http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005222573-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14df928cce1112b89356928855b60351 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L25-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-135 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-18 |
| filingDate | 2004-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0cc3a224f1bb3bdaaf03bb012b3b885 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa381f10db29dfa81cb2d82cac3eb79b |
| publicationDate | 2005-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2005222573-A |
| titleOfInvention | Plastic optical element and optical pickup device |
| abstract | An object of the present invention is to produce a plastic optical element having high-precision optical characteristics, and to provide an optical pickup device having good pickup characteristics. A repeating unit having an alicyclic structure represented by general formula (1) in a polymer all repeating units having a weight average molecular weight (Mw) of 1,000 to 1,000,000, and a general formula (2) ), 90% by mass or more of the repeating unit (b) having a chain structure represented by the general formula (3) or (4), and the content of the repeating unit (b) is 1% by mass or more and 10% by mass. A resin composition containing an alicyclic hydrocarbon copolymer of less than% and an antioxidant of the general formula [I] and having a melt index of 20 to 60 g / 10 min at 260 ° C. and 2.16 kg is formed. And made of plastic for use in an optical pickup device for reproducing and recording information on an optical information recording medium having an optical path difference providing structure for providing an optical path difference to light passing through the optical surface on one optical surface. Optical element. [Chemical 1] [Chemical 2] [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2018052012-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018052012-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11130724-B2 |
| priorityDate | 2004-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 249.