A single lens used to form an image will always show some chromatic aberration, due to the variation of focal length with wavelength. Achromatic Doublet Lenses correct for this as they are constructed from two lenses manufactured from different glass types, high-index and low-index elements, designed to remove first order chromatic aberration. Generally spherical aberration is reduced at the same time.
Achromatic lenses are widely used to form images, for example in telescope objectives, and also to focus laser beams.These quality achromats have been designed and optimised for performance and are available as positive and negative focal length types. We stock a full range of doublet lenses from small 3mm diameters up to 110mm diameters to meet a range of demanding applications. Typical applications where achromatic doublet lenses are used are imaging, analysers, fibre-optic lighting, laser range finders, endoscopes, and borescopes.
We can offer custom achromatic doublet lenses to meet your requirements, contact our Technical Sales Team for help with your enquiry.
Mounting into lens cells.
Special AR coatings.
Cutting to special sizes.
Stock lenses can be edged to smaller diameters.
Coating:
Flint element AR coated for high index in the visible:
Single layer MgF2 AR for high index, R.avg<0.2%@550nm
Crown element AR coated for low index in the visible:
Single layer MgF2 AR, R.avg<0.2%@550nm
Some combinations are coated with broadband multilayer AR coating for extended visible:
Broadband Multilayer AR, R.avg<0.5%@450-900nm
| Name | Type | Focal Length (mm) | Diameter (mm) | Back Focal Length (mm) | Design Aperture (mm) | Centre Thickness (mm) | Edge Thickness (mm) | Price | Buy |
| LDB0504 | Positive | 5 | 4 | 3.1 | 3.3 | 3.6 | 2.7 |
£48.90
|
|
| LDB0806 | Positive | 8 | 6.25 | 5 | 5.3 | 5.8 | 4.3 |
£46.75
|
|
| LDB1006 | Positive | 10 | 6.25 | 7.6 | 4.8 | 5.7 | 4.4 |
£46.75
|
|
| LDB1306 | Positive | 12.5 | 6.25 | 10.5 | 5 | 4.4 | 3.5 |
£46.75
|
|
| LDB1606 | Positive | 16 | 6.25 | 14.2 | 5.3 | 4 | 3.3 |
£46.75
|
|
| LDB2005 | Positive | 20 | 4.7 | 18.25 | 4.2 | 3.6 | 3 |
£48.90
|
|
| LDB2505 | Positive | 25 | 4.7 | 23.45 | 4.2 | 3.2 | 2.73 |
£48.90
|
|
| LDB2506 | Positive | 25 | 6.25 | 23.4 | 5.3 | 3.6 | 3.2 |
£46.75
|
|
| LDB4006 | Positive | 40 | 6.25 | 38.5 | 5.3 | 3.3 | 3 |
£46.75
|
|
| LDB4010 | Positive | 40 | 10 | 38 | 9 | 4.3 | 3.5 |
£46.75
|
