Chromophores and auxochromes

Difference between Chromophores and Auxochromes ?

Chromophores:- 

It can be derived from Greek words of chromophorous meaning colour careers it implies on the functional group that can be observe electromagnetic radiation weather the colour is produced or not there by

Auxochrome:-

Auxochrome may be defined as generally lone pair and double bond system any functional group that enhances colour importing property their by increasing the wavelength of chromophore without itself being a chromophore.

Their effect is due to the ability of extend conjugation of chromophones due to non bonding electron.