JPH0578095B2 - - Google Patents

Info

Publication number
JPH0578095B2
JPH0578095B2 JP58229837A JP22983783A JPH0578095B2 JP H0578095 B2 JPH0578095 B2 JP H0578095B2 JP 58229837 A JP58229837 A JP 58229837A JP 22983783 A JP22983783 A JP 22983783A JP H0578095 B2 JPH0578095 B2 JP H0578095B2
Authority
JP
Japan
Prior art keywords
light beam
movable part
reflected
light
substrate
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.)
Expired - Lifetime
Application number
JP58229837A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60124035A (ja
Inventor
Tetsuo Kuwayama
Shigeyuki Suda
Yasuo Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Canon Electronics Inc
Original Assignee
Canon Inc
Canon Electronics Inc
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 Canon Inc, Canon Electronics Inc filed Critical Canon Inc
Priority to JP58229837A priority Critical patent/JPS60124035A/ja
Priority to US06/678,593 priority patent/US4734905A/en
Publication of JPS60124035A publication Critical patent/JPS60124035A/ja
Publication of JPH0578095B2 publication Critical patent/JPH0578095B2/ja
Granted legal-status Critical Current

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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1359—Single prisms
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1362—Mirrors
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
JP58229837A 1983-12-07 1983-12-07 光ヘッド装置 Granted JPS60124035A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP58229837A JPS60124035A (ja) 1983-12-07 1983-12-07 光ヘッド装置
US06/678,593 US4734905A (en) 1983-12-07 1984-12-05 Optical head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58229837A JPS60124035A (ja) 1983-12-07 1983-12-07 光ヘッド装置

Publications (2)

Publication Number Publication Date
JPS60124035A JPS60124035A (ja) 1985-07-02
JPH0578095B2 true JPH0578095B2 (en, 2012) 1993-10-28

Family

ID=16898451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58229837A Granted JPS60124035A (ja) 1983-12-07 1983-12-07 光ヘッド装置

Country Status (2)

Country Link
US (1) US4734905A (en, 2012)
JP (1) JPS60124035A (en, 2012)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190730A (ja) * 1985-02-19 1986-08-25 Matsushita Electric Ind Co Ltd 光学的記録再生ヘツド
JPS62219339A (ja) * 1986-03-20 1987-09-26 Fujitsu Ltd 光ピツクアツプ
JPH0752522B2 (ja) * 1986-10-21 1995-06-05 三菱電機株式会社 光学ヘッド装置
US5060212A (en) * 1987-08-17 1991-10-22 Ricoh Company, Ltd. Integrated optical pick-up device
US4993789A (en) * 1988-09-15 1991-02-19 Jonathan R. Biles Dual wavelength polarization selective holographic optical element
JPH0265215U (en, 2012) * 1988-10-31 1990-05-16
JPH02134736A (ja) * 1988-11-15 1990-05-23 Nippon Columbia Co Ltd 反射部材
FR2642530A1 (fr) * 1989-01-30 1990-08-03 Seiko Epson Corp Mecanisme de focalisation et tete optique
JPH03106529U (en, 2012) * 1990-02-16 1991-11-05
JP2528445B2 (ja) * 1991-04-10 1996-08-28 株式会社三協精機製作所 光ピックアップ装置
US5311496A (en) * 1992-11-13 1994-05-10 Hyundai Electronics America Achromatic expansion prism for magneto-optical drive
TW239211B (en) * 1993-04-02 1995-01-21 Hyundai Electronics America Electromagnetic lens actuator for optical disk drive
DE10045973A1 (de) * 2000-09-16 2002-04-04 Bosch Gmbh Robert Optische Vorrichtung zum Bohren mittels Laserstrahl
TW529022B (en) * 2001-12-11 2003-04-21 Discovision Associates Inc Optical path system of optical disk

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479108A (en) * 1968-09-04 1969-11-18 Optical Res & Dev Corp Displaced image reflecting optical stabilized system
US4451913A (en) * 1972-10-24 1984-05-29 Discovision Associates Video disc read back scanner
US3884548A (en) * 1973-02-21 1975-05-20 Mc Donnell Douglas Corp Variable optical wedge for image stabilization and other purposes
JPS5817971B2 (ja) * 1974-06-21 1983-04-11 キヤノン株式会社 コウガクケイイドウソウチ
US4198657A (en) * 1975-07-07 1980-04-15 Pioneer Electronic Corporation Optical disk reader with means for correcting errors due to eccentricity and time axis variations
JPS5629846A (en) * 1979-08-13 1981-03-25 Nippon Telegr & Teleph Corp <Ntt> Optical head
NL8104589A (nl) * 1981-10-08 1983-05-02 Philips Nv Optische aftasteenheid.
FR2523351B1 (fr) * 1982-03-09 1989-07-13 Thomson Csf Tete optique dans un dispositif d'enregistrement-lecture d'un support d'information
JPS59223943A (ja) * 1983-06-03 1984-12-15 Sony Corp 光学式デイスク装置

Also Published As

Publication number Publication date
US4734905A (en) 1988-03-29
JPS60124035A (ja) 1985-07-02

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