| 摘要 |
<p>1439506 Optical apparatus ACUITY SYSTEMS Inc 8 Oct 1973 [27 Oct 1972] 46893/73 Heading G2J [Also in Division A5] An apparatus for relaxing the accommodation of an eye comprises a source of light, a lens located other than one focal length from the source for generating a non-focused visual stimulus, and means, e.g. a stop having a pinhole aperture, for directing the non-focused stimulus on to the retina of the eye, e.g. through a second lens.</p> |
