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| | | Piezo • Nano • Positioning | | |
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| | | PI Active Optics in Astronomical Telescopes | | |
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| | | Piezo Actuators Nanopositioning & Scannine) Systems | | |
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| | | Active Optics / Steering Mirrors | | |
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| | | Tutorial: Piezoelectric^ in Positipnizg Capacitive Positioe Senaors Piezo Drivers & Nano-posiooning Controllers Hexapods/ Micropositioning Photonics Alignment PSioelzuoti-oMnsotoren | | |
| | | Active tip/tilt mirror for the Subaru Telescope (Mauna Kea, Hawaii). Mirror diameter: 150 mm Tip/tilt range: ±600 urad Resonant frequency: 610 Hz | | Active tip/tilt mirror for the Subaru telescope, rear view. | | |
| | | View of the 8.2 m Subaru infrared telescope in Hawaii (from http://SubaruTelescope.org/ Index.html), printed with permission of NAOJ. | | |
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| | | Ceramic Linear M°tors & Stages Index | | |
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| | | Active tip/tilt mirror for the United Kingdom infrared telescope (UKIRT) on Mauna Kea, Hawaii with Hexapod 6-D alignment system (for information on Hexapod systems, see the "Hexapods / Micropositioning" section). Mirror diameter: 314 mm Tip/tilt range: ±500 urad Resonant frequency: 280 Hz | | Active secondary mirror for NASA Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii,with Hexapod 6-D alignment system (for information on Hexapod systems, see the "Hexapods / Micropositioning" section). Mirror diameter: 244 mm Tip/tilt range: ±250 urad Resonant frequency: 490 Hz | | Active tip/tilt mirror system for the Keck Outrigger telescope in Hawaii. The units are controlled by a high-performance digital controller with a fiber optic interface (not shown). Mirror diameter: 250 mm Tip/tilt range: ±150 urad Resolution: nanoradian range Position measurement: capacitive | | |
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| | | Active secondary tip/tilt mirror for the 2.2 m ESO (European Southern Observatory) telescope in La Silla, Chile. Mirror diameter: 100 mm Tip/tilt range: ±400 urad Resonant frequency: 900 Hz | | Telescope structure with active secondary mirror (from "Progress Report on DISCO: A Project for Image Stabilization at the 2.2 m Telescope," F. Maaswinkel, S. D'Odorico und G. Huster, ESO, F. Bortoletto, Istituto di Astronomia, University of Padova, Italy). | | |
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