L-LAH83
We are proud to have developed our L-LAH83 environmentally friendly optical glass which has the highest refractive-index and lowest dispersion, found in a low Transformation Temperature (Tg) glass.
This new material was designed to have a very low glass transition point so it could be mold pressed very effectively. These properties make L-LAH83 an ideal glass for use in the molding of precision glass aspheres.
This high index and low dispersion glass is suitable for use in molded components in compact optical systems, such as image pick-up lenses in digital cameras and lenses for optical communications.
| | L-LAH83 |
|---|
| Eco Optical Glass | ○ |
|---|
| Refractive Index nd | 1.86400 |
|---|
| Abbe Number νd | 40.6
40.58 |
|---|
CTE α
(10-7/°C) | -30～70°C | 68 |
|---|
| +100～300°C | 80 |
|---|
| Transformation Point Tg(°C) | 608 |
|---|
| Yield Point At(°C) | 658 |
|---|
| Coloring | λ70 |
370 |
|---|
| λ5 |
310 |
|---|
| Chemical Resistance | RW(P) | 1 |
|---|
| RA(P) | 2 |
|---|
| W(S) | 3 |
|---|
| SR | 3.2 |
|---|
| PR | 1.0 |
|---|
| Specific Gravity | 5.29 |
|---|
| Knoop Hardness Hk | 680 [7] |
|---|
| Abrasion Aa | 64 |
|---|
| Detail Catalog DATA | PDF |
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Available shape are pressing, saw cut center-less ground cylindrical blanks, polished ball and cut blanks.
Please consult us about available size and tolerance.
