Invention Grant
US08488427B2 Optical disc apparatus capable of performing recording and/or reproducing of information with reducing aberration 失效
能够以减少像差进行信息的记录和/或再现的光盘装置

  • Patent Title: Optical disc apparatus capable of performing recording and/or reproducing of information with reducing aberration
  • Patent Title (中): 能够以减少像差进行信息的记录和/或再现的光盘装置
  • Application No.: US12010858
    Application Date: 2008-01-30
  • Publication No.: US08488427B2
    Publication Date: 2013-07-16
  • Inventor: Kenji Okamoto
  • Applicant: Kenji Okamoto
  • Applicant Address: JP Osaka
  • Assignee: Funai Electric Co., Ltd.
  • Current Assignee: Funai Electric Co., Ltd.
  • Current Assignee Address: JP Osaka
  • Agency: Morgan, Lewis & Bockius LLP
  • Priority: JP2007-020386 20070131
  • Main IPC: G11B7/00
  • IPC: G11B7/00
Optical disc apparatus capable of performing recording and/or reproducing of information with reducing aberration
Abstract:
An optical disc apparatus in accordance with the present invention includes: a plurality of light sources; an optical system which has at least an objective lens that condenses light beam emitted from the light sources on a recording layer of an optical disc and a collimator lens that is arranged between the light sources and the objective lens; a lens tilting mechanism which tilts the objective lens; a collimator lens driving mechanism which moves the collimator lens along an optical axis direction; and a most appropriate setting deciding portion which decides in a prescribed timing a most appropriate setting about position of the collimator lens and tilting of the objective lens while changing the position of the collimator lens and the tilting of the objective lens utilizing the collimator lens driving mechanism and the lens tilting mechanism.
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