Global Patent Index - EP 2006850 A9

EP 2006850 A9 2009-02-25 - OPTICAL PICKUP AND INFORMATION DEVICE

Title (en)

OPTICAL PICKUP AND INFORMATION DEVICE

Title (de)

OPTISCHE AUFNAHMEVORRICHTUNG UND INFORMATIONSEINRICHTUNG

Title (fr)

LECTEUR OPTIQUE ET DISPOSITIF D'INFORMATIONS

Publication

EP 2006850 A9 (EN)

Application

EP 07740365 A

Priority

  • JP 2007056927 W
  • JP 2006095904 A

Abstract (en)

[origin: EP2006850A2] An optical pickup (100) includes: (i) a light source (101) for emitting a laser beam; (ii) diffraction means (101) for diffracting the emitted laser beam into 0-th degree light and diffracted light; (iii) an optical system (105, etc.) for introducing the diffracted 0-th degree light and the diffracted light into one of recording layers; (iv) an optical element (111, etc.) for changing the polarization direction of a part of signal light generated in one recording layer and the polarization direction of a part of stray light generated in the other recording layer; and (v) light receiving means (PD1a, etc.) for receiving at least the signal light.

IPC 8 full level (invention and additional information)

G11B 7/135 (2012.01)

CPC (invention and additional information)

G11B 7/1381 (2013.01); G11B 7/1353 (2013.01); G11B 7/1367 (2013.01); G11B 7/0903 (2013.01); G11B 7/0909 (2013.01); G11B 2007/0013 (2013.01)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 2006850 A2 20081224; EP 2006850 A4 20090506; EP 2006850 A9 20090225; JP 4726254 B2 20110720; JP WO2007114280 A1 20090820; US 2009274031 A1 20091105; US 8072868 B2 20111206; WO 2007114280 A1 20071011

INPADOC legal status


2011-11-09 [18R] REFUSED

- Effective date: 20110526

2011-05-26 [REG DE R003] REFUSAL DECISION NOW FINAL

2011-01-05 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: PIONEER CORPORATION

2009-10-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20090923

2009-05-06 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20090402

2009-05-06 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR GB

2008-12-24 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081007

2008-12-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB