Sujet

Photograph of a technician holding a laser 'demodulator' used to convert laser light beams into television signals and radio sounds

Légende

Photograph of a technician holding a laser 'demodulator' used to convert laser light beams into television signals and radio sounds. A 'modulator' first changes the laser beam so it can carry TV, Radio or Telephone messages. The demodulator was developed by National Engineering Science Company and Douglas Aircraft Company. Dated 20th Century

Date

20e siècle

Crédit

Photo12/Ann Ronan Picture Library

Notre référence

ARP23A16_038

Licence

Droits gérés

Format disponible

60,0Mo (3,3Mo) / 35,7cm x 42,1cm / 4220 x 4969 (300dpi)

Mots clés

20th Century Photograph Photography Technician Laser Laser Beam Light Beam Light Light Beams Convert Conversion Television Signal Television Signal Signals Radio Radio Sounds Modulator Telephone Telephone Messages Communication Communicate Physics History of Physics History of Science Science 20th Century