- Changchun Ruike Optics Co.,LTD
- Main products: spherical lens, cylindrical lens, aspheric lens, prism
Home > Products > optical lenses > Optical BK7 CaF2 Mensicus lenses
Optical BK7 CaF2 Mensicus lenses
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Product Details
| Brand Name | ruike optics | Place of Origin | China | |
| Material | Glass | Usage | Optical | |
| Shape | Spherical | Structure | Double Convex |
Product Description
Meniscus Lens
Meniscus Lenses are convex and concave lenses. If the Convex curvature is bigger than concave , the lens will be positive meniscus lens. If the concave curvature is bigger than the convex.
Positive Meniscus Lenses may be used to increase the numerical aperture of a positive lens assembly, without an undue increase in the aberrations. Negetive Meniscus Lenses are the best lens form where one conjugates is relatively far from the lens or where both conjugates are the same size of the lens.
Meniscus lenses are used to reduce spherical aberration to a large extent.Smaller focal points and fewer aberrations can be obtained than plano-convex lenses.
Parameter of Meniscus Lens
Material:BK7 Fused Silica CaF2 MgF2 Sapphire Germanium Silicon ZnSe ZnS.
Diameter:0.5-600mm
Dia Tolerance:+/-0.02mm
Thickness Tolerance:+/-0.01mm
Centeration<30 arcmin
Flatness<1/20 lambda
Surface Quality:10-5
Coating: AR BBAR HR.
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- Changchun Ruike Optics Co.,LTD
- Contact nameDora Zhang Chat Now
- Phone86-151-04452660
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