Molecular sensor

Abstract

The invention provides a molecular sensor.The molecular sensor comprises an illumination module and a spectrum module, and the spectrum module sequentially comprises a preliminary lens array, a filter array, a secondary lens array, a micropore array, a support structure array and a sensor array, wherein the preliminary lens array is used for diffusing incident light from a sample; the filter array is used for changing the diffused light into multiple independent light paths; the secondary lens array is used for conducting Fourier transformation on the incident light from the filter array; the micropore array comprises multiple micropores; the support structure array internally contains multiple support structures and multiple light transmission channels which are used for inhibiting crosstalk among different light channels and made of non-light-permeable materials.The molecular sensor has a straight optical axis and a short optical distance, and by means of the straight optical axis and the short optical distance, a molecular sensor product can be smaller in dimension, lower in cost and capable of being integrated into consuming type electronic equipment such as cell phones; in addition, sufficient flexibility and resolution ratio can be achieved to obtain spectrums under multiple frequency band wave lengths of the sample.

Description

technical field [0001] The invention relates to the fields of spectrum detection and infrared identification, in particular to a molecular sensor that can analyze the spectrum of substances. Background technique [0002] Molecular sensors can be used in various ways. For example, molecular sensors can be used to detect product defects in industrial production, satellite and aerospace imaging, laboratory research, etc. However, the molecular sensor devices used in these fields are too bulky and too expensive for the consumer market. [0003] The molecular sensor detects spectral radiation from the sample and processes the obtained spectral signal, and the obtained information results include the spectral, physical and chemical information of the sample. The device also typically includes optical elements that discriminate the spectrum to separate the wavelengths of the radiation emitted by the sample, including a lens that focuses the radiation on the imaging plane. [000...

AI Technical Summary

Problems solved by technology

If the resolution of previous molecular sensors is improved, the size of the portable device will be too large, the device will be too bulky, the information transmission will be inconvenient, and the optical components will need more calibration.

[0005] The photosensitivity of existing molecular sensors is not particularly ideal. Due to the material of the photosensitive area of ​​the sensor, the photosensitive diode has a low response rate to the visible-near-infrared band spectrum. Especially in the case of insufficient light, the quality of the image sensor will change. Unsatisfactory

[0006] Although previously proposed methods to increase the light absorption rate of the detector, additional lenses are required, which increases the complexity and size of the molecular sensor

Correspondingly, a method to reduce the size of the molecular sensor has been proposed. Although the size and optical path of the molecular sensor are reduced, the resolution, sensitivity and accuracy are reduced.

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