Round edging can be provided for cylinder lenses: 1 mm – 2 R diameter and 350 mm (max.) on request
Tolerances
Radius variance up to 1000 mm: ± 1%, ± 5% beyond 1000 mm,up to ± 0.01 mm radius accuracy on request (depending on geometry)
Length: ± 0.1 mm
Width: ± 0.1 mm
Irregularity: λ/4 per 10 mm at 633 nm, reduced to λ/10 on request, optionally available with documentary proof of certification up to maximum diameter of 150 mm (depending on radius)
Edge thickness variance: up to ± 0.1 mm (centration), up to 1 μ on request
Higher precision on request.
Contact/Inquiry
Hellma USA Inc. 80 Skyline Drive 11803 Plainview, NY
United States