| 摘要 |
<p>The invention relates to methods and devices for converting electromagnetic radiation (mainly of the optical region) for forming images of objects (mainly spatially extensive in incoherent light). The following elements are embodied by means of the inventive optical system (OS): a specified distortion of an optical ray path with the aid of an amplitude-phase mask (APM); an optical-electronic conversion of a distorted image of the object (6) and the subtraction of the OS and APM distortions. Said subtraction is carried out by means of a co-ordinated spatial filtration of the distorted image. The distortion of the optical ray path is carried out in a direction close to the orthogonal direction with respect to the distortions produced by the OS defocusing and aberrations, making it possible to obtain a distortion function which has rotation symmetry. The inventive device for carrying out said method comprises the OS provided with at least one lens (1,2,3,4, and 5), a unit for distorting the optical ray path in the form of the APM, an optical-electronic converter (9) of the distorted image and a unit for subtracting the distortions embodied in the form of a spatial filter (10).</p> |
