| 摘要 |
The invention relates to an arrangement (100) for attenuating impinging light of a beam with finite expansion. The solution according to the invention aims to achieve reliable attenuation of, in particular, directly impinging light and suggests that the arrangement comprises: a light source (10) for producing a beam of unpolarised light, preferably unpolarised monochromatic light; a useful light region (50) through which said unpolarised light passes, preferably passing through in a straight line proceeding from the light source (10); as well as an absorption device (30) that is arranged downstream of said useful light region (50) and preferably downstream in the direct beam radiation direction, for the purpose of at least partially absorbing impinging light, said absorption device (30) comprising at least one polarisation device (31, 32) that is arranged in the direction of the light beam. |
