Position sensor assembly and optical device including the same

摘要

Position sensor assemblies having compact structures and capable of precisely sensing a position change, and optical devices including the same are disclosed. A position sensor assembly is provided that includes: a sensing unit that outputs a signal varying as a magnetic force varies; and a magnet spaced apart from the sensing unit and i movably disposed with respect to the sensing unit, and comprising protrusion units of opposite polarities that protrude from each end portion of the magnet in one surface of the magnet toward the sensing unit.

主权项

1. A position sensor assembly comprising:
a sensing unit that outputs a signal varying as a magnetic force varies; and a magnet spaced apart from the sensing unit along a first axis and movably disposed linearly with respect to the sensing unit along a second axis that is perpendicular to the first axis, and comprising protrusion units of opposite polarities that protrude along the first axis from first and second end portions of the magnet on a surface of the magnet facing toward the sensing unit such that as the magnet is moved linearly along the second axis a distance between the sensing unit and the surface of the magnet varies along the first axis due to the presence of the protrusion units.