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Empowering the world’s observatories with precision mechanisms and optical systems
Ground-based telescopes are at the forefront of astrophysics, enabling high-resolution observation of the cosmos using increasingly sophisticated large optical and mechanical systems. At Sener, we design and manufacture critical subsystems for the world’s most advanced telescopes — from large mirror supports and structures to optomechanical assemblies that ensure stability, precision and long-term reliability in extreme conditions.
We provide engineering for mirror support cells, focusing and tilting systems and optical assemblies for telescopes such as the GTC, ELT (Extremely Large Telescope), WHT and other major observatories. Our solutions are engineered to maintain optical accuracy under thermal expansion, gravity deformation, and wind-induced vibration — all critical to data quality in ground astronomy.
Our contributions to the European Southern Observatory’s Extremely Large Telescope (ELT) include the design, integration, and delivery of the secondary (M2), tertiary (M3) and fifth mirrors (M5) cells —vital elements in telescope optics system. This work, alongside our development of M1 mirror manipulator, positions us among the top providers of large-scale optomechanical systems for modern observatories.
We are a trusted industrial partner for leading research institutions such as ESO, IAC and major scientific consortia across Europe since year 2000. Our multidisciplinary approach, combining mechanics, optics, software and control, allows us to deliver fully integrated systems with the precision required for cutting-edge astronomical instruments.
Our process begins with a detailed understanding of the optical performances and instrument environment. From there, we model, simulate and test all mechanical behaviours under real-world conditions. Every subsystem is qualified to withstand decades of operation in remote, high-altitude observatory locations.
We integrate structure, actuation and control into turnkey assemblies. Our experience includes both individual mechanism design and full mirror cell systems — including electronics, cabling, software and maintenance features — all fully tested and validated before delivery.
Sener designs and delivers advanced ground astronomy systems, including active mirror cells, focusing and tilting mechanisms, mobile structures, and instrument systems. We integrate control electronics and provide complete project support, from design to installation, ensuring long-term stability, precision alignment, and reliable performance for world-class telescopes and observatories.
At Sener, we empower world-class observatories with advanced subsystems that ensure optical stability and precision. From mirror support cells to complete optomechanical assemblies, our solutions withstand extreme conditions, enabling reliable, long-term performance. We provide integrated engineering services to support the next generation of astronomical instruments across the globe.
