CN105989985B - 磁铁、使用上述磁铁的拾取装置以及上述磁铁的制造方法 - Google Patents

磁铁、使用上述磁铁的拾取装置以及上述磁铁的制造方法 Download PDF

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Publication number
CN105989985B
CN105989985B CN201610034649.4A CN201610034649A CN105989985B CN 105989985 B CN105989985 B CN 105989985B CN 201610034649 A CN201610034649 A CN 201610034649A CN 105989985 B CN105989985 B CN 105989985B
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China
Prior art keywords
magnet
magnetic
yoke
opposed
movable portion
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English (en)
Chinese (zh)
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CN105989985A (zh
Inventor
小岛雅美
木下佳久
稻叶安信
矶上慎二
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National Institute Of Higher Education
Alpine Electronics Inc
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National Institute Of Higher Education
Alpine Electronics Inc
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/021—Construction of PM
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Optical Head (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
CN201610034649.4A 2015-03-19 2016-01-19 磁铁、使用上述磁铁的拾取装置以及上述磁铁的制造方法 Active CN105989985B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015055589A JP6536880B2 (ja) 2015-03-19 2015-03-19 磁石と、前記磁石を使用したピックアップ装置、前記磁石の製造方法
JP2015-055589 2015-03-19

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CN105989985A CN105989985A (zh) 2016-10-05
CN105989985B true CN105989985B (zh) 2020-11-27

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CN201610034649.4A Active CN105989985B (zh) 2015-03-19 2016-01-19 磁铁、使用上述磁铁的拾取装置以及上述磁铁的制造方法

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JP (1) JP6536880B2 (ja)
CN (1) CN105989985B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107578882A (zh) * 2017-09-29 2018-01-12 杭州史宾纳科技有限公司 一种永磁式连续充磁方法及装置
CN111505110A (zh) * 2020-04-30 2020-08-07 中国航发成都发动机有限公司 一种叶片榫头磁粉检测装置
CN112992473B (zh) * 2021-04-19 2022-11-11 上海大学 一种用于Halbach磁体交叉充磁装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5159006A (en) * 1974-11-19 1976-05-22 Matsushita Electric Ind Co Ltd Mangan aruminiumu tansokeigokinjishakuno seizoho
JPS595218B2 (ja) * 1979-06-18 1984-02-03 松下電器産業株式会社 プラスチック磁石の製造方法
JP2002008921A (ja) * 2000-06-20 2002-01-11 Sanyo Special Steel Co Ltd 永久磁石の着磁方法
JP2002334458A (ja) * 2001-05-01 2002-11-22 Olympus Optical Co Ltd 対物レンズ駆動装置及び光ディスク装置
JP2002369492A (ja) * 2001-06-06 2002-12-20 Hitachi Metals Ltd 永久磁石及びこれを用いた磁場発生用磁気回路並びにリニアアクチュエータ
JP2006277853A (ja) * 2005-03-30 2006-10-12 Hitachi Media Electoronics Co Ltd 対物レンズ駆動装置とその製造方法
JP6170712B2 (ja) * 2013-04-12 2017-07-26 アズビル株式会社 双安定移動装置

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Publication number Publication date
CN105989985A (zh) 2016-10-05
JP6536880B2 (ja) 2019-07-03
JP2016178137A (ja) 2016-10-06

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