4 results about "Nanostructured membrane" patented technology

The invention relates to the technical field of low-light imaging, and discloses a multi-spectral recognition-based low-light imaging system and method, and the system comprises a housing, an objective lens, a multi-spectral detector, and an image collection module. The objective lens is rotatably connected with the shell, the multispectral detector is electrically connected with the image acquisition module, and the multispectral detector, the image acquisition module and the shell are fixedly connected; the multispectral detector comprises a detector body and a micro-nano structure film layer, the micro-nano structure film layer covers one side, facing the objective lens, of the detector body, and the micro-nano structure film layer is used for modulating a projection spectrum. According to the invention, the micro-nano structure film layer is used for modulating the projection spectrum, so that the detector body can receive the spectrum modulation data of a plurality of wavebands at the same time, a target is found and recognized through spectral characteristics under a weak illumination condition, and the problems that the target background is complex, the night image noise is large, and the target is difficult to find and recognize are effectively solved. The night observation effect is improved, and the night operation capability is improved.

This invention discloses a visible light extended InGaAs detector and its fabrication method. According to this method, an internal structure is formed from bottom to top as p... + Type-contact metal electrode, oxide nitride passivation layer, p + Type InP contact layer, n ‑ Type InGaAsP composition graded layer, n ‑ Type InGaAs absorber layer, n + A photoelectric sensor based on a composite antireflective film system of InP contact layer and nanostructure was developed, and InGaAs detectors were fabricated from it, which improved the performance of the device. It can effectively absorb light in the visible to short-wave infrared band. At the same time, by combining layered thin films and nanostructures, the composite antireflective film system was constructed using the effective medium theory and film stack formula. Compared with single-layer substrate nanostructure film layer, it can effectively reduce the surface leakage current of InP contact layer. Compared with traditional layered medium antireflection film, it also has certain wide-spectrum and wide-angle antireflection characteristics.

A heat exchange system is disclosed which includes an air inlet, a membrane in fluid communication with the air inlet and adapted to have a partial vapor pressure difference across the membrane to thereby drive water vapor flux through the membrane, wherein the membrane is a selective membrane configured to allow passage of water vapor and block passage of air (O2 / N2) through the membrane, where the membrane includes a thermally conductive side, a vacuum pump configured to generate the partial vapor pressure difference across the membrane, and a heat exchanger coupled to the thermally conductive side of the membrane configured to provide simultaneous mass and heat transfer.

The present invention provides nanostructure compositions and methods of making nanostructure compositions. The nanostructure compositions comprise a population of nanostructures comprising a polythiol ligand having a pendant moiety. The polythiol ligand having a pendant moiety improves the solubility of the nanostructures in solvents and resins. The present invention also provides nanostructure films comprising the nanostructure compositions and methods of making nanostructure films using the nanostructure compositions.