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    ENDOSCOPE IMAGE-ACQUISITION DEVICE
    2.
    发明申请
    ENDOSCOPE IMAGE-ACQUISITION DEVICE 审中-公开
    内窥镜图像采集装置

    公开(公告)号：US20160120397A1

    公开(公告)日：2016-05-05

    申请号：US14993649

    申请日：2016-01-12

    Applicant: OLYMPUS CORPORATION

    Inventor： Yasushi Namii ,  Hideyuki Nagaoka

    IPC: A61B1/05 ,  H04N7/18 ,  A61B1/00 ,  H04N5/232

    CPC classification number: A61B1/051 ,  A61B1/00096 ,  A61B1/00193 ,  G02B23/2415 ,  G03B17/17 ,  G03B35/08 ,  G03B37/005 ,  H04N5/23212 ,  H04N7/183

    Abstract: The present invention achieves a reduction in the size of a device by acquiring a plurality of images in different position without shifting microlenses (MLs) of an one imaging element while suppressing shading and crosstalk. Provided is an endoscope image-acquisition device including: an objective optical system that forms two subject images in parallel; and an imaging element that has a plurality of MLs arrayed at an entrance side from the objective optical system and in which pixels are allocated to the respective MLs, wherein the centers of light-sensitive portions at the pixels are displaced with respect to the optical axes of the MLs such that displacements therebetween are gradually increased from the center portion of the imaging element toward peripheral portions thereof; the position of an exit pupil of the objective optical system is closer to an object than an imaging position of the objective optical system is; and conditional expression (1) is satisfied. 0.5≦(θH−θD)/α≦3  (1) Here, α is an angle formed by a chief ray at a horizontal maximum image height and an optical axis, θH is a chief-ray correction amount (angle) for the ML at the horizontal maximum image height (H) from the center portion of the imaging element, and θD is a chief-ray correction amount (angle) for the ML at a distance D from the center portion of the imaging element. The distance D is the distance between the center portion of the imaging element and the point of intersection between α line drawn toward the center portion of the imaging element at a degrees from the position of the exit pupil of the objective optical system and the imaging element.

    Abstract translation: 本发明通过在不影响一个成像元件的微透镜（ML））的同时获取多个图像而同时抑制阴影和串扰来实现装置尺寸的减小。 本发明提供一种内窥镜图像获取装置，其包括：并行地形成两个被摄体图像的物镜光学系统; 以及成像元件，其具有排列在物镜光学系统的入口侧的多个ML，并且其中像素分配给各个ML，其中像素处的感光部分的中心相对于光轴移位 使得它们之间的位移从成像元件的中心部分朝向其周边部分逐渐增加; 物镜光学系统的出射光瞳的位置比目标光学系统的成像位置更靠近物体; 并满足条件表达式（1）。 0.5＆nlE;（＆thetas; H-＆thetas; D）/α＆nlE; 3（1）这里，α是由水平最大像高和光轴上的主光线形成的角度，H是主光线校正 在成像元件的中心部分的水平最大图像高度（H）处的ML的数量（角度）和＆D; D是距离中心部分的距离D处的ML的主光线校正量（角度） 的成像元件。 距离D是成像元件的中心部分与成像元件的中心部分相对于物镜光学系统的出射光瞳的位置成像的α线与摄像元件的相交点之间的距离 。

    Observation apparatus
    3.
    发明授权
    Observation apparatus 有权
    观察装置

    公开(公告)号：US09581803B2

    公开(公告)日：2017-02-28

    申请号：US15205752

    申请日：2016-07-08

    Applicant: OLYMPUS CORPORATION

    Inventor： Hideyuki Nagaoka

    IPC: H04N5/00 ,  G02B23/24 ,  H04N5/225 ,  H04N5/232 ,  H04N9/04

    CPC classification number: G02B23/2461 ,  A61B1/00009 ,  A61B1/045 ,  G02B23/2469 ,  G02B23/2476 ,  G02B23/2484 ,  H04N5/2256 ,  H04N5/232 ,  H04N9/04 ,  H04N9/045 ,  H04N9/735 ,  H04N2005/2255

    Abstract: An observation apparatus including: a light source unit that generates illumination light by using a plurality of solid-state illumination devices; an image-acquisition device that acquires an image of an object illuminated with the illumination light; an image processing unit that processes acquired image signals; and a control unit that controls the light source unit and/or the image processing unit. One of the illumination devices has a peak in a G channel, another one of the illumination devices has a peak in an R channel, and, when increasing and reducing the amount of the illumination light, the control unit performs control so as to satisfy ΔSr/ΔSg>1 and ΔSr/ΔSg

    Abstract translation: 一种观察装置，包括：光源单元，其通过使用多个固态照明装置产生照明光; 获取被照明光照射的物体的图像的图像获取装置; 处理所获取的图像信号的图像处理单元; 以及控制单元，其控制光源单元和/或图像处理单元。 一个照明装置在G通道中具有峰值，另一个照明装置在R通道中具有峰值，并且当增加和减少照明光量时，控制单元执行控制以满足ΔSr /ΔSg> 1和ΔSr/ΔSg<1，其中ΔSr和ΔSg分别是施加到R和G通道的系统增益的变化率。

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