公开(公告)号：US20140139698A1

公开(公告)日：2014-05-22

申请号：US14127848

申请日：2012-05-29

申请人： Yasunari Fukuta ,  Keiji Matsusaka

发明人： Yasunari Fukuta ,  Keiji Matsusaka

IPC分类号： G02B13/00 ,  H04N5/232

CPC分类号： G02B13/0045 ,  H04N5/23245

摘要： An imaging optical system, an imaging device, and a digital apparatus of the invention are provided with an optical system constituted of five lens elements having positive, negative, positive, positive, and negative refractive powers, or positive, negative, negative, positive, and negative refractive powers; and satisfy the conditional expressions: 1

摘要翻译： 本发明的成像光学系统，成像器件和数字设备具有由具有正，负，正，正和负折射光焦度的五个透镜元件构成的光学系统，或正，负，负，正， 和负屈光力; 并且满足条件表达式：1

公开(公告)号：US08368786B2

公开(公告)日：2013-02-05

申请号：US12933156

申请日：2009-03-16

申请人： Yasunari Fukuta

发明人： Yasunari Fukuta

IPC分类号： H04N5/335

CPC分类号： H04N5/2254 ,  G02B13/0025 ,  G02B13/0035 ,  H04N5/2253 ,  H04N5/2257 ,  Y10T156/1052

摘要： To provide an inexpensive image pickup lens ensuring mass productivity and preventing deterioration of images due to fluctuation of a paraxial image-point position caused by water absorption, image pickup device, digital apparatus, and a manufacturing method of the image pickup lens, the image pickup lens includes: at least one lens block including a lens substrate, and a lens portion or lens portions formed on at least one of an object-side surface or an image-side surface of the lens substrate. The lens portion is formed of an energy-curable resin material which is different from a material of the lens substrate. At least one lens portion has a dimension change rate caused by water absorption which is larger than a dimension change rate caused by water absorption of the lens substrate, and satisfies the predetermined expression about a change in refractive index the energy-curable resin material caused by water absorption.

摘要翻译： 为了提供廉价的图像拾取透镜，确保了大量生产率并且防止由吸水引起的傍轴图像点位置的波动，图像拾取装置，数字装置和图像拾取透镜的制造方法的图像劣化，图像拾取 透镜包括：包括透镜基板的至少一个透镜块和形成在透镜基板的物体侧表面或图像侧表面中的至少一个上的透镜部分或透镜部分。 透镜部分由与透镜基板的材料不同的能量固化树脂材料形成。 至少一个透镜部具有由吸水率引起的尺寸变化率大于由透镜基板的吸水率引起的尺寸变化率，并且满足关于由能量固化树脂材料引起的能量固化树脂材料的折射率变化的预定表达式 吸水。

公开(公告)号：US08274745B2

公开(公告)日：2012-09-25

申请号：US13088938

申请日：2011-04-18

申请人： Yasunari Fukuta ,  Masae Sato ,  Takashi Kawasaki ,  Kazuki Matsui

发明人： Yasunari Fukuta ,  Masae Sato ,  Takashi Kawasaki ,  Kazuki Matsui

IPC分类号： G02B3/02 ,  G02B9/04

CPC分类号： H04N5/2251 ,  G02B7/022 ,  G02B13/003 ,  G02B27/0025 ,  H04N5/2257 ,  Y10T156/1052

摘要： An image pickup lens, comprises sequentially from an object side: an aperture stop, a first lens being a positive meniscus lens which has a convex surface at the object side and a concave surface at an image side opposite to the object side, and a second lens having a concave surface at the object side and an image side surface whose radius of curvature on an paraxial region is infinite or a negative value, wherein the first lens is the second lens and the image side surface of the second lens includes an aspheric surface to make a positive power strong toward a lens peripheral region, and wherein the image pickup lens is made to satisfy the following conditional formulas. 1.55

