公开(公告)号：US20230069726A1

公开(公告)日：2023-03-02

申请号：US17657627

申请日：2022-03-31

Applicant: Fudan University ,  Zhongshan Fudan Joint Innovation Center

Inventor： Liangyao Chen ,  Yuxiang Zheng ,  Haibin Zhao ,  Rongjun Zhang ,  Songyou Wang ,  Jianke Chen ,  Anqing Jiang ,  Yuemei Yang

IPC: G01J3/02 ,  G01J3/18 ,  G01J3/04

Abstract: The present disclosure discloses a grating spectrometer having a V-shaped projection light path and capable of eliminating coma aberration. The grating spectrometer includes an entrance slit S1, a grating G, an entrance spherical reflector M1, a focusing spherical reflector M2, and an exit slit S2 which are arranged on a light path in sequence in a light transmission direction. The entrance slit S1 and the exit slit S2 are respectively arranged on two sides of the grating G, and a coaxial entrance light path formed by the entrance slit S1 and the entrance spherical reflector M1 and a coaxial diffraction light path formed by the grating G and the focusing spherical reflector M2 form a V-shaped structure by projection in a diffraction plane. The grating spectrometer has actual population and application value.

公开(公告)号：US11268853B2

公开(公告)日：2022-03-08

申请号：US16932869

申请日：2020-07-20

Applicant: Fudan University

Inventor： Liangyao Chen ,  Songyou Wang ,  Haibin Zhao ,  Yuxiang Zheng ,  Rongjun Zhang ,  Yuemei Yang ,  Jianke Chen ,  Anqing Jiang

IPC: G01J3/02 ,  G01J3/04 ,  G01J3/18 ,  G01J3/28 ,  G01J3/12

Abstract: The present invention discloses a multichannel broadband high-resolution spectrograph, comprising a plurality of light source incident slits, a multichannel integrated grating, a multichannel shared two-dimensional focus imaging mirror and a two-dimensional area array detector which are sequentially disposed along a light source incident or reflection line, wherein the multichannel integrated grating consists of a plurality of sub-gratings, incident light enters the corresponding integrated gratings along the light source incident slits and then is focused by the shared two-dimensional focus imaging mirror after diffraction of the integrated grating, and diffraction light in a full-spectrum region is incident onto a focal plane of the two-dimensional area array detector for detection. No any mechanical displacement part is disposed, multichannel, full-spectrum and high-speed detection and analysis is achieved, and the present disclosure has high spectrum resolution and working reliability.

公开(公告)号：US11293803B2

公开(公告)日：2022-04-05

申请号：US16932870

申请日：2020-07-20

Applicant: Fudan University

Inventor： Liangyao Chen ,  Songyou Wang ,  Haibin Zhao ,  Yuxiang Zheng ,  Rongjun Zhang ,  Yuemei Yang ,  Jianke Chen ,  Anqing Jiang

IPC: G01J3/18 ,  G01J3/02 ,  G01J3/04 ,  G01J3/28

Abstract: The present invention discloses a coma-elimination broadband high-resolution spectrograph, comprising incident slits, a collimating mirror, an integrated grating, a two-dimensional focus imaging mirror and a two-dimensional area array detector, wherein the incident slits enters along the incident slits, passes through a light through hole in the center of the integrated grating and is incident to the collimating mirror, the incident light enters the integrated grating along a coaxial optical path L1 after collimation of the collimating mirror and is focused by the two-dimensional focus imaging mirror after diffraction of each sub-grating, diffraction light in full spectrum region enters a focal plane of the two-dimensional area array detector for detection along an coaxial optical path L2, and off-axis angles of the L1 and the L2 are zero.

公开(公告)号：US20200348174A1

公开(公告)日：2020-11-05

申请号：US16932870

申请日：2020-07-20

Applicant: Fudan University

Inventor： Liangyao Chen ,  Songyou Wang ,  Haibin Zhao ,  Yuxiang Zheng ,  Rongjun Zhang ,  Yuemei Yang ,  Jianke Chen ,  Anqing Jiang

IPC: G01J3/18 ,  G01J3/02 ,  G01J3/28 ,  G01J3/04

Abstract: The present invention discloses a coma-elimination broadband high-resolution spectrograph, comprising incident slits, a collimating mirror, an integrated grating, a two-dimensional focus imaging mirror and a two-dimensional area array detector, wherein the incident slits enters along the incident slits, passes through a light through hole in the center of the integrated grating and is incident to the collimating mirror, the incident light enters the integrated grating along a coaxial optical path L1 after collimation of the collimating mirror and is focused by the two-dimensional focus imaging mirror after diffraction of each sub-grating, diffraction light in full spectrum region enters a focal plane of the two-dimensional area array detector for detection along an coaxial optical path L2, and off-axis angles of the L1 and the L2 are zero.

公开(公告)号：US20200348172A1

公开(公告)日：2020-11-05

申请号：US16932869

申请日：2020-07-20

Applicant: Fudan University

Inventor： Liangyao Chen ,  Songyou Wang ,  Haibin Zhao ,  Yuxiang Zheng ,  Rongjun Zhang ,  Yuemei Yang ,  Jianke Chen ,  Anqing Jiang

IPC: G01J3/02 ,  G01J3/04 ,  G01J3/18 ,  G01J3/28

Abstract: The present invention discloses a multichannel broadband high-resolution spectrograph, comprising a plurality of light source incident slits, a multichannel integrated grating, a multichannel shared two-dimensional focus imaging mirror and a two-dimensional area array detector which are sequentially disposed along a light source incident or reflection line, wherein the multichannel integrated grating consists of a plurality of sub-gratings, incident light enters the corresponding integrated gratings along the light source incident slits and then is focused by the shared two-dimensional focus imaging mirror after diffraction of the integrated grating, and diffraction light in a full-spectrum region is incident onto a focal plane of the two-dimensional area array detector for detection. No any mechanical displacement part is disposed, multichannel, full-spectrum and high-speed detection and analysis is achieved, and the present disclosure has high spectrum resolution and working reliability.