Clicky Link
Allegedly...
Clicky Link
Allegedly...
is this the picture you were trying to link?
With this info:
Offenses
Offense: SEXUAL ASSAULT of an 8 year old boy Convicted: 19 May 1999
Alias(es)
Quote:
Originally Posted by criminaljustice.state.ny.us
Offense Description:
Actual,Promoting/Possessing Sexual Performance by a Child
Actual,Sexual Contact
Actual,Sexual Intercourse
Actual,Deviate Sexual Intercourse
http://criminaljustice.state.ny.us/S...fenderid=19412
David J Todeschini in Jersey City, NJ - Criminal and Sex Offender Registry by Homefacts.com - Learn more about your community.
-------------------------------------
Offenses
Offense: Sodomy-2nd Degree Convicted: 19 May 1999
Offense: Sexual Abuse-1st Degree Convicted: 19 May 1999
http://www.homefacts.com/offender-de...odeschini.html
Indeed, a child rapist, a pedophile. He did 7 years for it.
He was banned from LPF twice, once for lying, and once again, for lying and trolling in general.
This man knows nothing, he is a disgrace to the laser community.
http://www.homefacts.com/offender-de...odeschini.html
http://criminaljustice.state.ny.us/S...fenderid=19412
He even tries to deny it:
Or this:Originally Posted by ciphoenix
W5256tOhFjs
Or his posts about 'safety'
But in other news, 2W out of a single 445nm diode has been done.Q. Are the higher power 200 to 500mW LASERS dangerous?
A. In responsible hands, they are no more "dangerous" than very bright flashlights. Staring into the beam of either a LASER or a 1,000 Watt Klieg lamp will most likely cause temporary "spot blindness" but to permanently damage your retina would probably be unlikely at any appreciable distance because a light this bright will cause an involuntary aversion reaction. This is the reason that shining a LASER at an aircraft or moving vehicle is illegal. Looking into a LASER beam of a 200mW or higher power LASER at close range is definitely NOT recommended.
The build used three DrLava FlexDrives in parallel, and two 26650s (or was it 32500?) as the power source.
This one had a 19 minute run
http://www.youtube.com/watch?v=HKyhPglLI0I&feature
You can see his build here
http://laserpointerforums.com/f52/2-...ost-60465.html
As alluded to above, he has a couple of other high powered ones as well.
Peace,
dave
Wow... Just - Wow...
That thread on LPF reads like one long train wreck. I wanted to stop reading, but I couldn't. Read through all 3 pages. Jesus! What a melt-down...
I have to say, I was impressed with the safety talk in that thread. Seems that there are quite a few folks over there who are well aware of the risks these new high-power diodes can pose. It's a refreshing change from what I remember reading last summer.
As for Awesome Lasers? Well, I think they pretty much screwed themselves. That thread just got crazier and crazier as it went on. First the bad information and obvious lies, but then paranoia set in with the Scientology references, the dubious claims of military service, a narrow escape from the 9/11 tragedy... Sheesh! The guy sure has lived an interesting life, hasn't he? (Not to mention the child molestation convictions...)
Ugh. I feel like I need to wash my hands after reading all that.
Adam
I guess it does depend on the diode you can find. We've already estabilished that these Nichias are surprisingly hard to destroy and can handle tremendous amounts of power, but I do wonder what will be the statistical limit for these things.
That 2.1W build was done with only passive cooling and driven from a battery. Throw in a TEC and a lab-style heatsink/driver combo, and you've got yourself a good experiment to determine what the absolute maximum of these diodes could be.
There are some beefy TEC assemblies on the market today, especially if you look at PC CPU cooling assemblies. Those things can chill the entire diode down to sub-zero temperatures (if you really want to).
I guess a reliable 2W from a lab style module would not be so much fiction. But for now I'll stick to 1W from a single diode.
I actually bought the laser in the LPF thread referenced above ... The specs match his claims pretty much exactly; I was rather skeptical at first.
It starts at about 2130mW and maintains over 2100 for about 2 minutes. It maintains above 2w for 6-7 minutes, and ends up at around 1.9w after 10 minutes.
This was according to DTR's Laserbee, and my Kenometer Pro. Both numbers agreed; (Jerry, I still may want to get a Laserbee from you as a 'second opinion' meter! I know our conversation in PM there was err.. cut short).
As Dave said though, A build like this is mainly a hobbyist curiosity, as the power does drop on a linear slope.. a projector would likely shift pretty "warm" in color temperature with blue dropping by almost 300mW in ten minutes.
What I am wondering though is if the decrease in this build is strictly due to thermal aspects, or the 32650 battery. I fully expect this diode to pop one day; (especially since Jerry said he blew a die bond wire at 1.8a... hmm ) but it would be interesting to see the output graph with a TEC and a constant power supply.
I wouldn't be surprised if that was actually one of the diode's weak spots causing to be specced lower. We know the resonator is capable of sustained high-power output, but the reliabilty aspects could very well be in the die bond wires since they are going to be serious thermal hot-spots at high current. Adequate cooling may help that cause.
Furthermore, I think the die bond wires could even be under some serious mechanical strain because of the magnetic field they generate inside the diode at 1,8 amps. It won't be a problem for 14AWG wire in an insulated cable, but micrometer-thin wires in a diode can only a millimetre apart can very well be ripped apart by their mechanical tension because they repel one another. This will only be aggravated by the thermal issues if cooling is insufficient, weakening the wires even further.
Sounds like a job for super conductors was a big buzz about them some years back but have not heard much recently but if they did exist they would eliminate the heat factor. Even if they are very expensive you would only need a very short piece inside the diode