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1. (WO2007000682) OPTICAL PICK-UP UNIT FOR USE IN AN OPTICAL PLAYER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/000682 International Application No.: PCT/IB2006/051962
Publication Date: 04.01.2007 International Filing Date: 19.06.2006
IPC:
G11B 7/085 (2006.01) ,G11B 7/125 (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
085
with provision for moving the light beam into, or out of, its operative position.
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
125
Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
Applicants:
ARIMA DEVICES CORPORATION; TrustNet Chambers P.O. Box 3444 Road Town Tortola, VG (AllExceptUS)
DRENTEN, Ronald, R. [NL/NL]; NL (UsOnly)
BOUWMAN, Lambertus, J., M. [NL/NL]; NL (UsOnly)
Inventors:
DRENTEN, Ronald, R.; NL
BOUWMAN, Lambertus, J., M.; NL
Agent:
VISSER, Derk; Electronic Intellectual Property Fairfax House 15 Fulwood Place London WC1V 6HU, GB
Priority Data:
05105694.327.06.2005EP
Title (EN) OPTICAL PICK-UP UNIT FOR USE IN AN OPTICAL PLAYER
(FR) UNITE DE CAPTEUR OPTIQUE UTILISEE DANS UN DISPOSITIF DE LECTURE OPTIQUE
Abstract:
(EN) Optical pick-up unit for scanning a record carrier (14) with a focused radiation beam, called main radiation beam spot (46) having a main radiation beam spot power, comprising: at least one radiation source (20), emitting at least one radiation beam (22); an objective lens (28) being movable by an actuator (30); a detection element (48) for detecting a reflected radiation beam, a means for controlling and changing the radiation beam power of the at least one radiation beam (22), emitted by the at least one radiation source (20); the optical pick-up unit (12) being movable between an inner radius and outer radius of the record carrier (14) during scanning the record carrier (14). The detection element (48) comprises at least three detection element components (52,54,56), to detect a reflected main radiation beam (47) and/or at least two reflected satellite radiation beams.
(FR) L'invention concerne une unité de capteur optique permettant le balayage d'un support (14) d'enregistrement à l'aide d'un faisceau de rayonnement focalisé, désigné sous le nom de point (46) de faisceau de rayonnement principal d'une puissance correspondante, et comprenant au moins une source (20) de rayonnement émettant au moins un faisceau (22) de rayonnement, un objectif (28) amovible par un dispositif (30) de commande, un élément (48) de détection destiné à détecter un faisceau de rayonnement réfléchi, un moyen de commande et de changement de la puissance dudit faisceau (22) de rayonnement émis par ladite source (20) de rayonnement, l'unité de capteur optique (12) étant amovible entre un rayon interne et un rayon externe du support (14) d'enregistrement au cours du balayage du support (14) d'enregistrement. L'élément (48) de détection comprend au moins trois composants (52, 54, 56) de détection d'un faisceau (47) de rayonnement principal réfléchi, et/ou d'au moins deux faisceaux de rayonnement satellite réfléchis.
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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, 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)