JP2000207766A5 - - Google Patents

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Publication number
JP2000207766A5
JP2000207766A5 JP1999002204A JP220499A JP2000207766A5 JP 2000207766 A5 JP2000207766 A5 JP 2000207766A5 JP 1999002204 A JP1999002204 A JP 1999002204A JP 220499 A JP220499 A JP 220499A JP 2000207766 A5 JP2000207766 A5 JP 2000207766A5
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JP
Japan
Prior art keywords
light
optical
optical recording
light sources
recording medium
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.)
Pending
Application number
JP1999002204A
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Japanese (ja)
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JP2000207766A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP11002204A priority Critical patent/JP2000207766A/en
Priority claimed from JP11002204A external-priority patent/JP2000207766A/en
Priority to KR1020000000300A priority patent/KR20000053390A/en
Priority to CNA2006100944916A priority patent/CN101093685A/en
Priority to CNA2005100601470A priority patent/CN1667721A/en
Priority to CNB001046934A priority patent/CN1203474C/en
Publication of JP2000207766A publication Critical patent/JP2000207766A/en
Publication of JP2000207766A5 publication Critical patent/JP2000207766A5/ja
Pending legal-status Critical Current

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Description

【特許請求の範囲】
【請求項1】
それぞれ波長を異にする光を出射する複数の光源と、
前記複数の光源から出射され、光記録媒体で反射される各々の戻り光を個別に受光する複数の受光部パターンを同一基板上に形成した光検出器と、
前記複数の光源からそれぞれ出射される光の前記光検出器に至る光路を共有する光学系とを有することを特徴とする光学ピックアップ装置。
【請求項2】
前記複数の光源が、同一基板上に配設されていることを特徴とする請求項1記載の光学ピックアップ装置。
【請求項3】
前記光学系は、前記複数の光源から出射された光と光記録媒体からの戻り光を分離するビームスプリッタと、前記複数の光源から出射された光を光記録媒体に向けて収束する収束素子とを備えることを特徴とする請求項1記載の光学ピックアップ装置。
【請求項4】
前記光学系は、更に前記複数の光源中の一つから出射された光を3分割する回折格子を備えることを特徴とする請求項3記載の光学ピックアップ装置。
【請求項5】
前記複数の光源は、第1の波長の光を出射する第1の光源と、前記第1の波長より短い第2の波長の光を出射する第2の光源が離間して配置され、前記第1の光源から出射された光の光路と前記第2の光源から出射された光の光路を前記光学系に向ける光学素子とを有することを特徴とする請求項3記載の光学ピックアップ装置。
【請求項6】
前記複数の光源は、第1の波長の光を出射する第1の光源と、前記第1の波長より短い第2の波長の光を出射する第2の光源からなり、光記録媒体の種類に応じて前記第1又は第2の光源が選択的に用いられることを特徴とする請求項1記載の光学ピックアップ装置。
【請求項7】
前記複数の受講パターンは、前記第1の光源から出射されて光記録媒体によって反射された戻り光を受光する第1の受光パターン部と、前記第2の光源から出射されて光記録媒体によって反射された戻り光を受光する第2の受光パターン部とを同一基板上に設けたことを特徴とする請求項6記載の光学ピックアップ装置。
【請求項8】
前記複数の光源からそれぞれ及び出射された光は、前記光学系を進む光路中で光軸が完全に一致していないことを特徴とする請求項1記載の光学ピックアップ装置。
【請求項9】
それぞれ波長を異にする光を出射する複数の光源と、
前記複数の光源から出射され、光記録媒体で反射される各々の戻り光を個別に受光する複数の受光部パターンを同一基板上に形成した光検出器と、
前記複数の光源からそれぞれ出射される光の前記光検出器に至る光路を共有する光学系とを有することを特徴とする光学ピックアップ装置と、
前記光学系を構成する対物レンズを、少なくとも前記光記録媒体のトラッキング方向に制御駆動する制御駆動手段と
を有することを特徴とする光記録再生装置。
【請求項10】
前記複数の光源が、同一基板上に配設されていることを特徴とする請求項9記載の光記録再生装置。
【請求項11】
前記光学系は、前記複数の光源から出射された光と光記録媒体からの戻り光を分離するビームスプリッタと、前記複数の光源から出射された光を光記録媒体に向けて収束する収束素子とを備えることを特徴とする請求項9記載の光記録再生装置
【請求項12】
前記光学系は、更に前記複数の光源中の一つから出射された光を3分割する回折格子を備えることを特徴とする請求項11記載の光記録再生装置。
【請求項13】
前記複数の光源は、第1の波長の光を出射する第1の光源と、前記第1の波長より短い第2の波長の光を出射する第2の光源が離間して配置され、前記第1の光源から出射された光の光路と前記第2の光源から出射された光の光路を前記光学系に向ける光学素子とを有することを特徴とする請求項11記載の光記録再生装置。
【請求項14】
前記複数の光源は、第1の波長の光を出射する第1の光源と、前記第1の波長より短い第2の波長の光を出射する第2の光源からなり、光記録媒体の種類に応じて前記第1又は第2の光源が選択的に用いられることを特徴とする請求項9記載の光記録再生装置。
【請求項15】
前記複数の受講パターンは、前記第1の光源から出射されて光記録媒体によって反射された戻り光を受光する第1の受光パターン部と、前記第2の光源から出射されて光記録媒体によって反射された戻り光を受光する第2の受光パターン部とを同一基板上に設けたことを特徴とする請求項14記載の光記録再生装置。
【請求項16】
前記複数の光源からそれぞれ及び出射された光は、前記光学系を進む光路中で光軸が完全に一致していないことを特徴とする請求項9記載の光記録再生装置。
[Claims]
[Claim 1]
Multiple light sources that emit light of different wavelengths,
A photodetector in which a plurality of light receiving part patterns that individually receive each return light emitted from the plurality of light sources and reflected by the optical recording medium are formed on the same substrate.
An optical pickup device comprising an optical system that shares an optical path of light emitted from each of the plurality of light sources to the photodetector.
2.
The optical pickup device according to claim 1, wherein the plurality of light sources are arranged on the same substrate.
3.
The optical system includes a beam splitter that separates light emitted from the plurality of light sources and return light from the optical recording medium, and a converging element that converges the light emitted from the plurality of light sources toward the optical recording medium. The optical pickup device according to claim 1, further comprising.
4.
The optical pickup device according to claim 3, wherein the optical system further includes a diffraction grating that divides light emitted from one of the plurality of light sources into three parts.
5.
