ATTACHABLE OPTICAL ELEMENT ARRANGEMENTS AND METHODS
Described is a kit, an optical insert assembly and a method for attaching an optical insert to a viewing lens of an eye-shielding device. The kit includes an optical insert with an outer perimeter, and a flexible border attachment element with an inner periphery area extending inward of the outer pe...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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