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    • 1. 发明授权
    • Wide-angle lens and imaging apparatus using the same
    • 广角镜头及使用其的成像装置
    • US08830298B2
    • 2014-09-09
    • US13121022
    • 2009-09-24
    • Issei AbeHayato YoshidaNaoki Moniwa
    • Issei AbeHayato YoshidaNaoki Moniwa
    • G02B13/04G02B13/18H04N5/225G02B13/00G02B9/60
    • G02B13/04G02B9/60G02B13/0045G02B13/18
    • A wide-angle lens comprising: an imaging lens system, including: a front lens group, an aperture, and a rear lens group, arranged in that order from an object side to an image side; wherein said front lens group comprises first and second lens elements, having negative power respectively, and a third lens that is a positive lens, arranged in that order from the object side to an aperture side; wherein said rear lens group comprises fourth and fifth lens elements, having positive power respectively, arranged in order from the aperture side to the image side; where an incident angle to an optical axis of the imaging lens system of a chief ray of a maximum angle of view passing through the aperture is θI, the following Expression 1 is satisfied. 40° (degrees)
    • 一种广角镜头,包括:成像透镜系统,包括:从物体侧到像侧依次配置的前透镜组,光圈和后透镜组; 其中所述前透镜组包括分别具有负功率的第一和第二透镜元件和作为正透镜的第三透镜,从物体侧到孔侧依次布置; 其中所述后透镜组包括分别具有正光焦度的第四和第五透镜元件,从孔侧到像侧依次布置; 其中通过孔径的最大视角的主光线的成像透镜系统的光轴的入射角为&It; I,满足以下表达式1。 40°(度)<&thetas; I <60°(度)表达式1。
    • 2. 发明申请
    • WIDE-ANGLE LENS AND IMAGING APPARATUS USING THE SAME
    • 使用相同的宽角镜头和成像装置
    • US20110169912A1
    • 2011-07-14
    • US13121022
    • 2009-09-24
    • Issei AbeHayato YoshidaNaoki Moniwa
    • Issei AbeHayato YoshidaNaoki Moniwa
    • G02B13/04H04N5/225G02B13/18
    • G02B13/04G02B9/60G02B13/0045G02B13/18
    • A wide-angle lens comprising: an imaging lens system, including: a front lens group, an aperture, and a rear lens group, arranged in that order from an object side to an image side; wherein said front lens group comprises first and second lens elements, having negative power respectively, and a third lens that is a positive lens, arranged in that order from the object side to an aperture side; wherein said rear lens group comprises fourth and fifth lens elements, having positive power respectively, arranged in order from the aperture side to the image side; where an incident angle to an optical axis of the imaging lens system of a chief ray of a maximum angle of view passing through the aperture is θI, the following Expression 1 is satisfied. 40° (degrees)
    • 一种广角镜头,包括:成像透镜系统,包括:从物体侧到像侧依次配置的前透镜组,光圈和后透镜组; 其中所述前透镜组包括分别具有负功率的第一和第二透镜元件和作为正透镜的第三透镜,从物体侧到孔侧依次布置; 其中所述后透镜组包括分别具有正光焦度的第四和第五透镜元件,从孔侧到像侧依次布置; 其中通过孔径的最大视角的主光线的成像透镜系统的光轴的入射角为&It; I,满足以下表达式1。 40°(度)<&thetas; I <60°(度)表达式1
    • 6. 发明授权
    • Wide-angle lens and image pickup apparatus
    • 广角镜头和摄像装置
    • US08116013B2
    • 2012-02-14
    • US12728556
    • 2010-03-22
    • Hayato YoshidaIssei AbeNaoki Moniwa
    • Hayato YoshidaIssei AbeNaoki Moniwa
    • G02B13/18
    • G02B13/06G02B9/60G02B13/18
    • Disclosed is a wide-angle lens having a viewing angle of more than 130°. The wide angle lens has a front group, an aperture, and a rear group arranged in this order from an object side to an image side. The front group has a first lens as a negative lens, a second lens as a negative lens, and a third lens as a positive lens arranged from the object side to the image side. The rear group is a cemented lens having a positive power when two lenses are bonded to each other. The wide-angle lens constitutes an image forming system with the five lenses as a whole, the first lens and the second lens of the front group are aspherical lenses, and the third lens is a spherical lens.
