Wide-field survey telescope Cartesian optical system

Abstract

The present invention discloses a wide-field survey telescope Cartesian optical system. The system comprises a primary mirror, a secondary mirror, an optical filter, a shading system, a correction mirror 1, a correction mirror 2 and a correction mirror 3. The shielding system comprises a secondary mirror shading cover and a correction mirror barrel, the middle portion of the primary mirror is provided with a primary mirror center hole, the correction mirror barrel is located in the center hole of the primary mirror, the internal portion of the correction mirror barrel comprises in order from left to right: the correction mirror 1, the correction mirror 2, the optical filter and the correction mirror 3 which are in seal connection; the secondary mirror is located at the left sides of the correction mirror barrel and the primary mirror, the secondary mirror shading cover is located at the right side of the secondary mirror and the secondary mirror shading cover is in seal connection withthe secondary mirror, the external parallel light is reflected through the primary mirror to regulate the direction so as to form reflect light 1, the reflect light is reflected through the secondarymirror to regulate the direction so as to form reflection light 2, and the reflect light passes through the correction mirror 1, the correction mirror 2 and the optical filter and the correction mirror 3 to be transmitted to the detector. The wide-field survey telescope Cartesian optical system can meet high demands such as the large field, the broad band, the high light passing amount and the high ultraviolet transmittance.

Description

technical field [0001] The invention relates to an optical system of an astronomical optical telescope, in particular to a Karnofsky optical system of a large field of view sky survey telescope. Background technique [0002] The significant improvement in the accuracy and capability of astronomical measurements will greatly promote human cognition of the universe. Continuously expanding the discovery space, improving the sensitivity, angular resolution, spectral resolution, time resolution and broadening the coverage of astronomical observations are the development directions of measured astronomy (Harwit 1984). The rapid development of modern astronomical technology and information technology has led to a breakthrough in the ability of large-scale acquisition of high-precision observation data in measured astronomy. At present, a single large field of view optical telescope can obtain observation data of more than PB size in one to several years of observation cycle, which...

AI Technical Summary

Problems solved by technology

The design scheme adopted by the existing optical telescopes in the world cannot meet the high requirements of the new generation of large-field survey telescopes, such as large field of view, wide-band, high-throughput light, and high ultraviolet transmittance.

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