Blue ray diodes

[carmangary]

Do those blue-ray diodes actually emit a blue laser? Or does it need to go through a crystal or something else like a green one does?

[JimBo]

It is near ultra violet rather than blue, it is emmited direct from the diode though.

Jim

[carmangary]

Thanks. Do you know what the wavelength is, by chance? I'm just curious about them.

[The_Doctor]

There are threads here with more info on new bluray and similar diodes than there has EVER been in the history of the interweb, with info being added every day. I strongly suggest that you read them instead of making another thread without need or usefullness. There are at least three threads already on the subject, all answering your questions before you asked them. They even have pictures. Good ones too.

That said, this subforum is as good a place as any to put those threads in, and they aren't here...

[JimBo]

They are 405nm.
There are some new pictures in the gallery showing one of them in bits.

Jim

[buffo]

To answer your questions:

Yes, they are direct injection, not diode-pumped frequency doubled units, and as Jimbo mentioned, they lase at 405 nm, which is nearly untraviolet and very difficult for thehuman eye to see. If you've ever looked at a black light, you have some idea of the color. The beam from a blue ray diode will induce fluorescence in lots of common household items - especially plastics.

Here are the threads that the Doctor was talking about:

http://www.photonlexicon.com/forums/...ead.php?t=2203
http://www.photonlexicon.com/forums/...ead.php?t=1796
http://www.photonlexicon.com/forums/...ead.php?t=1520

Adam