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    • 51. 发明申请
    • Electronic imaging apparatus
    • 电子成像装置
    • US20060221212A1
    • 2006-10-05
    • US11357338
    • 2006-02-21
    • Masashi HankawaEiji ShirotaKazuteru KawamuraMasahito Watanabe
    • Masashi HankawaEiji ShirotaKazuteru KawamuraMasahito Watanabe
    • H04N5/262
    • G02B15/177G02B5/04G02B23/145
    • An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with negative power and a second lens unit with positive power, in which lens components having refracting power in the first lens unit are only a single biconcave negative lens element located at the most object-side position and a positive lens component located at the most image-side position; an electronic image sensor placed on the image side of the zoom optical system; and an image processing section electrically processing image data obtained by the electronic image sensor to change the shape thereof. The zoom lens system satisfies the following conditions in focusing of a nearly infinite object point: 0.85
    • 一种电子成像装置,包括:变焦光学系统,其具有从物体侧起的具有负电源的第一透镜单元和具有正光焦度的第二透镜单元,其中在第一透镜单元中具有折射能力的透镜部件仅为单个 位于最物体侧位置的双凹面负透镜元件和位于最图像侧位置的正透镜部件; 放置在变焦光学系统的像侧的电子图像传感器; 以及电子处理由电子图像传感器获得的图像数据以改变其形状的图像处理部分。 变焦透镜系统在几乎无限的对象点的聚焦中满足以下条件:<?in-line-formula description =“In-line Formulas”end =“lead”?> 0.85 <| Y <07 &lt;&lt;&lt;&gt;&gt;&lt;&lt;&gt;&lt;&lt;&lt;&gt; ?in-line-formula description =“In-line Formulas”end =“lead”?> 0.75 <| Y /(f 10w )| <0.93 <?in-line-formula description =“In-line Formulas”end =“tail”?>其中f 是整个变焦光学的焦距 系统处于广角位置,y <10>是从电子图像传感器的有效成像表面的中心到距离中心最远的点的距离,y < 是由0.7×10 表示的图像高度,ω-07w是由对应于图像点的对象点的方向所形成的角度,连接有效的 电子图像传感器的成像表面 广角位置和图像高度y <07>的位置与光轴。
    • 58. 发明申请
    • Zoom optical system, and imaging system incorporating the same
    • 变焦光学系统和包含其的成像系统
    • US20050063070A1
    • 2005-03-24
    • US10945396
    • 2004-09-21
    • Masahito WatanabeAzusa Noguchi
    • Masahito WatanabeAzusa Noguchi
    • G02B15/177G02B15/14
    • G02B15/177
    • The invention relates to a zoom optical system wherein various aberrations are corrected while the total thickness of a lens arrangement upon received at a collapsible lens mount is reduced thereby ensuring compactness, high image-formation capabilities, and high zoom ratios at the wide-angle end, and an imaging system that incorporates the same. The zoom optical system comprises a first lens group G1 of negative refracting power and a second lens group G2 of positive refracting power. The first lens group G1 comprises a negative single lens comprising at least one aspheric surface and a positive single lens with an air separation interposed between the negative single lens and the positive single lens. The second lens group G2 comprises a positive lens, a cemented lens consisting of a positive lens and a negative lens and a positive lens, and comprises at least one aspheric surface. Zooming is carried out by varying a spacing between the respective lens groups. The zoom optical system satisfies condition (1) that defines the proper range of the refracting power profile for the first lens group G1, condition (2) that defines an angle-of-view range at the wide-angle end, and condition (3) that defines an angle-of-view range at the telephoto end.
    • 本发明涉及一种变焦光学系统,其中各种像差被校正,同时在可折叠透镜座上接收的透镜装置的总厚度减小,从而确保广角端处的紧凑性,高成像能力和高变焦比 ,以及包含该成像系统的成像系统。 变焦光学系统包括负折射力的第一透镜组G1和正折射率的第二透镜组G2。 第一透镜组G1包括包含至少一个非球面的负单透镜和在单个单透镜和正单透镜之间具有空气分离的正单透镜。 第二透镜组G2包括正透镜,由正透镜和负透镜和正透镜组成的胶合透镜,并且包括至少一个非球面。 通过改变各透镜组之间的间距来进行变焦。 变焦光学系统满足条件(1),其限定第一透镜组G1的折射功率分布的适当范围,限定广角端的视角范围的条件(2)和条件(3 ),其定义了望远端的视角范围。
    • 59. 发明授权
    • Zoom optical system
    • 变焦光学系统
    • US06809881B2
    • 2004-10-26
    • US10350013
    • 2003-01-24
    • Masahito WatanabeHirokazu KonishiYuji MiyauchiShinichi Mihara
    • Masahito WatanabeHirokazu KonishiYuji MiyauchiShinichi Mihara
    • G02B1514
    • G02B15/177
    • A zoom optical system suited for use in an electronic image pickup apparatus comprising a first negative lens unit, a second positive lens unit and a third positive lens unit, in which a magnification is changed from a wide position to a tele position by moving at least the first lens unit and the second lens unit so as to change an airspace between the first lens unit and the second lens unit and widen an airspace between the second lens unit and the third lens unit, the second lens unit comprises a biconvex lens element and a cemented meniscus lens component having a convex surface on the object side, and each lens unit has a small thickness.
    • 一种适用于电子摄像装置的变焦光学系统,包括第一负透镜单元,第二正透镜单元和第三正透镜单元,其中通过至少移动放大倍数从宽位置变为远摄位置 第一透镜单元和第二透镜单元,以便改变第一透镜单元和第二透镜单元之间的空间,并且加宽第二透镜单元和第三透镜单元之间的空间,第二透镜单元包括双凸透镜元件, 在物体侧具有凸面的胶结弯液面透镜部件,并且每个透镜单元具有小的厚度。