http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20020081313-A
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/G02B5-1833 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-135 |
| filingDate | 2001-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2002-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20020081313-A |
| titleOfInvention | Device for reading and/or writing a record carrier |
| abstract | The apparatus for reading and / or recording the recording medium 13 comprises condensing means 35, 45, 47, 106, 108 for focusing the radiation beams 27, 101 emitted from the radiation source 25 on the recording medium 13. ). The condensing means comprises a polarizing means 103 and a diffraction grating 107 of birefringent material. Depending on the polarization direction, the radiation beam 101 is focused on one of two possible surfaces corresponding to each of the DVD 110 and the DVR 109. The diffraction grating 107 is located in the center region of the radiation beam 101 and has a first order diffraction with respect to the first polarization direction of the radiation beam 101 and a second diffraction direction with respect to the second polarization direction of the radiation beam 101. Cause high order diffraction of two. The diffraction grating 107 is made of a birefringent material. |
| priorityDate | 2000-12-11-04:00^^<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/SID415845215 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID141162 |
Total number of triples: 15.