Elliptical Mirror
Elliptical flat mirror provide a circular aperture and profile when aligned at 45° to an incoming beam, making them especially useful and efficient in periscope applications. Newport's elliptical secondary mirror provide a good combination of performance and value for general purpose applications.
Specification ofElliptical Mirror
|
Material |
BK7 or Fused Silica |
|
Design Wavelength |
|
|
BK7 |
|
|
Fused Silica |
|
|
Diameter Tolerance |
+0.00, -0.15 mm |
|
Thickness Tolerance |
±0.2 mm |
|
Paraxial Focal Length |
±2% |
|
Centration |
<3 arc minutes |
|
Clear Aperture |
>85% |
|
Surface Irregularity |
nm |
|
Surface Quality |
60-40 scratch and dig |
|
Protective Bevel |
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