首页>
外国专利>
CONTRAST ENHANCING FILTER FOR EYE GLASSES AND CONTRAST ENHANCING EYE GLASS
CONTRAST ENHANCING FILTER FOR EYE GLASSES AND CONTRAST ENHANCING EYE GLASS
展开▼
机译:眼玻璃对比增强滤镜和眼玻璃对比增强滤镜
展开▼
页面导航
摘要
著录项
相似文献
摘要
An optical filter for eye glasses, in particular suitable for spectacle lenses or ski goggles, has a spectral power transmission curve of optical radiations. The spectral power transmission curve exhibits a local maximum spectral transmission (Tmax) of radiations in a first wavelength range (Δλmax). The first wavelength range (Δλmax) is between 380 nm and 420 nm. The spectral power transmission curve exhibits spectral transmissions (T) of radiation in a second wavelength range (Δλth) which are lower than an upper threshold spectral transmission (Tth,u). The second wavelength range (Δλth) is between 420 nm and 500 nm and the upper threshold spectral transmission (Tth,u) is smaller than the maximum spectral transmission (Tmax). The maximum spectral transmission (Tmax) is larger than 21%.
展开▼