Positive Achromatic Lenses, D=50.00mm, F=250.00mm, VIS BaK2/SF15, United Optical Technology Co., Ltd (CAT#: STEM-OP-1739-YJL)

Positive Achromatic Lenses, D=50.00mm, F=250.00mm, VIS BaK2/SF15, model 145081, is manufactured by United Optical Technology Co., Ltd.
Achromatic lenses are used to correct color and minimize or eliminate chromatic aberration. In addition, the achromatic design also helps minimize spherical aberration. Achromatic lenses are suitable for various applications such as inspection or spectroscopy.

Diameter: 50.00mm
EFL: 250.00mm
Coating: AR@400~700nm
Material: BaK2/SF15
BFL: 245.23mm
Curvature Radius R1: 156.53mm
Curvature Radius R2: 118.33mm
Curvature Radius R3: 366.25mm
Center Thickness CT: 9.56mm
Center Thickness CT1: 7.31mm
Center Thickness CT2: 2.25mm
Edge Thickness ET: 6.70mm
Available Mount Ring: 500004
Design Wavelength: --
Diameter Tolerance: +0.0/-0.1
Center Thickness Tolerance: ±0.2
Surface Accuracy: λ/4@632.8nm
Focal Length Tolerance: ±2%
Centering Tolerance: 3~5 arcmin
Surface Quality: 40-20~60-40
Bevel: 0.2X45°
n: --

Achromats create smaller spots of light than monolithic lenses.

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Positive Achromatic Lenses, D=50.80mm, F=100.00mm, VIS N-BAF10/N-SF10, United Optical Technology Co., Ltd (CAT#: STEM-OP-1744-YJL)
Positive Achromatic Lenses, D=50.80mm, F=150.00mm, VIS N-BK7/SF5, United Optical Technology Co., Ltd (CAT#: STEM-OP-1745-YJL)