http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3733813-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_435f7fafc4b931eae59de228af7272de |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05B47-155 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05B45-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-7774 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L33-507 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-7734 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77342 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L33-502 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L33-504 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-7733 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L25-0753 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77348 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-77 |
| filingDate | 2020-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0acec0fd7699b4e10488e84e45eba79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f691e8d1af4ea1c330c6665e994dfd0d |
| publicationDate | 2020-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3733813-A1 |
| titleOfInvention | Light emitting device |
| abstract | A light emitting device includes a first light source containing a first light emitting element, and a second light source containing a second light emitting element and a second fluorescent material, the first light source emits light in a region that is demarcated in a chromaticity diagram of the CIE 1931 color coordinate system by a first straight line connecting a first point having x,y of 0.280,0.070 in the chromaticity coordinate and a second point having x,y of 0.280,0.500 in the chromaticity coordinate, a second straight line connecting the second point and a third point having x,y of 0.013,0.500 in the chromaticity coordinate, a purple boundary extending from the first point toward a direction decreasing x in the chromaticity coordinate, and a spectrum locus extending from the third point toward a direction decreasing y in the chromaticity coordinate, in a light emission spectrum, a light emission intensity ratio I<sub>PM</sub>/I<sub>PL</sub>of a light emission intensity I<sub>PM</sub>at a wavelength of 490 nm with respect to a light emission intensity I<sub>PL</sub>at a maximum light emission peak wavelength of the first light emitting element is in a range of 0.22 or more and 0.95 or less, the second light source emits light having a color deviation duv from a blackbody radiation locus in a range of -0.02 or more and 0.02 or less measured according to JIS Z8725 with a correlated color temperature in a range of 1,500 K or more and 8,000 K or less in a chromaticity diagram of the CIE 1931 color coordinate system, and the light emitting device emits mixed color light of light emitted from the first light source and light emitted from the second light source. |
| priorityDate | 2019-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 177.