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    • 74. 发明专利
    • Device and method for controlling light
    • 用于控制光的装置和方法
    • JP2010151948A
    • 2010-07-08
    • JP2008327855
    • 2008-12-24
    • Hamamatsu Photonics Kk浜松ホトニクス株式会社
    • MATSUMOTO NAOYAANDO TAROINOUE TAKUOTAKE YOSHIYUKI
    • G02F1/01G02B26/06G02B27/09
    • G02B26/0808G02B21/086G02B26/06G02B27/4205G03H1/0841G03H2001/085G03H2225/32G03H2240/61
    • PROBLEM TO BE SOLVED: To provide a light control device by which light having a desired beam section is obtained in a technology for presenting a phase pattern formed by superposing a phased grating pattern and a phase pattern having predetermined phase modulation distribution to a space light modulator of a phase modulation type.
      SOLUTION: The light control device 1 includes: a light source 10; a prism 20; the space light modulator 30; a driving part 31; a control part 32; a lens 41; an aperture 42; and a lens 43. The space light modulator 30 is of the phase modulation type, has a plurality of two-dimensionally arranged pixels, phase modulation in each of the plurality of pixels is possible within a range of 4π, and presents the phase pattern for modulating phases of light in each of the plurality of pixels. The phase pattern is constituted by superposition of a blazed grating pattern for optical diffraction whose phase modulation range is equal to or less than 2π and a phase pattern having the predetermined phase modulation distribution whose phase modulation range is equal to or less than 2π.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种光控制装置,通过该光控制装置可以获得具有期望光束部分的光,该技术用于呈现通过将相位光栅图案和具有预定相位调制分布的相位图案叠加到 相位调制型空间光调制器。 光控制装置1包括:光源10; 棱镜20; 空间光调制器30; 驱动部31; 控制部32; 透镜41; 孔42; 空间光调制器30具有相位调制型,具有多个二维排列的像素,在4π的范围内,可以在多个像素的每一个中进行相位调制,将相位图案呈现在 调制多个像素中的每一个中的光的相位。 相位图案由相位调制范围等于或小于2π的用于光学衍射的闪耀光栅图案和相位调制范围等于或小于2π的预定相位调制分布的相位图案叠加构成。 版权所有(C)2010,JPO&INPIT