DIOPTIC DTC Diffractive Transmission Cylinder

DIOPTIC DTC cylinder testing lenses are specifically designed to test cylinder lenses. Testing concave and convex surfaces is equally possible; in both cases the inspection meets the most sophisticated requirements. Cylinder lenses can be tested with a high degree of accuracy, with a relative precision of the absolute radius of curvature of up to 50 ppm and a wave-front measurement accuracy of <10 nm rms or lambda/10 PV.

User-friendly alignment and highly accurate measurements – your advantages by using DIOPTIC diffractive cylinder testing lenses:

• Focal width or f number can be selected according to client’s specifications (up to f/0.5)
• Largest possible testing diameter for convex surfaces, as the custom designed object wave is created directly behind the diffractive optics
• Low disturbance thanks to short measuring distances when using the diverging order of diffraction for testing concave surfaces, as well as large curvature radii
• Additional auxiliary holograms to facilitate the alignment and measurement of the radii, with a relative precision of up to 50 ppm