The Hubble Space Telescope (launched almost 30 years ago) has a pointing stability of 0.007 arcsec. Post repair. Ha ha. The James Webb Space Telescope which replaces the Hubble has a pointing stability of nearly twice Hubble’s. 0.004 arcsec. Since onboard motors and other sources of vibration reduce resolution of the Space Telescope’s optics great efforts are made to isolation vibration on board. You could say the vibration isolation on the Space Telescope is analogous to vibration isolation for a CD player since optics are involved in both cases.
CD players provide a tiny spring system for the laser assembly, which allows the laser freedom of motion during servo movements and also provides some degree of isolation to the laser assembly, since very low frequency vibration would obviously be unwanted, what with the nanoscale data spiral on the CD and the nanoscale laser beam width. This is precisely why CD players benefit from competent, I.e., very low Fr, vibration isolation. The tiny spring system that supports the laser assembly is tuned to too high an Fr to prevent extremely low seismic type vibrations from degrading the laser read operation.
CD players provide a tiny spring system for the laser assembly, which allows the laser freedom of motion during servo movements and also provides some degree of isolation to the laser assembly, since very low frequency vibration would obviously be unwanted, what with the nanoscale data spiral on the CD and the nanoscale laser beam width. This is precisely why CD players benefit from competent, I.e., very low Fr, vibration isolation. The tiny spring system that supports the laser assembly is tuned to too high an Fr to prevent extremely low seismic type vibrations from degrading the laser read operation.