| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14df928cce1112b89356928855b60351 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-0006 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B13-18
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/G02B3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1367 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-00 |
| filingDate |
2006-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_839fc9d245b2be8ebf52acc13da56cb0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d21e9afc8665a1ae05ad634701ae3793 |
| publicationDate |
2006-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2006209644-A1 |
| titleOfInvention |
Objective lens, optical pickup apparatus and optical information recording and/ or reproducing apparatus |
| abstract |
An objective lens according to the present invention is an objective lens used for an optical pickup apparatus, and the objective lens includes a superimposed structure on a surface of a lens with a power in which a first optical path difference providing structure changing spherical aberration in under-corrected direction when a wavelength of an incident light flux becomes longer, and a second optical path difference providing structure changing spherical aberration in over-corrected direction when a wavelength of an incident light flux becomes longer are superimposed. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7538959-B1 |
| priorityDate |
2005-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |