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1. 发明专利

JP2014063025A Zoom lens and imaging apparatus including the same 有权
标题翻译：变焦镜头和成像装置，包括它们
公开(公告)号：JP2014063025A
公开(公告)日：2014-04-10
申请号：JP2012207970
申请日：2012-09-21
申请人： Canon Inc , キヤノン株式会社
发明人： TASHIRO YOSHIHISA , HIASA NORITO
IPC分类号： G02B15/20 , G02B13/18 , G03B21/00 , G03B21/14
CPC分类号： G02B15/14 , G02B13/18 , G02B15/177 , H04N5/23296
摘要： PROBLEM TO BE SOLVED: To provide a zoom lens which can easily and satisfactorily correct a chromatic aberration of magnification, and has a high zoom ratio and a wide angle of view.SOLUTION: The zoom lens includes, in order from the object side to the image side: a first lens group having a negative refractive power; and a rear group including one or more lens groups, and when zooming, the distances between adjacent lens groups are changed. The zoom lens includes an aperture stop on the image side of the first lens group. At the wide angle end, the composite focal distance of the rear group is positive. One lens group LG on the object side of the aperture stop has an optical element GnNL formed of a solid material and having a negative refractive power and an optical element formed of a solid material and having a positive refractive power. The Abbe number νdnNL and the partial dispersion ratio θgFnNL of the material of the optical element GnNL, the partial dispersion ratio θgFpNL of the material of an optical element GpNL having a positive refractive power which is included in the lens group LG and whose material has a largest partial dispersion ratio, the focal distance fnNL of the optical element GnNL in the air, and the focal distance fG of the lens group LG are appropriately set, respectively.
摘要翻译：要解决的问题：提供一种可以容易且令人满意地校正倍率色像差的变焦透镜，并且具有高变焦比和宽视角。解决方案：变焦透镜从物体侧到图像侧：具有负屈光力的第一透镜组; 以及包括一个或多个透镜组的后组，并且当变焦时，相邻透镜组之间的距离改变。变焦透镜在第一透镜组的像侧上包括孔径光阑。在广角端，后组的复合焦距为正。在孔径光阑的物体侧的一个透镜组LG具有由固体材料形成且具有负折光力的光学元件GnNL和由固体材料形成并具有正折光力的光学元件。光学元件GnNL的材料的阿贝数和nnnL以及部分色散比率和gPnNL，包括在透镜组中的具有正折光力的光学元件GpNL的材料的部分色散比＆g; LG，并且其材料具有最大的部分色散比，分别适当地设定空气中的光学元件GnNL的焦距fnNL和透镜组LG的焦距f G。

2. 发明专利

JP2014016466A Zoom lens and imaging device having the same 有权
标题翻译：变焦镜头和成像装置
公开(公告)号：JP2014016466A
公开(公告)日：2014-01-30
申请号：JP2012153686
申请日：2012-07-09
申请人： Canon Inc , キヤノン株式会社
发明人： EBE HIROKI , TASHIRO YOSHIHISA
IPC分类号： G02B15/20 , G02B13/18
CPC分类号： G02B15/14 , G02B15/16 , G02B15/177 , H04N5/2254
摘要： PROBLEM TO BE SOLVED: To obtain a zoom lens which is small in size as a whole, gives a wide photographing angle and is suitable for an imaging device using an imaging element that facilitates high-speed focusing.SOLUTION: The zoom lens includes, from an object side to an image side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a negative refractive power, in which the third lens group is composed of a partial lens group L3A having a positive refractive power and a partial lens group L3B having a negative refractive power, segmented by the broadest air gap. Upon zooming from a wide angle end to a telephoto end, the first lens group and the second lens group are moved to narrow the gap between the first lens group and the second lens group. Upon focusing from an infinite object to a short distance object, the partial lens group L3B is moved toward the image side.
摘要翻译：要解决的问题：为了获得整体尺寸小的变焦透镜，给出宽的拍摄角度，并且适合于使用便于高速聚焦的成像元件的成像装置。解决方案：变焦镜头包括具有负折光力的第一透镜组，具有正折光力的第二透镜组和具有负折光力的第三透镜组，其中第三透镜组由部分具有正屈光力的透镜组L3A和具有负折射力的局部透镜组L3B，由最宽的气隙分割。当从广角端变焦到望远端时，移动第一透镜组和第二透镜组以缩小第一透镜组和第二透镜组之间的间隙。从无限远物体聚焦到短距离物体时，部分透镜组L3B朝向像侧移动。

3. 发明专利

JP2014145869A Zoom lens and imaging apparatus having the same 审中-公开
标题翻译：变焦镜头和成像装置
公开(公告)号：JP2014145869A
公开(公告)日：2014-08-14
申请号：JP2013013881
申请日：2013-01-29
申请人： Canon Inc , キヤノン株式会社
发明人： TASHIRO YOSHIHISA
IPC分类号： G02B15/14 , G02B13/18 , G02B15/16 , G02B15/20
摘要： PROBLEM TO BE SOLVED: To provide an optical system having refractive power variable elements, in which a plurality of refractive power variable elements are appropriately arranged to achieve improved performance of the optical system and a high variable power, variations in Petzval sum are compensated for, and excellent optical performance is obtained over the entire zoom range.SOLUTION: A zoom lens includes, in order from an object side, a first lens group, an intermediate lens group, and at least one subsequent lens group. The first lens group includes a first refractive power variable element, and the subsequent lens group includes a second refractive power variable element whose refractive power variation direction is opposite to that of the first refractive power variable element. The focal distance f1w of the first lens group at the wide angle end and the focal distance f1t of the first lens group at the telephoto end satisfy a predetermined conditional expression.
摘要翻译：要解决的问题：为了提供一种具有屈光力量可变元件的光学系统，其中适当地布置多个屈光力可变元件以实现光学系统的改进的性能和高可变功率，可以补偿Petzval和的变化，并且在整个变焦范围内获得优异的光学性能。解决方案：变焦透镜从物体侧依次包括第一透镜组，中间透镜组和至少一个后续透镜组。第一透镜组包括第一屈光度可变元件，并且后续透镜组包括其屈光力变化方向与第一屈光力可变元件的屈光力变化方向相反的第二屈光力量可变元件。第一透镜组在广角端的焦距f1w和第一透镜组在望远端的焦距f1t满足预定条件表达式。

4. 发明专利

JP2014048311A Zoom lens and image capturing device having the same 有权
标题翻译：具有相同功能的变焦镜头和图像拍摄设备
公开(公告)号：JP2014048311A
公开(公告)日：2014-03-17
申请号：JP2012188586
申请日：2012-08-29
申请人： Canon Inc , キヤノン株式会社
发明人： TASHIRO YOSHIHISA
IPC分类号： G02B15/20 , G02B13/18 , G03B5/00 , G03B17/17
CPC分类号： G02B15/14 , G02B15/173
摘要： PROBLEM TO BE SOLVED: To provide a zoom lens which offers a high zoom ratio and compactness of the whole system, facilitates capturing high-quality images, and allows a camera to be made thinner when used therein.SOLUTION: A zoom lens includes a first lens group having positive refractive power, a second lens group having negative refractive power, a reflector unit for bending an optical path, and a rear group having two or more lens groups. When zooming, the first lens group and the second lens group move while the reflector unit is stationary. A displacement X1 of the first lens group when zoomed from the wide angle end to the telephoto end, a distance DR along the optical axis from a reflection surface of the reflector unit to an imaging plane, a distance d2w along the optical axis from a most image side lens surface of the second lens group to the reflection surface of the reflector unit at the wide angle end, and a focal length f2 of the second lens group are each set appropriately.
摘要翻译：要解决的问题：为了提供提供整个系统的高变焦比和紧凑性的变焦镜头，有助于捕获高质量的图像，并且允许在使用时使相机变薄。变焦镜头包括第一具有正屈光力的透镜组，具有负屈光力的第二透镜组，用于弯曲光路的反射器单元和具有两个或更多个透镜组的后组。当变焦时，第一透镜组和第二透镜组在反射器单元静止时移动。当从广角端到望远端放大时，第一透镜组的位移X1，沿着光轴从反射器单元的反射表面到成像平面的距离DR，沿着光轴的距离d2w从最大第二透镜组的像侧透镜表面在广角端到反射器单元的反射表面，并且适当地设置第二透镜组的焦距f2。

5. 发明专利

JP2013105132A Zoom lens and imaging apparatus having the same 有权
标题翻译：变焦镜头和成像装置
公开(公告)号：JP2013105132A
公开(公告)日：2013-05-30
申请号：JP2011250499
申请日：2011-11-16
申请人： Canon Inc , キヤノン株式会社
发明人： HAGIWARA YASUAKI , TASHIRO YOSHIHISA
IPC分类号： G02B15/20 , G02B13/18
CPC分类号： G02B15/14 , G02B15/173
摘要： PROBLEM TO BE SOLVED: To provide a compact zoom lens having a high zoom ratio and high optical performance over the entire zoom range.SOLUTION: The zoom lens comprises, in order from an object side to an image side: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; a fourth lens group having a negative refractive power; and a fifth lens group having a positive refractive power, in which each of the lens groups moves when zooming from a wide angle end to a telephoto end, the third lens group and the fifth lens group move as a unit when zooming, and an aperture stop is provided on the optical path of the fifth lens group. In the zoom lens, the third lens group or the fourth lens group moves when focusing. When the focal length of the second lens group is defined as f2, and the back focus at the wide angle end is defined as skw, the zoom lens satisfies the following conditional expression: 0.5
摘要翻译：要解决的问题：提供在整个变焦范围内具有高变焦比和高光学性能的紧凑型变焦镜头。解决方案：变焦透镜从物体侧到像侧依次包括具有正折光力的第一透镜组; 具有负屈光力的第二透镜组; 具有正屈光力的第三透镜组; 具有负屈光力的第四透镜组; 以及具有正折射力的第五透镜组，其中当从广角端到望远端变焦时，每个透镜组移动，第三透镜组和第五透镜组在变焦时作为一个单元移动，并且光圈停止设置在第五透镜组的光路上。在变焦镜头中，第三透镜组或第四透镜组在聚焦时移动。当第二透镜组的焦距被定义为f2，并且广角端的后焦点被定义为skw时，变焦透镜满足以下条件表达式：0.5 <¾f2¾/ skw <3.0。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2014072877A Imaging apparatus and imaging method 审中-公开
标题翻译：成像装置和成像方法
公开(公告)号：JP2014072877A
公开(公告)日：2014-04-21
申请号：JP2012220158
申请日：2012-10-02
申请人： Canon Inc , キヤノン株式会社
发明人： TASHIRO YOSHIHISA
IPC分类号： H04N5/232 , G02B13/00 , H04N5/345 , H04N5/347
摘要： PROBLEM TO BE SOLVED: To produce an image whose distortion component is sufficiently reduced, while suppressing the degradation of image quality of the peripheral part of the image, caused by optical distortion, in an imaging apparatus.SOLUTION: The imaging apparatus produces the image by sampling the output of the effective pixel of an imaging element 102 and performs distortion correction processing for reducing a component corresponding to the distortion aberration of an optical system 101, included in the image. When an output image having a predetermined number of pixels smaller than the total number of effective pixels of the imaging element is produced, a correction target image is produced by sampling the output of the number of effective pixels larger than the predetermined number of pixels and by using a sampling pitch different between the central part and peripheral part of the imaging element or so as to be equivalent to the case of using the sampling pitch. The distortion correction processing is performed to the correction target image and the output image is produced from the resulting image after the distortion correction processing.
摘要翻译：要解决的问题：在成像装置中产生失真成分充分降低的图像，同时抑制由光学变形引起的图像周边部分的图像质量的劣化。解决方案：成像装置通过对成像元件102的有效像素的输出进行采样，并执行用于减少与包括在图像中的光学系统101的失真像差相对应的分量的失真校正处理。当产生具有小于成像元件的有效像素总数的预定数量的像素的输出图像时，通过对大于预定数量像素的有效像素的数量的输出进行采样来产生校正目标图像，并且通过使用在成像元件的中心部分和周边部分之间不同的采样间距，或者等于使用采样间距的情况。对校正对象图像进行失真校正处理，并且在失真校正处理之后从所得到的图像产生输出图像。

7. 发明专利

JP2014026264A Zoom lens and image capturing device having the same 有权
标题翻译：具有相同功能的变焦镜头和图像拍摄设备
公开(公告)号：JP2014026264A
公开(公告)日：2014-02-06
申请号：JP2013096004
申请日：2013-04-30
申请人： Canon Inc , キヤノン株式会社
发明人： TASHIRO YOSHIHISA
IPC分类号： G02B15/20 , G02B13/18 , G02B15/16 , G03B5/00
CPC分类号： G02B13/009 , G02B15/177
摘要： PROBLEM TO BE SOLVED: To provide a zoom lens which has an entirely compact optical system and easily offers good optical performance even when an incident angle of a light flux to an imaging plane is large.SOLUTION: A zoom lens comprises a first lens group having negative refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power in order from an object side to an image side and distances between adjacent lens groups are altered for zooming or focusing or both. The first lens group and the second lens group move to shorten the distance therebetween when zooming from the wide angle end to the telephoto end, while the third lens group moves when focusing. Each lens group has at least one positive lens and one negative lens. A focal length f1 of the first lens group, a focal length f3 of the third lens group, a back focus distance (a glass block in air equivalence) skw at the wide angle end, and a focal length fw of the entire system at the wide angle end are each set appropriately.
摘要翻译：要解决的问题：为了提供具有完全紧凑的光学系统的变焦透镜，并且即使当与成像平面的光通量的入射角大时，也容易提供良好的光学性能。解决方案：变焦透镜包括具有具有正折射力的第二透镜组和具有负折射力的第三透镜组，从物体侧到像侧的顺序以及相邻透镜组之间的距离被改变以用于变焦或聚焦或两者。当从广角端到远摄端放大时，第一透镜组和第二透镜组移动以缩短其间的距离，而第三透镜组在聚焦时移动。每个透镜组具有至少一个正透镜和一个负透镜。第一透镜组的焦距f1，第三透镜组的焦距f3，广角端的后焦距（空气当量的玻璃块）skw以及整个系统的焦距fw 广角端各自适当设定。

8. 发明专利

JP2012255962A Zoom lens and image pickup apparatus including the same 有权
标题翻译：变焦镜头和图像拾取装置包括它们
公开(公告)号：JP2012255962A
公开(公告)日：2012-12-27
申请号：JP2011129910
申请日：2011-06-10
申请人： Canon Inc , キヤノン株式会社
发明人： TASHIRO YOSHIHISA , FUJISAKI TOYOKATSU
IPC分类号： G02B15/20 , G02B13/18 , G03B5/00
CPC分类号： G02B13/0065 , G02B13/009 , G02B13/12 , G02B15/17 , G02B15/173
摘要： PROBLEM TO BE SOLVED: To provide a zoom lens capable of easily obtaining a favorable image in a high zoom ratio and a wide field angle, and thinning the thickness of a camera or the like when being applied to the camera.SOLUTION: A zoom lens includes in order from an object side to an image side, a first lens group having a positive refractive power, a second lens groups having a negative refractive power, a reflective element, a subsequent lens group including two or more lens groups and an aperture stop; and, during zooming, two lens groups out of the first and second lens groups and the subsequent lens group move, and the reflective element is immobile. Moving distances M1 and M2 of the first and second lens groups during zooming from a wide-angle end to a telephoto end, a moving distance Ms of the lens group including the aperture stop or the aperture stop, a focal lengths fw and ft of the entire zoom lens at a wide-angle end and the telephoto end, imaging magnifications β2w and β2t of the second lens group, and a distance LSw in a wide-angle end from the first lens surface to the aperture stop are suitably set respectively.
摘要翻译：要解决的问题：提供一种能够以高变焦比和宽视野角容易地获得有利图像的变焦透镜，并且在施加到照相机时使相机等的厚度变薄。解决方案：变焦透镜包括从物体侧到像侧的顺序，具有正折光力的第一透镜组，具有负折光力的第二透镜组，反射元件，包括两个的后续透镜组或更多的透镜组和孔径光阑; 并且在变焦期间，在第一和第二透镜组之外的两个透镜组和随后的透镜组移动，并且反射元件是不动的。在从广角端到望远端的变焦期间，第一和第二透镜组的移动距离M1和M2，包括孔径光阑或孔径光阑的透镜组的移动距离Ms，焦距fw和ft 分别适当地设定在广角端和长焦端的整个变焦透镜，第二透镜组的成像倍率β2w和β2t以及从第一透镜表面到孔径光阑的广角端的距离LSw。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2010286819A Zoom lens, and image capturing apparatus with the same 有权
标题翻译：变焦镜头和图像捕捉设备
公开(公告)号：JP2010286819A
公开(公告)日：2010-12-24
申请号：JP2010035248
申请日：2010-02-19
申请人： Canon Inc , キヤノン株式会社
发明人： TASHIRO YOSHIHISA
IPC分类号： G02B15/16 , G02B13/18
CPC分类号： G02B15/177
摘要： PROBLEM TO BE SOLVED: To provide a compact zoom lens which corrects various aberrations well and has a superior optical performance, and to provide an image capturing apparatus with the compact zoom lens. SOLUTION: The zoom lens includes a first lens group L1 having a negative refractive power and a second lens group L2 having a positive refractive power in order from object to image sides, an interval between the first and second lens groups changes in a zoom operation, the first lens group L1 is constituted by a negative lens G1n and a positive lens G1p in order from the object to image sides, the negative lens G1n and positive lens G1p of the first lens group L1 are arranged at intervals, the second lens group L2 is constituted by three lenses including positive and negative lenses in order from the object to image sides, and a radius of curvature of a lens surface at the object side of the negative lens G1n constituting the first lens group L1, a shape of a negative lens having the maximum refractive power constituting the second lens group, and a refractive power of the second lens group are set, respectively and properly. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够很好地校正各种像差并且具有优异的光学性能的紧凑型变焦透镜，并且提供具有紧凑变焦透镜的图像捕获装置。解决方案：变焦镜头包括具有负屈光力的第一透镜组L1和具有正折射光焦度的第二透镜组L2，其中第一透镜组和第二透镜组之间的间隔在一个变焦操作时，第一透镜组L1由从物体到像侧的顺序由负透镜G1n和正透镜G1p构成，第一透镜组L1的负透镜G1n和正透镜G1p以间隔排列，第二透镜组透镜组L2由构成第一透镜组L1的负透镜G1n的物体侧的透镜面的曲率半径与从物体到像侧的顺序由正透镜和负透镜构成的三个透镜构成，分别适当地设定具有构成第二透镜组的最大折射力的负透镜和第二透镜组的折射光焦度。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2017116703A ズームレンズ及びそれを有する撮像装置审中-公开
公开(公告)号：JP2017116703A
公开(公告)日：2017-06-29
申请号：JP2015251330
申请日：2015-12-24
申请人：キヤノン株式会社 , Canon Inc
发明人： YOKOYAMA TAKAYOSHI , TASHIRO YOSHIHISA
IPC分类号： G02B15/20 , G02B13/18 , G03B5/00
CPC分类号： G02B15/173 , G02B27/0025 , G02B27/646
摘要：【課題】撮像装置に適用したとき、撮像装置の厚みを薄くすることができ、しかも防振時にも光学性能を良好に維持することが容易なズームレンズを得ること。【解決手段】物体側から像側へ順に配置された正の屈折力の第1レンズ群、負の屈折力の第2レンズ群、正の屈折力の第3レンズ群、1つ以上のレンズ群を有する後群より構成され、ズーミングに際して第1レンズ群は不動であり、ズーミングに際して隣り合うレンズ群の間隔が変化するズームレンズにおいて、第1レンズ群の光路中に光路を折り曲げる反射面を含む反射部材が配置されており、像ぶれ補正に際して、第2レンズ群は、光軸に対して垂直方向の成分を持つ方向に移動し、望遠端で無限遠に合焦しているときの第2レンズ群の横倍率をβ2tを適切に設定すること。【選択図】図1

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