| 摘要 |
FIELD: medical optics. SUBSTANCE: light filter represents solid solution of dye in poly(methyl methacrylate). For emission with wavelength 630 nm, solution of meso-phenylsubstituted zinc tetrabenzoporphin with small amount of pyridine is used, whereas for emission with wavelength 670 nm is used vanadyl tetra-3- (dibutylsulfamoyl)phthalocyanine. Light filter may further contain propylene carbonate in amount 11-13% based on initial poly(methyl methacrylate). EFFECT: narrowed absorption band in the region of medical-destination laser emission region ensuring preservation of color rendition in patient and also ensured higher laser stability of light filter during operations with higher-power lasers. 2 cl, 2 dwg |
