| 摘要 |
<p>Optic guide comprises microprisms with one facet (21), directed towards face (15), having rib (22), formed with parallel face (14), inclined with angle a relative to guide axis, and having edge (23), formed with perpendicular face (15), inclined with angle relative to perpendicular to surface. Values for a and are determined from characteristics (n, 1, d) of optic guide. An Independent claim is also included for the measuring device or watch using illuminating mechanism.</p> |
