| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1a258fbf53a4ae7f921767140d611c06 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-4205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J9-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-44 |
| filingDate |
2002-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68c26bd5adf41ee32064b8d61c182ea4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e580c927bccaeddc18e8c697813dbfe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51122c4fa0bd0ed4d5ef6ac228601289 |
| publicationDate |
2004-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-2396434-A |
| titleOfInvention |
Focussing element with distorted diffraction grating |
| abstract |
At least one surface of a reflective or transmissive radiation focussing element is provided with at least one phase or amplitude diffraction grating that is distorted substantially according to a quadratic function. The surface or the opposed surface may also be provided with an aperture. The element is useful in three dimensional imaging and wavefront sensing systems. The element may be formed by embossing, selective etching or moulding. |
| priorityDate |
2002-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |