A comprehensive resource for safe and responsible laser use
In an April 28 2018 news story, a Congress party leader said the April 29 - May 4 show on Kedarnath Temple is an insult to Lord Shiva and his devotees.
The 25-minute show is privately funded by the Akshar Travels group of companies, in part to attract visitors and pilgrims to the temple, which is so old its builders and date of construction are not known.
From a YouTube video of the show, it appears there are no lasers used. Instead, the show consists of video projected onto the temple plus narrow lights similar to spotlights or the Clay Paky “Sharpy” moving beam light. The video projector’s light source could possibly be from lasers but even then it is not a “laser show” by the conventional definition of a show using laser beams and/or cartoon-like simple outline graphics.
From The Statesman and the Pioneer
The hobbyist, with the username “styropyro,” wrote on YouTube: “Just finished building my 40W(!!!) laser shotgun!!! The output of this laser is complete insanity, and is made up of 8 parallel 5W laser beams totaling to 40W. The parallel beams are manipulated with lenses, sort of like how a choke modifies the spread of a shotgun blast. The massive diode array is powered by a huge lithium polymer battery pack (capable up dumping 250A) and the laser array is regulated by a whopping 24 LM317 drivers. This is definitely the craziest thing I have ever built, but I hope to beat this invention with something even crazier before too long.”
In the video narration, he said “I just built something so crazy that I’m almost afraid to use it” and “There is no, no good reason for anybody to own something this powerful. But because it wasn’t illegal for me to build, I decided to build it anyway.” The video then goes on to show the beam popping balloons, and burning paper, a ping-pong ball, and other materials.
Styropyro had previously posted other videos with titles such as “Homemade Lightsaber!?! MASSIVE 3W Handheld Laser Torching Stuff!!”, “My Homemade 6W Laser Sword!!!” and “Homemade Death Ray Laser DRONE BOT!!! Remote Controlled!!!”
From Gizmodo. Thanks to Patrick Daniel Murphy for bringing this to our attention via Reddit.
The Aerolaser is made by the Delft, Netherlands company “Bird Control Group”. The handheld device uses a green laser with a range over 2500 meters (1.6 miles). The company claims that birds do not grow used to the laser, and it is safe for the animals. According to an article at the website IHS Airport360, “As a safety feature, the laser is disabled above a certain height - this prevents the beam from being shone directly at aircraft or controllers in the tower.” In addition, the operator can look through a scope so he or she knows where the beam will be directed.
Conceptual diagram of using a handheld laser around airports, from Aerolaser.com
A frame from an Aerolaser video describing use at the Southampton airport.
A frame from another Aerolaser video showing laser light scattering birds.
The company also makes an automatic, autonomous system called Aerolaser Groundflex, pictured below from the company’s website:
According to Wikipedia, “bird strikes are a significant threat to flight safety” since 35% of strikes result in damage to the aircraft, costing $400 million per year in the U.S. and up to $1.2 billion per year worldwide.
Bird Control Group also makes the Agrilaser Lite (range of 1000 meters) and the Agrilaser Handheld (range over 2000 meters), intended to keep birds away from fields and crops.
In the video, various animated characters are shown lasing planes and going to jail, hurting themselves by misusing powerful lasers, aiming at police and getting shot, and otherwise having an ironic, unfortunate outcome.
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”Dumb Ways to Blind” is modeled after “Dumb Ways to Die”, a November 2012 YouTube hit originally done for Metro Trains in Melbourne, Victoria. The Australian campaign “generated at least $50 million worth of global media value in addition to more than 700 media stories,” according to ad industry magazine The Age. It was viewed on YouTube over 84 million times as of July 2014.
The laser version is one of dozens of parodies and spin-offs. Unlike many of these which are done only for humor, “Dumb Ways to Blind” appears to have an educational goal similar to the original “Dumb Ways to Die”.
A YouTube video shows infrared and visible footage of the test.
The 10-kilowatt High Energy Laser (HEL) system previously demonstrated an ability to track, target and destroy rockets traveling at high speed.
From Gizmag and Engadget
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.
Barry Jackson, an A380 pilot and former president of a pilot’s association, cautioned in early January 2014 that this can be “extremely dangerous” for aircraft that are landing.
UFO hunter Alan Ferguson agreed with Jackson’s characterization of the danger. Ferguson lives in Acacia Hills, about 35 miles from Darwin, capital of the Northern Territory. His website, UFOterritory.com.au, contains videos and descriptions of sightings, including some videos of lasers being used to contact or power up UFOs.
Ferguson noted that he and his UFO-hunting associates are “very professional ... and can see the difference between a UFO and a plane ... Especially when they just appear and then move off then stop again, no planes do that.” He said persons who do aim at aircraft are “idiots” and should be prosecuted.
On January 4 2014, laser pointers were aimed at aircraft landing at Darwin International Airport. Ferguson said neither he nor visiting associates used lasers during that time.
Persons who shine a laser pointer at aircraft in the Northern Territory can be jailed for up to four years.
Two frames from a YouTube video shot January 4 2014 by Peter Maxwell Slattery, using a night vision monocular. The first frame shows Slattery aiming a laser at a dot moving steadily across the sky from right to left. The next frame is from a few seconds later and shows the “power up” effect. A YouTube search for “UFO laser pointer” brings up numerous videos with titles such as “UFO’s respond to laser pointers” and “UFO inspects my laser pointer”.
The company’s free “Evo” app is available on Apple iOS and Android app stores. A smartphone connects to the Evo laser either using a cable from the audio output jack, or wirelessly using an optional $40 Bluetooth module that attaches to the laser. Once connected, the app allows remote control of the laser’s output power, and of its flashing frequency. (Although anyone can download the app, the software does not appear to run unless connected to a Wicked E4 series laser such as the Evo.)
The software code is available as open source, so that hobbyists can create their own software to custom-control the Evo.
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Sean Goebel, a graduate student in astrophysics, has produced a 3-minute time-lapse video showing observatories at Mauna Kea, Hawaii, shooting lasers into the night sky. By analyzing how the beam is distorted by the atmosphere, a telescope’s mirror can be counter-distorted in order to obtain sharper images for astronomers.
A still frame from the video. Two telescopes are simultaneously observing the same spot in the Milky Way, using lasers to help give a sharper image.
Goebel writes about the lasers:
“A typical laser pointer that you might use to point at stuff/exercise your cat is about 5 mW. That's five one-thousandths of a watt. Not a whole lot of power. And yet it's enough to blind airplane pilots. The lasers on the telescopes are in the range of 15-40 watts. The FAA calls a no-fly zone over the area when a laser is in use, and two people have to stand around outside in the freezing temperatures and watch for airplanes. Each of them has a kill switch to turn off the laser in case an airplane comes near.”
“Additionally, the telescope has to send its target list to Space Command ahead of time. Space Command then tells them not to use the laser at specific times, ostensibly to avoid blinding spy satellites. However, you could calculate the spy satellite orbits if you knew where they were at specific times, so Space Command also tells the telescope to not use the laser at random times when no satellites are overhead.”
To clarify, the FAA does not have a no-fly zone, but instead issues a “Notice to Airmen” or NOTAM about the laser operations. It is not illegal to fly over the area. Fortunately, at Mauna Kea’s location and altitude only a couple of flights per month fly at night within the laser-affected airspace over the mountain. At one telescope, planes get close enough to the beam to cause a shutoff once every year or twin.
Automated aircraft-detection systems are slowly being tested and phased in, since the cost of having humans watch the skies all night at Mauna Kea’s altitude (13,700 feet) is about $600,000 per year.
The video, “Mauna Kea Heavens”, can be seen at Sean Goebel’s website, which also has more information about adaptive optics lasers and how the video was made. Additional information on aircraft frequency and spotting techniques is courtesy Paul Stomski of the Keck Observatory. A story about Keck’s aircraft protection system appears online in Ascend magazine.
The laser pointer coming from lower left leaves a trail of falling “stars,” while the laser coming from the right triggers a glow on a ceiling beam plus a video to play on the ceiling.
The installation, Archifon II, was created by artists Tomáš Dvorák and Dan Gregor.
From Archifon, which has an embedded video of the installation shown above, Archifon II, as well as the first Archifon.
An aerial view, as seen on Egyptian network Capital Broadcasting Center, gives an idea of what the lasers looked like approaching Tahrir Square. In this scene, there is one blue beam and roughly 30 green beams.
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There have been no reports of injuries to the air crews, or of the laser light causing the pilots to lose control. [UPDATE, July 8 2013: A first-person account states that the pointers were friendly, intended to “greet” the army pilots who at this point were on the side of the protesters.]
Lasers in the 1 watt range have been widely available since the mid-2010 introduction of the Wicked Laser Spyder III Arctic blue laser. This is the first handheld 3 watt laser that LaserPointerSafety.com has been aware of.
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To see the video, click this link to YouTube. Following this link should also lead to the bonus content videos.
To get a flavor of the training video, click the “Read More…” link below for a list of selected excerpts and interesting statements.
Illegal imports of laser pointers explode - 24 July 2012
Customs and Border Protection is warning travellers and online shoppers about Australia’s tough laws prohibiting the import of laser pointers.
This follows a dramatic increase in the number of these dangerous items being seized by officers at the border.
In the past year, the number of laser pointers seized by Customs and Border Protection officers at the Sydney International Mail Centre alone has increased by close to 60 per cent, from around 9,000 to over 14,000.
Australian import officers spill out a container full of confiscated packages of illegally-imported laser pointers.
Importing laser pointers greater than one milliwatt in intensity is prohibited in Australia without a permit.
“The sheer volume of these importations suggests that people do not understand the threat these items pose to safety, particularly to commercial aircraft,” said National Manager Cargo Operations, Jagtej Singh.
Customs and Border Protection officers are trained to detect prohibited and restricted items from the millions of items which arrive each week.
“If you try and import laser pointers without a permit, there’s a high possibility they’ll be found by Customs and Border Protection, seized, and you may even face fines of up to $275,000.”
Customs and Border Protection has produced a video clip outlining the risks being taken by people who inadvertently or deliberately breach the laws on laser pointers.
It can be viewed on the agency’s YouTube channel.
According to this video, “Customs officers screen all incoming mail imported into Australia, and items such as laser pointers WILL show up on X-ray.”
Media enquiries: Customs and Border Protection Media (02) 6275 6793
From Australia Customs and Border Protection
Laser pointers are available for as little as $4 at many beachfront stores catering to tourists.
The president of a Myrtle Beach helicopter tour company says that his aircraft are hit “two, three times a week, sometimes more.” He says the increase makes him nervous for his pilots and clients. He says there is no education for laser pointer buyers about the potential hazard.
Click for video interview with Huffman Helicopter president Jeremy Bass.
Two-frame animated GIF showing bright and dim light from the Lozano Observatory (center) near the city of San Antonio (left). North is to the right in this photo from the International Space Station, taken by astronaut Don Pettit. Click on photo for a larger version.
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The spotlights were flashed at the ISS by holding plywood sheets in front of the lights every two seconds. This procedure can be seen in the video below.
The animated GIF above shows a bright blue light alternating with a dim light. The bright light is almost certainly from the spotlights. The bluish tint may be an artifact of oversaturating the camera’s sensor. Astronaut Don Pettit reported that the bright light appeared white, and the dim light appeared blue. He wrote “We could only see the laser when the white light was off and not all the time.” (E.g., the white spotlights overpowered the blue laser.) He added, “It was like there were tracking issues with the laser to keep it on target.”
The dim light in the animated GIF may be the laser only, or it may be light from the spotlights that wasn’t fully blocked by the plywood sheets. The astronomers will be working with Pettit, trying to pin down exactly how visible the laser light was.
DragonMart in Dubai claims to be “the largest trading centre for Chinese products outside mainland China,” with almost 4,000 shops. A Gulf News reporter found shops selling lasers under-the-counter for AED 40 to AED 80 ($11-$22). An internet search turned up lasers for sale in Dubai and Abu Dhabi around AED 500 ($136) that were described with terms such as “draw a line in the sky,” “extremely bright green,” and could cause “permanent eye damage”.
The article noted that United Arab Emirates officials have said that illegal use of lasers could lead to fines and jail time.
From GulfNews.com and DragonMart. We have found two articles about youths in Abu Dhabi being arrested after aiming lasers at a helicopter, in June 2010 and in October 2007. Video of the June 2010 incident, uploaded by the Abu Dhabi Police, is available on YouTube (click the photo to go to the YouTube page).
Co-sponsor Sam Arora said “We need this law … we’re talking about potential death.” The Maryland State Police testified in support of the bill at a February 7 2012 hearing that “the results [of a laser incident] could be deadly.” A WJZ TV news report said “Blinding a pilot at night is a good way to kill people.”
The bill only applies to laser pointers, defined under Maryland law (Title 3, Subtitle 8, Section 3-806) as any device that emits visible laser light. There are exemptions for lasers used for flight testing for the Federal Aviation Administration, the Department of Defense and the Department of Homeland Security.
The bill was introduced January 23 2012, and had its first reading on February 7. A companion Maryland Senate bill is expected to be introduced soon.
From Essex-Middle River Patch, CBS Baltimore WJZ, and the Maryland legislative information website. The full text of the bill is here; the Maryland definition of laser pointer is here.
Editorial note from LaserPointerSafety.com: A Maryland state police paramedic gave an erroneous demonstration to reporters purporting to show how a laser can be a hazard to aircraft. In a hangar, he aimed a red laser pointer at a helicopter windscreen only a few yards away. The resulting (grossly inaccurate) video shows a tiny red dot on the windscreen and in the aircraft. This is NOT what happens in a laser-aircraft incident. Instead, the light would be many inches across, even at low, helicopter-hovering altitudes of many hundreds of feet. The windscreen would further spread the light so that there would be a wide area of glare. In other words, the hazard is not a pinpoint that can go into one’s pupil, but a large “blob” of light that can cause temporary flashblindness, glare or distraction. This is an example of how laser hazards close up (within a few feet or yards) are very different from laser hazards to aircraft hundreds or thousands of feet away.
KABC quoted the Glendora regional police helicopter tactical flight officer who was illuminated as saying “The laser could cause [eye] damage, and there’s a potential for the helicopter to crash.” The report said he and a pilot were recently trained by the FBI in how to handle a laser attack and how to track down a suspect.
Laser incidents are rising both nationwide and at local airport Los Angeles International (LAX), stated the report. It concluded by reminding the public that “any offense jeopardizes the safety of everyone.”
This dreidel projects two laser dots, creating two circles when spun (insert photo). The listing above is from the U.S. Amazon.com website.
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The news story points out that laser pointers can cause permanent vision damage. In addition, the story says the laser is sold “without a filter,” probably meaning without an infrared (IR) filter. IR light can damage the retina -- like visible light -- but also could damage the cornea.
The video highlights Justin Stouder, a St. Louis-area resident who was arrested in April 2010 for aiming at a police helicopter. He apologized at a news conference in July 2011 intended to publicize the illegality and hazards of lasers aimed at aircraft.
The FBI also released video excerpts of the Stouder laser incident and his subsequent identification by the helicopter and arrest. The incident/arrest video was about 10 times as popular on YouTube, with over 225,000 views:
The press release, and a transcript of the video, are below (click on the Read More… link).Click to read more...
- Sales to minors are prohibited.
- Possession by minors within town limits is prohibited.
- It becomes illegal to shine pointers on persons, streets, bays, sidewalks or the boardwalk.
- Stores must post conspicuous signs notifying prospective purchasers of the town’s laser pointer law.
- Stores must provide a written copy of the town’s law to anyone purchasing a pointer.
The action is in response to an “out of control” situation in the resort city (see story here).
News story from WMAR covering the laser pointer problems and resulting law
From WBOC 16
Some of the more interesting quotes:
- Pilot Kevin Medlock: "It's so brilliant, it takes away part of your vision for a few minutes at least. We fly an aircraft, 148 passengers, making an approach to landing at 170 miles per hour. The consequences of someone shining a laser in my eyes at that stage of flight isn't worth bearing the consequences." Medlock was hit by laser beams twice in one month.
- "What's worrying experts is the rate at which the problem is growing:" 29 U.K. attacks in 2007, 206 attacks in 2008, and 461 in 2009 (through September).
- (video of teen walking into court) "This man said he was trying to see how far his laser could reach. Dean Bottomley was sent to jail."
- Captain Bob Jones, U.K. Civil Aviation Authority: "We're trying to raise the awareness of the general public, rather than worry or frighten them."
From BBC News
1: Police helicopter is targeted by laser pointer on the ground. 2: Helicopter crew use Laser Event Recorder to locate pointer via GPS, and record its wavelength. 3: GPS details enable helicopter’s thermal (infrared) camera to find suspect, and send police patrol on the ground to arrest the person.
In addition, the UK’s Civil Aviation Authority is planning new laws prohibiting shining a laser at an aircraft. Currently, prosecutors have to prove that the laser user “recklessly or negligently endangered an aircraft”.”
BBC quotes Bob Jones, head of flight operations at the CAA: “"To those individuals targeting aircraft with laser devices the message is clear -- don't. You will be caught and you will be prosecuted and you could spend up to five years in prison. These things are not toys, they pose a serious risk to all flight safety."
Many more details, including photos and a video of a helicopter finding a laser perpetrator, are at the BBC News website.
On Friday, Feb. 20, 2009 alone there were reports of incidents in Salt Lake City and Ogden, Utah; Lake Charles, Louisiana; Orlando, Florida; and Burbank and San Jose, California. On Sunday, Feb. 22, 12 different jetliners landing in Seattle were illuminated by an unknown person with a laser pointer.
Information from a CNN story on the Feb. 22 Seattle attacks; see paragraphs 6 and 7. There is also a video version of this story at CNN’s website.
Also, there is a related print story from the CBC website. It does not have the same voiceover as the video report, but does go over similar points, including this one:
"We don't want this to become a bigger hobby — a bigger, stupid hobby," said Serge Beaulieu, spokesman for the Air Canada Pilots Association.