4 results about "Spectral imaging" patented technology

The invention relates to a method and a device for detecting stored-grain insects. A near infrared super-spectral imaging device for automatically acquiring grain screen underflows consists of five parts including a light box, a lighting unit, a displacement unit, a spectral imaging unit and a computer, wherein the spectral imaging unit comprises an indium-gallium-arsenic near infrared camera, an imaging spectrometer and a near infrared lens. The method for detecting stored-grain insects comprises the following steps of extracting the wavelength of an optimal spectrum synchronously containing data cube of both of live insect and dead insect, and determining the number of the live insects in stored-grain insects and the coordinate information of each live insect in the image; extracting sub-area of the image in which the live insects in the stored-grain insects are located, determining species information of the live insects in the stored-grain insects by identification software according to the near infrared spectrum characteristics of the live insects in the stored-grain insects, and realizing the automatic detection of the stored-grain insects.

The invention discloses a microimaging optical system of an imaging flow cytometry and relates to the field of optical instruments applied to biology and medicine. The system solves the problems of an existing optical system of the imaging flow cytometry that the number of spectral imaging channels is small, imaging quality can not reach diffraction limit, and the resolution of the cytometry can not be improved. The system comprises a microobjective, a secondary imaging lens set, a multi-spectral light splitter, a multi-spectral imaging lens and a TDI camera. Full-wave band high-resolution amplification imaging of a sample to be tested is achieved through the achromatic microobjective, then an intermediate image plane is obtained through the secondary imaging lens set, a field stop is placed at the position of the intermediate image plane, collision is conducted through the secondary imaging lens set, stack splitting is conducted through the multi-spectral light splitter, and then light is converged on the TDI camera through the multi-spectral imaging lens. According to the system, full-spectrum subband multiple structures are adopted, it is guaranteed that the imaging quality of the imaging optical system can reach diffraction limit in any spectrum channel, and the minimum detection size of the whole system reaches 40 nm.

The present invention provides a general spectral analysis system. The system comprises a light source, a first optical path component, a sample cell, a second optical path component and a spectral analysis module, wherein the first optical path component is used for focusing and coupling spectral analysis light generated by the light source into the sample cell; the second optical path componentis used for coupling the transmitted spectral analysis light which is absorbed by a liquid sample in the sample cell and emitted by the sample cell into the spectral analysis module; the spectral analysis module comprises a slit, a collimating mirror, a plane grating, a focusing mirror and a photoelectric detector; and the transmitted spectrum analysis light emitted by the second optical path component sequentially passes through the slit, the collimating mirror, the plane grating and the focusing mirror to be imaged at the photoelectric detector. The system has the advantages that the systemcan be widely used for spectral analysis of substances and especially used for liquid chromatographs and environmental measuring instruments and the like as a detection system; and aberrations of spectral imaging can be effectively corrected to obtain high-image quality spectra, so that the analysis work of the liquid sample is more accurately completed.