| US 7,486,597 B2 | ||
| Pick-up angle adjustment mechanism for optical disk apparatus | ||
| Kazuo Urata, Hamamatsu (Japan) | ||
| Assigned to Yamaha Corporation, Hamamatsu-shi (Japan) | ||
| Filed on Dec. 02, 2005, as Appl. No. 11/291,909. | ||
| Claims priority of application No. 2004-350839 (JP), filed on Dec. 03, 2004. | ||
| Prior Publication US 2006/0123439 A1, Jun. 08, 2006 | ||
| Int. Cl. G11B 7/00 (2006.01) | ||
| U.S. Cl. 369—44.32 [369/44.14; 369/53.19] | 10 Claims |
| 1. A pick-up angle adjustment apparatus for adjusting an angle of an optical pick-up mounted in an optical disk apparatus,
the pick-up angle adjustment apparatus comprising:
a first guide shaft that has a first length between a pair of ends thereof for guiding and supporting the optical pick-up;
a second guide shaft that has a second length between a pair of ends thereof for guiding and supporting the optical pick-up,
the second length being different from the first length;
a first adjustment member that is operable for vertically moving one end of the first guide shaft so as to adjust the angle
of the optical pick-up, the first adjustment member being capable of moving the one end of the first guide shaft by a first
distance when the first adjustment member is operated by a given operation amount; and
a second adjustment member that is operable for vertically moving one end of the second guide shaft so as to adjust the angle
of the optical pick-up, the second adjustment member being capable of moving the one end of the second guide shaft by a second
distance when the second adjustment member is operated by the same operation amount as applied to the first adjustment member,
wherein a distance ratio of the first distance and the second distance is set equal to a length ratio of the first length
and the second length.
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