Patent ID: 11971303
Assignee: WUHAN UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. The quadrilateral common-path Fourier Transform spectroscopy imaging method according to claim 8, comprises the following steps:
Step 1: a target light becomes a parallel light after passing through a pre-module and is incident to the quadrilateral common-path interferometer;
Step 2: the parallel light is divided into a first transmitted beam and a first reflected beam by a semi-transparent semi-reflective beam splitter; the first transmitted beam returns to the semi-transparent semi-reflective beam splitter again after reflecting from a first plane mirror, a second plane mirror, and a third plane mirror and passing through the first optical path adjustment module, and is divided into a second transmitted beam and a second reflected beam by the semi-transparent semi-reflective beam splitter; the first reflected beam reflects from the first plane mirror, the second plane mirror, and the third plane mirror and passes through the second optical path adjustment module and returns again to the semi-translucent semi-reflective beam splitter, and is divided into a third transmitted beam and a third reflected beam by the semi-transparent semi-reflective beam splitter; the second reflected beam and the third transmitted beam are emitted in a first direction, and the second transmitted beam and the third reflected beam are emitted in a second direction;
Step 3: the beam exited by the quadrilateral common-path interferometer is formed into interference through a convergence module, and imaged to a detection acquisition module;
Step 4: through the detection acquisition module to sample and collect interference fringe signals at different moments, and convert into electrical signals to obtain a detection information;
Step 5: a spectral restoration is carried out according to the detection information through a signal processing module to obtain a spectral information.