| 摘要 |
FIELD: physics, optics. ^ SUBSTANCE: suggested invention is related to method and device for wave field focusing with the help of focusing elements set. Specified elements are arranged in the form of plates having mirror coating. At that mentioned plates are installed in focusing device circularly with gap between each other, symmetrically in relation to central axis of symmetry, and bent in certain manner to provide for required angles of beams deviation. ^ EFFECT: increased total aperture, optimisation of focusing properties of optical system. ^ 10 cl, 9 dwg |
