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发明授权
CN107229106B 光学成像镜头 有权

光学成像镜头
摘要：
本发明公开了光学成像镜头。从物侧至像侧沿一光轴依序包括一第一透镜、一第二透镜、一第三透镜、一第四透镜、一第五透镜及一第六透镜，其中第一透镜至第六透镜各自包括一朝向物侧且使成像光线通过的物侧面及一朝向像侧且使成像光线通过的像侧面。第一透镜的材质为塑料，且第二透镜的材质为塑料。第三透镜具有正屈光率，且第三透镜的像侧面具有一位于光轴附近区域的凹面部，第四透镜具有负屈光率，且第四透镜的物侧面具有一位于光轴附近区域的凹面部。第五透镜的物侧面具有一位于光轴附近区域的凹面部，且第六透镜的材质为塑料。所述光学成像镜头可在有效缩短镜头长度的同时确保成像质量及达成望远的功效。
摘要（英）：

An optical imaging lens includes a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element from an object side to an image side in order along an optical axis. The first lens element to the sixth lens element each include an object-side surface and an image-side surface. The first and second lens elements are made of plastic material. The image-side surface of the third lens element has a concave portion in a vicinity of the optical axis. The fourth lens element has negative refracting power. The object-side surface of the fourth lens element has a concave portion in a vicinity of the optical axis. The object-side surface of the fifth lens element has a concave portion in a vicinity of the optical axis. The sixth lens element is made of plastic material.

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