Advances in OptoElectronics / 2011 / Article / Fig 12

Review Article

From Spheric to Aspheric Solid Polymer Lenses: A Review

Figure 12

Micrograph of a multiring microlens and thickness measurements; relationship between size, NA value, and focal length (a) before heat treatment; (b) after first heat treatment; (c) after second heat treatment; (d) after third heat treatment; (e) relationship between multiring Teflon pattern size and NA value; (f) relationship between multiring Teflon pattern size and focal length.
197549.fig.0012a
(a)
197549.fig.0012b
(b)
197549.fig.0012c
(c)
197549.fig.0012d
(d)
197549.fig.0012e
(e)
197549.fig.0012f
(f)

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