| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f648f4f757a5a76f3aba8d29a50d53cc |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B3-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B3-12 |
| filingDate |
2004-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2008-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d00da764b9c7b47ba7bac25e1cde420
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_392c910db8c232cb4b9deb81909605c8 |
| publicationDate |
2008-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7441896-B2 |
| titleOfInvention |
Macular pigment measurements |
| abstract |
Apparatus for use in measuring the density and spatial distribution of macular pigment in an eye comprises a camera ( 4 ) for capturing a color image of an eye, at least one filter ( 36 ) for filtering light reaching the camera (preferably by filtering the light illuminating the eye). The filter ( 36 ) has a transmission spectrum with one peak in the region of light absorbed by the pigment and another peak in a region where no such absorption occurs. The filter increases the sensitivity of the camera to macular pigment while enabling the effect of other pigments to be reduced or eliminated. A method of measuring macular pigment involves obtaining a color image of an eye, the image having two color components each having a spectrum having a respective one of said peaks. Corresponding portions of the components are mathematically combined so as to provide a measurement of macular pigment density and the results of the combination are used to provide an output representative of the contribution of macular pigment to the image. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009002629-A1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9445715-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008231804-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010241450-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9095279-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8408702-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8632179-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014098344-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11707194-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016367128-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10548471-B2 |
| priorityDate |
2003-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |