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Photonchina Aspheric Lens
OVERVIEW
What is Aspheric lens
An aspheric lens or asphere is a lens whose surface profiles are not portions of a sphere or cylinder, and is ideal for light collection, projection, illumination, detection, and condensing applications.
The most obvious benefit of aspheric lenses is their ability to correct spherical aberration, an optical effect creating a blur. Spherical aberration is commonly seen in spherical lenses, such as plano-convex or double-convex lens shapes, but aspheric lenses focus light to a small point, creating comparatively no blur and improving image quality. A Photonchina aspheric lens can be designed to minimize aberration by adjusting the conic constant and aspheric coefficients of the curved surface of the lens.
SPECIFICATION
- Diameter: custom mm
- Material: N-BK7, FS, UVFS, CaF2, ZnSe, Ge, H-ZLaF52, H-ZLaF50B, Not Specified, Other
- Effective Focal Length: custom mm
- Numerical Aperture (NA): custom
- Wavelength Range: 980 - 1064 nm
Applications
KEY FEATURES
Photonchina’s aspheric manufacturing capabilities
Standard
Premium
Photonchina ability
Diameter
10 - 150mm
10 - 150mm
10 - 150mm
Diameter Tolerance
+0/-0.100mm
+0/-0.025
+0/-0.010
Asphere Figure Error (P - V)
3μm
1μm
<0.06μm*
<!--0-->Vertex Radius (Asphere)
±0.5%
±0.1%
±0.05%
Sag
25mm max
25mm max
25mm max
Typical Slope Error
1μm per1mm window
0.35μm per 1 mm window
0.15μm per 1 mm window
Centering (Beam Deviation)
3 arcmin
1 arcmin
0.5 arcmin
Center Thickness Tolerance
±0.100mm
±0.050mm
±0.010mm
Surface Quality
(Scratch Dig)
80-50
40-20
10-5
Aspheric Surface Metrology
Profilometry (2D)
Profilometry (2D & 3D)
Interferometry
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