公开(公告)号：US20150316476A1

公开(公告)日：2015-11-05

申请号：US14649096

申请日：2013-11-29

Applicant: HORIBA JOBIN YVON SAS

Inventor： Olivier ACHER ,  Simon RICHARD ,  Christian BRACH ,  Viviane MILLET ,  Sebastien CORDE ,  Daphne HERAN

IPC: G01N21/64 ,  G01J3/18 ,  G01J3/447 ,  G01J3/02

CPC classification number: G01N21/645 ,  G01J3/021 ,  G01J3/0224 ,  G01J3/18 ,  G01J3/447 ,  G01N2201/063 ,  G01N2201/0633 ,  G02B5/1866 ,  G02B27/283

Abstract: A spectrometer (100) for analyzing the spectrum of an upstream light beam (1), includes an entrance slit (101) and collimating elements (110) suitable for generating, from the upstream light beam, a collimated light beam (10), characterized in that it also includes: a polarization-dependent diffraction grating (120) suitable for diffracting, at each wavelength (11, 12) of the spectrum of the upstream light beam, the collimated light beam into a first diffracted light beam (11, 12) and a second diffracted light beam (21, 22); optical recombining elements (130) including a planar optical reflecting surface (130) perpendicular to the grating and suitable for deviating at least the second diffracted light beam; and focussing elements (140) suitable for focussing, at each wavelength, the first diffracted light beam and the second diffracted light beam onto one and the same focussing area (141).

Abstract translation: 用于分析上游光束（1）的光谱的光谱仪（100）包括入射狭缝（101）和适于从上游光束产生准直光束（10）的准直元件（110），其特征在于 因为它还包括：适用于在上游光束的光谱的每个波长（11,12）衍射的偏振相关衍射光栅（120），准直光束成为第一衍射光束（11,12 ）和第二衍射光束（21,22）; 光学重组元件（130），包括垂直于光栅的平面光学反射表面（130），并且适于至少偏离第二衍射光束; 以及适于在每个波长处将第一衍射光束和第二衍射光束聚焦到同一聚焦区域（141）上的聚焦元件（140）。