http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005321721-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-00 |
| filingDate | 2004-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_707d85d98b1af17c4def08b60dc6cdcc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7097a6b53c24f8d9f08fa694449f910f |
| publicationDate | 2005-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2005321721-A |
| titleOfInvention | Plastic optical fiber manufacturing apparatus and manufacturing method |
| abstract | PROBLEM TO BE SOLVED: To obtain a plastic optical fiber in which fluctuations in wire diameter are suppressed. A preform including a core and a clad is produced. The preform is inserted into a heating furnace and stretched by heating. The heating furnace is composed of six cylindrical heater units. A spiral protrusion 58 a is formed on the inner peripheral surface of each heater unit 58. The spiral protrusion 58 has a rising angle θ1 of about 63 ° and a pitch P of 30 cm. Six spiral protrusions 58 are formed on the inner peripheral surface of the heater unit 58. The air flow generated in the heater unit 58 is rectified by the spiral protrusions 58 so that the temperature distribution in the heater unit 58 becomes uniform, and fluctuations in the wire diameter during melt drawing are suppressed. [Selection] Figure 6 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2016197588-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023054141-A1 |
| priorityDate | 2004-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 124.