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US 7,626,894 B2Granted
Heat assisted magnetic recording light delivery with fixed laser and rotating mirror
AssigneeSeagate Technology LLC
InventorsMark David Bedillion, Patrick Breckow Chu, Kevin Arthur Gomez, Tim Rausch, Edward Charles Gage
Life of this patent
Estimating the term…
Abstract
An apparatus comprises a moveable arm for positioning an optical transducer adjacent to a storage medium, a stationary light source, and a moveable mirror mounted at a pivot axis of the arm for reflecting light from the light source to the optical transducer. An actuator can be provided for rotating the moveable mirror through an angle of about one half of an angle of rotation of the moveable arm.
Claims16
An apparatus comprising:
- a moveable arm for positioning an optical transducer adjacent to a storage medium;
- a stationary light source;
- a moveable mirror mounted at a pivot axis of the arm for reflecting light from the light source to the optical transducer;
- and
- an actuator for rotating the moveable mirror through an angle of one half of an angle of rotation of the moveable arm, wherein the actuator comprises:
- a bearing having an inner race and an outer race;
- a first magnet coupled to the inner race:
- a second magnet coupled to the outer race;
- a third magnet coupled to a first end of the mirror and positioned between the first and second magnets, wherein poles of the third magnet are oriented opposite to poles of the first and second magnets;
- a fourth magnet coupled to the inner race;
- a fifth magnet coupled to the outer race;
- and
- a sixth magnet coupled to a second end of the mirror and positioned between the fourth and fifth magnets, wherein poles of the sixth magnet are oriented opposite to poles of the fourth and fifth magnets.
10 more elements
An apparatus comprising:
- a moveable arm for positioning an optical transducer adjacent to a storage medium;
- a stationary light source;
- a moveable mirror mounted at a pivot axis of the arm for reflecting light from the light source to the optical transducer;
- and
- an actuator for rotating the moveable mirror through an angle of one half of an angle of rotation of the moveable arm, wherein the actuator comprises:
- a bearing having an inner race and an outer race;
- a first spring connected between the inner race and the outer race;
- a second spring connected between the inner race and the outer race;
- and
- said mirror coupled to an intermediate point on each of the first and second springs.
7 more elements
An apparatus comprising:
- a moveable arm for positioning an optical transducer adjacent to a storage medium;
- a stationary light source;
- a moveable mirror mounted at a pivot axis of the arm for reflecting light from the light source to the optical transducer;
- and
- an actuator for rotating the moveable mirror through an angle of one half of an angle of rotation of the moveable arm, wherein the actuator comprises:
- a bearing having an inner race and an outer race;
- a ring coupled to the mirror;
- a first plurality of springs connected between the ring and the inner race;
- and
- a second plurality of springs connected between the ring and the outer race.
7 more elements
Dependencies are inferred from the claim text.