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It’s a **UV-grade flat mirror blank — a basic flat reflective optic used in laser and optical systems.
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Specifically:
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Diameter: 19.1 mm
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Thickness: 6.35 mm
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Substrate: UV-grade fused silica (excellent transmission in UV)
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Surface figure: better than λ/10 at 633 nm
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Surface quality: typically 10-5 scratch-dig
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Clear aperture ≥85% of diameter
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Designed for uncoated mirror applications or custom coatings as needed (often uncoated).
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These specifications are typical for a laser or high-precision optical mirror substrate that can be coated or used as is, depending on your needs (e.g., in beam steering, sampling, alignment, or laser diagnostics in the UV spectrum).
🧰 Typical Usage
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Laser systems operating in ultraviolet wavelengths
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Optical benches for beam steering
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Alignment and diagnostic setups requiring high flatness and low scatter



