Positive Achromatic Lenses, D=31.50mm, F=200.00mm, VIS BK7/SF12, United Optical Technology Co., Ltd (CAT#: STEM-OP-1728-YJL)

Positive Achromatic Lenses, D=31.50mm, F=200.00mm, VIS BK7/SF12, model 145070, 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: 31.50mm
EFL: 200.00mm
Coating: AR@400~700nm
Material: BK7/SF12
BFL: 196.90mm
Curvature Radius R1: 123.69mm
Curvature Radius R2: 81.34mm
Curvature Radius R3: 263.99mm
Center Thickness CT: 6.11mm
Center Thickness CT1: 4.11mm
Center Thickness CT2: 2.00mm
Edge Thickness ET: 4.63mm
Available Mount Ring: 500012
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=35.00mm, F=200.00mm, VIS BK7/F2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1729-YJL)
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Positive Achromatic Lenses, D=40.00mm, F=400.00mm, VIS BK7/SF12, United Optical Technology Co., Ltd (CAT#: STEM-OP-1734-YJL)