会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • Imaging optical system for cameras
    • 摄像机成像光学系统
    • US20090231734A1
    • 2009-09-17
    • US12288065
    • 2008-10-16
    • Byung-ha Choi
    • Byung-ha Choi
    • G02B9/12
    • G02B13/0035G02B13/18
    • An imaging optical system for cameras comprising a stop, a first lens, a second lens, and a third lens in order from object side to image side. The first lens is convex at the object side, and has positive refractive power and both surfaces of which are aspherical. The second lens is convex at the image side and has negative refractive power. The third lens has a concave surface at its central portion facing the image side and a convex surface at its peripheral portions facing the image side. The imaging optical system satisfies the conditions of the following Inequalities: 0.8
    • 一种用于相机的成像光学系统,包括从物体侧到图像侧的顺序的止挡件,第一透镜,第二透镜和第三透镜。 第一透镜在物体侧是凸的,并且具有正的折光力并且其两个表面都是非球面的。 第二透镜在图像侧是凸的并且具有负折光力。 第三透镜在其朝向图像侧的中心部分具有凹面,在其周边部分处具有面向图像侧的凸面。 成像光学系统满足以下不等式的条件: 0.8 << / mo> L 2 << / mo> 1 < math overflow =“scroll”> 0.5 << / mo> fl f mo> << / mo> 0.86 其中L表示从停止到图像焦点的距离,2Y表示有效图像的对角线长度 f表示成像光学系统的总焦距,f1表示第一透镜的焦距。
        • 4. 发明授权
        • Imaging optical system for cameras
        • 摄像机成像光学系统
        • US07804653B2
        • 2010-09-28
        • US12288065
        • 2008-10-16
        • Byung-ha Choi
        • Byung-ha Choi
        • G02B9/12G02B13/18
        • G02B13/0035G02B13/18
        • An imaging optical system for cameras comprising a stop, a first lens, a second lens, and a third lens in order from object side to image side. The first lens is convex at the object side, and has positive refractive power and both surfaces of which are aspherical. The second lens is convex at the image side and has negative refractive power. The third lens has a concave surface at its central portion facing the image side and a convex surface at its peripheral portions facing the image side. The imaging optical system satisfies the conditions of the following Inequalities: 0.8
        • 一种用于相机的成像光学系统,包括从物体侧到图像侧的顺序的止挡件,第一透镜,第二透镜和第三透镜。 第一透镜在物体侧是凸的,并且具有正的折光力并且其两个表面都是非球面的。 第二透镜在图像侧是凸的并且具有负折光力。 第三透镜在其朝向图像侧的中心部分具有凹面,在其周边部分处具有面向图像侧的凸面。 成像光学系统满足以下不等式的条件:0.8