http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009277352-A
Outgoing Links
| 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/G02B3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1374 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-18 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/G02B13-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1367 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-135 |
| filingDate | 2009-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7aa04a2410eb001e6da7c1e993a590a0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d21e9afc8665a1ae05ad634701ae3793 |
| publicationDate | 2009-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2009277352-A |
| titleOfInvention | Objective lens, optical pickup device, and optical information recording / reproducing device |
| abstract | An objective lens applicable to an optical pickup device that records and / or reproduces information with respect to a plurality of types of optical information recording media using light beams of different wavelengths, and has a wavelength dependency of spherical aberration. Provided are a small objective lens, an optical pickup apparatus using the objective lens, and an optical information recording / reproducing apparatus equipped with the optical pickup apparatus. An objective lens according to the present invention is an objective lens used in an optical pickup device, and has spherical aberration when the wavelength of a light beam incident on one surface of a lens having power is made longer. Superimposition that superimposes the first optical path difference providing structure that changes in the undercorrected direction and the second optical path difference providing structure in which the spherical aberration changes in the overcorrected direction when the wavelength of the incident light beam is longer. Structure. [Selection] Figure 6 |
| priorityDate | 2005-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419530175 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID123105 |
Total number of triples: 24.