Frequently Asked Questions

A BK7 Meniscus lens is a type of lens that has one convex and one concave side.

A positive lens is a lens that converges light, while a negative lens diverges light.

The focal length of a lens is the distance from the lens to the spot where a collimated beam of light passing through the lens is converged or focused.

The Singlet Lenses are made of H-K9L or Fused Silica.

The surface quality of the Cylindrical Lenses is 40/20.

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