发明申请
- 专利标题: Deformable Membrane Assemblies
- 专利标题(中): 可变形膜组件
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申请号: US14388751申请日: 2013-03-22
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公开(公告)号: US20150116656A1公开(公告)日: 2015-04-30
- 发明人: Robert Edward Stevens , Alex Edginton , Benjamin Thomas Tristam Holland , Daniel Paul Rhodes , Dijon Pietropinto
- 申请人: Adlens Ltd.
- 申请人地址: GB Oxford
- 专利权人: ADLENS LTD.
- 当前专利权人: ADLENS LTD.
- 当前专利权人地址: GB Oxford
- 优先权: GB1205394.8 20120327; GB1221140.5 20121123; GB1302794.1 20130218
- 国际申请: PCT/GB2013/050747 WO 20130322
- 主分类号: G02B3/14
- IPC分类号: G02B3/14 ; G02C7/08
摘要:
A deformable membrane assembly 1 comprising a fixed support; a fluid-filled envelope, one wall of which is formed by an elastic membrane 8 that is held under tension around its edge by a flexible membrane supporting member 2, 10, the membrane supporting member being coupled to the fixed support at a plurality of discrete control points 120 round the supporting member by respective engaging members for controlling the position of the membrane edge relative to the fixed support at the control points, and the member being unconstrained between said control points; and a selectively operable pressure adjuster for adjusting the pressure of the fluid within the envelope, thereby to adjust the shape of the membrane; wherein at least three control points are provided which are situated round the membrane edge at spaced locations on the member that are selected to increase the energy of the lowest order out-of-plane bending modes of the supporting member in response to loading through tension in the membrane that do not have a node round the whole supporting member. The invention further provides an article of eyewear comprising a deformable membrane assembly of the types described.