Soft optical element for use in eye-protecting devices
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United States of America Patent
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Mar 21, 2006
Grant Date -
Oct 13, 2005
app pub date -
Apr 8, 2004
filing date -
Apr 8, 2004
priority date (Note) -
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Abstract
An optical element is disclosed comprising at least one transparent eye-protecting portion comprising a plastic material, preferably having a hardness within a range of about 40 Shore A to about 77 Shore D, as measured according to ASTM Standard D2240, and an elongation at break within a range of about 200% to about 700%, as measured according to ASTM Standard D638.
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