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Avantier is a trusted partner in major space programs worldwide, offering extensive experience in high-precision opto-mechanical design, fabrication, and assembly. We provide cutting-edge solutions for space optical remote sensing payloads, including space telescopes, space cameras and satellite-borne optical cameras. Our systems are engineered to meet the stringent requirements of space science and Earth Observation (EO) missions, ensuring unparalleled quality, precision, and accuracy.
Avantier specializes in three key pillars to support the most demanding space missions:
Key Specifications for Lightweight Zerodur Mirrors:
Material | Zerodur (microcrystalline glass) |
Dimensions | Diameter 150 mm, Center thickness 40 mm |
Weight | 0.5 kg |
Surface Shape | ≤λ/20 (λ=632.8 nm) |
Surface Flatness | ≤0.05 nm |
Coating | Protected silver |
Custom Silicon Carbide (SiC) Mirror Specifications:
Material | Silicon Carbide |
Diameter | 25 – 800 mm |
Surface Shape | Flat (typical), Sphere, Aspheric |
Surface Flatness | Up to λ/100 RMS |
Coatings | Al, Ag, Au, and High Laser Damage Threshold Dielectric Coatings as needed |
Avantier manufactures Ritchey-Chrétien (RC) telescopes and SiC telescopes designed for demanding space missions, including those for small satellites.
Feature |
RC Telescopes |
SiC Telescopes |
Type |
Cassegrain Telescope |
Rich-Cleven type Telescope |
Material |
Aluminum, Primary and secondary mirrors coated with silver |
SiC |
Dimensions |
∅110×210.5 mm |
∅94 x 208 mm |
Weight |
0.3 kg (Total Lens) |
0.7 kg |
Aperture Range |
Consumer-Grade: ∅100 – ∅200 mm; Research-Grade: Up to ∅500 mm |
Consumer-Grade: ∅100 – ∅200 mm; Research-Grade: Up to ∅500 mm |
Focal Length & F/# |
760 mm – 1600 mm; F/5.6 – F/8 |
200-24000mm;f/1.8-f/2.5 |
Interface |
1-32 UN, compatible with C-mount cameras, flange-to-image distance 17.5mm |
Customized interface |
Spectral Coverage |
Visible to Near-Infrared (VIS–NIR) |
Ultraviolet to near-infrared |
On-Axis RMS |
<0.1λ |
<0.08λ |
Off-Axis RMS (0.5°) |
<0.2λ |
<0.12λ |
Mirror Reflectivity |
>95%(760-1600nm) |
>95% (400–12,000 nm) |
MTF |
>13%,108lp/mm |
>20% at 104.9 lp/mm |
Application Area |
How Avantier Optics Contribute |
Navigation with Optical Sensors |
Satellites use star trackers (high-precision cameras) for orientation and course correction. Space telescopes utilize complex mirror and lens systems to focus faint light from distant objects. |
Optical Communication |
Free-space laser communication enables high-bandwidth data transfer between spacecraft and Earth, or between spacecraft themselves. |
Space Telescopes |
Renowned applications of optical technologies, like the Hubble Space Telescope, which collects visible and ultraviolet light. |
Observation and Science |
Spectrometers analyze light to determine object composition. Lasers are used in lunar missions to search for ice deposits. |
Photovoltaic Devices |
Solar cells convert sunlight into electricity, powering spacecraft systems and recharging batteries. |
Avantier leverages cutting-edge capabilities:
Component |
Substrates |
Standard Specifications |
Coatings |
Key Features |
OAP Mirrors |
Aluminum |
Surface Roughness: R5 nm. Surface Accuracy: 1/10λ RMS. Surface Shape: 1/8λ. Surface Quality: 60-40. |
Aluminum (Protected, Enhanced, UV Enhanced), Gold (Protected, Bare), Silver (Protected, Ultrafast Enhanced) |
Customizable Specs & Coatings, Precision Manufacturing |
Optical Domes |
Fused Silica, Sapphire, Germanium, Zinc Selenide (ZnSe), MgF2 Ceramic |
Surface Accuracy: 1/10−1λ. Dimensional Tolerance: ±0.1 mm. Surface Quality: 20/10 to 60/40. Clear Aperture: 90%. |
Anti-Reflection (AR) Coatings |
Customizable Sizes, High Durability, Precision Manufacturing, Application Versatility |
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