Lens shift mechanism and projector equipped with it

摘要

PROBLEM TO BE SOLVED: To shift a projection lens in a direction orthogonal to a extending direction of a rotation center line of a dial knob with a simple configuration in a lens shift mechanism such as a projector. A lens shift mechanism includes a lens support member 34 that supports a projection lens and can shift in a first direction orthogonal to the optical axis extending direction of the projection lens, and an optical axis extending direction and a first. A first shift member 36 that can move in a second direction orthogonal to one direction, and a first connecting portion 62 and a first connecting portion 62 that are movablely connected to a lens support member 34 in a second direction. The shift member 36 is provided with a second connecting portion 64 that is movably connected in the first direction, and is centered on the swingable connecting member 40 and the first rotation center line extending in the second direction. A first feed screw 38 that is rotatable and has a threaded portion 38b that engages with a screw hole 36d of the first shift member 36, and a first dial attached to the first feed screw 38. Has a knob. [Selection diagram] Fig. 6