http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2012063848-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1275 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-1876 |
| 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/G11B7-1367 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-126 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-00 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/G11B7-1392 |
| filingDate | 2011-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2012063848-A1 |
| titleOfInvention | Objective lens for optical pickup device, optical pickup device and optical information recording / reproducing device |
| abstract | While reducing the cost, it is possible to perform compatibility of the three types of optical discs of BD / DVD / CD with a common objective lens, while improving temperature characteristics and suppressing fluctuations in diffraction efficiency at the time of wavelength change. Provided are an optical pickup device having an objective lens that can be used, an optical information recording / reproducing device, and an objective lens suitable therefor. The first foundation structure and the second foundation structure constituting the first optical path difference providing structure of the objective lens are blazed, and the first foundation structure wheel is placed on one annular zone closest to the optical axis in the second foundation structure. 2 to 5 bands are included. |
| priorityDate | 2010-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 140.