A comprehensive resource for safe and responsible laser use
It is not known if the pointers damaged the drone's camera, rendering it unflyable, or if the operator could still fly the drone but decided to land it.
A video posted by Perseus999 includes this commentary from him or her:
This is the moment a police drones is being forced to crash and land by protesters in Chile using simple pointer lasers to blind the drone.
These protesters didn't use any physical or gun force to bring the drone down. Instead, they used another form of technology: lasers. A lot of bright green laser beams were pointed in unison at the drone, which can be seen moving erratically, before quickly falling down to Earth.
A few theories about how the drone was brought down by the lasers are floating around many social media. Some believe the lasers are powerful enough to melt the plastic on the drone if it is a cheap drone. Some others believe the lasers' lights would blind the drone operator's vision through the camera, and the drone would go into autopilot mode and land as a failsafe. Others think that with that many lasers pointing at the drone, it would overheat and malfunction. Speculations that between 40 to 50 lasers were being pointed at the drone have circulated online, and the video certainly demonstrates that these estimates may be true. If that is the case, that's certainly enough lasers to blind the drone's camera lens.
Videos found from @Emily_Lykos | @Carabdechile
COMMENTARY FROM LASERPOINTERSAFETY.COM: The overheating theories are probably incorrect. Cameras are known to be sensitive to laser light — often much more sensitive than human eyes. So the camera sensor could be damaged, or even if not damaged, causing glare making it difficult or impossible to safely fly.
Via a YouTube search for "Drone with laser pointer"
At about 12:45 am on October 22 2017, the helicopter was providing support to ground units responding to a domestic violence disturbance when it was continuously illuminated by a green laser beam. The tactical flight officer was hit three times in the eyes.
The pilot had momentary flashblindness and lost night vision. The tactical flight officer had watering eyes, discomfort and pain. There was no reported eye injury.
The helicopter broke off from its mission to pursue the laser perpetrator.
The beam came from the driver’s side of a car traveling north on Highway 99 in Fresno. Ground officers pursued Alvarez’s car, which began a high-speed chase. Twice during the chase Alvarez stopped to drop off passengers. The car eventually crashed into a median. Alvarez got out and ran towards neighboring homes. He was apprehended by officers in the backyard of a home after a short foot pursuit.
Alvarez had minor injuries from the crash and was taken to a hospital for treatment. At the hospital, a baggie was found with substances suspected to be marijuana, cocaine and methamphetamine.
Inside the car’s driver side door pocket police found a laser marked “Laser 303” with a green multi-dot beam (perhaps a diffraction grating making a star-field-like pattern) and a danger label.
After an FBI investigation, Alvarez was charged with violating federal law by knowingly aiming the beam of a laser pointer at an aircraft or its flight path. In addition, there were two previous felony warrants out for Alvarez’s arrest on other, unspecified charges.
From a report by Cyrus Farivar of Ars Technica. The criminal complaint filed in the U.S. District Court for the Eastern District of California is here.
UPDATED May 7 2018 — Michael Vincent Alvarez was sentenced to 18 months in prison for the October 22 2017 incident. From KMPH and the Fresno Bee.
Case 1: Johnny Alexander Quenga, 28, of Fresno
On March 5 2015, the Fresno Police Department helicopter Air 1 was illuminated by green laser light about six times over ten minutes. One crew member, who had been illuminated by lasers numerous times in the past, suffered temporary flashblindness, afterimages, a headache lasting several hours requiring pain medication, and dizziness. He said the beam was much brighter than in his past experience. The pilot had a momentary loss of night vision, and flew a wide orbit to avoid the beam. The pilot directed ground officers to the location.
However, a patrol car on the way to the suspect’s home was broadsided at an intersection by a Toyota 4Runner. The Jaws of Life were needed to rescue one of the officers. Both officers in the car were treated at a hospital for serious injuries. The officer driving was knocked unconscious, had upper body and leg injuries, and some chipped teeth. The passenger officer had a broken leg and a fracture in his back that may require surgery. (The 4Runner driver and passenger suffered minor injuries.)
The Fresno Police Department car that was broadsided on the way to arrest a man who aimed a laser pointer at an FPD helicopter. Two officers were seriously injured. Photo from YourCentralValley.com.
When officers finally reached Quenga’s home, they found he was listening to police department radio traffic. He said “he could hear everything the officers were saying and knew they were looking for him and [he] had possibly hidden the laser.” Quenga claimed the laser beam came from a house behind him. He further said he worked as a security guard and knew he could lose his job for misuse of a laser.
US: (Not a laser) Distraction from selfies and maybe camera flash likely cause of fatal crash, NTSB says
Widely reported in the press was the fact that the cell phone camera’s flash function was used during an earlier portion of the flight. (The aircraft made one 6-minute flight around the traffic pattern, landed, took off again, made a left turn, stalled and spiraled into the ground.) As recorded by a second camera, a GoPro, during the 6-minute flight, the cameraphone flash was used “during the takeoff roll, initial climb, and flight in the traffic pattern.”
The NTSB did not state whether the use of the camera flash impeded the pilot’s vision. He was able to successfully complete the first, 6-minute flight despite being flashed multiple times. It was on the second takeoff that the pilot stalled, leading to the spin into terrain.
Click to read more...
Scotland: Community service for ADHD man who lased police helicopter, 8 weeks before copter crashed into pub
The incident occurred on October 1 2013. The helicopter pilot turned the craft away from the beam, to avoid the light. Other crew used infrared cameras to track the perpetrator and direct ground officers to his location. The officers found a laser pen in the possession of Grant Jones, 24, and arrested him.
The same helicopter crashed into a pub in Glasgow on November 29 2013, killing all three on board plus seven persons on the ground. There is no linkage between Jones’ laser illumination and the crash 60 days later, which was caused by both engines flaming out.
Click to read more...
While early reports indicated there may have been an engine malfunction, the paper wrote “... there were also fears the horrific accident could have been caused by a powerful green laser beam from a pen-like device shone into the eyes of the pilot – or even a firearm. There have been an increasing number of near-misses caused by the blinding laser devices in recent months.”
No witnesses or other evidence have thus far emerged to implicate the aiming of lasers at the aircraft as a contributing factor. The Daily Mail said Police Scotland investigators “will ‘retain an open mind.’”
From a December 1 article in the Daily Mail, updated 2:24 EST on Dec. 2.
LaserPointerSafety.com has a selected list of laser/aircraft incidents in Scotland and in the U.K. Additional incidents, in other countries and sorted by various keywords, can be found by clicking the blue category and tag links in the News Index section on the left-hand side of the white part of this page.
UPDATED - December 3 2013: An article in the Scotsman, speculating on causes of the crash, includes this quote: “Charles Newport, consultant for Aviation Network Associates, said: ‘Quite possibly it could be pilot error, that’s the only other factor I can think of. The aircraft could have been flying too low and the pilot could have become disorientated. He could have been blinded by a laser. To me, it seems to be a catastrophe of some sort, unless the pilot had a heart attack. Until they look at the body and carry out pathology tests, and look at the aircraft, there’s little you can do apart from speculate.’”
UPDATED - February 14 2014: The Air Accidents Investigation Branch released a Special Bulletin, stating the accident occurred when both engines flamed out. One of the fuel tanks was empty and the other had 0.4 kg of fuel left in it. From a Wikipedia article about the crash
UPDATED - June 2 2014: An Edinburgh man was sentenced to 240 hours of community service for aiming his green laser pen at the police helicopter on October 1 2013. There is no link between that incident, and the same helicopter crashing into the pub on November 29 2013.
WTVR quoted a nearby resident as saying she heard the crash around 2:30 am, but there were no police on the scene until around 7 am. The road was closed until 2:30 pm while police investigated. The resident said there had been four fatal crashes on the road near her home in the past few years.
Matthew L. Farr
Farr had been charged with one misdemeanor count of interfering with the operation of an aircraft by aiming a green laser beam at a Virginia State Police Cessna 182 patrol aircraft. The pilot had temporary pain, according to a police spokesperson. Farr’s court date had been set for later in September 2013.
From WRIC, WTVR, NBC12.com, and the Richmond Times-Dispatch. The original LaserPointerSafety.com item about Farr’s July arrest is here.
US: UPDATED - Pilot of crashed 777 first says he was blinded by a light; then retracts any vision effects
During a press conference on July 10, the chair of the National Transportation Safety Board revealed the pilot’s statement. Deborah Hersman was asked specifically if it could have been a laser pointed from the ground. She replied “We really don’t know at this point what it could have been. We need to look into it. We need to understand what he’s talking about. We may need to follow up with him.”
Hersman described the flash as only “a temporary issue”, according to the San Francisco Chronicle.
From USA Today (initial story; story about laser hazards), SFGate, and ABC News.
UPDATED July 11 2013: NTSB chair Deborah Hersman gave additional details indicating that the light was not a laser and did not interfere with the pilot’s vision.
Click to read more...