| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13aa7b32ae00ed83af7dfaa0b6a1f7c2 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-0006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-13727
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-0013
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-13471
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F2203-18 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0068
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1374
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-13922
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1353
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-13925
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1275
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1378
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B13-18 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1347 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-125
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-135
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-00 |
| filingDate |
2001-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a9600391cfaf8d82b27315081377dc5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46b0c844ce6d25ec27929c35f0b7543b |
| publicationDate |
2001-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0186644-A2 |
| titleOfInvention |
Optical pick-up apparatus |
| abstract |
An optical pickup apparatus for conducting recording and/or reproducing information of an optical information recording medium, comprises a light source; a converging optical system having an objective lens; and a photo-detector. The converging optical system comprises a plastic lens and a spherical aberration deviation correcting element to correct deviation of a spherical aberration of the converging optical system. A numerical aperture of the objective lens at an image-side is 0.65 or more. |
| priorityDate |
2000-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |