[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO2002029793A3 - Continuous flexible connection method for miniature optical head - Google Patents

Continuous flexible connection method for miniature optical head Download PDF

Info

Publication number
WO2002029793A3
WO2002029793A3 PCT/US2001/042335 US0142335W WO0229793A3 WO 2002029793 A3 WO2002029793 A3 WO 2002029793A3 US 0142335 W US0142335 W US 0142335W WO 0229793 A3 WO0229793 A3 WO 0229793A3
Authority
WO
WIPO (PCT)
Prior art keywords
actuator arm
service loop
resting position
focus
axis
Prior art date
Application number
PCT/US2001/042335
Other languages
French (fr)
Other versions
WO2002029793A2 (en
Inventor
Thomas E Berg
Scott D Abrahamson
Peter J Raymond
Original Assignee
Dataplay 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
Priority claimed from US09/679,941 external-priority patent/US6631113B1/en
Application filed by Dataplay Inc filed Critical Dataplay Inc
Priority to AU2001295084A priority Critical patent/AU2001295084A1/en
Publication of WO2002029793A2 publication Critical patent/WO2002029793A2/en
Publication of WO2002029793A3 publication Critical patent/WO2002029793A3/en

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
    • G11B7/08—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
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08576—Swinging-arm positioners
    • 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
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Head (AREA)

Abstract

An optical assembly includes a service loop extended from a focus section of an actuator arm. A portion of the service loop bends when a tracking section of the actuator arm rotates around a tracking axis while a portion of the flex circuit twists when the focus section of the actuator arm rotates around a focus axis. A method is provided to predict the shape of a service loop that will not rotate the actuator arm from a resting position. The method uses a number of deflected beam elements to simulate the service loop under simple beam theory. In order for the actuator arm to remain in the resting position, the method assumes that the service loop applies an equivalent force to the actuator arm through the rotation axis of the actuator arm. Another method is provided to calculate the restoring torque exerted by the service loop when the actuator arm is rotated from its resting position. The method again uses deflected beam elements to simulate the service loop but assumes that the service loop applies a force that is offset from the rotation axis of the actuator arm.
PCT/US2001/042335 2000-10-04 2001-09-25 Continuous flexible connection method for miniature optical head WO2002029793A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001295084A AU2001295084A1 (en) 2000-10-04 2001-09-25 Continuous flexible connection method for miniature optical head

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09/679,941 US6631113B1 (en) 2000-10-04 2000-10-04 Continuous flexible connection method for miniature optical head
US09/679,941 2000-10-04
US09/802,708 US6704256B2 (en) 2000-10-04 2001-03-08 Continuous flexible connection for miniature optical head
US09/802,708 2001-03-08

Publications (2)

Publication Number Publication Date
WO2002029793A2 WO2002029793A2 (en) 2002-04-11
WO2002029793A3 true WO2002029793A3 (en) 2002-08-15

Family

ID=27102342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/042335 WO2002029793A2 (en) 2000-10-04 2001-09-25 Continuous flexible connection method for miniature optical head

Country Status (3)

Country Link
AU (1) AU2001295084A1 (en)
TW (1) TWI234146B (en)
WO (1) WO2002029793A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7317674B2 (en) * 2003-03-11 2008-01-08 Intersil Americas Inc. Optical pick-up units and laser drivers with increased functionality
US7808872B2 (en) 2006-07-06 2010-10-05 Intersil Americas Inc. Hybrid laser diode drivers that include a state machine
US8018809B2 (en) 2007-05-16 2011-09-13 Intersil Americas Inc. Hybrid laser diode drivers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965684A (en) * 1988-01-25 1990-10-23 Conner Peripherals, Inc. Low height disk drive
EP0862168A2 (en) * 1992-01-21 1998-09-02 Fujitsu Limited Optical disk apparatus having a reduced size

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965684A (en) * 1988-01-25 1990-10-23 Conner Peripherals, Inc. Low height disk drive
EP0862168A2 (en) * 1992-01-21 1998-09-02 Fujitsu Limited Optical disk apparatus having a reduced size

Also Published As

Publication number Publication date
AU2001295084A1 (en) 2002-04-15
WO2002029793A2 (en) 2002-04-11
TWI234146B (en) 2005-06-11

Similar Documents

Publication Publication Date Title
US5441451A (en) Air vent control apparatus
JP5466891B2 (en) Endoscope swing device
EP1553017A3 (en) Switch style bicycle shift control device
WO2001090661A3 (en) Double reflecting solar concentrator
WO2002022493A3 (en) Direct acting vertical thermal actuator with controlled bending
AU2531901A (en) Optical fibre switching assembly
WO2002029793A3 (en) Continuous flexible connection method for miniature optical head
JP2005320960A (en) Shape memory bistable actuator
TW201128067A (en) Gravity assisting rotation mechanism
JP2007010655A (en) Timepiece having controller for striking mechanism adapted to flexible transmission element
EP1223664A3 (en) Actuator with a flexure arrangement to accomodate a long range of motion
AU5673800A (en) A toy ball game with play mechanism
WO2001027668A3 (en) Actuator assembly for optical switches
JP2003110007A5 (en)
CA2237012A1 (en) Independent brake handle assembly
JP2004106115A (en) Robot hand's finger drive mechanism and robot hand
WO2007060153A3 (en) Clockwork movement
JP2005257785A (en) Spring hinge for spectacles and method for assembling the same
JP2000241867A (en) Movable filter device
JP2006181675A (en) Rotation limit device
WO2002017470A1 (en) Micromechanical device having two degrees of motion
JPH10109284A (en) Micromanipulator and its driving method
TW412641B (en) Spring-ring micromechanical device
WO2004044640A3 (en) Device for deflecting a laser beam
US6903486B2 (en) Balanced microdevice

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP