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    • 50. 发明专利
    • Light observation device
    • 光观察装置
    • JP2014122969A
    • 2014-07-03
    • JP2012278184
    • 2012-12-20
    • Hamamatsu Photonics Kk浜松ホトニクス株式会社
    • TAKIGUCHI MASARU
    • G02B21/00G02B1/06G02B3/08G02F1/13
    • G02B5/32G02B3/08G02B5/18G02B5/1814G02B21/00G02B21/365G03H1/0005G03H1/0841G03H2001/005G03H2001/0094G03H2001/085
    • PROBLEM TO BE SOLVED: To provide a light observation device capable of easily obtaining an observation optical image of an irradiation part even when a condensing position of modulated light is changed in an optical axis direction.SOLUTION: A light observation device 1A includes: a spatial light modulator 20 which displays a Fresnel kinoform on a phase modulation plane 20a and which applies modulated light L2 to an observation object B after modulating a phase of light L1; an imaging optical system 15 imaging observed light L3 from the observation object B; an optical system moving mechanism 16 moving the imaging optical system 15 in an optical axis direction of the observed light L3; and a controller 19 controlling the optical system moving mechanism 16 in such a manner that a focal position of the imaging optical system 15 changes corresponding to a change of the condensing position of the modulated light L2 due to the Fresnel kinoform.
    • 要解决的问题:提供一种即使当调制光的聚光位置在光轴方向上变化时也能够容易地获得照射部分的观察光学图像的光观察装置。解决方案:光观察装置1A包括:空间 光调制器20,其在相位调制平面20a上显示菲涅尔奇诺图,并且在调制光L1的相位之后将调制光L2施加到观察对象B; 成像光学系统15对来自观察对象B的观察光L3成像; 光学系统移动机构16,沿着观察光L3的光轴方向移动成像光学系统15; 控制器19以这样的方式控制光学系统移动机构16,使得成像光学系统15的焦点位置对应于由于菲涅尔变形而调制的光L2的聚光位置的变化而变化。