| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2bb724dd58cbb2a73b244e79b0c9e42 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-958 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F7-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-896 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-958
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-89
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F7-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-896 |
| filingDate |
1973-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1974-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c0ab78cfad69dc300abc21089f96292 |
| publicationDate |
1974-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3792930-A |
| titleOfInvention |
System for determining the nature of optical distortion in glass |
| abstract |
Disclosed is an optical system for determining whether optical distortion of a piece of flat glass is due to index of refraction variations or contours in major surfaces of the glass. A total optical power profile of the glass and a surface contour profile for each major surface of the piece of glass are made. The total optical power profile shows the optical distortion of the glass along a scan path due to contours in each major surface and index of refraction variations. The surface contour profile shows optical distortion of the piece of glass along the scan path due to contours in the surface of the glass. The surface contour profile for each of the surfaces are summed and the sum subtracted from the total optical power profile to determine an internal distortion profile which shows optical distortion of the glass along the scan path due to index of refraction variations. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5559341-A
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| priorityDate |
1973-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |