| 摘要 |
<p>According to the invention the illuminating device having a high luminosity factor is essentially characterized in that it comprises a light source (1) housed in a mirror (2), a truncated transparent sleeve (8) placed between said light source and a convex-plane lens (5), whereby an image-carrying device (6) and a projection objective (7) in the case of image projection devices are associated to said elements.</p> |
