http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-516870-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fbd3cefb4f504c554f2859b7eee1ff4e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2c7f198a7a8a1e40d59f195df47cd93f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-72 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-72 |
| filingDate | 1938-06-13^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1940-01-15^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-516870-A |
| titleOfInvention | Improvements in luminescent materials |
| abstract | 516,870. Luminescent materials. GENERAL ELECTRIC CO., Ltd., and McKEAG, A. H. June 13, 1938, No. 17492. [Class 39 (i)] A luminescent material contains cadmium, manganese, sodium, fluorine, phosphorus and oxygen and is prepared by a process whose finished product has a crystal structure defined by X-ray spacings as set out in a table in the specification ; when excited by radiation of wave length 2,537 A.U. the emitted light is warm, i.e., departs from white in the red or yellow direction. In one process a mixture of which the components are cadmium phosphate, manganese phosphate and sodium fluoride is heated, the proportions and method being described. The material is used in cathode ray tubes, and with high and low pressure mercury discharge lamps. It may also be used with other luminescent materials. Specification 495,706 is referred to. |
| priorityDate | 1938-06-13^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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