OPTICAL SYSTEM AND CAMERA MODULE INCLUDING SAME
A zoom optical system according to an embodiment of the present invention includes a first lens group, a second lens group, a third lens group, and a fourth lens group disposed in order in a direction from an object side to an image side, in which the second lens group and the third lens group are m...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | A zoom optical system according to an embodiment of the present invention includes a first lens group, a second lens group, a third lens group, and a fourth lens group disposed in order in a direction from an object side to an image side, in which the second lens group and the third lens group are movable, a total track length (TTL) is less than 20 mm, and an effective focal length (EFL) is greater than 25 mm at a telephoto.
根据本发明的实施例的变焦光学系统包括在从物侧至像侧的方向上顺序设置的第一透镜组、第二透镜组、第三透镜组和第四透镜组，其中，第二透镜组和第三透镜组可移动，总轨道长度(TTL)小于20mm，并且在长焦下，有效焦距(EFL)大于25mm。 |
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