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公开(公告)号：US20220269052A1
公开(公告)日：2022-08-25
申请号：US17734497
申请日：2022-05-02
申请人： FUJIFILM Corporation
发明人： Yukiko NAGATOSHI , Masao MORI
摘要： A projection lens having an optical system includes: an incidence lens on which light from an electrooptic element is incident; and an emission lens that is positioned closest to a magnification side and emits an image toward a projection surface, in which an incidence optical axis of the incidence lens is shifted in a first direction orthogonal to the incidence optical axis with respect to a center of a screen of the electrooptic element, a projection angle, which is an angle of an emission optical axis of the emission lens with respect to the projection surface, is less than 90°, and assuming that an effective diameter of the emission lens is DE, and a focal length of an entire optical system including the emission lens is f, and a half angle of view of the entire optical system is ω, ω is equal to or greater than 60°, and a value of PA defined by Expression (1) is equal to or greater than 0.1 and equal to or less than 7. PA=DE/(f×tan ω) (1)
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公开(公告)号：US20170059816A1
公开(公告)日：2017-03-02
申请号：US15222193
申请日：2016-07-28
申请人： FUJIFILM Corporation
发明人： Masao MORI
CPC分类号： G02B9/62 , G02B13/0045 , G02B13/06
摘要： An imaging lens is constituted by, in order from the object side to the image side: a first lens having a negative refractive power and a concave surface toward the image side; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface toward the image side; a fourth lens having a negative refractive power and a concave surface toward the image side; a biconvex fifth lens which is cemented to the fourth lens; and a sixth lens having a negative refractive power and a concave surface toward the object side. Conditional Formula (1) below is satisfied: −2.1
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公开(公告)号：US20150002946A1
公开(公告)日：2015-01-01
申请号：US14487120
申请日：2014-09-16
申请人： FUJIFILM CORPORATION
发明人： Masao MORI
IPC分类号： G02B9/64
CPC分类号： G02B9/64 , G02B3/04 , G02B5/005 , G02B7/04 , G02B9/04 , G02B13/0015 , G02B13/002 , G02B13/0045 , G02B13/006 , G02B13/04 , G02B13/18 , G02B15/14 , G02B15/167 , G02B15/22 , G02B27/0025
摘要： An imaging lens substantially consisting of a first lens group, a stop, and a second lens group in this order from the object side, the first lens group includes at least a positive lens, a negative meniscus lens with a convex surface toward the object side, a biconcave negative lens, and a cemented lens substantially constituted by two lenses, which are a positive lens and a negative lens, in this order from the object side; the second lens group includes at least a first positive lens with a convex surface toward the image side, a cemented lens substantially constituted by two lenses, which are a positive lens and a negative lens, and a second positive lens with a convex surface toward the image side, in this order from the object side; and a predetermined conditional expression is satisfied.
摘要翻译： 从物体侧依次形成有第一透镜组，第二透镜组和第二透镜组的成像透镜，第一透镜组至少包括正透镜，具有朝向物体侧的凸面的负弯月形透镜 ，双凹面负透镜，以及从物体侧依次由两个透镜基本上由正透镜和负透镜构成的胶合透镜; 第二透镜组至少包括具有朝向像侧的凸面的第一正透镜，基本上由正透镜和负透镜的两个透镜构成的胶合透镜，以及具有朝向图像侧的凸表面的第二正透镜 图像侧，从物体侧按此顺序; 并且满足预定的条件表达式。
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公开(公告)号：US20140340767A1
公开(公告)日：2014-11-20
申请号：US14274103
申请日：2014-05-09
申请人： FUJIFILM Corporation
发明人： Masao MORI , Ryoko OTOMO
IPC分类号： G02B13/00
CPC分类号： G02B13/004 , G02B9/34 , G02B13/04
摘要： An imaging lens is composed of a first lens having a negative meniscus shape with a convex surface on the object side, a negative second lens, a positive third lens, an aperture stop, a negative fourth lens, and a positive fifth lens disposed in order from the object side. The fourth and the fifth lens are cemented with an interface which is convex on the object side and has an aspherical shape. If the radius of curvature is taken as R9 and the focal length of the entire system is taken as f, the imaging lens satisfies a conditional expression given below: 1.0
摘要翻译： 成像透镜由具有在物体侧具有凸表面的负弯液面形状的第一透镜，负第二透镜，正三透镜，孔径光阑，负第四透镜和正第五透镜顺序地布置 从物体侧。 第四透镜和第五透镜被粘合在物体侧凸起并具有非球面形状的界面。 如果将曲率半径取为R9，将整个系统的焦距设为f，则成像透镜满足以下条件式：1.0
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公开(公告)号：US20140118849A1
公开(公告)日：2014-05-01
申请号：US14149844
申请日：2014-01-08
申请人： FUJIFILM Corporation
发明人： Masao MORI
CPC分类号： G02B13/18 , G02B9/04 , G02B13/004 , G02B13/04
摘要： An imaging lens formed of 4 lenses, in which a negative first lens having a meniscus shape with a convex surface on the object side, a biconvex positive second lens, a negative third lens having a concave surface on the image side, and a positive fourth lens having a convex surface on the object side, arranged in order from the object side, and the imaging lens satisfies conditional expressions (1): L12/f
摘要翻译： 一种由4个透镜形成的成像透镜，其中具有在物体侧具有凸面的弯月面形状的负第一透镜，双凸正第二透镜，在像侧具有凹面的负第三透镜和正像素 透镜在物体侧具有凸起表面，从物体侧依次布置，并且成像透镜满足条件表达式（1）：L12 / f <0.82; （2）：2.3
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公开(公告)号：US20170153449A1
公开(公告)日：2017-06-01
申请号：US15359633
申请日：2016-11-23
申请人： FUJIFILM Corporation
发明人： Masao MORI
CPC分类号： G02B27/0025 , B60R1/081 , B60R1/12 , B60R11/04 , B60R2001/1253 , G02B9/62 , G02B13/0045 , G02B13/06 , H04N5/23254 , H04N5/247 , H04N7/181
摘要： An imaging lens is constituted by, in order from the object side to the image side: a negative first lens having a concave surface toward the image side; a positive second lens having a convex surface toward the image side; a negative third lens having a concave surface toward the image side; a positive biconvex fourth lens; a positive biconvex fifth lens; and a negative sixth lens having a concave surface toward the object side. Conditional Formula (1) related to the combined focal length f12 of the first lens and the second lens and the focal length f of the entire lens system is satisfied: −5
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公开(公告)号：US20170153448A1
公开(公告)日：2017-06-01
申请号：US15359632
申请日：2016-11-23
申请人： FUJIFILM Corporation
发明人： Masao MORI
CPC分类号： G02B27/0025 , B60R1/081 , B60R1/12 , B60R11/04 , B60R2001/1253 , G02B9/62 , G02B13/0045 , H04N5/247 , H04N7/181
摘要： An imaging lens is constituted by, in order from the object side to the image side: a negative first lens having a concave surface toward the image side; a positive second lens having a convex surface toward the image side; a negative third lens having a concave surface toward the image side; a positive biconvex fourth lens; a positive biconvex fifth lens; and a negative sixth lens having a concave surface toward the object side. Conditional Formula (1) related to the radius of curvature R3 of the surface of the second lens toward the object side and the focal length f of the entire lens system is satisfied: R3/f
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公开(公告)号：US20190094495A1
公开(公告)日：2019-03-28
申请号：US16131116
申请日：2018-09-14
申请人： FUJIFILM Corporation
发明人： Masaru AMANO , Masao MORI , Taro ASAMI , Kazuyoshi OKADA
CPC分类号： G02B9/64 , G02B27/0037 , G02B27/0062
摘要： The imaging lens includes at least one positive lens that satisfies predetermined conditional expressions (1) to (3) indicating conditions in which dispersion is relatively low and refractive index is high while having a negative rate of change of the refractive index. In a case where a lens that satisfies a conditional expression (4) meaning a low dispersion material is included, the lens that satisfies the conditional expression (4) satisfies a predetermined conditional expression (5).
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公开(公告)号：US20170269327A1
公开(公告)日：2017-09-21
申请号：US15442771
申请日：2017-02-27
申请人： FUJIFILM Corporation
发明人： Masao MORI
CPC分类号： G02B9/64 , G02B9/62 , G02B13/0045 , G02B13/006 , G02B13/06
摘要： An imaging lens includes, in order from the object side to the image side: a first lens having a negative refractive power and a concave surface toward the image side; a positive second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface toward the image side; a fourth lens having a convex surface toward the image side; a fifth lens having a positive refractive power and a convex surface toward the image side; and a sixth lens having a negative refractive power and a concave surface toward the object side. Predetermined conditional formulae related to first lens, the second lens, and the third lens are satisfied.
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公开(公告)号：US20150316746A1
公开(公告)日：2015-11-05
申请号：US14800808
申请日：2015-07-16
申请人： FUJIFILM Corporation
发明人： Masao MORI , Ryoko OTOMO
IPC分类号： G02B13/00
CPC分类号： G02B13/004 , G02B9/34 , G02B13/04
摘要： An imaging lens is composed of a first lens having a negative meniscus shape with a convex surface on the object side, a negative second lens, a positive third lens, an aperture stop, a negative fourth lens, and a positive fifth lens disposed in order from the object side. The fourth and the fifth lens are cemented with an interface which is convex on the object side and has an aspherical shape. If the radius of curvature is taken as R9 and the focal length of the entire system is taken as f, the imaging lens satisfies a conditional expression given below: 1.0
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