| 摘要 |
The reflector (2) comprises a pliable plate connected to an adjustable power transmission device (3-5). The device acts between the supporting holder (1) for the reflector and the reflector itself, and causes the geometrical shape of the reflector to be variable by exertion of pressure and/or tractive force. The shape alteration of the reflector is from concave to flat and back again to concave, or from convex to flat and back again to convex. - A light source (7,8) arranged at the side of the reflector, comprises a lamp (7) and a screen (8), which directs light from the lamp at an angle towards the plane of the reflector. The reflector peripheral edge is fixed at least at two points, the radial distance of which from the centre of the reflector is variable. |
