| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29L2011-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2509-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C2035-0827
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2063-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D11-00269
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-226
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N23-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21V5-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-1525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C39-026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C39-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-041
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21L4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D11-0048 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04
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/B29C39-24 |
| filingDate |
2015-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2019-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2019-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-107076883-B |
| titleOfInvention |
Fresnel lens and optical device having the same |
| abstract |
The present invention provides a Fresnel lens which is excellent in heat resistance, and which can be converted into high-quality light without unevenness and diffused without causing a decrease in central illuminance even when a poor-quality semiconductor light source is used. The Fresnel lens of the present invention is a Fresnel lens having two or more mountain-shaped prisms on the surface, wherein the Fresnel lens is formed from a cured product of a curable composition containing an epoxy compound (A), And in the cross section when the Fresnel lens is cut with a plane that passes through the center point of the Fresnel lens and is perpendicular to the reference plane of the Fresnel lens, a prism in the shape of a mountain with the longest hypotenuse is formed. The surface is roughened. |
| priorityDate |
2014-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |