| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3b76b21cd1b55ee58549bc3ba5545a11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d72339a6b893476ba374b394b9685349 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21K9-232
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02B20-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L33-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L33-504
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-7738
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77348
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-7734
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-77342 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L33-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F21K99-00 |
| filingDate |
2012-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96f19c0728ea0cebc27ed3c469c1a1ff
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_297736612dcfad6170d05a3872d560de |
| publicationDate |
2014-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2772952-A1 |
| titleOfInvention |
White light source and white light source system using white light source |
| abstract |
The present invention provides a white light source comprising: a light emitting diode (LED) having a light emission peak wavelength in a range of 350 or more and 420 nm or less; and a phosphor layer including four or more types of phosphors and resin, wherein the white light source satisfies a relational equation of: -0.2 ≤ [(P(λ) × V(λ)) / (P(λmax1) × V(λmax1)) - (B(λ) × V(λ)) / (B(λmax2) × V(λmax2))] ≤ +0.2, assuming that: a light emission spectrum of the white light source is P(λ); a light emission spectrum of black-body radiation having a same color temperature as that of the white light source is B(λ); a spectrum of a spectral luminous efficiency is V(λ); a wavelength at which P(λ) × V(λ) becomes largest is λmax1; and a wavelength at which B(λ) × V(λ) becomes largest is λmax2, and wherein an amount (difference) of chromaticity change on CIE chromaticity diagram from a time of initial lighting up of the white light source to a time after the white light source is continuously lighted up for 6000 hours is less than 0.010. According to the above white light source, there can be provided a white light source capable of reproducing the same light emission spectrum as that of natural light. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-4243096-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11094679-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11721675-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-4009386-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10378709-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3276679-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3708902-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-4024454-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11430771-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112672637-A |
| priorityDate |
2011-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |