公开(公告)号：US07561274B2

公开(公告)日：2009-07-14

申请号：US11532554

申请日：2006-09-18

Applicant: David J Brady ,  Bob D Guenther ,  Michael E Gehm ,  Scott T McCain

Inventor： David J Brady ,  Bob D Guenther ,  Michael E Gehm ,  Scott T McCain

IPC: G01B9/02 ,  G01J3/45

CPC classification number: G01J3/26 ,  G01J3/0208 ,  G01J3/18 ,  G01J3/1838 ,  G01J3/2803

Abstract: An optical spectrometer and/or a method of optical spectroscopy is described herein. One exemplary spectrometer includes a planar spectral filter, a dispersion system, and a detector array having at least two dimensions. The planar spectral filter filters incident light to generate a plurality of wavelength dependent spatial patterns. The dispersion system disperses the spatial patterns along at least one dimension in a wavelength dependent fashion onto the detector array. As a result, spatial patterns corresponding to different wavelengths are centered at different locations on the detector array. The dispersed spatial patterns superimpose at the detector array in an offset but overlapping relationship, creating an asymmetric image that facilitates the spectral analysis of a wide range of light sources, including diffuse or spectrally complex light sources.

Abstract translation: 本文描述了光谱仪和/或光谱法的方法。 一个示例性光谱仪包括平面光谱滤光器，分散系统和具有至少两个维度的检测器阵列。 平面光谱滤波器对入射光进行滤光以产生多个依赖于波长的空间图案。 分散系统将沿着至少一个维度的空间图案以波长依赖的方式分散到检测器阵列上。 结果，对应于不同波长的空间图案集中在检测器阵列上的不同位置。 分散的空间图案以偏移但重叠的关系叠加在检测器阵列处，产生促进宽范围光源（包括漫射或光谱复合光源）的光谱分析的不对称图像。

公开(公告)号：US07301625B2

公开(公告)日：2007-11-27

申请号：US11334546

申请日：2006-01-19

Applicant: David Brady ,  Scott T. McCain ,  Michael E. Gehm ,  Michael E. Sullivan ,  Prasant Potuluri

Inventor： David Brady ,  Scott T. McCain ,  Michael E. Gehm ,  Michael E. Sullivan ,  Prasant Potuluri

IPC: G01J3/04 ,  G01J3/28

CPC classification number: G01J3/2846 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0229

Abstract: A class of aperture coded spectrometer is optimized for the spectral characterization of diffuse sources. The instrument achieves high throughput and high spatial resolution by replacing the slit of conventional dispersive spectrometers with a spatial filter or mask. A number of masks can be used including Harmonic masks, Legendre masks, and Hadamard masks.

Abstract translation: 一类孔径编码光谱仪针对扩散源的光谱特征进行了优化。 该仪器通过用空间滤波器或掩模代替常规色散光谱仪的狭缝，实现了高通量和高空间分辨率。 可以使用多个掩模，包括谐波掩模，Legendre面具和Hadamard面具。

公开(公告)号：US07505130B2

公开(公告)日：2009-03-17

申请号：US11942420

申请日：2007-11-19

Applicant: David J. Brady ,  Scott T. McCain ,  Michael E. Gehm ,  Michael E. Sullivan ,  Prasant Potuluri

Inventor： David J. Brady ,  Scott T. McCain ,  Michael E. Gehm ,  Michael E. Sullivan ,  Prasant Potuluri

IPC: G01J3/04 ,  G01J3/28

CPC classification number: G01J3/2846 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0229

Abstract: A class of aperture coded spectrometer is optimized for the spectral characterization of diffuse sources. The instrument achieves high throughput and high spatial resolution by replacing the slit of conventional dispersive spectrometers with a spatial filter or mask. A number of masks can be used including Harmonic masks, Legendre masks, and Hadamard masks.

Abstract translation: 一类孔径编码光谱仪针对扩散源的光谱特征进行了优化。 该仪器通过用空间滤波器或掩模代替常规色散光谱仪的狭缝，实现了高通量和高空间分辨率。 可以使用多个掩模，包括谐波掩模，Legendre面具和Hadamard面具。