Paraboloid Mirror
Product Details
The traditional manual method is adopted to process the lager diameter paraboloid and hyperboloidlenswithBK7(ZKN4or Zerodur)material, useknife-edgeinstrument for test, with high processing accuracy,and the diameter can be within 900mm.surfaceaccuracy could beless than 1/40 lambda. We are .
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Material |
BK7, ZKN4,Zerodurect. |
|
Diameter tolerance |
+0.0/-0.15mm |
|
Diameter |
≤900mm |
|
Aspherical surface |
Paraboloid,Hyperboloid |
|
Focal length tolerance |
±2% |
|
Clear aperture |
≥90% |
|
RMS Irregularity |
1/40λ |
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Surface Quality |
60-40 |
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Bevel |
|
|
Coating |
Metal reflection coating/Dielectric reflection coating |
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