Source google image: https://www.researchgate.net/profile/Fabrice_Vidal/publication/48907628/figure/fig9/AS:669450273574916@1536620791455/Schema-de-principe-de-loptique-adaptative_Q320.jpg
Schema piezo electrique
Source google image: https://www.researchgate.net/profile/Fabrice_Vidal/publication/48907628/figure/fig9/AS:669450273574916@1536620791455/Schema-de-principe-de-loptique-adaptative_Q320.jpg