In the plurality of light sources, a first light source that emits light having a first wavelength and a second light source that emits light having a second wavelength shorter than the first wavelength are arranged apart from each other. The optical pickup device according to claim 3, further comprising an optical path of light emitted from a light source of 1 and an optical element for directing an optical path of light emitted from the second light source to the optical system.
6.
The plurality of light sources include a first light source that emits light having a first wavelength and a second light source that emits light having a second wavelength shorter than the first wavelength, depending on the type of optical recording medium. The optical pickup device according to claim 1, wherein the first or second light source is selectively used accordingly.
7.
The plurality of learning patterns are a first light receiving pattern portion that receives the return light emitted from the first light source and reflected by the optical recording medium, and a light receiving pattern unit that is emitted from the second light source and reflected by the optical recording medium. The optical pickup device according to claim 6, wherein a second light receiving pattern portion for receiving the returned light is provided on the same substrate.
8.
The optical pickup device according to claim 1, wherein the light emitted from each of the plurality of light sources does not completely coincide with the optical axis in the optical path traveling through the optical system.
9.
Multiple light sources that emit light of different wavelengths,
A photodetector in which a plurality of light receiving part patterns that individually receive each return light emitted from the plurality of light sources and reflected by the optical recording medium are formed on the same substrate.
An optical pickup device characterized by having an optical system that shares an optical path of light emitted from each of the plurality of light sources to the photodetector.
An optical recording / reproducing device including, at least, a control driving means for controlling and driving an objective lens constituting the optical system in a tracking direction of the optical recording medium.
10.
The optical recording / reproducing device according to claim 9 , wherein the plurality of light sources are arranged on the same substrate.
11.
The optical system includes a beam splitter that separates light emitted from the plurality of light sources and return light from the optical recording medium, and a converging element that converges the light emitted from the plurality of light sources toward the optical recording medium. 9. The optical recording / playback device according to claim 9 .
12.
The optical recording / reproducing device according to claim 11, wherein the optical system further includes a diffraction grating that divides light emitted from one of the plurality of light sources into three parts.
13.
In the plurality of light sources, a first light source that emits light having a first wavelength and a second light source that emits light having a second wavelength shorter than the first wavelength are arranged apart from each other. The optical recording / reproducing device according to claim 11, further comprising an optical path of light emitted from a light source of 1 and an optical element for directing an optical path of light emitted from the second light source to the optical system.
14.
The plurality of light sources include a first light source that emits light having a first wavelength and a second light source that emits light having a second wavelength shorter than the first wavelength, depending on the type of optical recording medium. The optical recording / reproducing device according to claim 9, wherein the first or second light source is selectively used accordingly.
15.
The plurality of learning patterns are a first light receiving pattern unit that receives the return light emitted from the first light source and reflected by the optical recording medium, and a light receiving pattern unit that is emitted from the second light source and reflected by the optical recording medium. The optical recording / reproducing device according to claim 14, wherein a second light receiving pattern portion for receiving the returned light is provided on the same substrate.
16.
The optical recording / reproducing device according to claim 9, wherein the light emitted from each of the plurality of light sources does not completely coincide with the optical axis in the optical path traveling through the optical system.

