For sale: DMLP425 Dichro - combine 405nm and 473nm blue lasers

[legato]

If you want to boost your 473nm blue laser by combining it with one or two low cost 405nm bluray diodes, I have what you need.

I am selling some DMLP425 dichroic mirrors on eBay. Actually I am selling precisely cut pieces of the original part. The cost being quite high at $165USD (plus shipping) and the diameter of the mirror being too large for most needs at 1", I decided to cut it in 4 quadrants and sell the three other parts. I kept my piece, and one is sold already, so there are two quaters available now. Each piece is 0.5" X 0.5" and one side is round. I am asking $80USD if using the Buynow option, but there's a bid too. Shipping is only $5.

Go see the listing for details and a photo. My seller id is eKits4All. I have some powerful red laser diodes too.

Cheers,
Norm

[allthatwhichis]

NORM!!!

Have you by chance measured the losses on this optic? I am interested in the difference between Bridge's and other sources.

[buffo]

Damn dude... Where the hell have you been? Hope you decide to stick around a little longer this time. Lots of good questions have gone unanswered!

Got anything to share re: the USB version of NLS?

Adam

[legato]

Hi,

Actually, this is a test I wanted to do for a while, but tonight ended up being a good time to do it.

So here:

I placed the dichro at 45 degrees like it's meant to be, and measured incoming vs outgoing power levels for both 405nm and 473nm.

405nm
=====
296 mW in
286 mW out
Efficiency is 97%

473nm
=====
74mW in
72mW out
Efficiency is 97%

Honestly, I was amazed myself. The specs say >90% on both wavelengths, but as you can ses, they are conservative. BTW, all Thorlabs products are outstanding from my experience, not to mention their really great support and communication.

Cheers,
Norm

P.S. Hey you remind me... it's true... I had forgotten how people always used to yell out loud "NORM!!!" everytime I entered a party Too funny.

[legato]

Hi Adam,

Yeah, I admit I've been neglecting my friends for a while. Sorry if emails got lost in the pile - just resend your questions please. I have been very busy with consulting contracts, all laser related. Really fun to be paid for doing what used to be a hobby

Now, there's lot going on here with NLS and FSX. First FSX 2.0 is going in production in two weeks, after lots of testing and development. In short, it will be 12bit XY and 3X8bit analog RGB. NLS will have several new features, but only available to those who buy the FSX. The price will be $200USD. The LPT port DAC will still be supported but only for the features that were there until recently, with the exception of autotrace. Autotrace now supports colors, and has been improved. An abstract patterns generator will be introduced. The wish list is endless, but I have to take it one day at a time. For sure, it will keep improving, and I am working on a new concept to try attract programmers and have them working on NLS to add cool features. Can't tell much about this presently...

That's about it for today. Keep an eye on my new website: http://www.ctrnd.com/NormLaserShow/LaserShow.htm
Update your bookmarks BTW... I have a permanent server now.

It hasn't beed updated since April, but I will tackle this when FSX 2.0 is ready to ship. I will post a message here too.

Cheers,
Norm

[dream beamz]

Out of curiosity, I noticed people were looking for the legacy LPT Dacs, what are people selling these for. I have two of them assembled (and tested) with assembled power supplies. It is possible to put a 3rd IC in place and some other parts and get blue blanking working and if so what software supports it

I cannot remember since its been awhile since I assembled these (2 years) but didnt these have a pcb witting issue on the polarity of one of the capacitors that I notified you about. I could be wrong, it could have been one of the billion other kits I put together for fun, especially the cheap ones.

[legato]

Hi D.B.

I can't tell you what is the price they sell them for. But yes, the LPT DAC will support RGB modulation if you add the 74HCT573 latch (IC2). You will have to move your modulation leads from the G+/- or R+/- blanking output pads, and use J2's pins 1,3,5 instead, to get the TTL modulation signals (2,4,6 are GND).

As a courtesy, I give you all the PDF and schematic for free
See here:
http://www.ctrnd.com/NormLaserShow/D...DAC_Doc_10.zip

And yes I remember very well, you're the guy who notified me about the cap's polarity error - thanks again.

Regards,
Norm

[smogthemog]

Hi Norm

Look forward to seeing the new Dac & SW mate

Jim