Fluid lens with low energy membrane adjustment

A device comprising a fluid lens, wherein the fluid lens comprises:

• a membrane assembly including a membrane and a peripheral structure, wherein the peripheral structure is disposed around a peripheral portion of the membrane;
• a membrane attachment attached to the peripheral structure;
• a substrate;
• a fluid located within an enclosure formed at least in part by the membrane and the substrate;
• and a support structure, attached to the substrate, wherein:
• the support structure is engaged with the membrane attachment and allows a movement of the membrane attachment along a guide path;
• the movement of the membrane attachment adjusts a focal length of the fluid lens;
• the support structure has a guide surface, and the guide path is determined, at least in part, by a shape of the guide surface;
• the guide path curves inwardly towards an optical center of the fluid lens as the guide path approaches the substrate;
• wherein the membrane attachment comprises a roller, and a portion of the membrane attachment extends through the slot and engages with the curved surface using the roller.