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公开(公告)号：US09638902B2
公开(公告)日：2017-05-02
申请号：US14713465
申请日：2015-05-15
Applicant: FUJIFILM Corporation
Inventor： Yukiko Nagatoshi
IPC: G02B15/14 , G02B15/17 , G02B15/173 , G02B13/16 , G02B9/60 , G02B13/00 , G02B13/04 , G02B5/00 , G02B15/20 , G02B15/177
CPC classification number: G02B15/17 , G02B5/005 , G02B9/60 , G02B13/002 , G02B13/0045 , G02B13/009 , G02B13/04 , G02B13/16 , G02B15/173 , G02B15/177 , G02B15/20
Abstract: The projection zoom lens essentially consists of a positive first lens group fixed while changing magnification and the second lens group through the fourth lens group which move while changing magnification, and a fifth lens group fixed while changing magnification; and an aperture stop positioned between adjacent moving lens groups or within one moving lens group, whereinthe numerical number of the zoom lens is set to be constant over the entire zoom range,the reduction side is configured to be telecentric, andthe projection zoom lens satisfies conditional formulas (4) and (5): 2.0
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92.发明申请公开(公告)号：US20170075094A1
公开(公告)日：2017-03-16
申请号：US15265468
申请日：2016-09-14
Applicant: Konica Minolta, Inc.
Inventor： Yusuke Imai , Kazuhiko Inoue
CPC classification number: G02B15/177 , G02B5/005 , G02B13/16 , G02B15/20 , G02B27/0025
Abstract: A projection lens system includes a first lens group including a 1a-th lens group having a negative refractive power, a 1b-th lens group having a positive or negative refractive power, and a 1c-th lens group having a positive or negative refractive power. During a zoom, the first lens group remains stationary on an optical axis. During a focus from a remote distance side to a close distance side, the 1a-th lens group remains stationary on the optical axis while the 1b-th and 1c-th lens groups move toward the enlargement conjugate side along different loci respectively. Conditional formula −4.7
Abstract translation: 投影透镜系统包括具有负折光力的第1a透镜组的第一透镜组，具有正或负屈光力的第1b透镜组和具有正或负折光力的第1c透镜组 。 在变焦期间，第一透镜组在光轴上保持静止。 在从远距离侧到近距离侧的焦点处，第1a透镜组在光轴上保持静止，而第1b和第1c透镜组分别沿着不同的位置朝向放大共轭侧移动。 在远距离和近距离侧都满足条件式-4.7
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公开(公告)号：US20170059971A1
公开(公告)日：2017-03-02
申请号：US15230816
申请日：2016-08-08
Applicant: Yohei Takano , Hibiki Tatsuno , Yasuyuki Shibayama
Inventor： Yohei Takano , Hibiki Tatsuno , Yasuyuki Shibayama
CPC classification number: G02B15/20 , G02B7/021 , G02B13/16 , G02B17/00 , G02B17/08 , G02B17/0852 , G02B17/0896 , G03B21/142 , G03B21/28
Abstract: An optical system includes a reflective optical system on a magnification side along an optical path of the projection optical system and a refractive optical system on a reduction side along the optical path. The reflective optical system includes one reflective optical element having a power. The refractive optical system includes a front group on the magnification side and a rear group on the reduction side. The front group having, in order from the magnification side toward the reduction side, a first lens group with a positive or negative refractive power, a second lens group, and a third lens group with a positive refractive power. The rear group has a positive refractive power. The first lens group moves to the magnification side, and the second lens group and the third lens group move to the reduction side in a change in focus from a long distance to a short distance.
Abstract translation: 光学系统包括沿着投影光学系统的光路的放大侧的反射光学系统和沿着光路的还原侧的折射光学系统。 反射光学系统包括具有功率的一个反射光学元件。 折射光学系统包括放大倍率侧的前组和还原侧的后组。 前组具有从放大侧朝向还原侧的顺序具有正屈光力或负折射光焦度的第一透镜组，第二透镜组和具有正屈光力的第三透镜组。 后组具有正屈光力。 第一透镜组移动到放大倍率侧，第二透镜组和第三透镜组从长距离到短距离移动到焦距变化的缩小侧。
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公开(公告)号：US09568715B2
公开(公告)日：2017-02-14
申请号：US14855436
申请日：2015-09-16
Applicant: FUJIFILM Corporation
Inventor： Ryoko Tomioka
IPC: G02B15/14 , G02B9/60 , G02B15/16 , G02B15/173 , G02B15/20 , G02B13/00 , G02B27/00 , G02B17/08 , G02B5/00 , G02B15/177
CPC classification number: G02B15/16 , G02B5/005 , G02B9/60 , G02B13/0045 , G02B13/006 , G02B13/0065 , G02B13/009 , G02B15/14 , G02B15/173 , G02B15/177 , G02B15/20 , G02B17/08 , G02B27/0025
Abstract: A zoom lens consists of, in order from the object-side, a first lens-group having positive refractive power, and which is fixed during magnification change, a second lens-group having negative refractive power, and which moves during magnification change, a third lens-group having positive refractive power, and which is fixed during magnification change, a fourth lens-group having positive refractive power, and which moves during magnification change, and a fifth lens-group having negative refractive power, and which moves during magnification change. The first lens-group consists of, in order from the object-side, a front group having negative refractive power, a reflection member that bends an optical path and a rear group having positive refractive power. The fourth lens-group includes at least a cemented lens of a positive lens and a negative lens, and the following conditional expression (1) is satisfied: 0.8
Abstract translation: 变焦透镜从物体依次包括具有正折光力的第一透镜组，并且在放大变化期间被固定，具有负折光力的第二透镜组，并且在放大变化期间移动， 具有正折光力的第三透镜组，并且在放大变化期间被固定，具有正折光力并且在放大变化期间移动的第四透镜组，以及具有负屈光力的第五透镜组，并且在放大期间移动 更改。 第一透镜组从物体侧依次包括具有负屈光力的前组，弯曲光路的反射构件和具有正屈光力的后组。 第四透镜组至少包括正透镜和负透镜的胶合透镜，并且满足以下条件表达式（1）：0.8
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公开(公告)号：US20170031141A1
公开(公告)日：2017-02-02
申请号：US15215883
申请日：2016-07-21
Applicant: FUJIFILM Corporation
Inventor： Ukyo TOMIOKA , Michio CHO
IPC: G02B15/173 , G02B5/00 , G02B15/20 , G02B27/00
CPC classification number: G02B15/20 , G02B13/009 , G02B15/16 , G02B15/173 , G02B15/24 , G02B15/28
Abstract: A variable magnification optical system includes, in order from the object side: a positive first lens group, which is fixed when changing magnification; a negative second lens group that moves from the object side to the image side when changing magnification from the wide angle end to the telephoto end; and a rearward lens group having a positive refractive power throughout the entire variable magnification range that includes at least one lens group that moves when changing magnification. The first lens group includes, in order from the object side, a positive first lens group front group, a positive first lens group middle group, and a first lens group rear group constituted by a negative lens. The first lens group front group and first lens group middle group include cemented lenses formed by cementing a negative lens and a positive lens, provided in this order from the object side, together.
Abstract translation: 可变放大率光学系统从物体的顺序依次包括：正的第一透镜组，其在改变倍率时被固定; 当从广角端到远摄端改变放大倍率时，从物体侧移动到像侧的负第二透镜组; 以及在整个可变倍率范围内具有正折射力的后透镜组，其包括在改变倍率时移动的至少一个透镜组。 第一透镜组从物体侧依次包括由负透镜构成的正的第一透镜组正面组，正的第一透镜组中间组以及第一透镜组后组。 第一透镜组前组和第一透镜组中组包括从物体侧依次提供的固定负透镜和正透镜而形成的胶合透镜。
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Patent Agency Ranking
公开(公告)号：US20170031140A1
公开(公告)日：2017-02-02
申请号：US15215786
申请日：2016-07-21
Applicant: FUJIFILM Corporation
Inventor： Ukyo TOMIOKA , Michio CHO
IPC: G02B15/173 , G02B5/00 , G02B15/20 , G02B27/00
CPC classification number: G02B15/14 , G02B13/009 , G02B15/173 , G02B15/20 , G02B27/0025
Abstract: A variable magnification optical system includes, in order from the object side: a positive first lens group; a negative second lens group; a positive third lens group; a negative fourth lens group; and a positive fifth lens group. When changing magnification from the wide angle end to the telephoto end, the first and third lens groups are fixed with respect to an image formation plane, the second lens group moves toward the image side, the fourth lens group moves, and the distance between the fourth and fifth lens groups changes. A rearward lens group constituted by the third, fourth, and fifth lens groups has a positive refractive power throughout the variable magnification range. The transverse magnification ratio of the fourth lens group when focused on an object at infinity is negative throughout the variable magnification range.
Abstract translation: 可变放大率光学系统从物体侧依次包括：正的第一透镜组; 负第二透镜组; 正第三透镜组; 负第四透镜组; 和正五眼镜组。 当从广角端到望远端的倍率变化时，第一透镜组和第三透镜组相对于图像形成平面固定，第二透镜组朝向像侧移动，第四透镜组移动， 第四和第五镜头组发生变化。 由第三，第四和第五透镜组构成的后透镜组在整个可变放大范围内具有正折射力。 在整个可变放大范围内，当聚焦在无限远物体上时，第四透镜组的横向放大率为负。
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公开(公告)号：US09557538B2
公开(公告)日：2017-01-31
申请号：US14711095
申请日：2015-05-13
Applicant: FUJIFILM Corporation
Inventor： Masaru Amano , Yukiko Nagatoshi , Masanao Kawana
IPC: G02B15/14 , G02B9/64 , G02B13/16 , G02B15/177 , G02B15/20 , G02B27/00 , G02B9/60 , G02B13/00 , G02B9/62 , G02B5/00 , G02B13/04 , G02B13/18 , G02B27/64
CPC classification number: G02B13/16 , G02B5/005 , G02B9/60 , G02B9/62 , G02B9/64 , G02B13/002 , G02B13/0045 , G02B13/009 , G02B13/04 , G02B13/18 , G02B15/177 , G02B15/20 , G02B27/0025 , G02B27/646
Abstract: A projection zoom lens constituted by: a negative first lens group; a positive final lens group; and moving lens groups between the first and the final lens groups that move independently while changing magnification, satisfies the conditional formulae below: 1.00
Abstract translation: 投影变焦透镜，由以下构成：负第一透镜组; 正镜头组; 并且在改变放大倍数时独立移动的第一和最终透镜组之间的移动透镜组满足以下条件公式：1.00 <（Rf2-Rr2）/（Rf2 + Rr2）（1）0.00＆nlE;（Rr2-Rf3）/ （Rr2 + Rf3）<0.15（2）2.5
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公开(公告)号：US20170023781A1
公开(公告)日：2017-01-26
申请号：US14804283
申请日：2015-07-20
Applicant: Young Optics Inc.
Inventor： Kuo-Chuan Wang , Bing-Ju Chiang , Pin-Hsuan Hsieh , Kai-Yun Chen , Yu-Hung Chou
IPC: G02B15/177 , G02B13/18 , G02B13/14 , G02B15/16 , G02B15/20
CPC classification number: G02B15/177 , G02B13/14 , G02B13/18
Abstract: A zoom lens arranged along an optical axis includes a first lens group and a second lens group. The second lens group has at least one aspheric lens. The first lens group moves toward an image side and the second lens group moves away from the image side along the optical axis during zooming. The first lens group is moved for focusing, and the second lens group is moved for zooming.
Abstract translation: 沿着光轴布置的变焦透镜包括第一透镜组和第二透镜组。 第二透镜组具有至少一个非球面透镜。 第一透镜组朝向图像侧移动，并且第二透镜组在变焦期间沿着光轴移动远离像侧。 第一透镜组被移动以进行聚焦，并且第二透镜组被移动用于变焦。
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公开(公告)号：US20160363743A1
公开(公告)日：2016-12-15
申请号：US14855851
申请日：2015-09-16
Applicant: HANWHA TECHWIN CO., LTD.
Inventor： Jiyeong YOO
IPC: G02B15/177 , G02B15/20 , G02B5/20
CPC classification number: G02B15/177 , G02B5/208 , G02B13/146 , G02B15/161 , G02B15/163 , G02B15/20
Abstract: A zoom lens system includes: a first lens group having a negative refractive power; a second lens group having a positive refractive power; and an aperture between the first and second lens groups, wherein the first lens group and the second lens group are sequentially arranged from an object side to an image side, wherein the zoom lens system performs zooming and focusing by moving the second and first lens groups, respectively, along an optical axis, and satisfies a conditional expression below: 2.5
Abstract translation: 其中fw表示广角端的整个焦距，ft表示在远摄端的整个焦距，并且Tw表示最靠近物体侧的镜头的图像平面和物体侧透镜表面之间的距离 第一透镜组在广角端，Y表示自由基轴图像高度。
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公开(公告)号：US20160349505A1
公开(公告)日：2016-12-01
申请号：US15233075
申请日：2016-08-10
Applicant: Olympus Corporation
Inventor： Kazuteru Kawamura , Akiko Naito , Keitaro Yokoyama , Toshio Takahashi
IPC: G02B27/00 , G02B15/20 , G02B5/00 , G02B15/177
CPC classification number: G02B27/0025 , G02B3/14 , G02B5/005 , G02B7/09 , G02B9/00 , G02B9/34 , G02B9/60 , G02B13/002 , G02B13/0045 , G02B13/006 , G02B13/009 , G02B13/04 , G02B15/14 , G02B15/16 , G02B15/163 , G02B15/177 , G02B15/20 , G03B13/18
Abstract: A zoom lens includes a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a negative refractive power. At the time of zooming, distances between the lens units change, and a distance between the first lens unit and the second lens unit at a telephoto end is shorter than at a wide angle end. An aperture stop is disposed on the image side of an image-side surface of the first lens unit, and on the object side of an image-side surface of the second lens unit. The second lens unit includes two sub lens units. The object-side sub lens unit in the second lens unit includes one lens component. The following conditional expressions are satisfied. 3.0
Abstract translation: 变焦透镜包括具有负屈光力的第一透镜单元，具有正折光力的第二透镜单元和具有负折光力的第三透镜单元。 在变焦时，透镜单元之间的距离变化，并且在远摄端处的第一透镜单元和第二透镜单元之间的距离比广角端短。 孔径光阑设置在第一透镜单元的图像侧表面的像侧，以及第二透镜单元的图像侧表面的物体侧。 第二透镜单元包括两个子透镜单元。 第二透镜单元中的物体侧子透镜单元包括一个透镜部件。 满足以下条件表达式。 3.0 <＆Dgr; D12 / ERS <4.5 1.05 <| f3 / fUN21 | <2.1
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