Swing polarizer type polarization imaging measuring device and method

[0033] Example one

[0034] Such as figure 1 As shown, a swing polarizer-type polarization imaging measurement device provided by an embodiment of the present invention includes a lens module 1, a polarization module 2, a detection module 3, and a control module ( figure 1 Not shown in). The lens module 1 includes an optical lens for imaging a target scene, and the detection module 3 includes a detector for receiving light emitted by the optical lens, and the central axis of the detector coincides with the central axis of the optical lens to receive light. Preferably, the lens module 1 further includes a lens fixing seat for setting an optical lens, and the detection module 3 further includes a detector fixing seat for setting a detector. An adjustable lens is preferably provided between the lens fixing seat and the detector fixing seat. Slide rail, used to locate the relative position of the detector and the optical lens.

[0035] Such as figure 1 with figure 2 As shown, the polari

[0048] Example two

[0049] With regard to the above-mentioned swinging polarizer type polarization imaging measurement device, the present invention also provides a swinging polarizer type polarization imaging measurement method, which uses the swinging polarizer type polarization imaging measurement device as described in any one of the above to perform polarization imaging measurement. Including the following steps:

[0050] S1. Deploy and calibrate a swing polarizer-type polarization imaging measurement device on one side of the target scene.

[0051] Among them, the calibration includes adjusting the relative positions of the lens module 1, the polarization module 2, and the detection module 3 so that the central axis of the detector coincides with the central axis of the optical lens, and any polarizer 23 can be rotated to make its own central axis and the detection When the central axes of the polarizer and the optical lens coincide, and the central axes of the polarizer 23, the

[0067] Example three

[0068] Such as Figure 1 to Figure 4 As shown, the third embodiment is basically the same as the first embodiment, and the similarities will not be repeated here. The differences are:

[0069] The swing polarizer type polarization imaging measurement device uses three quartz wire grid polarizers with the same specifications, the effective diameter is 25.4mm, the effective wavelength range is visible to shortwave infrared, that is, 350~2500nm, the transmittance is greater than 80%, and the extinction The ratio is 1000:1. After the quartz wire grid polarizer is clamped on the balance wheel by the pressure ring, the difference between the effective clear aperture and the effective diameter of the polarizer is no more than 4mm. The minimum value of the number of cycles n of reciprocating oscillation is 25. CCD detectors are used to collect radiation intensity images.

[0070] During operation, the polarization module and the detection module keep working synchronou