Optical Baseplates

High-precision, dimensionally stable baseplates made from CFRP, Invar, and aluminum for spaceborne optical instruments — delivered as a complete turnkey solution from a single source.

ESA
MT-Aerospace
Thales_Alenia_Space
Almatech
Beyond Gravity
unibern0v2
University of Zurich

DIMENSIONAL STABILITY

Stability in the micrometer (µm) and microradian (µrad) range throughout the entire mission profile.

MATERIAL COMBINATION

CFRP M55J, Invar, and aluminum — strategically combined to meet the requirements of each application.

INTEGRATION-READY

Vacuum-compatible, tested, and bake-out cleaned for direct system integration.

The Structural Platform for High-Precision Optical Instruments

Optical baseplates, also known as optical benches, provide the structural platform on which mirrors, lens mounts, detectors, filter wheels, and beam splitters are precisely positioned relative to one another. In space applications, they must maintain their geometry within micrometer (µm) and microradian (µrad) tolerances under vacuum conditions, thermal cycling, and launch-induced vibrations.

We develop and manufacture optical baseplates made from CFRP, Invar, and aluminum, ranging from compact SmallSat platforms to large-scale optical benches for astronomical instruments.

Key Requirements for an Optical Baseplate

Dimensional and Positional Stability

Micrometer-level positional stability between optical components to ensure precise optical alignment throughout the mission.

Thermal Stability

Low effective coefficient of thermal expansion (CTE), maintaining dimensional stability even across large temperature variations.

High Natural Frequencies

Prevents resonance with launch loads and on-orbit microvibrations.

Bake-Out

Low-outgassing materials combined with an qualified bake-out process.

Three Materials – One Integrated Solution

Screenshot 2024 07 17 at 07.52.03

CFRP M55J + EX1515

High-modulus carbon fiber with a space-qualified resin system, offering ultra-high stiffness and tailored directional properties.

CFK M55J + EX1515

Invar 36

Near-zero thermal expansion for alignment-critical interfaces and inserts.
04_05_leistung_optimieren_sRGB_800x450px

Aluminum

Lightweight, highly machinable substructures for brackets, support frames, and mechanical interfaces.

From Raw Material to an Integration-Ready Optical Baseplate

Material Procurement

Manufacturing

Quality Assurance & Testing

Bake-Out

Delivery

Standard Size up to 1.5 m³ Enclosed Volume
Larger length and width dimensions are also possible. Contact us to discuss your specific requirements.

Your Point of Contact

Taylan Toprak

Head of Sales & Project Management, Connova Group

Graduate Aerospace Engineer (Technical University of Munich) with more than 30 years of experience, including long-term assignment at NASA’s Johnson Space Center in Houston for the ESA X-38 Program.

Your Point of Contact

Silvan Ventura

Project Lead Space Structures · Connova Group

More than 5 years of experience in the manufacturing of high-precision CFRP structures for space applications. Responsible for telescope structures and optical baseplates at the Connova Group, from the initial feasibility study through to flight-qualified delivery.

EN9100 Meets ISO 9001

Controlled and measurable quality throughout the entire value chain, from material procurement to final delivery, qualified for the most demanding European space programs.

EN 9100

Aerospace & Space

ISO 9001

Quality

Our Space Success Stories

CO2M (Sentinel 7) — Teleskopstruktur

ESA · COPERNICUS

CO2M

CFRP M55J / EX1515 platform developed for the CO₂ Monitoring Mission (CO2M), supporting global greenhouse gas emissions monitoring.

Comet Interceptor — CoCa Baseplate

ESA · COMET INTERCEPTOR

COCA

Optical platform Aluminium for the Comet Camera (COCA) aboard the Comet Interceptor mission.

RAMSES – CHANCES Telescope Structures

ESA · APOPHIS 2029

RAMSES

CFRP/Invar platform manufactured for the CHANCES telescope as part of the Apophis asteroid mission.

Optical Baseplates – Frequently Asked Questions

What is the difference between an optical baseplate and a telescope structure?

Space composites are advanced fiber-reinforced materials, typically carbon fiber reinforced polymers (CFRP), qualified for operation in the space environment. They combine minimum weight with exceptional specific stiffness and proven performance under vacuum conditions, cosmic radiation, and thermal cycling.

ESA SME is the designation awarded by the European Space Agency to small and medium-sized enterprises qualified to supply European space programs. Connova has maintained this status for many years, enabling direct contracting with ESA as well as Tier 1 integrators such as Thales Alenia Space and Almatech.

We work with the full spectrum of aerospace-qualified composite systems, including standard-, intermediate-, and high-modulus carbon fibers (e.g., M40J, IM7), glass fibers for radome applications, matrix systems ranging from epoxy resins to BMI and cyanate ester, as well as sandwich structures with Nomex® or aluminum honeycomb cores.

Low Outgassing refers to the requirement that materials release only minimal amounts of volatile substances when exposed to vacuum. In space, these substances could contaminate sensitive optical surfaces, including mirrors, lenses, and detectors, potentially compromising mission performance. We qualify our material systems according to the ESA standard ECSS-Q-ST-70-02.

Telescope Structures

Complete CFRP telescope structures from a single source →

CFRP Mirror Mount for GMT

Giant Magellan Telescope – Mirror Support Structure →

Connova – Precision You Can Rely On

Let’s work together to design the optical platform for your mission. No obligation, free of charge, and with no commitment required.

Aktuelle Neuigkeiten