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公开(公告)号：EP0990935B1
公开(公告)日：2006-03-01
申请号：EP99119245.1
申请日：1999-09-28
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公开(公告)号：EP4394475A1
公开(公告)日：2024-07-03
申请号：EP22916766.3
申请日：2022-12-28
发明人： LEE, Yongjae
摘要： According to one embodiment of the present disclosure, provided, in an electronic device, may be: a lens assembly comprising a plurality of lenses sequentially arranged along an optical axis direction from an object side to an image side; an optical member which is disposed closer to the object side than the lens assembly and is configured to reflect or refract external light incident in a direction crossing the optical axis so as to cause the external light to be incident on the lens assembly along the optical axis direction; and an image sensor. The electronic device may implement a telephoto lens with low chromatic aberration.
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3.发明公开Scanning optical system, optical scanning apparatus, and radiation image readout apparatus 审中-公开扫描光学系统，光学扫描设备和辐射图像读取设备
公开(公告)号：EP2876477A1
公开(公告)日：2015-05-27
申请号：EP14193973.6
申请日：2014-11-20
申请人： Fujifilm Corporation
发明人： Ishikawa, Hiromi , Ohta, Yasunori , Inoue, Tomoki
CPC分类号： G02B26/105 , G01T1/2014 , G02B9/56 , G02B13/0005 , G03B42/08
摘要： [Objective]
To obtain a scanning optical system capable of being configured to be compact and of sufficiently decreasing the beam diameter of light on a scanning target surface.
[Constitution]
A scanning optical system includes: a galvanometer mirror that reflects and deflects a light beam emitted from a light source with a mirror (4a), and an fθ lens that focuses the deflected light beam on a scanning target surface. The fθ lens is constituted by a first lens (L1), which is a spherical lens having a positive refractive power, a second lens (L2), which is a spherical lens having a negative refractive power, a third lens (L3), which is a spherical lens having a negative refractive power, and a fourth lens (L4), which is a spherical lens having a positive refractive power, provided in this order from the side of the galvanometer mirror. The scanning optical system satisfies Conditional Formula (1) below: 2.529 ≤ f / f 1 ≤ 8.437
wherein f is the focal length of the entire fθ lens, and f1 is the focal length of the first lens (L1).摘要翻译： [本发明的目的]为了获得能够构造成紧凑并且能够充分减小扫描目标表面上的光束直径的扫描光学系统。 [构成]一种扫描光学系统包括：检流计反射镜，其用反射镜（4a）反射和偏转从光源发射的光束;以及fθ透镜，其将被偏转的光束聚焦在扫描目标表面上。 fθ透镜由具有正光焦度的球面透镜即第一透镜（L1），具有负光焦度的球面透镜即第二透镜（L2），第三透镜（L3）构成，该第三透镜 是具有负折射光焦度的球面透镜，并且从检流计反射镜侧依次设置有作为具有正折射光焦度的球面透镜的第四透镜（L4）。 扫描光学系统满足下面的条件公式（1）：2.529≤f/f1≤8.437其中，f是整个fθ透镜的焦距，并且f1是第一透镜（L1）的焦距。
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4.发明公开Scanning optical system, optical scanning apparatus, and radiation image readout apparatus 审中-公开光学系统，Optisches Abtastvorrichtung，和Strahlungsbildauslesevorrichtung
公开(公告)号：EP2811329A1
公开(公告)日：2014-12-10
申请号：EP14170868.5
申请日：2014-06-03
申请人： Fujifilm Corporation
发明人： Ishikawa, Hiromi , Ohta, Yasunori
CPC分类号： G01T1/2014 , G02B9/36 , G02B9/38 , G02B9/56 , G02B13/0005 , G02B26/105
摘要： [Objective]
To obtain a scanning optical system capable of being configured to be compact and of sufficiently decreasing the beam diameter of light on a scanning target surface.
[Constitution]
A scanning optical system includes: a galvanometer mirror having a mirror (4a) that reflects and deflects a light beam emitted from a light source, and an fθ (L1 through L4) lens that focuses the deflected light beam on a scanning target surface. The fθ lens (L1 through L4) is constituted by a first lens (L1), which is a spherical lens having a positive refractive power, a second lens (L2), which is a spherical lens having a negative refractive power, a third lens (L3), which is a spherical lens, and a fourth lens (L4), which is a spherical lens having a positive refractive power, provided in this order from the side of the galvanometer mirror. The scanning optical system satisfies Conditional Formula (1) below: - 7.300 ≤ f / f 3 ≤ 0.509 wherein f is the focal length of the entire fθ lens (L1 through L4), and f3 is the focal length of the third lens (L3).摘要翻译： [目的]获得能够被配置为紧凑并足够地减小扫描目标表面上的光束直径的扫描光学系统。 [结构]扫描光学系统包括：电流计镜，其具有反射和偏转从光源发射的光束的反射镜（4a），以及将偏转的光束聚焦在扫描上的f（L1至L4）透镜 目标表面。 镜头（L1至L4）由作为具有正折光力的球面透镜的第一透镜（L1），具有负屈光力的球面透镜构成的第二透镜（L2），第三透镜 作为球面透镜的透镜（L3）和具有正折光力的球面透镜的第四透镜（L4），从电流计反射镜的这一侧开始。 扫描光学系统满足以下条件式（1）： - 7.300‰¤f / f ¢3‰¤0.509其中f是整个f¸透镜（L1至L4）的焦距，f3是 第三透镜（L3）。
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5.发明公开Lens for copying and image copying apparatus using the same 有权Kipierobjektiv und dessen Verwendung在einemBildkopiergerät
公开(公告)号：EP0990935A3
公开(公告)日：2001-10-31
申请号：EP99119245.1
申请日：1999-09-28
摘要： A lens for copying includes a lens for copying disposed symmetrically about a stop. The lens for copying includes, in succession from the object side, a positive first lens (1) having convex lens surfaces, a negative second lens (2) having concave lens surfaces, a stop (SP), a third lens (3) of the same shape as the second lens, and a fourth lens (4) of the same shape as the first lens. When the focal length of the entire system is defined as F and the focal length of the first lens is defined as f1 and the radius of curvature of the i-th lens surface is defined as ri and the thickness or air space of the i-th lens is defined as di and the refractive index of the material of the i-th lens is defined as ni, the lens for copying satisfies0.25 ≤ f1/F ≤ 0.35, 1.35 ≤ r2/r3 ≤ 1.45,-0.55 ≤ r1/r2 ≤ -0.45, 2.2 ≤ 3×d4/(d1+d2+d3) ≤ 2.8, and0.08 ≤ n1-n2 ≤ 0.11. This design gives a wide angle of view with a maximum half angle of view of the order of 23°.
摘要翻译： 用于复印的镜头包括围绕停止件对称设置的复印镜。 用于复制的透镜包括从物体侧连续的具有凸透镜表面的正第一透镜，具有凹透镜表面的负第二透镜，止挡件，与第二透镜相同形状的第三透镜，以及第四透镜 具有与第一透镜相同的形状。 当整个系统的焦距被定义为F，并且第一透镜的焦距被定义为f1，并且第i个透镜表面的曲率半径被定义为ri，i- 将第i个透镜定义为di，将第i个透镜的材料的折射率定义为ni，复制用透镜满足0.25≤f1/F≤0.35,1.35≤r2/r3≤1.45，-0.55≤r1/ r2≤0.45,2.2≤3xd4/（d1 + d2 + d3）≤2.8，并且0.08≤n1-n2≤0.11
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