http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9509560-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_62d8143e3329fd2258994081a4ebfe4b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B3-125 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B13-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B3-135 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B3-135 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B3-125 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-00 |
| filingDate | 1994-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46088b436556b01a1fe02f55a7212413 |
| publicationDate | 1995-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9509560-A1 |
| titleOfInvention | Indirect ophthalmoscopy lens for use with slit lamp biomicroscope |
| abstract | The lens (18) of the invention is specifically designed for use with a slit lamp biomicroscope or operating microscope in the examination or treatment of a patient's eye (10). The invention consists of one or more coaxial lens elements, with at least one of the lens elements utilizing at least one convex aspheric surface of revolution. The aspheric surface or surfaces utilized are chosen to correct astigmatic imagery of the lens, with the formed aereal image free of excessive field curvature and astigmatism. The lens is held at a distance from the patient's pupil (14) corresponding to the secondary focal length of the lens. The ratio of the apical radii of curvature of each surface and the ratio of the apical eccentricities of each surface are chosen to optically correct for astigmatic imagery as well as pupil imagery of the lens, being dependent upon the index of refraction of the optical quality glass or plastic used in the production of such lenses. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022165102-A1 |
| priorityDate | 1993-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID467601680 |
Total number of triples: 20.