NL159844B - DEVICE FOR READING A FLAT RADIATION REFLECTIVE RECORD CARRIER. - Google Patents
DEVICE FOR READING A FLAT RADIATION REFLECTIVE RECORD CARRIER.Info
- Publication number
- NL159844B NL159844B NL7206377.A NL7206377A NL159844B NL 159844 B NL159844 B NL 159844B NL 7206377 A NL7206377 A NL 7206377A NL 159844 B NL159844 B NL 159844B
- Authority
- NL
- Netherlands
- Prior art keywords
- reading
- record carrier
- radiation reflective
- flat radiation
- reflective record
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/40—Optical focusing aids
-
- 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
- G11B7/0908—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 focusing only
-
- 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
- G11B7/0908—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 focusing only
- G11B7/0916—Foucault or knife-edge methods
-
- 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
- G11B7/0908—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 focusing only
- G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
-
- 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
- G11B7/0908—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 focusing only
- G11B7/0917—Focus-error methods other than those covered by G11B7/0909 - G11B7/0916
- G11B2007/0924—Skewed beams methods (using an angled beam, i.e. a beam which is reflected from the disc at an angle different from 90°)
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Priority Applications (22)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7206377.A NL159844B (en) | 1972-05-11 | 1972-05-11 | DEVICE FOR READING A FLAT RADIATION REFLECTIVE RECORD CARRIER. |
AR247988A AR205243A1 (en) | 1972-05-11 | 1973-01-01 | APPARATUS FOR READING A FLAT REFLECTOR RECORDING CARRIER |
ZA733044A ZA733044B (en) | 1972-05-11 | 1973-05-04 | Apparatus for reading a flat reflecting record carrier |
DE19732322725 DE2322725C3 (en) | 1973-04-19 | 1973-05-05 | Device for reading out a flat reflective recording medium |
SE7306438A SE401415B (en) | 1972-05-11 | 1973-05-08 | APPARATUS FOR READING A PLAN REFLECTIVE RECORDER |
CH653073A CH572247A5 (en) | 1972-05-11 | 1973-05-08 | |
CA170,625A CA1017858A (en) | 1972-05-11 | 1973-05-08 | Apparatus for reading a flat reflecting record carrier |
NO1897/73A NO141136C (en) | 1972-05-11 | 1973-05-08 | DEVICE FOR READING A PLAN REFLECTING RECORDING BEAR |
IT68300/73A IT985879B (en) | 1972-05-11 | 1973-05-08 | APPARATUS FOR READING A FLAT AND REFLECTIVE RECORDING SUPPORT |
DK252773AA DK133838B (en) | 1972-05-11 | 1973-05-08 | Apparatus for reading a flat, reflective record carrier. |
GB2190273A GB1435922A (en) | 1972-05-11 | 1973-05-08 | Reading optical recordings |
AU55431/73A AU480297B2 (en) | 1972-05-11 | 1973-05-09 | Apparatus for reading a flat reflecting record carrier |
ES414590A ES414590A1 (en) | 1972-05-11 | 1973-05-09 | Apparatus for reading a flat reflecting record carrier with autofocusing means |
BE130949A BE799335A (en) | 1972-05-11 | 1973-05-09 | DEVICE FOR READING A FLAT REFLECTOR RECORDING MEDIA, |
FR7316690A FR2183992B1 (en) | 1972-05-11 | 1973-05-09 | |
PL1973162459A PL86214B1 (en) | 1972-05-11 | 1973-05-10 | |
CS3321A CS170508B2 (en) | 1972-05-11 | 1973-05-10 | |
US358994A US3876841A (en) | 1972-05-11 | 1973-05-10 | Apparatus for reading a flat reflecting record carrier with autofocusing means |
YU1234/73A YU35404B (en) | 1972-05-11 | 1973-05-10 | Apparatus for reading a flat record carrier |
AT411873A AT323820B (en) | 1972-05-11 | 1973-05-10 | DEVICE FOR READING INFORMATION |
JP5246873A JPS5325481B2 (en) | 1972-05-11 | 1973-05-11 | |
BR3455/73A BR7303455D0 (en) | 1972-05-11 | 1973-05-11 | APPLIANCE TO READ A RECORDED FLAT REFLECTOR VEHICLE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7206377.A NL159844B (en) | 1972-05-11 | 1972-05-11 | DEVICE FOR READING A FLAT RADIATION REFLECTIVE RECORD CARRIER. |
Publications (2)
Publication Number | Publication Date |
---|---|
NL7206377A NL7206377A (en) | 1973-11-13 |
NL159844B true NL159844B (en) | 1979-03-15 |
Family
ID=19816020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7206377.A NL159844B (en) | 1972-05-11 | 1972-05-11 | DEVICE FOR READING A FLAT RADIATION REFLECTIVE RECORD CARRIER. |
Country Status (3)
Country | Link |
---|---|
BR (1) | BR7303455D0 (en) |
NL (1) | NL159844B (en) |
ZA (1) | ZA733044B (en) |
-
1972
- 1972-05-11 NL NL7206377.A patent/NL159844B/en not_active IP Right Cessation
-
1973
- 1973-05-04 ZA ZA733044A patent/ZA733044B/en unknown
- 1973-05-11 BR BR3455/73A patent/BR7303455D0/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU5543173A (en) | 1974-11-14 |
ZA733044B (en) | 1974-12-24 |
NL7206377A (en) | 1973-11-13 |
BR7303455D0 (en) | 1974-07-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NL160138C (en) | DEVICE FOR READING A FLAT REGISTRATION CARRIER. | |
NL164685C (en) | READING DEVICE FOR SCANNING INFORMATION ON AN INFORMATION CARRIER. | |
NL177157C (en) | DEVICE FOR READING A FLAT RECORD CARRIER WITH AN OPTICALLY READABLE INFORMATION STRUCTURE. | |
NL171304C (en) | HOLDER FOR STORING A CASSETTE WITH A TAPE RECORD CARRIER. | |
NL7402078A (en) | DEVICE FOR READING A DISK-SHAPED REGISTRATION CARRIER. | |
NL7509906A (en) | DEVICE FOR READING A DISK-SHAPED REGISTRATION CARRIER. | |
YU123473A (en) | Apparatus for reading a flat reflecting record carrier | |
NL7413162A (en) | DEVICE FOR READING A DISK-SHAPED RECORDING CARRIER. | |
NL177255B (en) | DEVICE FOR TRACKING A TIRE UNIT. | |
NL7414776A (en) | DEVICE FOR READING A REGISTRATION CARRIER WITH AN OPTICAL INFORMATION STRUCTURE. | |
NL177683C (en) | DEVICE FOR BENDING A GLASS PLATE. | |
NL7415741A (en) | DEVICE FOR ADDRESSING A RECORD MEMORY. | |
AT349076B (en) | RECORD CARRIER FOR INFORMATION | |
NL181761C (en) | DRIVE DEVICE USING A HOUSING FOR A DISC-SHAPED DATA CARRIER AND HOUSING FOR A DISC-SHAPED DATA CARRIER. | |
CH558730A (en) | LOADING DEVICE FOR TRUCKS. | |
NL163760C (en) | DEVICE FOR MANUFACTURING A GLASS TAPE. | |
NL168407C (en) | DEVICE FOR HOLDING A SLIDE. | |
NL7510352A (en) | DEVICE FOR SCANNING A DISK-SHAPED TYPE CARRIER. | |
NL7315419A (en) | DEVICE FOR READING A DISK-SHAPED REGISTRATION CARRIER. | |
NL181159C (en) | SYSTEM FOR RECORDING DATA IN A MEMORY DEVICE. | |
NL166429C (en) | DEVICE FOR MANUFACTURING A HOLDER. | |
NL176397C (en) | GUIDE AND TRANSPORT DEVICE FOR A METAL LAYERED RECORD CARRIER. | |
NL7505938A (en) | DEVICE FOR READING A DISK-SHAPED RECORDING CARRIER. | |
NL7415071A (en) | CASSETTE FOR A TAPE-SHAPED INFORMATION CARRIER AND DEVICE FOR USING THIS CASSETTE. | |
NL182944B (en) | DEVICE FOR MANUFACTURING A POLYMER FILM |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee | ||
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: PHILIPS |