    • 公开了具有大于130°的视角的广角镜头。 广角镜具有从物体侧到像侧依次排列的前组,孔和后组。 前组具有作为负透镜的第一透镜,作为负透镜的第二透镜,以及从物侧设置到像侧的作为正透镜的第三透镜。 当两个透镜彼此接合时,后组是具有正功率的胶合透镜。 广角镜头构成了具有整个五个透镜的图像形成系统,前组的第一透镜和第二透镜是非球面透镜,并且第三透镜是球面透镜。
    • 7. 发明申请
    • WIDE ANGLE LENS AND IMAGING DEVICE
    • 宽角镜头和成像装置
    • US20120026285A1
    • 2012-02-02
    • US13256271
    • 2010-03-15
    • Hayato YoshidaNaoki MoniwaIssei Abe
    • Hayato YoshidaNaoki MoniwaIssei Abe
    • G02B13/18H04N5/225G02B13/04
    • A wide angle lens whose field angle exceeds 180 degrees includes a front group, a diaphragm, and a rear group arranged in this order from an object side toward an image side. The front group includes a first lens (negative meniscus lens) whose convex surface faces the object side, a second lens (negative lens), and a third lens (positive lens) that are arranged in this order from the object side toward the image side. The rear group includes a fourth lens (positive lens), a fifth lens (negative lens), and a sixth lens (positive lens) that are arranged in this order from a diaphragm side toward the image side. Accordingly, an imaging system including six separate lenses is formed. The third lens is made of a material having an Abbe number νdL3 satisfying νdL3
    • 场角超过180度的广角镜头包括从物体侧朝向像侧依次配置的前组,隔膜和后组。 前组包括凸面朝向物体侧的第一透镜(负弯月形透镜),第二透镜(负透镜)和第三透镜(正透镜),其从物侧朝向像侧 。 后组包括从隔膜侧朝向像侧依次布置的第四透镜(正透镜),第五透镜(负透镜)和第六透镜(正透镜)。 因此,形成包括六个分开的透镜的成像系统。 第三透镜由具有满足&ngr; dL3 <21的阿贝数ngr; dL3的材料制成。 第五透镜由具有满足&ngr; dL5 <21的阿贝数ngr; dL5的材料制成。
    • 8. 发明授权
    • Wide angle lens and imaging device
    • 广角镜头和成像装置
    • US08643958B2
    • 2014-02-04
    • US13257446
    • 2010-03-24
    • Issei AbeHayato YoshidaNaoki Moniwa
    • Issei AbeHayato YoshidaNaoki Moniwa
    • G02B9/64G02B13/18
    • G02B13/06
    • A wide angle lens whose field angle exceeds 160 degrees, includes a front group, an aperture stop, and a rear group arranged in this order from an object-side toward an image-side. The front group includes a first lens (negative meniscus) whose convex surface faces the object, a second lens (negative), a third lens (negative), and a fourth lens (positive), arranged in this order from the object-side toward the image-side. The rear group includes a fifth lens (positive), a sixth lens (negative), and a seventh lens (positive), arranged in this order from an aperture-side toward the image-side. The fifth and sixth lenses are combined, forming a cemented lens having positive refractive power. The fifth and sixth lenses are made of materials having Abbe numbers of greater than or equal to 50 and less than or equal to 30, respectively. A surface of the seventh lens facing the image is aspheric.
    • 场角超过160度的广角镜头包括从物体侧朝向图像侧依次排列的前组,孔径光阑和后组。 前组包括凸面朝向物体的第一透镜(负弯月面),第二透镜(负像),第三透镜​​(负像)和第四透镜(正),从物侧朝向 图像侧。 后组包括从孔径侧向图像侧依次排列的第五透镜(正),第六透镜(负像)和第七透镜(正)。 组合第五和第六透镜,形成具有正折光力的胶合透镜。 第五和第六透镜分别由阿贝数大于等于50且小于等于30的材料制成。 面对图像的第七透镜的表面是非球面的。