Positive Achromatic Lenses, D=50.8mm, F=298.04mm, VIS-NIR N-LaK22/N-SF6, United Optical Technology Co., Ltd (CAT#: STEM-OP-1858-YJL)

Positive Achromatic Lenses, D=50.8mm, F=298.04mm, VIS-NIR N-LaK22/N-SF6, model 145283, 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: 50.8mm
EFL: 298.04mm
Coating: AR@400~1100nm
Material: N-LaK22/N-SF6
BFL: 289.51mm
Curvature Radius R1: 167.72mm
Curvature Radius R2: -285.82mm
Curvature Radius R3: ∞
Center Thickness CT: 13mm
Center Thickness CT1: 9mm
Center Thickness CT2: 4mm
Edge Thickness ET: 11.01mm
Available Mount Ring: 500011
Design Wavelength: 587.6nm
Diameter Tolerance: +0.0/-0.1mm
Center Thickness Tolerance: ±0.2mm
Surface Accuracy: λ/4 @632.8nm
Focal Length Tolerance: ±2%
Centering Tolerance: 3-5 arcmin
Surface Quality: 40/20~60/40
Bevel: 0.2mmX45°
n: --

Achromats create smaller spots of light than monolithic lenses.

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Positive Achromatic Lenses, D=50.8mm, F=496.83mm, VIS-NIR N-BaK4/N-SF10, United Optical Technology Co., Ltd (CAT#: STEM-OP-1860-YJL)
Positive Achromatic Lenses, D=50.8mm, F=596.2mm, VIS-NIR N-BaK4/N-SF10, United Optical Technology Co., Ltd (CAT#: STEM-OP-1861-YJL)
Positive Achromatic Lenses, D=15mm, F=60mm, VIS-NIR N-BaK4/N-SF10, United Optical Technology Co., Ltd (CAT#: STEM-OP-1862-YJL)
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Negative Achromatic Lenses, D=12.50mm, F=-40.00mm, VIS BK7/F2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1864-YJL)