Observation device with a range finder
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United States of America Patent
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Aug 1, 2017
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N/A
app pub date -
Jul 7, 2016
filing date -
Jan 31, 2008
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Abstract
The invention describes an observation device, having two tubular observation parts, wherein the longitudinal axes of the observation parts in the region of the ocular sides are spaced apart by a distance of at least 54 mm. At least one observation part has a flared portion on an external side, wherein the flared portion is located inside a subsection of between 20% and 80% of an overall length of the observation part. The flared portion lies in an annulus section having a normal distance to the optical axis of the objective of between 130% and 250% of the radius the objective lens.
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