A comprehensive resource for safe and responsible laser use
US: Hobbyist builds 200-watt portable laser from scrap parts
Anthony started by harvesting lasers used in DLP video projectors, such as the Casio “LampFree” series:
He purchased four broken projectors, each with an array of blue laser diodes totaling 50 watts, to get a grand total of 200 watts of laser output. He then used knife-edge optical components to help superimpose all the laser beams.
When energized, the beam is immense and powerful:
The highest (most hazardous) laser classification is Class 4, which starts at 500 milliwatts (0.5 watts). Such lasers can cause instant eye injury, skin burns and can burn materials. Anthony’s 200 watt laser is 400 times more powerful than the 0.5 watt limit where Class 4 begins.
In the video, Anthony says “this feels like I’m holding a bolt of lightning in my hands. This is definitely my new favorite toy.”
Adding a magnifying glass to the end focuses the beam onto a spot that can almost instantly burn a block of wood:
When operating the laser, Anthony wears a welder’s mask with laser goggles fitted. This prevents potential retinal burns caused by looking at the concentrated laser light. Below he is shown with the laser and mask.
At the end of the video, he says “I'm glad to have finally finished this beast because that means I can start working on some of my other projects, and in the coming months I have a lot of crazy stuff planned including impulse lasers that peak in the megawatts as well as explosively pumped lasers, so I'm looking forward to that….Until the next time, stay safe and happy lasing!”
Drake Anthony is a 23-year old senior at Southern Illinois University, who has been accepted into the University of Rochester PhD program. In a Feb. 2016 newspaper profile entitled “SIU student turns passion for lasers into potential career”, the author notes that “What really excites Anthony is the science behind the beam.” She quotes him as saying “From a theory perspective, it’s beautiful. It uses physics, it uses quantum physics, chemistry, good things of math, engineering. It’s just this conglomeration of all the best things that humans have come up with.”
From the YouTube video “My Homebuilt 200W LASER BAZOOKA!!!!!”, posted June 28 2016
Germany: Latest film-inspired laser shoots beams out of glasses
The technique is to look in the desired direction with the red aiming beams on, then to switch on the blue beams while looking at the desired target. The glasses have a lens that attenuates blue laser light, so that the user is protected in case of any reflected blue beams.
The two blue beams emitted from Priebe’s glasses, each roughly 1 watt, can burn cloth and pop balloons.
His inspiration: Cyclops’s 2-gigawatt “optic blast,” which is red in the Marvel comic books.
An online YouTube video shows Priebe’s laser glasses in action:
Due to the inherent danger of head-worn lasers, Priebe is not making additional glasses and he is not offering plans for others to build their own.
Priebe has previously built custom laser gadgets such as a replica of Iron Man’s palm-mounted repulsor ray projector, a laser “Gatling gun” with six rotating 1.4 watt blue beams, and a laser gun that emits a non-visible 1 megawatt pulse.
From Gizmodo. Original video posted by AnselmoFanZero.
Germany: Hobbyist creates laser "Gatling gun" with six rotating 1.4 W blue beams
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Germany: "Iron Man" laser fires Class 4 beam from a hobbyist's palm
Hobbyist Patrick Priebe’s inspiration was the comic book character “Iron Man”, who has “repulsor rays” in the palms of his armor’s gloves. Priebe’s device is self-contained, with the battery in a case that wraps around the back of the hand. Simply flexing his hand triggers the beam to fire.
Priebe’s 1 watt, 445 nm blue laser beam ignites a match
His inspiration: Iron Man’s repulsor ray glove, as seen here in the motion picture with Robert Downey, Jr.
Priebe made a number of versions. He is selling limited numbers (not mass-produced) of kits and assembled gloves on laser pointer forums for $200-500 depending on the version.
From Popular Science and many other sources. Details on the construction are at Hacked Gadgets. Videos of the device in action are here and here.
Worldwide: Warning from Casio about misuse of its laser diodes
Casio America, Inc. (“Casio”) has recently learned that potentially dangerous handheld laser pointer devices are being marketed and sold by Wicked Lasers, Ltd. (and possibly others) that are believed to incorporate laser diodes improperly removed from Casio XJ-A series projectors. Casio has never authorized this unintended and potentially dangerous misuse of the light source component of its XJ-A series Projectors.
Casio specifically instructs and warns purchasers of its XJ-A series projectors that disassembly or modification of the built-in laser module is “very dangerous and should never be attempted,” and would like to take this opportunity to remind the laser enthusiast community of that fact. The unauthorized, unintended and potentially dangerous misuse of the laser diodes improperly removed from Casio XJ-A series projectors for use in these handheld lasers, such as Wicked Lasers’ SPYDER III, may create a substantial risk of fire and injury to users and others. Casio intends to pursue Wicked Lasers and any other companies that violate Casio’s rights by misusing components of its XJ-A projectors or other products to the fullest extent of the law.
At the same time, Casio strongly urges consumers to avoid these unauthorized and potentially dangerous “laser pointers” such as the SPYDER III.