| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_144e6df376aff36e6dfb74497e78f512 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2224-48247
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-0627
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2015-0693
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2224-48091 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N15-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G08B17-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G08B17-107 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G08B17-107
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-53 |
| filingDate |
2014-12-23^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f66163f365a958e1ee110df07096ab0 |
| publicationDate |
2016-06-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3029648-A1 |
| titleOfInvention |
Scattered light smoke detector with two colour light emitting diodes and a common photosensor or with a two colour light emitting diode and with two photosensors, each in a forward and backwards scattered light arrangement |
| abstract |
The invention relates to a scattered light smoke detector (100) with a detection unit (10) operating according to the scattered light principle. It has a first and second light-emitting diode (1V, 1R) for irradiating particles to be detected and a spectrally sensitive common photosensor (2), the two light-emitting diodes each having a transmitting axis (SA) and the photosensor having a receiving axis (EA). Both LEDs and the photosensor are arranged and aligned with each other such that all axes lie in a common plane (W). The first light-emitting diode is arranged with the photosensor at a forward scattering angle (αV) and the second light emitting diode with the photosensor at a backward spread angle (αR). According to the invention, both light-emitting diodes each have a first and a second LED chip (3, 4) for emitting a respective first and second light bundle (BL, RO) with light in a first and in a second wavelength range different therefrom. Alternatively, the smoke detector has only one light-emitting diode (1) and a first and second photosensor (2V, 2R). The first photosensor is arranged with the light emitting diode at a forward scattering angle and the second photosensor with the light emitting diode at a backward spread angle. According to the invention, the light-emitting diode again has a first and a second LED chip for light in the first and second wavelength ranges. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11127271-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10871452-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112991666-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112562253-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112562253-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107016816-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107016816-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3413279-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3413280-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10852233-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108693142-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020249485-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10339778-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108693142-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10937294-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114340085-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113168752-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113168752-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3675074-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020005375-A1 |
| priorityDate |
2014-12-01^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |