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：US20100053770A1

公开(公告)日：2010-03-04

申请号：US12547103

申请日：2009-08-25

申请人： Masae SATO ,  Yasunari FUKUTA ,  Takashi KAWASAKI

发明人： Masae SATO ,  Yasunari FUKUTA ,  Takashi KAWASAKI

IPC分类号： G02B13/18

CPC分类号： G02B9/10 ,  G02B13/0085

摘要： An image pickup lens includes a first lens block with a positive power and a second lens block with a positive or negative power. The first lens block includes a first lens substrate, and lens portions 1a and 1b arranged on opposing surfaces of the first lens substrate. The lens portions 1a and 1b are different from the first lens substrate in at least one of a refractive index and an Abbe number. The second lens block includes a second lens substrate, and lens portions 2a and 2b arranged on opposing surfaces of the second lens substrate. The lens portions 2a and 2b are different from the second lens substrate in at least one of a refractive index and an Abbe number. The image pickup lens satisfies a condition relating to focal lengths of the lens portions 1a and 2b.

摘要翻译： 图像拾取透镜包括具有正功率的第一透镜块和具有正或负功率的第二透镜块。 第一透镜块包括第一透镜基板和布置在第一透镜基板的相对表面上的透镜部分1a和1b。 透镜部分1a和1b在折射率和阿贝数中的至少一个方面与第一透镜基板不同。 第二透镜块包括第二透镜基板和布置在第二透镜基板的相对表面上的透镜部分2a和2b。 透镜部分2a和2b在折射率和阿贝数中的至少一个方面与第二透镜基板不同。 图像拾取透镜满足与透镜部分1a和2b的焦距有关的条件。

公开(公告)号：US08659839B2

公开(公告)日：2014-02-25

申请号：US13580943

申请日：2011-02-17

申请人： Kazuki Matsui ,  Yasunari Fukuta

发明人： Kazuki Matsui ,  Yasunari Fukuta

IPC分类号： G02B13/18 ,  H04N5/225

CPC分类号： G02B13/0035

摘要： Disclosed is an imaging lens by which astigmatism and field curvature are satisfactorily corrected by arranging on a first surface a concave surface having an appropriate radius of curvature. Condition (1) defines the radius of curvature of the concave surface arranged on the object-side surface of a bonded compound lens. By fulfilling condition (1), a lens can be obtained in which astigmatism and field curvature are satisfactorily corrected. Condition (1): −1.5

摘要翻译： 公开了一种成像透镜，通过在第一表面上布置具有适当的曲率半径的凹面来使像散和场弯曲得到令人满意的校正。 条件（1）限定了布置在粘合复合透镜的物体侧表面上的凹面的曲率半径。 通过满足条件（1），可以获得满意地校正像散和场曲率的透镜。 条件（1）：-1.5

公开(公告)号：US20130163101A1

公开(公告)日：2013-06-27

申请号：US13821532

申请日：2011-09-05

申请人： Yasunari Fukuta ,  Kazuki Matsui ,  Ryouta Ishikawa ,  Takashi Kawasaki

发明人： Yasunari Fukuta ,  Kazuki Matsui ,  Ryouta Ishikawa ,  Takashi Kawasaki

IPC分类号： G02B9/08

CPC分类号： G02B13/0045 ,  H04N5/2252 ,  H04N5/2254

摘要： An image capturing lens is disclosed, which is compact and capable of capturing an image at a wide angle though realizing low cost performance by enabling mass productions of wafer-scale lenses, and an image capturing device is disclosed, which uses this image capturing lens. For the purpose of attaining short focusing, a wide angle of view can be ensured by optimally disposing the power of a first lens block and the power of a second lens block so that a value of a conditional formula (1) becomes higher than a lower limit. Hereat, a wider angle can be attained by strengthening the positive power of the second lens block against the first lens block without increasing the overall length. While on the other hand, the value of the conditional formula (1) becomes lower than an upper limit, whereby the power of the second lens block is prevented from being excessively strengthened, the lens units of the second lens block can be configured with a small sag quantity, and moldability can be kept preferable, 0.9

摘要翻译： 公开了一种图像拍摄透镜，其是紧凑的并且能够通过实现晶片级透镜的批量生产而实现低成本性能而广角拍摄图像，并且公开了使用该图像拍摄透镜的图像捕获装置。 为了获得短焦距，可以通过最佳地布置第一透镜块的功率和第二透镜块的功率来确保广角视角，使得条件式（1）的值变得高于下一个 限制。 因此，通过在不增加总长度的情况下将第二透镜块的正向力抵靠第一透镜块加强，可以获得更宽的角度。 而另一方面，条件式（1）的值变得低于上限，从而防止第二透镜块的功率过度增强，第二透镜块的透镜单元可以被配置为 0.9

公开(公告)号：US08472125B2

公开(公告)日：2013-06-25

申请号：US12741674

申请日：2008-11-04

申请人： Yasunari Fukuta

发明人： Yasunari Fukuta

IPC分类号： G02B15/14

CPC分类号： G02B15/177 ,  G02B7/008

摘要： A variable power optical system (1) comprises a first lens group (11) having a negative optical power, a second lens group (12) having a positive optical power, and a third lens group (13). The first to third lens groups are arranged in order from the object side to the image side. The first lens group (11) is composed of one negative lens (111) and is fixed in variable power. The third lens group (13) includes at least one aspherical surface. When the third lens group is divided into a front group and a rear group with the largest air space in the third group, the front group has a negative optical power, and the rear group has a positive optical power.

摘要翻译： 可变功率光学系统（1）包括具有负光焦度的第一透镜组（11），具有正光焦度的第二透镜组（12）和第三透镜组（13）。 第一到第三透镜组从物体侧到像侧依次布置。 第一透镜组（11）由一个负透镜（111）组成，并以可变功率固定。 第三透镜组（13）包括至少一个非球面。 当第三组中的第三组被分成具有最大空气空间的前组和后组时，前组具有负光焦度，后组具有正光焦度。

公开(公告)号：US20120320261A1

公开(公告)日：2012-12-20

申请号：US13580943

申请日：2011-02-17

申请人： Kazuki Matsui ,  Yasunari Fukuta

发明人： Kazuki Matsui ,  Yasunari Fukuta

IPC分类号： G02B17/00 ,  H04N5/225

CPC分类号： G02B13/0035

摘要： Disclosed is an imaging lens by which astigmatism and field curvature are satisfactorily corrected by arranging on a first surface a concave surface having an appropriate radius of curvature. Condition (1) defines the radius of curvature of the concave surface arranged on the object-side surface of a bonded compound lens. By fulfilling condition (1), a lens can be obtained in which astigmatism and field curvature are satisfactorily corrected. Condition (1): −1.5

摘要翻译： 公开了一种成像透镜，通过在第一表面上布置具有适当的曲率半径的凹面来使像散和场弯曲得到令人满意的校正。 条件（1）限定了布置在粘合复合透镜的物体侧表面上的凹面的曲率半径。 通过满足条件（1），可以获得满意地校正像散和场曲率的透镜。 条件（1）：-1.5

公开(公告)号：US20120293874A1

公开(公告)日：2012-11-22

申请号：US13574988

申请日：2010-12-22

申请人： Kazuki Matsui ,  Eigo Sano ,  Yasunari Fukuta

发明人： Kazuki Matsui ,  Eigo Sano ,  Yasunari Fukuta

IPC分类号： G02B3/02

CPC分类号： G02B13/0035

摘要： An image-capturing lens includes, in order from an object side: a meniscus-shaped first lens which has positive power near an optical axis; a second lens which has positive power near the optical axis and has negative power in the periphery of the second lens; and a meniscus-shaped third lens. The image-capturing lens satisfies the following conditional formulas: TL/f

摘要翻译： 图像拍摄透镜从物体侧依次包括：在光轴附近具有正光焦度的弯液面状的第一透镜; 第二透镜，其在光轴附近具有正电力，并且在第二透镜的周边具有负电力; 和弯月面状的第三透镜。 图像拍摄透镜满足以下条件式：TL / f <1.10,2.00 <（r2 + r1）/（r2-r1）<4.00和0.07