Achromatic Lenses
Achromatic lenses are common viewing optics made from two or more elements to correct chromatic aberration between two selected wavelengths. Whether mounted or cemented, the elements must remain fixed relative to one another. Correct front to back orientation is essential; reversed mounting causes distorted images and chromatic aberration.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material [General] | BK7,Fused Silica,etc. |
| Material [High Precision] | BK7,Fused Silica,etc. |
| Paraxial Focal Length Tolerance [General] | +2% |
| Paraxial Focal Length Tolerance [High Precision] | upon Tequest |
| Dimension Tolerance [General] | +0.2 mm |
| Dimension Tolerance [High Precision] | ±0.05 mm |
| Centration [General] | <3 arc min |
| Centration [High Precision] | upon request |
| IRR（@633nm） [General；@633nm；@633nm）] | N4 |
| IRR（@633nm） [High Precision；@633nm；@633nm）] | N10 |
| Clear Aperture [General] | >80% |
| Clear Aperture [High Precision] | >95% |
| Surface Figure（@633nm） [General；@633nm；@633nm）] | <1.5A |
| Surface Figure（@633nm） [High Precision；@633nm；@633nm）] | AN4 |
| Surface Quality [General] | 60/40 |
| Surface Quality [High Precision] | 10/5 |
| Bevel [General] | ≤0.25 mm |
| Bevel [High Precision] | upon request |
| Coating [General] | Uncoatde,AR,PR,HR,etc. |
| Coating [High Precision] | Uncoatde, AR,PR,HR,etc |
Applications
Datasheet
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Supplier Information
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