Three-wire array CCD push-scanning type polarization imaging detection device

Abstract

The invention is a three-line array CCD scanning-mode polarizing, imaging and detecting device, and in its light path, optical lens group, filtering plate, parallel polarization detectors at the angles of 0 deg., 60 deg. and 120 deg., and three-line array CCD detectors are installed in turn, where the polarization detectors are polarizing plates pasted on the surface of the CCD detectors or three-column picture elements coated on the surface of the CCD detectors, corresponding to the CCD detectors. The signals of the CCD detectors are inputted into a data collecting, transmitting and imaging system. The invention adopts a line-array scanning and imaging mode, and only need use a public optical imaging system, thus compact, small-sized, light and low-power, and suitable for a moving platform whose load space is limited to work; at the same time, because of less energy losses and relatively higher SNR, it is suitable to carry out polarization detection on the object to obtain polarization data in a further distance and at a larger height.

Description

technical field [0001] The invention belongs to the technical field of photoelectric detection, and in particular relates to a CCD polarization imaging detection device. Background technique [0002] So far, the instruments used for polarization detection of ground targets are mainly area array CCD polarization detection devices. The instrument makes the light pass through three sets of optical systems, and then through the 0°, 60°, 120° three-directional polarizer, to the area array CCD detector, the optical signal is converted into an electrical signal, and the polarized image of the target is output in the electronic system. This kind of detector is a frame-type polarization imaging detection device, which has a complex structure and a large volume. In addition, the data transmission rate is relatively slow. [0003] The other is also an area array CCD polarization detection device. It places a beam splitting prism in the optical system, divides a beam of light into thr...

AI Technical Summary

Problems solved by technology

The advantage of this instrument is that there is no problem of pixel registration, but when it divides a beam of light from the target into three, the energy is also divided into three, and the signal-to-noise ratio of the system is affected; at the same time, this detection device The structure is too large, which limits its engineering application

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