公开(公告)号：US08717683B2

公开(公告)日：2014-05-06

申请号：US13135090

申请日：2011-06-23

申请人： Tetsuya Toyoda ,  Takeshi Hosoya ,  Masahito Watanabe ,  Tomoyuki Satori ,  Eiji Shirota

发明人： Tetsuya Toyoda ,  Takeshi Hosoya ,  Masahito Watanabe ,  Tomoyuki Satori ,  Eiji Shirota

IPC分类号： G02B15/14

CPC分类号： G02B15/177 ,  G02B13/0065 ,  G02B13/009 ,  H04N5/2254 ,  H04N5/3572

摘要： An image pickup apparatus includes: a zoom lens; an image pickup element having an image pickup surface which receives an image which has been formed by the zoom lens, and converts to an electric signal; a shading correction parameter storage section which stores a shading correction parameter which differs at a front-surface side and a rear-surface side with respect to a center of an image, which is for correcting asymmetric shading at the front-surface side and the rear-surface side of the zoom lens; and a shading correction section which carries out correction operation of an image which has been picked up by the image pickup element, based on the shading correction parameter of the shading correction parameter storage section. When an object having a uniform brightness is captured, at any state from the wide angle end to the telephoto end, the zoom lens satisfies conditional expression (A).

摘要翻译： 一种图像拾取装置，包括：变焦透镜; 图像拾取元件，其具有接收由变焦透镜形成的图像并转换为电信号的图像拾取表面; 阴影校正参数存储部，其存储相对于图像的中心在前表面侧和后表面侧不同的阴影校正参数，其用于校正前表面侧和后侧的非对称阴影 变焦镜头的表面侧; 以及阴影校正部，其基于遮蔽校正参数存储部的阴影校正参数，对由摄像元件拍摄的图像进行校正操作。 当捕获具有均匀亮度的物体时，在从广角端到望远端的任何状态下，变焦透镜满足条件表达式（A）。

公开(公告)号：US20100295974A1

公开(公告)日：2010-11-25

申请号：US12804744

申请日：2010-07-27

申请人： Eiji Shirota

发明人： Eiji Shirota

IPC分类号： H04N5/217 ,  G02B15/177

CPC分类号： G02B15/177

摘要： An electronic image pickup apparatus comprising a zoom lens system and an image pickup device disposed on an image side of the zoom lens system and which converts an image formed by the zoom lens system into an electric signal, the zoom lens system having, in order from an object side, a negative first lens unit, a positive second lens unit, a negative third lens unit, and a positive fourth lens unit, the first lens unit having, in order from the object side, a negative lens and a reflective optical element which reflects an optical path, and during zooming from a wide-angle end to a telephoto end, each space between the lens units which are adjacent with each other being changed, the first lens unit being arranged in a fixed position to the image pickup device, and at least the second lens unit and the third lens unit being moved.

摘要翻译： 一种电子摄像装置，包括变焦透镜系统和设置在变焦透镜系统的像侧的图像拾取装置，并且将由变焦透镜系统形成的图像转换为电信号，该变焦透镜系统具有从 物体侧，负第一透镜单元，正第二透镜单元，负第三透镜单元和正第四透镜单元，第一透镜单元从物体侧依次具有负透镜和反射光学元件 其反射光路，并且在从广角端到望远端的变焦期间，彼此相邻的透镜单元之间的每个空间都改变，第一透镜单元布置在图像拾取装置的固定位置 并且至少第二透镜单元和第三透镜单元被移动。

公开(公告)号：US20060197852A1

公开(公告)日：2006-09-07

申请号：US11350355

申请日：2006-02-09

申请人： Masashi Hankawa ,  Eiji Shirota ,  Masaru Morooka ,  Toru Miyajima ,  Kouki Hozumi

发明人： Masashi Hankawa ,  Eiji Shirota ,  Masaru Morooka ,  Toru Miyajima ,  Kouki Hozumi

IPC分类号： H04N5/262

CPC分类号： G02B15/173

摘要： An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with positive power, a second lens unit with negative power, and an aperture stop, in which the first lens unit is composed of a single positive power unit and the second lens unit has a single negative lens element located at the most object-side position, both surfaces of which are concave, and a positive lens component located at the most image-side position; an electronic image sensor located 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 form thereof.

公开(公告)号：US20100128361A1

公开(公告)日：2010-05-27

申请号：US12590617

申请日：2009-11-10

申请人： Eiji Shirota

发明人： Eiji Shirota

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： A zoom lens includes, in order from the object side thereof, a first lens unit having a positive refracting power, a second lens unit having a negative refracting power, a third lens unit having a positive refracting power, a fourth lens unit having a positive refracting power, and a fifth lens unit having a negative refracting power. During zooming from the wide angle end to the telephoto end, the first lens unit and the third lens unit are kept stationary with respect to the image plane, and at least the second lens unit and the fourth lens unit move. The first lens unit includes, in order from the object side, a first sub unit having a negative refracting power, a reflecting optical element that bends an optical path by reflection, and a second sub unit having a positive refracting power. The second sub unit includes a cemented lens.

