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公开(公告)号：US09069157B2
公开(公告)日：2015-06-30
申请号：US13913930
申请日：2013-06-10
申请人： FUJIFILM Corporation
发明人： Akiko Nagahara
IPC分类号： G02B15/14 , G02B13/16 , G02B15/173 , G02B15/28
CPC分类号： G02B15/14 , G02B13/16 , G02B15/173 , G02B15/28
摘要： Composing a projection zoom lens with a first lens group disposed on the most magnification side and having a positive power, the lens group being fixed at the time of zooming, a final lens group disposed on the most reduction side and having a negative power, the lens group being fixed at the time of zooming, and a plurality of lens groups disposed between the first and final lens groups and moved at the time of zooming along an optical axis in association with each other for the zooming and correction of image plane shift arising from the zooming, in which the final lens group includes a lens having a positive power on the most reduction side.
摘要翻译： 构成具有设置在最大放大倍率上并具有正功率的第一透镜组的投影变焦透镜，在变焦时固定透镜组，设置在最大减少侧并具有负光焦度的最终透镜组， 透镜组在变焦时被固定，以及多个透镜组，其设置在第一和最后透镜组之间并且在沿着光轴的变焦时相互关联地移动，用于发生图像平面偏移的变焦和校正 其中最终透镜组包括在最大减少侧上具有正功率的透镜的变焦。
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公开(公告)号：US09001430B2
公开(公告)日：2015-04-07
申请号：US13557222
申请日：2012-07-25
申请人： Kuo-Chuan Wang , Sheng-Tang Lai
发明人： Kuo-Chuan Wang , Sheng-Tang Lai
IPC分类号： G02B15/14 , G02B15/173 , G02B15/28
CPC分类号： G02B13/18 , G02B3/04 , G02B9/60 , G02B15/14 , G02B15/167 , G02B15/173 , G02B15/28 , H04N5/2254 , H04N7/18
摘要： A lens module for capturing an object light-beam from an object-side is provided. The lens module includes a first lens group, a second lens group, a third lens group, a fourth lens group and a fifth lens group sequentially-arranged from the object-side to an image-side. The five lens groups respectively have at least one lens with positive refractive-power and at least one lens with negative refractive-power. The first, third and fifth lens groups are fixed groups, while the second and fourth lens groups are movable groups. An image apparatus including the lens module is also provided.
摘要翻译： 提供了一种用于从物体侧捕获物体光束的透镜模块。 透镜模块包括从物体侧到图像侧顺序地布置的第一透镜组，第二透镜组，第三透镜组，第四透镜组和第五透镜组。 五个透镜组分别具有至少一个具有正折光力的透镜和至少一个具有负折光力的透镜。 第一，第三和第五透镜组是固定组，而第二和第四透镜组是可移动组。 还提供了包括透镜模块的图像设备。
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公开(公告)号：US11099364B2
公开(公告)日：2021-08-24
申请号：US16451698
申请日：2019-06-25
申请人： FUJIFILM Corporation
发明人： Shinkichi Ikeda , Takuya Tanaka
摘要： A zoom lens consists of a positive first lens group that is fixed during zooming, a negative second lens group that moves during zooming, a positive third lens group that moves during zooming, a positive fourth lens group that moves during zooming, and a positive fifth lens group that is fixed during zooming. During zooming from a wide angle end to a telephoto end, the fourth lens group moves from an image side to an object side, the second lens group and a composite group consisting of the third lens group and the fourth lens group pass through points where respective lateral magnifications are −1 at the same time, the fifth lens group consists of a negative fifth A lens group that moves during anti-shake operation, and a positive fifth B lens group that is fixed during the anti-shake operation, and the lateral magnification of the fifth A lens group is negative.
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公开(公告)号：US10718929B2
公开(公告)日：2020-07-21
申请号：US16051804
申请日：2018-08-01
发明人： Shinichiro Saito , Makoto Nakahara
摘要： Provided is an optical system including, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power configured to move during focusing; and a third lens unit, wherein an interval between each pair of adjacent lens units is changed during focusing, wherein the first lens unit includes a positive lens arranged closest to the object side and an aperture stop, wherein the second lens unit consists of one negative lens, and wherein a distance on an optical axis from a lens surface closest to the object side in the optical system to an image plane, a focal length of the optical system, a refractive index of a material of the one negative lens, and an Abbe number of the material of the one negative lens are appropriately set.
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公开(公告)号：US10197780B2
公开(公告)日：2019-02-05
申请号：US15786712
申请日：2017-10-18
发明人： Koichi Sakuma
摘要： A zoom lens includes a positive first unit, a negative second unit, and a rear lens system. The rear lens system includes a positive unit A, a negative unit B, and a positive C. The first unit is not moved for zooming, the unit A is moved for zooming, and intervals between adjacent lens units are changed during zooming. The first unit includes positive and negative lenses, the unit C includes positive and negative lenses, the second unit includes negative lenses, and the unit B includes positive lenses. An Abbe number average value of the positive lenses in the first unit, an Abbe number average value of the negative lenses in the second unit, an Abbe number average value of the positive lenses in the unit B, and an Abbe number average value of the positive lenses in the unit C are appropriately set.
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公开(公告)号：US20170090168A1
公开(公告)日：2017-03-30
申请号：US15252921
申请日：2016-08-31
发明人： Kenta Sudo
IPC分类号： G02B15/173 , G02B5/00 , G02B15/28
CPC分类号： G02B15/173 , G02B5/005 , G02B15/28
摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a rear lens group including one or more lens units, and an aperture stop. During zooming, with the first lens unit not moving, the second lens unit and at least one of the lens units of the rear lens group move. In this zoom lens, the configuration of the third lens unit and the location of the aperture stop are appropriately set.
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公开(公告)号：US09588323B2
公开(公告)日：2017-03-07
申请号：US14645942
申请日：2015-03-12
IPC分类号： G02B15/17 , G02B15/173 , G02B15/177 , G02B15/28 , G02B15/26 , G02B15/24
CPC分类号： G02B15/17 , G02B15/173 , G02B15/177 , G02B15/24 , G02B15/26 , G02B15/28
摘要： The zoom lens according to the present invention includes in order from an object side to an image side: a first lens unit; a second lens unit; a third lens unit; an aperture stop; and a fourth lens unit; wherein a partial dispersion ratio θLm of a material of a positive lens Lm formed of a material having a highest partial dispersion ratio, which is contained in a rear group, a distance d from the aperture stop to an image plane, a distance dLm from the aperture stop to a positive lens Lm, an average value νRfp of Abbe constants of materials of positive lenses contained in a front group, an average value θRfp of partial dispersion ratios thereof, an average value νRfn of Abbe constants of materials of negative lenses contained in the front group, and an average value θRfn of partial dispersion ratios thereof are each appropriately set.
摘要翻译： 根据本发明的变焦透镜从物体侧到图像侧依次包括：第一透镜单元; 第二透镜单元; 第三透镜单元; 孔径光阑; 和第四透镜单元; 其中由包含在后组中的具有最高分散比的材料形成的正透镜Lm的材料的部分色散比θLm，从孔径光阑到像面的距离d，距离d 孔径光阑到正透镜Lm，前组中包含的正透镜的材料的阿贝常数的平均值νRfp，其部分色散比的平均值θRfp，负透镜的材料的阿贝常数的平均值νRfn包含在 正面组和其部分色散比的平均值θRfn分别适当地设定。
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公开(公告)号：US09541747B2
公开(公告)日：2017-01-10
申请号：US14140472
申请日：2013-12-25
申请人： Yu-Hung Chou , Pei-Ching Liu
发明人： Yu-Hung Chou , Pei-Ching Liu
IPC分类号： G02B15/177 , G02B15/16 , G02B15/28
CPC分类号： G02B15/177 , G02B15/161 , G02B15/28
摘要： A zoom lens including a first lens group and a second lens group is provided. Refractive powers of the first lens group and the second lens group are respectively negative and positive. The first lens group includes a first lens, a second lens, and a third lens arranged in sequence from an object side to an image side. The second lens group is disposed between the first lens group and the image side, and includes a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens arranged in sequence from the object side to the image side. The zoom lens satisfies −2.4
摘要翻译： 提供了包括第一透镜组和第二透镜组的变焦透镜。 第一透镜组和第二透镜组的折射率分别为负和正。 第一透镜组包括从物体侧到像侧依次布置的第一透镜，第二透镜和第三透镜。 第二透镜组设置在第一透镜组和像侧之间，并且包括从物体侧到像侧依次布置的第四透镜，第五透镜，第六透镜，第七透镜和第八透镜。 变焦透镜满足-2.4
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公开(公告)号：US20240353660A1
公开(公告)日：2024-10-24
申请号：US18291063
申请日：2022-07-20
申请人： LG INNOTEK CO., LTD.
发明人： Ji Sung KIM , Jung Goo JI
CPC分类号： G02B15/143105 , G02B13/0045 , G02B13/009 , G02B15/28
摘要： The optical system according to the embodiment includes a first lens group, a second lens group, and a third lens group sequentially arranged along an optical axis from an object side to an image side and wherein each of the first to third lens groups including at least one lens; wherein a refractive power sign of the first lens group and a refractive power sign of the second lens group are opposite to each other, and wherein the first lens group, the second lens group, and the third lens group satisfy Equation 1 below.
0.6-
公开(公告)号：US10754130B2
公开(公告)日：2020-08-25
申请号：US16071348
申请日：2017-01-30
申请人： Nikon Corporation
发明人： Takahiro Ishikawa
IPC分类号： G02B15/173 , G02B15/14 , G02B15/28
摘要： A zoom lens comprises, in order from an object: a first lens group (G1) having a positive refractive power, a second lens group (G2) having a negative refractive power, a third lens group (G3) having a positive refractive power, a fourth lens group (G4) having a negative refractive power, and a fifth lens group (G5) having a positive refractive power, in which: intervals between adjacent lens groups change and the first lens group (G1), the second lens group (G2), the third lens group (G3), and the fourth lens group (G4) move upon zooming from a wide angle end state to a telephoto end state; and following conditional expressions are satisfied: 1.80
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