| 摘要 |
The invention relates to a lamp comprising a tubular gas discharge lamp (1) provided with at least one concave reflector (2) which, when viewed from the area to be illuminated, is arranged next to the lamp (1), and provided with at least one at least partially transparent diffuser (3) which, also when viewe d from the area to be illuminated, is arranged next to the lamp (1), however, in front of the reflector (2). The diffuser (3) and the reflector (2) delimit, next to the lamp (1), at least one light entry surface and converge at their end located at a distance from the lamp (1). They converge such that they fo rm at least one light chamber (4), whereby the ratio between the width (a) of a light chamber and the height (b) of the light entry surface is equal to at least 4: 1. In addition, means can be provided in order to obtain a uniform luminance over the width of the reflector. |
