FIELD: physics.
SUBSTANCE: in a light source, having a vacuum envelope which is at least partially transparent for light and at least partially coated inside by an electroconductive layer and a phosphor layer, which form an anode, inside the vacuum envelope there is at least one cathode with external leads, characterised by that the cathode is in form of a straight tungsten filament with diameter of not more than 20 mcm, which is coated by a layer of material having thermoionic emission, wherein the length of the cathode filament is not less than the maximum size of the phosphor-coated area.
EFFECT: design of a simple, cheap to manufacture structure of an efficient cathodoluminescence source which is suitable for mass production on existing factories for producing incandescent lamps and/or cathodoluminescent indicators.
8 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LIGHT SOURCE | 2011 |
|
RU2479064C2 |
| CATHODIC FLUORESCENT SCREEN | 2006 |
|
RU2322728C1 |
| VACUUM LED (VERSIONS) | 2011 |
|
RU2479066C2 |
| DIODE CATHODE-LUMINESCENT LAMP | 2008 |
|
RU2382436C1 |
| CATHODOLUMINESCENT SCREEN DISPOSED ON ACTIVE MATRIX SUBSTRATE | 2006 |
|
RU2310946C1 |
| CATHODOLUMINESCENT SCREEN | 2005 |
|
RU2312421C2 |
| FIELD-EFFECT CATHODE-LUMINESCENT MATRIX SCREEN | 2005 |
|
RU2298854C1 |
| CATHODOLUMINESCENCE LIGHT SOURCE (ALTERNATIVES) | 2002 |
|
RU2274924C1 |
| CATHODIC FLUORESCENT SCREEN | 1999 |
|
RU2170471C1 |
| ELECTRIC LIGHTING SYSTEM (VERSIONS) | 2012 |
|
RU2505744C2 |
