FS: Zerodur Optical Flats – λ/10 Verified – Double-Sided Polished – From U.S. Optics

[DrPete]

FS: Zerodur Optical Flats – λ/10 Verified – Double-Sided Polished – From U.S. Optics Lab
Made in USA | Fringe-Test Verified | Low Expansion Material
Intro Price: $25 each | Volume Pricing Below
Offering Zerodur λ/10 optical flats, made by a precision optics manufacturer in the U.S. and verified with HeNe test fringes (see photo). These are true lab-grade flats — optically polished on both sides, with precision-beveled edges and pristine surfaces.
Zerodur offers ultra-low thermal expansion, making these ideal for laser system alignment, interferometry, or precision metrology setups.
🔍 Specs:

• Diameter: 20 mm (0.79”)
  
• Thickness: 5 mm (0.20”)
  
• Flatness: λ/10 at 633 nm – verified
  
• Polish: Double-sided, uncoated
  
• Edges: Clean beveled
  
• Condition: New, no chips/scratches

🧪 Perfect For:

• Stable beam alignment platforms
  
• High-precision reference surfaces
  
• DIY interferometers
  
• Wavefront testing
  
• Laser lab setups

💵 Pricing:

• $30 retail value
  
• Introductory: $25 each
  
• 2 for $45
  
• 3 for $60

Free U.S. shipping on 2+ pieces.
Quantities are limited — sourced directly from a U.S. optics shop.
PM with questions or to order.
— Pete