3479247 Bell\'s photo phone, 1880; (add.info.: The transmitter of Bell\'s photo phone: vibrations of the diaphragm D, at the end of the mouthpiece tube, caused pulses of light to be transmitted to the receiver which had light sensitive selenium cell. Dated 1880.); Universal History Archive/UIG; out of copyright.
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Creative#:
TOP27536256
Source:
達志影像
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RM
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須由TPG 完整授權
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19thcentury19centuryXIXcenturyXIXthcenturybellcommunicationcommunicationslightinglightlightedelectricityelectricelectriciteelectricalvibrationsreceivertransmitterseleniumcell1880sreceiverelectriclightdiaphragmelectricalbell19thcenturyelectricityphotophonevibrationstransmitterseleniumcellcommunicationreceiverelectriclightdiaphragmelectricalbell19thcenturyelectricityphotophonevibrationstransmitterseleniumcellcommunication
1880s1919th19th19thXIXXIXthbellbellbellcellcellcellcenturycenturycenturycenturycenturycenturycommunicationcommunicationcommunicationcommunicationsdiaphragmdiaphragmelectricelectricelectricelectricalelectricalelectricalelectriciteelectricityelectricityelectricitylightlightlightlightedlightingphonephonephotophotoreceiverreceiverreceiverseleniumseleniumseleniumtransmittertransmittertransmittervibrationsvibrationsvibrations