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公开(公告)号：US20120194730A1
公开(公告)日：2012-08-02
申请号：US13357468
申请日：2012-01-24
CPC分类号： G02B15/173 , G02B13/18 , H04N5/2254
摘要： A zoom lens includes a first lens group of positive refractive power; a second lens group of negative power; a third lens group of positive power; a fourth lens group of negative power, and a fifth lens group of positive power arranged from the object side to the image side. At activation of variable power from the wide angle end to the telescopic end, the first, third, fourth and fifth lens groups moves so as to get closer to the object side or the image side at the telescopic end than at the wide angle end; and a gap between the first lens group and the second lens group increases; a gap between the second lens group and the third lens group decreases; a gap between the third lens group and the forth lens group increases; and a gap between the forth lens group and the fifth lens group increases.
摘要翻译： 变焦透镜包括正屈光力的第一透镜组; 负功率的第二透镜组; 第三透镜组正功率; 负功率的第四透镜组和从物体侧到像侧布置的正功率的第五透镜组。 在从广角端到伸缩端的可变功率的激活中，第一，第三，第四和第五透镜组移动以便在伸缩端处比在广角端更靠近物体侧或像侧; 并且第一透镜组和第二透镜组之间的间隙增加; 第二透镜组和第三透镜组之间的间隙减小; 第三透镜组和第四透镜组之间的间隙增加; 并且第四透镜组和第五透镜组之间的间隙增加。
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公开(公告)号：US08564711B2
公开(公告)日：2013-10-22
申请号：US13357468
申请日：2012-01-24
CPC分类号： G02B15/173 , G02B13/18 , H04N5/2254
摘要： A zoom lens includes a first lens group of positive refractive power; a second lens group of negative power; a third lens group of positive power; a fourth lens group of negative power, and a fifth lens group of positive power arranged from the object side to the image side. At activation of variable power from the wide angle end to the telescopic end, the first, third, fourth and fifth lens groups moves so as to get closer to the object side or the image side at the telescopic end than at the wide angle end; and a gap between the first lens group and the second lens group increases; a gap between the second lens group and the third lens group decreases; a gap between the third lens group and the forth lens group increases; and a gap between the forth lens group and the fifth lens group increases.
摘要翻译： 变焦透镜包括正屈光力的第一透镜组; 负功率的第二透镜组; 第三透镜组正功率; 负功率的第四透镜组和从物体侧到像侧布置的正功率的第五透镜组。 在从广角端到伸缩端的可变功率的激活中，第一，第三，第四和第五透镜组移动以便在伸缩端处比在广角端更靠近物体侧或像侧; 并且第一透镜组和第二透镜组之间的间隙增加; 第二透镜组和第三透镜组之间的间隙减小; 第三透镜组和第四透镜组之间的间隙增加; 并且第四透镜组和第五透镜组之间的间隙增加。
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