FIELD: lighting units and devices. SUBSTANCE: glass holder surface is coated with carbon layer. Layer mass is not over 1/36 of filament body mass. Tungsten particles evaporating from filament and carbon layer react to yield W2C. EFFECT: reduced scattering of tungsten particles on inner wall of bulb. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ELECTRIC FILAMENT LAMP | 2015 |
|
RU2576655C1 |
| INCANDESCENT LAMP | 1991 |
|
RU2020653C1 |
| ELECTRIC FILAMENT LAMP | 1992 |
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