Vleerkat Creations

Jöran Aerns at Private on 24/02/12

admin — Tue, 11 Oct 2011 09:09:54 +0000

Jöran Aerns

Date	City	Venue	Country
Tour: Vleerkat LivingRoom Concerts
24/02/12	Jöran Aerns in Nijkerk	Private	NL
Add Add to Google Calendar Download iCal	Time: 8:00pm. Age restrictions: All Ages. Related post.

Trust, Authenticity and Meaning

admin — Wed, 27 Jul 2011 13:58:38 +0000

Auditie The Voice

admin — Thu, 19 May 2011 09:51:11 +0000

Afgelopen maandag auditie gedaan op de preselectie dag voor The Voice of Holland in ‘t Spant in Bussum.

Ging heel goed ondanks de toch aanwezige zenuwen.
Ben benieuwd, wacht in spanning op uitkomst!

Responsive design

admin — Mon, 09 May 2011 08:48:56 +0000

Responsive Design

View more presentations from Livefront

Opnames

admin — Thu, 05 May 2011 07:29:28 +0000

Eerste verkenning van het nummer Ain’t no sunshine van Bill Withers

Versie 1

Versie 2

Why All Your Bulbs May Soon Be LEDs

admin — Fri, 11 Mar 2011 07:40:23 +0000

Why All Your Bulbs May Soon Be LEDs: “

A breakthrough in producing light emitting diodes could bring LED production costs down as much as 75%.

A breakthrough in producing light emitting diodes could see LED production costs tumble as much as 75%. That’s thanks to research by a startup called Bridgelux, which has resulted
in a radical shift–Gallium-nitride LEDs can now be grown on
silicon substrates for the first time in a ‘commercial grade.’

The tech
leverages the huge, ultra precise and far cheaper silicon wafers that
are used in silicon chip manufacture instead of the smaller, more
expensive sapphire ones. The breakthrough has been to successfully grow white LEDs
on a silicon substrate to create devices that produce 135 lumens per
watt of electrical power–well above what typical CFL bulbs can offer,
and around 10 times better than old incandescent bulbs.

So how big a deal is this? Pretty darn big. After all, did you know that those tiny flickering LED lights that sprinkle the power buttons of pretty much every device you own often need sapphires as part of their production?

Sapphire is key to producing white LEDs. It’s artificially grown, rather than being dug up from the rock, but it’s pretty much the same as the precious gem material you’re probably thinking of–meaning it’s rather expensive. Slabs of crystalline sapphire about four inches in size act as a substrate during LED production: The complex layered recipe of semiconductor chemicals that actually make up the LED devices is ‘grown’ in various process on the precise surface of the sapphire, and then cleaved from it at the end before being chopped up and packed into the more familiar dome-shaped LED unit.

But sapphire is part of the main problem facing wider adoption of LED lighting–it makes the cost of high-brightness white LED light bulbs prohibitive compared to compact fluorescent bulbs, and many times more expensive than incandescent bulbs: $40 is a pretty common price bracket for LED bulbs that put out the equivalent light of a 60-cent 60W incandescent unit. Yet many people desire the LED tech very much because the bulbs can have an incredibly long life span, measured in tens of thousands of hours, and they consume much less electricity than their older equivalents.

Now Bridgelux thinks that after the two to three years needed to ramp its new tech up to production scale, the cost of producing LEDs will drop by three-fourths. Ten times greater electrical efficiency, ten times the lifespan of old bulbs and a much more affordable cost? Yup–soon every light you encounter may be an LED one.

To read more news like this, follow Fast Company on Twitter: Click here.

“

(Via Fast Company.)