| 摘要 |
<p>A contact lens (22) has at least one optical filter region (26, 28, 30) that can be surrounded by a clear optical region (31). The one or more filter regions (26, 28, 30) have a diameter such that an increasing percentage of visible light is transmitted to the pupil of the eye as lighting conditions change from high-intensity lighting environments to low-intensity lighting environments. The cooperation between the changing pupil and lens (22) provides an automatic adjustment of light intensity perceived by the wearer in response to the changing light conditions. Different filtering characteristics are provided in the filter regions to enhance perception of light corresponding to light reflected by an object or background scene used in outdoor sporting and recreational activities, while attenuating other reflected light.</p> |
