PPRuNe Forums - View Single Post - Virgin Atlantic flight from London to NY returns after pilot hurt in laser incident
Old 15th Feb 2016, 13:41
  #69 (permalink)  
Fortissimo
 
Join Date: Jun 2008
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Tourist (#46), I don't think you can draw conclusions from the Egypt experience - that crew may well have been using laser goggles or glasses, but we don't know.

The majority of laser devices are Class 1/low power and will not do damage unless there is prolonged exposure. The problem comes with the devices that are either not as advertised or actually deliver the claimed power output. Any laser capable of bursting a balloon or lighting a match (a common sales claim) is capable of producing irreparable eye damage; what sort of damage will depend on whether you look directly at the beam or it enters your eye at an 'off-boresight' angle.

There have been plenty of incidents of eye damage to children, not all of it serious but not all of it reported or treated either. It also depends where in the world you live. A&E is not full of laser casualties, true, but that is not the same as knowing there are no casualties. According to one report I read (from an NHS consultant), there were 9 youngsters in Sheffield with life-changing eye injuries in 2013 alone. There will be more.

In the meantime we need to stop people having a go at aircraft. Googles and dyes in windscreens are just about OK as defences but some of them alter depth perception, some make elements of PFDs hard to read, and all of them notch out chunks of the red and green wavelengths. LEDs have tighter radiant bandwidth and are becoming much more common because they are brighter and cheaper to run than conventional incandescent lamps, but the downside is less spectrum to spill around the notched wavelengths produced by goggles/glasses.

The next step needs to be having lasers added to the offensive weapons list, which would give police officers the stop and search powers they need to tackle this problem.
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