http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0735541-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be92719b856db86c092cc233e9512ca2 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B21-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B21-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01B11-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01M11-00 |
| filingDate | 1993-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3cb9f9d41e5a81d29faddb224dae12f |
| publicationDate | 1995-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0735541-A |
| titleOfInvention | Aspherical shape evaluation device |
| abstract | (57) [Summary] [Object] To provide an aspherical surface shape evaluation device capable of highly accurately evaluating an aspherical surface shape such as an aspherical lens by quantitatively evaluating a deviation of an aspherical surface shape. [Structure] An aspherical surface expression (b.) That most approximates the aspherical surface shape data (a.) Measured by a shape measuring machine is obtained. The difference between the optimum paraxial radius of curvature and the design paraxial radius of curvature is calculated based on the aspherical expression. Based on the difference between the optimum paraxial radius of curvature and the design paraxial radius of curvature, the lowest frequency spherical component of the aspherical surface error is evaluated. First-order deviation (c.) Between the aspherical surface shape data and the aspherical surface formula is obtained. An approximate curve (d.) Of the first-order deviation is obtained. Based on the maximum deviation amount of the approximate curve, the low-frequency aspherical component of the aspherical surface error is evaluated. Separate the quadratic deviation (e.) For the approximation curve of the primary deviation. Based on the average value of the second-order deviation, the surface roughness, which is a high-frequency shape error component of the error of the aspherical surface shape, is evaluated. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I668407-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010210289-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006215020-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011107166-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015165210-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011180159-A |
| priorityDate | 1993-07-21-04:00^^<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/SID419513094 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID28718 |
Total number of triples: 21.