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    • 5. 发明授权
    • Imaging Device
    • 成像设备
    • US07236304B2
    • 2007-06-26
    • US10578226
    • 2004-11-04
    • Hiroaki OkayamaMichihiro YamagataKazutake BokuYasuhiro TanakaKenichi HayashiYoshimasa FushimiShigeki MurataTakayuki Hayashi
    • Hiroaki OkayamaMichihiro YamagataKazutake BokuYasuhiro TanakaKenichi HayashiYoshimasa FushimiShigeki MurataTakayuki Hayashi
    • G02B27/10G02B13/16H04N5/225H04N5/222
    • G02B3/0056G02B27/0018H04N5/2254
    • There is provided an imaging device which is small in light loss, is operable to suppress an occurrence of a stray light, and is operable to provide an image with a high quality as far as a periphery thereof. The imaging device operable to output an image of an object as an electrical image signal, comprising: a solid-state imaging sensor including pixels which are two dimensionally arranged on a first flat surface and each of which has a photo-electric conversion function; and a lens array including micro lenses two dimensionally arranged on a second flat surface separately provided so as to be parallel to the first flat surface, in which the solid-state imaging sensor includes an imaging area of unit including a plurality of pixels, and each of the micro lenses forms an optical image of the object on a corresponding imaging area of unit and satisfies a predetermined condition, arctan(L/f)≦θ, for a pixel, from among pixels included in an imaging area of unit corresponding to each micro lens, positioned farthest from an optical axis of a corresponding micro lens. Here, θ is a maximum angle of an incident light capable of entering a pixel, f is a focal length of a micro lens, and L is a diameter of a circle circumscribing an imaging area of unit corresponding to one of the micro lenses.
    • 提供了一种光损失小的成像装置,可操作地抑制杂散光的发生,并且可操作以提供具有高质量的图像至其周边。 该成像装置可操作以输出物体的图像作为电图像信号,包括:固态成像传感器,其包括二维排列在第一平面上并具有光电转换功能的像素; 以及透镜阵列,其包括二维布置在分别设置成平行于所述第一平坦表面的第二平坦表面上的微透镜,其中所述固态成像传感器包括包括多个像素的单元的成像区域,并且每个 的微透镜在单元的对应成像区域上形成物体的光学图像,并且满足预定条件,对于像素,从包括在对应于单元的单元的成像区域中的像素中的像素的arctan(L / f)<= 每个微透镜被定位成最远离相应微透镜的光轴。 这里,θ是能够进入像素的入射光的最大角度,f是微透镜的焦距,L是围绕与微透镜之一对应的单位的成像区域的圆的直径。
    • 8. 发明申请
    • Imaging device
    • 成像设备
    • US20070091197A1
    • 2007-04-26
    • US10578226
    • 2004-11-04
    • Hiroaki OkayamaMichihiro YamagataKazutake BokuYasuhiro TanakaKenichi HayashiYoshima FushimiShigeki MurataTakayuki Hayashi
    • Hiroaki OkayamaMichihiro YamagataKazutake BokuYasuhiro TanakaKenichi HayashiYoshima FushimiShigeki MurataTakayuki Hayashi
    • H04N5/225
    • G02B3/0056G02B27/0018H04N5/2254
    • There is provided an imaging device which is small in light loss, is operable to suppress an occurrence of a stray light, and is operable to provide an image with a high quality as far as a periphery thereof. The imaging device operable to output an image of an object as an electrical image signal, comprising: a solid-state imaging sensor including pixels which are two dimensionally arranged on a first flat surface and each of which has a photo-electric conversion function; and a lens array including micro lenses two dimensionally arranged on a second flat surface separately provided so as to be parallel to the first flat surface, in which the solid-state imaging sensor includes an imaging area of unit including a plurality of pixels, and each of the micro lenses forms an optical image of the object on a corresponding imaging area of unit and satisfies a predetermined condition, arctan(L/f)≦θ, for a pixel, from among pixels included in an imaging area of unit corresponding to each micro lens, positioned farthest from an optical axis of a corresponding micro lens. Here, θ is a maximum angle of an incident light capable of entering a pixel, f is a focal length of a micro lens, and L is a diameter of a circle circumscribing an imaging area of unit corresponding to one of the micro lenses.
    • 提供了一种光损失小的成像装置,可操作地抑制杂散光的发生,并且可操作以提供具有高质量的图像至其周边。 该成像装置可操作以输出物体的图像作为电图像信号,包括:固态成像传感器,其包括二维排列在第一平面上并具有光电转换功能的像素; 以及透镜阵列,其包括二维布置在分别设置成平行于所述第一平坦表面的第二平坦表面上的微透镜,其中所述固态成像传感器包括包括多个像素的单元的成像区域,并且每个 的微透镜在单元的对应成像区域上形成物体的光学图像,并且满足预定条件,对于像素,从包括在对应于单元的单元的成像区域中的像素中的像素的arctan(L / f)<= 每个微透镜被定位成最远离相应微透镜的光轴。 这里,θ是能够进入像素的入射光的最大角度,f是微透镜的焦距,L是围绕与微透镜之一对应的单位的成像区域的圆的直径。
    • 9. 发明授权
    • Solid-state image pickup device, imaging device, and dispersing element
    • 固态图像拾取装置,成像装置和分散元件
    • US08792027B2
    • 2014-07-29
    • US12985353
    • 2011-01-06
    • Michihiro YamagataYasuhiro TanakaKazuhiro YamadaKazuyoshi ItohYasuyuki Ozeki
    • Michihiro YamagataYasuhiro TanakaKazuhiro YamadaKazuyoshi ItohYasuyuki Ozeki
    • H04N9/04H04N5/225H01L27/00H04N9/097
    • H01L27/14629G02B5/18H01L27/14627
    • A solid-state image pickup device capable of taking more light into light receiving regions is provided. The solid-state image pickup device of the present invention includes: a photoelectric conversion unit having a plurality of light receiving regions that are two-dimensionally arrayed, the photoelectric conversion unit for photoelectrically converting light incident on each of the light receiving regions, and outputting an electric signal according to the intensity of the incident light; a lens unit comprising a plurality of converging lenses provided on an upper layer of the photoelectric conversion unit, each of the converging lens being provided corresponding to a set of continuous first to third light receiving regions; and a dispersing element provided between the photoelectric conversion unit and the lens unit, the dispersing element being formed of a medium whose refractive index varies periodically, and diffracting beams of a first wavelength band and of a third wavelength band, having been transmitted through the converging lens, and directing the beams onto the first light receiving region and the third light receiving region, and transmitting, without diffracting, a beam of a second wavelength band, having been transmitted through the converging lens, and directing the beam onto the second light receiving region.
    • 提供了能够将更多的光吸收到光接收区域的固体摄像装置。 本发明的固态摄像装置具有:具有二维排列的多个受光区域的光电转换单元,对各受光区域入射的光进行光电转换的光电转换单元,并输出 根据入射光强度的电信号; 透镜单元,包括设置在所述光电转换单元的上层上的多个会聚透镜,所述会聚透镜对应于一组连续的第一至第三光接收区域而设置; 以及设置在所述光电转换单元和所述透镜单元之间的分散元件,所述分散元件由折射率周期性变化的介质形成,并且衍射已经通过会聚的第一波长带和第三波长带的波束 并且将光束引导到第一光接收区域和第三光接收区域上,并且在不衍射的情况下传输已经透过会聚透镜的第二波长带的光束,并将光束引导到第二光接收 地区。
    • 10. 发明授权
    • Objective lens element and optical pickup device
    • 物镜和光学拾取装置
    • US08767518B2
    • 2014-07-01
    • US13248038
    • 2011-09-29
    • Katsuhiko HayashiYasuhiro TanakaMichihiro YamagataFumitomo Yamasaki
    • Katsuhiko HayashiYasuhiro TanakaMichihiro YamagataFumitomo Yamasaki
    • G11B7/12
    • G11B7/1353G11B7/1367G11B7/1374G11B7/13922G11B2007/0006
    • An objective lens element that can suppress occurrence of an aberration is disclosed. Sawtooth-like diffraction structures having different height and cycles (pitches) are provided on an inner part R21 and an outer part R22, respectively. A curved surface M211 extending at an intermediate level of recesses and projections of the sawtooth-like diffraction structure provided on the inner part R21, and a curved surface M212 extending at an intermediate level of recesses and projections of the sawtooth-like diffraction structure provided on the outer part R22 are smoothly connected to each other. Even when wavelength of the light source and/or the environmental temperature change, a phase shift does not occur between the inner part R21 and the outer part R22, and a decrease in diffraction efficiency and occurrence of an aberration can be suppressed.
    • 公开了能够抑制像差的发生的物镜元件。 分别具有不同高度和周期(间距)的锯齿状衍射结构分别设置在内部部分R21和外部部分R22上。 在内部部件R21上设置的锯齿状衍射结构的凹部和突起的中间水平面延伸的曲面M211,以及设置在上述锯齿状衍射结构的中间水平的锯齿状衍射结构的中间水平面的弯曲面M212 外部部件R22彼此平滑地连接。 即使在光源的波长和/或环境温度发生变化的情况下,内部部件R21和外部部件R22之间也不会发生相位偏移,并且可以抑制衍射效率的降低和像差的发生。