Correction of distortions of the primary telescope mirror with the aid of a dynamic volume hologram: I

Using the study of a telescope with a dynamic holographic corrector as an e xample, the efficiency of application of the holographic technique to the c orrection of distortions of the primary mirror in observation telescopes is experimentally demonstrated. A volume dynamic hologram recorded in a photo refractive crystal was used to correct distortions of a mirror with an opti cal diameter of 150 mm in observations of point and extended objects emitti ng spectra of various types, including continuous spectra covering the visi ble region.