In Stock Optical Flats Precision You Can Count On. Availability You Can Trust.
Ready When You AreLunt Optics maintains a curated inventory of ultra-precision optical flats—engineered, polished, and interferometrically certified for immediate deployment in high-performance optical systems. Ideal for laboratories, calibration benches, laser assemblies, and quality assurance environments where λ/20 to λ/30 flatness is a non-negotiable standard. Lunt Optics offers ultra-precision optical flats, polished and certified for immediate use in high-performance systems, perfect for labs and calibration setups.
Reference-Grade Flats All in-stock Lunt optical flats are manufactured to the same rigorous specifications as our custom products. Each flat is individually polished using our proprietary continuous pitch polishing process, resulting in exceptional flatness and surface uniformity, ready for immediate deployment.
Technical Advantages
Lunt’s in-stock optical flats are crafted with precision materials and processes to deliver metrology-grade performance.
Every in-stock optical flat from Lunt is the result of meticulous material selection, ultra-precise polishing, and rigorous interferometric testing.
🔹 Ultra-Precise Flatness: Polished to λ/20 to λ/30 peak-to-valley across > 90% of the clear aperture, verified with a Zygo phase-shifting interferometer for unmatched surface uniformity.
🔹 Trusted Materials: Available in UV-grade fused silica for high transmission and Zerodur® for ultra-low thermal expansion, ensuring stability in demanding environments.
🔹 Interferometric Certification: Each flat is shipped with a detailed certification report confirming flatness, material, and inspection date, providing confidence in performance.
🔹 Ready-to-Ship Inventory: Pre-tested and packaged in clean-room conditions, our in-stock flats are ready for immediate integration into your optical systems.