Spherical: plano-convex, plano-concave, double-convex, double-concave, meniscus, dome lens, rod lens, ball lens, half ball
Cylindrical: plano-convex, plano-concave
Mixture: one side spherical, the other side cylindrical! We can offer!
Assembly: doublet, triplet, customer designed special lens kit
Usually lenses are not only used in visible band, but also in IR band and UV band, that means special material should be used. Now, Crystik can offer lenses made of various materials such as CaF2, MgF2, Sapphire, Silicon, Germanium, ZnSe and etc. Crystik can also provide various coatings for lenses upon your request.
Spherical Lens Specifications
Dimension Tolerance | +0/-0.2mm |
Thickness Tolerance | ±0.2mm |
Radius Tolerance | ±0.5% |
Surface Quality | 60/40 scratch and dig |
Power(fringe@633nm) | 3 |
Irregularity(fringe@633nm) | 0.5 |
Centration | <3 arc minutes |
Focal Length Tolerance | ±2% |
Clear Aperture | >90% |
Chamfer | Protective<0.5mmx45deg |
Cylindrical Lens Specifications
Material | BK7, Fused Silica |
Design Wavelength | 632.8nm |
Dimension Tolerance | +0/-0.2mm |
Thickness Tolerance | ±0.2mm |
Surface Quality | 60/40 scratch and dig |
Power(fringe@633nm) | 3 |
Irregularity(fringe@633nm) | 0.5 |
Centration | <3 arc minutes |
Focal Length Tolerance | ±2% |
Clear Aperture | >90% |
Chamfer | Protective<0.5mmx45deg |
Achromatic Lens Specifications
Material | Optical Glasses |
Design Wavelength | 480, 546.1, 643.8nm |
Dimension Tolerance | +0/-0.2mm |
Thickness Tolerance | ±0.2mm |
Surface Quality | 60/40 scratch and dig |
Power(fringe@633nm) | 3 |
Irregularity(fringe@633nm) | 0.5 |
Centration | <3 arc minutes |
Focal Length Tolerance | ±2% |
Clear Aperture | >90% |
Chamfer | Protective<0.5mmx45deg |
Coating | Single layer MgF2 coating @550nm |
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