Light source control device and method

A technology of light source control and equipment, applied in the field of spectral analysis, can solve the problems of poor uniformity of the outgoing light, the spectrometer cannot collect the outgoing light, and the accuracy of spectral analysis is reduced, and the effect of improving the accuracy is achieved.

Active Publication Date: 2021-10-01
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

If the outgoing light is very weak, the spectrometer cannot collect the outgoing light; if the outgoing light is strong, the spectrometer collecting the outgoing light will be saturated
In addition, if a light source with a fixed spot is used to irradiate the substance to be measured, if there are substances with non-uniform absorption in the substance to be measured, the uniformity of the emitted light will be poor, thereby reducing the accuracy of spectral analysis.

Method used

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  • Light source control device and method
  • Light source control device and method
  • Light source control device and method

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Embodiment Construction

[0040] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0041] figure 1 is a schematic diagram of the composition and structure of the light source control device according to the embodiment of the present invention; figure 1 shown, including:

[0042] Light source assembly 11, shading tube 12, third lens 13, fourth lens 14, spectroscopic assembly 15, image acquisition assembly 16, processor 17; said light source assembly 11 includes: first lens 110, second lens 111, diaphragm 112, the first lens 110, the second lens 111, and the aperture 112 are arranged in the light-shielding cylinder 12; wherein,

[0043] The light source component 11 is used to convert the emitting light source into a point light source;

[0044] Here, the emitting light source may be a broad-spectrum halogen tungsten lamp ...

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Abstract

The invention discloses a light source control device and method, comprising a light source assembly, a shading cylinder, a third lens, a fourth lens, a light splitting assembly, an image acquisition assembly and a processor; the light source assembly is arranged in the shading cylinder; the The third lens is used to convert the light emitted by the point light source into parallel light; the fourth lens is used to transmit the parallel light to the light splitting component; the light splitting component is used to divide the parallel light into the first light beam and The second light beam transmits the first light beam to the target object, and reflects the second light beam to the image acquisition component; the image acquisition component is used to collect the second light beam to obtain an image; the processing The device is used to determine the light parameters of the emitting light source; based on the light parameters of the emitting light source, the light parameters of the first light beam transmitted to the target object are adjusted. The invention can adjust the light intensity and / or spot size transmitted to the target object, so that the light source is more suitable for different measurement environments.

Description

technical field [0001] The invention relates to spectrum analysis technology, in particular to a light source control device and method. Background technique [0002] When the spectroscopic method is used for spectral analysis of the substance to be measured, if a light source with a fixed light intensity is used to irradiate the substance to be measured, it is often easy to make the outgoing light passing through the substance to be measured either very weak or very strong. If the outgoing light is very weak, the spectrometer cannot collect the outgoing light; if the outgoing light is strong, the spectrometer collecting the outgoing light will be saturated. In addition, if a light source with a fixed spot is used to irradiate the substance to be tested, if there are substances with non-uniform absorption in the substance to be tested, the uniformity of the emitted light will be poor, thereby reducing the accuracy of spectral analysis. [0003] Therefore, it is urgent to fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/25G01N21/01
CPCG01N21/01G01N21/25G01N21/255G01N2021/0112
Inventor 林凌侯星卫张梦秋李刚
Owner TIANJIN UNIV
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