Programmable multi-spectral optical filter system with soft bottom lining

Abstract

The invention provides a programmable multi-spectral optical filter system with a soft bottom lining, comprising a filter film device, an encoder, a code reader and module adaptive devices; the filter film device comprises a motor, a filter film and rotary wheel shafts arranged at the two ends of the filter film, the two ends of the filter film are respectively fixed on the corresponding rotary wheel shafts, the wheel shafts are driven by the motor to rotate so as to unfold or reel the filter film; and the module adaptive devices are arranged on the two sides of the filter film device, the encoder is arranged on the support bottom lining, and the coder reader is arranged on the position corresponding to the encoder. According to the invention, the programmable encoder is adopted to encode the position of the optical filter, the coder reader can read the encoder, thus the optical filter can be positioned; and a required optical filter is selected from the programmable optical filter system containing multiple optical filters, and is arranged in an optical path, so that the purpose of selectively filtering optical signals is achieved.

Description

technical field [0001] The invention relates to the technical field of multispectral imaging for machines, in particular to a programmable multispectral soft substrate filter system. Background technique [0002] At present, the multi-spectral photography and other optical imaging instruments used in the market are all shooting and imaging in a certain spectral range. These imaging instruments can only obtain one image of the target object for each exposure. If you want to obtain multiple images of different spectra For the image, the filter should be adjusted repeatedly through the spectral filtering method or the mechanical wheel tuning filter method. The use of spectroscopic filtering requires a huge space for spectroscopic devices to obtain images of different wavelengths, which not only results in a large volume and weight of the instrument itself, but also increases the cost of the instrument itself due to the addition of spectroscopic devices. The mechanical wheel tu...

AI Technical Summary

Problems solved by technology

The use of spectroscopic filtering requires a huge space for spectroscopic devices to obtain images of different wavelengths, which not only results in a large volume and weight of the instrument itself, but also increases the cost of the instrument itself due to the addition of spectroscopic devices.

The mechanical wheel tuning filter method needs to continuously rotate the filter wheel to obtain multiple images. The mechanical movement of the rotating filter wheel and the relative movement of man-made or measured objects will cause the displacement of the image and the measured object and image distortion.

The liquid crystal tunable filter and the acousto-optic tunable filter method reduce the disadvantages of mechanical tuning, but their tuning filter components are expensive and unfavorable for general promotion and use

Especially in the application of detection of weak biological information, such as the detection of weak information such as biomedical observation of bioluminescent information, liquid crystal tunable filters and acousto-optic tunable filters have replaced spectroscopic filtering and mechanical wheel tuning. However, they all have the problems of image shift in wavelength tuning, complex instrument structure, and high system cost, which is not conducive to general promotion and use.

[0003] Therefore, the existing optical filter has the problem that the target to be measured is shifted and the positioning is difficult

Images