Telescope with variable magnification
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United States of America Patent
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Issued Date -
Jul 12, 2007
app pub date -
Dec 20, 2006
filing date -
Dec 21, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A telescope has an optical axis. As seen from an object side, there are provided along the optical axis an objective lens, two lens groups adapted to be shifted along the optical axis independently from one another and having together a variable magnification, an inversion system, and an eyepiece. An aperture stop is provided between the lens groups, and the aperture stop is adapted to be shifted along the optical axis as a function of the axial position of the lens groups.
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