Multi-spectrum image collecting system

An image acquisition system and multi-spectral technology, applied in the field of image acquisition systems, can solve the problems of inability to realize multi-spectral imaging system, inability to detect the position of heat source sensitively, and difficulty in implementation, so as to increase versatility, reduce volume and save cost Effect

Active Publication Date: 2013-11-27
NANJING UNIV 5D TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the near-infrared band of 0.76-1.0 μm and the ultraviolet band of 0.30-0.38 μm often cannot meet the actual needs when imaging, because the imaging of the near-infrared band cannot detect the position of the heat source sensitively.
And the 0.30-0.38μm ultraviolet imaging is greatly affected by the sun background, which is not conducive to use in the case of strong sunlight

Method used

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Examples

Experimental program
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Example Embodiment

[0031] Example 1

[0032] figure 1 Shown is a solar-blind ultraviolet, thermal infrared and visible light multi-spectral imaging system of the present invention. In order to reduce the volume of the system and improve the coaxial accuracy, the multiple spectrum segments of the present invention share the same lens group, during which the beam splitter is used to make the target beams enter each imaging device separately. The use of this three-channel optical path not only has low cost, but also has no parallax in the resulting image, which facilitates subsequent image synthesis. The imaging bands of each imaging module are as follows: thermal infrared band: 7.5μm-14μm; solar blind ultraviolet band: 190nm-285nm; visible light band: 400nm-700nm.

[0033] Such as figure 1 As shown, the multi-spectral image acquisition system is composed of a first beam splitter 1, a second beam splitter 2, a mirror 3, a thermal infrared band imaging system 4, a solar blind ultraviolet band imaging s...

Example Embodiment

[0042] Example 2: Figure 4 Shown is another solar-blind ultraviolet, thermal infrared and visible light multispectral imaging system of the present invention.

[0043] In order to reduce the volume of the system, improve the coaxial accuracy, and reduce the product cost, the same lens group is still shared in this embodiment. The imaging bands of the imaging modules in this embodiment are as follows: thermal infrared band: 7.5 μm-14 μm; solar-blind ultraviolet band: 190 nm-285 nm; visible light band: 400 nm-700 nm.

[0044] Figure 4 The shown multi-spectral image acquisition system mainly includes the following components: a first beam splitter 1, a second beam splitter 2, a thermal infrared imaging system 4, an optical lens 7, a solar-blind ultraviolet imaging system 5, and a visible light imaging system 6.

[0045] After the target beam passes through the first beam splitter 1, a part of the beam enters the thermal infrared imaging system 4 through transmission, and a part is r...

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Abstract

Disclosed is a multi-spectrum image collecting system. The multi-spectrum image collecting system comprises a first spectroscope, a second spectroscope, a thermal infrared wave band imaging system, a solar-blind ultraviolet wave band imaging system and a visible light wave band imaging system. The imaging wave band of the thermal infrared wave band imaging system ranges from 7.5microns to 14microns, the imaging wave band of the solar-blind ultraviolet wave band imaging system ranges from 190nm to 285nm, and the imaging wave band of the visible light wave band imaging system ranges from 400nm to 700nm; the included angle between the first spectroscope and an optical axis is 45 degrees, light, with wave lengths ranging from 7.5microns to 14microns, in target light beams is transmitted to the thermal infrared wave band imaging system, and light, with a solar-blind ultraviolet wave band in the target light beams and light, with a visible light wave band, in the target light beams are transmitted to the second spectroscope. The first spectroscope and the second spectroscope are parallel, visible light, with wavelengths ranging from 400nm to 700nm, in the rest of light beams in the target light beams is transmitted or reflected to the visible light wave band imaging system, and solar-blind ultraviolet light, with wave lengths ranging from 190nm to 285nm, in the light beams is reflected or transmitted to the solar-blind ultraviolet wave band imaging system.

Description

technical field [0001] The invention relates to an image acquisition system, in particular to a multi-spectrum image acquisition system based on solar-blind ultraviolet, thermal infrared and visible light / twilight light. Background technique [0002] At present, monitoring work in many fields is based on optical means. Based on optical means, it can detect a wide range of wavelengths from ultraviolet to visible light to infrared bands, which can be used to monitor a variety of problems. [0003] Single-wavelength imaging technologies in the prior art, such as visible light imaging technology, low-light imaging technology, thermal infrared imaging technology, solar-blind ultraviolet imaging technology, etc., have their own special application directions and have irreplaceable advantages of other imaging methods. Among them, solar-blind ultraviolet imaging technology, as an emerging high-tech technology, can image solar-blind ultraviolet light with a wavelength range of 190nm...

Claims

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Application Information

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IPC IPC(8): G02B27/10G02B27/00G01J3/28
Inventor 李想孔夏丽朱曦
Owner NANJING UNIV 5D TECH
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