Regulation and control device of excitation light source

Abstract

The invention provides a regulation and control device of an excitation light source. The device comprises an excitation light module which is fixed at a preset position. Switching of a plurality of LED lamps which generate excitation light is performed through a switch so as to generate the excitation light with different wavelengths; the excitation light module comprises a PCB and is used for bearing an LED light source, the LED light source is arranged on one side of the PCB, the LED light source comprises a plurality of LED lamps, an optical filter is arranged at the front end of each LEDlamp, and exciting light with a preset wavelength is obtained through filtering of the optical filter after the LED lamps emit light; and an optical fiber coupler is arranged at the output end of a light beam of each optical filter, each optical fiber coupler is coupled with an optical fiber, exciting light with the corresponding wavelength is coupled into the optical fiber through the optical fiber coupler and transmitted through the optical fiber, and an optical fiber beam combiner is included and is used for arranging and combining the optical fibers into a whole in a preset mode. An optical fiber collimator is further arranged at the output end of the optical fiber beam combiner and used for converting the exciting light in the optical fiber into collimated light.

Description

technical field [0001] The invention relates to the technical field of nucleic acid amplification instrument detection, in particular to a control device for an excitation light source. Background technique [0002] In recent years, fluorescence analysis technology has been widely used in fluorescence microscopy imaging and observation, and flow fluorescence detection and analysis. The required fluorescence spectrophotometer includes an excitation light device that inputs excitation energy, that is, an excitation light source. At present, fluorescence microscopy imaging systems generally use mercury lamps, xenon lamps and other high-energy, short-life full-band light sources, which are filtered by different filters to obtain excitation light sources of the corresponding required bands. However, the optical path system of this kind of excitation light source is complicated, the energy consumption of the light source is high, the efficiency loss is large, and the service life ...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, some fluorescence detection achieves the purpose of multi-light path detection by adding a rotatable excitation light filter color wheel and an emission light color wheel in the optical path, but the setting of the above structure increases power consumption, and, in the fluorescence detection process However, due to the mechanical rotation, the problem of misalignment or misalignment of light occurs, and the instrument is bulky and clumsy, so it is not easy to carry

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