1 GB in the smallest of spaces
Philips has now developed an optical storage medium in miniature format. The disc, which is only three centimeters in diameter, has almost 1 GB of data. The data stored on it is read out with a blue laser.
That is only 5.6 x 3.4 x 0 According to Philips, the 75 centimeter device has the smallest lens system in the world. This was made possible by reducing the size of the reading unit from 12.5 millimeters, as used in normal systems, to 7.5 millimeters. The extremely flat positioning and focusing unit is also responsible for the success of miniaturization. The use of a lens made of plastic instead of glass, as is normal, also contributed to this. Possible areas of application for this mini memory could be PDAs, cell phones, DigiCams or even MP3 players. As the engineers at Philips also announced, this is not the end of miniaturization. In any case, there is still potential in the drive's control unit, which is currently still on an external circuit board.