2 results about "Ultraviolet a" patented technology

The present application relates to the field of cosmetic technology, and in particular to an emulsified sunscreen and makeup fixing spray and a preparation method thereof.The spray comprises, by weight percentage, 25-40% of an oil phase composition, 1-5% of a powder composition, 0.1-2% of an active composition, and the balance of an aqueous phase composition; the aqueous phase composition comprises a water-soluble film-forming agent and a water-soluble sunscreen agent; and the oil phase composition comprises an oil-soluble film-forming agent and an oil-soluble sunscreen agent.The spray forms a strong, transparent and continuous composite film on the skin after spraying, and has stable sunscreen and makeup fixing effects, can effectively block ultraviolet radiation, effectively improve the long-wave ultraviolet protection index (SPF value) and the long-wave ultraviolet protection index (PFA value) of sunscreen cosmetics, and has a long-lasting makeup effect.

An intelligent diagnostic toilet system for automated stool analysis, consisting of: a diagnostic chamber integrated into the drainage path of a toilet system, wherein the chamber is equipped with a hydrophobic and oleophobic optical window made of quartz or coated acrylic material, configured to allow multispectral light transmission while preventing contamination; a multispectral optical sensor module positioned next to the diagnostic chamber and configured to emit and detect reflected or transmitted light in at least the visible, near-infrared (NIR) and ultraviolet A (UV-A) ranges to quantify stool components including water content, lipid content, hemoglobin and bile pigments; a fluidically coupled unit with the diagnostic chamber for the detection of volatile organic compounds (VOCs), comprising a variety of solid-state gas sensors selected from the group consisting of metal oxide semiconductor, conductive polymer and ion mobility sensors, and configured to measure gases containing ammonia, hydrogen sulfide, methane and volatile fatty acids; a chemical test system comprising an interchangeable cartridge assembly containing a plurality of reagent-impregnated filter paper strips, wherein the cartridge is connected to a swab actuator configured to dispense a micro-amount of stool onto one or more reagent strips to trigger colorimetric chemical reactions; an imaging unit that is optically aligned with the aforementioned chemical test system to acquire multispectral colorimetric data of the reacted reagent strips and thus determine the presence of specific biochemical markers; a self-cleaning subsystem consisting of an array of micro-nozzle spray nozzles directed at the optical window and chamber surfaces for applying cleaning fluid, and a UV-C sterilization module located inside or near the chamber to decontaminate the surfaces after each analysis cycle; and an embedded processing unit operationally connected to the multispectral optical sensor module, the VOC detection unit and the imaging unit, wherein the processing unit performs a data fusion technique configured to correlate spectral, gaseous and colorimetric data to determine stool properties, generate diagnostic indices and output user-specific health assessments via an encrypted communication interface.