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Near and mid infrared glass, with a transmission band of 0.37-5 μm, and the refractive index (nd) ranging from 1.52 to 1.99. Its glass system includes the silicate system, the germanate system, the calcium aluminate system and the lead germanate system, etc.
Type | n4 | υ4 | n3-n5 | Tg(℃) | ρ(g/cm3) | 透过波段(μm) |
IRG102 | 1.6226 | 14.76 | 0.0422 | 754 | 3.10 | 0.4~5.5 |
IRG105 | 1.8541 | 18.92 | 0.0452 | 552 | 5.62 | 0.5~5.5 |