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    • 2. 发明申请
    • LIGHT DIFFRACTION
    • 光分散
    • WO2003075050A1
    • 2003-09-12
    • PCT/SE2003/000334
    • 2003-03-03
    • MULTICHANNEL INSTRUMENTS ABLINDBLOM, Peter
    • LINDBLOM, Peter
    • G02B5/18
    • G01J3/16G01J3/0259G01J3/18
    • Methods and systems for carrying out the distribution of light in a ray pathway (21) into wavelength components (21 - 27) comprising optical elements (10, 11) of the diffraction grating type that diffract the said light into several spectral orders (m). The invention is characterised in that at least two diffraction grating surfaces are placed sequentially in the ray pathway whose orientations and grating constants are selected such that the wavelength components that are diffracted at the grating surfaces into the respective orders, whose sum (M = m1 + m2) is constant, emerge from the last grating surface (11) in essentially the same direction.
    • 用于将光线路径(21)中的光分布进入包括衍射光栅类型的光学元件(10,11)的波长分量(21-27)的方法和系统,其将所述光衍射成若干光谱级(m) 。 本发明的特征在于,将至少两个衍射光栅表面依次放置在其取向和光栅常数被选择的光线路径中,使得在光栅表面处被衍射的波长成分分成各个阶数,其总和(M = m1 + m2)是恒定的,从最后的光栅表面(11)以基本上相同的方向出现。
    • 4. 发明申请
    • APPARATUS FOR CARRYING OUT SPECTRAL ANALYSIS OF AN OPTICAL LIGHT SOURCE USING IMAGE DETECTION AND SEPARATION OF SPECIAL SPECTRAL ORDERS
    • 使用图像检测和特殊光谱分配的光学光源进行光谱分析的装置
    • WO1995031703A1
    • 1995-11-23
    • PCT/SE1995000543
    • 1995-05-15
    • NOW OPTICS ABLINDBLOM, Peter
    • NOW OPTICS AB
    • G01J03/18
    • G01J3/16G01J3/02G01J3/0205G01J3/18G01J3/24G01J2003/1204G01J2003/1828
    • An apparatus for carrying out spectral analysis of optical radiation emitted from a light source (11) comprises a spectral detector (1) having an entrance aperture (10) for the radiation from thelight source (11), a first imaging optical component (12), a diffraction grating (14) for wavelength dispersion of the radiation, order sorting means (131, 132) for separation of the spectral orders of the diffraction grating (14), a second imaging optical component (15), and a detecting unit (16) for registration of the light source spectrum divided into order spectra through the order sorting means (131, 132). The order sorting means (131, 132) comprise at least two refractive optical components manufactured from different material. The two refractive optical components (131 and 132) together with the diffraction grating (14) and the imaging optical components (12 and 15) produce a substantially uniform distribution of the order spectra on the detector unit (16). Favourably the order sorting means (131, 132), the diffraction grating (14) and the imaging optical components (12, 15) also co-act to produce a substantially stigmatic image of the entrance aperture (10) in at least one point on the detector unit (16).
    • 用于进行从光源(11)发射的光辐射的光谱分析的装置包括具有用于来自光源(11)的辐射的入射孔(10)的光谱检测器(1),第一成像光学部件(12) ,用于辐射的波长色散的衍射光栅(14),用于分离衍射光栅(14)的光谱级的分级装置(131,132),第二成像光学部件(15)和检测单元( 16),用于通过订单分拣装置(131,132)分配成顺序光谱的光源光谱的登记。 订单分拣装置(131,132)包括由不同材料制成的至少两个折射光学部件。 两个折射光学部件(131和132)与衍射光栅(14)和成像光学部件(12和15)一起产生在检测器单元(16)上的顺序光谱的基本上均匀的分布。 有利的是,顺序分选装置(131,132),衍射光栅(14)和成像光学部件(12,15)也共同作用,以在至少一个点上产生入射孔径(10)的基本上眩目的图像, 检测器单元(16)。