| 摘要 |
<p>An optical device for controlling the brightness of light seen through the pupil by the eye. The device comprises an optical means having, in each of its points where there is non-zero transparency, an average transparency for the light reaching the pupil that varies in accordance with first predetermined rules taking into account the diameter of the pupil. The device may be used in eyewear and particularly in ophthalmological lenses and spectacles.</p> |
