公开(公告)号：US09194743B2

公开(公告)日：2015-11-24

申请号：US14629858

申请日：2015-02-24

Applicant: Thermo Scientific Portable Analytical Instruments Inc.

Inventor： David R. Day ,  Malcolm C. Smith ,  Peidong Wang

IPC: G01J3/44 ,  G01J3/32 ,  G01J3/02 ,  G01N21/65

CPC classification number: G01J3/32 ,  G01J3/0229 ,  G01J3/0272 ,  G01J3/44 ,  G01J3/4412 ,  G01N21/65 ,  G01N2201/06113

Abstract: A Raman spectrometer including a laser excitation source, edge filters, and detection optics that direct light into a spectrograph. A spectrograph containing a dispersive element and optics that directs various wavelengths of light onto a segmented diffractive MEMS light modulator array. The MEMS array, depending on actuation state, directs light either to or away from a single detector. Control electronics drive the MEMS light modulator for either sequential wavelength measurement or multiplexed wavelength measurement (Hadamard for example).

Abstract translation: 拉曼光谱仪包括激光源，边缘滤光片以及将光引入光谱仪的检测光学器件。 包含分散元件和光学元件的光谱仪，其将各种波长的光引导到分段的衍射MEMS光调制器阵列上。 取决于致动状态的MEMS阵列将光指向或远离单个检测器。 控制电子驱动MEMS光调制器用于顺序波长测量或多路复用波长测量（例如Hadamard）。