http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1432346-A4
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2de18362f310a2fe25ced7d9de672a3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B3-103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L31-048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B3-1015 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F2-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B3-103 |
| filingDate | 2002-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa5a41c80d9e03044284bb80f7cab48f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_026fad8dafcbfd7ad68b6732f744e61b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83cf27afd9b03dca76df91a277bae7cc |
| publicationDate | 2006-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1432346-A4 |
| titleOfInvention | ADAPTIVE OPTICAL OPHTHALMIC INSTRUMENTS FOR MEASURING DEVIATIONS OF A HUMAN EYE AND VERIFICATION OF THE OPTICAL COMPENSATION |
| abstract | An improved ophthalmic instrument including an extended source producing light that is formed as an image on the retina of the human eye and reflected there from to produce retinal reflections derived from the extended source, and a wavefront sensor that estimates aberrations in the retinal reflections. The wavefront sensor includes a plurality of subapertures that form a plurality of images of the extended source from the retinal reflections, an imaging device that captures the plurality of images and outputs image data representing the images, and an image processing computer that generates an estimate of the gradient field of the retinal reflections by applying image correlation techniques in the digital domain to the image data. The image processing computer preferably generates an estimate of the local tilt of the retinal reflections incident on a given subaperture by deriving a correlation product for a given image formed by the given subaperture and identifying a peak correlation point of the correlation product. The dimensions of the image of the extended source formed on the retina of the human eye is preferably larger that a diffraction limited spot yet small enough so that different parts of the image do not experience substantially different aberrations while passing through the eye. In addition, the angular size of the image of the extended source is preferably limited so that the plurality of images formed by the subapertures do not overlap. |
| priorityDate | 2001-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.