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Quick-speed spectrophotometer

A spectrophotometer and fast technology, which is applied in the field of color measurement instruments, can solve the problems affecting the measurement accuracy of the light signal of the fast spectrophotometer and low measurement accuracy, and achieve the effect of improving the signal-to-noise ratio, enhancing the light energy, and improving the accuracy

Inactive Publication Date: 2008-01-09
邱迦易
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As shown in Figure 2, when the light source passes through the light-condensing coupling system, a circular spot will be formed and projected on the light-entry slit. Since the width of the light-entrance slit is small, only a small part of the light spot passes through the light-entrance slit Entering the spectrum analyzer means that the light energy entering the monochromator is very small, which will inevitably affect the measurement accuracy of the light signal of the fast spectrophotometer, and the measurement accuracy is relatively low

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Embodiment Construction

[0012] As shown in Figures 4 and 5, a specific embodiment of the present invention is a fast spectrophotometer, comprising a light source, a light-collecting coupling system 1, a light entrance slit 2, a spectrum analyzer 3, and a detector system. One side of the light incident end 21 of the slit 2 forms a mold cavity 5, and the cylindrical lens 4 is vertically arranged in the mold cavity 5, and is aligned with the light incident end 21 of the light entrance slit 2, and the other end of the cylindrical lens 4 is connected to the light coupling coupling Output 11 of system 1.

[0013] As shown in Figure 3, the present invention utilizes the light-gathering characteristics of the cylindrical lens 4. When the light source is converged by the light-gathering coupling system 1, it reaches the cylindrical lens 4, and then gathers light through the cylindrical lens 4 again to form a linear spot close to the incoming light. The slit 2, compared with the circular light spot formed by t...

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Abstract

The invention relates to a fast spectrophotometer, including light source, light gather coupling system, light inlet-slit, spectral analysis, detection system, between the light gather coupling system and the light inlet slit installs a cylindrical lens. The invention used the characteristic of cylindrical lens, after the light gathered through the light gather coupling system, reached to the cylindrical lens, once again through the cylindrical lens focus, together into a linear spot close to the light inlet slit, compared with the circle spot of the existing technology convergence, the linear spot gathered more light, the more light enter into the slit, the light enhanced and increased the signal noise ratio of the equipment, be beneficial to increase the accuracy of the weak spectral signal detection.

Description

technical field [0001] The invention relates to a color measuring instrument, in particular to a fast spectrophotometer. Background technique [0002] Fast spectrophotometer is one of the commonly used analytical instruments in physical and chemical laboratories. It is widely used in paper pulping, textile printing and dyeing, paint ink, medicine and health, clinical testing, biochemistry, petrochemical, environmental testing and quality control and other departments. As shown in Figure 1, a general fast spectrophotometer is composed of a light source, a light-condensing coupling system, a light-incoming slit, a spectrum analyzer, and a detector system. Couple the system, and place the object to be measured at the measuring port of the integrating sphere. The light reflected from the sample illuminated by the pulsed xenon lamp is aggregated to the light entrance slit of the monochromator through the condenser coupling system. The light entrance slit is defined by the The sl...

Claims

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Application Information

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IPC IPC(8): G01J3/46G01N21/25
Inventor 邱迦易
Owner 邱迦易