DE2423074C2 - Einrichtung zur Spurführung eines Lichtstrahlabtastkopfes - Google Patents

Einrichtung zur Spurführung eines Lichtstrahlabtastkopfes

Info

Publication number
DE2423074C2
DE2423074C2 DE2423074A DE2423074A DE2423074C2 DE 2423074 C2 DE2423074 C2 DE 2423074C2 DE 2423074 A DE2423074 A DE 2423074A DE 2423074 A DE2423074 A DE 2423074A DE 2423074 C2 DE2423074 C2 DE 2423074C2
Authority
DE
Germany
Prior art keywords
signal
track
frequency
light beam
mirror
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
Application number
DE2423074A
Other languages
German (de)
English (en)
Other versions
DE2423074A1 (de
Inventor
Hansjoachim. Dr. Hamisch
Karl-Ludwig Dr. 1000 Berlin Zorn
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE2423074A priority Critical patent/DE2423074C2/de
Priority to CH364775A priority patent/CH580854A5/xx
Priority to AT352975A priority patent/AT351813B/de
Priority to GB19558/75A priority patent/GB1506630A/en
Priority to BR3688/75A priority patent/BR7502901A/pt
Priority to JP50055920A priority patent/JPS50156947A/ja
Priority to NL7505545A priority patent/NL7505545A/xx
Priority to SE7505429A priority patent/SE397894B/xx
Priority to AT808275A priority patent/AT352975B/de
Publication of DE2423074A1 publication Critical patent/DE2423074A1/de
Application granted granted Critical
Publication of DE2423074C2 publication Critical patent/DE2423074C2/de
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/30—Coverings, e.g. protecting against weather, for decorative purposes
    • E06B3/301—Coverings, e.g. protecting against weather, for decorative purposes consisting of prefabricated profiled members or glass
    • E06B3/305—Covering metal frames with plastic or metal profiled members
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/54—Fixing of glass panes or like plates
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/5409—Means for locally spacing the pane from the surrounding frame
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/5481—Fixing of glass panes or like plates by means of discrete fixing elements, e.g. glazing clips, glaziers points
    • 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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • 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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G11B7/0904—Dithered tracking systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
DE2423074A 1974-05-13 1974-05-13 Einrichtung zur Spurführung eines Lichtstrahlabtastkopfes Expired DE2423074C2 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE2423074A DE2423074C2 (de) 1974-05-13 1974-05-13 Einrichtung zur Spurführung eines Lichtstrahlabtastkopfes
CH364775A CH580854A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-05-13 1975-03-21
AT352975A AT351813B (de) 1974-05-13 1975-05-07 Vorrichtung an speichergeraeten, zur spurfuehrung eines lichtstrahl-abtastkopfes bei wiedergabe von informationen
GB19558/75A GB1506630A (en) 1974-05-13 1975-05-09 Guiding of a light beam scanning spot on a track
BR3688/75A BR7502901A (pt) 1974-05-13 1975-05-12 Dispositivo aperfeicoado para conducao de pista de uma cabeca de exploracao de raio luminoso em aparelhos acumuladores
JP50055920A JPS50156947A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-05-13 1975-05-12
NL7505545A NL7505545A (nl) 1974-05-13 1975-05-12 Inrichting voor spoorgeleiding van een licht- straalaftastkop bij registratie-apparaten.
SE7505429A SE397894B (sv) 1974-05-13 1975-05-12 Anordning for sparstyrning av ett ljusstralavsokningshuvud vid signaluppteckningsapparater
AT808275A AT352975B (de) 1974-05-13 1975-10-23 Feuerhemmende verglasung in form einer in einem rahmen angeordneten glasscheibe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2423074A DE2423074C2 (de) 1974-05-13 1974-05-13 Einrichtung zur Spurführung eines Lichtstrahlabtastkopfes

Publications (2)

Publication Number Publication Date
DE2423074A1 DE2423074A1 (de) 1975-11-27
DE2423074C2 true DE2423074C2 (de) 1983-09-22

Family

ID=5915374

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2423074A Expired DE2423074C2 (de) 1974-05-13 1974-05-13 Einrichtung zur Spurführung eines Lichtstrahlabtastkopfes

Country Status (8)

Country Link
JP (1) JPS50156947A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (2) AT351813B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR7502901A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH580854A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2423074C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1506630A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7505545A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE397894B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375690A1 (fr) * 1976-12-23 1978-07-21 Thomson Brandt Dispositif de detection de l'erreur de suivi radial pour lecteurs et enregistreurs optiques
CA1147456A (en) * 1978-03-23 1983-05-31 Raymond F. Ravizza Automatically compensated movable head servo circuit and method
US4232201A (en) * 1978-11-24 1980-11-04 Mca Discovision, Inc. Dithered center tracking system
DE3049004A1 (de) * 1980-12-24 1982-07-15 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur wiedergabe von auf plattenfoermigen traegern aufgezeichneten signalen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126535A (en) * 1961-12-27 1964-03-24 Transducer positioning system

Also Published As

Publication number Publication date
DE2423074A1 (de) 1975-11-27
AT352975B (de) 1979-01-15
ATA808275A (de) 1979-03-15
NL7505545A (nl) 1975-11-17
AT351813B (de) 1979-08-10
GB1506630A (en) 1978-04-05
SE7505429L (sv) 1975-11-14
ATA352975A (de) 1979-01-15
SE397894B (sv) 1977-11-21
JPS50156947A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-12-18
BR7502901A (pt) 1976-03-23
CH580854A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-10-15

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Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee