| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ee1c19da359446fb5c4f0458a57b783d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2222-31 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-0248
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1275
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1353
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-30 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-125 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-1353
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-1275 |
| filingDate |
2004-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac5b322382fbd90c068ceeda8d62eca0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a95d7fdcb535bccecec034d1e587089a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ffbecc3b95f1c25f39e836e89a596509 |
| publicationDate |
2006-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1698917-A1 |
| titleOfInvention |
Polarizing diffraction element and optical head device |
| abstract |
A polarizing diffraction element having a wavelength selectivity which functions as a polarizing diffraction element at a wavelength λ 1 , and which does not function as a diffraction grating not depending on incident polarization state and shows high transmittance at a wavelength λ 2 , and an optical head device employing the element, are provided. n The polarizing diffraction element selectively diffracts or transmits incident light having two different wavelengths each containing a first circularly polarized light and a second circularly polarized light having a rotation opposite from the rotation of the first circularly polarized light, depending on wavelength and polarization state of the incident light. Then, a reflective wavelength region for at least the first circularly incident light, does not contain said two incident wavelengths. |
| priorityDate |
2003-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |