An optical glass with an improved transmittance version of S-LAH99.
We are pleased to announce the release of a new optical glass type named S-LAH99W, which has improved internal transmittance in the 360 – 550 nm range while maintaining the high refractive index (Nd 2.001), low specific gravity and excellent polishing characteristics of S-LAH99. This new industry-leading, high index, glass provides an exciting new choice for optical designers and is very well suited for use in applications such Augmented Reality waveguides and other devices.
|S-LAH99W (New product)|
|Eco Optical Glass||〇|
|Refractive index nd||2.00100|
|Abbe number vd||29.14|
|CTE α (10 -7 K-1)||-30 ~ +70°C||75|
|+100 ~ +300°C||88|
|Transition point Tg (℃)||725|
|Yield point At (℃)||761|
|Coloring degree||λ 70||405|
|Chemical durability||RW (P)||1|
|Knoop hardness Hk||720〔7〕|
|Abrasion degree Aa||55|
|Available Shapes||・Pressings ・Polished Preforms ・Polished Lenses ・Aspherical Glass Mold Lenses|