-through solar cell that’s showing potential. Using a new type of polymer solar cell, the team has been able to build a device that converts infrared light into electrical current. Current prototypes boast 4 percent energy conversion efficiency at 66 percent transparency — not crystal clear, but certainly clean enough to peer through. According to a study in ACS Nano, the technology could be used in “building-integrated photovoltaics or integrated photovoltaic chargers for portable electronics.” Translation? It could one day be used to build solar windows or better sun collecting smartphones. Don’t get too excited though, the technology still has a ways to go before any of these dreams come to fruition. Still, feel free to head past the break for the team’s official press release, or skip to the source to take in the full academic study.

Continue reading UCLA creates transparent solar cell, dreams of current generating windows

Filed under: Misc. Gadgets, Science

UCLA creates transparent solar cell, dreams of current generating windows originally appeared on Engadget on Sun, 22 Jul 2012 03:16:00 EDT. Please see our terms for use of feeds.

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Alt-week peels back the covers on some of the more curious sci-tech stories from the last seven days.

This week we swing by some superhero news, look at how solar panels might shape up in the future, explore a Lego forest and see how to grab dark matter just using some household gold and strands of DNA. Not only that, we discover how the sun likes to celebrate the fourth of July with its own firework display. This is alt / week

Continue reading Alt-week 7.8.2012: Solar flares, trapping dark matter, and life-sized Lego trees

Alt-week 7.8.2012: Solar flares, trapping dark matter, and life-sized Lego trees originally appeared on Engadget on Sun, 08 Jul 2012 16:30:00 EDT. Please see our terms for use of feeds.

Permalink   |  Technabob, Space, PhysOrg, Wired, Wired (2), Lego Festival  | Email this | Comments