Products
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Bi-Convex Spherical BK7A
* Bi-convex lenses
* Finite conjugate imaging
* Focusing or optical imaging
Focal Length:
n: refractive index
R: radius curvature
Specifications:
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Material:
Surface Flatness:
Surface Quality:
Centration Error:
Focal Length Tolerance:
Diameter Tolerance:
Thickness Tolerance:
Clear Aperture:
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BK7A or UV Fused Silica
< λ/10 @ 633nm
< 10/5 (both sides)
≤ 3 arcmin
< ± 0.5%
< + 0.00 / - 0.20
< ± 0.25mm
≥ 85% of diameter
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