MULTI-CONJUGATE LIQUID CRYSTAL TUNABLE FILTER

    公开(公告)号:CA2596251A1

    公开(公告)日:2006-08-10

    申请号:CA2596251

    申请日:2006-01-26

    Applicant: CHEMIMAGE CORP

    Abstract: A hyper-spectral imaging filter has serial stages along an optical signal path in a Solc filter configuration. Angularly distributed retarder elements of equal birefringence are stacked in each stage, with a polarizer between stages. The retarders can include tunable (such as abutted liquid crystals tuned in unison), fixed and/or combined tunable and fixed birefringences. Although the retardations are equal within each stage, distinctly different retardations are used for two or more different stages. This causes some stages to pass narrow bandpass peaks and other stages to have widely spaced bandpass peaks. The transmission functions of the serial stages are superimposed with selected preferably-tunable peaks coinciding. The resulting conjugate filter has a high finesse ratio, and good out of band rejection.

    MULTI-CONJUGATE LIQUID CRYSTAL TUNABLE FILTER
    4.
    发明申请
    MULTI-CONJUGATE LIQUID CRYSTAL TUNABLE FILTER 审中-公开
    多重共轭液晶可调滤波器

    公开(公告)号:WO2006083720A2

    公开(公告)日:2006-08-10

    申请号:PCT/US2006003012

    申请日:2006-01-26

    Applicant: CHEMIMAGE CORP

    Abstract: A hyper-spectral imaging filter has serial stages (33, 35) along an optical signal path, each stage having angularly arranged retarder elements (45, 47) and one or more polarizers (42, 44). The retarders can include tunable (such as abutted liquid crystals tuned in unison), fixed and/or combined tunable and fixed birefringences, and can be arranged in Sole, Lyot, Evans or similar configurations. Each stage has a periodic transmission characteristic with periodic bandpass peaks (52) spaced by free spectral range bandpass gaps. Distinctly different retardations are employed in cascaded stages, causing some stages to pass narrow bandpass peaks and other stages to have widely spaced bandpass peaks (large free spectral range). The transmission functions of the serial stages are superimposed, providing a high finesse ratio and good out-of- band rejection. Preferably at least some stages have tunable liquid crystals for at least part of their retardation, and are controlled to selectively align respective bandpass eaks.

    Abstract translation: 高光谱成像滤光器沿着光学信号路径具有串联级(33,35),每个级具有成角度布置的延迟器元件(45,47)和一个或多个偏振器(42,44)。 缓凝剂可以包括可调(例如一致调谐的邻接液晶),固定和/或组合可调和固定双折射,并且可以以Sole,Lyot,Evans或类似配置布置。 每个级具有周期性传输特性,其具有由自由光谱范围带通间隙间隔的周期性带通峰值(52)。 级联阶段采用截然不同的延迟,导致一些阶段通过窄带通峰和其他阶段,以具有宽间隔的带通峰(大的自由光谱范围)。 串行级的传输功能叠加在一起,提供高精细比率和良好的带外抑制。 优选地,至少一些级对于其延迟的至少一部分具有可调谐液晶,并且被控制以选择性地对准相应的带通排列。

    METHOD AND APPARATUS FOR A MICROSCOPE IMAGE SELECTOR
    10.
    发明申请
    METHOD AND APPARATUS FOR A MICROSCOPE IMAGE SELECTOR 审中-公开
    一种显微镜图像选择器的方法和装置

    公开(公告)号:WO2006083716A3

    公开(公告)日:2007-04-19

    申请号:PCT/US2006002976

    申请日:2006-01-30

    Abstract: The disclosure generally relates to a multimode imaging apparatus for simultaneously obtaining multiple wavelength-discriminative spectral images of a sample (100). In one embodiment, the apparatus includes an image selector (108) having a rotator assembly, the rotator assembly housing a first plurality of optical components, the image selector adapted to receive a illuminating photons having a first wavelength and direct the illuminating photons to the sample, the image selector (108) adapted to receive illuminating photons interacted with the sample and selectively direct said interacted photons to one of a plurality of detection sources; a microscope turret (102) housing a second plurality of components, the microscope turret (102) adapted to receive illuminating photons having a second wavelength and direct the photons to the sample; the microscopic turret (102) adapted to receive illuminating photons interacted with the sample and selectively direct said interacted photons to one of a plurality of detection sources; wherein substantially all of the interacted photons are selectively directed one of a plurality of detection sources to form multiple wavelength discriminative spectral images of the sample simultaneously.

    Abstract translation: 本公开内容通常涉及用于同时获得样本(100)的多个波长鉴别光谱图像的多模式成像装置。 在一个实施例中,该装置包括具有旋转器组件的图像选择器(108),旋转体组件容纳第一多个光学部件,图像选择器适于接收具有第一波长的照明光子并将照射光子引导至样品 ,所述图像选择器(108)适于接收与所述样本相互作用的照明光子并选择性地将所述相互作用的光子引导到多个检测源中的一个; 显微镜转台(102),其容纳第二多个部件,所述显微镜转台(102)适于接收具有第二波长的照射光子并将所述光子引导到所述样品; 适于接收与样品相互作用的照明光子并且将所述相互作用的光子选择性地引导到多个检测源中的一个的微观炮塔(102); 其中基本上所有相互作用的光子被选择性地指向多个检测源中的一个,以同时形成样品的多个波长鉴别光谱图像。

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