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12-20-2014, 02:26 AM #1
 Junior Member Join Date: Dec 2014 Posts: 1 Rep Power: 0
Bassy
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Join Date: Dec 2014
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Laser Blinding

I was wondering how powerful a laser had to be to be able to blind an eye permanently?
Also how much would the pain be?

I'm /NOT/ thinking of blinding someone or myself, I'm just curious.

12-20-2014, 03:42 AM #2
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Re: Laser Blinding

The amount of laser power that can damage your eyes is explained in the OSHA Technical Manual on laser hazards. The answer is very complex. A more detailed explanation is presented in an article on Laser Safety in Laser Focus World. Standards have been established by the American National Standards Institute (ANSI) and the Food & Drug Administration (FDA) for classifying lasers in incremental ranges of power output as it relates to safety.

https://www.osha.gov/dts/osta/otm/ot...m_iii_6.html#4

http://www.laserfocusworld.com/artic...standards.html
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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

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