http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101165476-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-0006 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1353 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/G02B13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-13925 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-18 |
| classificationIPCInventive | 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 |
| filingDate | 2005-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2012-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101165476-B1 |
| titleOfInvention | Objective lens, optical pickup unit and optical disc drive unit |
| abstract | An objective lens of an optical pickup apparatus for reproducing and / or recording information by condensing on the information recording surface of the first to third optical information recording media, wherein the objective lens is common to the first to third optical information recording media. An objective lens having a single lens configuration, wherein the optical surface of at least one of the objective lenses is divided into at least two regions of a central region including an optical axis and a peripheral region surrounding the central region. A first diffraction structure is formed in the central region, and the objective lens receives diffracted light having the same order of diffraction light of the first to third beams generated by the first diffraction structure, respectively. A first diffraction structure condensed on an information recording surface of an optical information recording medium, a second diffraction structure is formed in the peripheral region, and the objective lens is generated by the second diffraction structure; Among the diffracted light beams of the second light beam, diffraction light beams of different orders are condensed onto the information recording surfaces of the first and second optical information recording media, respectively.n n n n Diffraction Structure, Laser Module, Center Area, Optical Pickup Device, Light Receiver, Prism, Photodetector |
| priorityDate | 2004-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 171.