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single frequency blue lasers - 488nm
Posted: Wed May 26, 2010 6:35 pm
by Paulos
Listed by two different(?) sellers
http://cgi.ebay.com/NOVALUX-488nm-BLUE- ... 53e18a183f
http://cgi.ebay.com/NOVALUX-488nm-BLUE- ... 414fd4ca3c
May be a candidate for color holography or DCG.
Depicted as single frequency - 15mW, but seller only guarantees that a laser beam is emitted.
( "Our Warranty is for laser to lase and you see laser beam. We do not warranty any specific specs. " )
single frequency blue lasers - 488nm
Posted: Wed May 26, 2010 7:56 pm
by dave battin
yes i see a bunch appear on ebay today. (green too)... sam says they were very unstable. i have purchased one and will test asap (upon arrival)!
single frequency blue lasers - 488nm
Posted: Thu May 27, 2010 5:50 am
by holo_cyware
In the specs they specify 2 TEC's and so on. But no ring design.
No ring no joy...
single frequency blue lasers - 488nm
Posted: Thu May 27, 2010 6:56 am
by Paulos
holo_cyware wrote:......No ring no joy...
Not necessarily.
Although no ring, C315Ms are perfect for holography, super stable with a coherence length of many meters.
Stability might be an issue though.
Dave, please report your results on the forum.
single frequency blue lasers - 488nm
Posted: Thu May 27, 2010 2:58 pm
by 142laser
These lasers are problematic and the sellers are known rip offs. I myseld bought one some months ago and sent it to Sam. He was able to get it working under 10 mW, not reliable and never tested it for SLM as it was too flaky to keep. These are 5 mW spec lasers or most of them are. Save your money for something good. If you do buy one...good luck! Phil 142laser
single frequency blue lasers - 488nm
Posted: Thu May 27, 2010 4:48 pm
by Laser Ben
These were tested by the company I worked for last year. Most of the ones we tested did not work, and I don't recall any making rated power or not having some issue.
single frequency blue lasers - 488nm
Posted: Thu May 27, 2010 5:25 pm
by 142laser
Thanks Ben, that is certainly the real truth. Well speken! Phil
single frequency blue lasers - 488nm
Posted: Thu May 27, 2010 6:27 pm
by Laser Ben
142laser wrote:Thanks Ben, that is certainly the real truth. Well speken! Phil
I should say, we tested everyone for them as part of a contract we had with them. So everyone of these units has been tested and was marked with functionality on the power supply and head, the fact that they don't have labels means that they took them off because of the poor performance figures.
single frequency blue lasers - 488nm
Posted: Thu Jun 24, 2010 6:28 pm
by opticsislightwork
Does the Novalux 488nm laser really need a VGA connector between the power supply and head which carries 4 amps and is rated at 80V? If so, where would you find such a cable?
Thanks
single frequency blue lasers - 488nm
Posted: Thu Jun 24, 2010 7:51 pm
by dave battin
opticsislightwork wrote:Does the Novalux 488nm laser really need a VGA connector between the power supply and head which carries 4 amps and is rated at 80V? If so, where would you find such a cable?
Thanks
i purchased one of these lasers and i could not get it to lase, i sent it back along with my cable, he fixed it (he says)and returned it to me, it STILL didnt lase! so back it went and the full refund is now on its way........ im not so sure about this seller!
ok so long story short i have an extra 1' VGA cable that will work, PM me and we can work out the details...........
PS Danny got one and it works fine? so go figure! :wall: