Binocular with rotation transmitting system

Details Binocular with rotation transmitting system Binocular with rotation transmitting system

1998-01-28

2000-06-06

Spyrou, Cassandra

Optical: systems and elements

Compound lens system

Telescope

359422, G02B 2300

Patent

active

060726261

ABSTRACT:
A binocular includes first and second swingable bodies respectively accommodating telescope systems. The binocular further includes two drive rings respectively provided to the swingable bodies and an operation knob. A transmission unit is provided to transmit the rotation of the operation knob to the drive rings. The transmission unit includes two pairs of a first gear and a second gear. The first gear and the second gear engage with each other so that a contact point of pitch circles thereof is located on each of the swing axis.

REFERENCES:
patent: 3528724 (1970-09-01), Bertin
patent: 4396257 (1983-08-01), Nakamura
patent: 4616907 (1986-10-01), Nakamura
patent: 5071242 (1991-12-01), Yanagisawa
patent: 5583692 (1996-12-01), Funatsu

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