Textured retroreflective prism structures and molds for forming same
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United States of America Patent
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-
Aug 3, 2004
Grant Date -
Dec 6, 2001
app pub date -
Jul 9, 2001
filing date -
Sep 28, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Retroreflective prism sheeting is formed in a mold with textured facets and/or windows thereon. Smaller prisms are formed adjacent larger prisms. Optionally, the optical axis of the prisms may be tilted with respect to one another, preferably in a negative direction. The textured facets or windows provide more uniform retroreflected light intensity distribution and whiteness of the sheeting.
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