Custom Half Ball Lenses

Half ball lenses are perfect hemispheres where the radius of curvature equals half the diameter (R = D/2). These lenses are ideal for fiber coupling, collimation, and beam focusing applications. The hemispherical shape provides excellent optical performance with minimal spherical aberration on axis.

Our configurator below provides instant online quoting for custom half ball lenses in N-BK7 (H-K9L) and UV Fused Silica (JGS1) materials. You can specify diameter and select optional AR coatings.

If you need materials, coatings, or specifications not available in the configurator, please contact us at [email protected] for a custom quote.

Note: It costs about as much to make one custom lens as it does to make ten, hence the minimum order quantity is 10 pieces. Large price drops occur as volume increases to 100 units.