Push button-type focusing mechanism for binoculars

Details Push button-type focusing mechanism for binoculars Push button-type focusing mechanism for binoculars

1980-07-23

1981-12-22

Henry, Jon W.

G02B 706

Patent

active

043067646

ABSTRACT:
A push button-type mechanism for binoculars which includes a connecting plate having a recessed portion with a bottom and side walls formed in the center portion thereof, the plate at each end thereof being pivotally attached to body tubes having lens frames. A slide frame having inclined surfaces is attached to a lead shaft and positioned in the recessed portion such that one end of the shaft extends slidably through one side wall of the recessed portion. A set of push buttons having shoulder portions and inclined legs are slidably positioned on the inclined surfaces of the slide frame and between the inclined surfaces of the side frame and the perpendicular walls of the recessed portion. A balance spring contacts the shoulder portions of the push buttons. An arm is attached to the extended portion of the lead shaft and the lens frames wherein depression of the buttons causes the lens frames to move to a position of focus on an object being observed.

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