http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4745329-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0b58872e7b58950d0b8433b1c264fad9 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J29-076 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J29-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J9-2272 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J9-2271 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J9-227 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J29-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J29-07 |
| filingDate | 1986-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1988-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2aea9180730c1e005d5bd938fbbd69e0 |
| publicationDate | 1988-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4745329-A |
| titleOfInvention | Front assembly for an ultra-high resolution color cathode ray tube having an improved shadow mask compensated for diffraction and process therefor |
| abstract | A color cathode ray tube is disclosed having a front assembly with a shadow mask characterized by having circular apertures at the mask center, and apertures at least in the mask periphery increasingly elongated radially outwardly as a function of distance from the center. The elongation of the apertures is effective to reduce or eliminate the distortion of the deposits on the mask periphery produced by diffraction effects during photoscreening, and to form phosphor deposits compatible in size and shape with the electron beamlets. The screen of the tube according to the invention may have circular or near-circular phosphor deposits thereon. Tube types to which the invention can be applied include the conventional curved-screen/curved-mask tube, and the substantially flat faceplate tube that has a foil shadow mask suspended in tension a predetermined distance from the screening surface. A method is also disclosed for use in the photo-fabrication of a faceplate for an ultra-high resolution color cathode ray tube. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4950944-A |
| priorityDate | 1986-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.