| US 7,535,808 B2 | ||
| Tilt control method and optical disc apparatus | ||
| Tsutomu Ishimoto, Saitama (Japan); and Kimihiro Saito, Saitama (Japan) | ||
| Assigned to Sony Corporation, Tokyo (Japan) | ||
| Filed on Jan. 24, 2005, as Appl. No. 11/39,805. | ||
| Claims priority of application No. 2004-035814 (JP), filed on Feb. 12, 2004; and application No. 2004-292426 (JP), filed on Oct. 05, 2004. | ||
| Prior Publication US 2005/0180283 A1, Aug. 18, 2005 | ||
| Int. Cl. G11B 5/58 (2006.01) | ||
| U.S. Cl. 369—53.22 [369/124.12] | 11 Claims |
| 1. A tilt control method comprising:
causing a light gathering element, positioned facing a disc recordable with a signal, to come into contact with the disc,
wherein the light gathering element is configured to gather light irradiated from a light source as near field light at a
position where a distance to the disc constitutes a first distance; and
controlling tilting of the light gathering element with respect to a signal recording surface of the disc in a state where
the light gathering element makes contact with the disc.
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