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    • 4. 发明授权
    • Imaging lens
    • 成像镜头
    • US07715119B2
    • 2010-05-11
    • US12413090
    • 2009-03-27
    • Minoru Taniyama
    • Minoru Taniyama
    • G02B9/34
    • G02B13/004G02B9/34
    • An imaging lens is provided and includes: in order from an object side of the imaging lens, a first lens having a convex surface on the object side and having a positive power; a second lens having a concave surface on the object side and having a negative power; a third lens having a positive power; and a fourth lens having a convex surface on the object side near a paraxial axis and having a meniscus shape. The imaging lens satisfies conditional expressions as specified.
    • 提供了一种成像透镜,包括:从成像透镜的物体侧起依次具有在物体侧具有凸面并具有正光焦度的第一透镜; 在物体侧具有凹面并具有负电力的第二透镜; 具有正功率的第三透镜; 以及第四透镜,其在靠近近轴的物体侧具有凸面,并且具有弯月面形状。 成像透镜满足规定的条件表达式。
    • 6. 发明授权
    • Imaging lens
    • 成像镜头
    • US07423820B2
    • 2008-09-09
    • US11717134
    • 2007-03-13
    • Minoru Taniyama
    • Minoru Taniyama
    • G02B1/00
    • G02B13/0035G02B9/16
    • An imaging lens is provided and includes: in order from an object side of the imaging lens, a first lens having a convex surface directed to the object side on an optical axis and having a positive power; an aperture diaphragm placed between a top position of an object-side surface of the first lens and a position of an image-side surface of the first lens on the optical axis; a second lens having a meniscus shape with a concave surface directed to the object side on the optical axis; and a third lens having a meniscus shape with a convex surface directed to the object side on the optical axis. Further, the imaging lens satisfies specific conditional expressions.
    • 提供了一种成像透镜,包括:从成像透镜的物体侧起依次具有在光轴上朝向物体侧的凸面并具有正光焦度的第一透镜; 放置在第一透镜的物体侧表面的顶部位置和第一透镜的图像侧表面在光轴上的位置之间的孔径光阑; 第二透镜,具有在光轴上具有指向物体侧的凹面的弯液面形状; 以及具有在光轴上朝向物体侧的凸面的弯液面形状的第三透镜。 此外,成像透镜满足特定条件表达式。
    • 7. 发明申请
    • IMAGING LENS
    • 成像镜头
    • US20070229981A1
    • 2007-10-04
    • US11727574
    • 2007-03-27
    • Kenichi SatoMinoru Taniyama
    • Kenichi SatoMinoru Taniyama
    • G02B13/18
    • G02B13/18G02B9/16G02B13/0035
    • An imaging lens comprises, in order from an object side: a first lens having a positive refractive power; a second lens having a negative refractive power whose concave surface faces to the object; and a third lens having a positive refractive power and having a meniscus form that has a convex surface, facing to the object, in a portion at and around an optical axis of the imaging lens; wherein the first, second and third lenses have at least one aspheric surface, and wherein the imaging lens satisfies conditional expressions given below: 0.7
    • 成像透镜从物体侧依次包括具有正折光力的第一透镜; 具有凹面朝向物体的负屈光力的第二透镜; 以及第三透镜,其具有正屈光力并且具有弯月形,其在成像透镜的光轴的周围和周围具有面向物体的凸表面; 其中所述第一,第二和第三透镜具有至少一个非球面,并且其中所述成像透镜满足以下给出的条件表达式:<?in-line-formula description =“In-line Formulas”end =“lead”?> 0.7 < f1 / f <1.3(1)<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead” ?> 0.2 <?in-line-formula description =“In-line Formulas”end =“lead”?> 0.3 <| f2 / f | <0.8(3)<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“ 在线公式“end =”lead“?> 0.5 其中f:焦距 f 1:第一透镜的焦距,f 2:第二透镜的焦距,f 3:第三透镜的焦距,以及D 2:在光轴上的间隔, 在第一透镜和第二透镜之间。
    • 10. 发明授权
    • Imaging lens
    • 成像镜头
    • US07595939B2
    • 2009-09-29
    • US11730105
    • 2007-03-29
    • Kenichi SatoMinoru Taniyama
    • Kenichi SatoMinoru Taniyama
    • G08B9/14
    • G02B13/0035G02B9/12G02B9/16
    • An imaging lens includes first to third lenses G1 to G3 arranged in order from a object side. The first lens has a biconvex shape in a vicinity of an optical axis Z1. The second lens has a concave surface facing a object side. The second lens has a negative refractive power. The third lens has a positive or negative refractive power and has a meniscus shape containing, in a vicinity of the optical axis, a convex surface facing the object side. The following conditional expression is satisfied: 0.7
    • 成像透镜包括从物体侧依次布置的第一至第三透镜G1至G3。 第一透镜在光轴Z1附近具有双凸形状。 第二透镜具有面向物体侧的凹面。 第二透镜具有负折光力。 第三透镜具有正或负折射光焦度,并且具有弯月面形状,其在光轴附近包含面向物体侧的凸面。 满足以下条件表达式:<?in-line-formula description =“In-line Formulas”end =“lead”?> 0.7 <?in-line-formula description =”In-line Formulas“end =”lead“?> 0.2 <= D2 / f <0.5 <?in-line-formula description = 线公式“end =”tail“?>其中f表示成像透镜的整个系统的焦距,f1表示第一透镜G1的焦距,D2表示第一透镜G1之间的光轴Z1上的间隔 和第二透镜G2。