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    • 41. 发明授权
    • Electronic image pickup apparatus
    • 电子摄像装置
    • US08159532B2
    • 2012-04-17
    • US12077994
    • 2008-03-21
    • Hiroshi KodamaMasahito Watanabe
    • Hiroshi KodamaMasahito Watanabe
    • H04N5/225
    • G03B17/00
    • An electronic image pickup apparatus includes a zoom lens system which is a taking optical system, an electronic image pickup element which is disposed at an image side of the taking optical system (zoom lens system), and which converts an image formed by the taking optical system (zoom lens system) to an electric signal, and an image restoring section which restores electrically a photographed image according to a difference in occurrence of an aberration by the taking optical system (zoom lens system) in an air environment photography and in a underwater environment photography.
    • 电子摄像装置包括作为拍摄光学系统的变焦透镜系统,设置在拍摄光学系统(变焦透镜系统)的像侧的电子摄像元件,并且将由拍摄光学部件形成的图像 系统(变焦透镜系统)到电信号,以及图像恢复部,其根据在空气环境摄影和水中的拍摄光学系统(变焦透镜系统)发生的像差的差异而电摄影拍摄的图像 环境摄影。
    • 43. 发明授权
    • Zoom lens and image pickup apparatus equipped with same
    • 变焦镜头和配备相机的摄像设备
    • US07724448B2
    • 2010-05-25
    • US12315866
    • 2008-12-04
    • Masahito Watanabe
    • Masahito Watanabe
    • G02B15/14
    • G02B15/173G03B17/00
    • A zoom lens has, in order from the object side thereof, a positive first lens unit G1, a negative second lens unit G2, a positive third lens unit G3, a fourth lens unit G4, and an aperture stop S disposed closer to the image side than the second lens unit and closer to the object side than the lens surface closest to the image side in the third lens unit, wherein during zooming from the wide angle end to the telephoto end, the distance between the first lens unit G1 and the second lens unit G2 is larger at the telephoto end than at the wide angle end, the distance between the second lens unit G2 and the third lens unit G3 is smaller at the telephoto end than at the wide angle end, the distance between the third lens unit G3 and the fourth lens unit G4 changes, and the first lens unit G1, the third lens unit G3 and the aperture stop S move in such a way that they are located closer to the object side at the telephoto end than at the wide angle end. The zoom lens satisfies prescribed conditional expressions.
    • 变焦透镜从物体侧依次具有正的第一透镜单元G1,负的第二透镜单元G2,正的第三透镜单元G3,第四透镜单元G4和靠近图像设置的孔径光阑S 并且比在第三透镜单元最靠近图像侧的透镜表面更靠近物体侧,其中在从广角端到望远端的变焦期间,第一透镜单元G1和第二透镜单元G1之间的距离 第二透镜单元G2在望远端比在广角端大,第二透镜单元G2与第三透镜单元G3之间的距离在望远端比在广角端小,第三透镜 单元G3和第四透镜单元G4改变,并且第一透镜单元G1,第三透镜​​单元G3和孔径光阑S以这样的方式移动,使得它们在望远端处比在广角处更靠近物体侧 结束。 变焦透镜满足规定的条件表达式。
    • 45. 发明授权
    • Zoom lens and image pickup apparatus equipped with same
    • 变焦镜头和配备相机的摄像设备
    • US07643224B2
    • 2010-01-05
    • US12313808
    • 2008-11-24
    • Masahito Watanabe
    • Masahito Watanabe
    • G02B15/14
    • G02B15/173
    • A zoom lens includes a positive first lens unit G1, a negative second lens unit G2 and a rear group having a positive refracting power having at least one lens unit. The lens unit located closest to the object side in the rear grout is a third lens unit G3 having a positive refracting power. The zoom lens has an aperture stop S disposed closer to the image side than the second lens unit G2 and closer to the object side than the lens surface located closest to the image side in the third lens unit G3. The zoom lens satisfies a prescribed conditional expression.
    • 变焦透镜包括正的第一透镜单元G1,负的第二透镜单元G2和具有至少一个透镜单元的正折射率的后组。 位于后浆料中最靠近物体侧的透镜单元是具有正折射力的第三透镜单元G3。 变焦透镜具有比第二透镜单元G2更靠近图像侧并且比靠近第三透镜单元G3中最靠近像侧的透镜表面更靠近物体侧的孔径光阑S. 变焦透镜满足规定的条件表达式。
    • 46. 发明授权
    • Zoom lens system and electronic image pickup apparatus using the same
    • 变焦镜头系统和使用其的电子摄像装置
    • US07636202B2
    • 2009-12-22
    • US12157839
    • 2008-06-13
    • Masahito WatanabeTakahiro Amanai
    • Masahito WatanabeTakahiro Amanai
    • G02B15/14
    • G02B15/177
    • A zoom lens system comprising, in order from an object side: a first lens unit comprising two lens components; and a second lens unit comprising one lens component, during zooming, a space between the first lens unit and the second lens unit changing, the first lens unit and the second lens unit having aspherical surfaces, at least one aspherical surface of the first lens unit satisfying the following condition: R1/hl 1.35, wherein R1 denotes a paraxial radius of curvature of the at least one aspherical surface, and hi denotes a length from a first intersection between a chief ray reaching a point of maximum image height on an image surface and the at least one aspherical surface to an optical axis in the wide-angle end at a time when the chief ray enters the zoom lens system with an angle of incidence equal to or larger than 36 degrees.
    • 一种变焦透镜系统,包括从物体侧起的顺序:包括两个透镜部件的第一透镜单元; 以及第二透镜单元,包括一个透镜部件,在变焦期间,第一透镜单元和第二透镜单元之间的空间改变具有非球面的第一透镜单元和第二透镜单元,第一透镜单元的至少一个非球面 满足以下条件:R1 / hl1.35,其中R1表示至少一个非球面的近轴曲率半径,并且hi表示从图像表面上到达最大图像高度点的主光线之间的第一交点的长度 以及当主光线以等于或大于36度的入射角进入变焦透镜系统时,在广角端的光轴上的至少一个非球面。