IPL: We can supply varius kinds of IPL in different wavelength according to your needs. IPL: Material: BK7, Fused Silica, Sapphire, etc.Dimension Tolerance (mm): ±0.1 (General), +0.0/-0.01 (High Precision)Surface Quality: 60/40 (General), 20/10 (High Precision)Clear Aperture: >90% (General), >97% (High Precision)Parallelism: <1arc min. (General), <10arc sec.(High Precision)Flatness (per 25mm@ ...