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    DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL SYSTEM HAVING THE SAME
    61.
    发明申请
    DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL SYSTEM HAVING THE SAME 失效
    差分光学元件和具有该光学元件的光学系统

    公开(公告)号：US20080055727A1

    公开(公告)日：2008-03-06

    申请号：US11847003

    申请日：2007-08-29

    申请人： Kazutaka Inoguchi

    发明人： Kazutaka Inoguchi

    IPC分类号： G02B5/18

    CPC分类号： G02B27/0037 ,  G02B5/1895 ,  G02B27/4211 ,  G02B27/4277 ,  G02B27/4288

    摘要： A diffractive optical element includes a plurality of layered diffraction gratings which includes two diffraction gratings made of materials having different dispersive powers. The plurality of diffraction gratings includes a first diffraction grating having a plurality of grating portions provided on a first base surface, and a second diffraction grating having a plurality of grating portions which are provided on a second base surface. In the second diffraction grating, a height of the grating portion of the central circular zone from the second base surface is greater than a height of the grating portion of the peripheral circular zone from the second base surface.

    摘要翻译： 衍射光学元件包括多个分层衍射光栅，其包括由具有不同色散功率的材料制成的两个衍射光栅。 多个衍射光栅包括具有设置在第一基面上的多个光栅部分的第一衍射光栅以及设置在第二基面上的多个光栅部分的第二衍射光栅。 在第二衍射光栅中，中心圆形区域与第二基面的光栅部分的高度大于圆周区域的光栅部分与第二基面的高度。

    DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL SYSTEM INCLUDING THE SAME
    62.
    发明申请
    DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL SYSTEM INCLUDING THE SAME 有权
    衍射光学元件和光学系统，包括它们

    公开(公告)号：US20080043335A1

    公开(公告)日：2008-02-21

    申请号：US11874046

    申请日：2007-10-17

    申请人： Takehiko Nakai

    发明人： Takehiko Nakai

    IPC分类号： G02B5/18

    CPC分类号： G02B5/1895 ,  G02B5/1814 ,  G02B5/1866 ,  G02B27/0037 ,  G02B27/42 ,  G02B27/4211 ,  G02B27/4277

    摘要： A diffractive optical element includes a plurality of diffraction gratings. A diffraction grating within the plurality of diffraction gratings includes a plurality of grating parts having a curved grating surface and grating tips which connect to define a curved envelope face. The grating surface has a radius of curvature larger than a radius of curvature of the envelope face. In addition, two diffraction gratings within the plurality of diffraction gratings are composed of different materials having different dispersions. Therefore, even when the radius of curvature of the envelope face is small, the degradation of the diffraction efficiency is suppressed.

    摘要翻译： 衍射光学元件包括多个衍射光栅。 多个衍射光栅内的衍射光栅包括具有弯曲光栅表面的多个光栅部分和连接以限定弯曲包络面的光栅尖端。 光栅表面的曲率半径大于信封面的曲率半径。 此外，多个衍射光栅内的两个衍射光栅由具有不同分散度的不同材料组成。 因此，即使包络面的曲率半径小，也能够抑制衍射效率的劣化。

    Diffractive element, method of manufacturing the same, optical pickup device, and optical disc apparatus
    64.
    发明申请
    Diffractive element, method of manufacturing the same, optical pickup device, and optical disc apparatus 失效
    衍射元件及其制造方法，光拾取装置和光盘装置

    公开(公告)号：US20060176559A1

    公开(公告)日：2006-08-10

    申请号：US11344558

    申请日：2006-02-01

    申请人： Takatoshi Minoda ,  Noriaki Seki ,  Eizo Ono

    发明人： Takatoshi Minoda ,  Noriaki Seki ,  Eizo Ono

    IPC分类号： G02B27/42 ,  G11B11/00 ,  G02B5/18

    CPC分类号： G02B27/42 ,  G02B27/4238 ,  G02B27/4261 ,  G02B27/4277 ,  G02B27/4294 ,  G11B7/1275 ,  G11B7/1353 ,  G11B2007/0006

    摘要： There is provided a diffractive element including a first member 2, which includes a first resin 2a and has a predetermined refractive index, and a second member 3, which has the same refractive index as the first member 2 having the predetermined refractive index in one wavelength of light and has a refractive index different from the first member 2 having the predetermined refractive index in the other wavelength of light. The first member 2 and the second member 3 are alternately arranged within an incidence plane of the two wavelengths of light, thereby constituting a diffraction grating. The second member 3 includes a second resin 3a to dissolve an organic matter 5 having optical absorption in a predetermined wavelength range at a molecular level, whereby the refractive index of the second member 3 is formed.

    摘要翻译： 提供了一种衍射元件，其包括第一构件2，第一构件2包括具有预定折射率的第一树脂2a和与第一构件2具有预定折射率的折射率相同的折射率的第二构件3 光的波长，并且在另一波长的光中具有与具有预定折射率的第一构件2不同的折射率。 第一构件2和第二构件3交替地布置在两个波长的光的入射平面内，从而构成衍射光栅。 第二构件3包括第二树脂3a，以在分子水平上溶解在预定波长范围内具有光吸收的有机物质5，从而形成第二构件3的折射率。

    Apparatus for shaping a light beam
    65.
    发明授权
    Apparatus for shaping a light beam 有权
    光束成形装置

    公开(公告)号：US07085062B2

    公开(公告)日：2006-08-01

    申请号：US10864815

    申请日：2004-06-10

    申请人： Dirk Hauschild

    发明人： Dirk Hauschild

    IPC分类号： G02B27/10 ,  G02B27/42 ,  G02B5/18

    CPC分类号： G02B27/0944 ,  G02B27/4277

    摘要： The invention relates to an apparatus for shaping a light beam, having at least two optically functional boundary surfaces that are arranged one behind another in the propagation direction (z) of the light beam to be shaped, such that the light beam can pass through the at least two optically functional boundary surfaces one after another, and two groups of refractive or diffractive imaging elements that are arranged on at least one of the optically functional boundary surfaces, at least two of the imaging elements having different properties within at least one of the groups.

    摘要翻译： 本发明涉及一种用于成形光束的装置，其具有至少两个光学功能边界表面，所述光学功能边界表面在待成形光束的传播方向（z）上一个接一个布置，使得光束可以穿过 至少两个光学功能边界表面以及两组折射或衍射成像元件，其布置在至少一个光学功能边界表面上，至少两个成像元件在至少一个光学功能边界表面内具有不同的性质 团体

    Light diffraction method and diffraction device, diffraction grating used for them, and position encoder device
    66.
    发明申请
    Light diffraction method and diffraction device, diffraction grating used for them, and position encoder device 失效
    光衍射法和衍射装置，用于它们的衍射光栅和位置编码器装置

    公开(公告)号：US20060152808A1

    公开(公告)日：2006-07-13

    申请号：US10561489

    申请日：2004-07-01

    申请人： Hideki Miyazaki ,  Hiroshi Miyazaki ,  Kenjiro Miyano

    发明人： Hideki Miyazaki ,  Hiroshi Miyazaki ,  Kenjiro Miyano

    IPC分类号： G02B5/18

    CPC分类号： G02B27/4255 ,  G02B5/1828 ,  G02B26/0808 ,  G02B27/4277

    摘要： The present invention proposes a novel principle of blazing that is effective even in the resonance domain. In the invention, light (51) is made incident on a diffraction grating so that specular resonance can occur in two or more light scattering units including, for example, bispheres (11a, 21a; 12a, 22a), and by the specular resonance, a fraction of diffracted light 52 that is diffracted by the first layer (1) and the second layer (2) is selectively enhanced. According to the invention, it also becomes possible to tune a blazing condition by a control signal from outside.

    摘要翻译： 本发明提出了即使在共振域中也是有效的新颖的燃烧原理。 在本发明中，光（51）被入射到衍射光栅上，使得镜面共振可以发生在两个或更多个光散射单元中，包括例如双球（11a，21a，12a，21a）和 选择性地增强了镜面共振，由第一层（1）和第二层（2）衍射的衍射光52的一部分。 根据本发明，也可以通过来自外部的控制信号来调节燃烧状态。

    Optical system using diffraction optical element
    67.
    发明申请
    Optical system using diffraction optical element 审中-公开
    光学系统采用衍射光学元件

    公开(公告)号：US20060087737A1

    公开(公告)日：2006-04-27

    申请号：US11183964

    申请日：2005-07-19

    申请人： Yun Choi ,  Ho Jeong ,  Chon Kyong ,  Dong Shin

    发明人： Yun Choi ,  Ho Jeong ,  Chon Kyong ,  Dong Shin

    IPC分类号： G02B5/18 ,  G02B27/44

    CPC分类号： G02B27/4277 ,  G02B27/0037 ,  G02B27/4211

    摘要： There is provided an optical system using diffraction optical elements (DOEs) for improving chromatic aberration correction performance by arranging two DOEs between planes adjacent to a lens having plus refractive power and a lens having minus refractive power. The optical system has an aperture stop for controlling light amount, a first lens group, a second lens group, and a third lens group, which are sequentially arranged from an object side. The first lens group includes a first lens having plus refractive power and a second lens having minus refractive power arranged sequentially from the object side. The second or third lens group has a lens where at least one refraction surface is aspherical. In the optical system using DOEs (diffraction optical elements), a first DOE is joined to an image side of the first lens and a second DOE is joined to an object side of the second lens in correspondence to the first diffraction optical element.

    摘要翻译： 提供了一种使用衍射光学元件（DOE）的光学系统，用于通过在与具有正折射光焦度的透镜相邻的平面和具有负折射光焦度的透镜之间布置两个DOE来改善色像差校正性能。 光学系统具有用于控制光量的孔径光阑，第一透镜组，第二透镜组和第三透镜组，它们从物体侧顺序排列。 第一透镜组包括具有正折射光焦度的第一透镜和具有从物体侧顺次布置的负折射光焦度的第二透镜。 第二或第三透镜组具有至少一个折射表面是非球面的透镜。 在使用DOE（衍射光学元件）的光学系统中，第一DOE被连接到第一透镜的像侧，并且第二DOE与第一衍射光学元件相对应地接合到第二透镜的物体侧。

    Optical system and method of designing optical system
    69.
    发明申请
    Optical system and method of designing optical system 失效
    光学系统及其设计方法

    公开(公告)号：US20050117221A1

    公开(公告)日：2005-06-02

    申请号：US10992733

    申请日：2004-11-22

    申请人： Hideki Ogawa

    发明人： Hideki Ogawa

    IPC分类号： G02B5/18 ,  G02B13/18 ,  G02B27/00 ,  G02B27/44

    CPC分类号： G02B27/4211 ,  G02B27/0037 ,  G02B27/4216 ,  G02B27/4272 ,  G02B27/4277

    摘要： An optical system includes a diffractive optical element and a refractive optical element. The diffractive optical element corrects a chromatic aberration flare component of wavelengths other than a predetermined wavelength (a design wavelength) remaining in the refractive optical element by means of an aspherical component given by the grating pitch of a diffraction grating included in a diffractive portion of the diffractive optical element. In addition, a refractive portion of the diffractive optical element is adapted to correct an aberration component as a composite of the aberration component of the design standard wavelength shifted by the correction and the aberration component of the design standard wavelength of the refractive optical element.

    摘要翻译： 光学系统包括衍射光学元件和折射光学元件。 衍射光学元件通过由包含在衍射光学元件的衍射部分中的衍射光栅的光栅间距给出的非球面分量校正残留在折射光学元件中的预定波长（设计波长）以外的波长的色差扩散分量 衍射光学元件。 此外，衍射光学元件的折射部分适于校正像差分量，作为偏移校正的设计标准波长的像差分量和折射光学元件的设计标准波长的像差分量的复合值。