JP2006260707A5 - - Google Patents

Download PDF

Info

Publication number
JP2006260707A5
JP2006260707A5 JP2005079286A JP2005079286A JP2006260707A5 JP 2006260707 A5 JP2006260707 A5 JP 2006260707A5 JP 2005079286 A JP2005079286 A JP 2005079286A JP 2005079286 A JP2005079286 A JP 2005079286A JP 2006260707 A5 JP2006260707 A5 JP 2006260707A5
Authority
JP
Japan
Prior art keywords
driving
recording
optical information
spherical aberration
reproducing apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2005079286A
Other languages
Japanese (ja)
Other versions
JP2006260707A (en
JP4366326B2 (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2005079286A priority Critical patent/JP4366326B2/en
Priority claimed from JP2005079286A external-priority patent/JP4366326B2/en
Publication of JP2006260707A publication Critical patent/JP2006260707A/en
Publication of JP2006260707A5 publication Critical patent/JP2006260707A5/ja
Application granted granted Critical
Publication of JP4366326B2 publication Critical patent/JP4366326B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Claims (4)

複数の記録層を有する光記録再生媒体の夫々の前記記録層に対し、光源からの光束で集光スポットを生成するための対物レンズと、前記光源と前記対物レンズの間の光路中に配置され、選択された前記記録層に応じて前記光束に球面収差を発生させるための球面収差発生手段と、前記対物レンズを含む光学ヘッドを前記媒体の半径方向に移動させるための第１の駆動手段とを有する光学的情報記録再生装置において、
前記集光スポットを現在アドレス位置から異なる前記記録層上の目的アドレス位置へアクセスする際に、前記第１の駆動手段の駆動中に前記球面収差発生手段を駆動させることを特徴とする光学的情報記録再生装置。 For each recording layer of an optical recording / reproducing medium having a plurality of recording layers, an objective lens for generating a condensed spot with a light beam from a light source, and an optical path between the light source and the objective lens are disposed. Spherical aberration generating means for generating spherical aberration in the light beam according to the selected recording layer, and first driving means for moving an optical head including the objective lens in the radial direction of the medium; In an optical information recording / reproducing apparatus having
Optical information, wherein the spherical aberration generating means is driven during driving of the first driving means when the focused spot is accessed from a current address position to a different target address position on the recording layer. Recording / playback device. 前記光学的情報記録再生装置は、前記集光スポットを前記記録層間で移動させるための第２の駆動手段を有し、前記球面収差発生手段及び前記第１の駆動手段の駆動開始後に、前記第２の駆動手段が駆動されることを特徴とする請求項１に記載の光学的情報記録再生装置。   The optical information recording / reproducing apparatus includes a second driving unit for moving the focused spot between the recording layers, and after the driving of the spherical aberration generating unit and the first driving unit is started, 2. The optical information recording / reproducing apparatus according to claim 1, wherein two driving means are driven. 前記光学的情報記録再生装置は、前記集光スポットを前記記録層間で移動させるための前記第２の駆動手段を有し、前記球面収差発生手段及び前記第１の駆動手段の駆動に先立って、前記第２の駆動手段が駆動されることを特徴とする請求項１に記載の光学的情報記録再生装置。   The optical information recording / reproducing apparatus has the second driving means for moving the focused spot between the recording layers, and prior to driving the spherical aberration generating means and the first driving means, 2. The optical information recording / reproducing apparatus according to claim 1, wherein the second driving means is driven. 前記球面収差発生手段及び前記第１の駆動手段の駆動終了後に、前記第２の駆動手段が駆動されることを特徴とする請求項２に記載の光学的情報記録再生装置。3. The optical information recording / reproducing apparatus according to claim 2, wherein after the driving of the spherical aberration generating means and the first driving means, the second driving means is driven.
JP2005079286A 2005-03-18 2005-03-18 Optical information recording / reproducing apparatus Expired - Fee Related JP4366326B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005079286A JP4366326B2 (en) 2005-03-18 2005-03-18 Optical information recording / reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005079286A JP4366326B2 (en) 2005-03-18 2005-03-18 Optical information recording / reproducing apparatus

Publications (3)

Publication Number Publication Date
JP2006260707A JP2006260707A (en) 2006-09-28
JP2006260707A5 true JP2006260707A5 (en) 2007-08-09
JP4366326B2 JP4366326B2 (en) 2009-11-18

Family

ID=37099756

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005079286A Expired - Fee Related JP4366326B2 (en) 2005-03-18 2005-03-18 Optical information recording / reproducing apparatus

Country Status (1)

Country Link
JP (1) JP4366326B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6118897B2 (en) * 2013-05-22 2017-04-19 株式会社日立製作所 Optical recording device
US10939735B2 (en) 2016-09-21 2021-03-09 Carrier Corporation Cooling unit for generating cooled area
US11952794B2 (en) 2018-02-02 2024-04-09 Carrier Corporation Cooling unit for generating cooled area
WO2019150154A1 (en) 2018-02-02 2019-08-08 Carrier Corporation Air cooling unit
CN111770700A (en) 2018-02-02 2020-10-13 开利公司 Cooling system
WO2019150148A1 (en) 2018-02-02 2019-08-08 Carrier Corporation Air cooling unit

Similar Documents

Publication Publication Date Title
JP4973474B2 (en) Optical disc apparatus and optical information recording method
JP5541023B2 (en) Objective lens, optical pickup, optical drive device
JP2008251134A5 (en)
JP2012059335A5 (en)
JP2006260707A5 (en)
TW200929195A (en) Recording and reproducing method, recording and reproducing device and record carrier
JP2000207750A5 (en)
JP2006236513A5 (en)
JP2002358648A5 (en)
US7978569B2 (en) Optical disc device and focus control method
JP2009252287A (en) Volume type information recording medium, information recorder, information reproducer and optical pickup
TW200921660A (en) Optical pickup, optical information recording device, optical information recording method, optical information reproduction device, optical information reproduction method and optical information recording medium
JP4483898B2 (en) Recording apparatus, reproducing apparatus, recording method, reproducing method, and recording medium
TW201108221A (en) Guide-layer separated optical recording medium, optical recording medium drive apparatus, and recording layer access method
US7505379B2 (en) Intelligent layer jump method
US20080123479A1 (en) Apparatus and method for recording/reproducing holographic data and holographic data storage medium
EP1691360A3 (en) Optical unit and optical pickup apparatus
JP2008171534A5 (en)
JP2009093748A (en) Device and method for bca recording
JP2011192322A (en) Optical disk apparatus, optical disk, recording method, and reproduction method
JP2005149723A5 (en)
JP2006190423A (en) Optical recording and reproducing method, optical pickup apparatus, and optical recording and reproducing apparatus
JP2009266285A5 (en)
JP2005149606A (en) Optical pickup
JP2009289350A (en) Optical information recording/reproducing apparatus