公开(公告)号：US09689744B2

公开(公告)日：2017-06-27

申请号：US14327704

申请日：2014-07-10

Applicant: Massachusetts Institute of Technology

Inventor： Michael P. Chrisp

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/18 ,  G01J3/12

CPC classification number: G01J3/2823 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0256 ,  G01J3/1804 ,  G01J2003/1204 ,  G01J2003/1273

Abstract: An imaging spectrometer, covering the visible through infrared wavelengths, which disperses the light by a plane diffraction grating behind a wedged optical element. This design uses an achromatic doublet lens with a reflective coating on its convex back surface to produce the spectra on a flat detector. Spatial keystone distortion and spectral smile are controlled to less than one tenth of a pixel over the full wavelength range, facilitating the use of simple retrieval algorithms.

公开(公告)号：US20150021480A1

公开(公告)日：2015-01-22

申请号：US14327704

申请日：2014-07-10

Applicant: Massachusetts Institute of Technology

Inventor： Michael P. Chrisp

IPC: G01J3/28 ,  G01J3/18 ,  G01J3/02

CPC classification number: G01J3/2823 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0256 ,  G01J3/1804 ,  G01J2003/1204 ,  G01J2003/1273

Abstract: An imaging spectrometer, covering the visible through infrared wavelengths, which disperses the light by a plane diffraction grating behind a wedged optical element. This design uses an achromatic doublet lens with a reflective coating on its convex back surface to produce the spectra on a flat detector. Spatial keystone distortion and spectral smile are controlled to less than one tenth of a pixel over the full wavelength range, facilitating the use of simple retrieval algorithms.

Abstract translation: 一种成像光谱仪，覆盖可见的红外波长，其通过平面衍射光栅将光分散在楔形光学元件后面。 该设计使用了一个消色差双透镜，在其背面的背面具有反射涂层，以便在平坦的检测器上产生光谱。 在整个波长范围内，空间梯形失真和光谱微笑被控制为小于像素的十分之一，便于使用简单的检索算法。