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Optical system of spectrophotometer for biochemical analyzer

A technology of biochemical analyzer and spectrophotometer, which is applied in the fields of biomedical measurement and medical equipment, can solve problems such as reduction, achieve the effects of reducing stray light, improving stability, and overcoming the problem of stray light in the optical path

Inactive Publication Date: 2010-10-27
JIANGXI SCI & TECH NORMAL UNIV
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Problems solved by technology

[0004] The object of the present invention is to provide a simple in structure, high stability, the problem such as the reduction of instrument performance that the existence of stray light causes in the spectrophotometer system of biochemical analyzer spectrophotometer in the above-mentioned prior art and improve instrument incident luminous flux efficiency etc. Optical system based on volume holographic transmission grating with high efficiency and good wavelength repeatability

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  • Optical system of spectrophotometer for biochemical analyzer
  • Optical system of spectrophotometer for biochemical analyzer
  • Optical system of spectrophotometer for biochemical analyzer

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] The principle schematic diagram of the optical system of the present invention is as figure 1 As shown, it is divided into an illumination optical path part 100, a connecting part 300, a splitting optical path part 200, and a signal processing part 400. The illuminating optical path part 100 and the splitting optical path part 200 are connected through the connecting part 300, and the splitting optical path part 200 finally converts the light into an electrical signal. transmitted to the signal processing section 400.

[0018] Along the direction of light propagation, the illuminating light path part 100 is followed by the light source 101, the first collimating lens 102, the cuvette 103 and the focusing lens 104; the optical fiber 300 connects the illuminating light path part 100 and the splitting light path part 200; The second collimating len...

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Abstract

The invention provides an optical system of a spectrophotometer for a fully-automatic biochemical analyzer. The optical system comprises a lighting light path part and a splitting light path part, wherein the lighting light path sequentially comprises a light source, a first collimating lens, a cuvette and a first focusing lens along a light traveling direction; the lighting light path is connected with the splitting light path by an optical fiber; the splitting light path sequentially comprises a second collimating lens, a volume holographic transmission type grating, a second focusing lens and a silicon photodiode array; the silicon photodiode array converts the received light into a corresponding electric signal and outputs the electric signal for data analysis; and the volume holographic transmission type grating is a singlet volume holographic transmission type grating synthesized by high-refractivity modulation photo-luminescent polymer. The optical system has the advantages of simple structure, high stability, high efficiency and high wavelength repetitiveness.

Description

technical field [0001] The invention relates to the technical fields of biomedical measurement and medical equipment, in particular to an optical measurement system for a fully automatic biochemical analyzer. Background technique [0002] Automatic biochemical analyzer is a medical analysis instrument used to detect various biochemical indicators in human body fluids (blood, urine, etc.), it can quickly and accurately provide relevant data for doctors and biochemical testing personnel It plays an important role in the detection of biochemical indicators. The spectrophotometer is a crucial component in the automatic biochemical analyzer, and the performance of its spectroscopic system directly affects the performance of the biochemical analyzer. Among the many spectroscopic systems, according to the order of spectroscopic separation, there can be pre-split and post-split systems. According to the different dispersion devices used, there can be prism, grating and filter-type...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N35/00G02B27/10G02B5/32
Inventor 刘国栋任重何翠群黄振
Owner JIANGXI SCI & TECH NORMAL UNIV
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