Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_006996aeeaf90e1d615560c7a40807a5 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M2021-0044 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61N2005-0662 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L25-0753 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61N5-0618 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L33-502 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05B45-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L33-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61M21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L25-0753 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L33-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L25-075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L33-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05B45-20 |
filingDate |
2020-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8002b2b25b0848ce203c4bfa5072da32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_345c31449bdf5a1fc00ed076d936c00e |
publicationDate |
2020-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-2020373283-A1 |
titleOfInvention |
Methods of producing melanopic emission spectra with high visual quality |
abstract |
A light emitting diode (LED) with a melanopic emission spectrum can comprise a primary light source and a phosphor. The primary light source can comprise an emission spectrum comprising a first peak centered at a wavelength from 480 nm to 500 nm. The phosphor, when excited, can comprise an emission spectrum with a second peak centered at a wavelength from 640 nm to 750 nm, and the intensity of the first peak is greater than the intensity of the second peak. A light emitting apparatus can comprise a first LED with a traditional white light emission spectrum, and a second LED with a melanopic emission spectrum. The light emitted from the apparatus can comprise chromaticity coordinates, in the CIE 1931 color space diagram using the 1964 10° Supplementary Standard Observer, that are within a one-step MacAdam ellipse from the black body locus with chromaticity coordinate x from 0.34 to 0.45. |
priorityDate |
2018-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |