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公开(公告)号：US20200310091A1
公开(公告)日：2020-10-01
申请号：US16828641
申请日：2020-03-24
Applicant: FUJIFILM Corporation
Inventor： Masanao KAWANA , Yasutaka SHIMADA , Takuya TANAKA , Takuya TANAKA
Abstract: The zoom lens consists of, in order from an object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a positive fifth lens group. During zooming, the second lens group, the third lens group, and the fourth lens group move. The first lens group consists of, in order from an object side, a negative first a lens group, a positive first b lens group that moves during focusing, and a positive first c lens group. The second lens group includes one positive lens and one or more negative lenses successively in order from a most object side to an image side.
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公开(公告)号：US20150198792A1
公开(公告)日：2015-07-16
申请号：US14598521
申请日：2015-01-16
Applicant: FUJIFILM Corporation
Inventor： Masanao KAWANA
IPC: G02B15/167 , G02B27/64
CPC classification number: G02B15/167 , G02B15/17 , G02B15/173 , G02B27/646
Abstract: The zoom lens consists essentially of a positive first lens group, a negative second lens group, an aperture stop, a third lens group, a positive fourth lens group and a fifth lens group in this order from the object side. The first, third, and fifth lens groups are fixed while the second and the fourth lens groups move when changing magnification from the wide angle end to the telephoto end, and the fourth lens group moves when focusing is performed. The fifth lens group consists essentially only of a single cemented lens having a meniscus shape with a convex surface toward the image side, and conditional formulas (1), (2) are satisfied when the maximum image height is Y, the air equivalent back focus is Bf and the distance along the optical axis from the aperture stop to the peak of the most-image-side lens surface is Lsr: 0.05
Abstract translation: 变焦透镜从物体侧开始依次由正的第一透镜组，负的第二透镜组，孔径光阑，第三透镜组，正的第四透镜组和第五透镜组构成。 当从广角端到远摄端改变放大倍率时，第一和第三透镜组固定，而第二透镜组和第四透镜组移动，并且第四透镜组在进行聚焦时移动。 第五透镜组基本上仅由具有朝向图像侧的凸面的弯月形状的单个胶合透镜构成，并且当最大图像高度为Y时满足条件式（1），（2），空气当量后焦点 是Bf，从孔径光阑到最大像侧透镜表面的峰值的光轴的距离为Lsr：0.05
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公开(公告)号：US20150226947A1
公开(公告)日：2015-08-13
申请号：US14695479
申请日：2015-04-24
Applicant: FUJIFILM Corporation
Inventor： Masanao KAWANA , Masaru AMANO , Yukiko NAGATOSHI
IPC: G02B15/177 , G02B13/04 , G02B13/16 , G02B27/00
CPC classification number: G02B15/177 , G02B13/04 , G02B13/16 , G02B13/22 , G02B27/0025 , G02B27/646
Abstract: A projection zoom lens essentially consists of a negative first lens group, a positive second lens group through the fourth lens group that move along the optical axis while changing magnification, a fifth lens group that moves while changing magnification, and a positive sixth lens group disposed in this order from the magnification side, wherein the projection zoom lens satisfies conditional formulas (1) and (2) below: 1.9
Abstract translation: 投影变焦透镜基本上由负的第一透镜组，通过第四透镜组的正的第二透镜组在改变倍率的同时沿着光轴移动;第五透镜组，其在改变倍率的同时移动;以及正的第六透镜组， 其中投影变焦透镜满足以下条件式（1）和（2）：1.9
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公开(公告)号：US20150077722A1
公开(公告)日：2015-03-19
申请号：US14488720
申请日：2014-09-17
Applicant: FUJIFILM Corporation
Inventor： Tomoyuki BABA , Masanao KAWANA , Masaru AMANO , Takeshi KAMIYA
IPC: G03B21/28
CPC classification number: G03B21/28 , G02B15/177 , G02B17/08 , G02B17/0852 , G02B17/0856
Abstract: In a projection optical system that projects an image displayed on an image display device arranged on a reduction-side conjugate plane onto a magnification-side conjugate plane, as a magnified image, the projection optical system includes a refractive optical system and a reflective optical system having negative refractive power in this order from a reduction side. Further, the following conditional formula (1) is satisfied: L/D+2ωmin/ωmax≦1.01 (1).
Abstract translation: 在投影光学系统中，投影光学系统将投影在还原侧共轭面上的图像显示装置上显示的图像投影到倍率共轭面上作为放大图像，投影光学系统包括折射光学系统和反射光学系统 从还原侧依次具有负折射力。 此外，满足以下条件式（1）：L / D +2ωmin/ωmax＆nlE; 1.01（1）。
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公开(公告)号：US20220382027A1
公开(公告)日：2022-12-01
申请号：US17748443
申请日：2022-05-19
Applicant: FUJIFILM Corporation
Inventor： Daiki KOMATSU , Masanao KAWANA , Motoari OTA , Takuya TANAKA
Abstract: The zoom lens consists of, in order from the object side, a first lens group that has a positive refractive power, a second lens group that has a positive refractive power, and a subsequent group. During zooming, a spacing between the first lens group and the second lens group changes, and a spacing between the second lens group and the subsequent group changes. The subsequent groups include a focusing group that moves during focusing.
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Patent Agency Ranking
公开(公告)号：US20180231775A1
公开(公告)日：2018-08-16
申请号：US15895146
申请日：2018-02-13
Applicant: FUJIFILM Corporation
Inventor： Masanao KAWANA
CPC classification number: G02B27/0101 , B60K35/00 , B60K2370/347 , G02B5/005 , G02B17/0605
Abstract: A head-up display device includes a first mirror having power, a second mirror having power, and a light-blocking member that is provided with an aperture. An image reflective surface has a convergence action. Display light emitted from an image display surface is reflected by the first mirror and the second mirror in this order, passes through the aperture, and reaches the image reflective surface. The image display surface is disposed on the same side as an observer and on a side opposite to the first mirror with respect to luminous flux that travels toward the aperture from the second mirror. The first mirror is a concave mirror. The shape of the cross-section of the second mirror taken along a front-rear direction is a convex shape.
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公开(公告)号：US20170199378A1
公开(公告)日：2017-07-13
申请号：US15385182
申请日：2016-12-20
Applicant: FUJIFILM Corporation
Inventor： Masanao KAWANA
CPC classification number: G02B27/0101 , B60K35/00 , B60K2370/1529 , B60K2370/23 , B60K2370/25 , B60K2370/31 , B60K2370/333 , B60K2370/334 , G02B2027/0112 , G02B2027/0114 , G02B2027/0127 , G02B2027/0141 , G06T19/006
Abstract: An optical filter having spectral properties that reflects light of a first wavelength band and transmits light of a second wavelength band that does not include the first wavelength band is provided between a greater distance optical system that displays a virtual image at a greater distance from an image reflection surface and a closer distance optical system that displays a virtual image at a closer distance from the image reflection surface. The optical filter aligns the optical paths of display light of the greater distance optical system and the closer distance optical system and guides the display light to the image reflection surface. Further, the powers of the greater distance optical system and the closer distance optical system are set to be different.
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公开(公告)号：US20150109671A1
公开(公告)日：2015-04-23
申请号：US14582891
申请日：2014-12-24
Applicant: FUJIFILM Corporation
Inventor： Masanao KAWANA
CPC classification number: G02B15/16 , G02B13/18 , G02B15/173 , G02B27/646 , G03B5/00 , H04N5/225
Abstract: A zoom lens substantially consists of, in order from the object side, a positive first lens group, a negative second lens group, a positive third lens group, and a positive fourth lens group. During magnification change from the wide-angle end to the telephoto end, the first and the third lens groups are fixed in the optical axis direction, the second lens group is moved toward the image side, and the fourth lens group is moved along the optical axis. The first lens group consists of, in order from the object side, a cemented lens formed by a negative lens and a positive lens, and two positive lenses. The third lens group consists of, in order from the object side, a fixed front group, and a positive rear group being able to be shifted in directions intersecting with the optical axis to shift the image formed on the reduced side.
Abstract translation: 变焦透镜基本上由物体侧依次包括正的第一透镜组，负的第二透镜组，正的第三透镜组和正的第四透镜组。 在从广角端到望远端的倍率变化期间，第一透镜组和第三透镜组在光轴方向上被固定，第二透镜组朝向像侧移动，并且第四透镜组沿着光学方向移动 轴。 第一透镜组从物体的顺序依次包括由负透镜和正透镜形成的胶合透镜以及两个正透镜。 第三透镜组从物体侧依次包括固定前组和正后组，其能够在与光轴相交的方向上移动，以移动在缩小侧形成的图像。
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公开(公告)号：US20140327888A1
公开(公告)日：2014-11-06
申请号：US14336472
申请日：2014-07-21
Applicant: FUJIFILM Corporation
Inventor： Masanao KAWANA
CPC classification number: G02B15/161 , G02B13/16 , G02B15/177 , G03B21/142
Abstract: A projection zoom lens substantially consists of a negative first lens group and a positive second lens group, in this order from the magnification side. The first lens group substantially consists of a first lens which is a negative meniscus lens with a convex surface toward the magnification side. The second lens group substantially consists of a positive second lens, a third lens which is a positive meniscus lens with a convex surface toward the magnification side, a negative fourth lens, and a positive fifth lens, in this order from the magnification side. The first lens group and the second lens group move along the direction of the optical axis while changing magnification. At least one of the positive lenses within the entire system has an Abbe number and a refractive index within a predetermined range. The refractive indices of the first to third lenses satisfy a predetermined conditional expression.
Abstract translation: 投影变焦透镜基本上由放大倍率的顺序由负的第一透镜组和正的第二透镜组组成。 第一透镜组基本上由具有朝向放大倍率的凸面的负弯月形透镜的第一透镜组成。 第二透镜组基本上由放大倍率的顺序构成为正的第二透镜，作为朝向倍率侧的凸面的正弯月形透镜的第三透镜，负第四透镜和正的第五透镜。 第一透镜组和第二透镜组在改变放大率的同时沿着光轴的方向移动。 整个系统中的至少一个正透镜的阿贝数和折射率在预定范围内。 第一至第三透镜的折射率满足预定条件表达式。
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公开(公告)号：US20220390726A1
公开(公告)日：2022-12-08
申请号：US17748548
申请日：2022-05-19
Applicant: FUJIFILM Corporation
Inventor： Takuya TANAKA , Masanao KAWANA , Motoari OTA , Daiki KOMATSU
Abstract: A zoom lens consists of, in order from the object side, a first lens group that has a positive refractive power, a middle group that includes a plurality of lens groups in which the spacings between adjacent lens groups change during zooming, and the final lens group. The focusing group that moves during focusing is disposed in the middle group. The zoom lens satisfies predetermined conditional expressions.
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