Crafting exceptional optical performance starts with precision-engineered components. The D12.7 Spherical Mirror Substrate delivers sub-nanometer surface accuracy (≤λ/10 @632.8 nm) in a compact 12.7mm diameter format, ideal for laser systems, semiconductor inspection tools, and high-resolution imaging devices. Made from ultra-low expansion (ULE®) glass or fused silica, this substrate ensures thermal stability (CTE ≤5×10⁻⁸/°C) and complies with ISO 9001:2015/MIL-PRF-13830B standards.
| Parameter | Specification |
|---|---|
| Dimension | D: φ12.7-φ50.8mm (±0.1), H: 4-8mm (±0.5) |
| Kickoff size | 1/2D < Kickoff size < D (customizable) |
| Curvature radius | SR: 500-8000 (customizable), accuracy ±0.05% |
| Surface accuracy | λ/2-λ/10@632.8nm |
| Spherical accuracy | 30"-3′ |
| Roughness | Ra0.12nm (Zygo profiler, 173*173μm area) |
| Materials | ULE, fused silica, zerodur, sapphire, K9, single crystal silicon |
Note: Specifications can be customized to meet your specific needs.

✅ Deterministic Microgrinding: Proprietary CNC processes achieve λ/20 surface figures with 100% interferometry validation, ensuring precision that exceeds industry standards. This deterministic approach guarantees repeatable results, ideal for mission-critical optics in aerospace and semiconductor manufacturing.
✅ Rapid Prototyping: Receive test-ready substrates in 15 working days—5x faster than industry averages. Our streamlined workflow combines advanced machining with in-house testing, enabling researchers and engineers to accelerate development cycles for new optical systems.
✅ Global Compliance: ITAR-free, REACH/ROHS-certified materials simplify international procurement. Compliance with global environmental and trade standards ensures seamless integration into supply chains for multinational projects in research, defense, and commercial industries.
Every D12.7 Spherical Mirror Substrate undergoes:
> "SNP Optical’s substrates reduced alignment time by 40% in our lithography modules. Their ISO 13485 compliance streamlined our FDA approvals."
> – Senior Engineer, Top 5 Semiconductor OEM
> "Zero coating delamination after 5,000 thermal cycles (-40°C to 85°C). Essential for our defense contracts."
> – R&D Director, Aerospace Supplier

Q: How does your ULE® glass handle thermal shifts in laser systems?
A: Our D12.7 Spherical Mirror Substrate has CTE ≤5×10⁻⁸/°C, preventing focal drift even at 10kW/cm² irradiance.
Q: Can I get AR coatings for 355nm lasers?
A: Yes—our dielectric coatings achieve R>99.5% at 355nm with 50J/cm² LIDT.
Q: What documentation accompanies orders?
A: Each shipment includes ISO 10110 compliance reports, material certificates, and RoHS declarations.
Q: Do you support small-batch R&D orders?
A: Absolutely! Prototype batches (1-5 units) ship in 15 days with full metrology data.
Need 50+ units or specialized coatings about D12.7 Spherical Mirror Substrate? Our engineers will optimize your design for:
📩 Email Requirements to: xachaona@163.com
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