摘要翻译： 一种图像拾取透镜，从物体侧依次包括：孔径光阑，作为物体侧具有凸面的正弯月形透镜的第一透镜和与物体侧相反的像侧的凹面，第二透镜 在物体侧具有凹面的透镜和近轴区域的曲率半径为无穷大的像侧面，其中，第一透镜为第二透镜，第二透镜的像侧表面具有非球面 使透镜周边区域成为强大的力量，并且使得图像拾取透镜满足以下条件式。 1.55 2 <90.0（3）

公开(公告)号：US07859764B2

公开(公告)日：2010-12-28

申请号：US12519566

申请日：2007-12-06

申请人： Yasunari Fukuta ,  Soh Ohzawa ,  Keiji Matsusaka

发明人： Yasunari Fukuta ,  Soh Ohzawa ,  Keiji Matsusaka

IPC分类号： G02B15/14

CPC分类号： G02B15/177 ,  G02B13/004 ,  G02B13/006 ,  G02B13/009

摘要： A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power, moving when the power of the variable-power optical system varies; and a third lens group with a positive or negative optical power. The first lens group includes two or more lenses including one positive lens and one negative lens which include at least two or more lenses made of a plastic material. The variable-power optical system satisfies the predetermined conditional expressions relating to is a focal length of the first lens, a focal length of the second lens, a composite focal length of the total optical system, and an image-forming magnification of the second lens group at a telephoto end.

摘要翻译： 可变功率光学系统从其物体侧依次包括：具有负光焦度的第一透镜组; 具有正光焦度的第二透镜组，当可变功率光学系统的功率变化时移动; 以及具有正或负光焦度的第三透镜组。 第一透镜组包括两个或更多个透镜，包括一个正透镜和一个负透镜，其包括由塑料材料制成的至少两个或更多透镜。 可变功率光学系统满足与第一透镜的焦距，第二透镜的焦距，总光学系统的复合焦距以及第二透镜的成像倍率相关的预定条件表达式 在长焦端组。

公开(公告)号：US09036275B2

公开(公告)日：2015-05-19

申请号：US14127848

申请日：2012-05-29

申请人： Yasunari Fukuta ,  Keiji Matsusaka

发明人： Yasunari Fukuta ,  Keiji Matsusaka

IPC分类号： G02B9/60 ,  G02B3/02 ,  G02B13/00 ,  H04N5/232

CPC分类号： G02B13/0045 ,  H04N5/23245

摘要： An imaging optical system, an imaging device, and a digital apparatus of the invention are provided with an optical system constituted of five lens elements having positive, negative, positive, positive, and negative refractive powers, or positive, negative, negative, positive, and negative refractive powers; and satisfy the conditional expressions: 1

摘要翻译： 本发明的成像光学系统，成像器件和数字设备具有由具有正，负，正，正和负折射光焦度的五个透镜元件构成的光学系统，或正，负，负，正， 和负屈光力; 并且满足条件表达式：1

公开(公告)号：US20120206639A1

公开(公告)日：2012-08-16

申请号：US13501678

申请日：2010-10-06

申请人： Kazuki Matsui ,  Yasunari Fukuta

发明人： Kazuki Matsui ,  Yasunari Fukuta

IPC分类号： H04N5/225 ,  G02B13/18 ,  G02B9/12

CPC分类号： G02B13/0035

摘要： Provided is an image pickup lens composed of three lens elements and an image pickup apparatus using the same, where the image pickup lens has satisfactorily corrected aberrations despite being smaller in size than conventional image pickup lenses. As image pickup lens includes, in order from the object side, an aperture stop, a first lens, a second lens, and a third lens. The first lens is a positive lens and is a meniscus lens having a convex surface facing the object side and a concave surface facing the object side, and the third lens is a negative lens. The image pickup lens satisfies conditional expressions relating to an air gap between the second and third lenses, a focal length of the second lens, and a curvature radius of the object-side surface of the second lens.

