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

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Size: 5120px × 4096px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 20th, archival, archive, beam, beams, century, communicate, communication, conversion, convert, historical, history, laser, light, messages, modulator, photograph, photography, physics, radio, science, signal, signals, sounds, technician, telephone, television