View all newsletters
Receive our newsletter - data, insights and analysis delivered to you
  1. Technology
July 5, 1987


By CBR Staff Writer

A couple of years back, new break-throughs in erasable optical technologies were being announced in Japan almost weekly, but little has so far come of them, and the consensus in the optical disk industry has been that a magneto-optic technology was likely to be the first viable one for erasable optical disks. Now however, Philips NV, originator of the Compact Disk, believes it may have found a material that uses pure optics for recording and erasing. Pure optical disks record by using a high-power laser to burn minute pits into the surface of the medium, which are then read by a low power laser. Details of Philips’ technology are sketchy but the company says that it has a crystalline material in which the structure breaks down just above its melting point – to create the pit. However when the spot is reheated to just below its melting point, the crystalline structure is restored, thereby erasing the pit.

Content from our partners
Green for go: Transforming trade in the UK
Manufacturers are switching to personalised customer experience amid fierce competition
How many ends in end-to-end service orchestration?

Websites in our network
Select and enter your corporate email address Tech Monitor's research, insight and analysis examines the frontiers of digital transformation to help tech leaders navigate the future. Our Changelog newsletter delivers our best work to your inbox every week.
  • CIO
  • CTO
  • CISO
  • CSO
  • CFO
  • CDO
  • CEO
  • Architect Founder
  • MD
  • Director
  • Manager
  • Other
Visit our privacy policy for more information about our services, how New Statesman Media Group may use, process and share your personal data, including information on your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.