Optical detection system applicable to absorbed light detection and fluorescence detection

Abstract

The invention discloses an optical detection system applicable to absorbed light detection and fluorescence detection, which comprises a cold light source, a first entrance slit, a second entrance slit, a third entrance slit, a first converging lens, a second converging lens, an optical filter converter, a photoelectric detector, a halogen lamp and a first optical filter. The cold light source, the first entrance slit, the second entrance slit, the first converging lens, the third entrance slit and the photoelectric detector are arranged on the X-axis coaxially sequentially, a detection tube holding to-be-detected substance is arranged between the first entrance slit and the second entrance slit, the optical filter converter provided with a second optical filter and a third optical filter is arranged between the first converging lens and the third entrance slit, and the halogen lamp, the first optical filter and the second converging lens are sequentially arranged on the Y-axis coaxially. The optical detection system can be used for absorbed light detection and fluorescence detection simultaneously, the detection tube is fixed during the absorbed light detection and fluorescence detection, and accordingly detection results of the optical detection system are high in accuracy.

Description

technical field [0001] The invention relates to an optical detection system, in particular to an optical detection system which is used in an automatic blood analyzer and can be used for light absorption detection and fluorescence detection. Background technique [0002] At present, the dry blood cell analyzer generally adopts the centrifugal principle when detecting the content of red blood cells, white blood cells, and platelets in human blood, that is, adding the human blood to be tested into the detection tube containing the corresponding color reagent and fluorescent substance. The detection tube is centrifuged, and the different material components in the blood are layered, and they are distributed in the corresponding areas in the detection tube. Different areas display different colors, so that the corresponding detection methods are detected by absorbing light detection methods and fluorescence detection methods. Substances were quantified. [0003] However, in act...

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Problems solved by technology

[0003] However, in actual implementation, it is found that at present, there is no equipment that can simultaneously detect absorption light and fluorescence, and each of absorption light detection and fluorescence detection requires a separate device to perform, and the existing methods for detecting absorption light or fluorescence The equipment is extremely complicated. In addition, for the same detection tube, after the absorption light detection is completed, it needs to be moved to the equipment for fluorescence detection to perform detection, and the detection tube will cause positioning errors if it is moved back and forth. , affects the accuracy of the detection results, and it takes a certain amount of time to move, so the absorption light detection and the fluorescence detection cannot be carried out at the same time, and it is impossible to detect each substance to be detected at the same time at the same time, and it is impossible to provide researchers with various substances to be detected Status information displayed at the same time

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