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1. (WO2007004141) OPTICAL PICK-UP AND/OR RECORDING DEVICE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/004141 International Application No.: PCT/IB2006/052159
Publication Date: 11.01.2007 International Filing Date: 28.06.2006
IPC:
G11B 7/095 (2006.01) ,G11B 7/12 (2012.01) ,G11B 7/135 (2012.01)
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
08
Disposition or mounting of heads or light sources relatively to record carriers
09
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
095
specially adapted for discs, e.g. for compensation of eccentricity or wobble
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
12
Heads, e.g. forming of the optical beam spot or modulation of the optical beam
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
12
Heads, e.g. forming of the optical beam spot or modulation of the optical beam
135
Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
Applicants:
KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1 NL-5621 BA Eindhoven, NL (AllExceptUS)
ZIJP, Ferry [NL/NL]; NL (UsOnly)
VERSCHUREN, Coen, A. [NL/NL]; NL (UsOnly)
Inventors:
ZIJP, Ferry; NL
VERSCHUREN, Coen, A.; NL
Agent:
UITTENBOGAARD, Frank; Prof. Holstlaan 6 NL-5656 AA Eindhoven, NL
Priority Data:
05106048.104.07.2005EP
Title (EN) OPTICAL PICK-UP AND/OR RECORDING DEVICE
(FR) DISPOSITIF DE LECTURE ET/OU D'ENREGISTREMENT OPTIQUE
Abstract:
(EN) For optical data storage applications a near field optical system can be used. In near field optical systems an accurate alignment of a solid immersion lens with respect to a disc surface is crucial. The correction of a tilt between the lens and the disc is performed by use of auxiliary beams. By comparing the gap signal for the auxiliary beams the air gap height and disc tilt can be determined.
(FR) Un système de champ proche optique peut servir à des applications de stockage de données optiques. Dans les systèmes de champ proche optique, un alignement précis d'une lentille à immersion solide relativement à une surface de disque est crucial. La correction d'une inclinaison entre la lentille et le disque est réalisée au moyen de faisceaux auxiliaires. La comparaison du signal d'entrefer des faisceaux auxiliaires permet de déterminer la hauteur de l'entrefer et l'inclinaison du disque.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
KR1020080033347EP1905024JP2009500776US20080165632CN101218641MYPI 20063164
IN588/CHENP/2008