首页>
外国专利>
Zoom lens, and video camera and digital still camera using the zoom lens
Zoom lens, and video camera and digital still camera using the zoom lens
展开▼
机译:变焦镜头以及使用该变焦镜头的摄像机和数码相机
展开▼
页面导航
摘要
著录项
相似文献
摘要
A zoom lens, having a camera shake correction function, that is capable of preventing degradation of chromatic aberration while correcting camera shake, and can be small, light-weight and power-saving, is provided. The zoom lens is composed of four groups of lenses having positive, negative, positive and positive refractive powers, arranged in that order from an object side to an image plane side, where a second lens group conducts zooming and a fourth lens group conducts focus adjustment. The second lens group is made of a concave meniscus lens, a concave lens, a double convex lens, and a concave lens, arranged in that order from the object side to the image plane side, and it includes also at least one aspheric surface. A third lens group includes a cemented lens having a cemented surface whose convex surface faces the object side, and can be shifted in a perpendicular direction with respect to an optical axis in order to correct image fluctuations during a camera shake.
展开▼