| 摘要 |
The luminaire accommodates a light-sensor unit ( 10 ) adjacent plane P of its light-emission window ( 2 ). The light-sensor unit ( 10 ) has a light sensor ( 11 ) in a box ( 13 ) facing an opening ( 12 ) therein. The opening ( 12 ) is surrounded by a shade ( 20 ) which narrows towards the light sensor ( 11 ). In axial cross-sections of the shade ( 20 ), its inner surface ( 21 ) is convex. The shape of the inner surface ( 21 ) allows the use of a wide range of materials because the influence of ambient light on the observation of the light sensor ( 11 ) is counteracted. |
