DE3325984C2 - - Google Patents

Info

Publication number
DE3325984C2
DE3325984C2 DE19833325984 DE3325984A DE3325984C2 DE 3325984 C2 DE3325984 C2 DE 3325984C2 DE 19833325984 DE19833325984 DE 19833325984 DE 3325984 A DE3325984 A DE 3325984A DE 3325984 C2 DE3325984 C2 DE 3325984C2
Authority
DE
Germany
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
Application number
DE19833325984
Other versions
DE3325984A1 (de
Inventor
Mitsuo Yokohama Jp Yamashita
Goro Sagamihara Kanagawa Jp Oda
Kiyoshi Yokohama Jp Tomimori
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.)
Toshiba Corp
Original Assignee
Toshiba 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
Priority to JP57126123A priority Critical patent/JPH0520607B2/ja
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of DE3325984A1 publication Critical patent/DE3325984A1/de
Application granted granted Critical
Publication of DE3325984C2 publication Critical patent/DE3325984C2/de
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00Relieving load on bearings
    • F16C39/06Relieving load on bearings using magnetic means
    • F16C39/063Permanent magnets
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B26/00Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating
    • G02B26/08Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating for controlling the direction of light
    • G02B26/10Scanning systems
    • G02B26/12Scanning systems using multifaceted mirrors
    • G02B26/121Mechanical drive devices for polygonal mirrors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1677Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08Structural association with bearings
    • H02K7/09Structural association with bearings with magnetic bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2370/00Apparatus relating to physics, e.g. instruments
    • F16C2370/20Optical, e.g. movable lenses or mirrors; Spectacles
    • F16C2370/22Polygon mirror
DE19833325984 1982-07-20 1983-07-19 Expired DE3325984C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57126123A JPH0520607B2 (de) 1982-07-20 1982-07-20

Publications (2)

Publication Number Publication Date
DE3325984A1 DE3325984A1 (de) 1984-02-02
DE3325984C2 true DE3325984C2 (de) 1987-02-12

Family

ID=14927216

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833325984 Expired DE3325984C2 (de) 1982-07-20 1983-07-19

Country Status (3)

Country Link
US (1) US4552417A (de)
JP (1) JPH0520607B2 (de)
DE (1) DE3325984C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818193A1 (de) * 1988-05-28 1989-12-07 Asea Brown Boveri Spindel mit elektromotorischem einzelantrieb

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734606A (en) * 1985-11-20 1988-03-29 Hajec Chester S Electric motor with ferrofluid bearing
JPS6388314A (en) * 1986-09-30 1988-04-19 Toshiba Corp Dynamic pressure air bearing
CA2027225A1 (en) 1989-10-27 1991-04-28 Donald James Macleod Spindle motor assembly for disc drives
US5019738A (en) * 1990-07-16 1991-05-28 Lincoln Laser Company Self-pressurizing gas supported surface-roughness bearing
US5036235A (en) * 1990-07-25 1991-07-30 Xerox Corporation Brushless DC motor having a stable hydrodynamic bearing system
JPH04307108A (en) * 1991-04-04 1992-10-29 Ebara Corp Hydrodynamic bearing unit
JPH08223858A (ja) * 1994-12-15 1996-08-30 Canon Inc インナーロータモータ
EP0764792B1 (de) * 1995-09-19 2003-04-09 Canon Kabushiki Kaisha Dynamische Gasdrucklagervorrichtung und abtastende optische Ablenkvorrichtung
JPH1198773A (ja) * 1997-09-26 1999-04-09 Minebea Co Ltd 磁気ディスク駆動用モータの製造方法
DE19847347C2 (de) * 1998-10-14 2001-03-29 Ldt Gmbh & Co Magnetlager
JP2000295816A (ja) * 1999-04-02 2000-10-20 Seiko Instruments Inc モータ、モータの製造方法、及び回転体装置
JP2003307214A (ja) * 2002-04-16 2003-10-31 Citizen Watch Co Ltd 輔受装置およびこの軸受装置を用いたモータ
US6972500B2 (en) 2003-03-26 2005-12-06 Keihin Corporation Electromagnetic actuator
JP3845421B2 (ja) * 2004-03-23 2006-11-15 株式会社ケーヒン 電磁式アクチュエータ
JP2006187061A (ja) * 2004-12-27 2006-07-13 Matsushita Electric Ind Co Ltd スピンドルモータ
CN101294601A (zh) * 2007-04-25 2008-10-29 富准精密工业(深圳)有限公司 动压轴承结构及采用该动压轴承结构的散热风扇
DE202009012924U1 (de) * 2009-09-25 2010-01-14 Precitec Kg Einschub zur Halterung einer Optik in einem Laserbearbeitungskopf sowie ein Laserbearbeitungskopf
CN103212795B (zh) * 2013-02-04 2015-08-19 张立国 一种基于空心电主轴的激光光束旋转装置
JP6286277B2 (ja) 2014-05-12 2018-02-28 日本電産コパル電子株式会社 流体動圧軸受、モータ、光偏向器
CN105202025B (zh) * 2015-09-12 2017-09-15 北京科技大学 一种旋转调制径向球面纯电磁磁轴承

