|
|
|
Achromatic Lens
Lens
>>> Achromatic Lens
Achromatic Lenses consist of two or more elements, usually of crown and
flint glass that have been corrected for chromatic aberration with respect to
two selected wavelengths.
New Rise Optics provides achromatic lenses consisting of two elements. These
lenses have considerably reduced not only chromatic aberration bust also
spherical aberration and coma aberration. These are designed with respect
to three wavelength 480nm, 546.1nm and 643.8nm. They are best used in
replacing singlet where improved performance is required.
Specifications:
|
Design Wavelength: |
480nm, 546.1nm, 643.8nm |
|
Diameter Tolerance: |
-0.0, -0.15mm |
| Paraxial
Focal Length: |
± 2% @632.8nm |
| Centration: |
< 3 arc
minutes |
| Clear Aperture: |
>85% |
| Surface Figure: |
l/4@632.8nm |
| Surface Quality |
60-40 scratch and dig |
| Coating: |
Single layer MgF2@550nm |
| Bevel: |
0.25 mm x 45° |
|
|
|
|