利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN101165531B 摄像透镜 失效 - 权利终止

摄像透镜
摘要：
本发明提供能够实现光学性能的维持和小型轻量化的摄像透镜。摄像透镜从物体一侧朝向成像面一侧依次配置有：做成凸面朝向物体一侧的具有正焦度的凹凸透镜的第1透镜(2)，可变光阑(3)，做成凸面朝向成像面一侧的具有正焦度的凹凸透镜的第2透镜(4)，以及做成具有负焦度的双凹透镜的第3透镜(5)，并且满足0.11＜d4/f1≤0.25(其中，d4：光轴上第2透镜与第3透镜的间隔；f1：透镜系统整体的焦距)。
摘要（英）：

It is to provide an imaging lens that can maintain optical performance and actualize size and weight reduction. The imaging lens comprises, in order from an object side to an image surface side, a first lens that is a meniscus lens having a positive power whose convex surface faces the object side, a diaphragm, a second lens that is a meniscus lens having a positive power whose convex surface faces the image surface side, and a third lens that is a biconcave lens having a negative power, wherein a condition expressed by 0.11

公开/授权文献
0/0