File:Compact Disc Numerical Aperture.svg
| Description |
English: Compact disks are made of 1.2 mm thick polycarbonate plastic with a refractive index of 1.55. The laser light is focused down to 1 µm, but at the surface the diameter is 0.8 mm, making the readout insensitive to dust specks. |
||
| Date | |||
| Source | Own work | ||
| Author | Pieter Kuiper | ||
| Permission (Reusing this file) |
|
||
| SVG development | Category:Valid SVG created with Text Editor:Diagrams |