Monochromator for microplate readers

Abstract

The invention relates to the field of optical colorimetric analysis, in particular to a monochromator for microplate readers. The monochromator comprises a plurality of monochromatic light assemblies and light guide fiber components. The light guide fiber components focus monochromatic light generated by all the monochromatic light assemblies to colorimetric cups corresponding to the microplate readers respectively through different optical paths, and optical signals are converted into electrical signals through a photocell. The light guide fiber components comprise multi-channel optical fiber bundles and optical focus mechanisms. The input ends of the multi-channel optical fiber bundles receive the monochromatic light output by the monochromatic light assemblies, and the optical focus mechanisms are located at the output ends of the multi-channel optical fiber bundles and are focused to the centers of the colorimetric cups of the corresponding channels. By means of the monochromator, two to twelve bundles of monochromatic light of any input wave length and even in energy distribution can be obtained at any time, the response time is short, and no mechanical movement mechanism is needed.

Description

technical field [0001] The invention relates to a technique in the field of optical colorimetric analysis, in particular to a monochromator for a microplate reader. Background technique [0002] In the prior art, there are two types of monochromators used in microplate readers. One is a thermal light source such as a halogen lamp as a light source, which is converted into monochromatic light by several color filters, and shoots to the end face of the 1-8 optical fiber. light on the photoelectric converter, such as figure 1 shown. Most of the imported or domestic microplate readers currently used in China have this structure. The disadvantage of this type of device is that the whole machine has high power consumption, high heat generation, and complex structure. Most of the energy distribution of the halogen lamp is near-infrared and infrared light above 800nm, and the background light intensity is large, which increases the requirements for the filter. The wavelength nee...

AI Technical Summary

Problems solved by technology

There are many overall parts and complex structure, which cannot meet the increasingly rapid detection requirements of multi-wavelength detection in colorimetric analysis

At the same time, since the detection device does not contain a spectroscopic system and an energy control system, the uniformity of light energy distribution and the flexibility of control cannot be guaranteed.

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