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Old 12-03-2015, 10:17 AM #17
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Default Re: new 1.4w laser - will any safety glasses do?

Laser safety goggles are designed to protect your eyes by reducing the amount of light from lasers with specific wavelengths to a safe level while transmitting enough light for good vision.


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Old 01-03-2016, 06:52 PM #18
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Question Re: new 1.4w laser - will any safety glasses do?

I only have WL Glasses only good for 405nm to 450nm to 520nm i dont have any for 600'snm i never use the 600nm's in the house its to bright. so it deepens what laser you have tare not all the same. !! not all glasses will work,
tare is a Search button on the left site you could find more info this question is bin ask over and over
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Why wouldn't you point a laser at the sky?  - > I Say
Because the death star that is floating above earth secretly... may think of it as a challenge and shoot their laser at us in return.... Do you really want that?
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( Alien Laser )

Last edited by Alien Laser; 01-13-2016 at 12:18 AM.
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Old 02-19-2016, 07:07 AM #19
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Default Re: new 1.4w laser - will any safety glasses do?

Alien laser, were you abducted never to return?
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Angular Size Calculator; use with diode angle of radiation specification to calculate the needed lens diameter for a given FL:
http://www.1728.org/angsize.htm

Divergence to spot size calculator: http://tinyurl.com/spotsize - 1 mRad is about .057 degrees which from the earth would expand to be ~10% the diameters of the moon or sun at their distances.

Divergence Calculator: http://www.pseudonomen.com/lasers/ca...alculator.html - Measure your lasers beamwidth at 1 foot & then at a further distance to calculate the divergence.

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

Laser Power Density Calculator: http://www.ophiropt.com/laser-measur...ity-calculator

How to build a laser beam expander to reduce divergence: http://tinyurl.com/BeamExpander

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

YAG Power Calculator, i.e. convert ns @ mJ to peak power in watts http://tinyurl.com/YAG-Pulse

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