http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1190692-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f4ff9ddf728a7e1a0b36c9cc38b89ad6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J9-233 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J9-233 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J31-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01J9-20 |
| filingDate | 1968-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_135353e005b667fb6c44cfefd49acc56 |
| publicationDate | 1970-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1190692-A |
| titleOfInvention | Method of Manufacturing a Photosensitive Device. |
| abstract | 1,190,692. Images; pick-up tubes; photoconductive targets. TOKYO SHIBAURA ELECTRIC CO. Ltd. 17 May, 1968 [23 May, 1967], No. 23711/68. Headings H1D and H1K. The sensitivity, resolution, stability &c. of a photo-sensitive layer of lead monoxide or other photo-conductive metal oxide are improved by first subjecting the layer to a plasma discharge in a low-pressure oxygen atmosphere and thereafter to an electron beam of 10 to 1000 eV in high vacuum. As applied to a vidicon camera tube, the lead monoxide is deposited on a glass substrate coated with a transparent conductive layer of tin oxide which forms the target of the tube. The tube is heated to 120‹ C. and filled with oxygen at a pressure of, e.g. 0À5 mm. Hg. A voltage of +600V applied to the post-acceleration grid of the tube which is spaced from the layer by about 4 mm., the resultant discharge causing oxidation of the layer with excess oxygen at the surface. The discharge is applied for up to 30 sees. and the effect may be enhanced by illuminating the layer and thus increasing its conductivity. Thereafter, the tube is evacuated and the layer either flooded or scanned by an electron beam of, e.g. 200 eV for between ¢ and 1 hour. During this step, the layer may be heated to 120‹ C. and may be illuminated by, e.g. an incandescent lamp. The effect of the electron bombardment is to remove the excess oxygen. |
| priorityDate | 1967-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.