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Optical Performance: 1. Wide spectral transmittance: 2. Low refractive index: 3. Low dispersion: Physical Performance 1. High melting point: 2. Mechanical strength: 3.Non-absorbent: Chemical properties 1. Chemical stability: 3. High damage threshold

Optical Performance: 1. Broad spectral transmittance: the material covers the range from 180 nm to 8.0 um in the ultraviolet to infrared band. 2. Low refractive index: its refractive index is low (1.35-1.51) 3. High damage threshold Physical Performance 1. Low absorption rate 2. Moderate hardness: Knoop hardness is158.3, ensuring durability and stability in various environments. 3. Good thermal stability: suitable for low temperature cooling thermal imaging system.

1. Wide spectral transmission range 2. Optical performance 3. Physical and chemical properties 4、Mechanical properties