CPC G02B 3/14 (2013.01) [G02B 26/004 (2013.01); G02B 26/0858 (2013.01); G02B 27/646 (2013.01); G02C 7/085 (2013.01); H10N 30/1071 (2023.02); H10N 30/2048 (2023.02)] | 10 Claims |
1. An optical lens assembly comprising:
a transparent and flexible membrane, wherein said transparent and flexible membrane is formed in a material having a Young's modulus in the range between 2 MPa and 1,000 MPa;
a transparent back window;
a transparent, deformable, lens body sandwiched between said transparent back window and said transparent, flexible membrane to form a lens with an optical axis being normal to a surface part of said transparent back window, wherein said lens body comprises a polymer network of cross-linked or partly cross-linked polymers, and, wherein said lens body further comprises a miscible oil or combination of oils;
said transparent and flexible membrane being pre-shaped to impress a first overall shape to said transparent and flexible membrane and said non-fluid lens body, wherein with said first overall shape said lens has a substantial, non-zero first optical power;
a rigid frame configured to support a circumference of the membrane; and
an actuator system configured to apply a force to change the overall shape of the membrane and said lens body from the first overall shape to a second overall shape with which the lens has a different optical property;
wherein said actuator system comprises piezoelectric actuators on a surface of said transparent and flexible membrane,
wherein said back window has a planar surface facing the lens body, wherein said lens has a Sag of at least 10 μm when said actuator system is not activated, and
wherein said flexible membrane has a Sag between 10 and 500 μm and an aperture diameter between 1 and 60 mm.
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