An optical device that produces an additional optical path difference (or phase difference) between two perpendicular optical vibrations. It is usually made of a birefringent wafer of precise thickness, such as quartz, calcite, or mica, whose optical axis is parallel to the surface of the wafer.
|
Dimensional Tolerance |
+0.0,-0.2mm |
|
Clear Aperture |
＞90% |
|
Wavefront Distortion |
λ/8@633nm |
|
Smoothness |
40/20 Scratch /Dig |
|
Retardation Tolerance |
λ/300 |
|
Parallelism |
<1 arc second |
|
AR Coating |
Ravg<0.5% at Central Wavelength |
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