Lens having a circumferential field of view
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United States of America Patent
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N/A
Issued Date -
Jun 17, 2010
app pub date -
Jan 20, 2005
filing date -
Jan 21, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A lens having an axis of symmetry, including a transparent circumferential surface, circumferentially extending about the axis of symmetry, the transparent surface having optical power in planes which include the axis of symmetry, a first reflective surface, symmetric with respect to the axis of symmetry and being operative to reflect light passing through the transparent surface and a second reflective surface, symmetric with respect to the axis of symmetry and axially spaced from the transparent surface and being operative to reflect light reflected by the first reflective surface.
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