公开(公告)号：US20110149408A1

公开(公告)日：2011-06-23

申请号：US12442287

申请日：2007-09-21

申请人： Karl H. Hahgholt ,  Dag Thorsten Wang ,  Frode Tyholdt ,  Wilfred E. Booij ,  Ib-Rune Johansen

发明人： Karl H. Hahgholt ,  Dag Thorsten Wang ,  Frode Tyholdt ,  Wilfred E. Booij ,  Ib-Rune Johansen

IPC分类号： G02B3/14 ,  G02B1/12 ,  B05D5/12

CPC分类号： G02B3/14 ,  G02B3/0081

摘要： The invention relates to an optical element having adjustable focal length comprising a first transparent layer having a chosen flexibility and being provided with a piezoelectric layer adapted to contract upon the application of an electrical voltage and thus bend the first transparent layer, the piezoelectric layer being symmetrically positioned relative to an axis, and wherein the first transparent layer is applied on a substrate having a through going cavity positioned essentially symmetrical relative to said axis, and a transparent polymer being positioned in said cavity having a surface contact with said first transparent layer.

摘要翻译： 本发明涉及一种具有可调节焦距的光学元件，其包括具有选择的柔性的第一透明层，并且具有压电层，该压电层适于在施加电压时收缩，从而弯曲第一透明层，压电层对称 并且其中所述第一透明层被施加在具有相对于所述轴线基本对称定位的通孔的基底上，并且位于所述空腔中的透明聚合物与所述第一透明层具有表面接触。