Binocular telescope

Details Binocular telescope Binocular telescope

1975-10-07

1978-03-21

Henry, Jon W.

350 47, 350 70, 350 36, G02B 706

Patent

active

040800431

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.

REFERENCES:
patent: 730972 (1903-06-01), Riglander et al.
patent: 1338241 (1920-04-01), Meling
patent: 1428478 (1922-09-01), Dunne
patent: 2271380 (1942-01-01), Strang et al.
patent: 2811895 (1957-11-01), Jensen
patent: 3076381 (1963-02-01), Dowling et al.
patent: 3484149 (1969-12-01), Becker et al.
patent: 3604779 (1971-09-01), Reinhold
patent: 3712704 (1973-01-01), Sato
patent: 3817594 (1974-06-01), Fischer

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