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    • 2. 发明授权
    • Miniature zoom lens
    • 微型变焦镜头
    • US08605371B2
    • 2013-12-10
    • US13158159
    • 2011-06-10
    • Witold Hackemer
    • Witold Hackemer
    • G02B9/34
    • G02B15/177G02B13/001G02B13/009
    • A Miniature zoom lens, in particular for use in mobile telephones, in which the zoom lens, as viewed from the object plane, has the following in the stated sequence: at least one negative first optical lens group, at least one negative second optical lens group, at least one positive third optical lens group, and at least one positive fourth optical lens group. The second, third, and fourth optical lens groups are configured in such a way that focusing is achieved solely by displacement of the fourth optical lens group, and during the focusing the positions of the second and third lens groups remain unchanged.
    • 特别是用于移动电话的微型变焦透镜,其中从物体平面观察变焦透镜在所述顺序中具有以下顺序:至少一个负的第一光学透镜组,至少一个负的第二光学透镜 至少一个正的第三光学透镜组和至少一个正的第四光学透镜组。 第二,第三和第四光学透镜组被配置为仅通过第四光学透镜组的位移来实现聚焦,并且在聚焦期间,第二和第三透镜组的位置保持不变。