| 摘要 |
A device (10) in order to reflect a bunch of rays (30) towards a receiver (R). The system consists of two concave reflectors (12, 16). The invention describes also a system which deflects a bunch of rays towards a receiver by means of two convex refractors. According to the invention it is suggested that the reflectors (12, 16) are single-curved and have inter-crossing, especially right-angled crossing bending axis (14, 18). According to the invention it is suggested that the refractors (31, 32) are single-curved convex and have inter-crossing, especially right-angled crossing bending axis (14, 18). |
