| 摘要 |
<p>The projection system according to the invention comprises a light generator (1), itself comprising, in order from upstream to downstream: a) at least one light emitting diode (3A-3D); b) at least one concentrator (7) provided with at least one reflecting surface (11, 70, 72) arranged to receive from upstream at least part of the light radiation emitted by the at least one light emitting diode (3A-3D); c) at least one optical waveguide (9) terminating with an emission end and arranged to receive from upstream at least part of the light radiation collected by the at least one concentrator (7) and to direct it as far as the emission end. Proceeding from upstream to downstream the cross-sections of the at least one reflecting surface progressively enlarge, reaching substantially at least one maximum, then progressively contracting. The cross-sections of the at least one optical waveguide (9) within a length thereof are substantially not greater than the cross-sections of the at least one concentrator (7).</p> |
