Positive Achromatic Lenses, D=25.40mm, F=250.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1720-YJL)

Positive Achromatic Lenses, D=25.40mm, F=250.00mm, VIS N-BK7/SF2, model 145062, 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: 25.40mm
EFL: 250.00mm
Coating: AR@400~700nm
Material: N-BK7/SF2
BFL: 246.70mm
Curvature Radius R1: 137.10mm
Curvature Radius R2: -111.50mm
Curvature Radius R3: -459.20mm
Center Thickness CT: 6.00mm
Center Thickness CT1: 4.00mm
Center Thickness CT2: 2.00mm
Edge Thickness ET: 5.20mm
Available Mount Ring: 500019
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.

Positive Achromatic Lenses, D=25.40mm, F=300.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1721-YJL)
Positive Achromatic Lenses, D=25.40mm, F=400.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1722-YJL)
Positive Achromatic Lenses, D=25.40mm, F=500.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1723-YJL)
Positive Achromatic Lenses, D=30.00mm, F=50.00mm, VIS N-BAF10/N-SF6HT, United Optical Technology Co., Ltd (CAT#: STEM-OP-1724-YJL)
Positive Achromatic Lenses, D=30.00mm, F=80.00mm, VIS N-BAF10/N-SF6HT, United Optical Technology Co., Ltd (CAT#: STEM-OP-1725-YJL)
Positive Achromatic Lenses, D=30.00mm, F=100.00mm, VIS N-BAF10/N-SF6HT, United Optical Technology Co., Ltd (CAT#: STEM-OP-1726-YJL)