----------- is accredited for his invention of the English concertina, the stereoscope (which is a device for displaying three-dimensional images), and the Playfair cipher (which is an encryption technique).

Charles Wheatstone is credited with inventing the English concertina in 1829, developing an early stereoscope for viewing 3D images, and creating the Playfair cipher with Lyon Playfair. Wheatstone was a prominent 19th-century English inventor and scientist who made significant contributions to telegraphy, acoustics, and optics.