Assembled Windows
These windows are assembled by four strict sized BK7 or Float glass with optical glue, they are mainly used in Automatic Self-Leveling machine.
SPECIFICATIONS
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Specifications: Material: BK7 or Equivalent Grade A Assembled Tolerance: ± 0.2mm Thickness Tolerance: ± 0.1mm Clear Aperture: >85% Parallelism: 6 arc seconds Surface Quality: 40-20 scratch and dig Flatness: λ/4 Bevel:0.20mm x 45deg Deflection of horizontal beam max.3 arc seconds(Inside→Outside) After gluing the outlook size must be within tolerance. |
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