Statements (33)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
incandescent lamp
lighting device |
| gptkbp:application |
photography
projectors general lighting |
| gptkbp:colorTemperature |
2700-3200 K
|
| gptkbp:commonGasFill |
gptkb:argon
gptkb:krypton gptkb:xenon nitrogen |
| gptkbp:contains |
glass bulb
inert gas metal base |
| gptkbp:effect |
10-17 lumens per watt
|
| gptkbp:emits |
infrared radiation
visible light |
| https://www.w3.org/2000/01/rdf-schema#label |
tungsten filament lamp
|
| gptkbp:introducedIn |
1904
|
| gptkbp:inventedBy |
gptkb:William_David_Coolidge
|
| gptkbp:lifespan |
750-2500 hours
|
| gptkbp:marketedAs |
gptkb:General_Electric
gptkb:Philips gptkb:Osram |
| gptkbp:material |
tungsten
|
| gptkbp:operates |
incandescence
|
| gptkbp:operatingSystem |
varies
2500-3000 K |
| gptkbp:replacedBy |
gptkb:LED
fluorescent lamp |
| gptkbp:riskFactor |
fragile glass
hot surface |
| gptkbp:bfsParent |
gptkb:Nernst_lamp
|
| gptkbp:bfsLayer |
5
|