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S-LAH99W |
An optical glass with an improved transmittance version of S-LAH99
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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.
Advantages
- Improved internal transmittance in the 360 – 550 nm range
- Maintains the high refractive index (Nd 2.001)
- Low specific gravity
- Excellent polishing characteristics of S-LAH99
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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 |
| λ 5 |
360 |
| Chemical durability |
RW (P) |
1 |
| RA(P) |
1 |
| W(S) |
1 |
| SR |
2.0 |
| PR |
1.0 |
| Specific Gravity |
5.02 |
| Knoop hardness Hk |
720〔7〕 |
| Abrasion degree Aa |
55 |
| Catalog data details |
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| Available Shapes |
・Pressings
・Polished Preforms
・Polished Lenses
・Aspherical Glass Mold Lenses |
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