Optics Supplier, Germanium, Calcium Fluorides, IR lens
Optics Supplier, Germanium, Calcium Fluorides, IR lens
Biconvex lens (double convex)
Diameter tolerance | +0.00 / -0.12 mm |
Thickness tolerance | ±0.5 mm |
Clear aperture | 90% |
Surface quality | 40 – 20 scratch & dig |
Surface irregularity | λ/8 @ 633 nm |
| Material | BK7, UV Fused Silica, CaF2, ZnSe, and Ge substrates. |
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Biconvex lenses are basic optical lenses featuring two convex spherical surfaces that protrude from the center. Both surfaces share the same radius of curvature, causing the lens to converge parallel rays of light to a single point located beyond the lens.
- The optical material used determines the durability of the lens, as well as optical properties like index and refraction.
- The focal length depends on the optical material used to make the lens as well as on the radius of curvature of the lens itself.
- The radius of curvature is measured as the distance from the vertex of the lens surface to the center of curvature, measured along the optical axis.
Upon request, we can provide customized lenses to meet your specific requirements. Feel free to reach out to us to explore manufacturing capabilities, customized options, or to request an updated catalog of available on-shelf options.