Scanner using a polygonal mirror
AssigneeRicoh Company, Ltd.
InventorShinichi Ozaki
Life of this patent
Estimating the term…
Abstract
A scanner using a polygonal mirror includes a rotor with a magnet mounted thereon, a rotary shaft on which the rotor is mounted, and a stator with a coil facing the magnet at a preselected distance. The rotor is machined in the form of a square pillar having mirror surfaces at sides thereof to thereby form the polygonal mirror. A recess is formed in one major surface of the rotor while the magnet is press fitted in the recess. The scanner with this configuration needs a minimum number of parts, obviates the need for highly accurate adhesion and is durable and easy to produce.
Claims6
A scanner including a polygonal mirror, comprising:
- a rotor with a magnet mounted thereon;
- a rotary shaft on which said rotor is mounted;
- and
- a stator with a coil facing said magnet at a preselected distance;
- wherein said rotor is machined in a form of a square pillar having mirror surfaces at sides thereof to thereby form the polygonal mirror and has a first recess formed in one major surface thereof for press fitting said magnet.
A scanner including a polygonal mirror, comprising:
- a rotor with a magnet mounted thereon;
- a rotary shaft on which said rotor is mounted;
- and
- a stator with a coil facing said magnet at a preselected distance;
- wherein said rotor is machined in a form of a square pillar having mirror surfaces at sides thereof to thereby form the polygonal mirror and has a first recess formed in one major surface thereof for press fitting said magnet and has a projection formed on the other major surface for mating with said recess.
Dependencies are inferred from the claim text.