Rotary drive apparatus
AssigneeNidec Corporation
InventorYoichi Sekii
Life of this patent
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Abstract
This rotary drive apparatus is arranged to rotate a flywheel arranged to support an optical component arranged to reflect incoming light coming from a light source or allow the incoming light to pass therethrough, and includes a motor including a rotating portion; and the flywheel, the flywheel being supported by the motor and arranged to rotate about a central axis extending in a vertical direction. The flywheel includes a plate-shaped accommodating portion in which the optical component is arranged; a bottom surface arranged at a bottom portion of the accommodating portion, and arranged to slant with respect to at least one of two opposed side surfaces of the optical component; and a base surface arranged to be in contact with at least a portion of another one of the two opposed side surfaces of the optical component.
Claims9
A rotary drive apparatus arranged to rotate a flywheel arranged to support a lens arranged to allow incoming light coming from a light source to pass therethrough, the rotary drive apparatus comprising:
- a motor including a rotating portion;
- and
- the flywheel, the flywheel being supported by the motor and arranged to rotate about a central axis extending in a vertical direction;
- wherein
- the flywheel includes:
- a plate-shaped accommodating portion in which the lens is arranged;
- a bottom surface arranged at a bottom portion of the accommodating portion, and arranged to slant with respect to at least one of two opposed side surfaces of the lens;
- and
- a base surface arranged to be in contact with at least a portion of another one of the two opposed side surfaces of the lens;
- the lens allows reflected light obtained by reflection of incoming light in the flywheel to pass therethrough;
- and
- the base surface is a radially outermost surface positioned radially outward from the lens and defines a portion of the accommodating portion, the base surface overlaps the lens when viewed from a radial direction and is perpendicular to a lower surface of the flywheel.
A rotary drive apparatus arranged to rotate a flywheel arranged to support an optical component arranged to reflect incoming light coming from a light source or allow the incoming light to pass therethrough, the rotary drive apparatus comprising:
- a motor including a rotating portion;
- and
- the flywheel, the flywheel being supported by the motor and arranged to rotate about a central axis extending in a vertical direction, wherein
- the flywheel includes:
- a plate-shaped accommodating portion in which the optical component is arranged;
- a bottom surface arranged at a bottom portion of the accommodating portion, and arranged to slant with respect to at least one of two opposed side surfaces of the optical component;
- and
- a base surface arranged to be in contact with at least a portion of another one of the two opposed side surfaces of the optical component;
- and
- the bottom surface is a curved surface.
Dependencies are inferred from the claim text.