Jim Campbell, Portrait of a Portrait of Harry Nyquist, 2000.

Pixels: 192 LEDs. Image: 28 x 36 cm. Depth: 256 levels.

This work consists of a matrix of 12 x 16 (192) white LEDs, which display a portrait of the well-known engineer who was involved in analog-to-digital conversion theory. The portrait cycles through a sequence of random noise. This image was taken from an obituary photograph. (J.C.)

Excerpt of the documentary Ambiguous Icons, 2001. Courtesy of the artist.