US 12,085,447 B2
Spectroscopy system
Jae Hwan Lee, Daejeon (KR); Young Soo Chung, Daejeon (KR); Hyung Bin Son, Seoul (KR); Se Kyu Shim, Seoul (KR); and Jung Taek Hong, Seoul (KR)
Assigned to AGENCY FOR DEFENSE DEVELOPMENT, Daejeon (KR)
Filed by AGENCY FOR DEFENSE DEVELOPMENT, Daejeon (KR)
Filed on Sep. 7, 2022, as Appl. No. 17/939,334.
Claims priority of application No. 10-2022-0054713 (KR), filed on May 3, 2022.
Prior Publication US 2023/0358611 A1, Nov. 9, 2023
Int. Cl. G01J 3/44 (2006.01); G01J 3/02 (2006.01); G01J 3/18 (2006.01); G01N 21/65 (2006.01)
CPC G01J 3/4412 (2013.01) [G01J 3/0208 (2013.01); G01J 3/18 (2013.01); G01N 21/65 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A spectroscopy system, comprising:
a light source that generates light having a plurality of wavelengths;
a light transmitter that transmits the light from the light source to a target analyte;
a light receiver that receives Raman-scattered light scattered from the target analyte;
a multi-wavelength spectroscopy assembly that acquires a spectrum by splitting the Raman-scattered light transmitted by the light receiver, the multi-wavelength spectroscopy assembly including only a single diffraction grating that diffracts the Raman-scattered light and only a single concave mirror that focuses the Raman-scattered light;
a wavelength separator disposed between the light receiver and the multi-wavelength spectroscopy assembly that separates the Raman-scattered light for each wavelength region; and
a light transmitting device that transmits the Raman-scattered light separated by the wavelength separator to the multi-wavelength spectroscopy assembly,
wherein the single diffraction grating of the multi-wavelength spectroscopy assembly includes only a single penetration hole that permits the Raman-scattered light that is transmitted by the light transmitting device to pass through the diffraction grating, and
wherein the penetration hole of the diffraction grating formed to a width becoming narrower from one end to the other end.