1979-04-03
1981-07-07
Henry, Jon W.
350 47, 350 70, 350 36, G02B 706
Patent
active
RE0306657
ABSTRACT:
The invention contemplates an improved binocular telescope construction of the variety wherein a bridge provides articulated connection of the two telescope systems, so that by folding at least one of these articulated systems back against a side of the bridge, the instrument may be compacted when not in use. The invention is particularly concerned with provision of a single focusing drive for the focusing optical elements of both telescope systems, the drive being operative regardless of the extent of articulated expansion or contraction of the bridge-connected systems. The invention also features provision of such focusing by movement of optical elements contained within the overall telescope-housing length, so that such length does not change in the course of focusing. Various embodiments are described.
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Altenheiner Erwin
Donn Volker
Hornschu Joachim
Jachan Walter
Jung Artur
Carl Zeiss-Stiftung
Henry Jon W.
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