2 results about "Colorfulness" patented technology

A head for an oral care implement, the head comprises a number of colored filaments of different types, the filaments extending from a mounting surface of the head and being grouped together to define a color pattern. The number of colored filaments of different types comprises at least a first type of filament having time-controlled color changing properties and a second type of filament having time-controlled color changing properties, so that each of the first and second type of filament changes its color from an initial color to a second color within a pre-defined time period. The initial color of the first and second type of filament defining an initial color pattern (I), while the second color of the first and second type of filament defining a second color pattern (II). The change from the initial color pattern to the second color pattern is defined by a difference in value of colorfulness (III). The change in value of colorfulness (IV) is at least 5 in response to use and wear.

Some embodiments provide a lens including a lens body and an optical filter configured to attenuate visible light in certain spectral bands. At least some of the spectral bands can include spectral features that tend to substantially increase the colorfulness, clarity, and / or vividness of a scene. In certain embodiments, eyewear incorporates an optical filter that enhances chroma within one or more spectral bands. In some embodiments, a wearer of the eyewear can perceive the increase in chroma when viewing at least certain types of scenes.