Vibration damping assembly

A vibration damping assembly for mounting one or more optical elements, comprising:

• a first constraining layer having an upper surface and a lower surface disposed opposite the upper surface;
• a second constraining layer having an upper surface and a lower surface disposed opposite the upper surface;
• a third constraining layer having an upper surface and a lower surface disposed opposite the upper surface;
• a first damping layer disposed between the first and second constraining layers;
• and
• a second damping layer disposed between the second and third constraining layers;
• wherein:
• the second constraining layer is disposed between the lower surface of the first constraining layer and the upper surface of the third constraining layer;
• the upper surface of the second constraining layer is proximal the lower surface of the first constraining layer and the lower surface of the second constraining layer is proximal the upper surface of the third constraining layer;
• the first damping layer comprises a plurality of viscoelastic connecting members each contacting both the lower surface of the first constraining layer and the upper surface of the second constraining layer;
• and
• the second damping layer comprises a plurality of viscoelastic connecting members each contacting both the lower surface of the second constraining layer and the upper surface of the third constraining layer.