LIGHT CONTROL DEVICE AND LIGHT CONTROL METHOD

专利名称：LIGHT CONTROL DEVICE AND LIGHT

CONTROL METHOD

发明人：MATSUMOTO NAOYA,ANDO TARO,INOUE

TAKASHI,OHTAKE YOSHIYUKI

申请号：EP09834946申请日：20091224公开号：EP2381295A4公开日：20150520

摘要：A light control device 1 includes a light source 10, a prism 20, a spatial lightmodulator 30, a drive unit 31, a control unit 32, a lens 41, an aperture 42, and a lens 43.The spatial light modulator 30 is a phase modulating spatial light modulator, includes aplurality of two-dimensionally arrayed pixels, is capable of phase modulation in each ofthese pixels in a range of 4π or more, and presents a phase pattern to modulate thephase of light in each of the pixels. This phase pattern is produced by superimposing ablazed grating pattern for light diffraction and a phase pattern having a predeterminedphase modulation distribution, and with a phase modulation range of 2π or more.

申请人：HAMAMATSU PHOTONICS K.K.

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