HK1038427A1 - Optical pickup apparatus and laser diode chip - Google Patents

Optical pickup apparatus and laser diode chip

Info

Publication number
HK1038427A1
HK1038427A1 HK01109200A HK01109200A HK1038427A1 HK 1038427 A1 HK1038427 A1 HK 1038427A1 HK 01109200 A HK01109200 A HK 01109200A HK 01109200 A HK01109200 A HK 01109200A HK 1038427 A1 HK1038427 A1 HK 1038427A1
Authority
HK
Hong Kong
Prior art keywords
laser diode
optical pickup
pickup apparatus
diode chip
chip
Prior art date
Application number
HK01109200A
Other languages
English (en)
Inventor
Shinichi Takahashi
Hirokatsu Nagatake
Aki Yoshioka
Mitsutoshi Sugano
Ko Ishii
Makoto Kawamura
Akira Miura
Masayuki Koyama
Original Assignee
Pioneer Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pioneer Corp filed Critical Pioneer Corp
Publication of HK1038427A1 publication Critical patent/HK1038427A1/xx

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
HK01109200A 2000-02-09 2001-12-28 Optical pickup apparatus and laser diode chip HK1038427A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000031786A JP2001229570A (ja) 2000-02-09 2000-02-09 光ピックアップ装置及びレーザダイオードチップ

Publications (1)

Publication Number Publication Date
HK1038427A1 true HK1038427A1 (en) 2002-03-15

Family

ID=18556493

Family Applications (1)

Application Number Title Priority Date Filing Date
HK01109200A HK1038427A1 (en) 2000-02-09 2001-12-28 Optical pickup apparatus and laser diode chip

Country Status (4)

Country Link
US (1) US6912234B2 (xx)
JP (1) JP2001229570A (xx)
CN (1) CN1218307C (xx)
HK (1) HK1038427A1 (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002232077A (ja) * 2001-02-02 2002-08-16 Sony Corp 半導体発光装置およびその製造方法
KR20050008767A (ko) * 2002-06-03 2005-01-21 소니 가부시끼 가이샤 2파장 광소자
KR100936021B1 (ko) * 2002-06-14 2010-01-11 삼성전자주식회사 광픽업 장치 및 레이저의 장축과 피트의 사잇각 조절 방법
KR20040005269A (ko) * 2002-07-09 2004-01-16 엘지이노텍 주식회사 두 파장 레이저다이오드 및 그 제조방법
JP4194315B2 (ja) * 2002-07-29 2008-12-10 キヤノン株式会社 レーザ露光装置
JP4660224B2 (ja) 2004-03-30 2011-03-30 三洋電機株式会社 半導体レーザ装置
JP4614715B2 (ja) 2004-08-31 2011-01-19 三洋電機株式会社 半導体レーザ装置およびその製造方法
JP4319181B2 (ja) * 2005-09-08 2009-08-26 シャープ株式会社 光ピックアップ装置および情報記録再生装置
JP2022051125A (ja) 2020-09-18 2022-03-31 日亜化学工業株式会社 発光装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06302002A (ja) * 1993-04-12 1994-10-28 Rohm Co Ltd 半導体レーザ装置
US6449237B1 (en) 1996-08-29 2002-09-10 Samsung Electronics Co., Ltd. Optical recording and pickup head for digital versatile disc compatible with read-writable compact disc by adopting flat plate lens having staircase type diffraction grating structure
JP3653923B2 (ja) 1997-03-19 2005-06-02 ソニー株式会社 記録再生装置および方法
JPH10308031A (ja) * 1997-05-06 1998-11-17 Sankyo Seiki Mfg Co Ltd 光ピックアップ装置
JPH10312575A (ja) 1997-05-09 1998-11-24 Pioneer Electron Corp 光ピックアップ装置
TW346687B (en) 1997-09-15 1998-12-01 Ind Tech Res Inst Package of semiconductor laser diode and compact disk with two-wavelength read/write head
EP0911818A1 (en) 1997-10-27 1999-04-28 Deutsche Thomson-Brandt Gmbh Compact dual wavelength optical pickup head
US6377536B1 (en) 1997-12-22 2002-04-23 Lg Electronics Inc. Optical pick-up apparatus
US6449235B1 (en) 1998-04-04 2002-09-10 Lg Electronics, Inc. Optical pick-up apparatus and optical recording/reproducing apparatus using the same
US6043935A (en) 1998-07-17 2000-03-28 Hoetron, Inc. Wavelength sensitive beam combiner with aberration correction
KR100295102B1 (ko) 1998-07-29 2001-07-12 이형도 광픽업
US6072579A (en) 1998-08-27 2000-06-06 Ricoh Company, Ltd. Optical pickup apparatus having improved holographic optical element and photodetector
JP2000090477A (ja) 1998-09-09 2000-03-31 Pioneer Electronic Corp 光ピックアップ、情報再生装置及び情報記録装置
US6347103B1 (en) 1998-09-26 2002-02-12 Lg Electronics Inc. Light source module with two wavelength
KR100604788B1 (ko) 1998-10-23 2006-07-26 삼성전자주식회사 호환형 광픽업장치

Also Published As

Publication number Publication date
JP2001229570A (ja) 2001-08-24
CN1310442A (zh) 2001-08-29
US6912234B2 (en) 2005-06-28
US20010050933A1 (en) 2001-12-13
CN1218307C (zh) 2005-09-07

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20100209