| 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/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/G02B5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B13-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1367
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B3-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-135
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-18 |
| filingDate |
2006-01-31-04:00^^<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 |
2007-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20070104206-A |
| titleOfInvention |
Objective lens, optical pickup device and optical information recording and reproducing device |
| abstract |
An objective lens according to the present invention is an objective lens used in an optical pickup device, and when one wavelength of an incident light beam is set to a longer wavelength on one surface of a lens having a power, a first optical path in which spherical aberration changes in a direction that lacks correction It has a superposition structure which superimposed the difference provision structure and the 2nd optical path difference provision structure in which spherical aberration changes in a correction excess direction, when the wavelength of the incident light beam is made into longer wavelength. |
| priorityDate |
2005-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |