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    • 3. 发明专利
    • Diffraction optical element, optical system and optical equipment
    • 衍射光学元件,光学系统和光学设备
    • JP2011257663A
    • 2011-12-22
    • JP2010133595
    • 2010-06-11
    • Canon Incキヤノン株式会社
    • USHIGOME REONA
    • G02B5/18G02B13/02
    • G02B27/44G02B5/1895G02B27/0037
    • PROBLEM TO BE SOLVED: To provide a diffraction optical element suppressing degradation in the image performance.SOLUTION: The diffraction optical element is used for a lens in an optical system and comprises: a first diffraction grating having a first grating face and a first grating wall face; a reflection member disposed on the first grating wall face; and a second diffraction grating having a second grating face and a second grating wall face disposed in such a manner that the second grating face is in contact with the first grating face and that the second grating wall face is in contact with the reflection member. When an off-screen incident beam incident at an angle equal to or larger than the incident angle of an off-axis beam of the optical system is incident to the diffraction optical element at a predetermined incident angle with respect to the normal line of the lens face, an exit angle at which a beam outgoing from the first grating wall face or the second grating wall face shows the maximum intensity is appropriately set, and the maximum width of the reflection member and the respective grating pitches of the first diffraction grating and of the second diffraction grating are set in an appropriately relation.
    • 要解决的问题:提供抑制图像性能劣化的衍射光学元件。 解决方案:衍射光学元件用于光学系统中的透镜,并且包括:具有第一光栅面和第一光栅壁面的第一衍射光栅; 反射构件,设置在所述第一光栅壁面上; 以及具有第二光栅面和第二光栅壁面的第二衍射光栅,所述第二光栅面和第二光栅壁面设置成使得第二光栅面与第一光栅面接触,第二光栅壁面与反射部件接触。 当以等于或大于光学系统的离轴光束的入射角入射的离屏入射光线相对于透镜的法线以预定的入射角入射到衍射光学元件时 适当地设定从第一光栅壁面或第二光栅壁面出射的光束显示最大强度的出射角,以及第一衍射光栅的反射部件和各个光栅间距的最大宽度和 第二衍射光栅被适当地设定。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Nonlinear optical microscope and nonlinear optical microscopy
    • 非线性光学显微镜和非线性光学显微镜
    • JP2013076770A
    • 2013-04-25
    • JP2011215477
    • 2011-09-29
    • Olympus Corpオリンパス株式会社Univ Of Tokyo国立大学法人 東京大学
    • IKETAKI YOSHINORIKANO HIDEAKI
    • G02B21/06
    • G01N21/65G01J3/10G01J3/44G01N2021/653G02B21/0004G02B21/082G02B21/14G02B27/425G02B27/44
    • PROBLEM TO BE SOLVED: To provide a nonlinear optical microscope capable of improving the spatial resolution.SOLUTION: The nonlinear optical microscope includes: an illuminating unit (comprising parts 11, 12, 13, 21, 25, 26, 31, 32, and 33) which irradiates a sample 35 with illuminating beams of at least two colors different by wavelength through an objective lens 33 so that the illuminating beams overlap spatially and temporally; and a detection unit (comprising parts 41, 42, 43, 44, 45, and 46) which detects signal light generated from the sample 35 by a nonlinear optical effect caused by irradiation of the illuminating beams of at least two colors to the sample 35. The illuminating unit irradiates the sample 35 with, as the illuminating beams of at least two colors, illuminating beams where a wavefront distribution of the illuminating beam of at least one color is different from that of the illuminating beam of the other color.
    • 要解决的问题:提供能够提高空间分辨率的非线性光学显微镜。 解决方案:非线性光学显微镜包括:照射单元(包括部分11,12,13,21,25,26,31,32和33),其向样品35照射具有不同的至少两种颜色的照明光束 通过物镜33的波长使照明光束在空间和时间上重叠; 以及检测单元(包括部分41,42,43,44,45和46),其通过由至少两种颜色的照射光束照射到样品35而产生的非线性光学效应来检测从样品35产生的信号光 照明部照射具有至少两种颜色的照明光束的至少一种颜色的照明光束的波前分布与另一种颜色的照明光束的波前分布的照明光束的样品35。 版权所有(C)2013,JPO&INPIT