- Joined
- Jul 4, 2008
- Messages
- 2,499
- Points
- 113
I'm sure a high power laser will burn a hole through any plastic lens in a relatively short time, no matter how high the quality or OD rating. Remember that most goggles are for momentary protection only, not continuous direct exposure.
Approved lenses (esp. CSA standard) for Class IV must be made of glass and have an OD of +7. Forget buying these for $35, Your looking at $500.00 a pair. Ouch. Polycarbonate is only rated up to Class IIIB.