LM of a compact disc

LM of a compact disc

T515/0070 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 28.7MB

Downloadable file size: 3.1MB

Price image Pricing

Please login to use the price calculator


Caption: Light micrograph of a compact disc showing the diffraction of light from the music grooves (top) & plain grooves (colourful bands). The colours are produced by interference between reflected rays of light from adjacent grooves. The disc is made of plastic, which is pressed with a series of fine depressions representing a digitised musical signal capable of being read by a laser. To reflect the laser light, the plastic layer is coated with a metal (aluminium), which follows the depressions exactly. This layer (music layer) is covered by another layer of transparent plastic, which prevents dust & scratches from affecting the sound. Mag:X13 (at 35mm size).

Release details: Model release not required. Property release not required.

Keywords: audio sound, cd, communication, communications, compact disc, diffraction, interference, light, light micrograph, music, technology

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.