| 摘要 |
<p>The unit (FA) has a screen (EC) including a diffusion element (LD) and placed in front of a light source (S) e.g. lamp, housed in a case (B), where a mask (MA) is placed in front of the screen. The mask has a functional hole (TF1) associated with the element and a non-functional hole (TN1) placed at a side of the functional hole. An occultation element (EO) i.e. planar flexible joint, is installed between the case and the mask behind the non-functional hole, and prevents light issued from the source from passing by the non-functional hole, where the element is made of synthetic rubber.</p> |
