CASS TEST
For testing the glasses resistance to chemical and physical. |
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METHOD
The corrosion agent induced by atmospheric and badily agents (eg. sweat), is tested by submitting then lens to an acid environment. |
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TEST CONDITIONS
Acetic Acid
Sodium Chloride
Dehydrated Copper Chloride |
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DROP BALL TEST (DBL) - TEST ON THE LENSES CAPACITY TO WITHSTAND VIOLENT SHOCKS.
For testing the glasses resistance to chemical and physical. |
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METHOD
Impact of the free-falling steel ball on the lens. |
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TEST CONDITIONS
Steel ball diameter 16mm falling at height 1.3mm and hit the lens surface. We even tried on a bigger steel ball at a higher height. |
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ABRASION AND SCRATCH TEST
For testing the lenses capacity to withstand mechanical stresses. |
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METHOD
Abrasive rubbers and graphite pencil leads of increasing hardness are applied. Then the state of wear and tear on the lens is analyzed. |
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