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Rotating mirror assembly of a swing-broom spectrometer

A spectrometer and rotating mirror technology, which is applied in the field of spectral remote sensing imaging, can solve the problems of not achieving the ideal effect, troublesome manufacturing process, high cost, etc., and achieve the effects of improving sensitivity and practicability, improving precision, and facilitating processing

Active Publication Date: 2017-09-19
SICHUAN DUALIX SPECTRAL IMAGING TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The rotating mirror assembly of the existing swing-broom imaging spectrometer still has a limited field of view and does not achieve the desired effect. The components are expensive, the structure is complicated, the manufacturing process is very troublesome, the cost is extremely high, and it is easy to damage

Method used

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  • Rotating mirror assembly of a swing-broom spectrometer
  • Rotating mirror assembly of a swing-broom spectrometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like figure 1 , figure 2 The rotating mirror assembly of a swing-sweep spectrometer shown includes a rotating mirror motor 1, a rotating mirror mechanism 2, a worm gear mechanism 3 and a reflection mechanism 4; the mirror rotating motor 1 is connected to the mirror rotating mechanism through a worm gear mechanism 3 2; the mirror rotating mechanism 2 includes a scanning rotating mirror 21, and the reflecting mechanism 4 includes a reflecting mirror, and the rotation axis of the scanning rotating mirror 21 is parallel to the reflecting mirror; 45-degree angle. The rotating mirror motor 1 can drive the rotating mirror mechanism 2 to rotate around the rotating shaft; the image information of the target object is captured by the rotating mirror mechanism 2 through the viewing window of the swing-sweep spectrometer, because the rotating shaft of the rotating mirror mechanism 2 and the reflection mechanism The reflectors of 4 are kept parallel, so the rotating mirror mechan...

Embodiment 2

[0029] This embodiment has been further improved on the basis of embodiment 1, as figure 1 , figure 2 As shown in the rotating mirror assembly of a swing-sweep spectrometer, the worm gear mechanism 3 includes a worm wheel 31 and a worm screw 32; the worm screw 32 is installed inside the worm screw frame 33, and the worm screw 32 is provided with a helical tooth 34; the worm wheel 31 passes through the worm screw The adapter wheel 35 is connected with the helical gear 34; the mirror-rotating motor 1 drives the worm 32 to rotate through the connector, and the worm 32 drives the helical gear 34 to rotate, and the helical gear 34 and the worm adapter wheel 35 are driven by meshing. Thereby driving the rotation of the worm adapter wheel 35, the worm adapter wheel 35 is connected with the worm wheel 31, and the rotation of the worm adapter wheel 35 drives the rotation of the worm wheel 31, thereby completing the transmission between the worm screw 32 and the worm wheel 31. This em...

Embodiment 3

[0031] This embodiment has been further improved on the basis of embodiment 2, such as figure 1 , figure 2 The rotating mirror assembly of a swing-sweep spectrometer is shown, the bearing of its rotating mirror motor 1 is connected to the first pulley 11; the worm 32 is connected to the transmission shaft 51 through the elastic coupling 5, and the transmission shaft 51 is connected to the second pulley 52 ; the second pulley 52 and the first pulley 11 are driven by the belt 6 . The rotating motor 1 drives the first pulley 11 to rotate through the bearing, the first pulley 11 drives the second pulley 52 to rotate through the belt 6 , and the second pulley 52 drives the rotation of the worm 32 through the elastic coupling 5 . The first pulley 11 and the second pulley 52 of the present embodiment are both toothed pulleys, and the synchronous toothed pulley transmission has avoided problems such as vibrations caused by hard links. When using mechanical hard links, due to the rot...

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Abstract

The invention discloses a polygon mirror assembly of a swing-scanning spectrometer, comprising a polygon mirror motor, a polygon mirror mechanism, a worm-gear mechanism, and a reflecting mechanism. The polygon mirror motor is connected with the polygon mirror mechanism through the worm-gear mechanism. The polygon mirror mechanism includes a scanning polygon mirror, the reflecting mechanism includes a reflecting mirror, and the rotating shaft of the scanning polygon mirror is parallel to the reflecting mirror. The mirror surface of the reflecting mirror and the lens plane of the swing-scanning spectrometer form an angle of 45 degrees. The beneficial effects are as follows: the polygon mirror assembly is simple in structure and easy to process; the components are connected and fixed by metal materials, so that the polygon mirror assembly has impact resistance, the service life of the polygon mirror assembly is prolonged, and manpower and materials are saved; and the scanning polygon mirror can rotate 360 degrees around the rotating shaft, which increases the field of view of the swing-scanning spectrometer to the maximum and is advantageous to object capture by the swing-scanning spectrometer.

Description

technical field [0001] The invention relates to the technical field of spectral remote sensing imaging, in particular to a rotating mirror assembly of a swing-broom spectrometer. Background technique [0002] The development of remote sensing technology has gone through panchromatic (black and white), color photography, and multi-spectral scanning imaging stages. The imaging spectrum technology that appeared in the early 1980s brought optical remote sensing into a new stage—the stage of hyperspectral remote sensing. The so-called hyperspectral remote sensing refers to the remote sensing science and technology with high spectral resolution. The imaging spectrometer used in the imaging spectroscopy technology can acquire many very narrow and continuous spectrum in the ultraviolet, visible, near-infrared and short-wave infrared regions of the electromagnetic spectrum. image data. Imaging spectrometers provide each pixel with dozens to hundreds of narrow-band spectral informati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/02
Inventor 陈兴海曹佳宝刘业林
Owner SICHUAN DUALIX SPECTRAL IMAGING TECHNOLOGY CO LTD
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