Focus adjusting device for binocular

Details Focus adjusting device for binocular Focus adjusting device for binocular

1983-09-16

1985-10-08

Henry, Jon W.

350555, G02B 704, G02B 2300

Patent

active

045456569

ABSTRACT:
This focus adjusting device comprises a center shaft and being formed with a horizontal through hole in its lower part, a lever cam made of cylindrical shaft and being formed with a screw thread portion in its inner cylinder, and said lever cam being inserted into the inner cylinder of the center shaft and an adjusting knob being inserted into an outer cylinder of the center shaft, whereby the lever cam and the adjusting knob are interlockingly connected by a set screw through the horizontal hole of the center shaft, and the lever shaft is screwed to the screw thread portion of the lever cam at its screw thread portion, and the lever shaft supports an eyepiece lens cylinder.

REFERENCES:
patent: 4066329 (1978-01-01), Van Exel
patent: 4470671 (1984-11-01), Ishida

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