Tunable lens and method for operating a tunable lens

Tunable lens (1) comprising a fluidic volume (2), a flexible membrane (3) and a shaping element (4), wherein

• the membrane (3) delimits the fluidic volume (2) on one side,
• the shaping element (4) is attached to the membrane (3),
• the shaping element (4) surrounds an optically active region of the membrane,
• the shaping element (4) is arranged to alter optical properties of the tunable lens (1) by deflection,
• in top view the shaping element (4) has a non-circular contour (40), wherein the tunable lens (1) comprises a plurality of actuation points, and the plurality of actuation points comprises a plurality of deflection points (41) and a plurality of retention points (42), and wherein the retention points (42) and the deflection points (41) are spaced apart from one another.