摘要翻译： 提供了一种由三个透镜元件组成的图像拾取透镜和使用该图像拾取装置的图像拾取装置，其中图像拾取透镜具有令人满意的校正像差，尽管尺寸小于常规图像拾取透镜。 作为图像拾取透镜，从物体侧依次包括孔径光阑，第一透镜，第二透镜和第三透镜。 第一透镜是正透镜，并且是具有面向物体侧的凸表面和面向物体侧的凹面的弯月形透镜，第三透镜​​是负透镜。 图像拾取透镜满足与第二透镜和第三透镜之间的气隙，第二透镜的焦距和第二透镜的物体侧表面的曲率半径有关的条件表达式。

公开(公告)号：US20110124373A1

公开(公告)日：2011-05-26

申请号：US13055000

申请日：2009-07-22

申请人： Yasunari Fukuta

发明人： Yasunari Fukuta

IPC分类号： G02B13/18 ,  H04W88/02 ,  H04N5/225 ,  G02B3/00 ,  G02B11/20

CPC分类号： G02B13/006 ,  G02B13/004 ,  G02B13/0085

摘要： An image pickup lens LN includes four blocks of lens blocks Ci (i=0 to 4). Lens substrate Li2 is different in material from lens portions Li1 and Li3. First lens block C1 has positive power, second lens block C2 has negative power, and fourth lens block C4 has a concave shape facing an image side in a paraxial region. At least one of lens portions with a concave shape in the paraxial region satisfies the conditional expression νn

摘要翻译： 图像拾取透镜LN包括透镜块Ci（i = 0至4）的四个块。 透镜基板Li2的材料与透镜部分Li1和Li3不同。 第一透镜块C1具有正光焦度，第二透镜块C2具有负光焦度，第四透镜块C4在近轴区域具有面向像侧的凹形。 在近轴区域中具有凹形形状的透镜部分中的至少一个满足条件表达式＆lt; ngr; n <40（其中，n是近轴区域中具有凹形形状的透镜部分的阿贝数）和第一透镜块 C1满足条件表达式0.5

公开(公告)号：US20110043623A1

公开(公告)日：2011-02-24

申请号：US12934062

申请日：2009-03-16

申请人： Yasunari Fukuta ,  Akira Fukushima ,  Miyuki Teramoto ,  Keiji Matsusaka

发明人： Yasunari Fukuta ,  Akira Fukushima ,  Miyuki Teramoto ,  Keiji Matsusaka

IPC分类号： H04N7/18 ,  H04N5/225

CPC分类号： H04N5/217 ,  B60R2300/10 ,  B60R2300/804 ,  B60R2300/8053 ,  B60R2300/8066 ,  G02B27/0018 ,  G02B27/281 ,  G03B15/00 ,  H04N5/2254

摘要： A mode control section controls an image generation section to operate in a normal mode or a polarized light component reduction mode on the basis of a mode signal from a mode signal generation section to cause the image generation section to form a normal image or a polarized light component reduced image. When the possibility of occurrence of stray light is high, the imaging device automatically switches to the polarized light component reduction mode and when the possibility of occurrence of the stray light is low, the imaging device automatically switches to the normal mode. The polarized light component reduced image is obtained by reducing or eliminating stray light having a polarized light component, and the normal image is formed without reducing the stray light. Thus, the imaging device is capable of automatically switching between the two modes.

摘要翻译： 模式控制部分根据来自模式信号产生部分的模式信号控制图像生成部分以正常模式或偏振光分量降低模式操作，以使图像生成部分形成正常图像或偏振光 分量缩小图像。 当发生杂散光的可能性高时，成像装置自动切换到偏振光分量降低模式，并且当杂散光的发生的可能性低时，成像装置自动切换到正常模式。 通过减少或消除具有偏振光分量的杂散光获得偏振光分量缩小图像，并且形成正常图像而不减少杂散光。 因此，成像装置能够在两种模式之间自动切换。

公开(公告)号：US20100188555A1

公开(公告)日：2010-07-29

申请号：US12667252

申请日：2008-06-25

申请人： Yusuke Hirao ,  Keiji Matsusaka ,  Yasunari Fukuta

发明人： Yusuke Hirao ,  Keiji Matsusaka ,  Yasunari Fukuta

IPC分类号： G02B13/18 ,  H04N5/225 ,  G02B3/00 ,  G02B11/08

CPC分类号： G02B13/006 ,  G02B13/0035 ,  G02B13/004 ,  G02B13/0085

摘要： Provided are a wafer scale lens, which is so short in an optical total length with respect to an image height that it can correct an aberration satisfactory, and an optical system including the wafer scale lens and having a thin lens element on the side closest to the image. The optical system includes a first lens having a positive refractive power relative to an object, and a second lens arranged on the side of the image of the first lens and having a recessed shape on the side of the object. At least one lens is arranged on the side of the second lens. When that one of the lenses arranged on the side of the image of the second lens, which is arranged on the side closest to the image, is an i-th lens (i>3), this i-th lens includes an i-th lens flat plate and is formed on the object side of the i-th lens flat plate but has a refractive index different from that of the i-th lens flat plate, and a lens element having a convex shape on the object side where the main light ray of the maximum image height passes. Moreover, the ratio between the optical axial distance (or the lens distance) between a (i−1)-th lens and the i-th lens and the optical axis distance (or the optical total length) from the object side face of the first lens to the image face is 0.01 to 0.15.

摘要翻译： 本发明提供一种晶片级透镜，其相对于能够校正像差的图像高度的光学全长相当短，以及包括晶片标尺透镜的光学系统，并且在最靠近 图片。 光学系统包括相对于物体具有正折射力的第一透镜和布置在第一透镜的图像侧并且在物体侧具有凹陷形状的第二透镜。 至少一个透镜布置在第二透镜的侧面上。 当布置在布置在最靠近图像的一侧的第二透镜的图像侧的那一个透镜是第i个透镜（i> 3）时，该第i个透镜包括i- 并且形成在第i个透镜平板的物体侧上，但是具有与第i个透镜平板的折射率不同的折射率，以及在物体侧具有凸形的透镜元件， 最大图像高度的主光线通过。 此外，第（i-1）个透镜和第i个透镜之间的光学轴向距离（或透镜距离）与距离物体侧面的光轴距离（或光学总长度）之间的比率 第一个镜头到图像面是0.01到0.15。

公开(公告)号：US20070242370A1

公开(公告)日：2007-10-18

申请号：US11784970

申请日：2007-04-10

申请人： Yasunari Fukuta ,  Susumu Yamaguchi

发明人： Yasunari Fukuta ,  Susumu Yamaguchi

IPC分类号： G02B9/34

CPC分类号： G02B13/004 ,  G02B9/34

摘要： The present invention provides an image pickup lens for forming a light flux from a subject into an image on an image pickup element, and the image pickup lens includes, in order from an object side thereof: an aperture stop; a first lens having a positive refractive power; a second lens having a negative refractive power and comprising a concave surface facing an image side of the image pickup lens; a third lens having a positive refractive power; and a fourth lens having a negative refractive power and comprising a concave surface facing the image side. The image pickup lens satisfies the predetermined condition according to a curvature radius of the surface facing the image side on the second lens, and a focal length of the image pickup lens.

摘要翻译： 本发明提供了一种用于将来自被摄体的光束形成为图像拾取元件上的图像的图像拾取透镜，并且图像拾取透镜从其物体侧起依次包括：孔径光阑; 具有正屈光力的第一透镜; 具有负屈光力的第二透镜，并且包括面向图像拾取透镜的像侧的凹面; 具有正屈光力的第三透镜; 以及具有负屈光力并且包括面向图像侧的凹面的第四透镜。 图像拾取透镜根据在第二透镜上面对图像侧的表面的曲率半径和图像拾取透镜的焦距来满足预定条件。