Philips LaserVision laser disc, 1980s.

 
Philips LaserVision laser disc, 1980s.
4 0 c m
 
39cm
actual image size: 31cm x 32cm

Description

The LaserVision disc was developed and produced by the Philips company as a means of storing film and sound digitally. The LaserVision format evolved from an earlier American system, DiscoVision. A laser beam is focused on the silver surface of a spinning disc, into which pits have been etched or presed. The reflected beam is modulated by these pits, and the information is turned back into video and sound signals. This 30cm diameter disc held both digital audio and analogue video data, which paved the way for the development of the DVD (digital videodisc) in 1995.

© National Media Museum / Science & Society Picture Library

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