Design and assembly of transmitter-telescope
| Autor: | Yao L.-S., J Liu, Sun J.-W., Lu T.-Y. |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Afocal photography
Engineering business.industry Astrophysics::Instrumentation and Methods for Astrophysics Cassegrain reflector Plane mirror Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Primary mirror Telescope Autocollimation Optics law Secondary mirror business Optical aberration |
| Zdroj: | Optics and Precision Engineering. 22:369-375 |
| ISSN: | 1004-924X |
| DOI: | 10.3788/ope.20142202.0369 |
| Popis: | On the structure characteristics of emission telescopes, this paper designs and assembles a 270 mm Mersenne reflecting afocal Cassegrain transmitter-telescope to achieve the laser emission and laser collimation. Firstly, the design method for an on-axis reflected system was determined and its system parameters were given. Based on the finite element method, the deformations of cylinder and truss primary mirror supporting structures and that of the three-beam and four-beam secondary mirror support structures were analyzed in the different working conditions, and the three-beam secondary mirror support structure and the truss structure were chosen to be used in the telescope. Furthermore, systematic optical aberration caused by the secondary mirror decentration was analyzed by adjusting primary and secondary mirror structures with the help of an interferometer and an autocollimation plane mirror and a sensitivity matrix was obtained to assembly, adjust and test the system. Finally, obtained results show that the systematic wavefront aberration RMS and PV are 0.146 7, and 0.739 41 respectively. It is proved that the design of the transmitter-telescope has a better imaging quality and satisfies the requirements of the optical design and laser emission. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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