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1.发明公开VARIABLE FOCAL LENGTH LENS, AND FOCAL LENGTH ADJUSTING DEVICE AND IMAGING APPARATUS THAT USE THE SAME 有权LINSE MIT VARIABLER BRENNWEITE
公开(公告)号：EP1925963A1
公开(公告)日：2008-05-28
申请号：EP06796693.7
申请日：2006-08-23
CPC分类号： G02B13/0075 , G02B3/14
摘要： A variable focal length lens having a simple structure and capable of being used for applications requiring small size is provided, as well as a focal length adjusting device and an imaging device using the same. A variable focal length lens 10 has a lens 11, a positive electrode 13, and a negative electrode 14. A second layer 11b and a first layer 11a constituting the lens 11 are formed from polyvinyl chloride with which a plasticizer has been mixed. The hardness of these layers is adjusted by adjusting the mixing quantity, plasticizer type, or etc. The second layer 11b is formed so as so cover at least a light transmission region of the first layer 11a. When a voltage is applied between the positive electrode 13 and the negative electrode 14, the second layer 11b and the first layer 11a deform so as to be drawn toward the positive electrode 13, and thereby the curvature of the variable focal length lens 10 varies, and thus the focal length varies.
摘要翻译： 提供了具有简单结构并且能够用于需要小尺寸的应用的可变焦距透镜，以及焦距调节装置和使用该可变焦距透镜的成像装置。 可变焦距透镜10具有透镜11，正极13和负极14.构成透镜11的第二层11b和第一层11a由混合有增塑剂的聚氯乙烯形成。 通过调节混合量，增塑剂型等来调节这些层的硬度。第二层11b形成为至少覆盖第一层11a的透光区域。 当在正电极13和负电极14之间施加电压时，第二层11b和第一层11a变形从而被拉向正电极13，从而可变焦距透镜10的曲率变化， 因此焦距变化。
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公开(公告)号：EP1925963B1
公开(公告)日：2012-02-29
申请号：EP06796693.7
申请日：2006-08-23
CPC分类号： G02B13/0075 , G02B3/14
摘要： A variable focal length lens having a simple structure and capable of being used for an application where small size is required, and a focal length adjusting device and an imaging apparatus that use the lens. The variable focal length lens (10) has a lens (11), a positive electrode (13), and a negative electrode (14). A second layer (11b) and a first layer (11a) constituting the lens (11) are formed of polyvinyl chloride mixed with plasticizer and the hardness of the layers is adjusted by adjusting the mixing amount, type, or the like, of the plasticizer. The second layer (11b) is formed to cover at least a light transmission region of the first layer (11a). When a voltage is applied between the positive electrode (13) and the negative electrode (14), the second layer (11b) and first layer (11a) are deformed to be pulled to the positive electrode (13), and thereby the curvature of the variable focal length lens (10) is varied to vary the focal length.
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