| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7bccca0a60ce1a899aba44690d0c2394
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd3a6c503663ab78369f973e5e6fc6a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_769aa17089f2b99100d4977665339adf |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B3-1035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B3-036
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B3-0008
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/A61B3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B3-036
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B3-103 |
| filingDate |
1981-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1e6331adfe391e241ff126752614e33 |
| publicationDate |
1981-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0042240-A1 |
| titleOfInvention |
Simplified refractometer |
| abstract |
A method of testing an eye for defocus comprises illuminating the retina with a flash of light from a point source (30); at a position surrounding the point source (30) receiving light reflected by the retina and recording the received light through a radially symmetrical focusing system (22) focused closer than the eye; repeating the illumination and recording the received light through a radially symmetrical focusing system (22) focused beyond the eye; and from the two records determining the direction of any defocus of the eye. |
| priorityDate |
1980-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |