A lens designed to minimize chromatic and spherical aberration. These two lenses are respectively made of two kinds of glasses with different dispersion capabilities. Two lens elements are combined so that chromatic aberration of one is canceled out by the other.
| Wavelength |
480.0.546.1.643.8nm
|
|
Clear
aperture
|
＞85%
|
|
Dimensional
tolerance
|
+0.0，-0.15mm
|
|
Focal
length tolerance
|
±/-2%
|
|
Eccentricity
|
3 arc minute
|
|
Surface
Figure
|
λ/4@632.8nm
|
|
Surface
Quality
|
60/40 Scratch/Dig
|
|
Chamfer
|
0.25mm*45°
|
|
Coating
|
λ/4@632.8nm
|
| Wavelength |
480.0.546.1.643.8nm
|
|
Clear
aperture
|
＞85%
|
|
Dimensional
tolerance
|
+0.0，-0.15mm
|
|
Focal
length tolerance
|
±/-2%
|
|
Eccentricity
|
3 arc minute
|
|
Surface
Figure
|
λ/4@632.8nm
|
|
Surface
Quality
|
60/40 Scratch/Dig
|
|
Chamfer
|
0.25mm*45°
|
|
Coating
|
λ/4@632.8nm
|