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1919522A (en) * 1930-04-21 1933-07-25 Lipman Patents Corp Electric motor
US3004180A (en) * 1956-04-23 1961-10-10 Air Glide Inc Fluid supported rotor
DE1082977B (de) * 1956-08-25 1960-06-09 Siemens Ag Anordnung zur Gewinnung von Wechselstroemen mittlerer Frequenz, insbesondere zur Erzeugung von Ultraschall grosser Leistung
FR1226129A (fr) * 1959-05-30 1960-07-08 Air Glide Machine dynamo-électrique
FR1226177A (fr) * 1959-05-30 1960-07-08 Air Glide Machines dynamoélectriques
DE1869906U (de) * 1961-06-23 1963-04-04 Heliowatt Werke Anordnung zur magnetischen entlastung der lager von zaehlern od. dgl.
JPS501759U (de) * 1973-05-04 1975-01-09
US4043612A (en) * 1975-06-06 1977-08-23 Ampex Corporation Bearing structure
US4187452A (en) * 1975-08-27 1980-02-05 International Business Machines Corporation Electromechanical torsional oscillator with resonant frequency and amplitude control
JPS5589839U (de) * 1978-12-14 1980-06-21
US4332428A (en) * 1979-01-16 1982-06-01 Matsushita Electric Industrial Co., Ltd. Rotary mechanism with axial bearings
JPS615012B2 (de) * 1979-03-06 1986-02-14 Matsushita Electric Ind Co Ltd
JPS5620830A (en) * 1979-07-26 1981-02-26 Matsushita Electric Ind Co Ltd Rotation transmitting device
JPS5789357U (de) * 1980-11-17 1982-06-02
JPS5843421A (en) * 1981-09-09 1983-03-14 Toshiba Corp Optical deflector for rotary mirror
JPS5892516U (de) * 1981-12-18 1983-06-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818193A1 (de) * 1988-05-28 1989-12-07 Asea Brown Boveri Spindel mit elektromotorischem einzelantrieb

Also Published As

Publication number Publication date
JPH0520607B2 (de) 1993-03-22
JPS5917019A (en) 1984-01-28
US4552417A (en) 1985-11-12
DE3325984A1 (de) 1984-02-02

Similar Documents

Publication Publication Date Title
DE3204532C2 (de)
DE3203937C2 (de)
DE3203750C2 (de)
DE3206325C2 (de)
DE3204989C2 (de)
DE3203940C2 (de)
DE3201013C2 (de)
DE3207426C2 (de)
DE3202042C2 (de)
DE3206482C2 (de)
DE3202254C2 (de)
CH655511B (de)
CH655561B (de)
DE3200838C2 (de)
DE3202914C2 (de)
CH650894GA3 (de)
DE3203028C2 (de)
DE3208234C2 (de)
CH655574B (de)
DE3203091C2 (de)
DE3200310C2 (de)
DE3206130C2 (de)
DE3201309C2 (de)
DE3201391C2 (de)
DE3208100C2 (de)

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8128 New person/name/address of the agent

Representative=s name: HENKEL, G., DR.PHIL. FEILER, L., DR.RER.NAT. HAENZ

D2 Grant after examination
8327 Change in the person/name/address of the patent owner

Owner name: KABUSHIKI KAISHA TOSHIBA, KAWASAKI, KANAGAWA, JP

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee