Far-infrared emitting cathode ray tube
US5686781A · kind A · utility
23Cited by
10References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1996 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Dec 6, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode ray tube which emits harmful electromagnetic waves includes far-infrared emitting material which emits far-infrared rays which reduce the harmful effects of electromagnetic waves. The far-infrared emitting cathode ray tube is obtained by including far-infrared emitting material in at least one of a phosphor layer, a black matrix, an outer graphite layer, and a shadow mask. This far-infrared emitting cathode ray tube provides a user favorable work place by reducing the harmful effects of electromagnetic waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.