Triplet lens is a compound lens consisting of three single lenses. Which is made of a low refractive index crown glass and two high refractive index flint glass. They are usually used to eliminate the spherical axial chromatic aberration. Triplet lenses are widely used in projection system, imaging system, laser measurement system and so on.
| Material | Optical glasses, Fused Silica, Corning 7980, CaF2 |
| Dimension Range | 3~200mm |
| Dimension tolerance | +/-0.01-+/-0.1mm |
| Thickness tolerance | +/-0.01-+/-0.1mm |
| Focal Length tolerance | +/-1% |
| Surface quality | 10-5~80-50 |
| Surface Figure | λ20-λ |
| Clear Aperture | >90% |
| Centration | 10”~ 5’ |
| Chamfer | C 0.3mm@45 degree |
| Coating | AR coating. Reflection coating. Splitter coating etc. |
| * Remark：Customized is available | |
