Cemented Lenses
Technical characteristics
Parameter |
Allowed values |
Radius R1, R2,R3,R4, mm |
2.5 to 12000 |
Diameter, mm |
3 to 120 |
Diameter tolerance |
f 8, h 8 |
Form deviation acc. to ISO10110-5 |
3/1 (0.25) |
Centering, arcmin |
≤1.0 |
Thickness tolerance, mm |
≥ ± 0.05 |
Surface quality acc. to ISO10110-7 |
5/3 х 0.16 |
Surface quality acc. to GOST 11141-84 |
PII – PV |
Cemented lenses constituents can be made of all types of fine-annealing colourless optical glass and fused silica. Optical adhesives UVN2000 and Vitralit 7256 which are solidifying by UV-radiation are used for lens cementing. Other optical adhesives can be used at the customer's request.