Patent ID: 8169677
Filing Date: 2012-05-01
Classification: G02B

Abstract:
1. A scanner motor comprising: a shaft; a housing having an insertion-hole formed in a center thereof, the shaft being inserted into the insertion-hole; a polygonal mirror mounted on an upper side of the housing and having a through-hole formed in a center thereof in such a way that the shaft penetrates through the polygonal mirror; and a compression spring positioned on an upper side of the polygonal mirror and comprising a V-shaped curved part bent downwardly in such a way that the V-shaped curved part compresses an upper edge of an inner circumferential surface of the polygonal mirror both horizontally and vertically, wherein an inclined surface is formed on an upper edge of a circumferential surface of the polygonal mirror in such a way that the polygonal mirror can be in surface contact with the V-shaped curved part.