The screen has a base plate (6) with a smooth, incident-ray surface (8) facing the sunlight. A reflection surface (16) faces away from the incident surface and which is formed by parallel, adjacent longitudinal protuberances. The plate is covered by a counter plate (7) on the reflection surface. The side of the counter plate facing away from the base plate has a smooth surface (9) parallel with the incident surface. The side of the counter plate facing the reflection surface has a negative surface (17) corresponding to the structure of the reflection surface. A gap (13) of constant thickness is formed between the base plate and counter plate or between the reflection and negative surfaces. ADVANTAGE - The sun screen strips can be seen through and do not distort vision.