GB1506630A - Guiding of a light beam scanning spot on a track - Google Patents
Guiding of a light beam scanning spot on a trackInfo
- Publication number
- GB1506630A GB1506630A GB19558/75A GB1955875A GB1506630A GB 1506630 A GB1506630 A GB 1506630A GB 19558/75 A GB19558/75 A GB 19558/75A GB 1955875 A GB1955875 A GB 1955875A GB 1506630 A GB1506630 A GB 1506630A
- Authority
- GB
- United Kingdom
- Prior art keywords
- track
- guiding
- light beam
- beam scanning
- scanning spot
- 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
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)
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 (1)
Publication Number | Publication Date |
---|---|
GB1506630A true GB1506630A (en) | 1978-04-05 |
Family
ID=5915374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19558/75A Expired GB1506630A (en) | 1974-05-13 | 1975-05-09 | Guiding of a light beam scanning spot on a track |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS50156947A (en:Method) |
AT (2) | AT351813B (en:Method) |
BR (1) | BR7502901A (en:Method) |
CH (1) | CH580854A5 (en:Method) |
DE (1) | DE2423074C2 (en:Method) |
GB (1) | GB1506630A (en:Method) |
NL (1) | NL7505545A (en:Method) |
SE (1) | SE397894B (en:Method) |
Families Citing this family (4)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126535A (en) * | 1961-12-27 | 1964-03-24 | Transducer positioning system |
-
1974
- 1974-05-13 DE DE2423074A patent/DE2423074C2/de not_active Expired
-
1975
- 1975-03-21 CH CH364775A patent/CH580854A5/xx not_active IP Right Cessation
- 1975-05-07 AT AT352975A patent/AT351813B/de not_active IP Right Cessation
- 1975-05-09 GB GB19558/75A patent/GB1506630A/en not_active Expired
- 1975-05-12 NL NL7505545A patent/NL7505545A/xx not_active Application Discontinuation
- 1975-05-12 BR BR3688/75A patent/BR7502901A/pt unknown
- 1975-05-12 JP JP50055920A patent/JPS50156947A/ja active Pending
- 1975-05-12 SE SE7505429A patent/SE397894B/xx unknown
- 1975-10-23 AT AT808275A patent/AT352975B/de active
Also Published As
Publication number | Publication date |
---|---|
DE2423074A1 (de) | 1975-11-27 |
BR7502901A (pt) | 1976-03-23 |
ATA808275A (de) | 1979-03-15 |
SE397894B (sv) | 1977-11-21 |
DE2423074C2 (de) | 1983-09-22 |
JPS50156947A (en:Method) | 1975-12-18 |
ATA352975A (de) | 1979-01-15 |
CH580854A5 (en:Method) | 1976-10-15 |
AT351813B (de) | 1979-08-10 |
SE7505429L (sv) | 1975-11-14 |
NL7505545A (nl) | 1975-11-17 |
AT352975B (de) | 1979-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |