| 摘要 |
PCT/CH91/00260 A double reflector is described which comprises two spaced apart primary mirrors oriented toward a common focus. The optical system further comprises two separate secondary deflector mirrors as well as tertiary deflector mirrors for beam concentration on a common focus. Both the primary mirrors and the secondary deflector mirrors are so-called off-axis reflectors, i.e. their surface represent surface sectors of a hypothetical big aspherical mirror body each. As surface sectors of a hypothetical big hyperbolic mirror, the primary mirrors are inclined at an angle with respect to the common optical axis and each disposed at a given spacing from the same in such manner that the inner marginal rays of the incident radiation which are closest to the optical axis, will converge. As of a diameter of > 8 m, the primary mirrors are to be composed of individual segments, each be coupled (sic, the translator) with the respective associated segments of the secondary deflector mirror, which are located opposite them in the beam path, by way of a high-precision computer assisted measuring system such that each deviation of the primary mirror segments in their bearing position is enabled by a corrective movement of the respective opposite segments of the secondary deflector mirror, carried out in real time by way of actuators. Fig. 1 |
