[elektro] Szetszedtem 179

[Topybear]

"In fact, almost two decades before the Japanese scientists had finished
the work that would lead to their Nobel Prize, a young twenty-something
materials researcher at RCA named Herbert Paul Maruska had already turned
on an LED that glowed blue."

http://spectrum.ieee.org/tech-talk/geek-life/history/rcas-forgotten-work-on-the-blue-led

Viszont ez még nem volt gyártásra érett, 74-ben le is állította az RCA a
projektet, úgyhogy gyanús az a kék led a hetvenes években...

Topy


2015-05-19 10:22 GMT+02:00 njjano <njjano at firegate.hdsnet.hu>:

> "The first high-brightness blue LED was demonstrated by Shuji Nakamura of
> Nichia Corporation in 1994 and was based on InGaN."
>
> Nem kek volt az, legfeljebb eletett az illeto valami kek plexidarabot...
> vagy maga a gyarto, mittomen.
>
> Jano
>
> --
> Open WebMail Project (http://openwebmail.org)
>
>
> ---------- Original Message -----------
> From: "L. Pásztor" <seasoft at invitel.hu>
> To: elektro at tesla.hu
> Sent: Mon, 18 May 2015 17:01:55 +0200
> Subject: Re: [elektro] Szetszedtem 179
>
> > Kék led volt az, meg is bámultuk rendesen! Kerek 5mm-es ledek voltak,
> >  furta ki nekik az előlapot nagy gonddal, h egyenes legyen a 12 led.
>
> -----------------------------------------
>           elektro[-flame|-etc]
>