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    IMAGING OPTICAL SYSTEM AND IMAGING APPARATUS
    82.
    发明公开
    IMAGING OPTICAL SYSTEM AND IMAGING APPARATUS 审中-公开

    公开(公告)号：EP3465314A1

    公开(公告)日：2019-04-10

    申请号：EP17730957.2

    申请日：2017-05-31

    Applicant: Ricoh Company Ltd.

    Inventor： OHASHI, Kazuyasu

    IPC: G02B9/60 ,  G02B9/62 ,  G02B13/00 ,  G02B13/04

    Abstract: An imaging optical system includes a first lens having a concave image side surface and a negative refractive power; a second lens having a convex object side surface and a positive refractive index; a third lens having a concave object side surface and a negative refractive power; a fourth lens having a convex image side surface and a positive refractive power; and a fifth lens having a convex object side surface and a positive refractive power in the order from the object side to the image side, optionally includes a lens on the image side of the fifth lens. The imaging optical system satisfies conditional expressions [1] 1.94

    WIDE ANGLE LENS
    85.
    发明公开
    WIDE ANGLE LENS 审中-公开
    广角镜头

    公开(公告)号：EP3301492A1

    公开(公告)日：2018-04-04

    申请号：EP17193634.7

    申请日：2017-09-28

    Applicant: Nidec Sankyo Corporation

    Inventor： KANZAKI, Yosuke

    IPC: G02B7/02 ,  G02B9/60 ,  G02B13/06

    CPC classification number: G02B7/028 ,  G02B9/60 ,  G02B9/62 ,  G02B13/06

    Abstract: A wide angle lens includes a first to a third lenses, a diaphragm, a fourth to a sixth lenses disposed in order from an object side. The fourth lens is a glass lens, and the second lens, the third lens, the fifth lens and the sixth lens are plastic lenses. The fifth lens and the sixth lens constitute a cemented lens. When a center curvature radius on an image side face of the fourth lens is "R42" and a focal length of an entire wide angle lens is "f0", the center curvature radius "R42" and the focal length "f0" satisfy the conditional expression: 2×f0 ≦ |R42| ≦ 5×f0. When a center curvature radius on an object side face of the fourth lens is "R41", the center curvature radii "R41" and "R42" may satisfy the conditional expression: |R41| ≧ |R42|.

    Abstract translation: 广角镜头包括从物侧依次设置的第一到第三透镜，光圈，第四到第六透镜。 第四透镜是玻璃透镜，并且第二透镜，第三透镜​​，第五透镜和第六透镜是塑料透镜。 第五透镜和第六透镜构成胶合透镜。 当第四透镜的图像侧面上的中心曲率半径是“R42”并且整个广角透镜的焦距是“f0”时，中心曲率半径“R42”和焦距“f0”满足条件 表达式：2×f0≦| R42 | ≦5×f0。 当第四透镜的物体侧面上的中心曲率半径是“R41”时，中心曲率半径“R41”和“R42”可以满足条件表达式：| R41 | ≧| R42 |。

    WIDE ANGLE LENS
    86.
    发明公开
    WIDE ANGLE LENS 审中-公开
    广角镜头

    公开(公告)号：EP3226053A1

    公开(公告)日：2017-10-04

    申请号：EP17163291.2

    申请日：2017-03-28

    Applicant: Nidec Sankyo Corporation

    Inventor： KOMIYAMA, Tadashi

    IPC: G02B9/60 ,  G02B13/00 ,  G02B13/06

    CPC classification number: G02B13/06 ,  G02B9/60 ,  G02B13/0045 ,  G02B13/006

    Abstract: A wide angle lens (100) comprises a first lens (11), a second lens (12), a third lens (13), a diaphragm (17), a fourth lens (14) and a fifth lens (15) which are arranged in order from an object side to an image side. The first lens (11) is a negative meniscus lens, the second lens (12) is a negative lens in which at least one of lens surfaces is an aspherical surface, the third lens (13) is a positive meniscus lens or a biconvex lens in which at least one of lens surfaces is an aspherical surface, the fourth lens (14) is a negative meniscus lens or a biconcave lens, and the fifth lens (15) is a biconvex lens. The fourth lens (14) and the fifth lens (15) are plastic lenses which constitute a cemented lens (16). When a refractive index of the fourth lens (14) is "n4", the condition "n4 > 1.6" is satisfied and, when a center radius of curvature of a cemented surface of the cemented lens (16) is "R45" and an effective focal length of the entire lens system is "f0", the condition "0.5

