Progressive Multifocal Liquid Lenses Based on Asymmetric Freeform Surface Structure of Nonuniform Thickness Elastic Membranes with Different Constraints

Figure 4

Model of geometry and surface structure of membranes. (a) Front view with constraint of two parts of edges clamped. (b) Side view with two directions inclined membrane. (c) Predicted freeform surface structure with constraint of two parts of edges clamped. (d) Front view with constraint of three parts of edges clamped. (e) Side view of a nonuniform thickness membrane. (f) Predicted freeform surface structure with constraint of three parts of edges clamped.

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