Polished Ball Lenses - Ohara - #2

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O H A R A C O R P O R AT I O N 23141 Arroyo Vista #200 Rancho Santa Margarita, CA 92688 Tel: (949) 858-5700 Fax: www.oharacorp.com (949) 858-5455 50 Columbia Road Branchburg, NJ 08876 Tel: (908) 218-0100 Fax: (908) 218-1685 Polished Ball Lenses (S-LAH79) Glass Specification S-LAH79 n1530 1.955 nC 1.994 nd 2.003 Refractive Index nF 2.028 Abbe Number vd 28.3 1600 nm 1mmt 99.7% 1600 nm 3mmt 99.8% 1000 nm 1mmt 99.7% Internal Transmittance 1000 nm 3mmt 99.7% Coloring 70/ 5 46/37 CTE(x10-7/°C) (-30~+70°C) 60 (+100~+300°C) 71 Transformation Temperature Tg (°C) 699 Yield Point At (°C) 731 Specific Gravity 5.23 Knoop Hardness Hk (Class) 7 Abrasion Aa 61 Young's Modulus E (G Pa) 1255 Rigidity Modulus G G (G Pa) 484 Poisson's Ratio 0.297 Water Resistance RW(p) (Class) 1 Acid Resistance RA(p) (Class) 1 Weathering Resistance W(s) (Class) 2 S-LAH79 Glass Properties Optical Properties Thermal Properties Mechanical Properties Chemical Properties Please contact us to discuss your specific requirements.