http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2195787-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5bc6329f1652a98d1bf01ed895706912 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-285 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-28 |
| filingDate | 1987-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_887a2a63a8df8d49698cfca2a274eb20 |
| publicationDate | 1988-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2195787-A |
| titleOfInvention | Interference filter |
| abstract | An interference filter, also referred to as a notch filter, of the type which reflects a certain wavelength band within a given wavelength range while letting pass other wavelength bands of the said range, is designed for operation in the visual and infra-red regions of the electromagnetic spectrum and comprises at least one pair of high and low index of refraction light transmitting layers on a light transmitting substrate, each layer of the or each layer pair being of a non quarter-wave unequal thickness with respect to its complementary layer and each layer pair having an overall optical thickness adding up to in total to a half-wave thickness. The technique of degrading a standard quarter wavelength layer is also employed on a curved surface substrate with non-uniform layers, where one layer of a layer pair increases from the centre to the periphery of the substrate and the other layer of the pair decreases from the centre to the periphery of the substrate; a half-wave optical thickness being maintained throughout the layer pair. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5394501-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5333090-A |
| priorityDate | 1986-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.