Laser melted safetey goggles

Bluefan said:

It's like claiming your warranty of the crumple zone of your car because it broke when you tested it.

The EN 207 certifications requires that the eyewear keeps it's rated protection for a 10 second direct exposure.

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I wish the ANSI certification were less opaque on what its rated protection really means such as that in EN207. The OD rating is supposed to encapsulate all the information in a simple guideline, but I'm not sure how it corresponds to the EN specification.

Does it actually specify how long glasses need to last before a certain power density burns through them?

For realisitc use its probably not very important though - if you get hit in the eye by a 1 watt 445 that will still be very uncomfortable while wearing OD3-OD4 glasses. I don't think there is a realistic scenario where you would allow that to continue for more than a second (or however fast you can blink).

Depending on goggles not to melt is like depending on impact protection glasses while getting shot at by a steam of sharpnell for all eternity.

Benm said:

Does it actually specify how long glasses need to last before a certain power density burns through them?

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The OEM goggles are suppose to protect for ~10 seconds. Not sure at what power though.

Glad to see you back TJ.

Glenn

Glad to be back Glenn. :beer: