Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2007-07-17
2007-07-17
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S112230
Reexamination Certificate
active
10313197
ABSTRACT:
An optical disk apparatus includes a motor to rotate an optical disk and an optical head to apply light to the optical disk. The optical head includes a light source to emit the light to be applied to the optical disk, and a collimating lens to receive and collimate the light emitted by the light source. The collimating lens has an optical axis. The optical head also includes a support wall to support the collimating lens at a particular position. The support wall is configured to provide a gap between the collimating lens and the support wall to enable the collimating lens to be adjusted from an initial position to the particular position. The adjustment involves at least a movement in a direction that is perpendicular to the optical axis of the collimating lens. The optical head further includes an objective lens that is configured to receive the light from the collimating lens in order to apply the light to the optical disk.
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Kamisada Toshimasa
Kitada Yasuo
Konishi Yoshiro
Tachibana Susumu
Danielsen Nathan
Hitachi , Ltd.
Townsend and Townsend / and Crew LLP
Young Wayne
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