Statements (52)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:intellectual_property
|
| gptkbp:application |
military communication
signal transmission research purposes |
| gptkbp:components |
gptkb:lighting_system
gptkb:Mirror_Master receiver photoelectric cell |
| gptkbp:cultural_impact |
featured in literature
influenced popular culture symbol of innovation inspired science fiction historical curiosity |
| gptkbp:exhibits |
light modulation
sound modulation photoelectric conversion |
| gptkbp:field |
gptkb:optics
electrical engineering acoustics telecommunications engineering |
| gptkbp:first_demonstration |
1880
|
| gptkbp:function |
transmit sound via light
|
| gptkbp:has_limitations |
affected by weather conditions
requires direct line of sight |
| gptkbp:historical_significance |
art installations
educational demonstrations historical exhibits science museums research experiments pioneering work in wireless communication |
| https://www.w3.org/2000/01/rdf-schema#label |
Photophone
|
| gptkbp:impact |
early optical communication systems
|
| gptkbp:inspired |
fiber optics
laser communication lightwave communication |
| gptkbp:invention |
gptkb:Alexander_Graham_Bell
1880 US 235,199 radiophone |
| gptkbp:legacy |
influenced future optical technologies
|
| gptkbp:legal_principle |
photoelectric effect
|
| gptkbp:notable_feature |
wireless transmission
early form of wireless technology uses visible light |
| gptkbp:related_to |
gptkb:Telecommunications
|
| gptkbp:successor |
gptkb:Telecommunications
|
| gptkbp:technology |
modulation of light
|
| gptkbp:type |
optical communication device
|
| gptkbp:uses |
sunlight
|
| gptkbp:was_a_demonstration_of |
gptkb:Bell_and_Watson
|
| gptkbp:bfsParent |
gptkb:Alexander_Graham_Bell
|
| gptkbp:bfsLayer |
3
|