Aspheric Lenses are used to eliminate spherical aberration in a range of applications, including bar code scanners, laser diode collimation, or OEM or R&D integration. Aspheric lenses utilize a single element design which helps minimize the number of lenses found in multi-lens optical assemblies.
Aspherical lens specification or based on clients' requirements | ||||
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 | 入/2 | >1.5入 | 入 | <入(ru)/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 |
The stock of aspherical lens