【0006】
【課題を解決するための手段】
上記課題を解決するため、本発明に係る光学ピックアップ装置は、それぞれ波長を異にする光を出射する複数の光源と、前記複数の光源から出射され、光記録媒体で反射される各々の戻り光を個別に受光する複数の受光部パターンを同一基板上に形成した光検出器と、前記複数の光源からそれぞれ出射される光の前記光検出器に至る光路を共有する光学系とを有するようにしたものである
0006
[Means for solving problems]
In order to solve the above problems, the optical pickup device according to the present invention has a plurality of light sources that emit light having different wavelengths, and each return light emitted from the plurality of light sources and reflected by an optical recording medium. a photodetector which a plurality of light receiving part pattern formed on the same substrate for individually receiving, so as to have an optical system that shares the optical path to the light detector of the light emitted from each of said plurality of light sources It was done .

また、本発明に係る光記録再生装置は、それぞれ波長を異にする光を出射する複数の光源と、前記複数の光源から出射され、光記録媒体で反射される各々の戻り光を個別に受光する複数の受光部パターンを同一基板上に形成した光検出器と、前記複数の光源からそれぞれ出射される光の前記光検出器に至る光路を共有する光学系とを有することを特徴とする光学ピックアップ装置と、前記光学系を構成する対物レンズを、少なくとも前記光記録媒体のトラッキング方向に制御駆動する、例えばリニアモータ等により構成された制御駆動手段とを有する。 Further, the optical recording / reproducing device according to the present invention individually receives a plurality of light sources that emit light having different wavelengths and each return light emitted from the plurality of light sources and reflected by the optical recording medium. An optical system characterized by having an optical detector in which a plurality of light receiving unit patterns are formed on the same substrate, and an optical system that shares an optical path of light emitted from each of the plurality of light sources to the optical detector. It has a pickup device and a control driving means configured by , for example, a linear motor, which controls and drives the objective lens constituting the optical system in at least the tracking direction of the optical recording medium.

JP11002204A 1999-01-07 1999-01-07 Optical pickup device and optical recording and reproducing apparatus provided therewith Pending JP2000207766A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP11002204A JP2000207766A (en) 1999-01-07 1999-01-07 Optical pickup device and optical recording and reproducing apparatus provided therewith
KR1020000000300A KR20000053390A (en) 1999-01-07 2000-01-05 Optical pickup, and optical recording/reproducing apparatus using same
CNA2006100944916A CN101093685A (en) 1999-01-07 2000-01-07 Optical pickup apparatus and optical recording/regenerating apparatus
CNA2005100601470A CN1667721A (en) 1999-01-07 2000-01-07 Optical pickup device and optical recording and reproducing apparatus provided therewith
CNB001046934A CN1203474C (en) 1999-01-07 2000-01-07 Optical picking up device and optical recording/reproducing device using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11002204A JP2000207766A (en) 1999-01-07 1999-01-07 Optical pickup device and optical recording and reproducing apparatus provided therewith

Publications (2)

Publication Number Publication Date
JP2000207766A JP2000207766A (en) 2000-07-28
JP2000207766A5 true JP2000207766A5 (en) 2006-02-16

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JP11002204A Pending JP2000207766A (en) 1999-01-07 1999-01-07 Optical pickup device and optical recording and reproducing apparatus provided therewith

Country Status (3)

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JP (1) JP2000207766A (en)
KR (1) KR20000053390A (en)
CN (3) CN1667721A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100437655B1 (en) * 2001-08-16 2004-06-30 (주)해빛정보 An integrated optical disk pickup device
JP4822037B2 (en) * 2001-08-24 2011-11-24 コニカミノルタホールディングス株式会社 Objective lens of optical pickup device and optical pickup device
KR100438701B1 (en) * 2001-09-17 2004-07-05 삼성전자주식회사 Compatible optical pickup and adjusting method for set optical axis thereof
KR20030067165A (en) * 2002-02-07 2003-08-14 삼성전기주식회사 Optical pick-up
KR100472443B1 (en) * 2002-03-19 2005-02-21 삼성전자주식회사 Optical pick-up apparatus
KR100477680B1 (en) * 2002-11-12 2005-03-21 삼성전자주식회사 Optical pickup
KR100477679B1 (en) * 2002-11-12 2005-03-21 삼성전자주식회사 Optical pickup
CN100407313C (en) 2003-04-25 2008-07-30 宾得株式会社 Optical system of optical pick-up
JP2006012303A (en) * 2004-06-25 2006-01-12 Funai Electric Co Ltd Optical pickup
JP2013020689A (en) 2011-06-16 2013-01-31 Sony Corp Optical recording medium drive device and tracking error signal generating method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09265656A (en) * 1996-03-28 1997-10-07 Victor Co Of Japan Ltd Optical pickup
JP3244442B2 (en) * 1996-08-30 2002-01-07 三洋電機株式会社 Optical regeneration device
JPH11149657A (en) * 1997-11-14 1999-06-02 Sony Corp Information recording and reproducing device, its method and optical pickup

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