US 12,276,547 B2
Wide-field imaging and hyperspectral collaborative early warning system and method
Haiyan Luo, Hefei (CN); Wei Xiong, Hefei (CN); Zhiwei Li, Hefei (CN); Wei Jin, Hefei (CN); Dekang Wang, Hefei (CN); and Qiansheng Wang, Hefei (CN)
Assigned to HEFEI INSTITUTES OF PHYSICAL SCIENCE, CHINESE ACADEMY OF SCIENCES, Hefei (CN)
Appl. No. 18/022,276
Filed by HEFEI INSTITUTES OF PHYSICAL SCIENCE, CHINESE ACADEMY OF SCIENCES, Hefei (CN)
PCT Filed Jul. 4, 2022, PCT No. PCT/CN2022/103591
§ 371(c)(1), (2) Date Feb. 21, 2023,
PCT Pub. No. WO2023/005616, PCT Pub. Date Feb. 2, 2023.
Claims priority of application No. 202110856503.9 (CN), filed on Jul. 28, 2021.
Prior Publication US 2023/0324225 A1, Oct. 12, 2023
Int. Cl. G01J 3/12 (2006.01); G01J 3/28 (2006.01); G01J 3/45 (2006.01)
CPC G01J 3/12 (2013.01) [G01J 3/2823 (2013.01); G01J 3/45 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A wide-field imaging and hyperspectral collaborative early warning system, comprising:
a primary imaging system, a digital micromirror array, a first collimation system, a second collimation system, a first reflector, a second reflector, a wide-field imaging optical filter, a narrow-band optical filter, a wide-field imager and a hyperspectral interferometer, wherein
the primary imaging system and the digital micromirror array are arranged in a direction perpendicular to an incident direction of a measured target; the first collimation system, the first reflector-, the wide-field imaging optical filter and the wide-field imager are arranged on first side of a symmetry axis, the symmetry axis being an incidence direction of the measured target, and the second collimation system, the second reflector, the narrow-band optical filter and the hyperspectral interferometer are arranged on a second side of the symmetry axis, wherein
the hyperspectral interferometer comprises a beam splitter, an optical path difference modulation element, an interferometer imaging lens set and an interferometer detector;
the beam splitter projects an incident light to the optical path difference modulation element for a modulation to generate interference fringes, and the interference fringes are imaged on the interferometer detector according to a set scaling ratio through the interferometer imaging lens set.