Diameter | EFL | BFL | N.A. | CT* | ET** | Backside Shape | Surface Quality | Material | Uncoated |
mm | mm | mm | mm | mm | mm | PN# | |||
25 | 75 | 4.25 | 2.26 | Plano | 60-40 | N-BK7 | TO-25-75#0941 | ||
25 | 100 | 4.05 | 2.56 | Plano | 60-40 | N-BK7 | TO-25-100#0946 | ||
25 | 100 | 4.05 | 2.54 | Plano | 60-40 | N-BK7 | TO-25-100#0948 | ||
30 | 17.5 | 9.43 | 0.860 | 13.5 | 1.78 | Plano | 60-40 | H-ZF2/ N-SF5 | TO-30-17.5#0967 |
30 | 22.5 | 13.73 | 0.660 | 14.4 | 4.57 | Convex | 60-40 | L-BAL35 | TO-30-22.5#0965 |
30 | 24 | 27.94 | 0.561 | 9 | 2.65 | Plano | 60-40 | S-LAH64 | TO-30-24#0125 |
30 | 30 | 22.99 | 0.500 | 11.7 | 4.81 | Convex | 60-40 | L-BAL35 | TO-30-30#0966 |
40 | 25 | 15.73 | 0.800 | 15.5 | 1.49 | Plano | 60-40 | H-ZF2/ N-SF5 | TO-40-25#1056 |
40 | 30 | 20.6 | 0.660 | 15.5 | 2.56 | Convex | 60-40 | L-BAL35 | TO-40-20#0272 |
40 | 30 | 35.9 | 0.606 | 13.5 | 4.38 | Plano | 60-40 | S-LAH64 | TO-40-30#0947 |
40 | 40 | 30.68 | 0.500 | 15.5 | 6.39 | Convex | 60-40 | L-BAL35 | TO-40-40#0989 |
50 | 30 | 18.06 | 0.830 | 21.56 | 7.35 | Plano | 40-20 | 7980-0G/ N-SF6 | TO-50-30#1074 |
CT*: Center Thickness ET**: Edge Thickness |
Item | Capability | Tolerances | ||
Silver | Gold | Platinum | ||
Outer Diameter | 10mm-250mm | >=±0.10mm | ±0.05mm | ±0.01mm |
Center Thickness | >=1mm | >=±0.10mm | ±0.05mm | ±0.02mm |
Wedge(TIR) | >0.002mm | 0.100mm | 0.050mm | 0.010mm |
Asphericity (@50mm dia) | up to 5mm | <1mm | 1mm | >2mm |
Surface Figure PV@633nm | Lambda/2 | >1.5Lambda | Lambda | <Lambda/2 |
Surface Figure RMS@633nm | 0.05um | >0.2um | 0.2um | 0.06um |
Roughness | 0.5nm RMS | >2nm RMS | 2nm RMS | <1nm RMS |
Surface Quality | - | 60-40 | 40-20 | 20-10 and 10-5 |
Coating | Apply AR or reflecting coating or based on client requests |