Description
Light Weight Technology
The Low Mechanical Deformation Large Size Optical Mirror Reducing Costs for
Space Launch Vehicles ⟹ Optimized Optical Performance with Light weighting Design
RS3S Off-axis
Primary Mirror, Zerodur
- Physical Aperture : 760x560mm(CC hyperboloid)
- Surface Errors : < Target 12nm rms
- Micro-Roughness : < 2 nm
- Light-weight Rate : > 65%
- For Earth Observation Telescope
SiC and Cordierite Mirror
Target Specification of SiC Mirrors
- Surface Errors : <15nm RMS (Typical <10nm RMS)
- Roughness : <2nm (Typical <1nm)
- Slope Errors : <1.5urad RMS
- Silver and Aluminum Coating with protective layer
- SiC without CVD process(Zero Void SiC)
and Lightweight (on-going)
Green Optics is developing world’s best class SiC polishing technology through the introduction of free high-speed aspherical grinding equipment of large optics.
PV 0.204λ / rms 25.95nm / Roughness Ra 0.796nm
