High Accuracy Precision Polished Aspherical Lenses, D=50.00mm, F=37.50mm, Uncoated, United Optical Technology Co., Ltd (CAT#: STEM-OP-1320-YJL)

High Accuracy Precision Polished Aspherical Lenses, D=50.00mm, F=37.50mm, Uncoated, model 140633, is manufactured by United Optical Technology Co., Ltd.
High-precision polished aspheric lenses (Precision Aspheric Lenses) are different from molded aspheric lenses. They are lenses made using precision polishing processing methods. Large-diameter (≥ 10 mm) aspheric lenses have smaller aspheric surface errors. The surface of an aspherical lens is optimized to use a more complex outer surface, and the curvature gradually changes from the center of the lens to the outside of the lens edge to reduce spherical aberration. When focusing the collimated beam, it should be incident on the aspherical side of the lens, and when collimating the light emitted by the point source, it should be incident on the lens plane to achieve minimal spherical aberration.

Diameter: 50.00mm
EFL: 37.50mm
Coating: Uncoated
Material: H-ZF2
BFL: 24.74mm
NA: 0.66
CT: 21.34mm
ET: 7.47mm
Design Wavelength: 587.6nm
Diameter Tolerance: +0.00/-0.025mm
Center Thickness Tolerance: ±0.1mm
Clear Aperture: 0.9
Asphere Figure Error: RMS 0.25μm
Centering Tolerance: ＜1′
Surface Quality: 40/20

High-precision aspheric lenses have an aspheric surface shape error of RMS 0.25μm. Because the precision aspheric surface shape error is very small, these lenses are ideal for applications that require spherical aberration correction, including imaging applications and laser focusing applications.
Precision polished processing with smaller aspheric surface error.

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