Binocular having a folding bridge
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United States of America Patent
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Sep 27, 2016
Grant Date -
Jan 15, 2015
app pub date -
Jul 14, 2014
filing date -
Jul 12, 2013
priority date (Note) -
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Abstract
A binocular has a folding bridge for adapting the distance between the eyepieces to the interpupillary distance of the eyes of the user. A synchronous focusing of the two telescopes is brought about via a differential gear assembly which drives respective spindle drives for corresponding ones of the two telescopes. The conversion of the rotational movement into an axial linear displacement of the focusing element of the optics occurs only at the end of the corresponding spindle drive.
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