171397 ⎘
Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs
Sub-classes:Sensor unit
#2Liquid crystal display
#3INSTRUMENT FOR TESTING AN ELECTRICAL CIRCUIT
#4Configurable colored indicator on computing device
#5Configurable colored indicator on computing device