| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44b24d94012a06c3a6140e0eb9d15492
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a7e65e0e699df2dea7c9c5c655e67922
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f2e6fd5082659e0f35f112e1283cdce4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2009-00872
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2009-00855
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B2017-00707
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B2017-00725 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G09B23-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-00804
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-00814
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-008 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B17-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F9-008 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F9-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G09B23-30 |
| filingDate |
1993-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa97ce651d93cf75e75c1ddbac3b9a21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eea87da5462db53a19e199df93760626 |
| publicationDate |
1994-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9416425-A1 |
| titleOfInvention |
Laser calibration device |
| abstract |
A phantom cornea (5) for calibrating surgical lasers is formed by superimposition of thin-films (6-9) of alternating colors. After ablation by a laser beam, the resulting spherical cavity appears as a pattern (12) of nested circles whose concentricity and spacing reflect the alignment and intensity of the laser beam. These patterns can be visually or instrumentally analyzed to determine the proper setting of the laser. A monolayer or multi-layer thin film is used to determine, not only the ablative power of a laser beam, but also the variation of the ablative power over the full breadth of the beam by observing the area (29-33) impinged by the beam between successive laser pulses. The calibration cornea can be planar (5), or arcuate (18) to mimic the natural cornea. The calibration cornea may be mounted in a phantom eyeball (24) including a removable iris (26) of small diameter which constitutes a convenient target for the alignment of the laser beam. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2488994-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11771596-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009129829-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8511821-B2 |
| priorityDate |
1993-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |