1997
DOI: 10.1364/ao.36.003708
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Active primary mirror support for the 21-m telescope at the San Pedro Mártir Observatory

Abstract: We have designed and installed a new set of actuators for the suspension of the primary mirror of the 2.1-m telescope at San Pedro Mártir. This active optics system has allowed us to correct low-order aberrations identified by several wave-front analysis techniques.

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Cited by 19 publications
(6 citation statements)
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“…The primary mirror of 2.1m telescope en SPM has an active Support System (SS) which allows small deformations of it [1]. The SS contents of 18 air bags B 1 , B 2…….. B 18 with controlled air pressures and 3 control points B 19 , B 20 , B 21 .…”
Section: Introductionmentioning
confidence: 99%
“…The primary mirror of 2.1m telescope en SPM has an active Support System (SS) which allows small deformations of it [1]. The SS contents of 18 air bags B 1 , B 2…….. B 18 with controlled air pressures and 3 control points B 19 , B 20 , B 21 .…”
Section: Introductionmentioning
confidence: 99%
“…However, large values of astigmatism remain. This is due to the primary mirror, as shown by Salas et al (1997), and was corrected with an active M1 cell. With these corrections in the primary cell, the astigmatism aberration was diminished until 80% of the encircled energy was contained in a 0Љ .6 diameter when a star was imaged by the telescope in the near-infrared.…”
Section: Devices and Experimental Resultsmentioning
confidence: 99%
“…Here, we suggest that they could be used as active optical correction devices, reducing the error budget requirements of the primary mirror of a telescope and its active support structure. Active correction of the optical aberrations induced by the primary mirror and support structure already exists on modern telescopes (Wilson et al 1991;Salas et al 1997), but the correction is done by an active support, not using a deformable mirror. One could also correct aberrations introduced by the telescope auxiliary optics.…”
Section: Introductionmentioning
confidence: 99%