Image fiber with reduced flare
    1.
    发明授权
    Image fiber with reduced flare 失效
    图像纤维减少耀斑

    公开(公告)号:US5608835A

    公开(公告)日:1997-03-04

    申请号:US281557

    申请日:1994-07-28

    摘要: An image fiber is provided with an image transmitting portion including a plurality of cores and a cladding surrounding the cores; a jacket layer higher in refractive index than the cladding, covering the periphery of the image transmitting portion; and a coating layer higher in refractive index than the cladding, covering the periphery of the jacket layer. The image fiber, integrally constructed in this way, allows light propagating through the cladding to be effectively eliminated, and thus fails to produce flare.

    摘要翻译: 图像光纤设置有包括多个芯的图像传输部分和围绕芯的包层; 覆盖图像传输部分的周边的折射率高于包层的护套层; 以及覆盖层的外周的折射率高于包层的涂层。 以这种方式整体构造的图像纤维允许有效消除通过包层传播的光,从而不能产生光晕。

    Image fiber and method of fabricating the same
    3.
    发明授权
    Image fiber and method of fabricating the same 失效
    图像纤维及其制造方法

    公开(公告)号:US6041154A

    公开(公告)日:2000-03-21

    申请号:US14165

    申请日:1998-01-27

    IPC分类号: G02B6/04 G02B6/06

    CPC分类号: G02B6/06 G02B6/02042

    摘要: An image fiber includes plural kinds of cores and a common cladding containing the cores, which are arrayed so that no similar cores are adjacent one another. A method of making the image fiber is that a plurality of optical fiber elements having cores of different diameters are arranged so that no similar cores are adjacent one another, and after being inserted in a jacket pipe, are heated at a high temperature to fuse the cladding portions of the optical fiber elements so that the whole is drawn down to a desired thickness.

    摘要翻译: 图像光纤包括多种芯和包含芯的公共包层,其被排列成使得没有相似的芯彼此相邻。 制造图像纤维的方法是具有不同直径的芯的多个光纤元件被布置成使得没有相似的芯彼此相邻,并且在插入套管中之后,在高温下加热以熔化 覆盖光纤元件的部分,使得整体被拉伸到期望的厚度。

    Image fiber
    5.
    发明授权
    Image fiber 失效
    图像纤维

    公开(公告)号:US5479550A

    公开(公告)日:1995-12-26

    申请号:US239529

    申请日:1994-05-09

    IPC分类号: C03B37/028 C03B37/15 G02B6/06

    摘要: An image fiber has a plurality of optical fibers with normalized frequencies different from one another, which is constructed so that a plurality of cores different in size and shape from one another are distributed at random in a cladding. The optical fibers include at least two kinds of optical fibers having propagation modes different in number. Thus, the image fiber is capable of suppressing cross talk to prevent the degradation of image quality.

    摘要翻译: 图像光纤具有多个具有归一化频率彼此不同的光纤,其被构造成使得尺寸和形状彼此不同的多个芯在包层中随机分布。 光纤包括具有数量不同的传播模式的至少两种光纤。 因此,图像光纤能够抑制串扰以防止图像质量的劣化。

    TV system for endoscopes
    6.
    发明授权
    TV system for endoscopes 失效
    内窥镜电视系统

    公开(公告)号:US5392067A

    公开(公告)日:1995-02-21

    申请号:US962635

    申请日:1992-10-16

    摘要: A TV system for endoscopes is configured to connect to a fiber scope using an image guide fiber bundle and a rigid endoscope using a relay lens system. An image is formed by either the fiber scope or the rigid endoscope on a TV monitor. The camera control unit controls a level of the color difference signal in accordance with spatial frequency components contained in the TV signal. A variable switching unit is provided which allows the electrical circuits of the camera control unit to function selectively in accordance with the characteristics of the image transmission system.

    摘要翻译: 用于内窥镜的电视系统被配置为使用图像引导光纤束和使用中继透镜系统的刚性内窥镜连接到光纤示范器。 图像由电视监视器上的光纤示波器或刚性内窥镜形成。 照相机控制单元根据TV信号中包含的空间频率分量来控制色差信号的电平。 提供了可变开关单元,其允许相机控制单元的电路根据图像传输系统的特性选择性地起作用。

    Illumination optical system
    8.
    发明授权
    Illumination optical system 失效
    照明光学系统

    公开(公告)号:US6053862A

    公开(公告)日:2000-04-25

    申请号:US124006

    申请日:1998-07-29

    申请人: Katsuya Ono

    发明人: Katsuya Ono

    IPC分类号: G02B23/26 A61B1/00 A61B1/07

    CPC分类号: A61B1/07 A61B1/00096

    摘要: An illumination optical system has a diffusion member including a number of nearly spherical members which are diminutive in size and transparent and a transparent medium whose refractive index is higher than that of air and different from that of the nearly spherical members and which holds the nearly spherical members, on the exit end face of a light conducting device for introducing illumination light. In this way, a visual field can be efficiently illuminated.

    摘要翻译: 照明光学系统具有扩散构件,该扩散构件包括尺寸小且透明的多个近似球形的构件,并且透明介质的折射率高于空气的折射率并且与几乎球形构件的折射率不同,并且保持近似球面 构件,用于引入照明光的导光装置的出射端面。 以这种方式,可以有效地照亮视野。

    Imaging optical system
    9.
    发明授权
    Imaging optical system 有权
    成像光学系统

    公开(公告)号:US06288767B1

    公开(公告)日:2001-09-11

    申请号:US09698066

    申请日:2000-10-30

    IPC分类号: G02F113

    摘要: An imaging optical system includes a liquid crystal lens including a first body formed of a substantially transparent birefringent liquid crystal member, a second body formed of a substantially transparent birefringent liquid crystal member, and two pairs of electrodes for adding an electric field or a magnetic field onto the first body and the second body. A rear face of the first body is aligned perpendicular to a front face of the second body, the first body and the second body have substantially symmetrical shape against a plane perpendicular to an optical axis and a plurality of optical elements are arranged front and after the liquid crystal lens. The liquid crystal lens has two distinct focal points. The system automatically switches between these focal points, based on the position of the lens with respect to the object being observed.

    摘要翻译: 成像光学系统包括:液晶透镜,包括由基本上透明的双折射液晶部件形成的第一主体,由基本上透明的双折射液晶部件形成的第二主体和用于添加电场或磁场的两对电极 到第一个身体和第二个身体。 第一主体的后表面垂直于第二主体的正面对齐,第一主体和第二主体相对于垂直于光轴的平面具有基本上对称的形状,并且多个光学元件被布置在前面和后面 液晶镜头。 液晶透镜有两个不同的焦点。 该系统根据透镜相对于被观察物体的位置自动地在这些焦点之间切换。

    Imaging optical system
    10.
    发明授权
    Imaging optical system 失效
    成像光学系统

    公开(公告)号:US6166784A

    公开(公告)日:2000-12-26

    申请号:US871763

    申请日:1997-06-09

    摘要: An imaging optical system is disclosed. The system comprises a liquid crystal lens including a first body consisting of a substantially transparent birefringent liquid crystal member, a second body consisting of a substantially transparent birefringent liquid crystal member, and two pairs of electrodes for adding an electric field or a magnetic field onto the first body and the second body. A rear face of the first body is aligned perpendicular to a front face of the second body, the first body and the second body have substantially symmetrical shape against a plane perpendicular to an optical axis and plurality of optical elements are arranged front and after the liquid crystal lens.

    摘要翻译: 公开了一种成像光学系统。 该系统包括液晶透镜,该液晶透镜包括由基本上透明的双折射液晶元件构成的第一主体,由基本透明的双折射液晶元件构成的第二主体和用于将电场或磁场添加到 第一体和第二体。 第一主体的后表面垂直于第二主体的正面对准,第一主体和第二主体相对于垂直于光轴的平面具有基本上对称的形状,并且在液体之前和之后布置多个光学元件 水晶镜头。