Using blue rays in scanners?

[lamborgini8]

Ok, despite the fact I have one scanner build in progress and two other laser pointer builds half built I am planning ahead on my next scanner build.

I have built a 10k scanner in the past and currently working on another now, I think its time I stepped up in scan speeds a bit and use more powerful lasers... I have my eye on a 30k set that has everything I need and could even want.

Thing is after buying the set and the enclosure I have two options, first is waiting a month or two so I have the money to buy some new lasers in the 200mW+ range or my second option is using this blue ray diode I have thats been sitting on my desk for a month now, and I am currently thinking of using the blue ray.

Has anyone used them in scanner builds yet? Building the laser isn't an issue but theres all kinds of issues when focusing them and I have no idea what the beam would be like at around 125mW rapidly scanning at 30k.

[mixedgas]

great for small scale graphics on a close in screen, but not for moving beams or audience scanning.

see thread on 405 nm safety

Steve Roberts

[Anthony]

i have one in my cheap lowpower rgb scanner...

The bleuray works... but you need alot of it to work.
The colors are nice and deep... and some nice pastell colors.

Safety issues i don't know alot of..... its a grey terretory.

[keeperx]

look at this
http://www.youtube.com/watch?v=MVrgWewynW0
thats sk8tinmidge

[thesk8nmidget]

hey thats my video!!!

more pictures here

http://www.photonlexicon.com/forums/...ead.php?t=5460

[lamborgini8]

Hmm they looks good but do seam a little hard to see... Say if I had 200mW of green, what would I need of blue ray for it to stand out against green? Im not even sure if blue rays can even go over 200mW.

[colouredmirrorball]

Thesk8nmidget, may we ask details about how you get this analog modulated?

[Anthony]

@ lambo..

200mw of green than you should have more than 1 Watt of 405.
I expirimented with 30/40mw of green and 100mw of 405.
I had t turn down the green.

@Collored mirrorball,

Any good analog Diode driver should work.
I use a simple ANALOG driver made of a STANWAX schematic i got from rob.

But the die4drive and drlava drivers should also work great!

[FourDee]

Any good analog Diode driver should work.
I use a simple ANALOG driver made of a STANWAX schematic i got from rob.

Please share

[White-Light]

look at this

I've always thought this video puts it in context nicely:

http://uk.youtube.com/watch?v=_DgjhVvJLXk&fmt=18


This was the one I 1st posted about a year ago when I started the discussion by suggesting that you guys should try 405nm as an alternative.

These guys audience scan but I don't know the power levels involved only to say that the Youtube video above does look possibly a little saturated to me looking at the RGY.


That said, as a safety aside, take a look at this: http://uk.youtube.com/watch?v=kegnhxQJpV0

Same group.

Anyone recognise a 4 headed laser like this at 1 min 55 secs and again at 2 min 06 secs and 2 mins 10 secs and 3 mins 30 secs (later clips height more apparent):

http://cgi.ebay.co.uk/4-LENS-DOUBLE-...1%7C240%3A1318

Thats potentially around 200mw (?) of laser mounted on the FRONT of the DJ booth at eye level meaning a member of the public could dance or stand at point blank with the aperture!!