Positive Achromatic Lenses, D=40.00mm, F=250.00mm, VIS BK7/SF12, United Optical Technology Co., Ltd (CAT#: STEM-OP-1733-YJL)

Positive Achromatic Lenses, D=40.00mm, F=250.00mm, VIS BK7/SF12, model 145075, 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: 40.00mm
EFL: 250.00mm
Coating: AR@400~700nm
Material: BK7/SF12
BFL: 246.13mm
Curvature Radius R1: 154.61mm
Curvature Radius R2: 101.67mm
Curvature Radius R3: 329.99mm
Center Thickness CT: 7.64mm
Center Thickness CT1: 5.14mm
Center Thickness CT2: 2.50mm
Edge Thickness ET: 5.73mm
Available Mount Ring: 500010
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=40.00mm, F=400.00mm, VIS BK7/SF12, United Optical Technology Co., Ltd (CAT#: STEM-OP-1734-YJL)
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Positive Achromatic Lenses, D=40.00mm, F=750.00mm, VIS BK7/N-SF5, United Optical Technology Co., Ltd (CAT#: STEM-OP-1736-YJL)
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Positive Achromatic Lenses, D=50.00mm, F=250.00mm, VIS BaK2/SF15, United Optical Technology Co., Ltd (CAT#: STEM-OP-1739-YJL)