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Hi Xer0, I'm german too ;D Grüße!

Finally I ordered 3 of them. I think they are really worth it ,shipping was extremely fast (2 days from order to arrival at my house) and they take 200mA CW without breaking. And are really really bright :) I could not test more because first I had no googles and second I didn't want to risk...

The datasheet can be found here: http://digchip.com/datasheets/download_datasheet.php?id=824381&part-number=RLD65PZB5 It says 240mW maximum power in pulsed mode. Strangely it gives no rating for cw!? However the stonetek diode has only 180mW pulsed rating so I think they are comparable. If...

Hi everybody, does anyone know this laserdiode: http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWNX:IT&item=280302811549 ? The offer is in German. It is for 3 diodes. Is this a good deal?

Just for fun! Always wanted a laser tunable over the visible, so dye laser was a must! The BR started when I bought some diodes for a friend in university. I was really impressed about all the flourescence stuff and thought of building a pointer thats how I found this side. So yes I prefer BR...

Googling "tea nitrogen laser" gives a lot of useful results. e.g. first one: http://technology.niagarac.on.ca/people/mcsele/lasers/LasersTEA.htm another cool source: www.pulslaser.de (in German) TEA lasers are really fun (my first homebuilt was one). However I want to remind that you cannot be...

Then the ultimate theory is n-dimensional with n any number from 3 to infinity and all present theorys can be derived from this by taking the limit n --> some number ;D Reminds me at the joke how a mathmatician imagines a 4-dimensional space: just imagine an n-dimensional space and take the...

String theory is quite in defense nowadays. Their critics say that yet it can explain everything, it has not predicted anything new which could be verified by experiment. Don't know if things are different now whith the new accelerator in cern? Alway wanted to understand it, but it seems one...

Looks good! Thanks!

Hi everyone, I am currently looking for cheap photodiodes with large area for a laser powermeter. Until now I only found some hamamatsu diodes: http://sales.hamamatsu.com/en/products/solid-state-division/si-photodiode-series/si-photodiode/part-s2387-1010r.php# not so cheap (~50euro)! Any...

Not as big as this: http://www.repairfaq.org/sam/laserpic/hugepics.htm#hugetoc :o This "small" rod is only a preamplifier for this ones.

The same problem, lack of time! And tools! :'( So far I've built 2 blurays ( one pointer, one labstyle), and a nitrogen laser which I use as pump for a dye laser. (These two will not fit into this forum, they are dangerous monsters no pointers). I like to built some blurays for my friends, cause...

Thanks Ben, also for the positive rep! BTW whats an ISEF Project? HoCrTh:YAG is deep in the IR, whats it about?

I'm on. Nice Idea!

In Vienna? Nice some of my friends moved to there. I always wanted to visit this city but had no time till now. :(

Is this GB started already??? Maybe I didn't read the 38 pages of this topic but it doesn't seems so!? Anyway @Igor: please put me on the list for 2 once it starts! Andreas

Re: Lava Micro FlexDrive Driver (lavadrive2) fits Hi drlava, Seems all my friends like this bluray pointers, which means I need some more drivers. :P pm'd you already

I asked at roithner if they have specs for the coating or can do different coatings or deliver the lens uncoated, lets see what they reply, could still be that the coating is broadband. What about reflection from an uncoated lens? I know that for a plane surface reflection is about 4% but for a...

Yes, just bought some 25mm aluminium rod drilled a 12mm hole in it and sawed a 1cm piece from it. In the 1st picture you can see the marble resting on another one

The second picture shows the inside of the pointer head, with the driver directly soldered to the diode and embedded in a teflon spacer. Doing it like this a still had enough space for the original battery case. Unfortunately my camera makes no nice closeup pictures so its a bit blurry. BTW is...