Calcium Fluoride Optical Windows
These windows are customized from CaF2. Although fluorides are generally harmful, the source describes insoluble CaF2 as harmless to humans. The windows are recommended when both infrared and ultraviolet transmission is needed. They are transparent from 0.15μm to 9μm, with very weak birefringence. The source also notes that calcium fluoride birefringence can exceed the permissible range and can be addressed by optimizing production. CaF2…
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dimensions [General] | 8.0,10,12.7,15，---30,etc. |
| Dimensions [High Precision] | 8.0,10,12.7,15，----30,etc. |
| Thickness [General] | 2.0,3.0,6.0,6.35,etc. |
| Thickness [High Precision] | 2.0,3.0,6.0,6.35,etc. |
| Dimension Tolerance [General] | +0.0/-0.1 |
| Dimension Tolerance [High Precision] | +0.0/-0.1 |
| Thickness Tolerance [General] | ±0.1 mm |
| Thickness Tolerance [High Precision] | +0.05 mm |
| Surface Quality [General] | 80/50 |
| Surface Quality [High Precision] | 20/10 |
| Clear Aperture [General] | >80% |
| Clear Aperture [High Precision] | >95% |
| Flatness（@633nm） [High Precision；@633nm；@633nm）] | λ/4 |
| Parallelism [General] | <3 arc min |
| Parallelism [High Precision] | <10 arc sec |
| Coating [General] | Uncoated,AR,PR,HR,etc. |
| Coating [High Precision] | Uncoated, AR, PR, HR,etc. |
Datasheet
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