    Abstract translation: 广角镜头（100）包括第一透镜（11），第二透镜（12），第三透镜​​（13），光圈（17），第四透镜（14）和第五透镜（15） 从物侧到像侧依次排列。 第一透镜（11）是负弯月透镜，第二透镜（12）是其中至少一个透镜表面是非球面的负透镜，第三透镜​​（13）是正弯月形透镜或双凸透镜 其中至少一个透镜表面是非球面，第四透镜（14）是负弯月形透镜或双凹透镜，并且第五透镜（15）是双凸透镜。 第四透镜（14）和第五透镜（15）是构成胶合透镜（16）的塑料透镜。 当第四透镜（14）的折射率为“n4”时，满足条件“n4> 1.6”，并且当接合透镜（16）的接合表面的中心曲率半径为“R45”并且 整个透镜系统的有效焦距为“f0”，满足条件“0.5 <| R45 / f0 | <0.8”。

    SMALL FORM FACTOR TELEPHOTO CAMERA
    87.
    发明公开
    SMALL FORM FACTOR TELEPHOTO CAMERA 审中-公开
    TELEFOTOKAMERA MIT KLEINEM FORMFAKTOR

    公开(公告)号：EP3063580A4

    公开(公告)日：2017-07-05

    申请号：EP14857387

    申请日：2014-10-17

    Applicant: APPLE INC

    Inventor： MERCADO ROMEO I

    IPC: G02B13/02 ,  G02B9/34 ,  G02B9/60 ,  G02B13/00

    CPC classification number: G02B13/0045 ,  G02B9/34 ,  G02B9/60 ,  G02B13/004 ,  G02B13/02 ,  H04N5/225 ,  H04N5/2253 ,  H04N5/2254 ,  H04N5/232 ,  H04N5/23212

    Abstract: A compact telephoto lens system that may be used in a small form factor cameras. The lens system may include five lens elements with refractive power. Alternatively, the lens system may include four lens elements with refractive power. At least one of the object side and image side surfaces of at least one of the lens elements is aspheric. Total track length (TTL) of the lens system may be 6.0 mm or less. Focal length f of the lens system may be at or about 7.0 mm (for example, within a range of 6.5-7.5 mm). Lens elements are selected and configured so that the telephoto ratio (TTL/f) satisfies the relation 0.74

    Abstract translation: 小型长焦镜头系统，可用于小型相机。 该透镜系统可以包括五个具有屈光力的透镜元件。 或者，该透镜系统可以包括具有折光力的四个透镜元件。 至少一个透镜元件的物体侧和像侧表面中的至少一个是非球面。 镜头系统的总轨道长度（TTL）可能为6.0毫米或更小。 透镜系统的焦距f可以是或约为7.0mm（例如，在6.5-7.5mm的范围内）。 选择和配置镜头元件，使远摄距离（TTL / f）满足0.74

    FOLDED CAMERA LENS SYSTEMS
    89.
    发明公开
    FOLDED CAMERA LENS SYSTEMS 审中-公开
    透镜系统FOR折叠相机

    公开(公告)号：EP3100093A1

    公开(公告)日：2016-12-07

    申请号：EP15715880.9

    申请日：2015-02-13

    Applicant: Apple Inc.

    Inventor： MERCADO, Romeo I.

    IPC: G02B13/00 ,  G02B9/60

    CPC classification number: G03B13/32 ,  G02B9/60 ,  G02B13/002 ,  G02B13/0045 ,  G02B13/0065 ,  H04N5/2254

    Abstract: A folded lens system may include multiple lenses with refractive power and a light path folding element. Light entering the camera through lens(es) on a first optical path or axis is refracted to the folding element, which changes direction of the light onto a second optical path or axis with lens(es) that refract the light to form an image plane at a photosensor. At least one of the object side and image side surfaces of at least one of the lens elements may be aspheric. Total track length (TTL) of the lens system may be 16.0 mm or less. The lens system may be configured so that the telephoto ration | TTL/f | is greater than 1.0. Materials, radii of curvature, shapes, sizes, spacing, and aspheric coefficients of the optical elements may be selected to achieve quality optical performance and high image resolution in a small form factor camera.

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