摘要翻译： 变焦透镜从其物体侧依次包括具有正折射率的第一透镜单元，具有负折射力的第二透镜单元，具有正折射率的第三透镜单元，具有正折射率的第四透镜单元 折射力，以及具有负折射率的第五透镜单元。 在从广角端到长焦端的变焦期间，第一透镜单元和第三透镜单元相对于像面保持静止，并且至少第二透镜单元和第四透镜单元移动。 第一透镜单元从物体依次包括具有负折射力的第一子单元，通过反射弯曲光路的反射光学元件和具有正折射率的第二子单元。 第二子单元包括胶合透镜。

公开(公告)号：US20090040623A1

公开(公告)日：2009-02-12

申请号：US12151450

申请日：2008-05-06

申请人： Masaru Morooka ,  Hideyuki Nagaoka ,  Eiji Shirota ,  Masahiro Katakura

发明人： Masaru Morooka ,  Hideyuki Nagaoka ,  Eiji Shirota ,  Masahiro Katakura

IPC分类号： G02B15/16

CPC分类号： G02B15/173 ,  G02B5/04 ,  G02B27/0025

摘要： An image pickup apparatus having a wide angle zoom lens system includes a zoom lens system, and an image pickup element which is disposed at an image side of the zoom lens system. The zoom lens system includes in order from an object side thereof, a first lens unit G1 having a positive refracting power, a second lens unit G2 having a negative refracting power, a third lens unit G3 having a positive refracting power, a fourth lens unit G4 having a positive refracting power, and an aperture stop S which is disposed between the second lens unit G2 and the third lens unit G3. A zooming is carried out from a wide angle end to a telephoto end by fixing a position of the first lens unit, and changing a distance between the lens units by moving at least the second lens unit G2 and the third lens unit G3, and the following conditional expressions are satisfied. 33°

公开(公告)号：US20090040363A1

公开(公告)日：2009-02-12

申请号：US12284955

申请日：2008-09-25

申请人： Masashi Hankawa ,  Eiji Shirota ,  Masaru Morooka ,  Toru Miyajima ,  Kouki Hozumi

发明人： Masashi Hankawa ,  Eiji Shirota ,  Masaru Morooka ,  Toru Miyajima ,  Kouki Hozumi

IPC分类号： H04N5/232 ,  G02B15/16

CPC分类号： G02B15/173

摘要： An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with positive power, a second lens unit with negative power, and an aperture stop, in which the first lens unit is composed of a single positive power unit and the second lens unit has a single negative lens element located at the most object-side position, both surfaces of which are concave, and a positive lens component located at the most image-side position; an electronic image sensor located 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 form thereof.

摘要翻译： 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正光焦度的第一透镜单元，具有负光焦度的第二透镜单元和孔径光阑，其中，第一透镜单元由单个 正电源单元和第二透镜单元具有位于最外侧位置的最靠近物体侧位置的单个负透镜元件，其两个表面均为凹形，并且位于最图像侧位置的正透镜元件; 位于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式的图像处理部。

公开(公告)号：US20080084615A1

公开(公告)日：2008-04-10

申请号：US11900309

申请日：2007-09-10

申请人： Masashi Hankawa ,  Eiji Shirota

发明人： Masashi Hankawa ,  Eiji Shirota

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： There is disclosed an electronic image pickup apparatus including an aperture stop disposed on an optical path reflected by a reflective surface of a first lens unit and having a non-circular aperture in a state in which an area of an aperture of the aperture stop is maximized, and a lens arranged closest to an image side on an optical path extending from the reflective surface to an image surface and having a non-circular shape, each of the shape of the non-circular aperture of the aperture stop and the outer shape of the lens is formed such that a length of the aperture which in a direction along an incident optical axis which enters the first lens unit is smaller than that of which in a direction vertical to the incident optical axis which enters the first lens unit and a reflected optical axis reflected by the reflective surface.

摘要翻译： 公开了一种电子摄像装置，包括设置在由第一透镜单元的反射表面反射的光路上的孔径光阑，并且在孔径光阑的孔径的面积最大化的状态下具有非圆形孔径 以及在从反射面延伸到图像面的光路上最靠近图像侧布置的透镜，并且具有非圆形形状，孔径止动件的非圆形孔的形状和外部形状 透镜被形成为使得沿着入射到第一透镜单元的入射光轴的方向上的孔的长度小于在与入射到第一透镜单元的入射光轴垂直的方向上的孔的长度，并且反射 光轴由反射面反射。

公开(公告)号：US08159565B2

公开(公告)日：2012-04-17

申请号：US12284955

申请日：2008-09-25

申请人： Masashi Hankawa ,  Eiji Shirota ,  Masaru Morooka

发明人： Masashi Hankawa ,  Eiji Shirota ,  Masaru Morooka

IPC分类号： H04N5/262 ,  G02B15/14

CPC分类号： G02B15/173

摘要： An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with positive power, a second lens unit with negative power, and an aperture stop, in which the first lens unit is composed of a single positive power unit and the second lens unit has a single negative lens element located at the most object-side position, both surfaces of which are concave, and a positive lens component located at the most image-side position; an electronic image sensor located 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 form thereof.

摘要翻译： 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正光焦度的第一透镜单元，具有负光焦度的第二透镜单元和孔径光阑，其中，第一透镜单元由单个 正电源单元和第二透镜单元具有位于最外侧位置的最靠近物体侧位置的单个负透镜元件，其两个表面均为凹形，并且位于最图像侧位置的正透镜元件; 位于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式的图像处理部分。

公开(公告)号：US20100265595A1

公开(公告)日：2010-10-21

申请号：US12798950

申请日：2010-04-13

申请人： Akiyoshi Tochigi ,  Yasutaka Kashiki ,  Eiji Shirota

发明人： Akiyoshi Tochigi ,  Yasutaka Kashiki ,  Eiji Shirota

IPC分类号： G02B15/177

CPC分类号： G02B15/177 ,  G02B13/18

摘要： A two-unit zoom lens system which forms an image on an image pickup surface, includes in order from an object side to an image side, a first lens unit G1 having a negative refracting power and a second lens unit G2 having a positive refracting power. At the time of zooming from a wide angle end to a telephoto end, a distance between the first lens unit and the second lens unit is narrowed. The first lens unit includes in order from the object side to the image side, a first lens having a negative refracting power, a second lens having a negative refracting power, and a third lens having a positive refracting power, and the two-unit zoom lens system satisfies predetermined conditional expressions.

摘要翻译： 在图像拾取表面上形成图像的双单位变焦透镜系统包括从物体侧到像侧的顺序，具有负折射力的第一透镜单元G1和具有正折射率的第二透镜单元G2 。 在从广角端到远摄端的变焦时，第一透镜单元与第二透镜单元之间的距离变窄。 第一透镜单元从物体侧到像侧依次包括具有负折射率的第一透镜，具有负折射光焦度的第二透镜和具有正折射率的第三透镜，并且两单位变焦 透镜系统满足预定条件表达式。

公开(公告)号：US07599125B2

公开(公告)日：2009-10-06

申请号：US12151450

申请日：2008-05-06

申请人： Masaru Morooka ,  Hideyuki Nagaoka ,  Eiji Shirota ,  Masahiro Katakura

发明人： Masaru Morooka ,  Hideyuki Nagaoka ,  Eiji Shirota ,  Masahiro Katakura

IPC分类号： G02B15/14

CPC分类号： G02B15/173 ,  G02B5/04 ,  G02B27/0025

摘要： An image pickup apparatus having a wide angle zoom lens system includes a zoom lens system, and an image pickup element which is disposed at an image side of the zoom lens system. The zoom lens system includes in order from an object side thereof, a first lens unit G1 having a positive refracting power, a second lens unit G2 having a negative refracting power, a third lens unit G3 having a positive refracting power, a fourth lens unit G4 having a positive refracting power, and an aperture stop S which is disposed between the second lens unit G2 and the third lens unit G3. A zooming is carried out from a wide angle end to a telephoto end by fixing a position of the first lens unit, and changing a distance between the lens units by moving at least the second lens unit G2 and the third lens unit G3, and the following conditional expressions are satisfied. 33°

摘要翻译： 具有广角变焦透镜系统的图像拾取装置包括变焦透镜系统和设置在变焦透镜系统的像侧的摄像元件。 变焦透镜系统从物体侧依次包括具有正折射力的第一透镜单元G1，具有负折射光焦度的第二透镜单元G2，具有正折射力的第三透镜单元G3，第四透镜单元 G4具有正折射力，以及孔径光阑S，其设置在第二透镜单元G2和第三透镜单元G3之间。 通过固定第一透镜单元的位置，并且通过至少移动第二透镜单元G2和第三透镜单元G3来改变透镜单元之间的距离，从广角端到望远端进行变焦，并且 满足以下条件表达式。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 33° <？in-line-formula description =”In-line Formulas“end =”lead“？> 3