kaniagostyn *UKS Kania Gostyń

What would happen if you..... (deep thought)... please read. Even the best Fiber optic cable has attenuation loss at some wavelength. For instance, most fiber optic cable utilized in CATV applications using a 1330nm wavelength has an attenuation factor of about 0.4dB per km. So there is no way that the "light will go on forever". However, depending on the strength of the light inserted from your laser, it may go on for a while.

Ed

Laser cutting videos. I am a member of  Laser Community (www.laserfreak.net) and have many prof. Showlasers at home and work with it on many events with a prof. Company (Mayday,Germany, Nature One etc.). And the Laser´s on this Vid are very very danger!! When i see right, it has a 650nm positionlaser. The Cut-Laser was a co2 laser. Thats right? The power of this, i estimate, was 15-30 kW pulsed??
This Machine cut your hand in a vew milliseconds!!! And your eyes was destroyed alone from the reflection of this laser! And the reflection was invisible!!! It has a Wavelength around 10Âļm?? Don´t make a DIY Cutting Machine or experiments with Lasertechnic!!!!!!!!!!!!!!!!!!!
A comparison to a standart Disco-Showlaser it has a power from around 5-30W (not kW!!!!!). And it was so danger that you can with 5W a cigarette ignite in a vew of seconds!!!!

To this Vids: It was a great machine! And i want a company in my near to make this too :-(

Stupid things to do with a laser cutter. I don't know what wavelength the used laser-light has, but assuming that it is below ~125nm, It is not ionizing and therefore not causing cancer.
What he does is simply burning his skin. Remember when you were a child and burnt your hand using a magnifying glass and sunlight? that was more dangerous.
Of course, what he does is grossly negligent and I wouldn't mind if there would be an accident and it would burn a bigger hole in his hand.

But by paying this idiot so much attention, some poeple could have the desire to become as "famous" as he is now and imitate it.
It's the same with clothing. One wants to be a bit individualistic, he gets attention, the other copy it... [rolleyes-smiley!]

Który rodzaj lasera , czerwony czy IR , poproszę o radę. moduł o którym mowa :



mam taką tabelę danych do czerwonego 260mw:

Peak Wavelength(nm)- 780
CW output powermW)- 260
Operation Mode-CW
Power Stability-±10％rms，2 minutes
Spectral Line width-<8nm
Wavelength temperature
coefficient-(nm/℃) - 0.3
Emitting area (µ m)-8 x 3
Beam divergence θ ⊥ ×θ-deg.) 45/50
Slope efficiency (W/A)-1
Operating voltage (V)-1.8-2.8
Threshold current (mA)-100
Operating current (mA)-250
Serial resistance (--)- ---
Power Supply Needed-9-18 volts DC
Cooling Mode-Aluminum Heat Sink
Expected Lifetime-over 5000hours

Moduł jest wyposarzony w tldr-02 (laser driver circut)

Sprzedawca informuje że laser może być sterowany od 100mA do 250mA.
(dla lasera IR 260mw prąd może być od 20mA do 310mA )

Chciałbym sobie zrobić układ regulacji zasilania tego modułu lasera ale nie wiem jak to zrobić kopałem na forum ale układy dotyczą w większości diód L od dvd ... .Dodatkowo nie wiem jak zabezpieczyć tego typu diodę laserową przed prypadkowym uszkodzeniem szokiem elektrostatycznym.
Nie wiem także ile minut bez przerwy może taki laser pracować, i czy częste włączanie i wyłączanie ma jakieś znaczenie ?
Czym mozemy sie pochwalic?. Blu-ray Disc uses a "blue" (technically violet) laser, operating at a wavelength of 405 nm, to read and write data. The diodes are InGaN (Indium Gallium Nitride) lasers that produce 405 nm photons directly, that is, without frequency doubling or other nonlinear optical mechanisms. Conventional DVDs and CDs use red and near-infrared lasers, at 650 nm and 780 nm, respectively.
Prawda czy fałsz - różnice w źródłach. " />
">Spotkałem się też z tłumaczeniem: "blaster" - "rozrywacz"

To chyba w org. "disruptor" był, a nie blaster.


">U Vitasa trafiłem na informację, że kolor można było dostrajać, aż do "niewidzialności"... Czyżby wziął to z RPG (Star Wars Sourcebook)?

Tak, jest tam wzmianka. Zahn wykorzystał to w "Widmie" i "Wizji", jak już wspomniał annubis. Z SWSB możemy się też dowiedzieć między innymi o wspomnianej przeze mnie braku różnic między blasterami a laserami ( jest nawet wprost powiedziane, że lasery i blastery stosowane w kosmosie są dokładnie tym samym, co te stosowane w działaniach "naziemnych"); a także - co ciekawsze - że generalnie niektórym laserom kolor można zmieniać ot tak (org. "some lasers can be altered to change their beam color to any wavelength"). Czyli na szczęście nie musimy targać ze sobą kanisterków z gazem, jest to raczej cecha samego sprzętu (jak np. wspomniany już Nightstinger, na stałe dostosowany do "niewidzialnego koloru").
Laser cutting videos.
And the Laser´s on this Vid are very very danger!
Not sure how you mean, any powerful laser could be dangerous.

When i see right, it has a 650nm positionlaser.
It has, but not sure about wawelength


The Cut-Laser was a co2 laser. Thats right? The power of this, i estimate, was 15-30 kW pulsed?
Yes, 30W CO2.

This Machine cut your hand in a vew milliseconds!!! And your eyes was destroyed alone from the reflection of this laser! And the reflection was invisible!!! It has a Wavelength around 10Âļm??
Exposing hand to the laser beam would be same as exposing it to the circular cutting blade. Why should one do that. I never heard anybody had accident with laser cutters, as you open the cover only to put in or take out the material. Plastic cover protects from reflected beams, so I don`t find it so dangerous.

Don´t make a DIY Cutting Machine or experiments with Lasertechnic!!!!!!!!!!!!!!!!!!!
Making laser CNC would not be so easy, but making CNC reuter for milling is not hard at all. And, it can be more dangerous than laser!

A comparison to a standart Disco-Showlaser it has a power from around 5-30W (not kW!!!!!). And it was so danger that you can with 5W a cigarette ignite in a vew of seconds!!!!
People are lighting cigarettes these days with laser from DVD burner. There is a step by step instruction about it somewhere on the net. :)

To this Vids: It was a great machine! And i want a company in my near to make this too :-( The one you see on the video is friends laser machine and it isn`t so great. It is some Chinese made. Engraving resolution cannot be changed and dont have a mesh, so small parts just cannot be cut. On the video where orange pieces are cutting we have to put some lexan underneath so we can cut it, so that is why that much smoke comming out of it. Acrylic don`t make much smoke but it smells bad, especially extruded acrylic.
I almost always use some Taiwanese laser... 25W, that is much more precise and work better than the one on these videos.