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    • 27. 发明专利
    • Optical unit, optical illumination device, exposure device, and method of manufacturing device
    • 光学单元,光学照明装置,曝光装置和制造装置的方法
    • JP2009105396A
    • 2009-05-14
    • JP2008263405
    • 2008-10-10
    • Nikon Corp株式会社ニコン
    • TANITSU OSAMU
    • H01L21/027G03F7/20
    • G02B27/0927F21V9/14F21V13/02F21V14/003G02B27/0938G02B27/1086G02B27/126G02B27/286G03F7/70058G03F7/70116G03F7/70566
    • PROBLEM TO BE SOLVED: To provide an optical illumination device capable of achieving illumination conditions having diversity for the shape of illumination pupil luminance distribution, size, and polarization states. SOLUTION: The optical illumination device includes an optical unit 3. The optical unit has: a light splitter 35 for splitting an incident luminous flux into two; a first spatial light modulator 33 that can be disposed in the optical path of first light flux; a second spatial light modulator 34 that can be disposed in the optical path of second light flux; and an optical synthesizer 36 for compositing luminous flux via the first spatial light modulator and that via the second one. The first and second spatial light modulators having a plurality of optical elements 33a, 34a arranged two-dimensionally and controlled individually. COPYRIGHT: (C)2009,JPO&INPIT
    • 解决的问题:提供一种能够实现对于照明光瞳的亮度分布,大小和偏振状态的形状具有分集性的照明条件的光学照明装置。 解决方案:光学照明装置包括光学单元3.光学单元具有:用于将入射光束分成两个的分光器35; 可以设置在第一光束的光路中的第一空间光调制器33; 可以设置在第二光束的光路中的第二空间光调制器34; 以及用于经由第一空间光调制器和经由第二空间光调制器的光通量合成光通量的光合成器36。 第一和第二空间光调制器具有多个光学元件33a,34a,其被二维地布置并分别控制。 版权所有(C)2009,JPO&INPIT