| 摘要 |
<p>The invention concerns an optical system (100) comprising: - a base (101) intended to be movably mounted in rotation about an axis of rotation (D), - at least two reflective elements (104) secured to said base (101), each extending over an angular sector and having the shape of a cone portion of which the axis coincides with said axis of rotation (D), at least two reflective elements (104) have the same half-angle at the apex theta, and of said at least two reflective elements (104), at least two have different distances 'e', distance 'e' being the distance measured parallel to the axis of rotation (D) between an origin point (O) of the axis of rotation (D) and the apex of the cone of the reflective element (104).</p> |
